UNITY FIRST ACQUISITION CORP
S-4, 1999-04-15
PREPACKAGED SOFTWARE
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 15, 1999
 
                                                       REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-4
 
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                           --------------------------
 
                         UNITY FIRST ACQUISITION CORP.
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                                       <C>                                       <C>
                DELAWARE                                    6770                                   13-3899021
    (State or other jurisdiction of             (Primary Standard Industrial                    (I.R.S. Employer
     incorporation or organization)             Classification Code Number)                  Identification Number)
</TABLE>
 
                            ------------------------
 
                          245 FIFTH AVENUE, SUITE 1500
                            NEW YORK, NEW YORK 10016
                                 (212) 696-4282
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                         ------------------------------
 
                          LAWRENCE BURSTEIN, PRESIDENT
                         UNITY FIRST ACQUISITION CORP.
                          245 FIFTH AVENUE, SUITE 1500
                            NEW YORK, NEW YORK 10016
                                 (212) 696-4282
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                         ------------------------------
 
                                   COPIES TO:
 
         IRA I. ROXLAND, ESQ.                       CURTIS L. MO, ESQ.
       JOSEPH H. SCHMITT, ESQ.                    MICHAEL F. CYRAN, ESQ.
      COOPERMAN LEVITT WINIKOFF                    PAUL L. SIEBEN, ESQ.
        LESTER & NEWMAN, P.C.                BROBECK, PHLEGER & HARRISON LLP
           800 THIRD AVENUE                       TWO EMBARCADERO PLACE
       NEW YORK, NEW YORK 10022                       2200 GENG ROAD
            (212) 688-7000                     PALO ALTO, CALIFORNIA 94303
         FAX: (212) 755-2839                          (650) 424-0160
                                                   FAX: (650) 496-2885
 
                                            (SEE CALCULATION TABLE ON NEXT PAGE)
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this registration statement and the
effective time of the merger of GraphOn with and into the registrant.
 
    If any of the securities being registered on this form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. / /
 
    If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. / /
 
    If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
                           --------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SEC, ACTING PURSUANT TO SAID SECTION 8(A), MAY
DETERMINE.
 
    PURSUANT TO RULE 429, PROMULGATED UNDER THE SECURITIES ACT OF 1933, THE
PROSPECTUS FORMING A PART OF THIS REGISTRATION STATEMENT ALSO RELATES TO (I)(A)
1,250,000 SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE OF 1,250,000 CLASS A
REDEEMABLE COMMON STOCK PURCHASE WARRANTS AND (B) 1,250,000 SHARES OF COMMON
STOCK ISSUABLE UPON THE EXERCISE OF 1,250,000 CLASS B REDEEMABLE COMMON STOCK
PURCHASE WARRANTS (COLLECTIVELY, THE "IPO SECURITIES"), (II)(A) 125,000 SHARES
OF COMMON STOCK, (B) 125,000 SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE
OF 125,000 CLASS A COMMON STOCK PURCHASE WARRANTS AND (C) 125,000 SHARES OF
COMMON STOCK ISSUABLE UPON THE EXERCISE OF 125,000 CLASS B COMMON STOCK PURCHASE
WARRANTS ALL ISSUABLE TO THE MANAGING UNDERWRITERS OF THE IPO SECURITIES UPON
THE EXERCISE OF THE UNDERWRITERS' UNIT PURCHASE OPTION, AND (III)(A) 200,000
SHARES OF COMMON STOCK ISSUABLE UPON THE EXERCISE OF 200,000 CLASS A COMMON
STOCK PURCHASE WARRANTS AND (B) 200,000 SHARES OF COMMON STOCK ISSUABLE UPON THE
EXERCISE OF 200,000 CLASS B COMMON STOCK PURCHASE WARRANTS ISSUED TO CERTAIN
OFFICERS AND DIRECTORS OF REGISTRANT, ALL INITIALLY INCLUDED IN THE REGISTRANT'S
REGISTRATION STATEMENT ON FORM S-1 (FILE NO. 333-11165) DECLARED EFFECTIVE ON
DECEMBER 12, 1996.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
                                                                           PROPOSED MAXIMUM      PROPOSED MAXIMUM
       TITLE OF EACH CLASS OF SECURITIES              AMOUNT TO BE          OFFERING PRICE          AGGREGATE
                TO BE REGISTERED                       REGISTERED              PER SHARE          OFFERING PRICE
<S>                                               <C>                    <C>                    <C>
Common Stock, $.0001 par value..................  9,124,543 shares(1)                N/A            $6,513,070(2)
Common Stock, $.0001 par value..................  876,790 shares(3)            $    1.79            $1,569,454
Class A Warrants, each to purchase one
  share of Common Stock.........................  250,000 warrants(4)                 --                    --
Common Stock, $.0001 par value..................  250,000 shares(6)            $    5.50            $1,375,000
    Total.......................................                                     N/A            $9,457,524
 
<CAPTION>
 
       TITLE OF EACH CLASS OF SECURITIES               AMOUNT OF
                TO BE REGISTERED                   REGISTRATION FEE
<S>                                               <C>
Common Stock, $.0001 par value..................       $1,810.64
Common Stock, $.0001 par value..................       $  436.31
Class A Warrants, each to purchase one
  share of Common Stock.........................                (5)
Common Stock, $.0001 par value..................       $  382.25
    Total.......................................       $2,629.20
</TABLE>
 
(1) Reflects the maximum number of shares of registrant's common stock to be
    issued pursuant to the merger in exchange for GraphOn's common stock on the
    basis of 0.5576 shares of registrant's common stock for each share of
    GraphOn's common stock.
 
(2) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(f)(2). Since there is no current market for GraphOn's
    common stock, market value was based on the book value per share of
    GraphOn's common stock at December 31, 1998 multiplied by 16,363,959, the
    number of shares of GraphOn's common stock being acquired by registrant.
 
(3) Reflects the maximum number of shares of registrant's common stock issuable
    upon exercise of GraphOn's warrants that will be assumed by registrant
    pursuant to the merger on the basis of 0.5576 shares of registrant's common
    stock for each share of GraphOn's common stock.
 
(4) Reflects 250,000 Class A redeemable common stock purchase warrants
    exercisable for an aggregate of up to 250,000 shares of Unity common stock.
 
(5) No fee pursuant to Rule 457(g).
 
(6) Reflects 250,000 shares of Unity common stock issuable upon exercise of the
    Class A redeemable common stock purchase warrants.
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                                245 FIFTH AVENUE
                            NEW YORK, NEW YORK 10016
                                 (212) 696-4282
 
                                                                    May   , 1999
 
Dear Stockholder:
 
    Your board of directors cordially invites you to attend a special meeting of
stockholders of Unity First Acquisition Corp. to be held at 10:00 A.M., local
time, on May   , 1999, at 800 Third Avenue, 30th Floor, New York, New York.
 
    Our certificate of incorporation presently contains a provision that
requires us to be liquidated as a consequence of our failure to have completed a
merger with an operating business by November 12, 1998. At the meeting, you will
be asked to approve an amendment to our certificate of incorporation to defer
such liquidation pending the outcome of a vote, also to be taken at the meeting,
to approve our merger with GraphOn Corporation.
 
    The proposal to consider the merger with GraphOn Corporation will not be
considered at the meeting unless the holders of a majority of our outstanding
common stock approve the amendment to our certificate of incorporation. If such
amendment is not approved, we will be liquidated and our net assets of
approximately $5.28 per share will be promptly paid to our public stockholders.
 
    In determining whether or not you should approve the proposed amendment to
our certificate of incorporation, you should be aware that for more than two
years we had unsuccessfully attempted to effect a merger with several other
business concerns, the most recent of these attempts having been rejected by our
public stockholders on October 29, 1998.
 
    We have elected to proceed with the GraphOn merger, notwithstanding the
provision contained in our certificate of incorporation that required our
liquidation to have been completed by January 10, 1999, based upon our belief
that GraphOn's significant growth potential, although by no means assured,
outweighed the liquidation alternative.
 
    If the merger with GraphOn is not approved and completed by June 30, 1999,
we will be promptly liquidated.
 
    YOUR BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED BOTH THE AMENDMENT TO OUR
CERTIFICATE OF INCORPORATION AND THE MERGER AGREEMENT AND RECOMMENDS THAT YOU
VOTE "FOR" EACH OF SUCH PROPOSALS.
 
    Your participation at the meeting, in person or by proxy, is especially
important. Whether or not you plan to attend the meeting, I urge you to
complete, date, sign and promptly return your proxy card in the enclosed
pre-paid envelope to ensure that your shares will be represented in the meeting.
 
                                          Lawrence Burstein
                                          President
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                                245 FIFTH AVENUE
                            NEW YORK, NEW YORK 10016
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                           TO BE HELD ON MAY   , 1999
 
                            ------------------------
 
    NOTICE IS HEREBY GIVEN that a special meeting of stockholders of Unity First
Acquisition Corp., a Delaware corporation, will be held on May   , 1999,
commencing at 10:00 A.M., local time, at 800 Third Avenue, 30th Floor, New York,
New York, for the following purposes:
 
    1.  To consider and vote upon, as a single proposal, the following
amendments to Unity's certificate of incorporation:
 
    - To delete provisions in the certificate of incorporation that prevent the
      amendment of certain other provisions prior to consummation of a merger or
      similar business combination;
 
    - To delete the provision which called for the liquidation of Unity and the
      distribution of its net assets to stockholders by January 11, 1999 if
      Unity had not consummated a merger or other business combination by
      November 12, 1998; and
 
    - To add a provision that, in the event Unity does not consummate the merger
      with GraphOn Corporation by June 30, 1999, Unity will be liquidated and
      its net assets distributed to its public stockholders by August 29, 1999.
 
    2.  To consider and vote upon a proposal to approve and adopt an agreement
and plan of merger and reorganization, dated as of February 1, 1999, between
Unity and GraphOn, a California corporation, providing for, among other things,
the merger of GraphOn with and into Unity, and the issuance by Unity of
approximately 9,124,543 shares of its common stock to GraphOn's shareholders,
all upon the terms and conditions described in the merger agreement. A vote in
favor of the merger of GraphOn into Unity will also constitute approval of
Unity's assumption of the GraphOn 1998 Stock Option/Stock Issuance Plan and all
of the outstanding options issued under such plan.
 
    3.  To approve an adjournment or postponement of the special meeting, if
necessary, to permit further solicitation of proxies in the event there are not
sufficient votes at the special meeting to approve proposals 1 and 2, above.
 
    4.  To transact any other business incidental to the special meeting that
may properly come before such meeting or any adjournment or postponement
thereof.
 
    Copies of the proposed amendment to Unity's certificate of incorporation and
the merger agreement are attached as Exhibits A and B to the accompanying joint
proxy statement/prospectus. STOCKHOLDER APPROVAL AND ADOPTION OF THE MERGER
AGREEMENT AND THE ISSUANCE OF UNITY COMMON STOCK WILL RESULT IN A CHANGE OF THE
MAJORITY EQUITY OWNERSHIP, THE BUSINESS AND THE MANAGEMENT OF UNITY.
 
    April   , 1999 is the record date for the determination of stockholders
entitled to notice of and to vote at the special meeting. The affirmative vote
of the holders of a majority of all outstanding shares of Unity common stock
entitled to vote at the special meeting is necessary to approve and adopt the
merger agreement.
 
    HOLDERS OF UNITY COMMON STOCK ARE ENTITLED TO APPRAISAL RIGHTS UNDER
DELAWARE LAW IN CONNECTION WITH THE MERGER. HOLDERS OF UNITY COMMON STOCK ARE
ALSO ENTITLED TO CERTAIN CASH CONVERSION RIGHTS PURSUANT TO UNITY'S CERTIFICATE
OF INCORPORATION. If 20% or more of the shares of Unity common stock are offered
to Unity for conversion into cash and the holders of such shares vote against
the approval and adoption of the merger agreement, the merger will not be
consummated.
<PAGE>
    Whether or not you plan to attend the special meeting, please complete, date
and sign the accompanying proxy card and mail it promptly in the enclosed
pre-addressed envelope, which requires no postage if mailed in the United
States. The proxy card may be revoked at any time prior to the vote at the
special meeting by following the procedures set forth in this joint proxy
statement/prospectus.
 
                                        Norman Leben
                                        SECRETARY
 
May   , 1999
<PAGE>
                              GRAPHON CORPORATION
                              150 HARRISON AVENUE
                           CAMPBELL, CALIFORNIA 95008
                                 (408) 370-4080
 
                                                                    May   , 1999
 
Dear Shareholder:
 
    The board of directors cordially invites you to attend a special meeting of
shareholders of GraphOn Corporation to be held at 10:00 a.m., local time, on May
  , 1999, at 150 Harrison Avenue, Campbell, California.
 
    At the meeting, you will vote on a proposal to approve a merger between
Unity First Acquisition Corp. and GraphOn. If the merger is completed, you and
your fellow GraphOn shareholders will own approximately 65.4% of the combined
company on a fully diluted basis, which will retain the "GraphOn" name. I will
be President of this company.
 
    THE GRAPHON BOARD OF DIRECTORS HAS UNANIMOUSLY DETERMINED THAT THE MERGER IS
IN THE BEST INTERESTS OF GRAPHON AND ITS SHAREHOLDERS. THE GRAPHON BOARD HAS
APPROVED THE MERGER AND RECOMMENDS THAT YOU VOTE "FOR" THE MERGER AT THE
MEETING.
 
    Whether or not you plan to attend the meeting, I urge you to complete, date,
sign and promptly return your proxy card in the enclosed pre-paid envelope to
ensure that your shares will be represented in the special meeting.
 
                                        Walter Keller
                                        PRESIDENT
<PAGE>
                              GRAPHON CORPORATION
                              150 HARRISON AVENUE
                           CAMPBELL, CALIFORNIA 95008
                                 (408) 370-4080
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                           TO BE HELD ON MAY   , 1999
 
                            ------------------------
 
    NOTICE IS HEREBY GIVEN that a special meeting of shareholders of GraphOn
Corporation, a California corporation, will be held on May   , 1999, commencing
at 10:00 A.M., local time, at 150 Harrison Avenue, Campbell, California, for the
following purposes:
 
    1.  To consider and vote upon a proposal to approve and adopt an agreement
       and plan of merger and reorganization, dated as of February 1, 1999,
       between Unity First Acquisition Corp., a Delaware corporation, and
       GraphOn, providing for, among other things, the merger of GraphOn with
       and into Unity upon the terms and conditions described in the merger
       agreement. A vote in favor of the merger of GraphOn with and into Unity
       also will constitute approval of Unity's assumption of the GraphOn 1998
       Stock Option/Stock Issuance Plan and all of the outstanding options
       issued under such plan.
 
    2.  To approve an adjournment or postponement of the special meeting, if
       necessary, to permit further solicitation of proxies in the event there
       are not sufficient votes at the special meeting to approve proposal 1,
       above.
 
    3.  To transact any other business incidental to the special meeting that
       may properly come before such meeting or any adjournment or postponement
       thereof.
 
    A copy of the merger agreement is attached as Exhibit B to the accompanying
joint proxy statement/ prospectus. Shareholder approval and adoption of the
merger agreement means that GraphOn will cease to exist and all of its
shareholders will become stockholders of Unity, Unity will change its name to
"GraphOn Corporation" and its business, management and      will be identical to
those of GraphOn prior to the merger, and Lawrence Burstein will be added to the
board of directors of the surviving corporation. GraphOn has determined that the
merger will constitute an "initial public offering" within the meaning of
certain contracts by and between GraphOn and certain of its shareholders.
Accordingly, if the merger is completed, such shareholders of GraphOn no longer
will be entitled to certain preemptive and information rights. See "Description
of GraphOn's Securities--Preemptive Rights" and "--Information Rights."
 
    May   , 1999 is the record date for the determination of shareholders
entitled to notice of and to vote at the special meeting. The affirmative vote
of the holders of a majority of all outstanding shares of GraphOn common stock
entitled to vote at the special meeting is necessary to approve and adopt the
merger agreement.
 
    Holders of GraphOn common stock are entitled to dissenters' rights under
California law in connection with the merger.
 
 Whether or not you plan to attend the special meeting, please complete, date
 and sign the accompanying proxy card and mail it promptly in the enclosed
 pre-addressed envelope, which requires no postage if mailed in the United
 States. The proxy card may be revoked at any time prior to the vote at the
 special meeting by following the procedures set forth in this joint proxy
 statement/prospectus.
 
                                          Thomas A. Bevilacqua
 
                                          SECRETARY
 
May   , 1999
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                                      AND
                              GRAPHON CORPORATION
 
                             JOINT PROXY STATEMENT
 
                            ------------------------
 
                         UNITY FIRST ACQUISITION CORP.
 
                                   PROSPECTUS
 
                            ------------------------
 
    This joint proxy statement/prospectus is furnished by Unity First
Acquisition Corp., a Delaware corporation, to the holders of common stock of
Unity, and by GraphOn Corporation, a California corporation, to the holders of
common stock of GraphOn in connection with the respective solicitation of
proxies by the boards of directors of Unity and GraphOn for use at the special
meeting of stockholders of Unity and the special meeting of shareholders of
GraphOn, each to be held on May   , 1999. At each of the meetings, the
stockholders of Unity and GraphOn will consider and vote upon a proposal to
approve and adopt that certain agreement and plan of merger and reorganization,
dated as of February 1, 1999, between Unity and GraphOn (the "merger agreement")
providing for, among other things, the merger of GraphOn with and into Unity
(the "merger"). A vote in favor of the merger of GraphOn with and into Unity
also will constitute approval of Unity's assumption of the GraphOn 1998 Stock
Option/Stock Issuance Plan and all of the outstanding options issued under such
plan.
 
    Prior to considering the vote upon the proposal to approve and adopt the
merger agreement, the Unity stockholders will consider and vote upon a proposal
to amend Unity's certificate of incorporation to delete certain of its
provisions which would otherwise require Unity to be liquidated and to defer
such liquidation pending the outcome of the merger agreement vote (the "charter
amendment").
 
    Copies of the charter amendment and of the merger agreement are attached to
this joint proxy statement/ prospectus as Exhibits A and B, respectively. The
merger is expected to be completed as soon as possible after the Unity and
GraphOn special meetings.
 
    THE UNITY BOARD OF DIRECTORS RECOMMENDS THAT THE UNITY STOCKHOLDERS VOTE TO
APPROVE THE CHARTER AMENDMENT AND THE MERGER AGREEMENT AND THE TRANSACTIONS
CONTEMPLATED THEREBY. THE GRAPHON BOARD OF DIRECTORS RECOMMENDS THAT THE
SHAREHOLDERS OF GRAPHON VOTE TO APPROVE THE MERGER AGREEMENT.
 
    This joint proxy statement/prospectus also constitutes a prospectus of Unity
with respect to a maximum of 9,124,543 shares of Unity common stock to be issued
in exchange for the GraphOn common stock, a maximum of 876,790 shares of Unity
common stock issuable upon the exercise of GraphOn's warrants that will be
assumed by Unity pursuant to the merger agreement and 250,000 Class A redeemable
common stock purchase warrants exercisable for an aggregate of up to 250,000
shares of Unity common stock and the shares underlying the warrant.
 
    This joint proxy statement/prospectus and the enclosed proxy card are first
being mailed to the respective stockholders of Unity and GraphOn on or about May
  , 1999.
 
    Unity common stock is quoted on the OTC Bulletin Board under the symbol
UFAC. The closing bid price of Unity common stock on the OTC Bulletin Board on
May   , 1999 was $      .
                            ------------------------
 
SEE "RISK FACTORS" BEGINNING ON PAGE XIV FOR CERTAIN MATTERS YOU SHOULD
CONSIDER.
                            ------------------------
 
    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THE SECURITIES TO BE ISSUED PURSUANT
TO THIS JOINT PROXY STATEMENT/PROSPECTUS OR DETERMINED IF THIS JOINT PROXY
STATEMENT/PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
                            ------------------------
 
       The date of this joint proxy statement/prospectus is May   , 1999.
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
WHERE YOU CAN FIND MORE INFORMATION........................................................................          I
 
TRADEMARKS.................................................................................................          I
 
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS..................................................         II
 
JOINT PROXY STATEMENT/PROSPECTUS SUMMARY...................................................................        III
 
  The Companies............................................................................................        iii
  The Special Meetings.....................................................................................         iv
  Record Dates for Voting..................................................................................         iv
  Voting...................................................................................................         iv
  The Charter Amendment....................................................................................          v
  What You Will Receive in the Merger......................................................................          v
  Board Recommendations....................................................................................          v
  Interests of Certain Persons in the Merger...............................................................         vi
  Certain Possible Disadvantages of the Merger.............................................................         vi
  Directors and Management of Unity Following the Merger...................................................        vii
  Assumption of GraphOn Stock Option/Stock Issuance Plan...................................................        vii
  Conditions to the Merger.................................................................................        vii
  Termination of the Merger Agreement......................................................................        vii
  Regulatory Approval......................................................................................       viii
  Appraisal Rights.........................................................................................       viii
  Tax Consequences of the Merger...........................................................................       viii
  Accounting Treatment.....................................................................................       viii
  Exchange of Stock Certificates...........................................................................       viii
 
SUMMARY HISTORICAL FINANCIAL INFORMATION...................................................................         IX
 
SUMMARY PRO FORMA FINANCIAL INFORMATION....................................................................         XI
 
COMPARATIVE PER SHARE INFORMATION..........................................................................        XII
 
RISK FACTORS...............................................................................................        XIV
 
DILUTION...................................................................................................       XXII
 
INTRODUCTION...............................................................................................          1
 
SOLICITATION OF PROXIES....................................................................................          1
 
THE UNITY SPECIAL MEETING..................................................................................          1
 
  Purposes of Meeting......................................................................................          1
  Date, Time and Place; Record Date........................................................................          2
  Voting Rights............................................................................................          2
 
THE GRAPHON SPECIAL MEETING................................................................................          3
 
  Purposes of Meeting......................................................................................          3
  Date, Time and Place; Record Date........................................................................          3
  Voting Rights............................................................................................          3
 
THE CHARTER AMENDMENT......................................................................................          4
 
THE MERGER.................................................................................................          5
 
  General..................................................................................................          5
  Exchange Ratio...........................................................................................          6
  Unity Exchange Options...................................................................................          6
  Unity Merger Warrants....................................................................................          6
  Class A Redeemable Common Stock Purchase Warrant.........................................................          6
  Closing; Effective Time..................................................................................          7
  Exchange of Stock Certificates...........................................................................          7
  No Fractional Shares.....................................................................................          7
  Background of the Merger.................................................................................          7
  Recommendations of the Boards of Directors and Reasons for the Merger....................................         12
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
  Interests of Certain Persons in the Merger...............................................................         13
  Certain Tax Consequences of the Merger...................................................................         14
  The Merger Agreement.....................................................................................         14
  Absence of Certain Regulatory Filings and Approvals......................................................         19
  Restrictions on Sales by Affiliates and Other Shareholders...............................................         19
  Accounting Treatment.....................................................................................         19
  Expenses.................................................................................................         19
  Conversion Rights........................................................................................         19
  Appraisal Rights.........................................................................................         21
  Operations after the Merger..............................................................................         25
 
PRICE RANGES OF SECURITIES.................................................................................         26
 
  Unity....................................................................................................         26
  GraphOn..................................................................................................         26
 
SELECTED HISTORICAL FINANCIAL DATA OF GRAPHON..............................................................         27
 
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF GRAPHON...........         28
 
  Overview.................................................................................................         28
  Year Ended December 31, 1998 Versus Year Ended December 31, 1997.........................................         29
  Year Ended December 31, 1997 Versus Year Ended December 31, 1996.........................................         30
  Liquidity and Capital Resources..........................................................................         31
  Year 2000................................................................................................         31
  Quantitative and Qualitative Disclosures about Market Risk of GraphOn....................................         32
  Adoption of New Accounting Pronouncements................................................................         32
  Recently Issued Accounting Standards and Pronouncements Not Yet Adopted..................................         32
 
SELECTED HISTORICAL FINANCIAL DATA OF UNITY................................................................         34
 
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF UNITY.............         35
 
GRAPHON AND UNITY PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)...............................................         36
 
GRAPHON AND UNITY PRO FORMA BALANCE SHEETS-ASSETS AS OF DECEMBER 31, 1998 (GRAPHON) AND JANUARY 31, 1999
  (UNITY) (UNAUDITED)......................................................................................         37
 
GRAPHON AND UNITY PRO FORMA STATEMENT OF OPERATIONS FOR THE YEARS ENDED DECEMBER 31, 1998 (GRAPHON) AND
  JANUARY 31, 1999 (UNITY) (UNAUDITED).....................................................................         38
 
NOTES TO PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)........................................................         39
 
BUSINESS OF GRAPHON........................................................................................         41
 
  GraphOn..................................................................................................         41
  Industry Background......................................................................................         41
  The GraphOn Approach.....................................................................................         42
  Products.................................................................................................         44
  Target Markets...........................................................................................         44
  Strategic Relationships..................................................................................         45
  Sales, Marketing and Support.............................................................................         46
  Research and Development.................................................................................         47
  Operations...............................................................................................         47
  Competition..............................................................................................         47
  Proprietary Technology...................................................................................         48
  Employees and Facilities.................................................................................         48
  Legal Proceedings........................................................................................         49
 
MANAGEMENT OF GRAPHON......................................................................................         50
 
  GraphOn Board............................................................................................         52
  Executive Compensation and Employment Agreements.........................................................         53
  1998 Stock Option/Stock Issuance Plan....................................................................         54
 
CERTAIN RELATIONSHIPS AND TRANSACTIONS.....................................................................         56
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
PRINCIPAL SHAREHOLDERS OF GRAPHON..........................................................................         58
 
DESCRIPTION OF GRAPHON'S SECURITIES........................................................................         60
 
  General..................................................................................................         60
  Common Stock.............................................................................................         60
  Preferred Stock..........................................................................................         60
  Dividends................................................................................................         60
  Preemptive Rights........................................................................................         60
  Spencer Trask Warrants and Similar Warrants..............................................................         61
  Corel Warrant and Similar Warrant........................................................................         61
  Registration Rights......................................................................................         62
  Shares Eligible for Future Sale..........................................................................         63
  Information Rights.......................................................................................         64
  Transfer Agent...........................................................................................         64
 
BUSINESS OF UNITY..........................................................................................         64
 
MANAGEMENT OF UNITY........................................................................................         65
 
  Prior to the Merger......................................................................................         65
  Stock Option Plan........................................................................................         66
  After the Merger.........................................................................................         67
 
PRINCIPAL STOCKHOLDERS OF UNITY............................................................................         68
 
DESCRIPTION OF UNITY'S SECURITIES..........................................................................         70
 
  General..................................................................................................         70
  Common Stock.............................................................................................         70
  Preferred Stock..........................................................................................         70
  Dividends................................................................................................         70
  Transfer Agent...........................................................................................         70
  IPO Warrants.............................................................................................         71
  Underwriters' IPO Securities.............................................................................         72
  Directors' Warrants......................................................................................         72
 
COMPARISON OF RIGHTS OF HOLDERS OF UNITY COMMON STOCK AND GRAPHON COMMON STOCK.............................         73
 
  Application of the General Corporation Law of California to Delaware Corporations........................         80
  Comparison of Certificate of Incorporation and Bylaws of Unity and Articles of Incorporation and Bylaws
    of GraphOn.............................................................................................         80
 
LEGAL MATTERS..............................................................................................         81
 
EXPERTS....................................................................................................         82
 
INDEX TO FINANCIAL STATEMENTS..............................................................................        F-1
 
EXHIBITS
 
  Excerpts from Restated Certificate of Incorporation of Unity First Acquisition Corp......................        A-1
  Agreement and Plan of Merger and Reorganization..........................................................        B-1
  Section 262 of the Delaware General Corporation Law......................................................        C-1
  Sections 1300-1312 of the California Corporations Code...................................................        D-1
</TABLE>
<PAGE>
    No person has been authorized by Unity or GraphOn to give any information or
to make any representation not contained in this joint proxy
statement/prospectus in connection with the solicitation of proxies or the
offering of securities made hereby and, if given or made, such information or
representation must not be relied upon as having been authorized by Unity or
GraphOn. This joint proxy statement/ prospectus does not constitute an offer to
sell or a solicitation of an offer to buy the securities offered by this joint
proxy statement/prospectus or a solicitation of a proxy in any jurisdiction
where, or to any person to whom, it would be unlawful to make such an offer or
solicitation.
 
    Neither the delivery of this joint proxy statement/prospectus nor any
distribution of the securities to which this joint proxy statement/prospectus
relates shall, under any circumstances, create an implication that there has
been no change in the information contained herein since the date hereof.
 
                      WHERE YOU CAN FIND MORE INFORMATION
 
    Unity files annual, quarterly and current reports, proxy statements and
other information with the SEC. You may read and copy any reports, statements or
other information on file at the SEC's public reference rooms in Washington,
D.C., New York, New York and Chicago, Illinois. Please call the SEC at (800)
SEC-0330 for further information on the public reference rooms. Unity's public
filings also are available to the public from commercial document retrieval
services and at the Internet site maintained by the SEC at "http://www.sec.gov."
Reports, proxy statements and other information concerning Unity also may be
inspected at the offices of The Nasdaq Stock Market, 9801 Washingtonian
Boulevard, Rockville, Maryland 20878.
 
    Unity has filed with the SEC a registration statement on Form S-4 to
register the shares of Unity common stock to be issued to GraphOn's shareholders
in connection with the merger, certain other shares and warrants. This joint
proxy statement/prospectus is a part of that registration statement and
constitutes a prospectus of Unity as well as a proxy statement of Unity and
GraphOn for the meetings.
 
    Although this joint proxy statement/prospectus contains all material
information that you can find in the registration statement, parts of the
registration statement have been omitted from this joint proxy
statement/prospectus as permitted by the rules and regulations of the SEC.
Copies of the registration statement, including the exhibits to the registration
statement and other material that is not included in this joint proxy
statement/prospectus, may be inspected, without charge, at the offices of the
SEC referred to above, or obtained at prescribed rates from the public reference
section of the SEC at the address set forth above.
 
    GraphOn has supplied all information contained in this joint proxy
statement/prospectus relating to GraphOn, and Unity has supplied all information
contained herein relating to Unity.
 
                                   TRADEMARKS
 
    This joint proxy statement/prospectus contains trademarks of GraphOn and may
contain trademarks of others. Such trademarks of GraphOn include the following:
 
    - jBridge-TM-
 
    - GO-Between-TM-
 
    - GO-Global-TM-
 
    - GO-Joe-TM-
 
                                       i
<PAGE>
           CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
 
    The following statements are or may constitute forward-looking statements
within the meaning of the Private Securities Litigation Reform Act of 1995 (the
"PSLRA"):
 
        (1) Certain statements, including possible or assumed future results of
    operations of Unity, GraphOn and the combined company, which will be called
    "GraphOn Corporation," contained in "Risk Factors," "The Merger,"
    "Management's Discussion and Analysis of Financial Condition and Results of
    Operations of GraphOn," "Management's Discussion and Analysis of Financial
    Condition and Results of Operations of Unity," "Business of GraphOn" and
    "Business of Unity," including any forecasts, projections and descriptions
    of post-merger synergies referred to therein and any statements contained
    herein regarding the development of possible or assumed future results of
    operations of post-merger GraphOn's business, post-merger GraphOn's
    competitive position or the scope and enforceability of post-merger
    GraphOn's intellectual property rights;
 
        (2) Any statements preceded by, followed by or that include the words
    "believes," "expects," "anticipates," "plans," "intends" or similar
    expressions; and other statements contained or incorporated by reference
    herein regarding matters that are not historical facts.
 
    These forward-looking statements are not historical facts but rather are
based on current expectations, estimates and projections about our industry, our
beliefs and assumptions.
 
    These statements are not guarantees of future performance and are subject to
risks and uncertainties, some of which are beyond our control, are difficult to
predict and could cause actual results to differ materially from those expressed
or implied by such forward-looking statements. Factors that could cause actual
results to differ materially include, but are not limited to, those discussed
under "Risk Factors." Unity and GraphOn shareholders are cautioned not to place
undue reliance on such statements, which speak only as of the date thereof.
 
    The independent public accountants for Unity and GraphOn have not examined
or compiled the accompanying forward-looking statements or any forecasts or
other projections referred to herein and, accordingly, do not provide any
assurance with respect to such statements.
 
    The cautionary statements contained or referred to in this section should be
considered in connection with any subsequent written or oral forward-looking
statements that may be issued by Unity or GraphOn or persons acting on its or
their behalf. Neither Unity nor GraphOn undertakes any obligation to release
publicly any revisions to any forward-looking statements to reflect events or
circumstances after the date hereof or to reflect the occurrence of
unanticipated events.
 
                                       ii
<PAGE>
                    JOINT PROXY STATEMENT/PROSPECTUS SUMMARY
 
    This summary highlights selected information from this document and may not
contain all of the information that is important to you. To understand the
amendments to the certificate of incorporation of Unity fully, you should
carefully read the text of such amendments and the detailed description thereof
we have referred you to. To understand the proposed charter amendment and merger
fully and for a more complete description of their legal terms, you should
carefully read this entire document and the documents we have referred you to.
See "Where You Can Find More Information." The charter amendment and the merger
agreement are attached as Exhibits A and B to this joint proxy statement/
prospectus. We encourage you to read these attachments. They are the legal
documents that govern the merger.
 
THE COMPANIES
 
    UNITY FIRST ACQUISITION CORP.
 
    245 Fifth Avenue
 
    New York, New York 10016
 
    (212) 696-4282
 
    Unity was formed in May 1996 to serve as a vehicle to merge with an
operating business which Unity believes has significant growth potential.
 
    In November 1996, Unity successfully completed a public offering of units,
each consisting of one share of common stock and two common stock purchase
warrants.
 
    Approximately 93.8% of such offering proceeds, including interest, is
presently held in a trust account awaiting the result of the vote that you are
being asked to cast upon the proposed charter amendment. If you approve the
charter amendment and the merger, these funds will be released to Unity once the
merger is completed. The balance of such offering proceeds, now virtually
exhausted, comprise Unity's day to day working capital.
 
    One of the conditions to the completion of Unity's public offering was
Unity's agreement with the underwriters of such offering that if Unity was
unable to complete a merger with a business concern by November 12, 1998, Unity
would be liquidated. Unity's board of directors has determined that the merger
is more advantageous to the Unity stockholders than liquidation, and is seeking
your approval to proceed with the merger. If Unity had been liquidated within 60
days of November 12, 1998, as provided in Unity's certificate of incorporation,
you would have received a cash distribution of approximately $5.28 per share.
 
    GRAPHON CORPORATION
 
    150 Harrison Avenue
 
    Campbell, California 95008
 
    (408) 370-4080
 
    GraphOn develops, markets, sells and supports server-based software for the
enterprise computing environment. "Server-based computing", sometimes referred
to as thin-client computing, is a computing model where traditional desktop
software applications are relocated to run entirely on a server or host
computer. GraphOn's technology uses a small software program at each desktop,
which allows the user to interface with an application as if it were running on
the user's desktop computer. This centralized deployment and management of
applications reduces the complexity and total costs associated with enterprise
computing. In addition, by accessing such applications over the Internet, new
operational models and sales channels are emerging. GraphOn provides the
technology to access applications over the Internet. GraphOn's server-based
technology works on today's most powerful personal computer or low-end network
computer, without application rewrites or changes to the corporate computing
infrastructure.
 
                                      iii
<PAGE>
    GraphOn has established strategic alliances with technology leaders such as
IBM, Sun Microsystems and Corel, who have licensed GraphOn's technology. Using
GraphOn technology, Sun Microsystems and IBM provide their network computers
access to UNIX applications. Corel currently plans to use GraphOn's technology
to provide access to certain of its applications, such as WordPerfect-TM-, over
the Internet.
 
    GraphOn is headquartered in Campbell, California with offices in Bellevue,
Washington and Concord, New Hampshire.
 
THE SPECIAL MEETINGS
 
    UNITY STOCKHOLDERS
 
    There will be a special meeting of Unity stockholders at 800 Third Avenue,
30th Floor, New York, New York on May   , 1999, at 10:00 A.M., local time. At
this meeting, Unity stockholders will be asked to approve both the charter
amendment and the merger agreement.
 
    GRAPHON SHAREHOLDERS
 
    There will be a special meeting of GraphOn shareholders at 150 Harrison
Avenue, Campbell, California on May   , 1999, at 10:00 A.M., local time. At this
meeting, GraphOn shareholders will be asked to approve the merger agreement.
 
RECORD DATES FOR VOTING
 
    UNITY STOCKHOLDERS
 
    The close of business on May   , 1999 was the record date for determining
which holders of Unity common stock are entitled to vote at the Unity special
meeting. At the record date, there were 1,875,000 shares of Unity common stock
entitled to vote at the Unity special meeting.
 
    GRAPHON SHAREHOLDERS
 
    The close of business on May   , 1999 was the record date for determining
which holders of GraphOn common stock are entitled to vote at the GraphOn
special meeting. At the record date, there were 16,363,959 shares of GraphOn
common stock entitled to vote at the GraphOn special meeting.
 
VOTING
 
    UNITY STOCKHOLDERS
 
    You will have one vote for each share of Unity common stock that you owned
on the record date. An affirmative vote of a majority of the outstanding shares
of Unity common stock is required to approve each of the charter amendment and
the merger.
 
    Unity stockholders who acquired Unity common stock prior to Unity's initial
public offering in November 1996 have agreed to vote such common stock,
representing approximately 33.3% of the outstanding Unity common stock, in the
same manner as the majority of those Unity stockholders who acquired their Unity
shares either in such initial public offering or at any time thereafter.
 
    GRAPHON SHAREHOLDERS
 
    You will have one vote for each share of GraphOn common stock that you owned
on the record date. An affirmative vote of a majority of the outstanding shares
of GraphOn common stock is required to approve the merger.
 
                                       iv
<PAGE>
    As of the record date, GraphOn's directors, executive officers and their
affiliates hold an aggregate of approximately 28.6% of the outstanding shares of
GraphOn common stock.
 
THE CHARTER AMENDMENT
 
    The proposed charter amendment (i) deletes certain provisions of Unity's
certificate of incorporation which, if not so deleted, would require Unity's
liquidation and (ii) defers any such liquidation until the result of the vote on
the merger. If the charter amendment is not approved, Unity will be liquidated.
If the charter amendment is approved but you do not approve the merger, Unity
also will be liquidated. In either such event, you would each receive a cash
distribution of approximately $5.28 per share.
 
WHAT YOU WILL RECEIVE IN THE MERGER
 
    UNITY STOCKHOLDERS
 
    Upon completion of the merger, each share of Unity common stock that you own
will remain outstanding and will represent one share of the combined company,
which will be called "GraphOn Corporation."
 
    Unity's certificate of incorporation provides that should you object to the
merger, you may request Unity to convert your shares of Unity common stock into
cash. The amount of cash you would be entitled to receive, approximately $5.28
per share, will be payable to you only if you vote against the merger and the
merger is completed. The steps that you must take to receive such payment are
set out in full in "The Merger-Conversion Rights."
 
    GRAPHON SHAREHOLDERS
 
    Upon completion of the merger, each share of GraphOn common stock that you
own will be cancelled. In exchange, you will receive for each such share .5576
of a share of Unity common stock. You will not receive fractional shares of
Unity common stock. Instead, you will be paid cash equal to the market value on
the merger date of any fractional shares of Unity common stock you otherwise
would have received.
 
    The total number of shares of Unity common stock to be issued in the merger
will be approximately 9,124,543, which would represent approximately 83.0% of
the outstanding shares of Unity common stock immediately after the completion of
the merger. However, warrants and options exercisable for up to 4,598,901 shares
of Unity common stock also will be outstanding. Thus, on a fully-diluted basis,
current GraphOn shareholders would hold shares representing only 65.4% of
post-merger GraphOn.
 
BOARD RECOMMENDATIONS
 
    UNITY
 
    The Unity board believes that a merger with GraphOn is a better alternative
than the liquidation of Unity and the distribution of its net assets (estimated
at $5.28 per common share) to public stockholders of Unity.
 
    The Unity board also took note of the fact that GraphOn satisfied, or could
be expected to satisfy prior to or upon completion of the merger, nearly all of
Unity's acquisition criteria, discussed elsewhere in this joint proxy statement/
prospectus.
 
    The Unity board unanimously has determined that each of the proposed charter
amendment and the merger is in the best interests of Unity and its stockholders
and has approved both the amendment to Unity's certificate of incorporation
implementing the charter amendment and the merger agreement. The Unity board
unanimously recommends that Unity stockholders vote "FOR" both the charter
amendment and the merger.
 
                                       v
<PAGE>
    GRAPHON
 
    GraphOn's board of directors believes that the merger will enable GraphOn to
access at least $6,000,000, net of a fee of up to $575,000 payable to Spencer
Trask Securities, Inc. ("Spencer Trask") upon consummation of the merger, of
Unity's pre-merger cash assets (assuming no conversions of Unity common stock
into cash) without the costs and market uncertainties that would be inherent in
any attempt by GraphOn to conduct a public offering of like magnitude of its own
securities.
 
    The GraphOn board unanimously has determined that the merger is in the best
interests of GraphOn and its shareholders and recommends that the GraphOn
shareholders vote "FOR" the merger.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
    In considering the recommendation of the GraphOn board to approve the
merger, you should be aware that      of GraphOn's officers and directors will
become post-merger officers and directors of Unity.
 
CERTAIN POSSIBLE DISADVANTAGES OF THE MERGER
 
    In determining whether to vote for the merger, you should understand that
there are numerous risks and uncertainties relating to the present and proposed
operations of GraphOn which may directly impact its prospects following
completion of the merger, including:
 
    - GraphOn has a short operating history and may not be profitable in the
      future;
 
    - GraphOn's operating results are likely to fluctuate significantly and may
      fail to meet or exceed the expectations of securities analysts or
      investors;
 
    - GraphOn's failure to adequately protect its proprietary rights may
      adversely affect us;
 
    - GraphOn's business significantly benefits from the existence of certain
      strategic relationships and there can be no assurance that such
      relationships will continue into the future;
 
    - Because GraphOn's market is new and emerging, GraphOn cannot accurately
      predict its future growth rate or its ultimate size, and widespread
      acceptance of its product is uncertain;
 
    - GraphOn may need additional capital in the future and may not be able to
      secure adequate funds on terms acceptable to it;
 
    - GraphOn relies on indirect distribution channels for its products and
      needs to continue to develop reseller relationships;
 
    - GraphOn's future success will depend in part upon its ability to enhance
      its existing products and to develop and introduce, on a timely basis, new
      products and features that meet changing customer requirements and
      emerging industry standards;
 
    - GraphOn faces certain risks related to its 1991 bankruptcy;
 
    - GraphOn's failure to manage expanding operations could adversely affect
      it;
 
    - The market in which GraphOn participates is highly competitive and has
      more-established competitors;
 
    - GraphOn's failure to be year 2000 compliant would negatively impact its
      business; and
 
    - The trading market for the post-merger common stock may not be active.
 
    There can be no assurance that Unity common stock, after the merger, will
trade at price levels in excess of the estimated $5.28 per share payable to
Unity stockholders upon liquidation of Unity if the merger were not effected.
 
                                       vi
<PAGE>
DIRECTORS AND MANAGEMENT OF UNITY FOLLOWING THE MERGER
 
    In accordance with the merger agreement, three of the four current members
of the Unity board will resign immediately prior to the effective time of the
merger (the "effective time"). Immediately following the merger, one of the
current directors of Unity and the   current directors of GraphOn will become
the sole members of the Unity board.
 
    Walter Keller, who presently is President of GraphOn, will be President of
Unity after the merger is completed. Additionally, all of GraphOn's other
officers will continue in a like capacity with Unity after the merger is
completed.
 
ASSUMPTION OF GRAPHON STOCK OPTION/STOCK ISSUANCE PLAN
 
    As part of the merger, Unity will assume the GraphOn 1998 Stock Option/Stock
Issuance Plan and all outstanding options under that plan. As a result, the
1,236,132 shares of GraphOn common stock currently reserved for issuance under
the plan will be converted into a reserve of 689,267 shares of Unity common
stock available for issuance after the merger, and the outstanding options for
approximately 353,500 shares of GraphOn common stock (as of the record date)
will be converted into options to purchase approximately 197,111 shares of the
Unity common stock reserve at exercise prices ranging from $0.13 to $1.52 per
share.
 
CONDITIONS TO THE MERGER
 
    The merger will not be completed unless a number of conditions are satisfied
or waived. These include, but are not limited to:
 
    - approval of the proposed charter amendment and the merger by the
      shareholders of Unity;
 
    - approval of the merger by the stockholders of GraphOn;
 
    - the absence of any injunction prohibiting the merger;
 
    - the absence of any material adverse change with respect to GraphOn; and
 
    - the absence of any material adverse change with respect to Unity.
 
TERMINATION OF THE MERGER AGREEMENT
 
    Unity and GraphOn can mutually agree to terminate the merger agreement at
any time.
 
    Either of Unity or GraphOn can terminate the merger agreement if:
 
    - the merger is not completed by June 30, 1999; or
 
    - a governmental authority, such as a court, permanently prohibits the
      merger or refuses to grant an approval that is required.
 
    Unity can terminate the merger agreement if there is a material breach by
GraphOn of its representations or warranties in the merger agreement or GraphOn
fails to comply with or satisfy any material condition.
 
    GraphOn can terminate the merger agreement if there is a material breach by
Unity of its representations or warranties in the merger agreement or Unity
fails to comply with or satisfy any material condition.
 
    Unity is required to terminate the merger prior to the Unity special meeting
if Unity stockholders, owning 20% or more of Unity's outstanding common stock
prior to the merger, request conversion of their shares into cash.
 
                                      vii
<PAGE>
REGULATORY APPROVAL
 
    No submissions to the Antitrust Division of the Department of Justice and
the Federal Trade Commission are required of either of Unity or GraphOn pursuant
to the Hart-Scott-Rodino Act.
 
APPRAISAL RIGHTS
 
    UNITY STOCKHOLDERS
 
    You have the right to demand appraisal of your shares and to receive an
amount that the Delaware Court of Chancery decides is the "fair value" of your
Unity shares. This amount may be more or less than the cash conversion value of
your shares. This right is known as an "appraisal right".
 
    If you wish to exercise your appraisal right, you must not vote in favor of
the merger and must take certain steps, which are set out in full in Exhibit C
to this joint proxy statement/prospectus. If you exercise your appraisal right,
you will be obliged to bear your own expenses, including attorneys' fees.
 
    GRAPHON SHAREHOLDERS
 
    You have the right to demand appraisal of your shares and to receive an
amount that the California Superior Court decides is the "fair value" of your
GraphOn shares. This amount may be more or less than the value of the Unity
shares you would receive pursuant to the merger agreement. This right is known
as your "dissenter's right".
 
    If you wish to exercise your dissenter's right, you must not vote in favor
of the merger and must take certain steps which are set out in full in Exhibit D
to this Joint Proxy Statement/Prospectus. If you exercise your dissenter's
right, you will be obliged to bear your own expenses, including attorneys' fees,
if a court determines that you did not act in good faith in demanding payment of
the fair value of your shares
 
TAX CONSEQUENCES OF THE MERGER
 
    The merger has been structured so that neither Unity nor GraphOn nor our
shareholders will recognize any gain or loss for Federal income tax purposes in
the merger, except for tax payable because of cash received instead of
fractional shares by GraphOn shareholders. The merger has been conditioned on
receipt of legal opinions that such is the case.
 
ACCOUNTING TREATMENT
 
    Unity and GraphOn expect that the merger will be accounted for as a capital
transaction equivalent to the issuance of stock by GraphOn for Unity's net
monetary assets of approximately $6,000,000, net of a fee of up to $575,000
payable to Spencer Trask upon consummation of the merger. See "Certain
Relationships and Transactions."
 
EXCHANGE OF STOCK CERTIFICATES
 
    UNITY STOCKHOLDERS
 
    After the merger is completed, you may but will not be required to exchange
your current Unity stock certificates for new Unity stock certificates.
 
    GRAPHON SHAREHOLDERS
 
    After the merger is completed, you will be sent written instructions for
exchanging your GraphOn stock certificates for new Unity stock certificates.
 
                                      viii
<PAGE>
                    SUMMARY HISTORICAL FINANCIAL INFORMATION
 
    The following tables show financial results actually achieved by each of
GraphOn and Unity (the "historical" figures).
 
    GraphOn's historical figures as of and for the years ended December 31,
1998, 1997 and 1996 have been derived from GraphOn financial statements audited
by BDO Seidman, LLP and Unity's historical figures as of and for the fiscal
years ended July 31, 1998 and 1997 and the period from May 30, 1996 (inception)
to July 31, 1996, have been derived from Unity financial statements audited by
Arthur Andersen LLP.
 
    Unity's historical figures as of and for the six months ended January 31,
1999 and 1998 are unaudited, but Unity believes that its figures reflect all
normal recurring adjustments necessary for a fair presentation of its financial
position and results of operations for those periods. You should not assume that
results for a portion of the fiscal year ending July 31, 1999 will be repeated
in later periods.
 
GRAPHON
 
<TABLE>
<CAPTION>
                                                  FOR THE YEAR ENDED
                                                     DECEMBER 31,
                                              ---------------------------
                                                  1998           1997       1996(1)     1995(1)      1994(1)
                                              -------------  ------------  ----------  ----------  ------------
<S>                                           <C>            <C>           <C>         <C>         <C>
                                                                                             (UNAUDITED)
STATEMENT OF OPERATIONS DATA:
Revenues....................................  $   2,124,200  $  1,926,100  $  594,800  $  588,117  $  1,096,910
Costs of Revenues...........................        344,200       463,300     335,600     213,502       349,693
                                              -------------  ------------  ----------  ----------  ------------
Gross Profit................................      1,780,000     1,462,800     259,200     374,615       747,217
Operating Expenses:
  Selling and marketing.....................      1,440,300       827,300     192,700          --            --
  General and administrative................      1,208,900       324,700     218,900     388,637       646,656
  Research and development..................        840,200       190,500      41,700      58,979        67,150
                                              -------------  ------------  ----------  ----------  ------------
      Total Operating Expenses..............      3,489,400     1,342,500     453,300     447,616       713,806
                                              -------------  ------------  ----------  ----------  ------------
(Loss) Income from Operations...............     (1,709,400)      120,300    (194,100)    (73,001)       33,411
Other Income (Expense):
  Interest and other income.................          9,800         7,200       6,400          --            --
  Interest expense..........................        (46,900)       (2,100)         --          --            --
  Other expense.............................        (16,500)           --          --          --            --
                                              -------------  ------------  ----------  ----------  ------------
(Loss) Income before Provision for Income
  Taxes.....................................     (1,763,000)      125,400    (187,700)    (73,001)       33,411
Provision for Income Taxes..................            800           900         800          --        15,369
                                              -------------  ------------  ----------  ----------  ------------
Net (Loss) Income...........................  $  (1,763,800) $    124,500  $ (188,500) $  (73,001) $     18,042
                                              -------------  ------------  ----------  ----------  ------------
                                              -------------  ------------  ----------  ----------  ------------
Pro forma (Loss) Income per share (2).......  $       (0.26) $       0.02  $    (0.03) $    (0.01) $         --
                                              -------------  ------------  ----------  ----------  ------------
                                              -------------  ------------  ----------  ----------  ------------
Weighted average common shares..............      6,762,667     6,000,000   6,000,000   6,000,000     6,000,000
                                              -------------  ------------  ----------  ----------  ------------
                                              -------------  ------------  ----------  ----------  ------------
</TABLE>
 
                                       ix
<PAGE>
 
<TABLE>
<CAPTION>
                                                                             DECEMBER 31, 1998  DECEMBER 31, 1997
                                                                             -----------------  -----------------
<S>                                                                          <C>                <C>
BALANCE SHEET DATA:
Total Assets...............................................................    $   6,544,500       $   733,300
Total Liabilities..........................................................        1,202,200           615,100
Working Capital............................................................        1,193,000            22,700
Shareholders' Equity.......................................................        5,342,300           118,200
</TABLE>
 
- ------------------------
 
(1) During the years ended December 31, 1996, 1995 and 1994, GraphOn was engaged
    in the business of manufacturing, marketing and selling computer terminal
    hardware in an industry significantly different from that in which it
    presently does business. See "Management's Discussion and Analysis of
    Financial Condition and Results of Operations of GraphOn--Overview."
 
(2) Pro forma (Loss) Income per share is reflected as if GraphOn had been a
    public company since inception.
 
UNITY
 
<TABLE>
<CAPTION>
                                           SIX MONTHS ENDED
                                             JANUARY 31,                                          PERIOD FROM
                                      --------------------------     YEAR ENDED JULY 31,         MAY 30, 1996
                                      (UNAUDITED)   (UNAUDITED)   --------------------------   (INCEPTION)(1) TO
                                          1999          1998          1998        1997(1)        JULY 31, 1996
                                      ------------  ------------  ------------  ------------  -------------------
<S>                                   <C>           <C>           <C>           <C>           <C>
STATEMENT OF OPERATIONS DATA:
Revenues............................  $         --  $         --  $         --  $         --      $        --
                                      ------------  ------------  ------------  ------------         --------
                                      ------------  ------------  ------------  ------------         --------
Net (loss) income...................  $   (239,035) $     30,526  $   (315,991) $      6,637      $   (15,000)
                                      ------------  ------------  ------------  ------------         --------
                                      ------------  ------------  ------------  ------------         --------
(Loss) income per common share
  (basic and diluted)...............  $      (0.13) $       0.02  $      (0.17) $         --      $     (0.02)
                                      ------------  ------------  ------------  ------------         --------
                                      ------------  ------------  ------------  ------------         --------
Weighted average common shares......     1,875,000     1,875,000     1,875,000     1,515,000          625,000
                                      ------------  ------------  ------------  ------------         --------
                                      ------------  ------------  ------------  ------------         --------
</TABLE>
 
<TABLE>
<CAPTION>
                                                         JANUARY 31,      JULY 31,      JULY 31,      JULY 31,
                                                            1999            1998          1997          1996
                                                       ---------------  ------------  ------------  ------------
<S>                                                    <C>              <C>           <C>           <C>
                                                         (UNAUDITED)
BALANCE SHEET DATA:
Total Assets.........................................   $   6,605,885    $6,489,903    $6,465,021    $  250,563
Total Liabilities....................................   $     767,099    $  412,082    $   71,209    $  265,500
Stockholders' equity(2)..............................   $   4,518,461    $4,780,520    $5,154,432    $  (14,937)
</TABLE>
 
- ------------------------
 
(1) Unity was inactive during the period May 30, 1996 (inception) through
    November 19, 1996.
 
(2) Does not include shares subject to possible conversion at conversion value
    at January 31, 1999 and July 31, 1998.
 
                                       x
<PAGE>
                    SUMMARY PRO FORMA FINANCIAL INFORMATION
 
    The following tables show results as if the companies had been combined for
the periods shown (the "pro forma combined" figures) under the following
circumstances: (1) that no public Unity stockholders exercised their right to
have their shares converted into cash upon consummation of the merger and (2)
that 19.99% of interest in Unity common stock held by public Unity stockholders
elected to have their shares converted into cash upon consummation of the merger
at the conversion value of $5.28 per share, based on the amount held in the
Unity trust account, inclusive of interest income to date thereon, at January
31, 1999, with an adjustment to the pro forma statement of operations to reflect
a corresponding reduction of interest income for the period.
 
    The pro forma statement of operations presented below assumes the merger
occurred on the first day of the fiscal years presented. The pro forma balance
sheet presented below assumes the merger occurred as of the balance sheet date
presented. You should not assume that GraphOn and Unity would have achieved the
combined pro forma results if they had actually been combined during the periods
shown.
 
PRO FORMA COMBINED STATEMENT OF OPERATIONS DATA:
 
<TABLE>
<CAPTION>
                                      (ASSUMING NO CASH CONVERSION)          (ASSUMING 19.99% CASH CONVERSION)
                                 ---------------------------------------  ---------------------------------------
<S>                              <C>                                      <C>
                                 YEARS ENDED DECEMBER 31, 1998 (GRAPHON)  YEARS ENDED DECEMBER 31, 1998 (GRAPHON)
                                      AND JANUARY 31, 1999 (UNITY)             AND JANUARY 31, 1999 (UNITY)
                                 ---------------------------------------  ---------------------------------------
Total revenues.................               $   2,124,200                            $   2,124,200
Operating expenses.............                   4,294,439                                4,294,439
Operating loss.................                  (2,170,239)                              (2,170,239)
Other expense..................                    (138,922)                                 (99,289)
Net loss.......................                  (2,026,724)                              (2,066,357)
Net loss per weighted average
  common share (basic and
  diluted).....................               $       (0.18)                           $       (0.19)
Weighted average common shares
  outstanding(1)...............                  10,999,543                               10,749,668
</TABLE>
 
- ------------------------
 
(1) Gives effect to the issuance of approximately 9,124,543 shares of Unity
    Common Stock to the GraphOn shareholders in connection with the merger.
 
PRO FORMA COMBINED BALANCE SHEET DATA:
 
<TABLE>
<CAPTION>
                                          (ASSUMING NO CASH CONVERSION)        (ASSUMING 19.99% CASH CONVERSION)
                                      -------------------------------------  -------------------------------------
<S>                                   <C>                                    <C>
                                      AS OF DECEMBER 31, 1998 (GRAPHON) AND  AS OF DECEMBER 31, 1998 (GRAPHON) AND
                                            JANUARY 31, 1999 (UNITY)               JANUARY 31, 1999 (UNITY)
                                      -------------------------------------  -------------------------------------
Working Capital.....................             $     7,560,457                        $     6,372,165
Current Assets......................                   9,054,756                              7,866,464
Total Assets........................                  13,204,056                             12,015,764
Current Liabilities.................                   1,494,299                              1,494,299
Total Liabilities...................                   1,494,299                              1,494,299
Stockholders' equity................                  11,709,757                             10,521,465
</TABLE>
 
                                       xi
<PAGE>
                       COMPARATIVE PER SHARE INFORMATION
 
    The following table sets forth unaudited data concerning the net loss,
dividends and book value per share for GraphOn and Unity on a pro forma basis
after giving effect to the merger.
 
<TABLE>
<CAPTION>
                                   (ASSUMING NO CONVERSION)                     (ASSUMING 19.99% CONVERSION)
                         ---------------------------------------------  ---------------------------------------------
<S>                      <C>                                            <C>
                          YEARS ENDED DECEMBER 31, 1998 (GRAPHON) AND    YEARS ENDED DECEMBER 31, 1998 (GRAPHON) AND
                                   JANUARY 31, 1999 (UNITY)                       JANUARY 31, 1999 (UNITY)
                         ---------------------------------------------  ---------------------------------------------
Net loss per share
  (basic and
  diluted).............                    $   (0.18)                                     $   (0.19)
Dividends declared per
  share................                           --                                             --
Book value per share at
  end of period........                    $    1.06                                      $    0.97
</TABLE>
 
    The following tables set forth data concerning the historical net (loss)
income, dividends and book value per share for GraphOn and Unity:
 
GRAPHON:
 
<TABLE>
<CAPTION>
                                                                                  FOR THE YEAR ENDED DECEMBER 31,
                                                                      -------------------------------------------------------
<S>                                                                   <C>        <C>        <C>        <C>        <C>
                                                                        1998       1997      1996(1)    1995(1)     1994(2)
                                                                      ---------  ---------  ---------  ---------  -----------
HISTORICAL PER SHARE DATA (1):
Net (loss) income per share (basic and diluted).....................  $   (0.26) $    0.02  $   (0.03) $   (0.01)  $      --
Dividends declared per share........................................         --         --         --         --          --
Book value per share at end of period(2)............................  $    0.40  $    0.02  $      --  $    0.03   $    0.04
</TABLE>
 
- ------------------------
 
(1) Per share information is based upon the respective shares outstanding at the
    end of the period, which have been obtained from historical data previously
    presented.
 
(2) Per share information for 1994 is unaudited.
 
<TABLE>
<CAPTION>
                                                                                  FOR THE YEAR ENDED DECEMBER 31,
                                                                      -------------------------------------------------------
<S>                                                                   <C>        <C>        <C>        <C>        <C>
                                                                        1998       1997      1996(1)    1995(1)     1994(2)
                                                                      ---------  ---------  ---------  ---------  -----------
EQUIVALENT PER SHARE DATA (1):
Net income per share (basic and diluted)............................  $   (0.47) $    0.04  $   (0.05) $   (0.02)  $   (0.01)
Dividends declared per share........................................         --         --         --         --          --
Book value per share at end of period...............................  $    0.72  $    0.04  $      --  $    0.05   $    0.07
</TABLE>
 
- ------------------------
 
(1) Per share information is based upon the application of the exchange ratio to
    the number of shares actually outstanding for each period.
 
(2) Per share information for 1994 is unaudited.
 
                                      xii
<PAGE>
UNITY:
 
<TABLE>
<CAPTION>
                                                                 FOR THE SIX MONTHS                            PERIOD FROM
                                                                                            YEAR ENDED        MAY 30, 1996
                                                                 ENDED JANUARY 31,           JULY 31,          (INCEPTION)
                                                                --------------------  ----------------------   TO JULY 31,
                                                                  1999       1998       1998       1997(1)       1996(1)
                                                                ---------  ---------  ---------  -----------  -------------
<S>                                                             <C>        <C>        <C>        <C>          <C>
HISTORICAL PER SHARE DATA:
Net (loss) income per share...................................  $   (0.13) $    0.02  $   (0.17)         --     $   (0.02)
Dividends declared per share..................................         --         --         --          --            --
Book value per share at end of period.........................  $    3.11  $    3.43  $    3.24   $    3.41     $   (0.02)
</TABLE>
 
- ------------------------
 
(1) Unity was inactive during the period May 30, 1996 (inception) through
    November 19, 1996.
 
                                      xiii
<PAGE>
                                  RISK FACTORS
 
    In addition to the other information contained in this joint proxy
statement/prospectus, shareholders of each of Unity and GraphOn should carefully
review the following factors in deciding whether to vote in favor of approval of
the merger and the transactions contemplated thereby, and whether to execute and
return a proxy card. You may lose all or part of your investment. The risks and
uncertainties described below are not the only ones facing our company.
 
RISKS RELATING TO GRAPHON
 
WE RECENTLY CHANGED OUR CORPORATE STRATEGY AND HAVE A LIMITED HISTORY OPERATING
  UNDER OUR CURRENT BUSINESS MODEL
 
    Although GraphOn was founded in 1982, we have a relatively brief operating
history as a provider of server-based software. We changed our strategic focus
in early 1996 from manufacturing and selling computer terminal hardware to
developing server-based software. This change in strategic focus required us to
make changes to our business processes and to make a number of significant
personnel changes, including changes and additions to our engineering and
management teams. As a result of our relatively brief operating history as a
provider of server-based software, you must consider the risks and difficulties
frequently encountered by early stage companies in new and rapidly evolving
markets. These risks include our:
 
    - substantial dependence on products with only limited market acceptance;
 
    - need to expand our sales and support organizations;
 
    - competition with established and emerging companies;
 
    - need to manage changing operations;
 
    - reliance upon strategic relationships; and
 
    - dependence upon key personnel.
 
    We also depend to a significant degree on the continued growing use of the
Internet for commerce and communication. We cannot be certain that our business
strategy will be successful or that we will successfully address these risks.
 
GRAPHON HAS A HISTORY OF OPERATING LOSSES AND EXPECTS THESE LOSSES TO CONTINUE
  AND INCREASE, AT LEAST FOR THE NEAR FUTURE
 
    GraphOn has experienced significant losses since it began operations. It
expects to continue to incur significant losses for the foreseeable future.
GraphOn incurred net losses of approximately $1,763,800 for the year ended
December 31, 1998. GraphOn expects its expenses to increase as it expands its
business but cannot assure you that its revenues will increase as a result of
increased spending. If revenues grow more slowly than anticipated, or if
operating expenses exceed expectations, GraphOn may not become profitable. Even
if it becomes profitable, it may be unable to sustain profitability.
 
OUR OPERATING RESULTS IN ONE OR MORE FUTURE PERIODS ARE LIKELY TO FLUCTUATE
  SIGNIFICANTLY AND MAY FAIL TO MEET OR EXCEED THE EXPECTATIONS OF SECURITIES
  ANALYSTS OR INVESTORS
 
    Our operating results are likely to fluctuate significantly in the future on
a quarterly and an annual basis due to a number of factors, many of which are
outside our control. Factors that could cause our revenues to fluctuate include
the following:
 
    - the degree of success of our recently introduced products;
 
    - variations in the timing of and shipments of our products;
 
                                      xiv
<PAGE>
    - variations in the size of orders by our customers;
 
    - increased competition;
 
    - the proportion of overall revenues derived from different sales channels
      such as distributors, OEMs and others;
 
    - changes in our pricing policies or those of our competitors;
 
    - the financial stability of major customers;
 
    - new product introductions or enhancements by us or by competitors;
 
    - delays in the introduction of products or product enhancements by us or by
      competitors;
 
    - the degree of success of new products;
 
    - any changes in operating expenses; and
 
    - general economic conditions and economic conditions specific to the
      software industry.
 
    In addition, our royalty and license revenues are impacted by fluctuations
in OEM licensing activity from quarter to quarter which may involve one-time
royalty payments and license fees. Our expense levels are based, in part, on
expected future orders and sales. Therefore, if orders and sales levels are
below expectations, our operating results are likely to be materially adversely
affected. Additionally, because a significant portion of our expenses are fixed,
a reduction in sales levels may disproportionately affect our net income. Also,
we may reduce prices or increase spending in response to competition or to
pursue new market opportunities. Because of these factors, our operating results
in one or more future periods may fail to meet or exceed the expectations of
securities analysts or investors. In that event, the trading price of our common
stock would likely decline.
 
OUR FAILURE TO ADEQUATELY PROTECT OUR PROPRIETARY RIGHTS MAY ADVERSELY AFFECT US
 
    Our commercial success is dependent, in large part, upon our ability to
protect our proprietary rights. We rely on a combination of patent, copyright
and trademark laws, and on trade secrets and confidentiality provisions and
other contractual provisions to protect our proprietary rights. These measures
afford only limited protection. We cannot assure you that measures we have taken
will be adequate to protect us from misappropriation or infringement of our
intellectual property.
 
    We license essential components of our core technology from three different
parties to whom we pay royalties, although we hold an option (exercisable in the
year 2001) to purchase the technology under such licenses. These licenses may be
terminated upon material breach of the agreements, and if they are terminated
our business will be harmed.
 
    Despite our efforts to protect proprietary rights, it may be possible for
unauthorized third parties to copy aspects of our products or obtain and use
information that we regard as proprietary. See "Business of GraphOn-Legal
Proceedings." In addition, the laws of some foreign countries do not protect our
intellectual property rights as fully as do the laws of the United States.
Furthermore, we cannot assure you that the existence of any proprietary rights
will prevent the development of competitive products. The infringement upon or
loss of any proprietary rights could have a material adverse effect on our
business.
 
WE FACE RISKS OF CLAIMS FROM THIRD PARTIES FOR INTELLECTUAL PROPERTY
  INFRINGEMENT THAT COULD ADVERSELY AFFECT OUR BUSINESS
 
    We could be faced with infringement claims. At any time, we may receive
communications from third parties asserting that certain features or content of
our products may infringe upon their intellectual property rights. Any such
claims, with or without merit, and regardless of their outcome, may be time
consuming and costly to defend. We may not have sufficient resources to defend
such claims and they
 
                                       xv
<PAGE>
could divert management's attention and resources, cause product shipment delays
or require us to enter into new royalty or licensing agreements. New royalty or
licensing agreements may not be available on beneficial terms, and may not be
available at all. If a successful infringement claim is brought against us and
we fail to license the infringed or similar technology, our business could be
materially adversely affected.
 
WE DEPEND ON STRATEGIC RELATIONSHIPS
 
    Our business and strategy relies to a significant extent on our strategic
relationships with other companies. These relationships may not be successful
because we may not be able to continue to maintain, develop or replace them in
the event any of these relationships are terminated. In addition, any failure to
renew or extend any licenses between us and any third party may adversely affect
our business.
 
BECAUSE OUR MARKET IS NEW AND EMERGING, WE CANNOT ACCURATELY PREDICT ITS FUTURE
  GROWTH RATE OR ITS ULTIMATE SIZE, AND WIDESPREAD ACCEPTANCE OF OUR PRODUCT IS
  UNCERTAIN
 
    The market for server-based software (i.e., software that enables programs
to be accessed and run with minimal memory resident on a desktop computer or
remote user device) still is emerging, and we cannot assure you that our
products will receive broad-based market acceptance or that this market will
continue to grow. Additionally, we cannot accurately predict our market's future
growth rate or its ultimate size. Even if server-based software products achieve
market acceptance and the market for these products grows, we cannot assure you
that we will have a significant share of that market. If we fail to achieve a
significant share of the server-based software market or if such market does not
grow as anticipated, our business, results of operations and financial condition
may be adversely affected.
 
WE MAY NEED ADDITIONAL CAPITAL IN THE FUTURE AND MAY NOT BE ABLE TO SECURE
  ADEQUATE FUNDS ON TERMS ACCEPTABLE TO US
 
    In the future, we may need to raise additional funds to meet our
obligations, cover operating expenses, pursue business strategies, respond to
financial, technological or marketing hurdles or take advantage of new
opportunities. However, we cannot assure you that any additional funds required
will be available at the time or times needed, or available on terms acceptable
to us. If adequate funds are not available, or are not available on acceptable
terms, we may not be able to meet our obligations, pursue business strategies,
take advantage of market opportunities, develop new products or otherwise
respond to competitive pressures. Such inability could have a material adverse
effect on our business, financial condition and results of operations.
 
WE RELY ON INDIRECT DISTRIBUTION CHANNELS FOR OUR PRODUCTS AND NEED TO CONTINUE
  TO DEVELOP RESELLER RELATIONSHIPS
 
    Our products primarily are sold through several distribution channels. An
integral part of our strategy is to strengthen our relationships with resellers
such as value-added resellers, distributors, OEMs, systems integrators and other
vendors to encourage these parties to recommend or distribute our products and
to add resellers both domestically and internationally. We currently invest in
and intend to continue to invest significant resources to expand our sales and
marketing capabilities. We cannot assure you that we will be able to attract
and/or retain resellers to market our products effectively. Our inability to
attract resellers or the loss of any current reseller relationships could have a
material adverse effect on our business, results of operations and financial
condition. Additionally, we cannot assure you that resellers will devote enough
resources to provide effective sales and marketing support to our products.
 
                                      xvi
<PAGE>
OUR FUTURE SUCCESS WILL DEPEND IN PART UPON OUR ABILITY TO ENHANCE OUR EXISTING
  PRODUCTS AND TO DEVELOP AND INTRODUCE, ON A TIMELY BASIS, NEW PRODUCTS AND
  FEATURES THAT MEET CHANGING CUSTOMER REQUIREMENTS AND EMERGING INDUSTRY
  STANDARDS
 
    The server-based software market still is emerging and characterized by
rapid technological change, evolving industry standards, changes in end-user
requirements and frequent new product introductions and enhancements. The
introduction of new technological products and the emergence of new industry
standards could render our products obsolete and unmarketable. From time to
time, we may develop new products, capabilities or technologies that have the
potential to replace or shorten the life cycle of our existing products.
Additionally, we cannot assure you that announcements of currently planned or
newly introduced product offerings will not cause customers to defer purchasing
our existing products.
 
    In addition, we cannot assure you that we will be able to develop products
that keep pace with new technology, or that new technology will not obviate the
need for our products. If any new or enhanced technology gains widespread
acceptance and we fail to develop and provide compatible products on a timely
basis, our competitive position, business, results of operations and financial
condition could be adversely affected. Our future success depends in large part
upon:
 
    - our ability to enhance our current products;
 
    - our ability to develop and successfully introduce new products that keep
      pace with technological developments; and
 
    - our ability to respond to evolving end-user requirements
 
    We cannot assure you that we will successfully develop and market new
products or product enhancements on a timely basis, or that new products or
product enhancements we develop will achieve market acceptance.
 
WE FILED FOR BANKRUPTCY ON NOVEMBER 15, 1991
 
    On November 15, 1991, we filed for reorganization under Chapter 11 of the
United States Bankruptcy Code and, later, submitted a Debtor's Proposed Amended
Plan of Reorganization (the "Reorganization Plan"). The Reorganization Plan was
confirmed by order of the bankruptcy court on July 11, 1994 and the court
established a plan of payment for the benefit of certain of our creditors. Under
the bankruptcy court order, we established a disbursement account into which 50%
of the ongoing terminal royalties we receive from certain OEMs (as more fully
described in "Business of GraphOn-Corporate History") must be deposited to pay
certain named creditors. For all but one unsecured creditor, payments from the
disbursement account were ordered to continue up to the earlier of: (i) the
limit of our liability to each unsecured creditor or (ii) through the year 2000.
However, the largest unsecured creditor's claim, which currently totals
approximately $964,000, must be paid from available funds, if any, in the
disbursement account until such amount is fully paid. Our total remaining
liability under the bankruptcy, as of March 26, 1999, is limited to the lesser
of (i) approximately $2,230,000 or (ii) 50% of future ongoing terminal royalties
we receive from certain OEMs. To date, only royalties received pursuant to
certain license agreements existing at the time of the bankruptcy have been
deposited into the disbursement account, and we have not deposited into such
account or paid creditors out of royalties received or currently received on our
subsequently developed and licensed server-based technology. We believe that our
royalty payment obligations under the bankruptcy court order relate only to
licenses in place as of July 11, 1994, and no payments to creditors have been
made since November 14, 1997. We cannot assure you that a court will not
interpret our obligation to include payments to the disbursement account from
royalties earned from subsequent licenses of the server-based technology or
licenses that we secure in the future, or that our current technology will not
be deemed derivative of our technology existing at July 11, 1994. Consequently,
we cannot assure you that we will not be required to repay creditors referenced
in the bankruptcy proceedings the full amount of our liability (approximately
$2,230,000). In addition, we cannot guarantee
 
                                      xvii
<PAGE>
you that a creditor will not assert a claim for payment out of the royalties
from subsequent licenses of the server-based technology. Such claims could be
costly and time-consuming for us. If any of these events takes place, it could
have a material adverse effect on our business, financial condition and results
of operations. See Note 6 to the GraphOn Financial Statements.
 
OUR FAILURE TO MANAGE EXPANDING OPERATIONS COULD ADVERSELY AFFECT US
 
    To exploit the emerging server-based software market, we must rapidly
execute our business strategy and further develop products while managing our
anticipated growth in operations. To manage our growth, we must:
 
    - continue to implement and improve our operational, financial and
      management information systems;
 
    - hire and train additional qualified personnel;
 
    - continue to expand and upgrade core technologies; and
 
    - effectively manage multiple relationships with various licensees,
      consultants, strategic and technological partners and other third parties.
 
    We cannot assure you that our systems, procedures, personnel or controls
will be adequate to support our operations or that management will be able to
execute strategies rapidly enough to exploit the market for our products and
services. Our failure to manage growth effectively or execute strategies rapidly
could have a material adverse effect on our business, financial condition and
results of operations.
 
COMPETITION FOR KEY MANAGEMENT AND OTHER PERSONNEL IN OUR INDUSTRY IS INTENSE,
  AND WE MAY NOT BE SUCCESSFUL IN ATTRACTING AND RETAINING THESE PERSONNEL
 
    Our success and business strategy is dependent in large part on our ability
to attract and retain key management and other personnel. Such individuals are
in high demand and often have competing employment offers. In particular, our
success depends on our ability to retain the services of Mr. Walter Keller, our
President and Chairman of the Board and Ms. Robin Ford, our Executive Vice
President of Marketing and Sales. We have entered into employment agreements
with these individuals that each contain non-competition and confidentiality
covenants. We currently anticipate the need to attract additional sales,
marketing, financial and software engineer personnel in the near future.
Competition for such personnel in the computer software and services industry is
intense, therefore, we cannot assure you we will be able to attract and retain
such personnel. The loss of the services of one or more members of our
management group or the inability to hire additional personnel as needed may
have a material adverse effect on our business.
 
WE ARE SUBJECT TO RISKS ASSOCIATED WITH INTERNATIONAL MARKETS
 
    As part of our long term strategy we intend to address the global needs of
our customers and expand our business to commit resources to international
market expansion. In order to execute this strategy, we will need to hire and
train additional personnel and recruit additional international resellers to
successfully expand our international sales. We cannot assure you that we will
be able to increase or maintain international sales of our products or that
international reseller channels will be able to adequately service and support
our products. Our international operations will be subject to a number of risks
including:
 
    - difficulties in staffing and managing foreign operations;
 
    - variability of foreign economic conditions and changing restrictions
      imposed by United States export laws;
 
    - unexpected changes in regulatory requirements;
 
                                     xviii
<PAGE>
    - tariffs and other trade barriers;
 
    - lack of acceptance of products in foreign countries; and
 
    - the burdens of complying with a wide variety of foreign laws.
 
    We cannot assure you that such factors will not have a material adverse
effect on our future international sales and, consequently, our business,
results of operations and financial condition.
 
THE MARKET IN WHICH WE PARTICIPATE IS HIGHLY COMPETITIVE AND HAS MORE
  ESTABLISHED COMPETITORS
 
    The market we participate in is intensely competitive, rapidly evolving and
subject to technological changes. We expect competition to increase as other
companies introduce additional competitive products. In order to compete
effectively, we must continually develop and market new and enhanced products
and market those products at competitive prices. As markets for our products
continue to develop, additional companies, including companies in the computer
hardware, software and networking industries with significant market presence,
may enter the markets in which we compete and further intensify competition. A
number of our current and potential competitors have longer operating histories,
greater name recognition and significantly greater financial, sales, technical,
marketing and other resources than we do. We cannot assure you that our
competitors will not develop and market competitive products that will offer
superior price or performance features or that new competitors will not enter
our markets and offer such products. We believe that we will need to invest
increasing financial resources in research and development to remain competitive
in the future. We cannot assure you that we will be able to establish and
maintain a significant market position in the face of our competition and our
failure to do so would adversely affect our business.
 
WE ARE SUBJECT TO RISK OF UNDETECTED ERRORS
 
    Our complex software products may contain undetected errors or failures when
first introduced or as new versions are released. We cannot assure you that
errors will not be found in our products after commencement of commercial
shipments. In addition, third-party products that our products depend upon,
including current and future versions of operating systems and application
programs provided by companies such as Sun Microsystems, IBM and Microsoft, may
contain defects which could reduce the performance of our products or render
them useless. Because we do not develop our own application programs and depend
upon third party applications, errors in any application utilized by our
customers could adversely impact the marketability of our products. Similarly,
we cannot assure you that errors or defects in our products will not be
discovered, causing delays in product introductions and shipments or requiring
design modifications that could adversely affect our competitive position,
business, results of operations and financial condition.
 
GRAPHON IS CONTROLLED BY MANAGEMENT
 
    Following the consummation of the merger, our executive officers, directors
and their affiliates will own or have voting control over approximately 28.6% of
the outstanding shares of common stock. As a result, if they act as a group, the
executive officers and directors may exercise significant influence over such
matters as amendments to our charter and fundamental corporate transactions such
as mergers, asset sales and the sale of post-merger GraphOn. In addition, they
will be able to influence the direction of our business and the election of
members to the board of directors.
 
WE HAVE AGREED TO CONTRACTUAL PROVISIONS THAT COULD DISCOURAGE ACQUISITION BIDS
 
    A number of our agreements contain express provisions that do not allow us
to assign them without written consent. These provisions could deter third
parties from making bids to acquire us. These provisions could also limit the
price future investors are willing to pay for shares of our common stock.
 
                                      xix
<PAGE>
OUR FAILURE TO BE YEAR 2000 COMPLIANT WOULD NEGATIVELY IMPACT OUR BUSINESS
 
    Many currently installed computer systems and software products are coded to
accept only two digit entries in the date code field and therefore are not
designed to handle any dates beyond the year 1999. These date code fields will
need to accept four digit entries to distinguish 21st century dates from 20th
century dates. As a result, in a relatively short time, computer systems and/or
software used by many companies may need to be upgraded to comply with such
"year 2000" requirements to remain functional. Significant uncertainty exists in
the software industry concerning the potential effects associated with such
compliance. Although GraphOn currently offers software products that are
designed and, in certain circumstances, are warranted to be year 2000 compliant,
there can be no assurance that GraphOn's software products contain all necessary
date code changes. In addition, there may be a significant amount of litigation
arising out of year 2000 compliance issues. Because of the unprecedented nature
of such litigation, it is uncertain whether or to what extent GraphOn may be
affected by it.
 
    GraphOn believes that the purchasing patterns of customers and potential
customers may be affected by year 2000 issues in a variety of ways. Many
companies are expending significant resources to purchase new software or
correct their current software systems for year 2000 compliance. These
expenditures may result in reduced funds available to purchase GraphOn's
products. In addition, many potential customers may choose to defer purchasing
year 2000 compliant products until they believe it is absolutely necessary, thus
resulting in potentially stalled market sales within the server-based software
industry. Conversely, year 2000 issues may cause other companies to accelerate
purchases, thereby causing an increase in short-term demand and a consequent
decrease in long-term demand for GraphOn's year 2000 compliant products. There
can be no assurance that year 2000 issues will not affect GraphOn in one or more
of a number of possible ways, and will not result in a material adverse effect
on GraphOn's business, operating results and financial condition.
 
RISKS RELATING TO UNITY SUBSEQUENT TO THE MERGER
 
POTENTIAL PUBLIC SALES OF A SIGNIFICANT NUMBER OF SHARES OF THE UNITY COMMON
  STOCK COULD REDUCE THE MARKET PRICE OF UNITY COMMON STOCK
 
    If Unity stockholders sell substantial amounts of Unity common stock,
including shares issuable upon the exercise of outstanding options and warrants
(an aggregate of 4,848,901 shares), in the public market following the merger,
then the market price of the Unity common stock could fall. Restrictions under
the securities laws and certain lock-up agreements limit the number of shares of
our common stock that will be available for sale in the public market. Upon
consummation of the merger, the holders of 9,529,525 shares, or approximately
86.6% of the shares of Unity common stock that will be outstanding after the
merger, will have agreed not to sell any such shares for at least 180 days after
the effective date of the merger.
 
    Following the completion of the merger, Unity intends to file a registration
statement to register all shares of common stock issuable under Unity's stock
option plans, including GraphOn's stock option plan that is being assumed by
Unity. After such registration statement becomes effective, shares issued upon
exercise of stock options will be eligible for resale in the public market
without restriction. Such sales could adversely affect the price of Unity's
common stock.
 
NO DIVIDENDS WILL BE PAID IN THE FORESEEABLE FUTURE
 
    Neither GraphOn nor Unity has ever paid cash dividends on its common stock.
Following the merger, Unity does not anticipate paying cash dividends for the
foreseeable future. Unity intends to reinvest any funds that might otherwise be
available for the payment of dividends in further development of its business
following the merger.
 
                                       xx
<PAGE>
THE PRICE OF UNITY'S SECURITIES MAY FLUCTUATE
 
    The market price of Unity's securities is likely to be highly volatile as
the stock market in general, and the market for technology companies in
particular, has been highly volatile. Stockholders may have difficulty selling
their Unity common stock following periods of volatility because of the market's
adverse reaction to such volatility.
 
    Factors which could cause such volatility may include, among others:
 
    - conditions or trends in the computer software industry;
 
    - changes in the market valuations of other computer software companies;
 
    - actual or anticipated variations in quarterly operating results;
 
    - announcements of technological innovations;
 
    - capital commitments and expenditures;
 
    - departures of key employees; and
 
    - announcements by Unity or its competitors of strategic alliances, joint
      ventures and significant acquisitions.
 
Many of these factors are beyond Unity's control and may materially adversely
affect the market price of Unity's common stock, regardless of Unity's future
operating results.
 
    The trading prices of many technology companies' stocks have reached
historical highs within the last 12 months and have reflected valuations
substantially above historical levels. During the same period, such companies'
stocks have also been highly volatile and have recorded lows well below such
historical highs. We cannot assure you that Unity's securities will trade at the
same levels of other technology companies or that technology stocks in general
will sustain their current levels.
 
LIMITATIONS UPON WARRANT EXERCISES
 
    Holders of warrants issued by Unity in its initial public offering cannot
exercise such warrants and then sell the underlying shares of Unity common stock
in the absence of an effective registration statement. The warrants are not
exercisable unless, at the time of exercise, Unity has a current prospectus
covering the shares of Unity common stock issuable upon exercise of the
warrants, and the shares have been registered, qualified or are deemed to be
exempt from registration under the securities laws of the state of residency of
the warrantholder. Although Unity has agreed with the underwriter of its initial
public offering to use its best efforts to keep a registration statement
covering the shares underlying such warrants effective for the life of the
warrants, if Unity fails to do so, the warrants may be deprived of their value.
 
UNITY'S CERTIFICATE OF INCORPORATION MAY ENTRENCH MANAGEMENT
 
    Unity's certificate of incorporation provides that the Unity board may issue
preferred stock without stockholder approval. Unity's post-merger certificate of
incorporation also will provide for a classified board, with each board member
serving a staggered three year term. The classification of the board has the
effect of requiring at least two annual stockholder meetings, instead of one, to
replace a majority of members of the board. The issuance of preferred stock and
the existence of a classified board could make it more difficult for a third
party to oust Unity's post-merger management or to acquire Unity.
 
UNITY COMMON STOCK MAY NOT HAVE AN ACTIVE TRADING MARKET
 
    There has been a sporadic and at times relatively illiquid public market for
the Unity securities. We cannot predict the extent to which a trading market
will develop or how liquid that market will be after the completion of the
merger.
 
                                      xxi
<PAGE>
                                    DILUTION
 
    The net tangible book value of Unity at January 31, 1999 was $5,838,786, or
$3.11 for each of the 1,875,000 outstanding shares of Unity common stock. Net
tangible book value per share represents the amount of total tangible assets of
Unity less total liabilities, divided by the number of shares of Unity common
stock outstanding. After giving effect to the merger, the pro forma net tangible
book value of Unity at January 31, 1999 would have been $8,064,357 or $0.73 per
share of Unity common stock ($6,876,065, or $0.64 per share of Unity common
stock, assuming the conversion into cash of 19.99% in interest of the Unity
common stock held by public stockholders (as hereinafter defined)). This
represents an immediate dilution in net tangible book value of $2.35 per share
of Unity common stock ($2.45 per share assuming 19.99% conversion) to the Unity
stockholders prior to the merger. The following table illustrates the dilution
in net tangible book value per share of Unity common stock to the Unity
stockholders prior to the merger.
 
<TABLE>
<CAPTION>
                                                                TANGIBLE BOOK    SHARES OF     TANGIBLE BOOK VALUE
                                                                  VALUE OF         UNITY       PER SHARE OF UNITY
                                                                    UNITY       COMMON STOCK      COMMON STOCK
                                                                -------------  --------------  -------------------
<S>                                                             <C>            <C>             <C>
BEFORE MERGER.................................................   $ 5,838,786       1,875,000        $    3.11
AFTER MERGER TRANSACTION:
  ASSUMING NO CONVERSION
    Pro forma as of January 31, 1999 giving effect to the
      Merger(1)...............................................   $ 8,064,357      10,999,543        $    0.73
  ASSUMING 19.99% CONVERSION
    Pro forma as of January 31, 1999 giving effect to the
      Merger(1)...............................................   $ 6,876,065      10,749,668        $    0.64
</TABLE>
 
- ------------------------
 
(1) Does not give effect to the possible exercise subsequent to the effective
    time of options and warrants to purchase a maximum of approximately
    4,598,901 shares of Unity common stock.
 
                                      xxii
<PAGE>
                                  INTRODUCTION
 
    This joint proxy statement/prospectus is being furnished by Unity to holders
of its shares of common stock and by GraphOn to holders of its shares of common
stock in connection with the solicitation of proxies by the respective boards of
directors of Unity and GraphOn for use at the special meeting of Unity
stockholders and at the special meeting of GraphOn shareholders. The special
meeting will be held at the times and places and for the purposes set forth in
the accompanying notices of special meeting of Unity stockholders and GraphOn
shareholders, respectively, or any adjournments or postponements.
 
    At the meetings, the Unity stockholders and the GraphOn shareholders,
respectively, will consider and vote upon a proposal to approve and adopt an
agreement and plan of merger and reorganization, dated as of February 1, 1999,
between Unity and GraphOn, pursuant to which, among other matters, GraphOn will
merge with and into Unity. At the Unity meeting, Unity stockholders will first
consider and vote upon a proposal to amend Unity's certificate of incorporation
to delete a provision that required Unity to have been liquidated, and its net
assets (estimated at $5.28 per common share) distributed to public Unity
stockholders by January 11, 1999 as a consequence of Unity's failure to have
effected a merger or other business combination by November 12, 1998. The
deleted provision will be replaced with a provision that Unity will be
liquidated, and its net assets distributed to public Unity stockholders, if the
proposed merger with GraphOn is not approved by Unity stockholders or,
alternatively, if such merger is approved but not completed by June 30, 1999.
 
    At the effective time of the merger, Unity will issue approximately
9,124,543 shares of its common stock to the GraphOn shareholders in exchange for
all of the then issued and outstanding shares of common stock of GraphOn. Unity
also will assume certain GraphOn warrants exercisable for up to 876,790 shares
of Unity common stock and issue 250,000 warrants exercisable for an aggregate of
up to 250,000 shares of Unity common stock. As a result of the merger and the
transactions contemplated by the merger agreement, GraphOn will be merged with
and into Unity, Unity's name will be changed to "GraphOn Corporation," the
GraphOn shareholders will collectively own approximately 83.0% of the then
outstanding Unity common stock and the   present directors of GraphOn will
constitute all but one of the initial members of Unity's post-merger board of
directors. One of the present directors of Unity will continue as a director
following the merger. The current Unity stockholders, collectively, will
continue to own approximately 17.0% of the outstanding Unity common stock
following the merger.
 
                            SOLICITATION OF PROXIES
 
    The costs of solicitation of Unity stockholder proxies and GraphOn
shareholder proxies will be borne by Unity and GraphOn, respectively. Unity and
GraphOn will reimburse the respective brokers, fiduciaries, custodians and other
nominees for reasonable out-of-pocket expenses incurred in sending this joint
proxy statement/prospectus and other proxy materials to, and obtaining
instructions relating to such materials from, the respective beneficial owners
of Unity common stock and GraphOn common stock. Unity and GraphOn shareholder
proxies may be solicited by directors, executive officers or regular employees
of, respectively, Unity and GraphOn, in person, by letter, telephone or
telegram.
 
                           THE UNITY SPECIAL MEETING
 
PURPOSES OF MEETING
 
    At the Unity meeting, Unity stockholders who are eligible to vote will be
asked to consider and vote upon a proposal to amend Unity's certificate of
incorporation. If adopted, the amendment will delay Unity's liquidation pending
the outcome of the vote by Unity stockholders to approve the merger. This
amendment further provides that if the merger with GraphOn is approved by Unity
stockholders but is not completed by June 30, 1999, Unity will be liquidated and
its net assets distributed to public Unity stockholders. A copy of the text of
the charter amendment is attached as Exhibit A to this joint proxy
statement/prospectus. See "--The Charter Amendment."
 
                                       1
<PAGE>
    If the charter amendment is not approved at the Unity meeting, Unity
stockholders will not consider and vote upon the proposal to approve the merger
and Unity will be liquidated.
 
    At the Unity meeting, eligible Unity stockholders also will be asked to
consider and vote upon a proposal to approve the merger, including the merger
agreement. A vote in favor of the merger of GraphOn into Unity also will
constitute approval of Unity's assumption of the GraphOn 1998 Stock Option/Stock
Issuance Plan and all of the outstanding options issued under such plan. A copy
of the merger agreement is attached as Exhibit B to this Joint Proxy
Statement/Prospectus.
 
    THE UNITY BOARD, WITHOUT DISSENT, HAS APPROVED THE CHARTER AMENDMENT AND THE
MERGER AND RECOMMENDS THAT THE UNITY STOCKHOLDERS VOTE "FOR" THE PROPOSALS TO
APPROVE AND ADOPT THE CHARTER AMENDMENT AND THE MERGER, INCLUDING THE MERGER
AGREEMENT. See "The Merger--Recommendations of the Boards of Directors and
Reasons for the Merger--Unity."
 
DATE, TIME AND PLACE; RECORD DATE
 
    The Unity meeting is scheduled to be held at 10:00 A.M., local time, on May
  , 1999, at 800 Third Avenue, 30th Floor, New York, New York. The Unity board
has fixed the close of business on May   , 1999 as the record date for the
determination of holders of Unity common stock eligible to receive notice of and
to vote at the Unity meeting. On the Unity record date, there were 1,875,000
shares of Unity common stock, held of record by 37 persons, outstanding and
entitled to vote. Each share of Unity common stock is entitled to one vote.
 
VOTING RIGHTS
 
    Holders of record of Unity common stock on the Unity record date are
entitled to vote on the proposals to be presented to the Unity stockholders at
the Unity meeting. The presence, either in person or by proxy, of the holders of
a majority of the outstanding shares of Unity common stock eligible to vote at
the Unity meeting is necessary to constitute a quorum at the Unity meeting.
Abstentions and broker non-votes are counted for purposes of determining the
presence or absence of a quorum for the transaction of business. Pursuant to
Delaware law, the affirmative vote of the holders of at least a majority of
Unity common stock is required to approve and adopt the charter amendment and
the merger, including the merger agreement. A condition precedent to the
completion of the merger requires that no more than 20% of the outstanding Unity
common stock held by shareholders who acquired such common stock in Unity's
initial public offering or thereafter (the "public Unity stockholders") vote
against approval of the merger and thereafter offer their shares to Unity for
conversion into cash.
 
    Unity stockholders who acquired such common stock prior to the IPO (the
"non-public Unity stockholders") have agreed to vote such Unity common stock
(collectively, an aggregate of approximately 33.3% of the currently outstanding
shares of Unity common stock) with respect to the proposals to approve the
charter amendment and the merger in accordance with the vote of the majority of
all public Unity stockholders. Consequently, if a majority of outstanding Unity
common stock held and voted by public Unity stockholders is voted in favor of
the charter amendment, the non-public Unity stockholders will vote their shares
of Unity common stock in favor of the charter amendment. The vote upon whether
to approve the merger will be governed in a like manner.
 
    If a Unity stockholder attends the Unity meeting, he or she may vote by
ballot. However, many of the Unity stockholders may be unable to attend the
Unity meeting. Therefore, the Unity board is soliciting proxies so that each
holder of Unity common stock on the Unity record date has the opportunity to
vote on the proposals to be considered at the Unity meeting. When a proxy card
is returned properly signed and dated, the shares represented thereby will be
voted in accordance with the instructions on the proxy card. If a Unity
stockholder does not return a signed proxy card, his or her shares will not be
voted. Unity stockholders are urged to mark the box on the proxy card to
indicate how their shares are to be voted. If a Unity stockholder (other than a
broker which holds shares in street name for its customers) returns a
 
                                       2
<PAGE>
signed proxy card, but does not indicate how his or her shares are to be voted,
the shares represented by the proxy card will be voted FOR approval and adoption
of each of the charter amendment and the merger. If a signed proxy card is
returned by a Unity stockholder and expressly reflects an abstention upon any
proposal or if a signed proxy card is returned by a broker with no indication of
how shares are to be voted, the shares evidenced thereby will be counted towards
the quorum necessary to convene the Unity meeting, noted in the immediately
preceding paragraph, but will not be counted towards the requisite affirmative
vote upon such proposal as mandated by applicable Delaware law. The proxy card
also confers discretionary authority on the individuals appointed by the Unity
board and named on the proxy card to vote the shares represented thereby on any
other matter incidental to the Unity meeting that is properly presented for
action at such meeting.
 
    Any Unity stockholder who executes and returns a proxy card may revoke such
proxy at any time before it is voted by (i) notifying in writing the Secretary
of Unity, at 245 Fifth Avenue, New York, New York 10016, (ii) granting a
subsequent proxy or (iii) appearing in person and voting at the Unity meeting.
Attendance at the Unity meeting will not in and of itself constitute revocation
of a proxy.
 
    IF THE MERGER IS NOT APPROVED BY THE REQUISITE VOTE IMPOSED BY APPLICABLE
DELAWARE LAW OR, EVEN IF SO APPROVED BUT 20% OR MORE IN INTEREST OF ALL PUBLIC
UNITY STOCKHOLDERS ACTUALLY VOTE AGAINST APPROVAL OF THE MERGER AND
AFFIRMATIVELY REQUEST CONVERSION OF THEIR SHARES OF UNITY COMMON STOCK INTO
CASH, THE MERGER AGREEMENT WILL BE TERMINATED AND THE MERGER ABANDONED.
 
                          THE GRAPHON SPECIAL MEETING
 
PURPOSES OF MEETING
 
    At the GraphOn meeting, GraphOn shareholders eligible to vote thereat will
be asked to consider and vote upon a proposal to approve and adopt the merger,
including the merger agreement.
 
    THE GRAPHON BOARD, WITHOUT DISSENT, HAS APPROVED THE MERGER AND RECOMMENDS
THAT THE GRAPHON SHAREHOLDERS VOTE "FOR" THE PROPOSAL TO APPROVE AND ADOPT THE
MERGER, INCLUDING THE MERGER AGREEMENT. See "The Merger--Recommendations of the
Boards of Directors and Reasons for the Merger-- GraphOn."
 
DATE, TIME AND PLACE; RECORD DATE
 
    The GraphOn meeting is scheduled to be held at 10:00 A.M., local time, on
May   , 1999, at 150 Harrison Avenue, Campbell, California. The GraphOn board
has fixed the close of business on May   , 1999 as the record date for the
determination of holders of GraphOn common stock eligible to receive notice of
and to vote at the GraphOn meeting. On the GraphOn record date, there were
16,363,959 shares of GraphOn common stock, held of record by approximately 195
persons, outstanding and entitled to vote. Each share of GraphOn common stock is
entitled to one vote.
 
VOTING RIGHTS
 
    Holders of record of GraphOn common stock on the GraphOn record date are
entitled to vote on the proposals to be presented to the GraphOn shareholders at
the GraphOn meeting. The presence, either in person or by proxy, of the holders
of a majority of the outstanding shares of GraphOn common stock eligible to vote
at the GraphOn meeting is necessary to constitute a quorum at the GraphOn
meeting. Abstentions and broker non-votes are counted for purposes of
determining the presence or absence of a quorum for the transaction of business.
However, pursuant to California law, the affirmative vote of the holders of at
least a majority of GraphOn common stock eligible to vote at the GraphOn meeting
is required to approve and adopt the merger, including the merger agreement.
 
    If a GraphOn shareholder attends the GraphOn meeting, he or she may vote by
ballot. However, many of the GraphOn shareholders may be unable to attend the
GraphOn meeting. Therefore, the
 
                                       3
<PAGE>
GraphOn board is soliciting proxies so that each holder of GraphOn common stock
on the GraphOn record date has the opportunity to vote on the proposals to be
considered at the GraphOn meeting. When a proxy card is returned properly signed
and dated, the shares represented thereby will be voted in accordance with the
instructions on the proxy card. If a GraphOn shareholder does not return a
signed proxy card, his or her shares will not be voted. GraphOn shareholders are
urged to mark the box on the proxy card to indicate how their shares are to be
voted. If a GraphOn shareholder (other than a broker which holds shares in
street name for its customers) returns a signed proxy card, but does not
indicate how his or her shares are to be voted, the shares represented by the
proxy card will be voted FOR approval and adoption of the merger. If a signed
proxy card is returned by a GraphOn shareholder and expressly reflects an
abstention upon any proposal, the shares evidenced thereby will be counted
towards the quorum necessary to convene the GraphOn meeting, but will not be
counted towards the requisite affirmative vote upon such proposal as mandated by
applicable California law. The proxy card also confers discretionary authority
on the individuals appointed by the GraphOn board and named on the proxy card to
vote the shares represented thereby on any other matter incidental to the
GraphOn meeting that is properly presented for action at such meeting.
 
    Any GraphOn shareholder who executes and returns a proxy card may revoke
such proxy at any time before it is voted by (i) notifying in writing the
Secretary of GraphOn, at Brobeck, Phleger & Harrison LLP, Two Embarcadero Place,
2200 Geng Road, Palo Alto, California 94303, Attn.: Curtis L. Mo, Esq., (ii)
granting a subsequent proxy or (iii) appearing in person and voting at the
GraphOn meeting. Attendance at the GraphOn meeting will not in and of itself
constitute revocation of a proxy.
 
                             THE CHARTER AMENDMENT
 
    The charter amendment, to be presented to the Unity stockholders as a single
integral proposal, consists of three separate but inter-related amendments to
the Unity certificate of incorporation, as follows:
 
        1. The deletion of portions of Articles SEVENTH and NINTH that preclude
    any amendment of Article SEVENTH prior to the consummation of a merger;
 
        2. The deletion of the provision set forth in paragraph (c) of Article
    SEVENTH that required Unity to be liquidated, and its net assets distributed
    to public Unity stockholders, by January 10, 1999 if Unity had not effected
    a merger by November 12, 1998; and
 
        3. The replacement of such deletion with a provision that would require
    Unity to be liquidated, and its net assets distributed to public Unity
    stockholders, if Unity does not complete the merger by June 30, 1999.
 
    The charter amendment is being submitted for consideration and approval by
the Unity stockholders in order to defer Unity's liquidation pending the result
of a vote by Unity stockholders upon the proposal to approve the merger.
 
    The complete text of those portions of Unity's certificate of incorporation
to be effected by the charter amendment is attached to this joint proxy
statement/prospectus as Exhibit A.
 
    Unity has obtained from its special counsel, Richards, Layton & Finger,
P.A., of Wilmington, Delaware, an opinion to the effect that those provisions of
Unity's certificate of incorporation which purport to prohibit the amendment of
paragraph (c) of Article SEVENTH of the certificate of incorporation during the
period commencing upon consummation of the Company's initial public offering and
prior to the consummation of a Business Combination (as defined) are contrary to
Delaware law because they eliminate the rights granted to a corporation and its
shareholders by the Delaware General Corporation Law ("DGCL") to amend the
corporation's certificate of incorporation if certain procedures are followed.
The opinion of Richards, Layton & Finger, P.A. notes, however, that there is no
Delaware case directly on point and that its conclusion is based on reasoning
from decisions which are not on point.
 
                                       4
<PAGE>
    If the charter amendment and the merger are each approved by Unity
stockholders, Unity will take all steps reasonably necessary to effect the
merger in accordance with the terms of the merger agreement, as soon as
practical.
 
    If the charter amendment is not approved by Unity stockholders, the merger
will not be voted upon by Unity stockholders and Unity's board will take steps
to promptly effect a liquidation of Unity and a distribution of its net assets
to public Unity stockholders.
 
    If the charter amendment is approved and the merger is not approved by Unity
stockholders or, if approved but not completed on or prior to June 30, 1999, the
Unity board will take steps to promptly effect a liquidation of Unity and a
distribution of its net assets to public Unity stockholders.
 
    In adopting the charter amendment, the Unity board believed it was
beneficial for Unity stockholders to have the opportunity to consider the merger
with GraphOn. The Unity board also believed that if Unity stockholders did not
approve the merger with GraphOn, its efforts at seeking to find a suitable
candidate for a merger or other business combination should cease with finality
and the Unity board would then proceed to effect a prompt liquidation of Unity.
 
                                   THE MERGER
 
GENERAL
 
    The following is a brief summary of the material features of the merger.
This summary does not purport to be complete and is qualified in its entirety by
reference to the merger agreement, which is attached to this joint proxy
statement/prospectus as Exhibit B.
 
    At the effective time of the merger, GraphOn will be merged with and into
Unity, and the Unity certificate of incorporation will be amended to change
Unity's name to "GraphOn Corporation."
 
    The following table identifies those persons or groups of persons who will
derive significant equity interests in Unity following completion of the merger:
 
<TABLE>
<CAPTION>
                                         EQUITY INTEREST IN UNITY UPON        BASIS FOR ACQUISITION OF EQUITY
NAME OF GROUP                                CONSUMMATION OF MERGER                       INTEREST
- ------------------------------------  ------------------------------------  ------------------------------------
<S>                                   <C>                                   <C>
 
Executive officers and directors of   2,777,231 shares of Unity common      In exchange for 4,980,688 shares of
  GraphOn                             stock                                 GraphOn common stock held prior to
                                                                            the merger
 
Principal shareholders of GraphOn     4,846,602 shares of Unity common      In exchange for 8,691,899 shares of
  (excluding Spencer Trask)           stock                                 GraphOn common stock held prior to
                                                                            the merger
 
Investors in GraphOn's private        2,878,815 shares of Unity common      In exchange for 5,162,868 shares of
  equity financing between October    stock                                 GraphOn common stock held prior to
  28, 1998 and January 27, 1999                                             the merger
 
Spencer Trask                         1,263,677 shares of Unity Common      In exchange for 2,266,279 shares of
                                      Stock, 250,000 Class A redeemable     GraphOn common stock held prior to
                                      common stock purchase warrants        the merger and in consideration for
                                      exercisable for an aggregate of up    consulting services performed in
                                      to 250,000 shares of Unity Common     connection with the merger.
                                      Stock and up to $575,000.
</TABLE>
 
                                       5
<PAGE>
EXCHANGE RATIO
 
    At the effective time, each then outstanding share of GraphOn common stock
will be converted into the right to receive approximately .5576 of a share of
Unity common stock (the "exchange ratio"), or an approximate aggregate of
9,124,543 shares of Unity common stock (the "Unity merger stock"). No fractional
shares of Unity common stock will be issued in the merger, and GraphOn
shareholders whose shares are converted in the merger will be entitled to a cash
payment in lieu of such fractional shares. The exchange ratio was established
through arms-length negotiations between Unity and GraphOn.
 
UNITY EXCHANGE OPTIONS
 
    At the effective time, the GraphOn 1998 Stock Option/Stock Issuance Plan and
all outstanding options under the plan will be assumed by Unity. A total of
1,236,132 shares of GraphOn common stock are reserved for issuance under the
plan. Currently options are outstanding under the plan to purchase approximately
353,500 shares of GraphOn common stock at exercise prices ranging from $0.075 to
$0.85 per share. The number of shares reserved for issuance under the plan,
together with the number of shares subject to outstanding options and the
exercise prices in effect under those options, will be adjusted to reflect the
exchange ratio. Accordingly, after conversion, a total of 689,267 shares of
Unity common stock will be reserved for issuance under the plan and options to
purchase approximately 197,111 shares of Unity common stock at exercise prices
ranging from approximately $0.13 to $1.52 per share (the "Unity exchange
options") will be outstanding under the plan. The shares reserved under the
plan, and all outstanding options, will be registered on a separate registration
statement under the Securities Act. Unity will use its best efforts subsequent
to the effective time to maintain the registered status of such shares up to and
through the expiration date of the Unity exchange options and to maintain a
current prospectus covering such shares.
 
UNITY MERGER WARRANTS
 
    At the effective time, warrants to purchase 1,572,437 shares of GraphOn
common stock at an exercise price of $1.00 per share will be assumed by Unity
and converted at the exchange ratio into warrants to purchase 876,790 shares of
Unity common stock at an exercise price of approximately $1.79 per share (the
"Unity merger warrants").
 
    The shares of Unity common stock issuable upon exercise of the Unity merger
warrants are being registered under the Securities Act contemporaneously with
the date of this joint proxy statement/ prospectus. Unity will use its best
efforts subsequent to the effective time to have such shares of Unity common
stock so registered or qualified at all times up to and through the respective
expiration dates of the Unity merger warrants and to maintain a current
prospectus covering their underlying shares.
 
CLASS A REDEEMABLE COMMON STOCK PURCHASE WARRANT
 
    At the effective time, Unity will issue to Spencer Trask 250,000 Class A
redeemable common stock purchase warrants exercisable for an aggregate of up to
250,000 shares of Unity common stock at an exercise price of $5.50 per share.
Both the warrant and the shares of Unity common stock issuable upon exercise of
the warrant are being registered under the Securities Act contemporaneously with
the date of this joint proxy statement/prospectus. Unity will use its best
efforts subsequent to the effective time to have the warrant and the shares of
Unity common stock underlying the warrant so registered or qualified at all
times up to and through the expiration date of the warrant and to maintain a
current prospectus covering the warrant and the underlying shares. This warrant
is to be issued to Spencer Trask in consideration for consulting services
performed in connection with the merger.
 
                                       6
<PAGE>
CLOSING; EFFECTIVE TIME
 
    The closing of the transactions contemplated by the merger agreement will
take place as soon as practicable immediately following the date on which the
last of the conditions set forth in the merger agreement is satisfied or waived,
or at such other time as Unity and GraphOn agree. The merger will become
effective at such time as a certificate of merger and an agreement of merger
reflecting the merger shall be accepted for filing by the Secretary of State of
the State of Delaware, and by the Secretary of State of the State of California,
respectively. Such filings will be made simultaneously with or as soon as
practicable after the closing.
 
EXCHANGE OF STOCK CERTIFICATES
 
    At the effective time, the GraphOn shareholders will exchange certificates
representing all of the GraphOn common stock for the Unity merger stock. No
fractional shares of Unity common stock will be issued.
 
    Unity stockholders may but will not be required to surrender certificates
evidencing shares of Unity common stock following the approval and adoption of
the merger agreement and the subsequent implementation of the merger.
 
NO FRACTIONAL SHARES
 
    No certificates or scrip for fractional shares of Unity common stock will be
issued upon the surrender for exchange of GraphOn certificates in the merger. No
dividend, stock split or interest will be paid with respect to any fractional
share of Unity common stock, and such fractional interests will not entitle the
owner thereof to vote or to any of the other rights of a holder of Unity common
stock. Instead, each GraphOn shareholder who would otherwise have been entitled
to a fraction of a share of Unity common stock upon surrender of GraphOn
certificates for exchange will be entitled to receive a cash payment equal to
such fraction multiplied by the closing price per share of Unity common stock as
reported by the OTC Bulletin Board on the day preceding the effective time.
 
BACKGROUND OF THE MERGER
 
    As discussed under "Business of Unity" elsewhere in this joint proxy
statement/prospectus, Unity was formed to serve as a vehicle to effect a merger
with an operating business which the Unity board believed had significant growth
potential.
 
    One of the conditions to the completion of the Unity IPO was Unity's
agreement with the underwriters of the IPO, placed into Unity's certificate of
incorporation at their request, to the effect that if Unity was unable to enter
into a letter of intent to effect a merger by May 12, 1998, Unity would be
liquidated and its net assets distributed to the public Unity stockholders.
However, if Unity entered into such a letter of intent on or prior to such date,
Unity would then be accorded an additional six month period to complete such
merger, failing which Unity was to be liquidated. Unity's certificate of
incorporation further provides that this liquidation requirement cannot be
deleted prior to the completion of a merger by means of an amendment to Unity's
certificate of incorporation.
 
    At the time of the Unity IPO, the Unity board adopted a policy that Unity
would not effect a merger with any operating business unless the fair market
value of such company, as determined by the Unity board based upon standards
generally accepted by the financial community, such as actual and potential
sales, earnings, cash flow and book value, would be at least 80% of the net
assets of Unity at the time of such merger (the "fair market value
requirement"). If the Unity board could not determine that an operating business
had sufficient fair market value, the Unity board's policy dictated that Unity
would have to obtain an opinion from an independent investment banking firm to
such effect, absent which Unity
 
                                       7
<PAGE>
could not proceed with the proposed merger. However, no such opinion would be
required if the Unity board were to determine that the potential operating
business prospective had sufficient fair market value.
 
    Following the consummation of Unity's IPO in November 1996, Unity's
executive officers commenced an active search for an operating business.
Approximately 90% of such net proceeds were placed in escrow immediately
following the IPO, to be released either upon consummation of a merger or if
required to facilitate a merger, as applicable.
 
    Excluding Worlds, Inc., a privately held company that was engaged in the
business of developing applications for its three dimensional Internet
technology, with particular emphasis on producing music-oriented websites in
conjunction with record companies, and with which Unity previously entered into
a now lapsed merger agreement, and GraphOn, during the period from November 1996
through May 1998 Unity's executive officers evaluated approximately 15 potential
operating businesses in diverse industries. Serious consideration was given to
effecting a merger with four of such potential operating businesses engaged in,
respectively, the communications equipment, specialty chemical, computer systems
and optical fiber industries. Unity conducted exploratory discussions with each
of these four potential operating businesses, but did not enter into a
definitive merger agreement with any of such concerns.
 
    In evaluating each potential operating business, Unity's executive officers
and the Unity board first considered whether or not such operating business met
the fair market valuation requirement and, having determined such requirement
had been satisfied, then considered all or a majority of the following factors
(collectively, "acquisition criteria"):
 
    - costs associated with effecting the merger;
 
    - equity interest in and opportunity for control of the operating business;
 
    - growth potential of the operating business and the industry in which it
      operates;
 
    - experience and skill of management and availability of additional
      necessary personnel of the operating business;
 
    - capital requirements of the operating business;
 
    - competitive position of the operating business;
 
    - stage of development of the product, process or service of the operating
      business;
 
    - degree of current or potential market acceptance of the product, process
      or service of the operating business;
 
    - proprietary features and degree of intellectual property or other
      protection of the product, process or service of the operating business;
      and
 
    - regulatory environment of the industry in which the operating business
      operates.
 
                                       8
<PAGE>
    All of the prospective operating businesses were rejected prior to execution
of a definitive merger agreement. The primary basis or bases of rejection were
as follows:
 
<TABLE>
<CAPTION>
PROSPECTIVE ACQUIRED BUSINESS                                         UNSATISFIED ACQUISITION CRITERIA
- --------------------------------------------------------  --------------------------------------------------------
<S>                                                       <C>
 
Communications equipment (wireless telephone headsets)    Absence of demonstrable evidence of market acceptance of
                                                          products; inability to recruit and retain experienced
                                                          sales personnel and greater than projected capital
                                                          requirements (4th, 5th, 7th and 8th acquisition
                                                          criteria).
 
Specialty chemicals (industrial enzymes)                  Principal owner and operator of target was unwilling to
                                                          personally represent target's past and present
                                                          compliance with applicable environmental laws and
                                                          regulations (3rd, 5th and 10th acquisition criteria).
 
Computer systems (voter registration information          Inability to recruit chief financial officer and
  management systems for public sector use)               shortfall in target's projected revenues which, when
                                                          combined with Unity's capital resources, were believed
                                                          by Unity's executive officers to be insufficient to
                                                          assure future profitability (3rd, 4th, 5th and 6th
                                                          acquisition criteria).
 
Optical fibers (plastic optical fiber cables for in-      Absence of demonstrable evidence of market acceptance of
  office server/computer/ peripherals interface)          products; significant additional capital requirements;
                                                          extremely early state of product development (5th, 7th
                                                          and 8th acquisition criteria)
</TABLE>
 
    The last potential operating business to be evaluated by Unity prior to its
negotiation of its agreement to merge with Worlds was Boston Optical Fiber, Inc.
("BOF"), a privately held company engaged in the development of plastic optical
fiber for use in the interface of computer networks and local access
communications.
 
    On or about April 13, 1998, after approximately six weeks of intermittent
discussions between an independent consultant retained by Unity to evaluate both
the technological feasibility and commercial viability of BOF's second
generation products, such consultant informed Lawrence Burstein, Unity's
President, that he felt it would take no less than one year and possibly as long
as 18 months to two years to establish such feasibility. He further stated that
he was not in a position to express a firm opinion as to commercial viability
until technological feasibility was established. He specifically called Mr.
Burstein's attention to the fact that fiber optic technology was rapidly
changing and there existed a strong possibility that existing manufacturers of
both copper and glass cable would expend significant revenues during the next
several years to enhance the performance and reduce the cost of their respective
interface cabling products in an effort to maintain their dominant market share,
to the possible detriment of plastic optical fiber cable usage. He indicated
that should this occur, he questioned whether BOF would be in a position to
effectively compete with such concerns.
 
    On April 24, 1998, cognizant of the fact that if the Unity board elected not
to proceed with a merger with BOF Unity would have until May 12, 1998 to enter
into a letter of intent for an alternative merger or undergo liquidation, Mr.
Burstein initiated a meeting with Thomas Kidrin, Worlds' President, and Steven
Greenberg, a principal stockholder of and consultant to Worlds, to explore the
feasibility of a possible merger between Unity and Worlds. Mr. Burstein was
familiar with Worlds and its then current and
 
                                       9
<PAGE>
proposed business operations by reason of his status as a principal of Unity
Venture Capital Associates Ltd. ("Unity VCA"), a private investment banking firm
which had become a minor shareholder in Worlds as a consequence of a previous
merger between Worlds and Academic Computer Systems, Inc. ("ACS"), a dormant
"blank check" company controlled by Unity VCA.
 
    On April 27, 1998, a meeting was held at Mr. Greenberg's office in New York
City, at which time Messrs. Kidrin and Greenberg presented a comprehensive
review of the progress made by Worlds in developing both its 3-D Internet
technology and its potential applications.
 
    On April 29, 1998, Mr. Burstein telephoned each of the members of the Unity
board and explained in detail his concerns over proceeding with a merger with
BOF. In particular, Mr. Burstein observed that perhaps that as much as two years
could elapse before the technological feasibility of BOF's second generation
products could be established, with no assurance at this time as to outcome, and
that even if such products were technologically feasible and they lent
themselves to patent or other proprietary protection, several additional years
could elapse before they could be brought to market. Each of the members of the
Unity board, contacted individually by Mr. Burstein on April 29, 1998, advised
Mr. Burstein that Unity should not proceed with a merger with BOF.
 
    On the afternoon of April 29, 1998, Mr. Burstein convened a telephonic
meeting of the Unity board to apprise its members of the results of his
conversations with Messrs. Kidrin and Greenberg on April 27, 1998. Like Mr.
Burstein, the other members of the Unity board were generally familiar with
Worlds, having been briefed from time to time by Mr. Burstein in individual
conversations given the fact that each was a shareholder of Worlds by virtue of
their prior equity interests in ACS. After reflecting upon Mr. Burstein's
recounting of his April 27, 1998 briefing by Messrs. Kidrin and Greenberg,
reviewing the several Acquisition Criteria, being also apprised by Mr. Burstein
of Mr. Greenberg's apparent relationships in the pre-recorded music and
entertainment industries, and noting the absence of any other operating business
as a potential merger partner for Unity, the Unity board unanimously concluded
that Mr. Burstein should immediately enter into the negotiation of merger terms
between Unity and Worlds.
 
    Several meetings and telephonic discussions were held during the next
several days between Mr. Burstein and persons affiliated with Worlds in an
effort to negotiate the terms of a merger. On May 6, 1998, an agreement was
reached between the parties and a definitive letter of intent executed. A
definitive merger agreement was executed on June 25, 1998, and announced by each
of Unity and Worlds on June 26, 1998.
 
    On July 24, 1998, a registration statement was filed by Unity with the SEC
covering the Unity securities to be issued in the proposed merger with Worlds.
The registration statement was declared effective by the SEC on September 14,
1998. Meetings of the respective stockholders of Unity and Worlds were held on
October 29, 1998 to consider the proposed merger between Worlds and Unity. Unity
stockholders voted against the proposed merger with Worlds at their October 29,
1998 meeting.
 
    Following the October 29, 1998 meeting of Unity stockholders, Mr. Burstein
was contacted by a number of persons who expressed varying degrees of interest
in locating a suitable candidate for a potential merger with Unity.
 
    Mr. Burstein initially informed each of such persons that Unity, under the
terms of its certificate of incorporation, planned to liquidate and distribute
its net assets to public Unity stockholders by January 11, 1999. Mr. Burstein
also advised each of these persons that he would be willing to listen to their
respective presentations and review any written materials they had because if a
proposed merger candidate offered the potential of significant appreciation and
benefit to Unity stockholders, he would request Unity's counsel to explore
Unity's ability to amend its certificate of incorporation to defer liquidation
until such time as the Unity stockholders could vote upon any such merger
proposal.
 
    On November 25, 1998, Mr. Burstein was introduced by a minority shareholder
of Unity VCA to William Dioguardi of Spencer Trask Securities Incorporated, who
informed Mr. Burstein that Spencer
 
                                       10
<PAGE>
Trask was acting as a financial advisor and placement agent to GraphOn in a
private placement of GraphOn common stock. Mr. Dioguardi informed Mr. Burstein
of recent developments in GraphOn's business. Mr. Dioguardi expressed his belief
that a merger between Unity and GraphOn, which would afford GraphOn access to
Unity's cash reserves in addition to the anticipated proceeds of GraphOn's own
private placement, could position GraphOn to achieve significant growth and
profitability.
 
    Following these discussions, Mr. Burstein requested Unity's counsel to
evaluate the feasibility of seeking Unity shareholder approval of an amendment
to Unity's certificate of incorporation which would permit the Unity board to
defer Unity's liquidation until the Unity shareholders could evaluate and vote
upon a new merger transaction. Counsel considered this issue, reaching a
preliminary conclusion that such an amendment should be permissible. Counsel
then discussed its conclusion with Richards Layton & Finger, a Delaware law
firm.
 
    On November 30, 1998, Richards, Layton & Finger, P.A. verbally advised
Unity's counsel that such firm was of the preliminary opinion that Unity's
certificate of incorporation could be amended to achieve the result desired by
Mr. Burstein.
 
    Following receipt of this advice, telephone discussions were held between
Mr. Burstein and other members of the Unity board, during the course of which
Mr. Burstein informed the other board members of the preliminary opinion
expressed by Richards, Layton & Finger, P.A. and of his desire to open
discussions with GraphOn with a view towards negotiating a merger between
GraphOn and Unity.
 
    On December 2, 1998, Unity's counsel prepared and circulated for review to
GraphOn and GraphOn's counsel a draft letter of intent calling for a merger
between Unity and GraphOn.
 
    On December 8, 1998, Mr. Burstein met in New York City with Walt Keller,
GraphOn's president and chief executive officer, to discuss the proposed merger
terms. Mr. Dioguardi was present at this meeting as were other representatives
of Spencer Trask. Following this meeting, Unity's counsel prepared and
circulated a revised letter of intent.
 
    On December 9, 1998, Mr. Burstein, accompanied by Norman Leben, one of
Unity's directors, again met with Mr. Keller in New York City to discuss the
contents of the revised letter of intent. Mr. Dioguardi and Robin Ford,
GraphOn's executive vice president, also participated in these discussions. An
agreement was reached that afternoon on the financial terms of a merger between
Unity and GraphOn, following which Unity's counsel prepared and circulated a
definitive letter of intent, which was signed late in the afternoon on December
10, 1998 and announced by a press release on the following day.
 
    On December 22, 1998, Unity's counsel distributed a proposed merger
agreement to GraphOn and its counsel.
 
    On January 6, 1999, Mr. Burstein, accompanied by counsel, met with Mr.
Keller and his counsel in Palo Alto, California to discuss the draft merger
agreement and to commence a customary "due diligence" investigation.
 
    On January 13, 1999, Richards, Layton & Finger, P.A. delivered its written
opinion to Unity to the effect that the provisions in Unity's certificate of
incorporation which purport to prohibit the amendment of Article SEVENTH of the
certificate of incorporation are contrary to Delaware law because they
eliminated the rights granted to the corporation and its shareholders by the
DGCL to amend the corporation's certificate of incorporation if certain
procedures are followed.
 
    On January 15, 1999, Unity's counsel distributed a revised merger agreement
to GraphOn and its counsel.
 
    On January 27, 1999, Unity's counsel distributed a further revised merger
agreement to GraphOn and its counsel, reflecting comments received from
GraphOn's counsel on January 26, 1999 upon the prior draft. Following
negotiations between Unity's and GraphOn's respective counsel on January 28,
1999 and
 
                                       11
<PAGE>
again on January 29, 1999, a definitive merger agreement was signed by Unity and
GraphOn on February 1, 1999 and announced by press release on the following day.
 
RECOMMENDATIONS OF THE BOARDS OF DIRECTORS AND REASONS FOR THE MERGER
 
    UNITY.  In considering whether or not to approve the merger, the Unity board
first concluded that GraphOn satisfied, or by the passage of time prior to the
merger or upon its consummation would satisfy, the fair market value requirement
and, further, would also satisfy all of the acquisition criteria, as set forth
in the sixth paragraph under "--Background of Merger" above, excluding only the
opportunity for acquiring operating control of GraphOn in view of the
unwillingness of GraphOn's management to relinquish such control and the Unity
board's lack of expertise in the software industry. The Unity board, however,
did not find it practicable to, and did not, quantify or otherwise attempt to
assign relative weight to each of the several acquisition criteria considered in
reaching its determination.
 
    The Unity board took note of the financial condition of GraphOn as set forth
in its financial statements and related notes included elsewhere in this joint
proxy statement/prospectus and the "going concern assumptions" discussed in such
notes. The Unity board was cognizant of GraphOn's need for additional financing
as expressed in such assumptions but, following discussions with GraphOn's
management and with Spencer Trask, concluded that, in addition to the
approximate $4,406,000 that would be made available to GraphOn through its
projected private placement, Unity's cash resources of approximately $5,400,000,
which would become accessible to GraphOn upon completion of the merger, would
satisfy GraphOn's capital needs for at least two years thereafter.
 
    The Unity board also took note of the fact that, if the proposed merger with
GraphOn was not completed, Unity would be liquidated and its net assets
(estimated at $5.28 per common share) distributed to public Unity stockholders.
 
    For the reasons set forth above, the Unity board has determined that the
merger is in the best interests of Unity and the Unity stockholders.
Consequently, the Unity board has unanimously approved and adopted the merger
agreement and recommends that the Unity stockholders vote FOR approval and
adoption of the merger agreement and the merger which it contemplates.
 
    The Unity board determined not to secure an opinion from a recognized
investment banking firm to the effect that the terms of the merger transaction
are fair from a financial point of view to the public Unity stockholders. The
Unity board does not believe that the terms of the merger give rise to any
inherent conflict of interest between Unity's executive officers and directors
and the public Unity stockholders, given the fact that such executive officers
and directors will receive no benefit from the merger that would not otherwise
be available to the public Unity stockholders as a whole. Further, the Unity
board noted that none of Unity's current executive officers or directors were to
become salaried employees of Unity subsequent to the completion of the merger
and, in any event, the merger could be effected only if approved by a vote of a
majority in interest of all public Unity stockholders.
 
    GRAPHON.  In considering the merger, the GraphOn board noted that the merger
would afford GraphOn access to approximately $5,400,000 in cash through its
acquisition, by virtue of the merger, of Unity's net assets, without the
anticipated cost and uncertainties attendant to GraphOn's own public offering of
securities and the possibility that any such offering might not be successfully
consummated in view of then prevailing market conditions or, alternatively, the
negotiation and uncertain consummation of commercial lending arrangements.
 
    The GraphOn board also took into account the overhang on the market of the
outstanding but unexercised Unity warrants issued in the Unity IPO and the
potentially depressive effect of such overhang on the market price of the Unity
common stock subsequent to the completion of the merger. The GraphOn board
concluded that the possibility that the Unity IPO warrants would be exercised at
some time prior to their scheduled expiration in November 2002, resulting in
gross proceeds from such exercises
 
                                       12
<PAGE>
of approximately $16,250,000, offset the risk of such market overhang. In making
such determination, the GraphOn board took note in these regards of the fact
that the respective exercise prices of the Unity IPO warrants were in excess of
the price paid by many of the GraphOn shareholders for their respective
interests in GraphOn and, as such, were anti-dilutive to these GraphOn
shareholders. In addition, the GraphOn board also noted that the current public
market for Unity common stock would afford potential liquidity for the Unity
common stock to be acquired by the GraphOn shareholders in exchange for the
GraphOn common stock in the merger.
 
    After careful consideration, the GraphOn board determined not to secure an
opinion of an independent investment banker or other financial advisor to the
effect that the merger would be fair, from a financial point of view, to the
GraphOn shareholders due, in part, to the fact that the GraphOn board does not
believe that the terms of the merger give rise to any inherent conflict of
interest between GraphOn's executive officers, directors and principal
shareholders and GraphOn shareholders other than as described in "--Interests of
Certain Persons in the Merger."
 
    The GraphOn board has determined that the merger is in the best interests of
GraphOn and the GraphOn shareholders. Consequently, the GraphOn board,
unanimously has approved and adopted the merger agreement and recommends that
the GraphOn shareholders vote FOR approval and adoption of the merger agreement
and the merger which it contemplates.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
    As contemplated by the merger agreement, John Cattier, Barry Ridings and
Norman Leben, each presently a member of the Unity board, will resign
immediately prior to the effective time. Lawrence Burstein, presently a member
of the Unity board, will continue as a director of Unity. Immediately following
the merger, Unity has agreed to cause Walter Keller, Thomas A. Bevilacqua,
[           ] each currently a member of the GraphOn board (such persons being
hereinafter referred to as the "designated directors"), to be elected to the
Unity board. The designated directors, together with Mr. Burstein, will comprise
the members of the Unity board subsequent to the effective time and,
consequently, will then control the business and affairs of Unity. The
designated directors hold in the aggregate 2,930,688 shares of GraphOn common
stock and warrants to purchase GraphOn common stock, which will be exchanged for
an aggregate of 1,634,151 shares of Unity merger stock and warrants to purchase
Unity common stock. See "Principal Shareholders of GraphOn."
 
                                       13
<PAGE>
CERTAIN TAX CONSEQUENCES OF THE MERGER
 
    The merger is intended to be a "reorganization" within the meaning of
Section 368(a) of the Internal Revenue Code of 1986. As a consequence, (i)
neither Unity nor GraphOn will recognize any gain or loss in the merger and (ii)
neither the Unity stockholders nor the GraphOn shareholders will recognize any
gain or loss in the merger, except for tax payable by GraphOn shareholders
because of cash received instead of fractional shares of Unity common stock.
 
    Cooperman Levitt Winikoff Lester & Newman, P.C., as counsel to Unity, has
rendered to Unity an opinion dated as of the date of this joint proxy
statement/prospectus to the effect that the merger will be treated, for federal
income tax purposes, as a "reorganization" within the meaning of Section 368(a)
of the code.
 
    Brobeck, Phleger & Harrison LLP, as counsel to GraphOn, has rendered to
GraphOn an opinion dated as of the date of this joint proxy statement/prospectus
to the effect that the merger will be treated, for federal income tax purposes,
as a "reorganization" within the meaning of Section 368(a) of the code.
 
    THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED FOR GENERAL INFORMATION ONLY
AND IS BASED UPON PRESENT LAW. EACH UNITY AND GRAPHON SHAREHOLDER SHOULD CONSULT
HIS OR HER TAX ADVISOR AS TO THE SPECIFIC TAX CONSEQUENCES OF THE MERGER TO HIM
OR HER, INCLUDING THE APPLICATION AND EFFECT OF FEDERAL, STATE, LOCAL AND OTHER
TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES IN FEDERAL LAW OR OTHER TAX LAWS.
 
THE MERGER AGREEMENT
 
    GENERAL.  The merger agreement provides that, at the effective time, each
then outstanding share of GraphOn common stock will be converted into the right
to immediately receive approximately .5576 of a share of Unity Common stock, or
an aggregate of approximately 9,124,543 shares of Unity common stock. The
exchange ratio was established through arms-length negotiations between Unity
and GraphOn.
 
    The merger agreement further provides that, at the effective time, GraphOn
will be merged with and into Unity. The certificate of incorporation of Unity,
as the surviving corporation, will be amended at the effective time to change
Unity's name to "GraphOn Corporation."
 
    Upon completion of the merger and assuming none of the GraphOn shareholders
exercise their appraisal rights, the GraphOn shareholders will own approximately
83.0% of the then outstanding shares of Unity common stock. Giving effect to the
exercise of all Unity exchange options, Unity merger warrants, Unity IPO
warrants, Unity directors' warrants, the Unity Underwriters' IPO securities, and
the Class A redeemable common stock purchase warrant to be issued to Spencer
Trask, a maximum of an additional 4,598,901 shares of Unity common stock will be
issuable upon completion of the merger. On such a fully diluted basis, the
GraphOn shareholders would collectively own a maximum of approximately 65.4% of
the then outstanding Unity common stock.
 
    None of the shares of Unity common stock will be converted or otherwise
modified in the merger and all of such shares will continue to be outstanding
capital stock of Unity after the effective time.
 
    REPRESENTATIONS AND WARRANTIES.  The merger agreement contains various
representations and warranties of GraphOn and Unity relating to, among other
things:
 
    - each of Unity's and GraphOn's organization and similar corporate matters;
 
    - each of Unity's and GraphOn's capital structure;
 
    - the authorization, execution, delivery, performance and enforceability of
      the merger agreement and related documentation;
 
    - the absence of any governmental or regulatory authorization, consent or
      approval to complete the merger;
 
                                       14
<PAGE>
    - the documents and reports filed by Unity with the SEC and the accuracy of
      the information contained in such documents or reports;
 
    - the absence of certain liabilities;
 
    - the absence of certain material events or changes;
 
    - litigation;
 
    - in the case of GraphOn, rights to use of its intellectual property and the
      functional compliance of its computer software;
 
    - the accuracy of the information provided by GraphOn and Unity with respect
      to the registration statement to be filed by Unity in connection with
      resales of shares of Unity merger stock by GraphOn shareholders subsequent
      to the merger and this joint proxy statement/prospectus;
 
    - compliance with laws and material agreements;
 
    - taxes;
 
    - retirement and other employee benefit plans and matters relating to the
      Employee Retirement Income Security Act of 1974, as amended;
 
    - certain accounting matters;
 
    - financial statements; and
 
    - the absence of certain labor controversies.
 
    CERTAIN COVENANTS.  Pursuant to the merger agreement, GraphOn and Unity have
agreed with the other that, during the period from the date of the merger
agreement until the effective time, except as permitted by the merger agreement
(including those provisions set forth or described in this joint proxy
statement/prospectus) or as consented to in writing by the other, each will:
 
    - conduct its business in the ordinary and usual course and consistent with
      past practice;
 
    - not split, combine or reclassify its outstanding capital stock or declare
      any dividend or distribution;
 
    - not issue, sell, pledge or dispose of any additional shares, or any
      options or rights to acquire additional shares, of capital stock, other
      than
 
    - in connection with the exercise of outstanding options or warrants, and
 
    - in the case of GraphOn it may
 
     - grant options to acquire shares of GraphOn common stock to both present
       and future employees under GraphOn's 1998 stock option/stock issuance
       plan;
 
     - offer and sell shares of GraphOn common stock in one or more private
       transactions at a price of not less than $1.00 per share to an aggregate
       maximum of $4,175,000 and may issue warrants to acquire shares of GraphOn
       common stock in customary amounts to placement agents who facilitate such
       sales;
 
     - issue shares of GraphOn common stock as well as warrants to purchase
       shares of GraphOn common stock to non-affiliated persons and entities for
       the purposes of purchasing or licensing technology which, in the
       reasonable judgment of GraphOn's board, is necessary or desirable for
       GraphOn's growth and development; and
 
     - issue up to an aggregate maximum of 100,000 shares of GraphOn common
       stock to entities which currently provide services to GraphOn for
       services rendered;
 
    - not redeem any shares of capital stock except as permitted by the terms of
      such securities;
 
                                       15
<PAGE>
    - not acquire or dispose of any material assets or properties other than in
      the ordinary course of business;
 
    - preserve the goodwill and business relationships with its suppliers,
      distributors, customers and others;
 
    - confer on a regular basis with the other on material operational matters;
 
    - in the case of Unity, file with the SEC all forms, statements, reports and
      documents required to be filed pursuant to the Exchange Act; and
 
    - prior to the effective time, afford each other reasonable access during
      normal business hours to its properties, books, contracts, commitments and
      records.
 
    NO SOLICITATION OF OTHER TRANSACTIONS.  The merger agreement provides that
GraphOn and its officers, directors, representatives and agents will not solicit
any proposal or offer to acquire all or any substantial part of the business or
capital stock of GraphOn from any person other than Unity. In this regard,
GraphOn has agreed that any person inquiring as to the availability of the
business or shares of capital stock of either GraphOn or any of its subsidiaries
or making an offer therefor will be told that GraphOn is bound by the provisions
of the merger agreement. Each of GraphOn and its officers, directors,
representatives and agents further agreed to advise Unity promptly of any such
inquiry or offer. The merger agreement also provides for similar restrictions on
Unity and its officers, directors, representatives and agents.
 
    NO INDEMNIFICATION.  The merger agreement does not provide for any
indemnification to either GraphOn or Unity for any costs or expenses, judgments,
fines, losses, claims, damages, liabilities and amounts paid in settlement
arising out of, relating to or in connection with any misrepresentation or
breach of representations, warranties or covenants contained in the merger
agreement.
 
    CONDITIONS TO THE MERGER.  The respective obligations of Unity and of
GraphOn to complete the merger are subject to a number of conditions, including,
but not limited to:
 
    - the merger agreement shall have been approved and adopted by the Unity
      stockholders, and the holders of no more than 19.99% in interest of the
      Unity common stock held by public Unity stockholders shall have voted
      against the merger and affirmatively requested conversion of their shares
      of Unity common stock into cash;
 
    - the merger shall have been approved and adopted by the GraphOn
      shareholders;
 
    - the charter amendment shall have been approved and adopted by the Unity
      stockholders;
 
    - the registration statement shall have become effective and no stop order
      suspending such effectiveness shall have been issued and remain in effect;
 
    - no preliminary or permanent injunction or other order or decree by any
      federal or state court or any action by any state or federal governmental
      agency preventing the completion of the merger shall have been issued or
      taken and remain in effect; and
 
    - all consents, orders and approvals legally required shall have been
      obtained and be in effect at the effective time.
 
    In addition to the conditions set forth above, the obligations of Unity to
complete the merger are subject to the following conditions:
 
    - GraphOn shall have performed in all material respects its agreements
      contained in the merger agreement and all representations and warranties
      of GraphOn contained in the merger agreement shall be true and correct in
      all material respects on and as of the date made and the closing date;
 
                                       16
<PAGE>
    - the receipt of written opinions from counsel to and independent public
      accountants of GraphOn and counsel to Unity as to certain matters;
 
    - the absence of material adverse changes in the business, operations,
      properties, assets, condition (financial or other), results of operations
      or prospects of GraphOn;
 
    - GraphOn's outstanding securities shall be unchanged in amount except as
      contemplated by the merger agreement;
 
    - the officers, directors and principal shareholders of GraphOn ("GraphOn
      principals") shall have executed agreements pursuant to which they will
      agree for a period of six months following the effective date not to sell,
      transfer or otherwise dispose of any shares of Unity common stock acquired
      in the merger other than for dispositions to family members who consent to
      the same restrictions (the "lock-up");
 
    - each of the holders of the private placement shares shall be subject to
      the lock-up;
 
    - the GraphOn principals shall have executed an agreement pursuant to which,
      for a period of three years following the effective date, they agree to
      vote their shares of Unity common stock in favor of a slate of directors
      of Unity which includes one designee of the current Unity board, and the
      remaining nominees being designees of the GraphOn principals (the "voting
      agreement"); and
 
    - the holders of no greater than 10% in the aggregate in interest of GraphOn
      common stock shall have perfected their statutory dissenters' rights with
      respect to the merger.
 
    In addition, the obligations of GraphOn to effect the merger are subject to
the following conditions:
 
    - Unity shall have performed in all material respects its agreements
      contained in the merger agreement and the representations and warranties
      of Unity contained in the merger agreement shall be true and correct in
      all material respects on and as of the date made and the closing date;
 
    - the receipt of written opinions from counsel to and independent public
      accountants of Unity and counsel to GraphOn as to certain matters;
 
    - the absence of material adverse changes in the business, operations,
      properties, assets, condition or prospects of Unity and Unity shall have
      engaged in no business activity since its IPO other than seeking to effect
      a merger;
 
    - Unity shall have at the closing date at least an aggregate of $6,000,000
      in cash or cash equivalents after giving effect to the payment on the
      closing date of all expenses incurred by Unity attendant to the
      transactions contemplated by the merger agreement (including, but not
      limited to, the fees and expenses of Unity's attorneys and accountants)
      and before giving effect to any payments required to be paid to Unity
      stockholders exercising their conversion rights under Unity's certificate
      of incorporation;
 
    - Unity's outstanding securities shall be unchanged in amount except as
      contemplated by the merger agreement;
 
    - the officers, directors and principal stockholders of Unity ("Unity
      principals") shall be subject to the lock-up;
 
    - the Unity principals shall have executed the voting agreement whereby they
      will agree to vote their shares in favor of the election of an agreed-upon
      slate of directors for a period of three years;
 
    - the holders of no greater than 19.99% in the aggregate in interest of the
      Unity common stock held by Unity's public stockholders shall have
      exercised their conversion rights under Unity's certificate of
      incorporation;
 
                                       17
<PAGE>
    - the officers and directors of Unity shall have resigned their respective
      positions as officers and directors of Unity (except that Lawrence
      Burstein shall resign only as an officer of Unity); and
 
    - the holders of no greater than 10% in the aggregate in interest of Unity
      common stock shall have perfected their statutory dissenters' rights with
      respect to the merger.
 
    TERMINATION.  The merger agreement may be terminated prior to the closing
date:
 
    - at any time by mutual consent of the boards of Unity and of GraphOn;
 
    - by either GraphOn or Unity after June 30, 1999, if the merger shall not
      have been consummated on or before such date (so long as the party
      terminating has not breached its obligations under the merger agreement);
 
    - unilaterally by Unity
 
     - if GraphOn materially breaches any material representation or warranty of
       GraphOn set forth in the merger agreement,
 
     - upon GraphOn's willful failure to comply with or satisfy any material
       covenant or condition of GraphOn contained in the merger agreement,
 
     - upon the occurrence of an event having a material adverse effect on the
       business, properties, assets, condition or results of operations of
       GraphOn or on its ability to consummate the merger or
 
     - if GraphOn shareholders fail to approve the merger agreement at the
       GraphOn meeting; or
 
    - unilaterally by GraphOn
 
     - if Unity materially breaches any material representation or warranty of
       Unity set forth in the merger agreement,
 
     - upon Unity's willful failure to comply with or satisfy any material
       covenant or condition of Unity contained in the merger agreement,
 
     - upon the occurrence of an event having a material adverse effect on the
       business, properties, assets, condition or results of operations of Unity
       or on its ability to consummate the merger or
 
     - if Unity stockholders fail to approve the merger at the Unity meeting.
 
    In the event of termination of the merger agreement by either GraphOn or
Unity as provided above, the merger agreement shall become void and there will
be no further obligation on the part of any of GraphOn or Unity, other than
preserving the confidentiality of confidential information of the other provided
in connection with the merger.
 
    AMENDMENT AND WAIVER.  At any time prior to the effective time, GraphOn or
Unity may
 
    - extend the time for the performance of any of the obligations or other
      acts to be performed by the other pursuant to the merger agreement;
 
    - waive any inaccuracies in the representations and warranties by the other
      contained in the merger agreement or in any other document delivered
      pursuant to the merger agreement; and
 
    - waive compliance with any of the agreements of the other or conditions
      precedent to their respective obligations contained in the merger
      agreement.
 
    Subject to applicable law, the merger agreement may be amended at any time
before or after its approval by the Unity stockholders or the GraphOn
shareholders by the written agreement of GraphOn and Unity. Under applicable
law, neither GraphOn nor Unity may amend the merger agreement subsequent to
obtaining approval of their respective shareholders if such amendments would
 
                                       18
<PAGE>
    - alter or change the amount or kind of shares, securities, cash, property
      and/or rights to be received in exchange for shares of such corporation;
 
    - alter or change any term of the certificate of incorporation of Unity
      following the merger; or
 
    - alter or change any of the terms and conditions of the merger agreement if
      such alteration or change would adversely affect the Unity stockholders or
      the GraphOn shareholders.
 
ABSENCE OF CERTAIN REGULATORY FILINGS AND APPROVALS
 
    The merger is not subject to the requirements of the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, and the rules and regulations thereunder,
which provide that certain merger transactions may not be consummated until
required information and materials have been furnished to the Antitrust Division
of the Department of Justice and the Federal Trade Commission and certain
waiting periods have expired or been terminated.
 
RESTRICTIONS ON SALES BY AFFILIATES AND OTHER SHAREHOLDERS
 
    The 9,124,543 shares of Unity common stock and the Class A redeemable common
stock purchase warrants to be issued in the merger as well as the shares
underlying the GraphOn warrants are expected to be registered under the
Securities Act as of the effective time. In such event, all of these securities
will be freely transferable under the Securities Act. However, the merger
agreement provides that all of the current officers and directors of GraphOn,
the GraphOn principal shareholders and their respective affiliates, as well as
the holders of the private placement shares, will enter into an agreement not to
sell, pledge, transfer or otherwise dispose of any of their respective shares of
Unity merger stock for a period of six months from the effective time.
Thereafter, each such person may sell the balance, if any, of his, her or its
Unity merger stock at any time, subject to any restrictions imposed by law. The
executive officers and directors of Unity and the Unity principals and their
respective affiliates have agreed to identical restrictions.
 
ACCOUNTING TREATMENT
 
    The merger will be treated as a capital transaction equivalent to the
issuance of stock by GraphOn for Unity's net monetary assets of approximately
$6,000,000, net of a fee of up to $575,000 payable to Spencer Trask upon
consummation of the merger.
 
EXPENSES
 
    The merger agreement provides that, whether or not the merger is completed,
all expenses incurred in connection with the merger agreement and the merger
which it contemplates will be paid by the party incurring such expenses.
 
CONVERSION RIGHTS
 
    A condition to the completion of Unity's IPO, imposed upon Unity by the IPO
underwriters, was a requirement that Unity not proceed with any merger with an
operating business if 20% or more in interest of Unity common stock held by
public Unity stockholders request conversion of their respective shares into
cash and also vote against such merger. Consequently, each public Unity
stockholder as of the Unity record date will have the right until May   , 1999
(the "conversion notification date") to offer his or her shares of Unity common
stock to Unity for conversion to cash at an amount equal to approximately $5.28
per share (the "conversion value"). Any such request for conversion, once made,
may be withdrawn at any time up to and through the conversion notification date.
The conversion value is equal to the amount held in a trust account (inclusive
of any interest thereon) divided by the number of shares of Unity common stock
held by all public Unity stockholders, as determined by Unity and audited by its
independent public
 
                                       19
<PAGE>
accountants, calculated as of the Unity record date. If less than 20% in
interest of Unity common stock held by public Unity stockholders who vote
against approval of the merger also elect to have their shares of Unity common
stock converted into cash, and the merger is completed, Unity will convert into
cash shares of Unity common stock at the conversion value from those public
Unity stockholders who affirmatively requested such conversion and who actually
voted against approval of the merger. If 20% or more in interest of Unity common
stock held by public Unity stockholders actually vote against approval of the
merger and affirmatively request conversion of their shares of Unity common
stock, Unity will not proceed with the merger and will not convert such shares
into cash. In such event, Unity's certificate of incorporation requires that
Unity be liquidated.
 
    A public Unity stockholder wishing to exercise his or her conversion rights:
 
    - must deliver to Unity, prior to or on but in no event later than the
      conversion notification date, a written objection to the merger (the
      "notice of election"), which shall include a notice of his or her election
      to convert into cash his or her Unity common stock, his or her name and
      residence address, the number of shares of Unity common stock which he or
      she owns and demand for payment of the conversion value of his or her
      shares of Unity common stock which notice of election must be in addition
      to and separate from any proxy or vote against the merger and
 
    - must vote against the merger.
 
A vote against the merger, in person or by proxy, will in and of itself not
constitute a written objection to the merger satisfying the requirements for
exercise of the conversion rights. In addition, a proxy directing such vote for
an abstention, even if accompanied by a notice of election, will not meet the
requirements for exercise of the conversion rights. A public Unity stockholder
who elects to convert into cash his or her shares of Unity common stock may not
convert less than all of the shares of Unity common stock beneficially owned by
such shareholder as of the Unity record date. Public Unity stockholders who
timely file a notice of election and who vote their Unity common stock against
the merger are hereinafter referred to as "converting shareholders."
 
ALL NOTICES OF ELECTION SHOULD BE ADDRESSED TO UNITY FIRST ACQUISITION CORP.,
245 FIFTH AVENUE, NEW YORK, NEW YORK 10016; ATTN.: LAWRENCE BURSTEIN, PRESIDENT.
 
    Any public Unity stockholder whose shares are held in street name may
exercise his or her conversion rights by instructing his or her broker to
prepare and deliver a notice of election to Unity within the time frame and
containing the information set forth in the second paragraph above, except that
in lieu of setting forth the name and residence address of the public Unity
stockholder, it should recite the name and address of the applicable brokerage
firm and a statement to the effect that the notice of election is being
submitted on behalf of a customer whose shares are held in street name (without
identifying the customer). In addition, such public Unity stockholder should
instruct the broker to vote his or her street name shares against the merger.
 
    At the effective time, each converting shareholder will cease to have any of
the rights of a Unity stockholder, except the right to be paid the conversion
value for his or her shares of Unity common stock. To maintain his or her
position as a converting shareholder, a public Unity stockholder (or his or her
broker in the case of shares held in street name) must submit the certificate
representing his or her shares of Unity common stock to Unity or its transfer
agent as noted below. A notice of election may be withdrawn by a public Unity
stockholder (or his or her broker), with the written consent of Unity, prior to
20 days following the effective time.
 
    Within ten days after the date on which Unity stockholders approve the
merger, Unity will send written notice of such approval ("notice of approval of
merger"), including the per share conversion value, by certified or registered
mail to each shareholder of Unity who filed a notice of election and who voted
his or her shares against adoption of the merger.
 
                                       20
<PAGE>
    Within 20 days following the date of mailing of the notice of approval of
merger, converting stockholders must submit certificates representing their
shares of Unity common stock to Unity or its transfer agent. Within 30 days
following the date of mailing of the notice of approval of merger, Unity will
pay each converting stockholder who has submitted the certificates representing
his or her shares of Unity common stock to Unity or its transfer agent the
conversion value for such shares. ANY CONVERTING STOCKHOLDER WHO FAILS TO SUBMIT
HIS OR HER CERTIFICATES REPRESENTING UNITY COMMON STOCK WITHIN 20 DAYS FOLLOWING
THE DATE OF MAILING OF THE NOTICE OF APPROVAL OF MERGER SHALL LOSE HIS OR HER
CONVERSION RIGHTS.
 
APPRAISAL RIGHTS
 
    UNITY
 
    Pursuant to Section 262 of the DGCL, the holder of record of any shares of
Unity common stock who does not vote such holder's shares in favor of adoption
and approval of the merger may assert appraisal rights and elect to have the
"fair value" of such holder's shares of Unity common stock determined and paid
to such holder, provided that such holder complies with the requirements of
section 262 of the DGCL, summarized below. All references to and summaries of
the rights of the dissenting shareholders are qualified in their entirety by
reference to the text of section 262 of the DGCL which is attached to this joint
proxy statement/prospectus as Exhibit C.
 
    Any stockholder entitled to vote on the merger who desires that Unity
purchase shares of Unity common stock held by such stockholder (the "dissenting
shares") must not vote in favor of adoption and approval of the merger. Shares
of Unity common stock voted in favor of adoption and approval of the merger will
be disqualified as dissenting shares.
 
    Stockholders whose shares are not voted in favor of adoption and approval of
the merger and who, in all other respects, follow the procedures specified in
section 262, will be entitled to have their Unity common stock appraised by the
Delaware Court of Chancery and to receive payment of the "fair value" of such
shares, exclusive of any element of value arising from the accomplishment or
expectation of the merger, as determined by the Court. The procedures set forth
in section 262 must be strictly complied with. Failure to follow any such
procedures will result in a termination or waiver of appraisal rights under
section 262.
 
    Under section 262, a holder of Unity common stock electing to exercise
appraisal rights must:
 
        (1) Deliver to Unity, before taking of the vote on the merger, a written
    demand for appraisal of such holder's Unity common stock which reasonably
    informs Unity of the identity of the stockholder of record and that such
    record stockholder intends thereby to demand appraisal of such holder's
    shares. Such written demand is in addition to and separate from any proxy or
    vote with respect to the merger. Neither a vote against or abstention from
    voting with respect to the merger nor a proxy directing such vote will
    satisfy the requirement that a written demand for appraisal be delivered to
    Unity before the vote on the merger. Such written demand for appraisal
    should be delivered either in person to the Secretary of Unity at the Unity
    meeting on or before the vote on the merger or in person or by mail to the
    Secretary, prior to the Unity meeting, at 245 Fifth Avenue, New York, New
    York 10016.
 
        (2) Not vote in favor of, or consent in writing to, the merger. A
    failure to vote against the merger will not constitute a waiver of appraisal
    rights. However, a stockholder who signs and returns a proxy without
    expressly directing (by checking the applicable box on the proxy card
    enclosed herewith) that such stockholder's shares be voted against the
    merger or that an abstention be registered with respect to such shares of
    Unity common stock in connection with such merger will effectively have
    waived his or her appraisal rights as to those shares because, in the
    absence of express contrary instructions, such shares will be voted in favor
    of the merger. Accordingly, a stockholder who desires to perfect appraisal
    rights with respect to any shares must, as one of the procedural steps
    involved in such perfection,
 
                                       21
<PAGE>
    either (i) refrain from executing and returning the enclosed proxy card or
    voting in person in favor of Proposal No. 2 on such card, or (ii) check
    either the "Against" or the "Abstain" boxes next to such proposal on such
    card or vote in person against the merger or register in person an
    abstention with respect to such proposal.
 
    The written demand for appraisal must be made by or for the holder of record
of shares of Unity common stock. Accordingly, such demand must be executed by or
for such stockholder of record, fully and correctly, as such stockholder's name
appears on the stock certificates representing the shares. If the applicable
shares are owned of record in a fiduciary capacity, such as by a trustee,
guardian or custodian, execution of the demand should be made in such capacity,
and if the applicable shares are owned of record by more than one person, as in
a joint tenancy or tenancy in common, such demand should be executed by or for
all joint owners. An authorized agent, including one of two or more joint
owners, may execute the demand for appraisal for a stockholder of record.
However, the agent must identify the record owner(s) and expressly disclose the
fact that, in executing the demand, the agent is acting as agent for the record
owner(s).
 
    A record owner, such as a broker, who holds shares as nominee for other
persons may exercise appraisal rights with respect to the shares held for all or
less than all of such other persons. In such case, the written demand should set
forth the number of shares covered by it. Where no number of shares expressly is
mentioned, the demand will be presumed to cover all shares standing in the name
of such record owner.
 
    Within 10 days after the effective time, Unity is required to, and will,
notify each stockholder who has satisfied the foregoing conditions of the date
on which the effective time occurred and that appraisal rights are available
with respect to shares for which a demand has been submitted. Within 120 days
after the effective time, Unity, or any such stockholder who has satisfied the
foregoing conditions and otherwise is entitled to appraisal rights under section
262, may file a petition in the Court demanding a determination of the value of
the shares held by all stockholders entitled to appraisal rights. If no such
petition is filed, appraisal rights will be lost for all stockholders who
previously had demanded appraisal of their shares. Stockholders of Unity seeking
to exercise appraisal rights should not assume that Unity will file a petition
with respect to the appraisal of the value of their shares or that Unity will
initiate any negotiations with respect to the "fair value" of such shares.
Accordingly, such stockholders should regard it as their obligation to take all
steps necessary to perfect their appraisal rights in the manner prescribed in
section 262.
 
    Within 120 days after the date of the effective time, any stockholder who
has complied with the applicable provisions of section 262 will be entitled,
upon written request, to receive from Unity a statement setting forth the
aggregate number of shares not voted in favor of the merger and with respect to
which demands for appraisal were received by Unity, and the number of holders of
such shares. Such statement must be mailed within ten days after the written
request therefor has been received by Unity or within ten days after expiration
of the period for delivery of demands for appraisal, whichever is later.
 
    If a petition for an appraisal is timely filed, at the hearing on such
petition the Court will determine the stockholders of Unity entitled to
appraisal rights. After determining the stockholders entitled to an appraisal,
the Court will appraise the value of the shares of Unity common stock owned by
such stockholders, determining the "fair value" thereof exclusive of any element
of value arising from the accomplishment or expectation of the merger. The Court
will direct payment by Unity of the fair value of such shares together with a
fair rate of interest, if any, on such fair value to stockholders entitled
thereto upon surrender to Unity of Unity stock certificates. The costs of the
proceeding may be determined by the Court and taxed upon the parties as the
Court deems equitable in the circumstances. Upon application of a stockholder,
the Court may, in its discretion, order that all or a portion of the expenses
incurred by any
 
                                       22
<PAGE>
stockholder in connection with an appraisal proceeding, including, without
limitation, reasonable attorneys' fees and fees and expenses of experts, be
charged pro rata against the value of all the shares entitled to appraisal.
 
    Although Unity believes that the merger is fair, no representation is made
as to the outcome of the appraisal of fair value as determined by the Court and
stockholders should recognize that such appraisal could result in a
determination of a value higher or lower than, or the same as, the conversion
value. Moreover, Unity does not presently anticipate offering more than the
conversion value to any stockholder exercising appraisal rights and reserves the
right to assert, in any appraisal proceeding, that, for purposes of section 262,
the "fair value" of a share of Unity common stock is less than the conversion
value. In determining the "fair value" of shares of Unity common stock, the
Court is required to take into account all relevant factors. Therefore, such
determination could be based upon considerations other than, or in addition to,
the price paid for shares of Unity common stock, including, without limitation,
the market value of shares and the asset values and earning capacity of Unity.
In WEINBERGER V. UOP, INC., ET AL., 457 A.2d 701,713 (Del. 1983), the Delaware
Supreme Court stated, among other things, that "proof of value by any techniques
or methods which are generally considered acceptable in the financial community
and otherwise admissible in court" should be considered in an appraisal
proceeding. Section 262 provides that "fair value" is to be "exclusive of any
element of value arising from the accomplishment or expectation of the merger."
In WEINBERGER, the Delaware Supreme Court held that "elements of future value,
including the nature of the enterprise, which are known or susceptible of proof
as of the date of the merger and not the product of speculation, may be
considered." Id.
 
    Any holder of shares of Unity common stock who has demanded an appraisal in
compliance with section 262 will not, after the effective time, be entitled to
vote such holder's shares for any purpose nor be entitled to the payment of
dividends or other distributions on such shares (other than those payable to
stockholders of record as of a date prior to the effective time).
 
    If (i) no petition for an appraisal is filed within 120 days after the date
of the effective time or (ii) a holder of shares delivers to Unity a written
withdrawal of such holder's demand for an appraisal and an acceptance of the
merger, either within 60 days after the effective time or with the written
approval of Unity thereafter (which Unity reserves the right to give or
withhold, in its sole discretion), then the right of such stockholder to an
appraisal will cease and such stockholder will remain a stockholder of Unity. No
appraisal proceeding in the Court will be dismissed as to any stockholder
without the approval of the Court, which approval may be conditioned on such
terms as the Court deems just.
 
    Also see "--Conversion Rights" above.
 
    GRAPHON
 
    If the merger agreement is approved by the required consent or vote of
GraphOn shareholders and is not abandoned or terminated, GraphOn shareholders
who did not consent to or vote in favor of the merger may, by complying with
Chapter 13 of the California Corporations Code (the "CCC"), be entitled to
dissenters' rights as described therein. The record holders of the shares of
GraphOn common stock that elect to exercise their dissenters' rights with
respect to the merger are referred to herein as "GraphOn dissenting
shareholders," and the shares of GraphOn common stock with respect to which they
exercise dissenters' rights are referred to herein as "GraphOn dissenting
shares." If a GraphOn shareholder has a beneficial interest in shares of GraphOn
common stock that are held of record in the name of another person, such as a
broker or nominee, and such GraphOn shareholder desires to perfect whatever
dissenters' rights such beneficial GraphOn shareholder may have, such beneficial
GraphOn shareholder must act promptly to cause the holder of record timely and
properly to follow the steps summarized below.
 
    A VOTE IN FAVOR OF THE MERGER BY A GRAPHON SHAREHOLDER WILL RESULT IN A
WAIVER OF SUCH HOLDER'S RIGHT TO DISSENTERS' RIGHTS.
 
                                       23
<PAGE>
    The following discussion is not a complete statement of the CCC relating to
dissenters' rights, and is qualified in its entirety by reference to Chapter 13
of the CCC attached to this joint proxy statement/ prospectus as Exhibit D and
incorporated herein by reference. This discussion and Chapter 13 of the CCC
should be reviewed carefully by any holder who wishes to exercise statutory
dissenters' rights or wishes to preserve the right to do so, since failure to
comply with the required procedures in a timely manner will result in the loss
of such rights.
 
    A GraphOn shareholder who wishes to become a GraphOn dissenting shareholder
must:
 
    - not vote any of the shares he or she wishes to qualify as GraphOn
      dissenting shares in favor of the merger;
 
    - make written demand upon GraphOn, not later than 30 days after the date on
      which the notice of approval by the outstanding shares described below was
      mailed, setting forth in his or her demand the number and class of shares
      of which he or she demands that GraphOn purchase and a statement by such
      shareholder as to what he or she believes the fair market value of such
      shares to have been as of the day before the announcement of the merger;
      and
 
    - submit for endorsement, within 30 days after the date on which the notice
      of approval of the merger by the GraphOn shareholders described below was
      mailed to such shareholder, at the principal office of GraphOn, the
      certificates representing any shares for which demand for purchase is
      being made with a statement specifying that such shares are dissenting
      shares.
 
Neither a vote against approval of the merger nor the giving of a proxy
directing a negative vote will be sufficient to constitute the demand described
in clause (ii) above.
 
    Written demands, notices or other communications which a GraphOn shareholder
wishes to send to GraphOn concerning the exercise of dissenters' rights should
be addressed to:
 
                                    GraphOn Corporation
                                  150 Harrison Avenue
                                  Campbell, CA 95008
                                  Attention: Walt Keller
 
    Within ten days after the date of the approval of the merger, GraphOn shall
mail a notice of the approval of the merger to each GraphOn shareholder who has
not voted to approve the merger, together with a brief description of the
procedure to be followed if the shareholder wishes to exercise his or her
dissenters' rights and a statement of the price determined to represent the fair
market value of the dissenting shares. If the GraphOn dissenting shareholder and
GraphOn agree upon the price and that the shares qualify as GraphOn dissenting
shares, the GraphOn dissenting shareholder will be entitled to the agreed upon
price plus the legal rate of interest on judgments from the date of such
agreement, subject to surrender, by the GraphOn dissenting shareholder, of his
or her certificates representing the GraphOn dissenting shares to GraphOn. If
the dissenting shareholder and GraphOn fail to agree upon the fair market value
of the GraphOn dissenting shares or whether the shares qualify as GraphOn
dissenting shares, the GraphOn dissenting shareholder may file a complaint with
the California Superior Court within six months after the date on which notice
of the approval of the merger is mailed to shareholders requesting that the
court determine the fair market value of the GraphOn dissenting shares and/or
whether the shares qualify as GraphOn dissenting shares.
 
    Under the provisions of Section 500 et seq. and Section 1306 of the CCC, a
California corporation is legally prohibited from purchasing shares of stock
through the payment of cash or other property, even if all dissenters rights
conditions are fulfilled, unless the corporation satisfies certain financial
conditions. Due to these legal restrictions, GraphOn may not be legally able to
repurchase all or any GraphOn dissenting shares of the dissenting shareholders
for cash following the merger.
 
                                       24
<PAGE>
    To the extent that the above-mentioned provisions of the CCC prohibit cash
payments to holders of GraphOn dissenting shares who exercise and perfect their
dissenters' rights, such GraphOn dissenting shareholders will become creditors
of GraphOn for an amount equal to the fair market value of their shares as to
which the dissenters' rights are perfected plus interest accrued thereon at the
legal rate on judgments until the date of payment. The rights of such GraphOn
dissenting shareholders, however, will be subordinate to the rights of all other
creditors of GraphOn in any liquidation proceeding.
 
    GraphOn dissenting shareholders considering seeking appraisal should be
aware that the fair value of their shares of GraphOn common stock, as determined
under Chapter 13 of the CCC, could be more than, the same as or less than the
amount that would be paid to them pursuant to the merger agreement. The costs
and expenses of the appraisal proceeding will be determined by the court and
assessed against GraphOn unless the court determines that the GraphOn dissenting
shareholder did not act in good faith in demanding payment of the fair value of
his shares, in which case such costs and expenses may be assessed against the
GraphOn dissenting shareholder.
 
OPERATIONS AFTER THE MERGER
 
    DIRECTORS AND EXECUTIVE OFFICERS.  In accordance with the merger agreement,
three of the four current members of the Unity board will resign immediately
prior to the effective time. Immediately following the merger, one of the
current directors of Unity and         current directors of GraphOn will become
the sole members of the Unity board. In addition, all of Unity's executive
officers will resign as of the effective time, to be replaced by GraphOn's
current executive officers.
 
    The members of the post-merger Unity board will be classified into three
classes, one of which is elected at each annual meeting of stockholders to hold
office for a three-year term and until successors of such class have been
elected and qualified. The respective members of each class of the post-merger
Unity board are set forth below.
 
    - Class I: Walter Keller and Thomas A. Bevilacqua (3 year initial term);
 
    - Class II:           and           (2 year initial term); and
 
    - Class III:           ,           and Lawrence Burstein (1 year initial
      term).
 
    Each of such persons is currently a director of GraphOn, except Mr.
Burstein, who is currently a director of Unity.
 
    DIVIDENDS.  Unity does not presently intend to pay any cash dividends as all
available cash will be utilized to further the growth of Unity's business
subsequent to the effective time for the proximate future thereafter. The
payment of any subsequent cash dividends will be in the discretion of the Unity
board and will be dependent upon Unity's results of operations, financial
condition and other factors deemed relevant by the Unity board.
 
                                       25
<PAGE>
                           PRICE RANGES OF SECURITIES
 
UNITY
 
    Unity's common stock, Class A redeemable warrants and Class B redeemable
warrants are each quoted on the OTC Bulletin Board under the symbols UFAC, UFACW
and UFACZ, respectively.(1) The following table sets forth the range of the high
and low bid quotations of such securities on the OTC Bulletin Board for the
periods indicated:
<TABLE>
<CAPTION>
                                                                                                                CLASS A REDEEMABLE
                                                                                  COMMON STOCK                       WARRANTS
                                                                               -----------------               --------------------
THREE MONTHS ENDED                                                         HIGH                  LOW                   HIGH
- -----------------------------------------------------------------         ------                ------                ------
<S>                                                                <C>        <C>        <C>        <C>        <C>        <C>
January 31, 1997.................................................         $4  3/4        $       4  3/8        $       1  1/4
April 30, 1997...................................................          4  13/16              4  3/8                1  1/8
July 31, 1997....................................................          4  7/8                4  7/16               1  1/4
October 31, 1997.................................................          4  29/32              4  5/8                   13/16
January 31, 1998.................................................          5  1/2                5                     1
April 30, 1998...................................................          5  3/16               4  7/8                1
July 31, 1998....................................................          5  5/16               4  7/8                1  1/4
October 31, 1998.................................................          5  1/16               4  3/4                1
January 31, 1999.................................................          5  9/32               4  23/32                 7/8
April 30, 1999 (through April 9).................................          5  5/16               5  7/32               1  7/16
 
<CAPTION>
 
                                                                                                CLASS B REDEEMABLE WARRANTS
 
                                                                                                      ---------------
THREE MONTHS ENDED                                                         LOW                   HIGH                  LOW
- -----------------------------------------------------------------          ---                  ------                 ---
<S>                                                                <C>        <C>        <C>        <C>        <C>        <C>
January 31, 1997.................................................  $          7/8               $1  1/4                $  3/4
 
April 30, 1997...................................................             3/8                   7/8                   1/4
 
July 31, 1997....................................................             5/16                  7/8                   1/4
 
October 31, 1997.................................................             1/4                   7/16                  1/8
 
January 31, 1998.................................................             3/8                   9/16                  1/4
 
April 30, 1998...................................................             5/8                   1/2                   1/4
 
July 31, 1998....................................................             1/2                   7/16                  3/8
 
October 31, 1998.................................................             1/32                  13/32                 1/16
 
January 31, 1999.................................................             3/64                  1/2                   1/8
 
April 30, 1999 (through April 9).................................             7/8                   3/4                   1/2
 
</TABLE>
 
- ------------------------
 
(1) Unity's securities began separate trading on November 21, 1996.
 
    The above quotations represent prices between dealers and do not include
retail markup, markdown or commission. They do not necessarily represent actual
transactions.
 
    On February 1, 1999 (the last trading day prior to the public announcement
of the execution of the merger agreement), the last reported closing bid prices
of Unity common stock, Class A redeemable warrants and Class B redeemable
warrants were $5 13/64, $ 7/8 and $ 1/2, respectively. On that date, there were
37 recordholders of Unity common stock, although Unity believes that there are
other persons who are beneficial owners of shares of Unity common stock held in
street name.
 
GRAPHON
 
    There is not presently, nor has there been in the past, any trading market
for GraphOn common stock.
 
    On May   , 1999, there were approximately 195 recordholders of GraphOn
common stock.
 
                                       26
<PAGE>
                 SELECTED HISTORICAL FINANCIAL DATA OF GRAPHON
 
GRAPHON
 
<TABLE>
<CAPTION>
                                                 FOR THE YEAR ENDED
                                                    DECEMBER 31,
                                             ---------------------------
STATEMENT OF OPERATIONS DATA:                    1998           1997        1996(1)      1995(1)       1994(1)
- -------------------------------------------  -------------  ------------  -----------  ------------  ------------
<S>                                          <C>            <C>           <C>          <C>           <C>
                                                                                              (UNAUDITED)
Revenues...................................  $   2,124,200  $  1,926,100  $   594,800  $    588,117  $  1,096,910
Costs of Revenues..........................        344,200       463,300      335,600       213,502       349,693
                                             -------------  ------------  -----------  ------------  ------------
Gross Profit...............................      1,780,000     1,462,800      259,200       374,615       747,217
Operating Expenses:
    Selling and marketing..................      1,440,300       827,300      192,700            --            --
    General and administrative.............      1,208,900       324,700      218,900       388,637       646,656
    Research and development...............        840,200       190,500       41,700        58,979        67,150
                                             -------------  ------------  -----------  ------------  ------------
        Total Operating Expenses...........      3,489,400     1,342,500      453,300       447,616       713,806
                                             -------------  ------------  -----------  ------------  ------------
(Loss) Income from Operations..............     (1,709,400)      120,300     (194,100)      (73,001)       33,411
Other Income (Expense):
    Interest and other income..............          9,800         7,200        6,400            --            --
    Interest and other expense.............        (46,900)       (2,100)          --            --            --
    Other expense..........................        (16,500)           --           --            --            --
                                             -------------  ------------  -----------  ------------  ------------
(Loss) Income before Provision for Income
  Taxes....................................     (1,763,000)      125,400     (187,700)      (73,001)       33,411
                                             -------------  ------------  -----------  ------------  ------------
Provision for Income Taxes.................            800           900          800            --        15,369
                                             -------------  ------------  -----------  ------------  ------------
Net (Loss) Income..........................  $  (1,763,800) $    124,500  $  (188,500) $    (73,001) $     18,042
                                             -------------  ------------  -----------  ------------  ------------
                                             -------------  ------------  -----------  ------------  ------------
Pro forma (Loss) Income per share (2)......  $       (0.26) $       0.02  $     (0.03) $      (0.01) $         --
                                             -------------  ------------  -----------  ------------  ------------
                                             -------------  ------------  -----------  ------------  ------------
Weighted average common shares.............      6,762,667     6,000,000    6,000,000     6,000,000     6,000,000
                                             -------------  ------------  -----------  ------------  ------------
                                             -------------  ------------  -----------  ------------  ------------
</TABLE>
 
<TABLE>
<CAPTION>
BALANCE SHEET DATA:                                                          DECEMBER 31, 1998  DECEMBER 31, 1997
- ---------------------------------------------------------------------------  -----------------  -----------------
<S>                                                                          <C>                <C>
Total Assets...............................................................    $   6,544,500       $   733,300
Total Liabilities..........................................................        1,202,200           615,100
Shareholders' Equity.......................................................        5,342,300           118,200
</TABLE>
 
- ------------------------
 
(1) During the years ended December 31, 1996, 1995 and 1994, GraphOn was engaged
    in the business of manufacturing, marketing and selling computer terminal
    hardware in an industry significantly different from that in which it
    presently does business. See "Management's Discussion and Analysis of
    Financial Condition and Results of Operations of GraphOn--Overview."
 
(2) Pro forma (Loss) Income per share is reflected as if GraphOn had been a
    public company since inception.
 
                                       27
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                      AND RESULTS OF OPERATIONS OF GRAPHON
 
    The following description of GraphOn's financial condition and results of
operations should be read in conjunction with the information included in this
joint proxy statement/prospectus. The description contains certain
forward-looking statements that involve risks and uncertainties. GraphOn's
actual results could differ significantly from the results discussed in the
forward-looking statements as a result of certain of the risk factors set forth
below and elsewhere in this joint proxy statement/prospectus.
 
OVERVIEW
 
    GraphOn develops, markets, sells and supports server-based software that is
designed to enable a diverse range of desktop computers to access server-based
Windows and UNIX applications from any location, over fast or slow Internet
connections. GraphOn was incorporated in May 1982 and engaged in the development
and manufacture of hardware computer terminals. In 1995, GraphOn started to
transition from a hardware to a software manufacturer by working with three
independent software developers, with whom it entered into exclusive license
agreements calling for royalties aggregating 16.4%, 9.7%, 4.8% and 2.9% of net
revenues from sales of software products which contain the licensed technology
for the years 1997, 1998, 1999 and 2000, respectively. After December 31, 2000,
GraphOn has the option, under certain circumstances, to purchase the licensed
technology or exclusive rights to it. GraphOn and each software developer
tentatively have agreed to amend each of these agreements. Under the terms of
such proposed amendments, GraphOn will purchase the licensed technology for
aggregate payments of $172,231 and $348,000 payable in 1999 and 2000,
respectively.
 
    Before October 1996, while GraphOn was developing its server-based software
products, GraphOn's revenue was derived principally from the sale and repair of
hardware computer terminals. GraphOn discontinued selling hardware products in
1996 and now provides only return-to-factory repair for the installed customer
base. Software licensing revenue in 1996 was $72,900, representing only 12.3% of
GraphOn's revenue. Software revenue consists of licensing fees for products sold
and royalty payments from OEM agreements relating to GraphOn's software products
called GO-Global, GO-Joe and GO-Between, in addition to fees for training and
software maintenance. Consequently, GraphOn management does not consider
comparisons between 1997 and 1996 fiscal performance to be meaningful.
 
    In October 1996, Sun Microsystems licensed GO-Joe for distribution with its
network computers, GraphOn's server software for distribution with its UNIX
operating systems and GO-Global for use by its employees. GO-Global was released
for sale to customers other than Sun Microsystems in March 1997. In April 1998,
IBM licensed GO-Joe for distribution with its network computers and GraphOn's
server software for distribution with computers using its UNIX operating
systems. GO-Joe was released for sale to customers other than IBM in July 1998.
In December 1998, Corel licensed certain GraphOn software for distribution with
its WordPerfect Office Suite products.
 
    During 1997 and part of 1998, GraphOn concentrated its efforts on OEM
opportunities and strategic alliances to establish product acceptance. OEM
licensing revenue from the Sun Microsystems agreement accounted for
approximately 70.0% of revenue in 1997 and royalty revenue from the Sun
Microsystems, IBM and Corel agreements accounted for approximately 18.8%, 16.5%
and 20.6% of revenues, respectively, in 1998. GraphOn intends to continue to
commit significant financial and other resources toward its objective of
expanding its strategic OEM relationships and developing reseller channels. In
pursuit of this objective, in August 1998, GraphOn hired a Vice President of
Sales and two sales directors to create and develop GraphOn's reseller channel.
 
    In May 1998, GraphOn hired eight software engineers based in Bellevue,
Washington and in December 1998 added eight engineers in Concord, New Hampshire
in connection with the acquisition of Corel's jBridge technology. In February
1999, GraphOn hired a Chief Financial Officer. GraphOn has
 
                                       28
<PAGE>
more than tripled its headcount from 12 at December 31, 1997 to 43 at February
28, 1999. It is expected that the number of employees will increase following
the completion of the merger.
 
    Product license revenues are recognized upon shipment only if no significant
GraphOn obligations remain and collection of the resulting receivable is deemed
probable. When product licenses require product engineering development by
GraphOn, recognition of revenue is after delivery and customer acceptance of
contract milestones. Revenues for training are recognized when the services are
performed. Revenue from customer yearly maintenance fees, for ongoing customer
support and product updates are recognized equally over the term of the
contract, which typically is 12 months.
 
    GraphOn's limited operating history as a software developer and manufacturer
makes the prediction of future operating results difficult and unreliable.
Future operating results may fluctuate due to many factors, including GraphOn's
ability to attract and retain strategic partners, the degree and rate of growth
of the markets in which GraphOn competes and accompanying demand for GraphOn's
products, the level of product and price competition, and the ability of GraphOn
to establish and build its software product reseller channels.
 
YEAR ENDED DECEMBER 31, 1998 VERSUS YEAR ENDED DECEMBER 31, 1997
 
    REVENUES.  Total revenues for the year ended December 31, 1998 were
$2,124,200, an increase of 10.3% over the same period in 1997. The most
important contributing factor was a 10.4% increase in software-related revenues
to $1,971,000 in 1998 as compared to $1,785,000 in 1997. GraphOn's software
revenues have been derived primarily from two sources: GO-Global product sales
and OEM royalty payments for GO-Joe, GO-Global and GraphOn's server software.
Revenues from the Sun Microsystems OEM agreement represented 70.0% of total
revenue in 1997 and from OEM agreements with Sun Microsystems, IBM and Corel,
collectively, represented 67.0% of revenues in 1998.
 
    Revenues also include service fees from maintenance contracts and training
services. The maintenance program was started in June 1997 to provide product
updates and support from the time of purchase. It is expected that many of the
maintenance programs will be renewed by customers to assure continued product
updates and support. Service revenue was $116,000 in 1998, or 5.5% of revenue,
as compared to a nominal amount of revenue in 1997.
 
    COST OF GOODS SOLD.  Cost of goods sold consists primarily of royalties,
materials (manuals, media, packaging), expenses associated with product
maintenance and enhancements (software corrections and updates), and
amortization of capitalized researched and development expenses. Research and
development costs for new product development, after technological feasibility
is established, are treated as "capitalized software" on GraphOn's balance sheet
and subsequently expensed as cost of goods sold over the shorter of three years
or the remaining estimated life of the products, whichever produces the higher
expense for the period.
 
    Cost of goods sold was reduced to 16.2% of revenue in 1998, as compared to
24.1% in 1997. This primarily is attributed to the reduction in the royalty rate
paid to outside software developers under GraphOn's exclusive licensing
agreements.
 
    SALES AND MARKETING EXPENSES.  Sales and marketing expenses primarily
consist of salaries, sales commissions, travel expenses, trade show related
activities and promotional costs. Sales and marketing expenses increased 74.1%
to $1,440,300, or 67.8% of revenue, in 1998 from $827,300, or 43.0% of revenue,
in 1997. This increase primarily is attributable to the addition of sales and
marketing personnel and a substantial increase in trade show, promotional and
public relations activities. GraphOn expects that sales and marketing expenses
will continue to increase in dollar amounts, but decline as a percentage of
total revenues, as it continues to hire additional sales and marketing
personnel, establish reseller channels and expand promotional activities.
 
                                       29
<PAGE>
    GENERAL AND ADMINISTRATIVE.  General and administrative expenses primarily
consist of salaries and legal and professional services. In addition, GraphOn's
rent, utilities and administrative employee benefits are included in general and
administrative expenses. General and administrative expenses increased 272.3% to
$1,208,900, or 56.9% of revenue, in 1998, from $324,700, or 16.9% of revenue, in
1997. This increase primarily is attributed to legal services, hiring additional
administrative personnel and increased rent, utilities and benefit expenses
necessary to support expanding operations.
 
    RESEARCH AND DEVELOPMENT.  Research and development expenses consist
primarily of salaries and benefits to software engineers, supplies and payments
to contract programmers. Research and development expenses increased by 341.1%
to $840,200, or 39.6% of revenue, in 1998, from $190,500, or 9.9% of revenue, in
1997. GraphOn believes that a significant level of investment for research and
development is required to remain competitive and that such expenses are
expected to continue to increase over the foreseeable future.
 
    PROVISION FOR INCOME TAXES.  At December 31, 1998, GraphOn had approximately
$2.8 million in federal net operating loss carryforwards. The federal net
operating loss carryforwards will expire through 2018, if not utilized. In
addition, the Tax Reform Act of 1986 contains certain provisions that may limit
the net operating loss carryforwards available for use in any given period upon
the occurrence of certain events, including a significant change in ownership
interests. In 1998, GraphOn experienced a "change of ownership" as defined by
the provisions of the Tax Reform Act of 1986. As such, GraphOn's utilization of
its net operating loss carryforwards will be limited to approximately $400,000
per year until such carryforwards are fully utilized. To date, GraphOn has
utilized a portion of its net operating loss carryforwards to reduce its overall
income tax liability.
 
YEAR ENDED DECEMBER 31, 1997 VERSUS YEAR ENDED DECEMBER 31, 1996
 
    Before October 1996, while GraphOn was developing its server-based software
products, GraphOn's revenue was derived principally from the sale and repair of
hardware computer terminals. GraphOn discontinued selling hardware products in
1996 and now provides only return-to-factory repair for the installed customer
base. Software licensing revenue in 1996 was $72,900, representing only 12.3% of
revenue as compared to 92.7% in 1997. Accordingly, the comparison of the year
ended December 31, 1997 to the year ended December 31, 1996 is considered not
meaningful by management.
 
    REVENUES.  Total revenues for the year ended December 31, 1997 were
$1,926,100, an increase of 223.8% over the same period in 1996. GraphOn believes
the most important contributing factor was a $1,712,000 increase in
software-related revenues to $1,785,000 in 1997 versus $72,900 in 1996 due to
GraphOn's change from selling hardware products in 1996 to software products in
1997.
 
    COST OF GOODS SOLD.  Cost of goods sold was reduced to 24.1% of revenue in
1997, versus 50.4% in 1996. This reduction primarily is attributable to
GraphOn's change in products from hardware to software as discussed above.
 
    SALES AND MARKETING EXPENSES.  Sales and marketing expenses increased 329.3%
to $827,300, or 43.0% of revenue, in 1997 from $192,700, or 32.4% of revenue, in
1996. This increase primarily is attributable to the addition of sales and
marketing personnel and a substantial increase in trade show, promotional and
public relations activities.
 
    GENERAL AND ADMINISTRATIVE.  General and administrative expenses increased
by 48.4% to $324,700, or 16.9% of revenue, in 1997 from $218,900, or 36.8% of
revenue, in 1996. This increase primarily is attributed to hiring additional
administrative personnel, legal services and benefit expenses necessary to
support expanding operations.
 
                                       30
<PAGE>
    RESEARCH AND DEVELOPMENT.  Research and development expenses increased by
356.8% to $190,500, or 9.9% of revenue, in 1997 from $41,700, or 7.0% of
revenue, in 1996 due to the change in GraphOn's products as discussed above.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    Prior to 1998, GraphOn funded its operations, working capital needs and
capital expenditures primarily through cash flow from operations. In 1998,
GraphOn received $775,000 from the issuance of notes convertible into shares of
GraphOn common stock and, in October and December of 1998, received aggregate
net proceeds of $2,697,400 in connection with the first and second closings of a
private placement offering. On December 31, 1998, a $200,000 note converted into
200,000 shares of GraphOn common stock and a note in the amount of $100,000 was
repaid by GraphOn. As of December 31, 1998, GraphOn had cash and cash
equivalents of $1,798,400 as compared to total liabilities of $614,600,
exclusive of deferred revenue of $112,600 and, $475,000 convertible note
payable. In January 1999, such convertible note was repaid from the net proceeds
of the final closing of GraphOn's private placement of securities whereby
GraphOn received additional net proceeds of $1,708,600.
 
    GraphOn anticipates that cash balances as of December 31, 1998, coupled with
the cash infusion from the above sale of common stock in connection with the
final closing of the private placement, as well as anticipated revenue from
operations, but exclusive of at least $5,400,000 to be available to GraphOn upon
consummation of the merger, assuming no conversion of Unity common stock into
cash, will be sufficient to meet GraphOn's working capital and capital
expenditure needs through December 31, 1999.
 
YEAR 2000
 
    GraphOn is aware of problems associated with computer systems as the year
2000 approaches. Many existing computer systems and applications and other
control devices use only two digits to identify a year in the date field,
without considering the impact of the upcoming change in the century. Others do
not correctly process "leap year" dates. As a result, such systems and
applications could fail or create erroneous results unless corrected so that
they can correctly process data related to the year 2000 and beyond. These
problems are expected to increase in frequency and severity as the year 2000
approaches, and are commonly referred to as the "year 2000 problem."
 
    GraphOn is continuing to assess the impact that the year 2000 problem may
have on its operations and has identified the following three key areas of its
business that may be affected:
 
    - PRODUCTS. GraphOn has evaluated each of its most current products and
      older versions and believes that each is substantially year 2000
      compliant. However, GraphOn believes that it is not possible to determine
      whether all of its customers' products into which the GraphOn products are
      incorporated or connected will be year 2000 complaint because GraphOn has
      little or no control over the design, production and testing of its
      customers' products.
 
    - INTERNAL INFRASTRUCTURE. The year 2000 problem could affect the systems,
      transaction processing computer applications and devices used by GraphOn
      to operate and monitor all major aspects of its business, including
      financial systems (such as general ledger, accounts payable and payroll),
      customer services, infrastructure, materials requirement planning, master
      production scheduling, networks and telecommunications systems. GraphOn
      believes that it has identified substantially all of the major systems,
      software applications and related equipment used in connection with its
      internal operations that must be modified or upgraded in order to minimize
      the possibility of a material disruption to its business. GraphOn has
      modified and upgraded all affected systems. Because most of the software
      applications used by GraphOn are recent versions of vendor supported,
      commercially available products, GraphOn has not incurred, and does not
      expect in the future to incur, significant costs to upgrade these
      applications as year 2000 complaint versions are released by the
      respective vendors.
 
                                       31
<PAGE>
    - FACILITY SYSTEMS. Systems such as heating, sprinklers, test equipment and
      security systems at GraphOn's facilities also may be affected by the year
      2000 problem. GraphOn currently is assessing the potential effect of and
      costs of remediating the year 2000 problem on its facility systems.
      GraphOn estimates that the total cost to the company of completing any
      required modifications, upgrades or replacements of these systems will not
      have a material adverse effect on GraphOn's business or results of
      operations.
 
    GraphOn presently estimates that the total cost of addressing its year 2000
issues will be less than approximately $10,000. This estimate was derived
utilizing numerous assumptions, including the assumption that GraphOn already
has identified its most significant year 2000 issues. However, there can be no
guarantee that these assumptions are accurate, and actual results could differ
materially from those anticipated.
 
    GraphOn currently is developing contingency plans to address the year 2000
issues that may pose a significant risk to its on-going operations. Such plans
could include accelerated replacement of affected equipment or software,
temporary use of back-up equipment or software or the implementation of manual
procedures to compensate for system deficiencies. However, there can be no
assurance that any contingency plans implemented by GraphOn would be adequate to
meet GraphOn's needs without materially impacting its operations, that any such
plan would be successful or that the company's results of operations would not
be materially and adversely affected by the delays and inefficiencies inherent
in conducting operations in an alternative manner.
 
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK OF GRAPHON
 
    GraphOn is not exposed to financial market risks from changes in foreign
currency exchange rates or changes in interest rates and does not use derivative
financial instruments. A substantial majority of GraphOn's revenue and capital
spending is transacted in U.S. dollars. However, in the future, GraphOn may
enter into transactions in other currencies. An adverse change in exchange rates
would result in a decline in income before taxes, assuming that each exchange
rate would change in the same direction relative to the U.S. dollar. In addition
to the direct effects of changes in exchange rates, such changes typically
affect the volume of sales or foreign currency sales price as competitors'
products become more or less attractive.
 
ADOPTION OF NEW ACCOUNTING PRONOUNCEMENTS
 
    In February 1998, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standard No. 132, "EMPLOYER'S DISCLOSURE ABOUT
PENSIONS AND OTHER POSTRETIREMENT BENEFITS," which standardizes the disclosure
requirements for pension and other post-retirement benefits. The adoption of
SFAS No. 132 is not expected to impact GraphOn's current disclosures.
 
RECENTLY ISSUED ACCOUNTING STANDARDS AND PRONOUNCEMENTS NOT YET ADOPTED
 
    In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position 98-1, "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use" ("SOP 98-1"). Under
the provisions of SOP 98-1, software development is divided into three phases:
the preliminary project state, which includes conceptual formulation and
selection of alternatives; the application development stage, which includes
design of chosen path, coding, installation of hardware and testing; and the
post-implementation/operation stage, which includes training and application
maintenance. Generally, only internal and external costs incurred during the
second phase, the application development stage, are capitalizable, with the
exception of data conversion and training costs, which are to be expensed when
incurred during this phase. SOP 98-1 is not effective for GraphOn's 1998
financial statements. Management does not expect this standard to have a
significant impact on GraphOn's financial statements.
 
                                       32
<PAGE>
    In April 1998, the AICPA issued statement of Position 98-5, "Reporting on
the Costs of Start-up Activities" ("SOP 98-5"). SOP 98-5 requires the cost of
start-up activities, including organizational costs, be expensed as incurred and
is not effective for GraphOn's fiscal 1998 financial statements. Management does
not expect this standard to have a significant impact on GraphOn's financial
statements.
 
    In June 1998, FASB issued Statement of Financial Accounting Standard No.
133, "Accounting for Derivative Instruments and Hedging Activities" (SFAS No.
133"). SFAS No. 133 requires that every derivative instrument (including certain
derivative instruments embedded in other contracts) be recorded on the balance
sheet as either an asset or liability measured at its fair value. The Statement
is effective for all fiscal years beginning after June 15, 1999. As GraphOn
currently is not a party to any derivative financial instruments and does not
anticipate becoming a party to any derivative instruments, management does not
expect this standard to have a significant impact on the GraphOn financial
statements.
 
                                       33
<PAGE>
                  SELECTED HISTORICAL FINANCIAL DATA OF UNITY
 
    The following selected historical financial data should be read in
conjunction with the historical financial statements of Unity and the notes
thereto appearing elsewhere in this joint proxy statement/ prospectus. The
selected financial data of Unity as of July 31, 1998 and 1997, for the years
ended July 31, 1998 and 1997 and for the period from inception (May 30, 1996) to
July 31, 1998 have been derived from the financial statements of Unity, which
have been audited by Arthur Andersen LLP, independent public accountants. The
data as of and for the six months ended January 31, 1999 and 1998 and for the
period from inception (May 30, 1996) to January 31, 1999 have been derived from
Unity's unaudited condensed financial statements included elsewhere in this
joint proxy statement/prospectus and which, in the opinion of management,
include all adjustments (consisting of only normal recurring adjustments)
necessary for a fair presentation of the information set forth therein. The
results of operations for the six months ended January 31, 1999 are not
necessarily indicative of the results that may be expected for the full year.
 
UNITY
 
    STATEMENTS OF OPERATIONS DATA:
 
<TABLE>
<CAPTION>
                                                                                              PERIOD FROM MAY
                                                 SIX MONTHS ENDED           YEAR ENDED            30, 1996
                                                   JANUARY 31,               JULY 31,         (INCEPTION) (1)
                                              ----------------------  ----------------------         TO
                                                 1999        1998        1998      1997(1)     JULY 31, 1996
                                              ----------  ----------  ----------  ----------  ----------------
<S>                                           <C>         <C>         <C>         <C>         <C>
Revenues....................................  $       --  $       --  $       --  $       --    $         --
Net (loss) income...........................    (239,035)     30,526    (315,991)      6,637         (15,000)
(Loss) income per common share (basic and
  diluted)..................................        (.13)        .02        (.17)         --            (.02)
                                              ----------  ----------  ----------  ----------        --------
Weighted average common shares..............   1,875,000   1,875,000   1,875,000   1,515,000         625,000
</TABLE>
 
    BALANCE SHEET DATA:
 
<TABLE>
<CAPTION>
                                                                        JANUARY 31,      JULY 31,      JULY 31,
                                                                           1999            1998          1997
                                                                      ---------------  ------------  ------------
<S>                                                                   <C>              <C>           <C>
Total Assets........................................................   $   6,605,885    $6,489,903    $6,465,021
Total Liabilities...................................................         767,099       412,082        71,209
Stockholders' Equity(2).............................................       4,518,461     4,780,520     5,154,432
</TABLE>
 
- ------------------------
 
(1) Unity was inactive during the period May 30, 1996 (inception) through
    November 19, 1996.
 
(2) Does not include shares subject to possible conversion at conversion value.
 
                                       34
<PAGE>
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                       AND RESULTS OF OPERATIONS OF UNITY
 
    Unity was incorporated in May 1996 for the purpose of raising money to fund
a vehicle to effect a merger or similar business combination with an operating
business. On November 12, 1996, Unity's registration statement under the
Securities Act covering 1,250,000 units, each unit consisting of one share of
Unity common stock, one Class A redeemable warrant and one Class B redeemable
warrant at an initial public offering price of $6.00 per unit, was declared
effective by the SEC. Unity derived $6,402,112 from
the IPO, prior to underwriting commissions of $600,000 and other expenses of
$497,888.
 
    For the six months ended January 31, 1999, for the years ended July 31, 1998
and 1997, and for the period from the date of inception (May 30, 1996) to July
31, 1996, Unity had net income (loss) of $(239,035), $(315,000), $6,637 and
$(15,000), respectively. These results of operations were attributable to
interest and dividend income offset by general and administrative expenses,
primarily consisting of management and professional fees of $151,282, $346,390,
$127,775 and $15,000, respectively, and taxes. Unity was inactive during the
period May 30, 1996 (date of inception) through November 19, 1996.
 
    On January 31, 1999, Unity had cash and cash equivalents and short-term
investments, inclusive of restricted cash and investments of $6,604,929,
totaling $6,605,885 and total liabilities of $767,099.
 
    See "The Merger" for information as to the merger agreement, the parties to
the merger agreement and the merger which it contemplates.
 
                                       35
<PAGE>
                               GRAPHON AND UNITY
                   PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)
 
INTRODUCTION TO PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)
 
    The accompanying unaudited pro forma balance sheet presents the financial
position of GraphOn and Unity as of December 31, 1998 and January 31, 1999,
respectively, assuming the Merger had been completed as of the respective
balance sheet dates. The unaudited pro forma statement of operations for the
years ended December 31, 1998 and January 31, 1999 for GraphOn and Unity,
respectively, reflect the Merger, as if the Merger had occurred on the first day
of the fiscal years presented, taking into effect certain events that occurred
subsequent to the periods presented.
 
    Separate pro forma financial statements have been presented for the
following circumstances: (1) that no Public Unity Shareholders exercise their
right to have their shares converted upon the consummation of the Merger, and
(2) that 19.99% of interest in Unity Common Stock held by Public Unity
Shareholders elect to have their shares converted upon the consummation of the
Merger at the conversion value of $5.28 per share, based on the amount held in
the Unity trust account, inclusive of interest income to date thereon, at
January 31, 1999. The basis of presentation described in (2) results from the
possibility that up to a maximum of 19.99% of interest in Unity Common Stock
held by Public Unity Shareholders may vote no to the proposed transaction and,
if the transaction is consummated, would have their shares redeemed at the
conversion value of approximately $5.28 per share, or a total of $1,320,325 as
of January 31, 1999. Should 20% or more vote against the proposed transaction,
the transaction would not be consummated.
 
    In the proposed Merger, each outstanding share of GraphOn Common Stock will
be exchanged for Unity Common Stock, at an exchange ratio of approximately
0.5576 of a share of Unity Common Stock to one share of GraphOn Common Stock. As
a result of the Merger, the GraphOn Shareholders will collectively acquire
approximately 9,124,543 shares of Unity Common Stock or approximately 83.0% of
the then outstanding Unity Common Stock. The Merger will be accounted for as a
capital transaction which is equivalent to the issuance of stock by GraphOn for
Unity's net monetary assets of approximately $6,000,000, accompanied by a
recapitalization of GraphOn.
 
    The pro forma financial information does not purport to be indicative of the
results which would have actually been obtained had such transactions been
completed as of the assumed dates and for the periods presented or which may be
obtained in the future.
 
                                       36
<PAGE>
                               GRAPHON AND UNITY
                        PRO FORMA BALANCE SHEET--ASSETS
         AS OF DECEMBER 31, 1998 (GRAPHON) AND JANUARY 31, 1999 (UNITY)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                      ADDITIONAL
                                                  PRO FORMA                            PRO FORMA
                                                 ADJUSTMENTS        COMBINED          ADJUSTMENTS         COMBINED
                                                (WITH NO STOCK      (WITH NO         (WITH 19.99%       (WITH 19.99%
                         GRAPHON       UNITY     CONVERSION)    STOCK CONVERSION)  STOCK CONVERSION)  STOCK CONVERSION)
                         ----------  ---------  --------------  -----------------  -----------------  -----------------
<S>                      <C>         <C>        <C>             <C>                <C>                <C>
CURRENT ASSETS:
Cash and cash
  equivalents..........  $1,798,400  $     956    $6,000,000(b)    $ 8,457,956        $(1,320,325)(g)    $ 7,269,664
                                                    (575,000)(d)                          132,033(j)
                                                   1,233,600(e)
Restricted cash and
  investments..........          --  6,604,929    (6,604,929)(b)             --                                   --
Accounts receivable....     564,700         --                         564,700                               564,700
Other current assets...      32,100         --                          32,100                                32,100
                         ----------  ---------                  -----------------                     -----------------
Total current assets...   2,395,200  6,605,885                       9,054,756                             7,866,464
                         ----------  ---------                  -----------------                     -----------------
PROPERTY AND EQUIPMENT,
  NET..................     423,300         --                         423,300                               423,300
PURCHASED TECHNOLOGY...   3,645,400         --                       3,645,400                             3,645,400
OTHER ASSETS...........      80,600         --                          80,600                                80,600
                         ----------  ---------                  -----------------                     -----------------
                         $6,544,500  $6,605,885                    $13,204,056                           $12,015,764
                         ----------  ---------                  -----------------                     -----------------
                         ----------  ---------                  -----------------                     -----------------
CURRENT LIABILITIES:
Trade accounts
  payable..............  $  115,700  $      --                     $   115,700                           $   115,700
Accrued expenses.......     498,900    690,817                       1,189,717                             1,189,717
Deferred revenue.......     112,600         --                         112,600                               112,600
Advances from
  affiliates...........          --     76,282                          76,282                                76,282
Convertible notes
  payable..............     475,000         --      (475,000)(e)             --                                   --
                         ----------  ---------                  -----------------                     -----------------
Total current
  liabilities..........   1,202,200    767,099                       1,494,299                             1,494,299
                         ----------  ---------                  -----------------                     -----------------
 
COMMITMENTS AND
  CONTINGENCIES
Common stock, $.0001
  par value, 249,875
  shares subject to
  possible conversion,
  at conversion
  value................          --  1,320,325    (1,320,325)(c)             --                                   --
 
STOCKHOLDERS' EQUITY:
Common stock...........   7,480,800        163    (7,479,998) (a)          1,100              (25)(g)          1,075
                                                          25
                                                         110(e)
Additional paid-in
  capital..............          --  5,081,687     6,916,609        13,847,157         (1,320,300)(g)     12,658,890
                                                    (604,929)(b)                          132,033(j)
                                                   1,320,300(c)
                                                    (575,000)(d)
                                                   1,708,490(e)
Accumulated deficit....  (2,138,500)  (563,389)      563,389(a)     (2,138,500)                           (2,138,500)
                         ----------  ---------                  -----------------                     -----------------
Total stockholders'
  equity...............   5,342,300  4,518,461                      11,709,757                            10,521,465
                         ----------  ---------                  -----------------                     -----------------
                         $6,544,500  $6,605,885                    $13,204,056                           $12,015,764
                         ----------  ---------                  -----------------                     -----------------
                         ----------  ---------                  -----------------                     -----------------
</TABLE>
 
                                       37
<PAGE>
                               GRAPHON AND UNITY
                       PRO FORMA STATEMENT OF OPERATIONS
                FOR THE YEARS ENDED DECEMBER 31, 1998 (GRAPHON)
                          AND JANUARY 31, 1999 (UNITY)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                     ADDITIONAL
                                                 PRO FORMA                            PRO FORMA
                                                ADJUSTMENTS        COMBINED          ADJUSTMENTS         COMBINED
                                               (WITH NO STOCK      (WITH NO         (WITH 19.99%       (WITH 19.99%
                        GRAPHON       UNITY     CONVERSION)    STOCK CONVERSION)  STOCK CONVERSION)  STOCK CONVERSION)
                        ----------  ---------  --------------  -----------------  -----------------  -----------------
<S>                     <C>         <C>        <C>             <C>                <C>                <C>
REVENUES..............  $2,124,200  $      --                     $ 2,124,200                           $ 2,124,200
COST OF GOODS SOLD....     344,200         --                         344,200                               344,200
                        ----------  ---------                  -----------------                     -----------------
Gross margin..........   1,780,000         --                       1,780,000                             1,780,000
 
COSTS AND EXPENSES:
Selling and
  marketing...........   1,440,300         --                       1,440,300                             1,440,300
General and
  administrative......   1,208,900    460,839                       1,669,739                             1,669,739
Research and
  development.........     840,200         --                         840,200                               840,200
                        ----------  ---------                  -----------------                     -----------------
Total costs and
  expenses............   3,489,400    460,839                       3,950,239                             3,950,239
                        ----------  ---------                  -----------------                     -----------------
Operating loss........  (1,709,400)  (460,839)                     (2,170,239)                           (2,170,239)
                        ----------  ---------                  -----------------                     -----------------
OTHER INCOME/
  (EXPENSE):
Interest income and
  other...............       9,800    192,522                         202,322            (39,633)(h)        162,689
Interest expense......     (46,900)        --                         (46,900)                              (46,900)
Other expense.........     (16,500)        --                         (16,500)                              (16,500)
                        ----------  ---------                  -----------------                     -----------------
Total other income
  (expense)...........     (53,600)   192,522                         138,922                                99,289
                        ----------  ---------                  -----------------                     -----------------
Loss before taxes.....  (1,763,000)  (268,317)                     (2,031,317)                           (2,070,950)
Income tax expense
  (benefit)...........         800     (5,393)                         (4,593)                               (4,593)
                        ----------  ---------                  -----------------                     -----------------
Net loss..............  $(1,763,800) $(262,924)                   $(2,026,724)                          $(2,066,357)
                        ----------  ---------                  -----------------                     -----------------
                        ----------  ---------                  -----------------                     -----------------
NET LOSS PER SHARE
  (BASIC AND
  DILUTED)............              $   (0.14)                    $     (0.18)                          $     (0.19)
                                    ---------                  -----------------                     -----------------
                                    ---------                  -----------------                     -----------------
WEIGHTED AVERAGE
  NUMBER OF COMMON
  SHARES
  OUTSTANDING.........              1,875,000                      10,999,543(f)                         10,749,668(i)
                                    ---------                  -----------------                     -----------------
                                    ---------                  -----------------                     -----------------
</TABLE>
 
                                       38
<PAGE>
              NOTES TO PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)
 
1) BASIS OF PRESENTATION
 
    The pro forma balance sheet combines the balance sheets of GraphOn and Unity
as of December 31, 1998 and January 31,1999, respectively, assuming that the
Merger had been completed as of the respective balance sheet dates. The pro
forma statements of operations combine the statement of operations of GraphOn
for the year ended December 31, 1998 with the statement of operations of Unity
for the year ended January 31, 1999, assuming that the Merger occurred at the
beginning of the periods presented, taking into effect certain events that
occurred subsequent to the periods presented.
 
    Separate pro forma financial statements have been presented for the
following circumstances: (1) that no Public Unity Shareholders exercise their
right to have their shares converted upon the consummation of the Merger, and
(2) that 19.99% of interest in Unity Common Stock held by Public Unity
Shareholders elect to have their shares converted upon the consummation of the
Merger at the conversion value of $5.28 per share, based on the amount held in
the Unity trust account, inclusive of interest income to date thereon, at
January 31, 1999.
 
    No pro forma adjustments have been provided for (1) any additional payments
that may be required to be paid to GraphOn creditors resulting from GraphOn's
1991 bankruptcy proceedings discussed previously herein, or (2) 1,607,000
GraphOn shares issuable for no additional consideration on June 30, 2000 if
GraphOn at that date has not completed an inital public offereing or a merger or
sale of all of its assets as the transcation with Unity is deemed to be one of
the qualifying events identified.
 
    The historical balance sheets used in the preparation of the pro forma
financial statements have been derived from GraphOn's and Unity's audited and
unaudited financial statements, respectively, as of December 31, 1998 and
January 31, 1999, respectively. The historical statements of operations for the
year ended December 31, 1998 (GraphOn) and the year ended January 31, 1999
(Unity) have been derived from the audited and unaudited statements of
operations, respectively.
 
2) UNAUDITED PRO FORMA ADJUSTMENTS
 
    A description of the adjustments included in the unaudited pro forma
financial statements are as follows:
 
    (a) Reflects the recapitalization of GraphOn through the elimination of
       Unity's accumulated deficit and adjustment of equity accounts upon the
       exchange of GraphOn Common Stock into 9,124,543 shares of Unity Common
       Stock.
 
    (b) Reflects the release of Unity's restricted cash as a result of the
       Merger and the contribution of $6,000,000 to the operations of the
       ongoing entity, as provided in the merger agreement. The balance of
       restricted funds released are charged to additional paid in capital as
       estimated costs of the transaction.
 
    (c) Reflects the reclassification of the conversion value of the Unity
       Common Stock to Shareholder's Equity assuming no stock conversion.
 
    (d) Reflects the payment of up to $575,000 to Spencer Trask in consideration
       of consulting services performed in connection with the Merger.
 
    (e) Reflects the (i) issuance of and net proceeds from the sale and issuance
       of 1,963,868 shares of GraphOn's common stock in a private placement and
       (ii) retirement of the $475,000 convertible note payable from such
       proceeds, both of which occurred in January 1999.
 
    (f) Reflects the weighted average shares outstanding for Unity of 1,875,000
       for the year ended January 31, 1999, plus 9,124,543 shares to be issued
       upon consummation of the Merger.
 
                                       39
<PAGE>
2) UNAUDITED PRO FORMA ADJUSTMENTS (CONTINUED)
    (g) Reflects the conversion of 19.99% of interest in Unity Common Stock held
       by Public Unity Stockholders, or 249,875 shares, at the conversion value
       of $5.28 per share. The number of shares assumed converted is based on
       the total Unity shares outstanding prior to the Merger of 1,875,000, less
       625,000 Unity shares held by Non-Public Unity Stockholders, and
       represents the maximum number of shares that may be elected to be
       converted without precluding the consummation of the Merger.
 
    (h) Reflects a reduction of Unity's interest income assuming the proceeds of
       the Merger were used to convert 249,875 Unity shares as described in (g).
       The estimate of reduction in interest income is based on the combined
       entity having $1,320,325 less in proceeds, assuming an average rate of
       return consistent with that earned by Unity of approximately 3.0% for the
       year ended January 31, 1999.
 
    (i) Reflects the weighted average shares outstanding for Unity of 1,875,000
       for the year ended January 31, 1999, less the 249,875 Unity shares
       assumed converted as described in (g), plus 9,124,543 shares to be issued
       upon consummation of the Merger.
 
    (j) Reflects the reduction in the consulting fee payment to Spencer Trask
       resulting from the conversion of 249,875 Unity shares as described in
       (g).
 
                                       40
<PAGE>
                              BUSINESS OF GRAPHON
 
GRAPHON
 
    GraphOn develops, markets, sells and supports server-based software for the
enterprise computing environment. "Server-based computing," sometimes referred
to as thin-client computing, is a computing model where traditional desktop
software applications are relocated to run entirely on a server or host
computer. GraphOn's technology uses a small software program at each desktop,
which allows the user to interface with an application as if it where running on
the user's desktop computer. This centralized deployment and management of
applications reduces the complexity and total costs associated with enterprise
computing. In addition, by accessing such applications over the Internet, new
operational models and sales channels are emerging. GraphOn provides the
technology to access applications over the Internet. GraphOn's server-based
technology works on today's most powerful personal computer or low-end network
computer, without application rewrites or changes to the corporate computing
infrastructure.
 
    GraphOn has established strategic alliances with technology leaders such as
IBM, Sun Microsystems and Corel, who have licensed GraphOn's technology. Using
GraphOn technology, Sun Microsystems and IBM provide their network computers
access to UNIX applications. Corel plans to use GraphOn's technology to provide
Internet access to its applications, such as WordPerfect, over the Internet.
 
INDUSTRY BACKGROUND
 
    HISTORY
 
    In the 1970's, software applications were executed on central mainframes and
typically accessed by low-cost display terminals. Information technology
departments were responsible for deploying, managing and supporting the
applications to create a reliable environment for users. In the 1980's, the PC
became the desktop of choice, empowering the user with flexibility, a graphical
user interface, and a multitude of productive and inexpensive applications. In
the 1990's, the desktop was provided access to mainframe applications and
databases, which run on large server computers. Throughout this computing
evolution, the modern desktop has become increasingly complex and costly to
administer and maintain. This is further exacerbated as organizations become
more dispersed with remote employees, and the desire increases to become more
closely connected with vendors and customers through the Internet.
 
    LOWERING TOTAL COST OF OWNERSHIP
 
    PC software in general has grown dramatically in size and complexity in
recent years. As a result, the cost of supporting and maintaining PC desktops
has increased substantially. A leading research firm estimates the annual cost
of operating a corporate PC was as much as $9,382 in 1997 and will increase to
as much as $13,485 by 2001. Industry analysts and enterprise users alike have
begun to recognize that the total cost of ownership of a PC, taking into account
the recurring cost of technical support, administration and end-user down time,
has become high both in absolute terms and relative to the initial hardware
purchase price.
 
    With increasing demands to better control corporate computing costs,
industry leaders are developing technology to address total cost of ownership
issues. One approach, led by Sun Microsystems and IBM, utilizes Java-based
network computers, which operate by downloading small Java programs to the
desktop, which in turn are used for accessing server-based applications. The
other approach is Microsoft's Windows NT-TM-, terminal server edition,
introduced in June 1998, which permits server-based Windows applications to be
accessed from the new Windows-based network computers. Both initiatives are
examples of server-based computing, which simplifies the desktop by moving the
responsibility of running applications to a central server, with the promise of
lowering total cost of ownership.
 
                                       41
<PAGE>
    CROSS-PLATFORM COMPUTING
 
    Today's enterprises contain a diverse collection of desktop computers, each
with its particular operating system, processing power and connection type.
Consequently, it is becoming increasingly difficult to provide universal desktop
access to business-critical applications across the enterprise. As a result,
organizations resort to desktop emulation software, new hardware or costly
application rewrites.
 
    A common cross-platform problem is the need to access UNIX or Linux
applications from a PC desktop. While UNIX-based computers dominate the
enterprise applications market, Microsoft Windows-based PCs are used on the
majority of enterprise desktops. Since the early 1990's, organizations have been
striving to connect desktop PCs to UNIX applications over all types of
connections, including networks and standard phone lines. This effort, however,
is complex and costly. The primary solution to date is known as PC X Server
software, large software programs that require substantial memory and processing
resources on the desktop. Typically, PC X Server software is difficult to
install, configure and maintain. Enterprises are looking for an effective UNIX
connectivity software for PCs and non-PC desktops that is easier and less
expensive to administer and maintain.
 
    APPLICATION SERVICE PROVIDERS
 
    With the ubiquitous nature of the Internet, new operational models and sales
channels are emerging. Traditional high-end software packages that were once too
expensive for many companies are now available for rent over the Internet. By
servicing customers through a centralized operation rather than installing and
maintaining applications at each customer site, GraphOn expects that application
service providers quickly will play an important role in addressing an
enterprise's computing requirements. Today, application service providers are
faced with the difficult task of creating or rewriting applications to entertain
the broader market. Though the application service provider industry is just
beginning to emerge, GraphOn expects it to develop rapidly, due to application
vendors' desire to expand their markets.
 
    REMOTE COMPUTING
 
    The cost and complexity of contemporary enterprise computing has been
further complicated by the growth in remote access requirements. As business
activities become physically distributed, computer users have looked to portable
computers with remote access capabilities to stay connected in a highly
dispersed work environment. One problem facing remote computing over the
Internet or direct telephone connections is the slow speed of communication in
contrast to the high speed of internal corporate networks. Today, applications
requiring remote access must be tailored to the limited speed and lower
reliability of remote connections, further complicating the already significant
challenge of connecting desktop users to business-critical applications.
 
THE GRAPHON APPROACH
 
    GraphOn's server-based software deploys, manages, supports and executes
applications entirely on the server computer and distributes them efficiently
and instantaneously to virtually any desktop device. GraphOn's technology
consists of three key components:
 
    - The server component runs alongside the server-based application and is
      responsible for intercepting user-specific information for display at the
      desktop.
 
    - The desktop component is responsible only for sending keystrokes and mouse
      motion to the server, as well as presenting the application interface to
      the desktop user. This keeps the desktop simple, or thin, as well as
      independent of application requirements for resources, processing power
      and operating systems.
 
                                       42
<PAGE>
    - GraphOn's protocol enables efficient communication over fast networks or
      slow dial-up connections and allows applications to be accessed from
      virtually any location with network-like performance and responsiveness.
 
    The major benefits of the GraphOn approach are as follows:
 
    - LOWERS TOTAL COST OF OWNERSHIP. Shrinking recurring costs is a primary
      goal of GraphOn's products. Today, installing enterprise applications
      typically is time-consuming, complex and expensive, requiring
      administrators to manually install and support diverse desktop
      configurations and interactions. GraphOn's server-based software
      simplifies application management by enabling deployment, administration
      and support from a central location. Installation and updates are made
      only at the server, avoiding desktop software and operating system
      conflicts and minimizing at-the-desk support. According to a leading
      research firm, server-based computing strategies, such as those offered by
      GraphOn, may achieve as much as a 30% savings by, among other things,
      simplifying the desktop and moving application processing and management
      from individual desktops to a centralized server-based infrastructure. For
      example, in a 2,500-PC computing environment, a leading research firm has
      calculated that a server-based approach would have saved approximately
      $4.5 million in 1997 and, as computing complexity continues to grow, could
      save approximately $16 million in 2001.
 
    - CONNECTS DIVERSE COMPUTING PLATFORMS. Today's computing infrastructures
      are a mix of desktop devices, network connections and operating systems.
      Enterprise-wide communication often requires costly and complex emulation
      software or application rewrites. For example, Windows PCs typically may
      not access a company's UNIX applications without installing complex PC X
      Server software on each PC. Typical PC X Servers are large and require an
      information technology professional to properly install and configure each
      desktop. For Macintosh, the choices are even fewer, requiring the addition
      of yet another vendor product. For the newer desktop technologies, such as
      Sun Microsystems' and IBM's network computers, access to UNIX is
      impractical without server-based products. To rewrite an application for
      each different desktop and their many diverse operating systems is often a
      difficult and time-consuming task. In addition to the development expense,
      issues of desktop performance, data compatibility and support costs often
      make this option prohibitive. GraphOn's products provide organizations the
      ability to access applications from virtually all desktops, utilizing
      their existing computing infrastructure, without rewriting a single line
      of code or changing or reconfiguring desktop hardware. This means that
      enterprises can maximize their investment in existing technology and allow
      users to work in their preferred desktop environment.
 
    - APPLICATION SERVICE PROVIDERS. Many large enterprises have made
      significant investments in developing, marketing and selling
      enterprise-wide software solutions. GraphOn's server-based technology is
      designed to allow Windows, Linux and UNIX access from any desktop
      connected to the Internet. Today's packaged applications can be accessed
      quickly, easily and without modification.
 
    - LEVERAGES EXISTING PCS AND DEPLOYS NEW DESKTOP HARDWARE. GraphOn's
      software brings the benefits of server-based computing to users of
      existing PC hardware, while simultaneously enabling enterprises to begin
      to take advantage of and deploy less complex network computers. This
      assists organizations in maximizing their current investment in hardware
      and software while, at the same time, facilitating a manageable and cost
      effective transition to newer desktop devices.
 
    - EFFICIENT PROTOCOL. Applications typically are designed for
      network-connected desktops, which can put tremendous strain on congested
      networks and may yield poor, sometimes unacceptable, performance over
      remote connections. For application service providers, bandwidth typically
      is the top recurring expense when web-enabling or renting access to
      applications over the Internet. GraphOn's highly efficient protocol sends
      only keystrokes, mouse clicks and display updates over the network
      resulting in minimal impact on bandwidth for application deployment, thus
      lowering cost on a per user basis. Within the enterprise, GraphOn's
      protocol can extend the reach of
 
                                       43
<PAGE>
      business-critical applications to all areas, including branch offices,
      telecommuters and remote users, over the Internet, phone lines or wireless
      connections. This concept may be extended further to include vendors and
      customers for increased manufacturing flexibility, time-to-market and
      customer satisfaction.
 
PRODUCTS
 
    GraphOn's products are designed to allow enterprises to access Windows, UNIX
and Linux applications from centrally managed servers without modification.
Currently, GraphOn's products provide the UNIX and Linux server-based software.
With the integration of the jBridge technology in late 1999, the current product
line will be extended to access Windows applications from centrally managed
servers, widening GraphOn's product offering and opportunities.
 
    - GO-Global is a server-based software product for high performance access
      to UNIX and Linux applications from any Windows PC located virtually
      anywhere on an organization's network, the Internet or even over a phone
      line. GraphOn began selling GO-Global in March 1997.
 
    - GO-Joe is a server-based software product for accessing Unix and Linux
      applications, from virtually any Java-enabled desktop or device, including
      the Sun Microsystems and IBM network computers, desktops and hand-held
      devices with web browsers such as Microsoft Internet Explorer-TM- or
      Netscape Navigator-TM-. GraphOn began selling GO-Joe in July 1998. Sun
      Microsystems began shipping GO-Joe for distribution with its network
      computers in July 1998, and IBM is expected to start shipping GO-Joe with
      its network computers in the second quarter of 1999.
 
    - GO-Between is a server-based software product for accessing UNIX and Linux
      applications from Microsoft's Windows NT, terminal server edition.
      GO-Between minimizes the impact on server resources over traditional
      emulator solutions for accessing UNIX and Linux applications from
      Microsoft's terminal server edition products. This increases the number of
      simultaneous users that may access UNIX from any one terminal server
      edition server. Microsoft has released a technical whitepaper describing
      the UNIX access benefits of GO-Between for terminal server edition users.
      GraphOn began shipping GO-Between in October 1998.
 
    - jBridge is a technology GraphOn acquired from Corel in December 1998. It
      will enable GO-Global, GO-Between and GO-Joe to access server-based
      Windows applications. With the anticipated integration of the jBridge
      technology in late 1999, GraphOn will offer complete cross platform access
      to Windows applications from virtually any desktop. Since the applications
      are not running on the desktop, even a non-Windows desktop will be able to
      access Windows applications. Windows applications can be accessed from
      desktop computers using various operating systems such as Macintosh, UNIX,
      Linux and OS/2, which will appear and function as if they were running
      locally on the desktop.
 
TARGET MARKETS
 
    The market for GraphOn's products comprises all organizations that need to
access Windows, UNIX and/or Linux applications from a wide variety of desktops
from any location, including over the Internet and dial-up lines. This includes
large organizations, such as Fortune 1000 companies, government and educational
institutions. GraphOn software is designed to allow these enterprises to use the
best desktop for a particular purpose, rather than following a "one PC fits
all," high total cost of ownership model. GraphOn's opportunity within the
marketplace is more specifically broken down as follows:
 
    ENTERPRISES EMPLOYING A MIX OF UNIX AND WINDOWS.  Most major enterprises
employ a mix of UNIX computers and Windows PCs. Companies that utilize a mixed
computing environment require cross-platform connectivity solutions like
GO-Global that will allow users to access UNIX applications from desktop PCs. It
has been estimated that PCs represent over 90% of enterprise desktops. GraphOn
believes
 
                                       44
<PAGE>
that its products are well positioned to exploit this opportunity and that its
server-based software products will significantly reduce the cost and complexity
of connecting PCs to UNIX applications.
 
    ENTERPRISES THAT EMPLOY MICROSOFT'S TERMINAL SERVER EDITION. A leading
research firm estimates that the Microsoft terminal server market will start to
accelerate rapidly, with more than 390,000 host servers installed by the end of
2000. Each terminal server edition server supports a minimum of 10 users, such
that the estimated user base for terminal server editions will be at least 3.9
million in 2000. A leading research firm reports that 38% of surveyed terminal
server edition users will require access to UNIX applications. GraphOn
management believes the terminal server edition market to be a significant
opportunity for GO-Between.
 
    ENTERPRISES WITH REMOTE COMPUTER USERS.  Remote computer users comprise one
of the fastest growing market segments in the computing industry. Efficient
remote access to applications has become an important part of many enterprise
computing strategies. A leading research firm projects that approximately 25
million business users access computing resources remotely in 1998 and that this
number will grow to approximately 137 million worldwide in 2003, with 60% of
these users still connecting via low-bandwidth modems. GraphOn's protocol is
designed to enable highly efficient low-bandwidth connections.
 
    APPLICATION SERVICE PROVIDERS.  High-end software applications in the fields
of human resources, enterprise resource planning, enterprise relationship
management and others historically only have been available to organizations
able to make large investments in capital and personnel. The Internet has opened
up global and mid-tier markets to vendors of this software who may now offer it
to a broader market on a rental basis. GraphOn's products enable the vendors to
provide Internet access to their applications with minimal additional investment
in development implementation.
 
    EXTENDED ENTERPRISE SOFTWARE MARKET.  Extended enterprises allow access to
their computing resources to their customers, suppliers, distributors and other
partners, gaining flexibility in manufacturing and increasing speed-to-market
and customer satisfaction. For example, extended enterprises may maintain
decreased inventory via just-in-time, vendor-managed inventory and related
techniques. The Internet has facilitated this development and a leading research
firm has predicted the extended enterprise software market will grow to an
estimated $5.76 billion in 2002. The early adoption of extended enterprise
solutions may be driven in part by enterprises' need to exchange information
over a wide variety of computing platforms. GraphOn believes that its
server-based software products, along with its low-impact protocol, are well
positioned to provide enabling solutions for extended enterprise computing.
 
STRATEGIC RELATIONSHIPS
 
    GraphOn believes it is important to maintain its current strategic alliances
and intends to seek suitable new alliances in order to improve its technology
and/or enhance its ability to penetrate relevant target markets. The alliances
that GraphOn currently is focusing on are those that have immediate revenue
generating potential, strengthen GraphOn's position in the server-based software
market, add complementary capabilities and/or raise awareness of GraphOn's
products.
 
    SUN MICROSYSTEMS.  In October 1996, Sun MicroSystems licensed GraphOn's
GO-Joe for distribution within its network computers and GraphOn's server
component for distribution with its UNIX computers and operating system.
Pursuant to the Sun Microsystems agreement, Sun has a perpetual, non-exclusive,
world-wide and fully paid up license to, among other things, distribute and sell
GO-Joe with its network computers and to distribute GraphOn's server component
with its UNIX computers and operating systems. The license to Sun also allows
Sun employees to use GO-Global internally and remotely. In addition to what is
provided for in the Sun agreement, Sun's network computers currently display the
GO-Joe logo, GraphOn's name and GraphOn's website address each time GO-Joe is
started, further increasing company and product awareness. GraphOn plans to work
with Sun's sales force and resellers to
 
                                       45
<PAGE>
sell and promote GO-Global and GO-Between as UNIX access solutions for users of
PCs and multi-user NT. As of March 26, 1999, Sun paid GraphOn a $2,125,000
one-time royalty payment for completion of product delivery requirements and for
a site license for GO-Global. Payments totaling $375,000 currently remain, which
are required to be paid to GraphOn upon the completion of certain milestones.
The Sun agreement is expected to terminate in December 2000, although Sun will
continue to have rights to GraphOn products licensed pursuant to the agreement
after its termination.
 
    IBM.  In April 1998, IBM licensed GO-Joe for $1,500,000 for distribution
with certain of its network computers and GraphOn's server component for
distribution with its UNIX computers and operating systems. Pursuant to the IBM
agreement, IBM and its affiliates have a non-exclusive, world-wide, irrevocable,
royalty-free and fully paid up license to, among other things, distribute and
sell, and allow sub-licensees to distribute and sell, GO-Joe and GraphOn's
server component with IBM products and those of its sub-licensees. GraphOn
expects to work with IBM's resellers to persuade IBM's customers to purchase
GO-Global and GO-Between to access UNIX applications from their PCs and
multi-user NT hosts. IBM currently is promoting GO-Joe, and GraphOn intends to
leverage both the IBM relationship and IBM resellers to generate revenues and
increase product awareness. The IBM agreement terminates in November 1999. The
IBM agreement is renewable at IBM's option with 90 days prior written notice,
with pricing terms to be negotiated in good faith. IBM may terminate for
convenience at any time on or after August 1, 1999. IBM will continue to have
rights to GraphOn products licensed pursuant to the IBM agreement after its
termination.
 
    COREL CORPORATION.  In December 1998, GraphOn acquired Corel's jBridge
technology and its jBridge development team, in exchange for certain securities
of GraphOn. See "Description of GraphOn's Securities-Corel Warrant and Similar
Warrant." jBridge is designed to allow any device running Java to access 32-bit
Windows applications remotely and unmodified. When combined with GraphOn's UNIX
products, GraphOn believes that jBridge will provide GraphOn customers with a
complete enterprise solution, linking any of such platforms to virtually any
desktop over virtually any connection.
 
    In addition, GraphOn entered into a strategic alliance with Corel. GraphOn
intends through this alliance to promote its products to Corel's Windows, UNIX
and Linux customers. The alliance has a one year term ending in July 1999 which
is renewable by mutual consent for successive one year periods, and is
terminable at will by either party.
 
SALES, MARKETING AND SUPPORT
 
    GraphOn's customers, to date, are primarily Fortune 1000 companies and large
government organizations. Among GraphOn's current customers are the following:
 
<TABLE>
<S>                                            <C>
Ameritech Corporation                          Amoco Corporation
AT&T Corporation                               Lucent Technologies, Inc.
Canadian Meteorological Centre                 Motorola, Inc.
Cisco Systems, Inc.                            Nortel Technology
Corel Corporation                              National Semiconductor Corp.
Ericsson Telecommunicatie B.V.                 Pfizer Inc.
Hewlett-Packard Company                        Shell Oil Company
IBM                                            Sun Microsystems, Inc.
Johnson & Johnson                              United States Geological Survey
</TABLE>
 
    While previously most of GraphOn's revenues were from direct sales and OEM
agreements, GraphOn currently is developing and expanding relationships with a
select number of resellers. GraphOn expects to benefit from these relationships
by availing itself of their established customer-base, co-marketing programs,
and marketing and sales capabilities. Such resellers include value-added
resellers, system integrators and OEM licensees. GraphOn's sales and marketing
efforts will be focused on
 
                                       46
<PAGE>
increasing product awareness and demand among large enterprises and developing
formal distribution relationships with UNIX and Windows-oriented resellers.
Current marketing activities include a targeted direct mail campaign,
tradeshows, production of promotional materials, public relations and
maintaining an Internet presence for marketing and sales purposes. In August
1998, GraphOn hired three senior level sales professionals to develop GraphOn's
reseller channels.
 
    Due to the nature of GraphOn's products, remote access via telephone lines
or the Internet can be used to troubleshoot and diagnose problems. GraphOn
provides technical support and training to OEMs and resellers that function as
the first line of support for their own customers. GraphOn provides 90-day
online Internet, e-mail, fax and telephone-based services for technical support
and software upgrades at no charge. Additionally, purchasers of GraphOn's
products can choose to purchase an annual extended maintenance program, which
currently costs 15% of the product purchase price per year.
 
RESEARCH AND DEVELOPMENT
 
    GraphOn's research and development efforts currently are focused on
developing new products and further enhancing the functionality, performance and
reliability of existing products. GraphOn invested $840,200 in research and
development in 1998 and expects increased expenditures in 1999. GraphOn has made
significant investments in its protocol and in the performance and development
of its server-based software.
 
    In May 1998, GraphOn hired a group of eight software engineers located in
Bellevue, Washington. They have experience in Java, protocol technology and
various Microsoft Windows operating systems. They are working to enhance
GraphOn's existing software products as well as beginning to conceptualize and
architect future products. In December 1998, GraphOn hired nine additional
software engineers located in Concord, New Hampshire in connection with the
acquisition of the jBridge technology from Corel. This group has substantial
Windows and Java experience. GraphOn plans to continue to add software engineers
in order to expand its research and development capabilities, although there can
be no assurances that qualified personnel will be available to GraphOn as
needed.
 
OPERATIONS
 
    GraphOn controls all purchasing, inventory, order processing and shipping of
GraphOn products and accounting functions related to its operations. Production
of software masters, development of documentation, packaging designs, quality
control and testing also are performed by GraphOn. CD-ROM and floppy disk
duplication, printing of documentation and packaging are accomplished through
outside vendors. GraphOn generally ships products upon receipt of order. As a
result, GraphOn has relatively little backlog at any given time, and does not
consider backlog a significant indicator of future performance.
 
COMPETITION
 
    The server-based software market in which GraphOn participates is
highly-competitive, although GraphOn believes it has significant advantages over
its competitors, both in product performance and market positioning. This market
ranges from remote access for a single PC user to server-based software for
large numbers of users over many different types of desktop hardware and
connections. GraphOn's competitors include manufacturers of conventional PC X
Server software and competition is expected from these and other companies in
the server-based software market. Competitive factors in the market in which
GraphOn competes include price, product quality, functionality, product
differentiation and breadth.
 
    GraphOn believes its principal competitors for its current products include
Hummingbird Communications, Ltd., SCO, WRQ, Network Computing Devices ("NCD")
and NetManage. Hummingbird is the established market leader in PC X Servers,
believed to have over 50% of that market. WRQ, NCD and NetManage also offer
traditional PC X Server software and have minority positions within that market.
 
                                       47
<PAGE>
    SCO introduced Tarantella, a server-based Java-to-Unix connectivity product
which competes with GO-Joe. However, SCO's principal product is a UNIX operating
system that competes with UNIX vendors like Sun Microsystems and IBM. GraphOn
believes that SCO, as a competitor to the other UNIX vendors, will have
difficulty in penetrating enterprises who utilize other vendors' UNIX operating
systems, such as Sun Microsystems and IBM.
 
PROPRIETARY TECHNOLOGY
 
    GraphOn licenses key components (the "developed technology") of its
server-based technology from three software developers to whom it pays royalties
pursuant to three different exclusive license agreements (the "technology
agreements"). Certain minor elements of GraphOn's server-based technology (the
"nonexclusive technology") also are licensed from two of the software developers
pursuant to non-exclusive agreements (the "nonexclusive agreements"), one of
which calls for royalty payments by GraphOn. Such royalty payments are based on
a percentage of net revenues received by GraphOn for sales of GraphOn products
that contain the licensed technology. The royalty rate under all of these
agreements is an aggregate of 4.8% and 2.9% for 1999 and 2000, respectively.
GraphOn holds options to purchase the developed technology and to purchase a
perpetual license to certain of the nonexclusive technology which are
exercisable beginning in December 2000. If GraphOn does not exercise its options
under the technology agreements, the royalty rate would continue at 2% in 2001
and beyond with respect to the developed technology. The technology agreements
and one of the nonexclusive agreements, unless terminated earlier pursuant to
their terms, will terminate on September 6, 2006. The other nonexclusive
agreement continues unless terminated for material breach. GraphOn and each
software developer tentatively have agreed to amend each of these agreements.
Under the terms of such proposed amendments, GraphOn will purchase the developed
technology and the nonexclusive technology for aggregate payments of $172,381
and $348,000 payable in 1999 and 2000, respectively.
 
    GraphOn relies primarily on trade secret protection, copyright law,
confidentiality and proprietary information agreements to protect its
proprietary technology and registered trademarks. The loss of any material trade
secret, trademark, trade name or copyright could have a material adverse effect
on GraphOn's results of operations and financial condition. There can be no
assurance that GraphOn's efforts to protect its proprietary technology rights
will be successful. Despite GraphOn's precautions it may be possible for
unauthorized third parties to copy certain portions of GraphOn's products, or to
obtain information GraphOn regards as proprietary. See "Legal Proceedings."
GraphOn does not believe its products infringe on the rights of any third
parties, but there can be no assurance that third parties will not assert
infringement claims against GraphOn in the future, or that any such assertion
will not result in costly litigation or require GraphOn to obtain a license to
proprietary technology rights of such parties.
 
EMPLOYEES AND FACILITIES
 
    As of February 28, 1999, GraphOn had a total of 43 employees, including 13
in marketing, sales and support, 25 in research and development and 5 in
administration and finance. No employees are covered by a collective bargaining
agreement.
 
    GraphOn currently occupies approximately 7,200 square feet of office space
in Campbell, California pursuant to a lease which expires in April 1999, but is
renewable each year at GraphOn's option until April 2006, 2,300 square feet in
Bellevue, Washington pursuant to a lease that will expire in May 2001 and 13,000
square feet in Concord, New Hampshire pursuant to a lease that will expire in
October 2003 and is cancellable as of October 31, 2001. Annual lease payments
currently are approximately $261,600. GraphOn currently is seeking a sublet
tenant for a portion of the Concord facility. GraphOn believes the current
facilities will be adequate to accommodate its needs until the end of August,
1999 and is investigating the opportunity to expand its facilities to
accommodate anticipated future needs in Bellevue.
 
                                       48
<PAGE>
LEGAL PROCEEDINGS
 
    In late 1996, GraphOn disclosed aspects of its proprietary technology on a
confidential basis to Insignia Solutions, Inc. and Insignia Solutions plc,
certain of whose assets were later acquired by Citrix Systems. GraphOn made
inquiry of Citrix and Insignia regarding its potential misuse of GraphOn's
technology. Citrix instituted litigation in the United States District Court for
the Southern District of Florida seeking a judicial declaration that neither
Citrix nor Insignia has misappropriated or infringed upon GraphOn's technology
or breached a binding agreement. On January 15, 1999, GraphOn responded by
filing a motion to dismiss the action. The outcome of this situation is
presently uncertain and GraphOn is incurring substantial legal expenses. Loss of
the case could also enhance Citrix's position as a competitor of GraphOn.
 
                                       49
<PAGE>
                             MANAGEMENT OF GRAPHON
 
    The following table sets forth certain information regarding GraphOn's
executive officers, directors and other key employees:
 
<TABLE>
<CAPTION>
NAME                                                       AGE                            POSITION
- -----------------------------------------------------      ---      -----------------------------------------------------
<S>                                                    <C>          <C>
EXECUTIVE OFFICERS AND DIRECTORS
Walter Keller........................................          48   President and Chairman of the Board of Directors
Robin Ford...........................................          49   Executive Vice President, Marketing and Sales
Christopher Bradlee..................................          39   Vice President, North America Sales
Vince Pfeifer........................................          33   Vice President, Product Development
Edmund Becmer........................................          40   Chief Financial Officer
Thomas A. Bevilacqua.................................          43   Director and Secretary
Robert Dilworth......................................          57   Director
Eric Kim.............................................          43   Director
August P. Klein......................................          62   Director
Michael P. O'Reilly..................................          46   Director
 
KEY EMPLOYEES
Prakash Jadeja.......................................          44   Director of Engineering
Michael Hoegeman.....................................          38   Principal Architect
Robert Currey........................................          32   Principal Architect
William Tidd.........................................          36   Director of Software Development
</TABLE>
 
    WALTER KELLER has served as President and Chairman of the GraphOn board
since GraphOn's founding in 1982 and was Chief Financial Officer from 1991 until
February 8, 1999. Prior to founding GraphOn, Mr. Keller's experience included
executive staff and senior level management, sales and engineering positions at
United Technologies Corporation and Honeywell Inc. Mr. Keller is a member of the
Society of Professional Engineers and holds a B.S. in Mechanical Engineering and
a M.S. in Electrical Engineering from Santa Clara University in Santa Clara, CA.
Mr. Keller is the husband of Ms. Ford.
 
    ROBIN FORD has served as Executive Vice President, Marketing and Sales of
GraphOn since 1996, was Vice President, Marketing and Sales from 1991 to 1996
and held various positions in sales and marketing at GraphOn from 1983 to 1991.
Ms. Ford was a director of GraphOn from October 1991 to June 1998. Prior to
joining GraphOn, Ms. Ford held various sales management and technical positions
at Intel Corporation, National Semiconductor Corporation and Grid Systems
Corporation. Ms. Ford's responsibilities with GraphOn have included building and
maintaining GraphOn's sales and marketing operations and obtaining major
government and OEM contracts. Ms. Ford is the wife of Mr. Keller.
 
    CHRISTOPHER BRADLEE has served as Vice President, North America Sales for
GraphOn since August 1998. Prior to joining GraphOn, beginning in March 1997,
Mr. Bradlee served as Vice President of Field Sales Operations for North America
at Dr. Solomon's Software, a leading producer of anti-virus software. Mr.
Bradlee was Director of Channel Sales, North America at Logicraft Information
Systems from January 1995 until February 1997. Previously, Mr. Bradlee held
several sales management positions within the high tech industry. Mr. Bradlee
attended Pennsylvania State University, and received his B.A. from West Chester
State University.
 
    VINCE PFEIFER has served as Vice President, Product Development of GraphOn
since October 1998, and was General Manager and Director of Product Development
from June 1998 to August 1998. From June 1995 to May 1998, Mr. Pfeifer served as
the Vice-President of Product Development for Exodus Technologies and
ConnectSoft Communication Corporation and has nine years of experience in
designing, developing, testing and supporting commercial grade software.
 
                                       50
<PAGE>
    EDMUND BECMER has served as Chief Financial Officer and Vice President of
Finance & Administration of GraphOn since February 8, 1999. From May 1998 until
December 1998, Mr. Becmer was Chief Financial Officer of TMCI Electronics, Inc.,
a publicly held company, based in San Jose, CA, with subsidiaries involved in
the manufacturing of semiconductor equipment. In February, 1999, TMCI
Electronics filed for reorganization under Chapter 11 of the United States
Bankruptcy Code. Prior to joining TMCI Electronics, from March 1996 to May 1998,
Mr. Becmer was a member of the accounting firm of Moore Stephens, P.C., where he
was responsible for SEC audits, mergers and acquisitions and business
consulting. Prior to Moore Stephens, from August 1993 to June 1995, Mr. Becmer
was controller of First City Industries, Inc. in New York, NY, a holding company
with subsidiaries in manufacturing, commercial real estate and residential real
estate. Prior to First City Industries, from June 1987 to June 1993, Mr. Becmer
was CFO/Controller of Lincorp Holdings, Inc., a public investment holding
company in New York, NY, with investments in banking and commercial real estate
and a Fortune Service 500 company. Mr. Becmer also was with the accounting firms
of BDO Seidman and Deloitte and Touche in New York and San Diego, CA. Mr. Becmer
holds a B.S.B.A. from San Diego State University and is a Certified Public
Accountant.
 
    THOMAS A. BEVILACQUA has been a director of GraphOn since July 1998. Mr.
Bevilacqua has been Executive Vice-President of Corporate Development and
General Counsel of E*Trade Group, Inc. since April, 1999. From 1991 to March
1999, Mr. Bevilacqua was a partner of Brobeck, Phleger & Harrison LLP, counsel
to GraphOn, and served on that firm's Executive Committee. Mr. Bevilacqua is a
director of E*Trade Online Ventures and Schuler Homes, Inc. Mr. Bevilacqua has
B.S. and J.D. degrees from the University of California.
 
    ROBERT DILWORTH has served as a director of GraphOn since July 1998. Mr.
Dilworth has served as Chairman of the Board of Metricom, Inc. ("Metricom")
since 1996, and as a Director since 1987. He served as Metricom's CEO from 1987
to 1998. Metricom is a leading provider of wireless data communication and
network solutions. Prior to joining Metricom, from 1985 to 1987, Mr. Dilworth
served as President of Zenith Data Systems Corporation, a microcomputer
manufacturer. Earlier positions include CEO at Morrow Designs, CEO at
Ultramagnetics, Division Manager at Varian Associates, Director of Minicomputer
Systems at Sperry Univac and Vice President of Finance and Administration at
Varian Data Machines. Mr. Dilworth is a Director of VLSI Technology, Inc., Data
Technology Corporation and Cortelco Systems, Inc. Mr. Dilworth holds a B.A. in
Business and Mathematics from L.A. State University.
 
    ERIC KIM has been a director of GraphOn since July 1998. He is CEO and
President of the Spencer Trask Software Group, an affiliate of Spencer Trask.
From 1994 to 1997, he served as President and CEO of Pilot Software, Inc., a
business unit of Dun & Bradstreet Corporation. He also was Corporate Vice
President of Strategy at Dun & Bradstreet Corporation from 1993 to 1994. From
1990 to 1992, Mr. Kim was General Manager at Lotus Development Corporation. From
1985 to 1990, he served as Vice President of Marketing for Ashton-Tate
Corporation. Mr. Kim holds a B.S. in Physics from Harvey Mudd College, an M.S.
in Engineering Systems from the University of California at Los Angeles and an
M.B.A. from Harvard Graduate School of Business. Mr. Kim is a nominee of Spencer
Trask.
 
    AUGUST P. KLEIN has served as a director of GraphOn since August 1998. Mr.
Klein has been, since 1995, the Founder, CEO and Chairman of the Board of JSK
Corporation and, since 1997, of APJK Corporation, general contractors and
service providers for the insurance industry. Previously, from 1989 to 1993, Mr.
Klein was founder and CEO of Uniquest, Inc., an object oriented application
software company. From 1984 to 1988, Mr. Klein served as CEO of Masscomp, Inc.,
a developer of high performance real time mission critical systems and
UNIX-based applications. Mr. Klein has served as Group Vice President (Serial
Printers) at Data Products Corporation and President and CEO at Integral Data
Systems, a manufacturer of personal computer printers. From 1957 to 1982, he was
General Manager of the Retail Distribution Business Unit and Director of Systems
Marketing at IBM. Mr. Klein is a Director of QuickSite Corporation and serves as
a trustee of the Computer Museum in Boston, Massachusetts. Mr. Klein holds a
B.S. in Mathematics from St. Vincent's College.
 
                                       51
<PAGE>
    MICHAEL P. O'REILLY has served as a director of GraphOn since December 18,
1998. Mr. O'Reilly has served as Executive Vice President, Finance, Chief
Financial Officer and Treasurer of Corel Corporation since December, 1997. Prior
to joining Corel, from 1988 until 1997, Mr. O'Reilly was a senior tax partner in
the Ottawa practice of KPMG, the international professional advisory services
firm. Mr. O'Reilly is a Chartered Accountant. He holds a B.A. from the
University of Western Ontario and an Hons. B. Comm from the University of
Windsor. Mr. O'Reilly is a nominee of Corel.
 
    PRAKASH JADEJA has served as Director of Engineering of GraphOn since
September 1997. From February 1996 to August 1997, Mr. Jadeja led the Digital
Video Disc and Compact Disc Recordable System software group at Apple Computer.
From February 1992 to January 1996, Mr. Jadeja was Vice President of Engineering
at Workstation, Inc. Prior to that, Mr. Jadeja held a number of technical and
management positions at Insignia Solutions, Inc., where he was one of the
founders. Mr. Jadeja holds a B.S. in Applied Computer Science from De Montford
University in England.
 
    MICHAEL HOEGEMAN has served as Principal Architect for GraphOn since May
1996. Prior to joining GraphOn, beginning in 1995, Mr. Hoegeman worked as a
contractor and lead developer for GraphOn's GO-Global and GO-Joe products. From
1985 to 1996, Mr. Hoegeman held several senior UNIX development positions at
GTE. Mr. Hoegeman holds a B.S. in Mathematics from the University of California
at Santa Barbara. Mr. Hoegeman has entered into license agreements with GraphOn
providing for certain royalty payments. See "Business of GraphOn-Proprietary
Technology".
 
    ROBERT CURREY has served as Principal Architect and developer for GraphOn
since June 1998. Prior to joining GraphOn, beginning in November 1996, Mr.
Currey served as team leader at Exodus Technologies. Mr. Currey was Senior
Engineer at Connectsoft Corp. from January 1994 until November 1996. Previously,
Mr. Currey was Senior Engineer at Attachmate Corp. from June 1992 to January
1994. Mr. Currey has an M.S. in computer science and a B.S. in applied
mathematics from Oregon State University.
 
    WILLIAM TIDD has served as Director of Software Development for GraphOn
since January 1999. Prior to joining GraphOn, from 1996 to 1998, Mr. Tidd served
on the jBridge development team for Corel Corporation. Mr. Tidd owned and
operated Tirel Corporation, a software development company, from 1994 to 1996
after co-founding Atlantic Design Systems, which became Tirel Corporation in
1994. Mr. Tidd holds a Master of Engineering Degree in mechanical engineering
from Carnegie Mellon University.
 
    GRAPHON BOARD
 
    The GraphOn board consists of six individuals and may be expanded to consist
of a maximum of seven individuals. The bylaws of GraphOn provide for cumulative
voting for directors. Spencer Trask has the right to designate one individual
reasonably acceptable to GraphOn to be a nominee to serve as a director of
GraphOn until the earlier of October 28, 2003 or the effective date of an
initial public offering of GraphOn's equity securities. Certain of GraphOn's
officers, directors and holders of 5% or more of the shares of GraphOn common
stock have agreed to vote their shares in favor of Spencer Trask's nominee.
GraphOn has determined that the merger will constitute an initial public
offering. Thus, if the merger is completed, Spencer Trask will no longer be
entitled to a board seat. In addition, Corel has a contractual right to
designate one individual to be a nominee to serve as a director of GraphOn until
Corel controls less than 17% of the voting power of GraphOn. GraphOn also agreed
not to reduce the size of the GraphOn board below six without Corel's prior
written consent, until the date which is two years after the date of the initial
public offering of GraphOn's equity securities or the closing of the sale of all
or substantially all of its assets or of any merger or consolidation with any
other entity. The non-employee directors are eligible to participate in the
GraphOn stock option plan.
 
                                       52
<PAGE>
    EXECUTIVE COMPENSATION AND EMPLOYMENT AGREEMENTS
 
    The compensation for GraphOn's key management is determined from time to
time by the GraphOn board. In addition, the GraphOn board may, in its
discretion, award these individuals cash bonuses, options to purchase shares of
the GraphOn common stock under the Stock Option Plan, and such other
compensation, including equity-based compensation, as the GraphOn board, or a
committee thereof, shall approve from time to time. In the event the merger is
consummated, the determination of such compensation, including any awards of
cash bonuses, options or other compensation, will be subject to the discretion
of the Unity board.
 
    The following table sets forth certain information with respect to the
compensation of GraphOn's Chief Executive Officer and each of the two other
executive officers of GraphOn who were serving as executive officers of GraphOn
during fiscal year 1998 and whose total annual salary and bonus during such
fiscal year exceeded $100,000 (collectively, the "Named Executive Officers").
 
    SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                ANNUAL COMPENSATION ($)
                                                                                -----------------------     ALL OTHER
NAME AND PRINCIPAL POSITION                                            YEAR       SALARY       BONUS     COMPENSATION ($)
- -------------------------------------------------------------------  ---------  ----------  -----------  ----------------
<S>                                                                  <C>        <C>         <C>          <C>
Walter Keller......................................................       1998  $  135,181           0               0
  President and Chief Executive Officer
 
Robin Ford.........................................................       1998     141,960           0               0
  Executive Vice President, Marketing and Sales
 
Zdravko Podolski(1)................................................       1998      94,750           0      $   75,000
  Vice President, Strategic Sales and Alliances
</TABLE>
 
- ------------------------
 
(1) Mr. Podolski's employment with GraphOn was terminated on September 1, 1998.
    Pursuant to a severance agreement with Mr. Podolski, GraphOn paid him
    $75,000 in consideration for the release of any and all claims he may have
    had against GraphOn.
 
    OPTION GRANTS IN FISCAL YEAR 1998
 
    No options were granted to the Named Executive Officers in fiscal year 1998.
 
    AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND LAST FISCAL YEAR-END
     OPTION VALUES
 
    No options or stock appreciation rights were exercised by the Named
Executive Officers during fiscal year 1998, and no options or stock appreciation
rights were owned by the Named Executive Officers on December 31, 1998.
 
    EMPLOYMENT AGREEMENTS
 
    On October 22, 1998, GraphOn entered into employment agreements with Mr.
Keller and Ms. Ford which provide for a term of two years, annual base salaries
of $140,000 and $130,000, respectively, and eligibility to receive bonuses at
the discretion of the GraphOn board. Such agreements contain provisions for
bonuses upon achievement of certain milestones, non-competition for the term of
each agreement and confidentiality. The base salaries are subject to change at
the discretion of the GraphOn board. Mr. Keller and Ms. Ford also are entitled
to participate in any pension insurance or benefit plan of GraphOn, including
the GraphOn Stock Option Plan. Each employment agreement also provides for a
severance payment in the amount of one year's compensation in the event that the
employee is terminated by GraphOn without cause, or the employee resigns for
Good Reason (as defined in the agreement) during
 
                                       53
<PAGE>
the employment term. Good Reason includes, among other things, the failure of a
successor to GraphOn to assume the employment agreements in connection with
certain change in control transactions such as a merger, consolidation or a sale
of all or substantially all of GraphOn's assets, including this merger. Good
Reason also includes certain changes in the duties, position, compensation and
location of the employment. In the event this merger is consummated, any changes
in base salary or bonus awards will be subject to the discretion of the Unity
board.
 
    1998 STOCK OPTION/STOCK ISSUANCE PLAN
 
    GraphOn's 1998 Stock Option/Stock Issuance Plan is intended to promote the
interests of GraphOn by providing eligible persons with the opportunity to
acquire a proprietary interest, or otherwise increase their proprietary
interest, in GraphOn as an incentive for them to remain in service of GraphOn.
The plan was adopted by the GraphOn board on June 23, 1998 and was approved by
the shareholders on June 23, 1998.
 
    A total of 1,300,000 shares of common stock have been authorized for
issuance under the plan to officers and other employees of GraphOn, the
non-employee board members and independent consultants in GraphOn's service.
However, in no event may any one participant in the plan receive option grants
or direct stock issuances for more than 500,000 shares of common stock in the
aggregate per calendar year.
 
    The shares of common stock reserved for issuance under the plan are made
available from authorized but unissued common stock or from shares of common
stock reacquired by GraphOn, including shares repurchased on the open market.
Should an option expire or terminate for any reason prior to exercise in full,
the shares subject to the portion of the option not so exercised will be
available for subsequent issuance under the plan. Unvested shares issued under
the plan and subsequently repurchased by GraphOn will be added back to the share
reserve and will accordingly be available for subsequent issuance under the
plan.
 
    As of May   , 1999, options for 353,500 shares of common stock were
outstanding under the plan, no options had been exercised, an additional 602,456
shares had been issued directly under the stock issuance program and 344,044
shares remained available for future issuance under the plan.
 
    The compensation committee of the board will have exclusive authority to
administer the plan with respect to option grants and stock issuances made to
GraphOn's executive officers and non-employee board members. The compensation
committee and a secondary committee of one or more board members will each have
separate but concurrent authority to make option grants and stock issuances
under those programs to all other eligible individuals. The term "plan
administrator," as used in this description of the plan, will mean either the
compensation committee or the secondary committee, to the extent each such
entity is acting in its capacity as administrator of the plan.
 
    The plan is divided into two separate components: (i) the option grant
program under which eligible individuals may, at the discretion of the plan
administrator, be granted options to purchase shares of common stock at an
exercise price not less than 85% of their fair market value on the grant date
and (ii) the stock issuance program under which such individuals may, in the
discretion of the plan administrator, be issued shares of common stock directly,
through the purchase of vested or unvested shares at a price not less than 85%
of their fair market value at the time of issuance or as a fully-vested bonus
for past services rendered to GraphOn.
 
    The shares subject to each option granted under the option grant program and
unvested shares issued under the stock issuance program will vest in one or more
installments over the recipient's period of service with GraphOn. However, no
vesting schedule will be at a rate less than 20% per year, with the initial
vesting to occur no later than one year after the grant date of the option or
the issue date of the unvested shares. No granted option may have a term in
excess of ten years, and each granted option will be
 
                                       54
<PAGE>
subject to earlier termination within a designated period following the
optionee's cessation of service with GraphOn.
 
    The exercise price may be paid in cash or in shares of common stock. Options
may also be exercised for vested shares through a same-day sale program,
pursuant to which a designated brokerage firm effects the immediate sale of
those shares and pays over to GraphOn, out of the sale proceeds available on the
settlement date, sufficient funds to cover the exercise price for the purchased
shares. In addition, the plan administrator may provide financial assistance to
one or more participants in connection with the exercise of their outstanding
options or the purchase of their unvested shares by allowing such individuals to
deliver a full-recourse, interest-bearing promissory note in payment of the
exercise or purchase price and any associated withholding taxes incurred in
connection with such exercise or purchase.
 
    In the event that GraphOn is acquired by merger or sale of substantially all
of its assets, each outstanding option under the option grant program which is
not to be assumed by the successor corporation or otherwise continued in effect
will automatically accelerate in full, and all unvested shares under the plan
will immediately vest, except to the extent GraphOn's repurchase rights with
respect to those shares are assigned to the successor corporation or otherwise
continued in effect. The plan administrator will have complete discretion to
grant one or more options under the option grant program which will become
exercisable on an accelerated basis for all of the option shares upon (i) an
acquisition of GraphOn, whether or not those options are assumed or otherwise
continued in effect, or (ii) the termination of the optionee's service within a
designated period following an acquisition in which those options are assumed or
continued in effect. The vesting of outstanding shares under the stock issuance
program may be accelerated upon similar terms and conditions. Unity will assume
all outstanding GraphOn options in the merger, and none of the shares subject to
those options will vest on an accelerated basis at the time of the merger. The
option holders will continue to vest in the Unity shares subject to their
assumed options in accordance with the same vesting schedule in effect for their
GraphOn options immediately prior to the merger.
 
    The plan administrator also is authorized under the option grant and stock
issuance programs to grant options and to structure repurchase rights so that
the shares subject to those options or repurchase rights will immediately vest
in connection with a change in ownership or control of GraphOn (whether by
successful tender offer for more than 50% of the outstanding voting stock or by
a change in the majority of the board by reason of one or more contested
elections for board membership). Such accelerated vesting may occur either at
the time of such change in ownership or control or upon the subsequent
involuntary termination of the individual's service within a designated period
(not to exceed 18 months) following such change in ownership or control.
 
    In the event any change is made to the outstanding shares of common stock by
reason of any recapitalization, stock dividend, stock split, combination of
shares, exchange of shares or other change in corporate structure effected
without GraphOn's receipt of consideration, appropriate adjustments will be made
to (i) the maximum number and/or class of securities issuable under the plan,
(ii) the number and/or class of securities for which any one person may be
granted stock options and direct stock issuances under the plan per calendar
year and (iii) the number and/or class of securities and the exercise price per
share in effect under each outstanding option. Such adjustments will be designed
to preclude any dilution or enlargement of benefits under the plan or the
outstanding options thereunder.
 
    The plan administrator has the authority to effect the cancellation of
outstanding options under the option grant program in return for the grant of
new options for the same or different number of option shares with an exercise
price per share based upon the fair market value of the common stock on the new
grant date.
 
    The board may amend or modify the plan at any time. The plan will terminate
on June 22, 2007, unless sooner terminated by the board or in connection with an
acquisition of GraphOn in which the plan is not assumed by the acquiring entity.
 
                                       55
<PAGE>
    If the merger is consummated, the plan and all outstanding options will be
assumed by Unity. As part of the merger, Unity will assume the GraphOn 1998
Stock Option/Stock Issuance Plan and all outstanding options under that plan.
The Unity board will become the plan administrator and all references in the
plan to an acquisition or other change in control of GraphOn will be applied on
the basis of an acquisition or other change in control of Unity.
 
                     CERTAIN RELATIONSHIPS AND TRANSACTIONS
 
    Mr. Keller, Chairman of the GraphOn board and President of GraphOn, sold to
Mr. Bevilacqua (i) on January 1, 1998, 35,004 shares of GraphOn common stock for
an aggregate purchase price of $700 and (ii) on August 20, 1998, 68,238 shares
of GraphOn common stock for an aggregate purchase price of $5,118. Mr.
Bevilacqua is a director and Secretary of GraphOn and a former partner in the
law firm of Brobeck, Phleger & Harrison LLP, which firm GraphOn retains for
legal services. The 68,238 shares originally were subject to Mr. Keller's right
of repurchase which lapses monthly in a series of equal monthly installments
upon Mr. Bevilacqua's completion of each month of service on the GraphOn board
until May 2000. In addition, Mr. Keller has a right of first refusal exercisable
in connection with any proposed transfer of such shares for which the repurchase
right has lapsed.
 
    As of August 20, 1998, Mr. Keller sold 100,000 shares of GraphOn common
stock to Mr. Bradlee, an executive officer of GraphOn, for an aggregate purchase
price of $7,500 evidenced by a full-recourse note secured by the shares
purchased. The note bears interest at the rate of 5.41% per annum, compounded
semi-annually. The 100,000 shares originally were subject to Mr. Keller's right
of repurchase which began to lapse November 20, 1998 in a series of 45
successive, equal monthly installments upon Mr. Bradlee's completion of each
month of service with GraphOn. In addition, Mr. Keller has a right of first
refusal exercisable in connection with any proposed transfer of such shares for
which the repurchase right has lapsed.
 
    As of August 20, 1998, Mr. Keller sold 25,000 shares of GraphOn common stock
to Mr. Klein, a director of GraphOn, for an aggregate purchase price of $1,875.
The 25,000 shares are subject to Mr. Keller's right of repurchase which began to
lapse November 20, 1998 in a series of 21 successive, equal monthly installments
upon Mr. Klein's completion of each month of consulting services to GraphOn. In
addition, Mr. Keller has a right of first refusal exercisable in connection with
any proposed transfer of such shares for which the repurchase right has lapsed.
 
    As of August 20, 1998, Messrs. Kim, Dilworth and Klein, directors of
GraphOn, were each issued 75,000 shares of GraphOn common stock under the
GraphOn Stock Option Plan at a purchase price of $0.075 per share. Such shares
are subject to GraphOn's right of repurchase which began to lapse November 20,
1998 in a series of 45 successive, equal monthly installments upon completion of
each month of service on the GraphOn board until May 2000.
 
    In March 1998, Spencer Trask Investors, an affiliate of Spencer Trask,
purchased 500,000 shares of GraphOn common stock from GraphOn for an aggregate
purchase price of $25,000. Concurrently with such transaction, Spencer Trask
Investors loaned GraphOn $475,000 evidenced by a Convertible Promissory Note,
bearing interest at a rate of 10% per annum. The Convertible Promissory Note was
redeemed by GraphOn on January 27, 1999.
 
    In March 1998, Spencer Trask Investors entered into a sale arrangement with
Mr. Keller and Ms. Ford, Executive Vice President, Marketing and Sales, of
GraphOn, with respect to the sale of an aggregate of 3,500,000 shares of GraphOn
common stock for aggregate consideration of $3,500,000, comprised of $200,000
cash, a non-recourse promissory note in the principal amount of $800,000 which
became due on January 20, 1999, a non-recourse promissory note in the principal
amount of $1,000,000 which becomes due on July 20, 1999, and a non-recourse
promissory note in the principal amount of $1,500,000 which becomes due on
January 20, 2000. Each of the foregoing notes bears interest at the rate of 6%
per annum, payable quarterly, and each note is secured by a pledge of the shares
purchased, with
 
                                       56
<PAGE>
one share pledged for each $1.00 of principal amount. The shares of GraphOn
common stock pledged with respect to each note were placed in escrow until
payment in full of the principal and accrued interest of the note representing
the purchase price of such shares. The $800,000 note was paid by Spencer Trask
Investors and the 800,000 shares pledged with respect to such note were released
from escrow on January 20, 1999. In the event that a note is not paid, the
shares securing it will be released to Mr. Keller and Ms. Ford, who also
maintain voting control over such pledged shares unless and until the related
notes are fully paid and the shares are released to Spencer Trask Investors.
Spencer Trask Investors has certain registration rights in connection with the
above-mentioned shares of GraphOn common stock. See "Description of GraphOn's
Securities-Registration Rights."
 
    In connection with the issuance and sale by GraphOn of an aggregate of
5,162,868 shares of GraphOn common stock for an aggregate purchase price of
$5,162,868 in three separate closings, the final such closing occurring January
27, 1999, in connection with and pursuant to the terms of a Private Placement
Memorandum and related agreements (the "Private Placement"), GraphOn entered
into a Placement Agency Agreement, dated September 2, 1998, with Spencer Trask.
Pursuant to the Placement Agency Agreement, Spencer Trask received a fee equal
to 10% of the aggregate offering price for the GraphOn common stock sold in the
Private Placement. In addition, GraphOn issued to Spencer Trask the Spencer
Trask Warrants. See "Description of GraphOn's Securities-Spencer Trask Warrants
and Similar Warrants." Spencer Trask, together with its affiliates, holds an
aggregate of 2,266,279 shares of GraphOn common stock and warrants to purchase
GraphOn common stock.
 
    Mr. Bevilacqua (together with his wife, Therese Mrozek, currently a partner
in the law firm of Brobeck, Phleger & Harrison LLP) purchased 5,000 shares of
GraphOn common stock in the Private Placement for an aggregate purchase price of
$5,000 and Brobeck, Phleger & Harrison LLP purchased 50,000 shares for an
aggregate purchase price of $50,000.
 
    Spencer Trask Investors and Mr. Keller, upon the commencement of the Private
Placement, loaned $200,000 and $100,000, respectively, to GraphOn pursuant to
convertible promissory notes which bore interest at 8% per annum and matured at
the earlier of the first closing of the Private Placement or 12 months from the
date of the notes. Spencer Trask converted the $200,000 note into 200,000 shares
of GraphOn common stock on December 31, 1998 and GraphOn paid the $100,000 note
held by Mr. Keller on that same date. In addition, Spencer Trask Investors was
issued, upon the commencement of the Private Placement, a warrant to purchase
100,000 shares of GraphOn common stock at $1.00 per share, and Mr. Keller was
issued a warrant to purchase 50,000 shares of GraphOn common stock at $1.00 per
share. See "Description of GraphOn's Securities-Spencer Trask Warrants and
Similar Warrants."
 
    On December 31, 1998, in consideration of certain tangible and intangible
assets, GraphOn sold to Corel Corporation 3,886,503 shares of GraphOn common
stock and a warrant to purchase up to 388,650 shares of GraphOn common stock.
GraphOn also granted Corel certain rights to appoint a nominee to the GraphOn
board and certain registration and preemptive rights with respect to such
shares. See "Management of GraphOn-Board of Directors" and "Description of
GraphOn's Securities--Corel Warrant and Similar Warrant." Additionally, as of
June 30, 2000, if GraphOn has not completed the initial public offering of its
securities or the closing of the sale, conveyance or disposal of all or
substantially all of its property or any merger or consolidation with any other
entity, GraphOn shall become obligated to issue Corel an additional 1,607,000
shares of GraphOn common stock, for no additional consideration. If the merger
is consummated, Corel will not receive such shares.
 
    If the merger is consummated, in consideration of consulting services
performed in connection with the merger, Unity will issue to Spencer Trask
250,000 Class A redeemable common stock purchase warrants, exercisable for an
aggregate of up to 250,000 shares of Unity common stock at an exercise price of
$5.50 per share, and pay Spencer Trask up to $575,000.
 
                                       57
<PAGE>
                       PRINCIPAL SHAREHOLDERS OF GRAPHON
 
    The following table sets forth certain information known to GraphOn as of
May   , 1999 and as of such date, giving effect to the merger, based on
information obtained from the persons named below, with respect to the
beneficial ownership of shares of GraphOn common stock held by
 
    - each person known by GraphOn to be the owner of 5% or more of the
      outstanding shares of GraphOn common stock;
 
    - each director of GraphOn; and
 
    - all executive officers and directors of GraphOn as a group.
 
    Unless otherwise indicated, the address for each shareholder is c/o GraphOn
Corporation, 150 Harrison Avenue, Campbell, CA 95008.
 
<TABLE>
<CAPTION>
                                                            BENEFICIAL OWNERSHIP OF
                                                                 GRAPHON COMMON          BENEFICIAL OWNERSHIP OF UNITY
                                                         STOCK PRIOR TO THE MERGER (1)               COMMON
                                                                                           STOCK AFTER THE MERGER (2)
                                                         ------------------------------  ------------------------------
<S>                                                      <C>                <C>          <C>                <C>
                                                         NUMBER OF SHARES     PERCENT    NUMBER OF SHARES     PERCENT
                                                         -----------------  -----------  -----------------  -----------
 
Corel Corporation (3)..................................       4,275,153           25.5%       2,383,825           21.3%
  1600 Carling Avenue
  Ottawa, Ontario
  K1Z 8R7, Canada
 
Spencer Trask Holdings, Inc. (4).......................       2,266,279           13.4%       1,513,677(5)        13.4%
  535 Madison Avenue
  New York, NY 10022
 
Walter Keller (6)......................................       2,516,746           15.3%       1,403,337           12.7%
 
Thomas A. Bevilacqua...................................         108,242              *           60,355              *
 
Robert Dilworth........................................          75,000              *           41,280              *
 
Eric Kim (7)...........................................         130,700              *           72,878              *
 
August P. Klein........................................         100,000              *           55,760              *
 
Michael O'Reilly.......................................               0             --                0             --
 
Robin Ford (8).........................................       1,900,000           11.6%       1,059,440            9.6%
 
All executive officers and directors as a group (10           4,980,688           30.2%       2,777,232           25.1%
  persons)(9)..........................................
</TABLE>
 
- ------------------------
 
*   Denotes less than 1% of outstanding GraphOn common stock
 
(1) As used herein, beneficial ownership means the sole or shared power to vote,
    or direct the voting of, a security, or the sole or shared power to invest
    or dispose, or direct the investment or disposition, of a security. Except
    as otherwise indicated, all persons named herein have (i) sole voting power
    and investment power with respect to their respective shares of GraphOn
    common stock, except to the extent that authority is shared by spouses under
    applicable law, and (ii) record and beneficial ownership with respect to
    their respective shares of GraphOn common stock. With respect to each
    shareholder, any shares issuable upon exercise of all options and warrants
    held by such shareholder that are currently exercisable or will become
    exercisable within 60 days of May   ,1999 are deemed outstanding for
    computing the percentage of the person holding such options but are not
    deemed outstanding for computing the percentage of any other person.
    Percentage ownership of GraphOn
 
                                       58
<PAGE>
    common stock prior to the merger is based on 16,363,959 shares of GraphOn
    common stock outstanding as of May   , 1999.
 
(2) Assumes no cash conversions of Unity common stock by Unity stockholders or
    exercise by Unity stockholders or GraphOn shareholders of their respective
    appraisal rights. Percentage ownership of Unity common stock after the
    merger is based on 10,999,543 shares of Unity common stock to be outstanding
    upon consummation of the merger.
 
(3) Includes a warrant exercisable for up to 388,650 shares of GraphOn common
    stock at an exercise price of $1.00 per share.
 
(4) Includes 1,500,000 shares held by Spencer Trask Investors, an affiliate of
    Spencer Trask Holdings, Inc., the 100% owner of Spencer Trask, 180,000
    shares held by Kevin Kimberlin Partners, L.P. ("KKP"), an affiliate of
    Spencer Trask Holdings, a warrant exercisable for up to 100,000 shares of
    GraphOn common stock at an exercise price of $1.00 per share held by Spencer
    Trask Investors, two warrants exercisable for up to an aggregate of 29,760
    shares of GraphOn common stock at an exercise price of $1.00 per share held
    by KKP, a warrant exercisable for up to an aggregate of 21,990 shares of
    GraphOn common stock at an exercise price of $1.00 per share held by Kevin
    Kimberlin, a general partner of KKP and a majority holder of Spencer Trask
    Holdings, and three warrants exercisable for up to an aggregate of 414,529
    shares of GraphOn common stock at an exercise price of $1.00 per share held
    by Spencer Trask Holdings. Excludes 566,295 shares of GraphOn common stock
    issuable upon exercise of the Spencer Trask Warrants in which Spencer Trask
    has no beneficial interest. See "Description of GraphOn's
    Securities--Spencer Trask Warrants and Similar Warrants."
 
(5) Includes 250,000 shares of Unity common stock issuable upon exercise of
    250,000 Class A redeemable common stock purchase warrants at an exercise
    price of $5.50, to be issued to Spencer Trask upon completion of the merger.
 
(6) Includes 500,000 shares of GraphOn common stock placed in escrow with
    Brobeck, Phleger & Harrison LLP ("BPH"), as escrow agent, to be sold to
    Spencer Trask Investors on July 20, 1999, and 750,000 shares of GraphOn
    common stock placed in escrow with BPH to be sold to Spencer Trask Investors
    on January 20, 2000. During the respective escrow periods, Mr. Keller cannot
    sell or otherwise transfer such shares but retains all other shareholder
    rights, including, without limitation, the right to vote such shares. Also
    includes (i) a warrant exercisable for up to 50,000 shares of GraphOn common
    stock at an exercise price of $1.00 per share and (ii) 40,000 shares of
    GraphOn common stock held by relatives of Mr. Keller who, at the option of
    Spencer Trask, can be required to enter into a voting agreement granting Mr.
    Keller the right to vote such shares. Mr. Keller and Ms. Ford are husband
    and wife. See Footnote 8.
 
(7) Includes a warrant exercisable for up to 55,700 shares of GraphOn common
    stock at an exercise price of $1.00 per share.
 
(8) Includes 500,000 shares of GraphOn common stock placed in escrow with BPH,
    as escrow agent, to be sold to Spencer Trask Investors on July 20, 1999, and
    750,000 shares of GraphOn common stock placed in escrow with BPH to be sold
    to Spencer Trask Investors on January 20, 2000. During the respective escrow
    periods, Ms. Ford cannot sell or otherwise transfer such shares but retains
    all other shareholder rights, including, without limitation, the right to
    vote such shares. Also includes 30,000 shares held by relatives of Ms. Ford
    who, at the option of Spencer Trask, can be required to enter into a voting
    agreement granting Ms. Ford the right to vote such shares. Mr. Keller and
    Ms. Ford are husband and wife. See Footnote 6.
 
(9) See footnotes 6 through 8 above. Includes warrants held by Mr. Keller and
    Mr. Kim exercisable for up to 105,700 shares of GraphOn common stock at an
    exercise price of $1.00 per share and options exercisable for up to 25,000
    shares of GraphOn common stock under the GraphOn Stock Option Plan held by
    one officer of GraphOn.
 
                                       59
<PAGE>
                      DESCRIPTION OF GRAPHON'S SECURITIES
 
GENERAL
 
    GraphOn is authorized to issue 50,000,000 shares of GraphOn common stock, no
par value per share, and 5,000,000 shares of "blank check" preferred stock, no
par value per share. As of May   , 1999, 16,363,959 shares of GraphOn common
stock were outstanding, held of record by approximately 195 persons. No shares
of GraphOn preferred stock are outstanding.
 
COMMON STOCK
 
    The holders of GraphOn common stock are entitled to one vote for each share
held of record on all matters to be voted on by shareholders. Cumulative voting
with respect to the election of directors is permitted, with the result that it
is a lengthier and more difficult process to effect a change in the composition
of the GraphOn board and a potential change in control of the corporation. If
the merger is consummated, cumulative voting with respect to the election of
directors will continue to be permitted.
 
    The holders of GraphOn common stock are entitled to receive dividends when,
as and if declared by the GraphOn board out of funds legally available therefor.
In the event of liquidation, dissolution or winding up of GraphOn, the holders
of GraphOn common stock are entitled to share ratably in all assets remaining
available for distribution to them after payment of liabilities and after
provision has been made for each class of stock, if any, having preference over
the GraphOn common stock. Holders of shares of GraphOn common stock, as such,
have no redemption, preemptive or other subscription rights. There are no
conversion provisions applicable to the GraphOn common stock. All of the
outstanding shares of GraphOn common stock are fully paid and nonassessable.
 
    If the merger is completed, except with respect to those shares as to which
dissenters' rights have been perfected, each then outstanding share of GraphOn
common stock will be converted into the right to receive approximately .5576 of
a share of Unity common stock. For a description of Unity common stock, see
"Description of Unity's Securities--Common Stock."
 
PREFERRED STOCK
 
    The GraphOn preferred stock may be issued with such designation, rights and
preferences as may be determined from time to time by the GraphOn board.
Additionally, the GraphOn board may determine the timing, series and number of
shares of GraphOn preferred stock to be issued. Accordingly, the GraphOn board
is empowered, without shareholder approval, to issue GraphOn preferred stock
with dividend, liquidation, conversion, voting or other rights that could
adversely affect the voting power or other rights of the holders of GraphOn
common stock. Similar to Unity preferred stock, the GraphOn preferred stock
could be utilized, under certain circumstances, as a method of discouraging,
delaying or preventing a change in control of GraphOn if the merger is not
completed. Although GraphOn does not currently intend to issue any shares of
GraphOn preferred stock, there can be no assurance that GraphOn will not do so
at some future date if the merger is not consummated.
 
DIVIDENDS
 
    GraphOn never has paid a dividend and is not likely to pay one in the
foreseeable future. If the merger is completed, the payment of any subsequent
dividends will be in the discretion of the Unity board and will be dependent
upon Unity's results of operations, financial condition, contractual
restrictions and other factors deemed relevant by the Unity board. See
"Description of Unity's Securities--Dividends."
 
PREEMPTIVE RIGHTS
 
    Holders of the private placement shares and Corel have the right to
participate on a pro rata basis in future private offerings of GraphOn
securities until such time as GraphOn completes an initial public
 
                                       60
<PAGE>
offering. GraphOn has determined that the merger will constitute an "initial
public offering." Thus, if the merger is completed, such rights will be of no
further force and effect.
 
SPENCER TRASK WARRANTS AND SIMILAR WARRANTS
 
    GraphOn issued warrants to Spencer Trask (the "Spencer Trask Warrants") to
purchase up to an aggregate of 1,032,574 shares of GraphOn common stock. Spencer
Trask subsequently transferred its interests in 566,295 of such warrants to
nonaffiliated parties. The exercise price of such warrants is $1.00 per share.
The Spencer Trask Warrants are exercisable until the later of January 27, 2006
or three years after an initial public offering before such date. The exercise
price and number of shares of GraphOn common stock issuable on exercise of the
warrants are subject to adjustment in certain circumstances, including in the
event of a stock dividend, recapitalization, subdivision or consolidation of
GraphOn, or issuance of GraphOn common stock, or options (with certain
exceptions), rights or warrants to subscribe for shares of GraphOn common stock,
or securities convertible into or exchangeable for shares of GraphOn common
stock, at a price below their respective exercise prices.
 
    The Spencer Trask Warrants may be exercised upon surrender of the
certificate evidencing the respective warrant on or prior to the expiration date
at the offices of GraphOn, with the annexed exercise form completed and executed
as indicated, accompanied by full payment of the exercise price to GraphOn (by
certified or official bank check, payable to GraphOn, in shares of GraphOn
common stock, or by the "net issuance" method) for the number of warrant shares
being exercised. The holders of Spencer Trask Warrants do not have the rights or
privileges of holders of GraphOn common stock. No fractional shares will be
issued upon exercise of such warrants. However, GraphOn will pay to such
warrantholder, in lieu of the issuance of any fractional share which otherwise
is issuable to such warrantholder, an amount in cash based on the fair market
value of GraphOn common stock as determined in good faith by the GraphOn board.
 
    Spencer Trask Investors, an affiliate of Spencer Trask, and Mr. Keller hold
warrants exercisable for up to 100,000 and 50,000 shares, respectively, of
GraphOn common stock, the terms of which are substantially the same as those of
the Spencer Trask Warrants.
 
    If not exercised prior to the effective date of the merger, Unity shall
assume GraphOn's obligations with respect to the Spencer Trask Warrants and the
warrants held by Spencer Trask Investors and Mr. Keller, which shall be
exercisable for up to 575,763, 55,760 and 27,880 shares of Unity common stock,
respectively, at an exercise price of approximately $1.79 per share.
 
COREL WARRANT AND SIMILAR WARRANT
 
    Corel and one additional shareholder holding less than 1% of the outstanding
shares of GraphOn hold an aggregate of two warrants to purchase up to 388,650
and 1,213 shares of GraphOn common stock, respectively. The exercise price of
such warrants is $1.00 per share, and they are exercisable until December 18,
2003. The exercise price and number of shares of GraphOn common stock issuable
on exercise of such warrants are subject to adjustment in certain circumstances,
including in the event of a stock dividend, subdivision or combination of
GraphOn capital stock, reclassification, capital reorganization or change in
GraphOn capital stock, or consolidation, merger or sale of all or substantially
all of GraphOn's assets. Such warrants may be exercised upon surrender of the
certificates evidencing them, with the annexed exercise form completed and
executed as indicated, accompanied by full payment of the exercise price to
GraphOn (by cash or check, payable to GraphOn, or by the "net issuance" method)
for the number of warrant shares being exercised. Holders of the warrants, as
such, are not entitled to the rights or privileges of holders of GraphOn common
stock. No fractional shares will be issued upon exercise of such warrants.
However, GraphOn will pay to such warrantholders, in lieu of the issuance of any
fractional share which otherwise is issuable to such warrantholders, an amount
in cash based on the fair market value of GraphOn common stock as determined in
good faith by the GraphOn board.
 
                                       61
<PAGE>
    If not exercised prior to the effective date of the merger, Unity shall
assume GraphOn's obligations under such warrants which shall be exercisable for
up to 216,711 and 676 shares of Unity common stock, respectively, at an exercise
price of approximately $1.79 per share.
 
REGISTRATION RIGHTS
 
    Holders of shares of GraphOn common stock acquired in the Private Placement,
as well as Mr. Keller and Spencer Trask Investors, hold certain automatic,
demand and incidental registration rights under a Registration Rights Agreement.
GraphOn agreed to file a registration statement under the Securities Act for the
resale of the private placement shares and such other shares:
 
    - in the event of the closing of an initial public offering prior to January
      27, 2001, not later than the expiration of the Lock-Up Period (as defined
      in the Registration Rights Agreement); provided, however, that any holder
      of such shares may exclude all or a portion thereof from such registration
      and GraphOn shall have no obligation to register shares that are freely
      tradable without restriction; and
 
    - in the event that no initial public offering has been completed by January
      27, 2002, on two occasions upon demand (a "demand registration") of the
      holders of at least a majority of the total Registrable Securities (as
      defined in the Registration Rights Agreement) then outstanding.
 
GraphOn also has agreed that, if at any time it registers securities, it will
include the private placement shares and certain shares of GraphOn common stock
held by Mr. Keller and Spencer Trask Investors, subject to reduction in certain
instances, upon the written request of such investors to GraphOn. All expenses
incurred in connection with such registrations shall be borne by GraphOn, except
for underwriting discounts and commissions and the costs of the second demand
registration. The Registration Rights Agreement contains customary
indemnification and contribution provisions involving the participants in any
registration effected pursuant to such agreement. The Registration Rights
Agreement also provides that purchasers of private placement shares appoint
Spencer Trask as their agent to negotiate on their behalf the terms of any
restrictions on the right of such purchasers to sell any of their shares which
shall be imposed by the managing underwriter of the initial public offering
including, in particular, the term of the Lock-Up Period. If GraphOn fails to
fulfill any portion of its obligations under the Registration Rights Agreement,
GraphOn and certain of its directors, officers and principal shareholders have
agreed to give holders of the private placement shares the ability to elect a
majority of the GraphOn board in order to provide liquidity until such time as
GraphOn's registration responsibility has been fulfilled.
 
    In addition, holders of the Spencer Trask Warrants, Spencer Trask Investors,
Mr. Keller, Corel and one additional GraphOn shareholder are entitled to certain
other registration rights. GraphOn has agreed, if it has any registered
securities, to register the shares underlying the Spencer Trask Warrants and
certain other warrants held by Spencer Trask Investors and Mr. Keller on two
occasions during the term of such warrants if requested by the holders of a
majority thereof. The shares underlying such warrants also have "piggy-back"
registration rights until the later of October 28, 2007 or the expiration of the
period of exercisability of such warrants. GraphOn must notify holders of the
shares having such rights of any proposed filing of a registration statement at
least 30 business days prior to the filing. Subject to and subordinate to the
registration rights granted to the holders of the private placement shares,
described above, GraphOn also granted Corel and one additional holder of GraphOn
certain "piggy-back" registration rights.
 
    If the merger is consummated, each outstanding share of GraphOn common stock
will be converted into the right to receive approximately .5576 of a share of
Unity common stock, which will be registered pursuant to the registration
statement filed in connection with the merger. CONSEQUENTLY, GRAPHON SHALL HAVE
NO FURTHER OBLIGATION TO REGISTER SHARES OF GRAPHON COMMON STOCK PURSUANT TO THE
AGREEMENTS DESCRIBED ABOVE.
 
                                       62
<PAGE>
SHARES ELIGIBLE FOR FUTURE SALE
 
    All outstanding shares of GraphOn common stock currently are subject to
restrictions on transfer. No outstanding shares of GraphOn common stock have
been registered under the Securities Act and must be held indefinitely unless:
 
    - there is in effect a registration statement under the Securities Act
      covering the proposed disposition, including, without limitation, the
      registration statement contemplated to be filed in connection with the
      merger, and such disposition is made in accordance with such registration
      statement;
 
    - the holder of such shares has notified GraphOn of such disposition and,
      with respect to certain holders of GraphOn common stock, if reasonably
      requested by GraphOn, such holder has furnished GraphOn with an opinion of
      counsel, reasonably satisfactory to GraphOn, or, in the case of certain
      other shareholders, satisfactory assurances that such disposition will not
      require registration under the Securities Act; or
 
    - the shares are sold pursuant to Rule 144 or Rule 144A of the Securities
      Act.
 
    In general, under Rule 144 as currently in effect, if a minimum of one year
has elapsed between the later of the date of acquisition of the securities from
the issuer or an "affiliate" of the issuer, as that term is defined under the
Securities Act, a person (including an affiliate or person whose shares are
aggregated) holding such securities beneficially is entitled to sell, within any
three-month period, a number of such shares that does not exceed the greater of:
 
    - 1% of the then outstanding shares of such class of securities; or
 
    - the average weekly reported trading volume in such securities during the
      four calendar weeks preceding such sale.
 
Such sales are permitted only if
 
    - the issuer has been subject to the reporting requirements of the Exchange
      Act for at least 90 days before the sale and has filed all reports
      required under the Exchange Act during the 12 months preceding such sale;
 
    - such sale is in a brokers' transaction or directly with a market maker;
      and
 
    - a notice of proposed sale is filed with the SEC.
 
If a minimum of two years has elapsed between the later of the date of
acquisition of the securities from the issuer or an affiliate, a person (or
persons whose shares are aggregated) holding such securities beneficially, who
is not deemed an affiliate of the issuer, is entitled to sell such securities
under Rule 144 without regard to the limitations described above. There can be
no assurance that holders of GraphOn common stock ever will be able to rely on
Rule 144 to resell such shares.
 
    As a condition to the merger, each holder of private placement shares must
be restricted by the terms of a "lock-up" agreement whereby such holder will be
prevented from selling, transferring or otherwise disposing of the shares until
the date which is six months after the Effective Date.
 
    In addition, there are 625,000 shares of Unity common stock outstanding but
not currently available for sale by certain Unity stockholders, including shares
held by the current officers and directors of Unity and their affiliates. These
shares may not be sold or otherwise transferred until the effective time (as
hereinafter defined). Such 625,000 shares will be registered under the
Securities Act of 1933 at the effective time so as to permit such shares to be
offered for sale by their respective holders at any time and from time to time
subsequent to the merger. However, 311,500 of these shares are held by Unity
stockholders who, as a condition to the merger, must agree not to sell, pledge,
transfer or otherwise dispose of any of such shares for a period of 6 months
following the effective time. Upon consummation of the merger, approximately
9,124,543 additional shares of Unity common stock will be outstanding. All of
 
                                       63
<PAGE>
such shares will be registered under the Securities Act at the effective time so
as to permit such shares to be offered for sale by their respective holders at
any time and from time to time subsequent to the merger. However, as a condition
to the merger, all of GraphOn's officers and directors and approximately 160
persons and entities who acquired GraphOn common stock in private transactions
from October 28, 1998 to January 27, 1999, which holders, officers and directors
will hold approximately 86.6% of the additional shares of Unity common stock to
be outstanding, must agree not to sell, pledge, transfer or otherwise dispose of
any shares of Unity common stock received in connection with the merger for a
period of 6 months from the effective time.
 
    Upon consummation of the merger, there also will be outstanding options and
warrants to purchase a maximum of approximately 4,598,901 shares of Unity common
stock, including (i) approximately 1,073,901 shares issuable upon exercise or
conversion of GraphOn's options and warrants, (ii) 2,500,000 shares issuable
upon exercise of Unity's Class A redeemable warrants and Unity's Class B
redeemable warrants issued in Unity's IPO, (iii) 400,000 shares issuable upon
exercise of Unity's Class A redeemable warrants and Class B redeemable warrants
issued to Unity's current officers and directors, (iv) 375,000 shares issuable
upon exercise of all of the components of the unit purchase warrants originally
issued to the underwriters and affiliates of the underwriters in connection with
the IPO and (v) 250,000 shares issuable upon exercise of the Class A redeemable
warrants to be issued to Spencer Trask. The shares of Unity common stock
issuable upon exercises of such options and warrants are being registered for
sale under the Securities Act as of the date of this joint proxy
statement/prospectus. See "Description of Unity's Securities."
 
    The sale of any of these shares could have an adverse effect on the future
market price of Unity common stock.
 
INFORMATION RIGHTS
 
    GraphOn contractually is obligated to provide Spencer Trask and other
GraphOn shareholders, until the earlier of October 28, 2003 or the closing of an
initial public offering, annual audited financial statements. Additionally,
Spencer Trask, holders of the private placement shares and Corel are entitled to
certain information rights pursuant to the terms of various agreements until the
closing of an initial public offering. GraphOn has determined that the merger
will constitute an "initial public offering." Thus, if the merger is completed,
GraphOn no longer will be contractually obligated to provide such information to
such shareholders.
 
TRANSFER AGENT
 
    The transfer agent for the GraphOn common stock is Brobeck, Phleger &
Harrison LLP, 2200 Geng Road, Two Embarcadero Place, Palo Alto, CA 94303.
 
                               BUSINESS OF UNITY
 
    Unity was formed in May 1996 to serve as a vehicle to effect a merger,
exchange of capital stock, asset acquisition or other similar business
combination with an operating business.
 
    In November 1996, Unity successfully consummated an IPO from which it
derived net proceeds of $6,402,112. Approximately 90% of such net proceeds,
inclusive of interest income thereon, are presently held in trust pending the
consummation of a merger and will be released to Unity upon consummation of the
merger.
 
    Unity's executive offices are located at 245 Fifth Avenue, New York, New
York 10016, its telephone number is (212) 696-4282.
 
                                       64
<PAGE>
                              MANAGEMENT OF UNITY
 
PRIOR TO THE MERGER
 
    EXECUTIVE OFFICERS AND DIRECTORS
 
<TABLE>
<CAPTION>
NAME                                                       AGE      POSITION
- -----------------------------------------------------      ---      -----------------------------------------------------
<S>                                                    <C>          <C>
Lawrence Burstein....................................          55   President, Treasurer and Director
John Cattier.........................................          66   Director
Barry Ridings........................................          46   Director
Norman Leben.........................................          38   Secretary and Director
</TABLE>
 
    LAWRENCE BURSTEIN has been President, Treasurer and a director of Unity
since its inception. For approximately ten years prior thereto, Mr. Burstein was
the President, a director and principal shareholder of Trinity Capital
Corporation, a private investment banking concern ("Trinity"). Trinity ceased
operations upon the formation of Unity VCA. Since March 1996, Mr. Burstein has
been President and a principal shareholder of Unity VCA. Mr. Burstein is a
director of four public companies, being, respectively, T-HQ Inc., which designs
and markets Nintendo and Sega games, Brazil Fast Food Corp., the owner and
operator of the second largest fast food restaurant chain in Brazil, CAS Medical
Systems, Inc., engaged in the manufacture and marketing of blood pressure
monitors and other medical products principally for the neonatal market, and The
MNI Group Inc., engaged in the marketing of specially formulated medical foods.
Mr. Burstein received an L.L.B. from Columbia Law School.
 
    JOHN CATTIER has been a director and shareholder of Unity since its
inception. Since May 1996, Mr. Cattier has been a director and shareholder of
Unity VCA. Mr. Cattier has been an independent consultant since January 1985.
From 1957 to December 1984, Mr. Cattier was associated with White Weld & Co.,
investment bankers, serving as a general partner, and with Credit Suisse White
Weld (which subsequently became Credit Suisse First Boston), investment bankers,
in various capacities. Mr. Cattier is a director of Pacific Assets Trust PLC, a
United Kingdom investment trust, and Vice Chairman of Laredo National
Bancshares, Inc. of Laredo, Texas, a one bank holding company. Mr. Cattier
received a B.A. from Yale University.
 
    BARRY RIDINGS has been a director of Unity since its inception. Since March
1990, Mr. Ridings has been a Managing Director of Alex. Brown & Sons, investment
bankers. From June 1986 to March 1990, Mr. Ridings was a Managing Director of
Drexel Burnham Lambert, investment bankers. Mr. Ridings is a director of
Transcor Waste Services Corp., a waste management company, Noodle Kidoodle,
Inc., an operator of specialty toy stores, New Valley Corp., formerly known as
Western Union, Search Capital Group, an auto finance Company, Telemundo Group, a
Spanish language television network, and Norex Industries Inc., a shipping
company. Mr. Ridings received an M.B.A. from Cornell University.
 
    NORMAN LEBEN has been Secretary and a director of Unity since its inception.
Mr. Leben is, and since 1988 has been, a partner of Dalessio Miliner & Leben
("DML"), certified public accountants. Prior thereto and from 1985, Mr. Leben
was engaged in the acquisition, management, syndication and operation of real
estate and other emerging market businesses. Prior to 1985, Mr. Leben was
employed by Laventhol & Horwath. Mr. Leben received a B.B.A. from George
Washington University.
 
    All directors hold office until the next annual meeting of shareholders and
the election and qualification of their successors. Officers are elected
annually by the Unity board and serve at its discretion. Mr. Burstein devotes
approximately 30% of his time to the affairs of Unity. Unity has not entered
into employment agreements with either of its officers.
 
                                       65
<PAGE>
    EXECUTIVE COMPENSATION
 
    No executive officer has received any cash compensation from Unity since
inception for services rendered. Unity's officers receive no compensation for
serving as officers other than accountable reimbursement for any reasonable
business expenses incurred in connection with activities on behalf of Unity.
 
    See "Description of Unity's Securities--Directors' Warrants" for information
as to warrants to purchase in the aggregate up to 400,000 shares of Unity common
stock.
 
    DIRECTORS' COMPENSATION
 
    The directors of Unity have received no compensation for serving on the
Unity board other than reimbursement of reasonable expenses incurred in
attending meetings.
 
STOCK OPTION PLAN
 
    Unity's 1996 Stock Option Plan ("1996 Plan") was adopted by both the Unity
board and a majority in interest of the Unity stockholders on May 30, 1996. The
1996 Plan provides for the granting of options which are intended to qualify
either as incentive stock options ("Incentive Stock Options") within the meaning
of Section 422 of the Internal Revenue Code of 1986 or as options which are not
intended to meet the requirements of such section ("Nonstatutory Stock
Options"). The total number of shares of Unity common stock reserved for
issuance under the 1996 Plan is 187,500. Options to purchase shares may be
granted under the 1996 Plan to persons who, in the case of Incentive Stock
Options, are employees (including officers) of Unity, or, in the case of
Nonstatutory Stock Options, are employees (including officers) or non-employee
directors of Unity.
 
    The 1996 Plan provides for its administration by the Unity board or a
committee chosen by the Unity board, which has discretionary authority, subject
to certain restrictions, to determine the number of shares issued pursuant to
Incentive Stock Options and Nonstatutory Stock Options and the individuals to
whom, the times at which and the exercise price for which options will be
granted.
 
    The exercise price of all Incentive Stock Options granted under the 1996
Plan must be at least equal to the fair market value of such shares on the date
of the grant or, in the case of Incentive Stock Options granted to the holder of
more than 10% of Unity common stock, at least 110% of the fair market value of
such shares on the date of the grant. The maximum exercise period for which
Incentive Stock Options may be granted is ten years from the date of grant (five
years in the case of an individual owning more than 10% of Unity common stock).
The aggregate fair market value (determined at the date of the option grant) of
shares with respect to which Incentive Stock Options are exercisable for the
first time by the holder of the option during any calendar year shall not exceed
$100,000.
 
    No options may be granted under the 1996 Plan prior to the consummation of a
Business Combination.
 
    CERTAIN TRANSACTIONS
 
    In June 1996, Unity issued an aggregate of 625,000 shares of Unity common
stock at a price of $.0001 per share, as follows: 25,000 shares to Unity VCA,
150,000 shares to Mr. Burstein, 15,000 shares to Mr. Leben, an aggregate of
76,500 shares to Heptagon Investments Ltd. ("Heptagon") and its affiliate,
39,000 shares to Cricket Services Ltd. ("Cricket"), 6,000 shares to Barry
Ridings, and 313,500 shares to 24 other persons. Mr. Cattier is Chairman of
Heptagon's board of directors and exercises voting and dispositive control over
approximately 7.6% of Heptagon's shares of capital stock. Mr. Cattier disclaims
any voting or dispositive power over shares of Unity common stock held by
Heptagon. Mr. Cattier exercises voting and dispositive control over the shares
of Unity common stock held by Cricket. Both Heptagon and Cricket are private
investment companies.
 
                                       66
<PAGE>
    In June 1996, Unity issued 58,334, 58,333, 58,333 and 25,000 Class A and
Class B warrants to each of, respectively, Messrs. Burstein, Leben, Cattier and
Ridings (collectively, the "directors' warrants"), in consideration for future
services to be rendered by such persons on behalf of Unity. The directors'
warrants are identical to Unity's Class A and Class B redeemable warrants
offered and sold in the IPO but are not redeemable by Unity and may not be
transferred until the completion of a merger with an operating business.
 
    Unity has been obligated to pay Unity VCA, since June 1, 1996, a monthly fee
of $7,500 for general and administrative services pursuant to an agreement which
may be canceled by either party upon 30 days' prior written notice. Such fee
includes the use of approximately 500 square feet of office space in premises
occupied by Unity VCA. DML, an accounting firm which is an affiliate of Mr.
Leben, affords Unity VCA the use of such space at a monthly rental of $2,000.
Messrs. Burstein, Cattier and Leben are each directors and stockholders of Unity
VCA. As of January 31, 1999, $76,282 of such fees were due and owing to Unity
VCA.
 
    Unity VCA had made non-interest demand loans aggregating approximately
$50,000 to Unity as of the IPO date to cover expenses incurred by Unity in
connection with the IPO. Unity repaid these loans out of the proceeds of the
IPO.
 
    DML has performed bookkeeping, tax and accounting services for certain of
the "blank check" companies of which Messrs. Burstein, Cattier and Ridings have
been directors and shareholders from their dates of inception through the
consummation of their respective Business Combinations and performs similar
services for Unity at an aggregate cost of $15,570 and $14,275 for the years
ended July 31, 1998 and 1997, respectively.
 
AFTER THE MERGER
 
    Upon completion of the merger, the executive officers of GraphOn and certain
other persons will become the executive officers and           of Unity. See
"Management of GraphOn-Board of Directors."
 
                                       67
<PAGE>
                        PRINCIPAL STOCKHOLDERS OF UNITY
 
    The following table sets forth certain information known to Unity as of May
  , 1999 and as of such date, giving effect to the merger, based on information
obtained from the persons named below, with respect to the beneficial ownership
of shares of Unity common stock held by
 
    - each person known by Unity to be the owner 5% or more of the outstanding
      shares of Unity common stock;
 
    - each director of Unity; and
 
    - all executive officers and directors of Unity as a group:
 
<TABLE>
<CAPTION>
                                                             BENEFICIAL OWNERSHIP OF        BENEFICIAL OWNERSHIP OF
                                                                UNITY COMMON STOCK             UNITY COMMON STOCK
                                                            PRIOR TO THE MERGER (1)(2)        AFTER THE MERGER(3)
                                                           ----------------------------  ------------------------------
<S>                                                        <C>                <C>        <C>                <C>
                                                           NUMBER OF SHARES    PERCENT   NUMBER OF SHARES     PERCENT
                                                           -----------------  ---------  -----------------  -----------
 
Lawrence Burstein........................................         175,000(4)      9.3%          291,668(6)        2.6%
  245 Fifth Avenue
  New York, NY 10016
 
John Cattier.............................................         140,500(4)(5)     7.5%        257,168(7)        2.3%
  Achlain Invermoriston
  Inverneshire,
  Scotland IV3 6YN
  United Kingdom
 
Barry Ridings............................................           6,000           *            56,000(8)          *
  Lilac Lane
  Princeton, NJ 08540
 
Norman Leben.............................................          40,000(4)      2.1%          156,600(9)        1.4%
  245 Fifth Avenue
  New York, NY 10016
 
James G. Dinan et al.....................................         322,375(10)    17.2%          322,375           2.9%
  350 Park Avenue
  New York, NY 10022
 
All executive officers and directors as a group (4                311,500(4)(5)    16.6%        711,500(11)       6.2%
  persons)...............................................
</TABLE>
 
- ------------------------
 
 *  Denotes less than 1% of outstanding Unity common stock.
 
(1) As used herein, beneficial ownership means the sole or shared power to vote,
    or direct the voting of, a security, or the sole or shared power to invest
    or dispose, or direct the investment or disposition, of a security. Except
    as otherwise indicated, all persons named herein have (i) sole voting power
    and investment power with respect to their respective shares of Unity common
    stock, except to the extent that authority is shared by spouses under
    applicable law, and (ii) record and beneficial ownership with respect to
    their respective shares of Unity common stock. With respect to each
    shareholder, includes any shares issuable upon exercise of all options or
    warrants held by such shareholder that are currently exercisable or will
    become exercisable within 60 days of May   , 1999.
 
(2) Does not include shares issuable upon exercise of the directors' warrants
    which are beneficially owned by each of the persons named in the above table
    but which are not exercisable until the consummation of a merger with an
    operating business.
 
                                       68
<PAGE>
(3) Assumes no cash conversions of Unity common stock by Unity stockholders or
    exercise by Unity stockholders and GraphOn shareholders of their respective
    appraisal rights.
 
(4) Includes 25,000 shares of Unity common stock owned by Unity VCA, over which
    shares Messrs. Burstein, Leben and Cattier share voting and investment
    power.
 
(5) Includes (i) 75,000 shares held by Heptagon, (ii) 1,500 shares held by an
    affiliate of Heptagon and (iii) 39,000 shares held by Cricket. Mr. Cattier
    is Chairman of Heptagon's board of directors and exercises voting and
    dispositive control over approximately 7.6% of Heptagon's shares of capital
    stock. Mr. Cattier disclaims any voting or dispositive power of the shares
    of Unity common stock held by Heptagon.
 
(6) Includes 116,668 shares issuable upon exercise of directors' warrants.
 
(7) Includes 116,666 shares issuable upon exercise of directors' warrants.
 
(8) Includes 50,000 shares issuable upon exercise of directors' warrants.
 
(9) Includes 116,666 shares issuable upon exercise of directors' warrants.
 
(10) Represents shares held by a "group," within the meaning of Section 13(d)(3)
    of the Exchange Act, comprised of James G. Dinan, York Investment Limited,
    York Capital Management, L.P. and York Institutional Partners, L.P., as
    reflected in Schedule 13G, filed with the SEC on January 21, 1999.
 
(11) Includes 400,000 shares issuable upon exercise of directors' warrants.
 
    The shares of Unity common stock owned by the persons named above have been
placed in escrow with American Stock Transfer & Trust Company, as escrow agent,
until the earlier to occur of (i) the consummation of the merger or (ii) the
mandatory liquidation of Unity pursuant to its certificate of incorporation due
to the failure of Unity to effect a merger with an operating business. During
the escrow period, such persons will not be able to sell or otherwise transfer
their respective shares of Unity common stock, but will retain all other rights
as stockholders of Unity, including, without limitation, the right to vote such
shares.
 
    Messrs. Burstein, Cattier, Leben and Unity VCA may be deemed to be "parents"
and "promoters" of Unity, as such terms are defined under the Federal securities
laws.
 
                                       69
<PAGE>
                       DESCRIPTION OF UNITY'S SECURITIES
 
GENERAL
 
    Unity is authorized to issue 20,000,000 shares of Unity common stock, par
value $.0001 per share, and 5,000 shares of "blank check" preferred stock, par
value $.01 per share. As of May   , 1999, 1,875,000 shares of Unity common stock
are outstanding, held of record by 37 persons. No shares of Unity preferred
stock currently are outstanding.
 
COMMON STOCK
 
    The holders of Unity common stock are entitled to one vote for each share
held of record on all matters to be voted on by shareholders. There is no
cumulative voting with respect to the election of directors, with the result
that the holders of more than 50% of the shares voted for the election of
directors can elect all of the directors. The holders of Unity common stock are
entitled to receive dividends when, as and if declared by the Unity board out of
funds legally available therefor. In the event of liquidation, dissolution or
winding up of Unity, the holders of Unity common stock, except for the
non-public Unity stockholders who have agreed to waive their rights to share in
any distribution upon their respective shares of Unity common stock relating to
a liquidation of Unity due to either the failure of the Unity stockholders to
approve the Amendments or the failure of Unity to effect a merger with GraphOn
by June 30, 1999, as applicable), are entitled to share ratably in all assets
remaining available for distribution to them after payment of liabilities and
after provision has been made for each class of stock, if any, having preference
over the Unity common stock. Holders of shares of Unity common stock, as such,
have no redemption, preemptive or other subscription rights. Except as set forth
under "The Merger-Conversion Rights," there are no conversion provisions
applicable to the Unity common stock. All of the outstanding shares of Unity
common stock are, and the shares of Unity common stock issuable in the merger,
when delivered in accordance with the terms of the merger agreement, will be,
fully paid and nonassessable.
 
PREFERRED STOCK
 
    Unity's certificate of incorporation authorizes the issuance of 5,000 shares
of Unity preferred stock with such designation, rights and preferences as may be
determined from time to time by the Unity board. Accordingly, the Unity board is
empowered, without shareholder approval, to issue Unity preferred stock with
dividend, liquidation, conversion, voting or other rights which could adversely
affect the voting power or other rights of the holders of Unity common stock.
The Unity preferred stock could be utilized, under certain circumstances, as a
method of discouraging, delaying or preventing a change in control of Unity
subsequent to the effective time. Although Unity does not currently intend to
issue any shares of Unity preferred stock, there can be no assurance that Unity
will not do so subsequent to the completion of the merger.
 
DIVIDENDS
 
    Unity does not presently intend to pay any cash dividends as all available
cash will be utilized to further the growth of Unity's business subsequent to
the effective time and for the proximate future thereafter. The payment of any
cash dividends will be in the discretion of the Unity board and will be
dependent upon Unity's results of operations, financial condition, contractual
restrictions and other factors deemed relevant by the Unity board.
 
TRANSFER AGENT
 
    The transfer agent for the Unity common stock is American Stock Transfer &
Trust Company, 40 Wall Street, New York, New York 10005.
 
                                       70
<PAGE>
IPO WARRANTS
 
    As of May   , 1999, there were 1,250,000 Class A redeemable warrants and
1,250,000 Class B redeemable warrants (collectively, the "Unity IPO Warrants")
outstanding, held of record by seven and four persons, respectively.
 
    Each Class A redeemable warrant entitles the registered holder to purchase
one share of Unity common stock at a price of $5.50 per share, subject to
adjustment in certain circumstances, for a period of five years commencing on
the later of a merger with an operating business or November 12, 1997. Each
Class B redeemable warrant entitles the registered holder to purchase one share
of Unity common stock at a price of $7.50 per share subject to adjustment in
certain circumstances, for a period of five years commencing on the later of a
merger with an operating business or November 12, 1997. Unity may call the Class
A redeemable warrants and the Class B redeemable warrants for redemption, each
as a class, in whole and not in part, at the option of Unity, at a price of $.05
per IPO warrant at any time upon not less than 30 days' prior written notice,
provided that the reported high bid price of Unity common stock equals or
exceeds $8.50 per share with respect to the Class A warrants, and $10.50 per
share with respect to the Class B warrants, for the 20 consecutive trading days
immediately prior to the notice of redemption to warrantholders. The
warrantholders shall have exercise rights until the close of business on the
date fixed for redemption.
 
    The Unity IPO warrants are issued in registered form under a warrant
agreement between Unity and American Stock Transfer & Trust Company, as warrant
agent.
 
    The exercise price and number of shares of Unity common stock issuable on
exercise of the Unity IPO warrants are subject to adjustment in certain
circumstances, including in the event of a stock dividend, recapitalization,
reorganization, merger or consolidation of Unity. However, the Unity IPO
warrants are not subject to adjustment for issuances of Unity common stock at a
price below their respective exercise prices.
 
    Unity has the right, in its sole discretion, to decrease the exercise price
of the Unity IPO warrants for a period of not less than 30 days on not less than
30 days' prior written notice to the warrantholders. In addition, Unity has the
right, in its sole discretion, to extend the expiration date of the Unity IPO
warrants on five business days' prior written notice to the warrantholders.
 
    The Unity IPO warrants may be exercised upon surrender of the warrant
certificate on or prior to the expiration date at the offices of the warrant
agent, with the exercise form on the reverse side of the warrant certificate
completed and executed as indicated, accompanied by full payment of the exercise
price (by certified check, payable to Unity) to the warrant agent for the number
of Unity IPO warrants being exercised. The warrantholders do not have the rights
or privileges of holders of Unity common stock.
 
    No Unity IPO warrants will be exercisable unless at the time of exercise
Unity has filed with the SEC a current prospectus covering the shares of Unity
common stock issuable upon exercise of Unity IPO warrants and such shares have
been registered or qualified or deemed to be exempt under the securities laws of
the state of residence of the holder of such Unity IPO warrants. Unity will use
its best efforts to have all shares so registered or qualified on or before the
exercise date and to maintain a current prospectus relating thereto until the
expiration of the Unity IPO warrants, subject to the terms of the warrant
agreement. While it is Unity's intention to do so, there is no assurance that it
will be able to do so.
 
    No fractional shares will be issued upon exercise of the Unity IPO warrants.
However, if a warrantholder exercises all Unity IPO warrants then owned of
record by him, Unity will pay to such warrantholder, in lieu of the issuance of
any fractional share which otherwise is issuable to such warrantholder, an
amount in cash based on the market value of Unity common stock on the last
trading day prior to the exercise date.
 
                                       71
<PAGE>
    If the merger is consummated, Unity shall issue to Spencer Trask 250,000
Class A redeemable common stock purchase warrants exercisable for an aggregate
of up to 250,000 shares of Unity common stock at an exercise price of $5.50 per
share. The terms of the warrant are substantially the same as the terms of the
Class A redeemable warrants described above.
 
UNDERWRITERS' IPO SECURITIES
 
    In connection with the Unity IPO, Unity sold to GKN Securities Corp. and
Gaines, Berland Inc., the underwriters of the Unity IPO, for nominal
consideration, the right to purchase up to an aggregate of 125,000 units (the
"Underwriters' IPO Securities"). Each unit issuable upon exercise of the
Underwriters' IPO Securities consists of one share of Unity common stock, one
Class A warrant and one Class B warrant (the Class A warrants and the Class B
warrants are collectively referred to herein as the "Warrants"). The Warrants
are identical to the Unity IPO warrants described above except that the Warrants
cannot be redeemed. The Underwriters' IPO Securities are exercisable initially
at $6.60 per unit (the "Exercise Price") for a period of five years commencing
on November 12, 1996. The Underwriters' IPO Securities contain anti-dilution
provisions providing for adjustment of the exercise price upon the occurrence of
certain events including the issuance of shares of Unity common stock or other
securities convertible into or exercisable for shares of Unity common stock at a
price per share less than the exercise price, or in the event of any
recapitalization, reclassification, stock dividend, stock split, stock
combination or similar transaction.
 
    Unity also agreed at the time of the issuance of the Underwriters' IPO
Securities to use its best efforts to maintain an effective registration
statement with respect to the Underwriters' IPO Securities and the underlying
units. In addition, the Underwriters' IPO Securities grant to the holders
thereof certain "piggy back" and "demand" rights for periods of seven and five
years, respectively, from November 12, 1996 with respect to the registration
under the Securities Act of the securities directly and indirectly issuable upon
exercise of the Underwriters' IPO Securities.
 
DIRECTORS' WARRANTS
 
    In June 1996, Unity issued to each of Messrs. Burstein, Leben, Cattier and
Ridings 58,334, 58,333, 58,333 and 25,000 Class A, and the same number of Class
B, warrants, respectively, in consideration for future services to be rendered
by such persons on behalf of Unity. Such warrants are identical to the Class A
and Class B redeemable warrants but are not redeemable by Unity and may not be
exercised until the consummation of a Business Combination.
 
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                    COMPARISON OF RIGHTS OF HOLDERS OF UNITY
                     COMMON STOCK AND GRAPHON COMMON STOCK
 
    If the merger agreement is approved and the merger becomes effective,
GraphOn shareholders will become Unity stockholders and their rights as
shareholders will be determined by the DGCL and Unity's Restated certificate of
incorporation ("certificate of incorporation") and bylaws ("the Unity Bylaws").
Differences between the DGCL and the CCC as well as those between the
certificate of incorporation and Bylaws of Unity and the Second Amended and
Restated Articles of Incorporation ("Articles of Incorporation") and the amended
and restated bylaws ("the GraphOn Bylaws") of GraphOn, are summarized below.
This summary is not intended to be complete and is qualified in its entirety by
reference to the DGCL, the CCC, and the certificate of incorporation and Unity
Bylaws and the Articles of Incorporation and GraphOn Bylaws.
 
    SIZE OF THE BOARD OF DIRECTORS.  Under California law, the number of
directors of a corporation may be fixed in the articles of incorporation or
bylaws of a corporation, or a range may be established for the number of
directors, with the board of directors given authority to fix the exact number
of directors within such range. The GraphOn Bylaws establish a range of five to
seven for the number of directors of GraphOn with the exact number currently set
at six. The provision setting forth the number of directors in the GraphOn
Bylaws may not be amended to reduce the minimum number of directors below five
if the votes cast against the adoption of such amendment at a meeting, or the
shares not consenting in the case of action by written consent, are equal to
more than 16 2/3% of the outstanding shares entitled to vote.
 
    Under Delaware law, the number of directors of a corporation, or the range
of authorized directors, may be fixed or changed by the board of directors
acting alone, by amendment to the corporation's bylaws, unless the directors are
not authorized to amend the bylaws or the number of directors is fixed in the
certificate of incorporation, in which cases shareholder approval is required.
The Unity Bylaws establish a range of one to seven for the number of directors
of Unity, with the exact number currently set at four, and Unity's certificate
of incorporation authorizes the Unity board to make, alter, amend or repeal the
Unity Bylaws. Accordingly, a majority of Unity's board of directors will have
the power to change the authorized number of directors. The GraphOn board does
not have this power under California law.
 
    CUMULATIVE VOTING.  Under California law, if any shareholder has given
notice of his or her intention to cumulate votes for the election of directors,
any other shareholder of the corporation also is entitled to cumulate his or her
votes at such election. Cumulative voting is not available under Delaware law
unless specifically provided for in a corporation's certificate of incorporation
The Unity certificate of incorporation does not provide for cumulative voting
and, therefore, the shareholders of GraphOn will no longer have cumulative
voting rights. The elimination of cumulative voting would limit the ability of
minority shareholders to obtain representation on a corporation's board of
directors.
 
    CLASSIFIED BOARD OF DIRECTORS. A classified board is one on which a certain
number, but not all, of the directors are elected on a rotating basis each year.
Under California law, directors generally are elected annually. Delaware law
permits, but does not require, a classified board of directors, with staggered
terms under which one-half or one-third of the directors are elected for terms
of two or three years, respectively. This method of electing directors makes a
change in the composition of the board of directors, and a potential change in
control of a corporation, a lengthier and more difficult process. Unity's
post-merger certificate of incorporation provides for a classified board of
directors.
 
    WRITTEN CONSENT OF SHAREHOLDERS.  Both the CCC and the DGCL provide that the
shareholders of a corporation may take action by written consent without a
meeting, unless the corporation's charter documents provide otherwise. Both the
Articles of Incorporation of GraphOn and the certificate of incorporation of
Unity do not contain any provisions prohibiting actions by written consent and,
accordingly, the shareholders of both Unity and GraphOn may take action by
written consent without a meeting.
 
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    POWER TO CALL SPECIAL SHAREHOLDERS' MEETINGS.  Under California law, a
special meeting of shareholders may be called by the board of directors, the
chairman of the board, the president, the holders of shares entitled to cast not
less than 10% of the votes at such meeting and such additional persons as are
authorized by the articles of incorporation or the bylaws. Under Delaware law, a
special meeting of shareholders may be called by the board of directors or by
any other person authorized to do so in the certificate of incorporation or the
bylaws.
 
    SHAREHOLDER APPROVAL OF CERTAIN BUSINESS COMBINATIONS.  In the last several
years, a number of states (but not California) have adopted special laws
designed to subject to shareholder approval certain kinds of "unfriendly"
corporate takeovers, or other transactions involving a corporation and one or
more of its significant shareholders. Under Section 203 of the DGCL ("Section
203"), certain "business combinations" with "interested shareholders" of
Delaware corporations are subject to a three-year moratorium unless specified
conditions are met. With certain exceptions, an interested shareholder is a
person or group who or which owns 15% or more of the corporation's outstanding
voting stock (including any rights to acquire stock pursuant to an option,
warrant, agreement, arrangement or understanding, or upon the exercise of
conversion or exchange rights, and stock with respect to which the person has
voting rights only), or is an affiliate or associate of the corporation and was
the owner of 15% or more of such voting stock at any time within the previous
three years.
 
    For purposes of Section 203, the term "business combination" is defined
broadly to include mergers with or caused by the interested shareholder, sales
or other dispositions to the interested shareholder (except proportionately with
the corporation's other shareholders) of assets of the corporation or a
subsidiary equal to 10% or more of the aggregate market value of the
corporation's consolidated assets or its outstanding stock, the issuance or
transfer by the corporation or a subsidiary of stock of the corporation or such
subsidiary to the interested shareholder (except for transfers in a conversion
or exchange or a pro rata distribution or certain other transactions, none of
which increase the interested shareholder's proportionate ownership of any class
or series of the corporation's or such subsidiary's stock) or receipt by the
interested shareholder (except proportionately as a shareholder), directly or
indirectly, of any loans, advances, guarantees, pledges or other financial
benefits provided by or through the corporation or a subsidiary.
 
    The three-year moratorium imposed on business combinations by Section 203
does not apply if:
 
    - prior to the date on which such shareholder becomes an interested
      shareholder the board of directors approves either the business
      combination or the transaction which resulted in the person becoming an
      interested shareholder;
 
    - the interested shareholder owns 85% of the corporation's voting stock upon
      consummation of the transaction which made him or her an interested
      shareholder (excluding from the 85% calculation shares owned by directors
      who are also officers of the target corporation and shares held by
      employee stock plans which do not permit employees to decide
      confidentially whether to accept a tender or exchange offer); or
 
    - on or after the date such person becomes an interested shareholder, the
      board approves the business combination and it also is approved at a
      shareholder meeting by 66 2/3% of the voting stock not owned by the
      interested shareholder.
 
    Section 203 only applies to Delaware corporations which have a class of
voting stock that is listed on a national securities exchange, such as the
Nasdaq National Market or are held of record by more than 2,000 shareholders.
However, a Delaware corporation may elect not to be governed by Section 203 by a
provision in its original certificate of incorporation or an amendment thereto
or to the bylaws, which amendment must be approved by majority shareholder vote
and may not be further amended by the board of directors. Unity is not currently
subject to Section 203.
 
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    REMOVAL OF DIRECTORS.  Under California law, any director or the entire
board of directors may be removed, with or without cause, with the approval of a
majority of the outstanding shares entitled to vote; however, no individual
director may be removed (unless the entire board is removed) if the number of
votes cast against such removal would be sufficient to elect the director under
cumulative voting. Under Delaware law, a director of a corporation that does not
have a classified board of directors or cumulative voting may be removed with or
without cause with the approval of a majority of the outstanding shares entitled
to vote. In the case of a Delaware corporation having cumulative voting, if less
than the entire board is to be removed, a director may not be removed without
cause unless the number of shares voted against such removal would not be
sufficient to elect the director under cumulative voting. A director of a
corporation with a classified board of directors may be removed only for cause,
unless the certificate of incorporation otherwise provides.
 
    FILLING VACANCIES ON THE BOARD OF DIRECTORS.  Under California law, any
vacancy on the board of directors other than one created by removal of a
director may be filled by the board. If the number of directors is less than a
quorum, a vacancy may be filled by the unanimous written consent of the
directors then in office by the affirmative vote of a majority of the directors
at a meeting held pursuant to notice or waivers of notice or by a sole remaining
director. A vacancy created by removal of a director may be filled by the board
only if so authorized by a corporation's articles of incorporation or by a bylaw
approved by the corporation's shareholders. Under Delaware law, vacancies and
newly created directorships may be filled by a majority of the directors then in
office (even though less than a quorum) unless otherwise provided in the
certificate of incorporation or bylaws (and unless the certificate of
incorporation directs that a particular class is to elect such director, in
which case any other directors elected by such class, or a sole remaining
director, shall fill such vacancy).
 
    LOANS TO OFFICERS AND EMPLOYEES.  Under California law, any loan or guaranty
to or for the benefit of a director or officer of the corporation or its parent
requires approval of the shareholders unless such loan or guaranty is provided
under a plan approved by shareholders owning a majority of the outstanding
shares of the corporation. In addition, under California law, shareholders of
any corporation with 100 or more shareholders of record may approve a bylaw
authorizing the board of directors alone to approve loans or guaranties to or on
behalf of officers (whether or not such officers are directors) if the board
determines that any such loan or guaranty may reasonably be expected to benefit
the corporation. Under Delaware law, a corporation may make loans to, guarantee
the obligations of or otherwise assist its officers or other employees and those
of its subsidiaries (including directors who are also officers or employees)
when such action, in the judgment of the directors, may reasonably be expected
to benefit the corporation.
 
    INDEMNIFICATION AND LIMITATION OF LIABILITY.  California and Delaware have
similar laws respecting indemnification by a corporation of its officers,
directors, employees and other agents. The laws of both states also permit
corporations to adopt a provision in their articles of incorporation eliminating
the liability of a director to the corporation or its shareholders for monetary
damages for breach of the director's fiduciary duty of care. There are
nonetheless certain differences between the laws of the two states respecting
indemnification and limitation of liability.
 
    The Articles of Incorporation of GraphOn eliminate the liability of
directors to GraphOn to the fullest extent permissible under California law.
California law does not permit the elimination of monetary liability where such
liability is based on:
 
    - intentional misconduct or knowing and culpable violation of law;
 
    - acts or omissions that a director believes to be contrary to the best
      interest of the corporation or its shareholders, or that involve the
      absence of good faith on the part of the director;
 
    - receipt of an improper personal benefit;
 
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    - acts or omissions that show reckless disregard for the director's duty to
      the corporation or its shareholders where the director in the ordinary
      course of performing a director's duties should be aware of risks of
      serious injury to the corporation or its shareholders;
 
    - acts or omissions that constitute an unexcused pattern of inattention that
      amounts to an abdication of the director's duty to the corporation and its
      shareholders;
 
    - interested transactions between the corporation and a director in which a
      director has a material financial interest; and
 
    - liability for improper distributions, loans or guarantees.
 
    The certificate of incorporation of Unity also eliminates the liability of
directors to the fullest extent permissible under Delaware law, as such law
exists currently or as it may be amended in the future. Under Delaware law, such
provision may not eliminate or limit director monetary liability for:
 
    - breaches of the director's duty of loyalty to the corporation or its
      shareholders;
 
    - acts or omissions not in good faith or involving intentional misconduct or
      knowing violations of law;
 
    - the payment of unlawful dividends or unlawful stock repurchases or
      redemptions; or
 
    - transactions in which the director received an improper personal benefit.
 
    Such limitation of liability provision also may not limit a director's
liability for violation of, or otherwise relieve Unity or its directors from the
necessity of complying with, federal or state securities laws, or affect the
availability of non-monetary remedies such as injunctive relief or rescission.
 
    California law permits indemnification of expenses incurred in derivative or
third-party actions, except that with respect to derivative actions:
 
    - no indemnification may be made without court approval when a person is
      adjudged liable to the corporation in the performance of that person's
      duty to the corporation and its shareholders, unless a court determines
      such person is entitled to indemnity for expenses, and then such
      indemnification may be made only to the extent that such court shall
      determine; and
 
    - no indemnification may be made without court approval in respect of
      amounts paid or expenses incurred in settling or otherwise disposing of a
      threatened or pending action or amounts incurred in defending a pending
      action which is settled or otherwise disposed of without court approval.
 
    Delaware allows indemnification of such expenses without court approval.
 
    Delaware law generally permits indemnification of expenses incurred in the
defense or settlement of a derivative or third-party action, provided there is a
determination by a disinterested quorum of the directors, by independent legal
counsel or by a majority vote of a quorum of the shareholders that the person
seeking indemnification acted in good faith and in a manner reasonably believed
to be in or (in contrast to California law) not opposed to the best interests of
the corporation. Without court approval, however, no indemnification may be made
in respect of any derivative action in which such person is adjudged liable for
negligence or misconduct in the performance of his or her duty to the
corporation. Delaware law requires indemnification of expenses when the
individual being indemnified has successfully defended the action on the merits
or otherwise.
 
    Indemnification is permitted by California law only for acts taken in good
faith and believed to be in the best interests of the corporation and its
shareholders, as determined by a majority vote of a disinterested quorum of the
directors, independent legal counsel (if a quorum of independent directors is
not obtainable), a majority vote of a quorum of the shareholders (excluding
shares owned by the indemnified party), or the court handling the action.
California law requires indemnification when the
 
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individual successfully has defended the action on the merits (as opposed to
Delaware law which requires indemnification relating to a successful defense on
the merits or otherwise).
 
    California corporations may include in their articles of incorporation a
provision which extends the scope of indemnification through agreements, bylaws
or other corporate action beyond that specifically authorized by statute.
 
    Delaware law states that the indemnification provided by statute shall not
be deemed exclusive of any other rights under any bylaw, agreement, vote of
shareholders or disinterested directors or otherwise. Under Delaware law,
therefore, any indemnification agreements entered into by GraphOn with its
officers and directors may be assumed by Unity upon completion of the merger.
 
    Currently, there are no actions pending against any officers of GraphOn in
their capacities as such.
 
    INSPECTIONS OF SHAREHOLDERS LIST.  Both California and Delaware law allow
any shareholder to inspect the shareholders list for a purpose reasonably
related to such person's interest as a shareholder. California law provides, in
addition, for an absolute right to inspect and copy the corporation's
shareholder list by persons holding an aggregate of 5% or more of a
corporation's voting shares, or shareholders holding an aggregate of 1% or more
of such shares who have filed a Schedule 14B with the SEC relating to the
election of directors. Delaware law does not provide for any such absolute right
of inspection, and no such right is granted under the certificate of
incorporation or Bylaws of Unity. Lack of access to shareholder records, even
though unrelated to the shareholder's interest as a shareholder, could result in
impairment of the shareholder's ability to coordinate opposition to management
proposals, including proposals with respect to a change in control of Unity.
 
    DIVIDENDS AND REPURCHASES OF SHARES.  California law dispenses with the
concepts of par value of shares as well as statutory definitions of capital,
surplus and the like. The concepts of par value, capital and surplus are
retained under Delaware law.
 
    Under California law, a corporation may not make any distribution (including
dividends, whether in cash or other property, and repurchases of its shares)
unless either the corporation's retained earnings immediately prior to the
proposed distribution equal or exceed the amount of the proposed distribution
or, immediately after giving effect to such distribution, the corporation's
assets (exclusive of goodwill, capitalized research and development expenses and
deferred charges) would be at least equal to 1.25 times its liabilities (not
including deferred taxes, deferred income and other deferred credits), and the
corporation's current assets would be at least equal to its current liabilities
(or 1.25 times its current liabilities if the average pre-tax and pre-interest
expense earnings for the preceding two fiscal years were less than the average
interest expense for such years). Such tests are applied to California
corporations on a consolidated basis.
 
    Delaware law permits a corporation to declare and pay dividends out of
surplus or, if there is no surplus, out of net profits for the fiscal year in
which the dividend is declared and/or for the preceding fiscal year as long as
the amount of capital of the corporation following the declaration and payment
of the dividend is not less than the aggregate amount of the capital of the
corporation represented by the issued and outstanding stock of all classes
having a preference upon the distribution of assets. In addition, Delaware law
generally provides that a corporation may redeem or repurchase its shares only
if such redemption or repurchase would not impair the capital of the
corporation.
 
    SHAREHOLDER VOTING.  Both California and Delaware law generally require that
a majority of the shareholders of both acquiring and target corporations approve
statutory mergers. Delaware law does not require a shareholder vote of the
surviving corporation in a merger (unless the corporation provides otherwise in
its certificate of incorporation) if:
 
    - the merger agreement does not amend the existing certificate of
      incorporation;
 
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    - each share of the surviving corporation outstanding before the merger is
      an identical outstanding or treasury share after the merger; and
 
    - the number of shares to be issued by the surviving corporation in the
      merger does not exceed 20% of the shares outstanding immediately prior to
      the merger.
 
    California law contains a similar exception to its voting requirements for
reorganizations where shareholders or the corporation itself, or both,
immediately prior to the reorganization will own immediately after the
reorganization equity securities constituting more than five-sixths of the
voting power of the surviving or acquiring corporation or its entity.
 
    Both California and Delaware law also require that a sale of all or
substantially all of the assets of the corporation be approved by a majority of
the voting shares of the corporation transferring such assets.
 
    With certain exceptions, California law also requires that mergers,
reorganizations and certain similar transactions be approved by a majority vote
of each class of shares outstanding. In contrast, Delaware law generally does
not require class voting, except in certain transactions involving an amendment
to the certificate of incorporation which adversely affects a specific class of
shares. Should Unity authorize and issue shares of a new class of capital stock,
the holders thereof would vote with the holders of the Unity common stock on
proposals not adversely affecting the Unity common stock. In such event the
holders of Unity common stock, if in the minority, would be unable to control
the outcome of a vote and, if in the majority, would be able to control the
outcome of such a vote.
 
    California law also requires that holders of non-redeemable common stock
receive non-redeemable common stock in a merger of the corporation with the
holders of more than 50% but less than 90% of such common stock or its affiliate
unless all of the holders of such common stock consent to the transaction. This
provision of California law may have the effect of making a "cash-out" merger by
a majority shareholder more difficult to accomplish. Although Delaware law does
not parallel California law in this respect, under some circumstances Section
203 of the DGCL does provide similar protection against coercive two-tiered bids
for a corporation in which the shareholders are not treated equally.
 
    California law also provides that, except in certain circumstances, when a
tender offer or a proposal for a reorganization or for a sale of assets is made
by an interested party (generally a controlling or managing party of the target
corporation), an affirmative opinion in writing as to the fairness of the
consideration to be paid to the shareholders must be delivered to shareholders.
This fairness opinion requirement does not apply to a corporation which does not
have shares held of record by at least 100 persons, or to a transaction which
has been qualified under California state securities laws. Furthermore, if a
tender of shares or vote is sought pursuant to an interested party's proposal
and a later proposal is made by another party at least ten days prior to the
date of acceptance of the interested party proposal, the shareholders must be
informed of the later offer and be afforded a reasonable opportunity to withdraw
any vote, consent or proxy, or to withdraw any tendered shares. Delaware law has
no comparable provision, and the shareholders of GraphOn might, therefore, be
deprived of an opportunity to consider such other proposal.
 
    AMENDMENT OF BYLAWS.  Under California law, bylaws may be amended by
shareholders holding a majority of the outstanding shares, or by the board,
except that if the number or a range of directors are specified in the bylaws,
this provision can be changed only with the approval of the shareholders.
Shareholders can adopt or amend bylaw provisions to limit the ability of the
board to amend the bylaws. Under Delaware law, the bylaws may be amended only by
the shareholders, unless the corporation's certificate of incorporation confers
the power to amend the bylaws on the directors also.
 
    AMENDMENT OF CERTIFICATE OR ARTICLES OF INCORPORATION.  Under both Delaware
and California law, amendments to a corporation's certificate or articles of
incorporation must be approved by a corporation's board of directors and by a
majority of the shareholders. In addition, under both Delaware and California
law, if a corporation has more than one class or series of stock outstanding,
certain amendments that
 
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would affect the rights of such class or series require the vote of a majority
of the shares of such class or series. "Supermajority" requirements
(requirements of a vote of more than a majority of the shares) are permitted
under both California and Delaware law. However, California law provides that,
for a corporation with outstanding shares held of record by 100 or more persons,
such provision:
 
    - cannot require a vote higher than 66 2/3%;
 
    - must be approved by at least as large a proportion of the outstanding
      shares as the supermajority provision requires; and
 
    - automatically expires after two years unless renewed pursuant to a
      shareholder vote.
 
    INTERESTED DIRECTOR TRANSACTIONS.  Under both California and Delaware law,
certain contracts or transactions in which one or more of a corporation's
directors has an interest are not void or voidable because of such interest
provided that certain conditions, such as obtaining the required approval and
fulfilling the requirements of good faith and full disclosure, are met. With
certain exceptions, the conditions are similar under California and Delaware
law. Under California and Delaware law:
 
    - either the shareholders or the board of directors must approve any such
      contract or transaction after full disclosure of the material facts, and
      in the case of board approval, the contract or transaction must also be
      "just and reasonable" (in California) or "fair" (in Delaware) to the
      corporation; or
 
    - the contract or transaction must have been just and reasonable or fair as
      to the corporation at the time it was approved.
 
    In the latter case, California law explicitly places the burden of proof on
the interested director. Under California law, if shareholder approval is
sought, the interested director is not entitled to vote his shares at a
shareholder meeting with respect to any action regarding such contract or
transaction. If board approval is sought, the contract or transaction must be
approved by a majority vote of a quorum of the directors, without counting the
vote of any interested directors (except that interested directors may be
counted for purposes of establishing a quorum). Under Delaware law, if board
approval is sought, the contract or transaction must be approved by a majority
of the disinterested directors (even though less than a majority of a quorum).
 
    SHAREHOLDER DERIVATIVE SUITS.  California law provides that a shareholder
bringing a derivative action on behalf of a corporation have been a shareholder
at the time of the transaction in question, provided that certain tests are met.
Under Delaware law, a shareholder only may bring a derivative action on behalf
of the corporation if the shareholder was a shareholder of the corporation at
the time of the transaction in question or his or her stock thereafter devolved
upon him or her by operation of law. California law also provides that the
corporation or the defendant in a derivative suit may make a motion to the court
for an order requiring the plaintiff shareholder to furnish a security bond.
Delaware does not have a similar bonding requirement.
 
    APPRAISAL RIGHTS.  Under both California and Delaware law, a shareholder of
a corporation participating in certain major corporate transactions may, under
varying circumstances, be entitled to appraisal rights pursuant to which such
shareholder may receive cash in the amount of the "fair value" (Delaware) or
"fair market value" (California) of his or her shares, as determined by a court,
in lieu of the consideration he or she would otherwise receive in the
transaction. Under Delaware law, such appraisal rights are not available:
 
    - with respect to the sale, lease or exchange of all or substantially all of
      the assets of a corporation;
 
    - with respect to a merger or consolidation by a corporation the shares of
      which either are listed on a national securities exchange or are held of
      record by more than 2,000 holders if such shareholders receive only shares
      of the surviving corporation or shares of any other corporation which
      either are
 
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<PAGE>
      listed on a national securities exchange or held of record by more than
      2,000 holders, plus cash in lieu of fractional shares; or
 
    - to shareholders of a corporation surviving a merger if no vote of the
      shareholders of the surviving corporation is required to approve the
      merger because the merger agreement does not amend the existing
      certificate of incorporation, each share of the surviving corporation
      outstanding prior to the merger is an identical outstanding or treasury
      share after the merger, and the number of shares to be issued in the
      merger does not exceed 20% of the shares of the surviving corporation
      outstanding immediately prior to the merger and if certain other
      conditions are met.
 
    The limitations on the availability of appraisal rights under California law
are different from those under Delaware law. Shareholders of a California
corporation whose shares are listed on a national securities exchange or on a
list of over-the-counter margin stocks issued by the Board of Governors of the
Federal Reserve System generally do not have such appraisal rights unless the
holders of at least 5% of the class of outstanding shares claim the right or the
corporation or any law restricts the transfer of such shares. California law
also generally affords appraisal rights in sale of asset reorganizations.
Appraisal rights are unavailable, however, if the shareholders of a corporation
or the corporation itself, or both, immediately prior to the reorganization will
own immediately after the reorganization equity securities constituting more
than five-sixths of the voting power of the surviving or acquiring corporation
or its parent entity.
 
    DISSOLUTION.  Under California law, shareholders holding 50% or more of the
total voting power may authorize a corporation's dissolution, with or without
the approval of the corporation's board of directors, and this right may not be
modified by the articles of incorporation. Under Delaware law, unless the board
of directors approves the proposal to dissolve, in which case a simple majority
may approve the dissolution, the dissolution must be approved by shareholders
holding 100% of the total voting power of the corporation. In the event of such
a board-initiated dissolution, Delaware law allows a Delaware corporation to
include in its certificate of incorporation a supermajority voting requirement
in connection with dissolutions.
 
APPLICATION OF THE GENERAL CORPORATION LAW OF CALIFORNIA TO DELAWARE
  CORPORATIONS
 
    Under Section 2115 of the California General Corporation Law, certain
foreign corporations (i.e., corporations not organized under California law) are
placed in a special category if they have characteristics of ownership and
operation which indicate that they have significant contacts with California. So
long as a Delaware or other foreign corporation is in this special category, and
it does not qualify for one of the statutory exemptions, it is subject to a
number of key provisions of the California General Corporation Law applicable to
corporations incorporated in California. Among the more important provisions are
those relating to the election and removal of directors, cumulative voting,
classified boards of directors, standards of liability and indemnification of
directors, distributions, dividends and repurchases of shares, shareholder
meetings, approval of certain corporate transactions, dissenters and appraisal
rights and inspection of corporate records. See "Comparison of Rights of Holders
of Unity common stock and GraphOn common stock," above.
 
COMPARISON OF CERTIFICATE OF INCORPORATION AND BYLAWS OF UNITY AND ARTICLES OF
  INCORPORATION AND BYLAWS OF GRAPHON
 
    AUTHORIZED SHARES OF CAPITAL STOCK
 
    The GraphOn Articles of Incorporation authorize the issuance of 50,000,000
shares of GraphOn common stock, 17,300,755 shares of which were issued and
outstanding as of the GraphOn record date, and 5,000,000 shares of preferred
stock, none of which were issued on the GraphOn record date.
 
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    The Unity certificate of incorporation authorizes the issuance of 20,000,000
shares of Unity common stock, 1,875,000 shares of which were issued and
outstanding as of the Unity record date, and 5,000 shares of preferred stock,
none of which were issued on the Unity record date.
 
    MEETINGS
 
    Pursuant to the GraphOn Bylaws, annual meetings of GraphOn shareholders
shall be held at such time as the GraphOn board may determine. At each annual
meeting, the GraphOn shareholders entitled to vote shall elect a board of
directors, and they may transact such other corporate business as may properly
be brought before the meeting. Special meetings of GraphOn shareholders may be
called for any purpose by the GraphOn board, the Chairman of the Board, the
President or by one or more shareholders holding not less than 10% of the voting
power of GraphOn. Written notice of any meeting of GraphOn shareholders shall be
mailed not less than ten nor more than 60 days before such meeting to each
GraphOn shareholder entitled to vote thereat.
 
    Special meetings of the GraphOn board may be called by the Chairman of the
Board, the President, any Vice President, the Secretary or any two directors on
at least 48-hours' notice to each director if delivered personally or by
telephone, telegraph, facsimile, electronic mail or other electronic means or on
at least 4-days' notice to each director if delivered by first-class mail.
 
    Pursuant to the Unity By Laws, annual meetings of Unity stockholders for the
election of directors and for such other business as may be stated in the notice
of the meeting shall be held at such date as the Unity board shall determine and
as set forth in the notice of the meeting. At each annual meeting, the Unity
stockholders entitled to vote shall elect a board of directors and they may
transact such other corporate business as shall be stated in the notice of the
meeting. Special meetings of Unity stockholders may be called for any purpose by
the President or Secretary by resolution of the directors, or by a notice signed
by the registered holders of no less than 10% of Unity's then issued and
outstanding capital stock. Written notice shall be given to each Unity
stockholder entitled to vote thereat not less than ten nor more than 50 days
before the date of the meeting.
 
    Special meetings of the Unity board may be called by the President or the
Secretary on the written request of any two directors on at least two days'
notice to each director.
 
    DIRECTORS AND OFFICERS
 
    Pursuant to the GraphOn Bylaws, the GraphOn board may fix the number of
directors, but such number may not be less than five nor more than seven
persons. The GraphOn board has currently fixed the number of directors at six.
The officers of GraphOn shall be a Chairman of the Board, a President, one or
more Vice Presidents, a Secretary and a Chief Financial Officer and there may be
such other officers as may be deemed expedient for the proper conduct of the
business of GraphOn.
 
    Pursuant to the Unity Bylaws, the number of directors comprising the Unity
board shall not be less than one nor more than seven persons. The Unity board
has currently fixed the number of directors at four. The officers of Unity shall
be a President, a Treasurer and a Secretary. In addition, the Unity board may
elect a Chairman, one or more Vice Presidents and such Assistant Secretaries and
Assistant Treasurers as they may deem proper.
 
                                 LEGAL MATTERS
 
    Matters relating to the legality of the shares of Unity common stock offered
by this joint proxy statement/prospectus are being passed upon by Cooperman
Levitt Winikoff Lester & Newman, P.C., 800 Third Avenue, New York, New York
10022. Members of such firm own shares of Unity common stock (less than 1%).
 
                                       81
<PAGE>
                                    EXPERTS
 
    The financial statements of Unity as of July 31, 1998 and 1997, and for the
years ended July 31, 1998 and 1997, for the period from inception (May 30, 1996)
to July 31, 1996 and for the period from inception (May 30, 1996) to July 31,
1998 included in this joint proxy statement/prospectus have been audited by
Arthur Andersen LLP, independent public accountants, as indicated in their
reports with respect thereto and are included herein in reliance upon the
authority of said firm as experts in giving said report.
 
    The financial statements and schedules included in this joint proxy
statement/prospectus have been audited by BDO Seidman, LLP, independent
certified public accountants, to the extent and for the periods set forth in
their reports appearing elsewhere herein and in this joint proxy
statement/prospectus, and are included in reliance upon such reports given upon
the authority of said firm as experts in auditing and accounting.
 
    The statements in this joint proxy statement/prospectus under the captions
"Joint Proxy Statement/ Prospectus - Summary - Tax Consequences of the merger"
and "The Merger - Certain Tax Consequences of the Merger" have been reviewed by
Cooperman Levitt Winikoff Lester & Newman, P.C., counsel for Unity, and by
Brobeck, Phleger & Harrison LLP, counsel for GraphOn, as experts on such
matters, and, based upon that review, such statements are included herein.
 
                                       82
<PAGE>
GRAPHON CORPORATION
 
<TABLE>
<S>                                                                                    <C>
INDEPENDENT AUDITORS' REPORT.........................................................        F-2
 
FINANCIAL STATEMENTS
  Balance Sheets.....................................................................        F-3
  Statements of Operations and Comprehensive Income..................................        F-4
  Statements of Stockholders' Equity.................................................        F-5
  Statements of Cash Flows...........................................................        F-6
  Summary of Accounting Policies.....................................................        F-7
  Notes to Financial Statements......................................................       F-11
 
UNITY FIRST ACQUISITION CORP.
  Report of Independent Public Accountants...........................................       F-20
  Balance Sheets as of July 31, 1998 and 1997........................................       F-21
  Statements of Operations for the years ended July 31, 1998 and 1997, for the period
    from inception (May 30, 1996) to July 31, 1996, and for the period from inception
    (May 30, 1996) to July 31, 1998..................................................       F-22
  Statements of Cash Flows for the years ended July 31, 1998 and 1997, for the period
    from inception (May 30, 1996) to July 31, 1996, and for the period from inception
    (May 30, 1996) to July 31, 1998..................................................       F-23
  Statement of Changes in Stockholders' Equity (Deficit) for the period from
    inception (May 30, 1996) through July 31, 1996 and for the years ended July 31,
    1998 and 1997....................................................................       F-24
  Notes to Financial Statements......................................................       F-25
  Balance Sheets as of January 31, 1999 (unaudited) and July 31, 1998................       F-30
  Statements of Operations for the six months ended January 31, 1999 and 1998, for
    the three months ended January 31, 1999 and 1998, and for the period from
    inception (May 30, 1996) to January 31, 1999 (unaudited).........................       F-31
  Statements of Cash Flows for the six months ended January 31, 1999 and 1998 and for
    the period from inception (May 30, 1996) to January 31, 1999 (unaudited).........       F-32
  Statement of Changes in Stockholders Equity for the six months ended January 31,
    1999 (unaudited).................................................................       F-33
  Selected Notes to the Financial Statements (unaudited).............................       F-34
</TABLE>
 
                                      F-1
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
Stockholders and Board of Directors
GraphOn Corporation
Campbell, California
 
    We have audited the accompanying balance sheets of GraphOn Corporation as of
December 31, 1998 and 1997 and the related statements of operations and
comprehensive income, stockholders' equity and cash flows for each of the three
years in the period ended December 31, 1998. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.
 
    We conducted our audits in accordance with generally accepted auditing
standards. These standards require that we plan and perform our audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall presentation of the financial
statements. We believe our audits provide a reasonable basis for our opinion.
 
    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of GraphOn Corporation as of
December 31, 1998 and 1997, and the results of its operations and its cash flows
for each of the three years in the period ended December 31, 1998 in conformity
with generally accepted accounting principles.
 
                                          /s/ BDO SEIDMAN, LLP
                                          BDO Seidman, LLP
 
San Jose, California
February 25, 1999
 
                                      F-2
<PAGE>
                              GRAPHON CORPORATION
 
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                                DECEMBER 31,
                                                                                          ------------------------
                                                                                              1998         1997
                                                                                          ------------  ----------
<S>                                                                                       <C>           <C>
                                                      ASSETS
CURRENT ASSETS:
  Cash and cash equivalents (Note 8)....................................................  $  1,798,400  $  302,800
  Accounts receivable, net of allowance for doubtful accounts of $25,000 and $0 (Notes 8
    and 9)..............................................................................       564,700     308,100
  Available--for--sale securities (Notes 1 and 8).......................................            --       8,600
  Prepaid expenses and other assets.....................................................        32,100      18,300
                                                                                          ------------  ----------
TOTAL CURRENT ASSETS....................................................................     2,395,200     637,800
                                                                                          ------------  ----------
PROPERTY AND EQUIPMENT, NET (Notes 2 and 3).............................................       423,300      50,300
PURCHASED TECHNOLOGY (Note 3)...........................................................     3,645,400          --
CAPITALIZED SOFTWARE, net...............................................................        74,200      43,200
OTHER ASSETS............................................................................         6,400       2,000
                                                                                          ------------  ----------
                                                                                          $  6,544,500  $  733,300
                                                                                          ------------  ----------
                                                                                          ------------  ----------
                                       LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Convertible note payable (Notes 5, 6 and 13)..........................................  $    475,000  $       --
  Accounts payable......................................................................       115,700      28,400
  Accrued expenses (Note 4).............................................................       498,900     142,900
  Deferred revenue......................................................................       112,600     443,800
                                                                                          ------------  ----------
TOTAL CURRENT LIABILITIES...............................................................     1,202,200     615,100
COMMITMENTS, CONTINGENCIES AND SUBSEQUENT EVENTS
  (Notes 5, 6, 10, 11, and 13)
STOCKHOLDERS' EQUITY (Notes 5, 6, and 13)
  Preferred stock, no par value, 5,000,000 shares authorized, no shares issued and
    outstanding.........................................................................            --          --
  Common stock, no par value, 50,000,000 shares authorized, 14,294,003 shares issued and
    outstanding.........................................................................     7,480,800     505,000
  Accumulated other comprehensive income (Notes 1 and 8)................................            --     (12,100)
  Accumulated deficit...................................................................    (2,138,500)   (374,700)
                                                                                          ------------  ----------
STOCKHOLDERS' EQUITY....................................................................     5,342,300     118,200
                                                                                          ------------  ----------
                                                                                          $  6,544,500  $  733,300
                                                                                          ------------  ----------
                                                                                          ------------  ----------
</TABLE>
 
     See accompanying summary of accounting policies and notes to financial
                                  statements.
 
                                      F-3
<PAGE>
                              GRAPHON CORPORATION
 
               STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME
 
<TABLE>
<CAPTION>
                                                                                 YEARS ENDED DECEMBER 31,
                                                                          ---------------------------------------
                                                                              1998           1997         1996
                                                                          -------------  ------------  ----------
<S>                                                                       <C>            <C>           <C>
REVENUES (Notes 8 and 9)................................................  $   2,124,200  $  1,926,100  $  594,800
 
COST OF REVENUES (Note 10)..............................................        344,200       463,300     335,600
                                                                          -------------  ------------  ----------
GROSS PROFIT............................................................      1,780,000     1,462,800     259,200
                                                                          -------------  ------------  ----------
 
OPERATING EXPENSES:
  Selling and marketing.................................................      1,440,300       827,300     192,700
  General and administrative (Notes 6 and 10)...........................      1,208,900       324,700     218,900
  Research and development..............................................        840,200       190,500      41,700
                                                                          -------------  ------------  ----------
TOTAL OPERATING EXPENSES................................................      3,489,400     1,342,500     453,300
                                                                          -------------  ------------  ----------
(LOSS) INCOME FROM OPERATIONS...........................................     (1,709,400)      120,300    (194,100)
 
OTHER INCOME (EXPENSE):
  Interest and other income.............................................          9,800         7,200       6,400
  Interest expense......................................................        (46,900)       (2,100)         --
  Loss on sale of available-for-sale securities (Note 1)................        (16,500)           --          --
                                                                          -------------  ------------  ----------
(LOSS) INCOME BEFORE PROVISION FOR INCOME TAXES.........................     (1,763,000)      125,400    (187,700)
 
PROVISION FOR INCOME TAXES (Note 7).....................................            800           900         800
                                                                          -------------  ------------  ----------
NET (LOSS) INCOME.......................................................     (1,763,800)      124,500    (188,500)
 
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
  Unrealized holding gain (loss) on investment (Note 1).................         12,100        (8,100)      7,500
                                                                          -------------  ------------  ----------
COMPREHENSIVE (LOSS) INCOME.............................................     (1,751,700)      116,400    (181,000)
                                                                          -------------  ------------  ----------
BASIC AND DILUTED (LOSS) EARNINGS PER COMMON SHARE......................  $       (0.26) $       0.02  $    (0.03)
                                                                          -------------  ------------  ----------
                                                                          -------------  ------------  ----------
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING..............................      6,762,667     6,000,000   6,000,000
                                                                          -------------  ------------  ----------
                                                                          -------------  ------------  ----------
</TABLE>
 
     See accompanying summary of accounting policies and notes to financial
                                  statements.
 
                                      F-4
<PAGE>
                              GRAPHON CORPORATION
 
                       STATEMENTS OF STOCKHOLDERS' EQUITY
 
                           (NOTES 1, 2, 3, 6, AND 13)
 
<TABLE>
<CAPTION>
                                                       COMMON STOCK          ACCUMULATED
                                                --------------------------  COMPREHENSIVE    ACCUMULATED
                                                   SHARES        AMOUNT         INCOME         DEFICIT        TOTAL
                                                ------------  ------------  --------------  -------------  ------------
<S>                                             <C>           <C>           <C>             <C>            <C>
BALANCES, December 31, 1995...................     6,000,000  $    505,000    $  (11,500)   $    (310,700) $    182,800
Change in market value of available-for-sale
  securities..................................            --            --         7,500               --         7,500
Net loss......................................            --            --            --         (188,500)     (188,500)
                                                ------------  ------------  --------------  -------------  ------------
BALANCES, December 31, 1996...................     6,000,000       505,000        (4,000)        (499,200)        1,800
Change in market value of available-for-sale
  securities..................................            --            --        (8,100)              --        (8,100)
Net income....................................            --            --            --          124,500       124,500
                                                ------------  ------------  --------------  -------------  ------------
BALANCES, December 31, 1997...................     6,000,000       505,000       (12,100)        (374,700)      118,200
Change in market value of available-for-sale
  securities..................................            --            --        12,100               --        12,100
Compensation expense related to issuance of
  common stock and granted options............            --       191,900            --               --       191,900
Proceeds from employee stock purchase.........       508,500        38,100            --               --        38,100
Proceeds from sale of common stock, net of
  offering costs of $564,700..................     3,699,000     2,659,300            --               --     2,659,300
Issuance of common stock and warrants for
  property and equipment and purchased
  technology..................................     3,886,503     3,886,500            --               --     3,886,500
Exchange of convertible notes payable.........       200,000       200,000            --               --       200,000
Net loss......................................            --            --            --       (1,763,800)   (1,763,800)
                                                ------------  ------------  --------------  -------------  ------------
BALANCES, December 31, 1998...................    14,294,003  $  7,480,800    $       --    $  (2,138,500) $  5,342,300
                                                ------------  ------------  --------------  -------------  ------------
                                                ------------  ------------  --------------  -------------  ------------
</TABLE>
 
     See accompanying summary of accounting policies and notes to financial
                                  statements.
 
                                      F-5
<PAGE>
                              GRAPHON CORPORATION
 
                            STATEMENTS OF CASH FLOWS
 
                                   (NOTE 12)
 
<TABLE>
<CAPTION>
                                                                                      YEARS ENDED DECEMBER 31,
                                                                               ---------------------------------------
                                                                                   1998          1997         1996
                                                                               -------------  -----------  -----------
<S>                                                                            <C>            <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net (loss) income..........................................................  $  (1,763,800) $   124,500  $  (188,500)
  Adjustments to reconcile net (loss) income to net cash (used in) provided
    by operating activities:
    Depreciation and amortization............................................         65,200       31,000        1,100
    Allowance for doubtful accounts..........................................         25,000           --           --
    Loss (gain) on sale of available-for-sale securities.....................         16,500           --       (4,400)
    Compensation expense.....................................................        268,600           --           --
    Changes in operating assets and liabilities:
      Accounts receivable....................................................       (281,600)     232,000     (461,700)
      Related party receivable...............................................             --       34,400       (8,500)
      Prepaid expenses and other assets......................................        (13,900)        (400)      28,900
      Accounts payable.......................................................         87,300       12,900       (1,800)
      Accrued expenses.......................................................        279,300      137,000      (19,500)
      Deferred revenue.......................................................       (331,200)    (358,300)     802,100
                                                                               -------------  -----------  -----------
NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES..........................     (1,648,600)     213,100      147,700
                                                                               -------------  -----------  -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Proceeds from sale of available-for-sale securities........................          4,300           --       40,500
  Purchase of available-for-sale securities..................................             --           --      (20,700)
  Capitalization of software development costs...............................        (53,100)     (24,000)     (35,900)
  Capital expenditures.......................................................       (179,400)     (39,300)     (28,500)
                                                                               -------------  -----------  -----------
NET CASH USED IN INVESTING ACTIVITIES........................................       (228,200)     (63,300)     (44,600)
                                                                               -------------  -----------  -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from convertible notes payable....................................        775,000           --           --
  Repayment of convertible notes payable.....................................       (100,000)          --           --
  Net proceeds from issuance of common stock.................................      2,697,400           --           --
                                                                               -------------  -----------  -----------
NET CASH PROVIDED BY FINANCING ACTIVITIES....................................      3,372,400           --           --
                                                                               -------------  -----------  -----------
NET INCREASE IN CASH AND CASH EQUIVALENTS....................................      1,495,600      149,800      103,100
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR.................................        302,800      153,000       49,900
                                                                               -------------  -----------  -----------
CASH AND CASH EQUIVALENTS, END OF YEAR.......................................  $   1,798,400  $   302,800  $   153,000
                                                                               -------------  -----------  -----------
                                                                               -------------  -----------  -----------
</TABLE>
 
     See accompanying summary of accounting policies and notes to financial
                                  statements.
 
                                      F-6
<PAGE>
                              GRAPHON CORPORATION
 
                         SUMMARY OF ACCOUNTING POLICIES
 
ORGANIZATION AND BUSINESS
 
    GraphOn Corporation (the Company) was incorporated in the state of
California in May 1982 and has headquarters in Campbell, California. The Company
develops, markets, sells and supports server-based software that empowers a
diverse range of desktop computing devices (desktops) to access server-based
Windows and UNIX applications from any location, over fast network or slow
Internet connections.
 
USE OF ESTIMATES
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities at the
date of the financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.
 
CASH AND CASH EQUIVALENTS
 
    The Company considers all highly liquid investments purchased with original
maturities of three months or less to be cash equivalents.
 
MARKETABLE SECURITIES
 
    The Company accounts for investments in marketable securities under the
provisions of Statements of Financial Accounting Standards (SFAS) No. 115,
ACCOUNTING FOR CERTAIN INVESTMENTS IN DEBT AND EQUITY SECURITIES. Under SFAS No.
115, securities are classified and accounted for as follows:
 
- - Debt securities that the enterprise has the positive intent and ability to
  hold to maturity are classified as held-to-maturity securities and reported at
  amortized cost.
 
- - Debt and equity securities that are bought and held principally for the
  purpose of selling them in the near term are classified as trading securities
  and reported at fair value, with unrealized gains and losses included in
  earnings.
 
- - Debt and equity securities not classified as either held-to-maturity
  securities or trading securities are classified as available-for-sale
  securities and reported at fair value, with unrealized gains and losses
  excluded from earnings and reported in a separate component of shareholders'
  equity.
 
PROPERTY AND EQUIPMENT
 
    Property and equipment are stated at cost. Depreciation is calculated using
the straight-line method over the estimated useful lives of the respective
assets, generally three to seven years. Amortization of leasehold improvements
is calculated using the straight-line method over the lesser of the lease term
or useful lives of the respective asset, generally seven years.
 
PURCHASED TECHNOLOGY
 
    Purchased technology is to be amortized on a straight-line basis over the
life of the related technology or five years, whichever is less.
 
                                      F-7
<PAGE>
                              GRAPHON CORPORATION
 
                   SUMMARY OF ACCOUNTING POLICIES (CONTINUED)
 
CAPITALIZED SOFTWARE COSTS
 
    Costs incurred internally in creating computer software products to be sold,
leased, or otherwise marketed are charged to expense when incurred as research
and development until technological feasibility has been established for the
product. Thereafter, such costs are capitalized until the product is available
for general release to customers and amortized based on either estimated current
and future revenue for each product or straight-line amortization over the
shorter of three years or the remaining estimated life of the product, whichever
produces the higher expense for the period. As of December 31, 1998 and 1997,
capitalized costs aggregated $113,000 and $59,800, with accumulated amortization
of $38,800 and $16,600.
 
REVENUE RECOGNITION AND DEFERRED REVENUE
 
    The Company recognizes revenues from product sales when goods are shipped to
the customer. Customer product maintenance fees committed as part of new product
licenses and maintenance fees resulting from renewed maintenance contracts are
deferred and recognized ratably over the contract period, generally one year.
Consulting service revenue is recognized when services are performed for time
and material contracts, and on a percentage of completion basis for fixed price
contracts. Deferred revenue, resulting from maintenance and license agreements,
aggregated $112,600 and $443,800 as of December 31, 1998 and 1997.
 
ADVERTISING COSTS
 
    The cost of advertising is expensed as incurred. Advertising costs for the
years ended December 31, 1998, 1997 and 1996, were approximately $58,400,
$60,000 and $0, respectively.
 
INCOME TAXES
 
    Income taxes are calculated using the liability method of accounting for
income taxes specified by SFAS No. 109, ACCOUNTING FOR INCOME TAXES. Deferred
income taxes are recognized for the tax consequences of temporary differences
between the financial statements and income tax bases of assets, liabilities and
carryforwards using enacted tax rates. Valuation allowances are established when
necessary, to reduce deferred tax assets to the amount expected to be realized.
Realization is dependent upon future pre-tax earnings, the reversal of temporary
differences between book and tax income, and the expected tax rates in effect in
future periods.
 
FAIR VALUE OF FINANCIAL INSTRUMENTS
 
    The following methods and assumptions were used by the Company in estimating
its fair value disclosures for financial instruments:
 
    CASH AND CASH EQUIVALENTS:
 
    The carrying amount reported in the balance sheet for cash and cash
equivalents approximate fair value.
 
    INVESTMENT SECURITIES:
 
    The fair values of marketable debt and equity securities are based on quoted
market prices.
 
                                      F-8
<PAGE>
                              GRAPHON CORPORATION
 
                   SUMMARY OF ACCOUNTING POLICIES (CONTINUED)
 
    SHORT-TERM DEBT:
 
    The fair value of short-term debt is estimated based on current interest
notes available to the Company for debt instruments with similar terms and
maturities.
 
    As of December 31, 1998 and 1997, the fair values of the Company's financial
instruments approximate their historical carrying amounts.
 
LONG-LIVED ASSETS
 
    Long-lived assets are assessed for possible impairment whenever events or
changes in circumstances indicate that the carrying amounts may not be
recoverable, or whenever management has committed to a plan to dispose of the
assets. Such assets are carried at the lower of book value or fair value as
estimated by management based on appraisals, current market value, comparable
sales value, and undiscounted future cash flows as appropriate. Assets to be
held and used affected by such impairment loss are depreciated or amortized at
their new carrying amount over the remaining estimated life; assets to be sold
or otherwise disposed of are not subject to further depreciation or
amortization.
 
STOCK-BASED INCENTIVE PROGRAMS
 
    SFAS No. 123, ACCOUNTING FOR STOCK-BASED COMPENSATION, encourages entities
to recognize compensation costs for stock-based employee compensation plans
using the fair value based method of accounting defined in SFAS No. 123, but
allows for the continued use of the intrinsic value based method of accounting
prescribed by Accounting Principles Board (APB) Opinion No. 25, ACCOUNTING FOR
STOCK ISSUED TO EMPLOYEES. The Company continues to use the accounting
prescribed by APB Opinion No. 25 and as such is required to disclose pro forma
net income and earnings per share as if the fair value based method of
accounting had been applied.
 
ADOPTION OF NEW ACCOUNTING PRONOUNCEMENTS
 
    In February 1998, the Financial Accounting Standards Board (FASB) issued
SFAS No. 132, EMPLOYER'S DISCLOSURE ABOUT PENSIONS AND OTHER POSTRETIREMENT
BENEFITS, which standardizes the disclosure requirements for pension and other
postretirement benefits. The adoption of SFAS No. 132 is not expected to impact
the Company's current disclosures.
 
    In June 1998, the FASB issued SFAS No. 133, ACCOUNTING FOR DERIVATIVE
INSTRUMENTS AND HEDGING ACTIVITIES. SFAS No. 133 requires companies to recognize
all derivatives contracts as either assets or liabilities in the balance sheet
and to measure them at fair value. If certain conditions are met, a derivative
may be specifically designated as a hedge, the objective of which is to match
the timing of gain or loss recognition on the hedging derivative with the
recognition of (i) the changes in the fair value of the hedged asset or
liability that are attributable to the hedged risk or (ii) the earnings effect
of the hedged forecasted transaction. For a derivative not designated as a
hedging instrument, the gain or loss is recognized in income in the period of
change. SFAS No. 133 is effective for all fiscal quarters of fiscal years
beginning after June 15, 1999.
 
    Historically, the Company has not entered into derivatives contracts either
to hedge existing risks or for speculative purposes. Accordingly, the Company
does not expect adoption of the new standard on July 1, 1999 to affect its
financial statements.
 
                                      F-9
<PAGE>
                              GRAPHON CORPORATION
 
                   SUMMARY OF ACCOUNTING POLICIES (CONTINUED)
 
EARNINGS PER COMMON SHARE
 
    In February 1997, the FASB issued SFAS No. 128, EARNINGS PER SHARE, which
was effective December 28, 1997. Conforming to SFAS No. 128, the Company changed
its method of computing earnings per share and restated all prior periods
included in the financial statements. Under SFAS No. 128, the dilutive effect of
stock options is excluded from the calculation of basic earnings per share.
 
RECLASSIFICATIONS
 
    Certain amounts in the 1997 financial statements have been reclassified to
conform with the 1996 and 1998 presentation.
 
                                      F-10
<PAGE>
                              GRAPHON CORPORATION
 
                         NOTES TO FINANCIAL STATEMENTS
 
1. AVAILABLE-FOR-SALE SECURITIES
 
    As of December 31, 1997, the Company held 4,000 shares of common stock in a
publicly traded company. In 1998, the Company sold these shares and recorded a
loss on the sale of $16,500. A summary of available-for-sale securities follows:
 
<TABLE>
<CAPTION>
DECEMBER 31,                                                                     1998        1997
- ----------------------------------------------------------------------------     -----     ---------
<S>                                                                           <C>          <C>
Cost of securities..........................................................   $      --     $20,700
Less unrealized loss........................................................          --      12,100
                                                                                     ---   ---------
                                                                               $      --      $8,600
                                                                                     ---   ---------
                                                                                     ---   ---------
</TABLE>
 
2. PROPERTY AND EQUIPMENT
 
    Property and equipment consisted of the following:
 
<TABLE>
<CAPTION>
DECEMBER 31,                                                                1998       1997
- -----------------------------------------------------------------------  ----------  ---------
<S>                                                                      <C>         <C>
Equipment..............................................................  $  292,800  $  61,700
Furniture and fixtures.................................................     175,600      2,300
Leasehold improvements.................................................      13,500      1,900
                                                                         ----------  ---------
                                                                            481,900     65,900
Less accumulated depreciation and amortization.........................      58,600     15,600
                                                                         ----------  ---------
                                                                         $  423,300  $  50,300
                                                                         ----------  ---------
                                                                         ----------  ---------
</TABLE>
 
3. PURCHASED TECHNOLOGY
 
    In December 1998, the Company issued 3,886,503 shares of common stock and
388,650 warrants in exchange for certain fixed assets and technology (Note 6).
Based on the fair market value of the securities issued the aggregate purchase
price was $3,886,500, which was allocated to the following respective assets
based on their fair market value at the time of the transaction:
 
<TABLE>
<S>                                                               <C>
Equipment.......................................................  $  77,100
Furniture.......................................................    164,000
Purchased technology............................................  3,645,400
                                                                  ---------
                                                                  $3,886,500
                                                                  ---------
                                                                  ---------
</TABLE>
 
                                      F-11
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
4. ACCRUED EXPENSES
 
    Accrued expenses consisted of the following:
 
<TABLE>
<CAPTION>
DECEMBER 31,                                                               1998        1997
- ----------------------------------------------------------------------  ----------  ----------
<S>                                                                     <C>         <C>
Payroll and related expenses..........................................  $  140,600  $   34,400
Professional fees.....................................................     180,000      35,000
Accrued payroll taxes.................................................      76,700          --
Royalties.............................................................      65,300      46,100
Other.................................................................      36,300      27,400
                                                                        ----------  ----------
                                                                        $  498,900  $  142,900
                                                                        ----------  ----------
                                                                        ----------  ----------
</TABLE>
 
5. CONVERTIBLE NOTE PAYABLE
 
    In March 1998 the Company issued a convertible note payable for $475,000 to
an affiliate (the Agent Affiliate) of the placement agent dated September 2,
1998 for the Company's subsequent private placement offering of common stock
(the Offering). The convertible note bears interest at 10% and is due upon the
earlier date of the Company raising between $2,500,000 and $3,000,000 in the
Offering or six months after its commencement. The note is convertible into
shares of common stock at $1.00 per share at the option of the note holder (Note
15).
 
    In September 1998, the Agent Affiliate and the Company's CEO loaned $200,000
and $100,000, respectively, to the Company pursuant to convertible promissory
notes bearing interest at 8% per annum, which mature at the earlier of the first
closing of the Offering or 12 months from the date of the notes. Such notes, at
the option of the lender, may be converted into shares of common stock at $1.00
per share. In connection with this transaction, the Agent Affiliate and CEO were
issued warrants to purchase 100,000 and 50,000 shares, respectively, at $1.00
per share (Note 6).
 
    On December 31, 1998, the loan by the Agent Affiliate was converted into
200,000 shares of common stock. Also on December 31, 1998, the Company repaid
the $100,000 loan from the CEO, plus accrued interest.
 
6. STOCKHOLDERS' EQUITY
 
PRIOR BANKRUPTCY
 
    In November 1991, the Company filed a Voluntary Petition for Relief under
Chapter 11 of the Bankruptcy Code. At that time, the Company had indebtedness in
excess of $2.3 million and had 1,624,940 voting shares of common stock
outstanding. In July 1994, the Company's plan of reorganization under Chapter 11
(the Reorganization Plan) was confirmed.
 
    At the time of the confirmation of the Reorganization Plan, all shares of
stock, options, and warrants outstanding were canceled. In addition, the
Reorganization Plan provided for the issuance of 100 shares of the Company's
reorganized common stock in exchange for waiver of certain unsecured claims
against the Company by its then, and current, CEO.
 
    In addition, all administrative claims, priority claims, and allowed claims
in the administrative convenience class (generally, those under $200) were paid
in full. Unsecured creditors are to receive payment of 50% of the gross
royalties received by the Company from certain licensees up to the amount of
their total liability, through the year 2000. However, the largest unsecured
creditor will receive payments of 50% of the gross royalties received by the
Company from the revenue from certain licensees until its claim
 
                                      F-12
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
6. STOCKHOLDERS' EQUITY (CONTINUED)
is paid in full. The remaining 50% of the gross royalties received by the
Company from these certain licensees was available to the Company to conduct its
ongoing operations. As of December 31, 1998, the Company does not expect to pay
any additional significant amounts under the Reorganization Plan. Accordingly,
the amounts are treated as included in the relief of debt as part of the
bankruptcy confirmed in 1994.
 
    The Company believes that its royalty payment obligations under the
bankruptcy court order relate only to licenses in place as of July 11, 1994.
However, there is no assurance that the court will not interpret the obligation
of the Company to include making payments from royalties earned from subsequent
licenses or licenses that it may secure in the future, or that its current
technology will not be deemed derivative of its technology existing at July 11,
1994. Consequently, there can be no assurance that the Company will not be
required to repay the creditors referenced in the bankruptcy proceedings to the
full amount of its liability of approximately $2,230,000. In addition, there is
no guarantee that a creditor will not attempt to assert a claim for royalties
from subsequent licenses, which could be costly and could have a material
adverse effect on the Company's business, financial condition, and/or results of
operations.
 
COMMON STOCK
 
    During 1998, the CEO personally sold 633,254 shares of his stock to various
employees and directors of the Company. In addition, the Company issued and sold
508,500 shares under the Stock Grant Program, and granted 20,000 options, under
the Stock Option Plan, to employees of the Company. In accordance with APB
Opinion No. 25, ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES, the Company recorded,
in General and Administrative expense, $268,600 of compensation costs associated
with the sale of the above securities.
 
    In March 1998, the Company sold 500,000 shares of common stock for a
purchase price of $25,000 to the Agent Affiliate, concurrent with the issuance
of a convertible note for $475,000.
 
    In July 1998, the Company's Board of Directors declared a 60,000 to 1 stock
split. All references to number of shares and per share data in the financial
statements have been adjusted to reflect the stock split on a retroactive basis.
 
    In September 1998, the Company offered shares of its common stock through a
private placement stock offering (the Offering). The Offering established a
minimum and maximum offering of 2,500,000 and 4,500,000 shares of common stock,
respectively, at $1.00 per share, plus an additional 675,000 shares in the event
of over-subscriptions. As part of the Offering, the placement agent received
warrants to purchase 20,000 shares of common stock at $1.00 per share for each
100,000 shares sold through the Offering.
 
    Pursuant to a Subscription Agreement, executed by each investor who
purchased shares of the Company's common stock in connection with the first
closing of the Offering (the First Closing Investors), each First Closing
Investor holds the right to purchase his pro rata portion of any securities
issued by the Company for cash at an amount equal to the price, or other
consideration, for which such securities were issued until such time as there is
an initial public offering of the Company's securities. Such preemptive rights
do not apply to any securities issued pursuant to options, warrants and rights
and option plans existing at the time of the first closing.
 
    The investors who purchased common stock in connection with the second
closing of the Offering, as well as certain of the First Closing Investors who
agreed to amend their rights, hold the same right except that such right does
not apply to securities issued by the Company in connection with, or in
consideration
 
                                      F-13
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
6. STOCKHOLDERS' EQUITY (CONTINUED)
of, (i) the Company's acquisition of another corporation or entity by
consolidation, merger, purchase of all or substantially all of the assets or
other business combination in which the Company is the surviving entity,
provided such issuance is approved by a majority of the Board of Directors or
(ii) any equipment or real property lease, loan, credit line, guaranty of
indebtedness or acquisition of assets, other than cash but including
intellectual property or other intangible assets.
 
    Additionally, in March 1998, the CEO and Executive Vice President of the
Company entered into a contingent sale arrangement with respect to the sale of
3,500,000 shares of their common stock in the Company to the Agent Affiliate
under non-recourse installment notes. Under the terms of the notes, $200,000 was
due and paid with the commencement of the Offering, with $800,000; $1,000,000;
and $1,500,000 being due and payable January 1999, July 1999 and January 2000,
respectively (Note 13). The notes bear interest at 6%, payable quarterly, and
are secured by the underlying pledged shares. The CEO and Executive Vice
President retained voting privilege on these shares until fully paid for, and
said shares revert back to the CEO and Executive Vice President in case of
default by the Agent Affiliate.
 
    In December 1998, the Company issued 3,886,503 shares of common stock with
an ascribed value of $3,886,500, and granted warrants to purchase 388,650 shares
of common stock at $1.00 in exchange for certain fixed assets and technology.
The terms of this purchase agreement also require that the Company shall issue
an additional 1,607,000 shares of common stock, for no additional consideration,
on June 30, 2000, if the Company at that date has not completed an initial
public offering of any of its equity securities or a merger or sale of all, or
substantially all, of its assets.
 
STOCK PURCHASE WARRANTS
 
    As of December 31, 1998, the following common stock warrants were issued and
outstanding:
 
<TABLE>
<CAPTION>
                                                             SHARES SUBJECT TO
ISSUED WITH RESPECT TO:                                           WARRANT           EXERCISE PRICE   EXPIRATION DATE
- --------------------------------------------------------  ------------------------  ---------------  ---------------
<S>                                                       <C>                       <C>              <C>
Convertible notes.......................................            150,000            $    1.00                (A)
Private placement.......................................            639,800            $    1.00                (A)
Purchased technology....................................            388,650            $    1.00           12/2003
</TABLE>
 
- ------------------------------
 
(A) The warrants issued with respect to the convertible notes and the private
    placement expire upon earlier of three years after the closing date of a
    merger (Note 13), three years after the closing date of an IPO, or January
    2006.
 
STOCK GRANT PROGRAM
 
    In July 1998, the Company adopted a stock grant program (Stock Grant
Program), which is restricted to employees, officers, and consultants of the
Company. The Company has authorized the issuance of up to 1,300,000 shares of
the Company's common stock in connection with the Stock Grant Program and the
Stock Option Plan, discussed below.
 
    Under the Stock Grant Program, eligible individuals may, at the Plan
Administrator's discretion, be issued shares of common stock directly, either
through (a) the purchase of shares at a price not less than 85% of the estimated
fair market value of the stock at the time of the issuance, or (b) as a bonus
for past services rendered. Ownership of such shares generally vest over a four
year period. During August 1998, the Company issued 508,500 shares under the
Stock Grant Program.
 
                                      F-14
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
6. STOCKHOLDERS' EQUITY (CONTINUED)
STOCK OPTION PLAN
 
    In July 1998, the Company adopted a Stock Option Plan (The Plan). The Plan
is restricted to employees, officers, and consultants of the Company. Options
granted under the Plan generally vest over four years and are exercisable over
ten years. Non-satutory options are granted at prices not less than 85% of the
estimated fair value of the stock on the date of grant as determined by the
Board of Directors. Incentive options are granted at prices not less than 100%
of the estimated fair value of stock on the date of grant. However, options
granted to shareholders who own greater than 10% of the outstanding stock are
established at no less than 110% of the estimated fair value of the stock on the
date of grant.
 
    A summary of status of the Company's Stock Option Plan as of December 31,
1998, and changes during the year then ended is presented in the following
table:
 
<TABLE>
<CAPTION>
                                                                                               OPTIONS OUTSTANDING
                                                                                              ----------------------
                                                                                                          WEIGHTED-
                                                                                                           AVERAGE
                                                                                                          EXERCISE
                                                                                               SHARES       PRICE
                                                                                              ---------  -----------
<S>                                                                                           <C>        <C>
Balances, December 31, 1997.................................................................         --   $      --
Shares reserved.............................................................................    791,500          --
Granted.....................................................................................    (20,000)      0.075
                                                                                              ---------  -----------
Balances, December 31, 1998.................................................................    771,500   $   0.075
                                                                                              ---------  -----------
                                                                                              ---------  -----------
Exercisable at year-end.....................................................................      2,664   $   0.075
                                                                                              ---------  -----------
                                                                                              ---------  -----------
Weighted-average fair value of options granted during the period:...........................              $   0.075
                                                                                                         -----------
                                                                                                         -----------
</TABLE>
 
    The following table summarizes information about stock options outstanding
as of December 31, 1998:
 
<TABLE>
<CAPTION>
                                  OPTIONS OUTSTANDING                      OPTIONS EXERCISABLE
                  ---------------------------------------------------  ----------------------------
                                      WEIGHTED-           WEIGHTED-                     WEIGHTED-
                                       AVERAGE             AVERAGE                       AVERAGE
    RANGE OF                          REMAINING           EXERCISE                      EXERCISE
    EXERCISE        NUMBER        CONTRACTUAL LIFE          PRICE         NUMBER          PRICE
     PRICE        OUTSTANDING          (YEARS)            PER SHARE     EXERCISABLE     PER SHARE
- ----------------  -----------  -----------------------  -------------  -------------  -------------
<S>               <C>          <C>                      <C>            <C>            <C>
0$.075--$1.00...      20,000               9.67           $   0.075          2,664      $   0.075
</TABLE>
 
    SFAS No. 123, ACCOUNTING FOR STOCK-BASED COMPENSATION, requires the Company
to provide pro forma information regarding net (loss) income and (loss) earnings
per share as if compensation cost for the Company's stock option plan had been
determined in accordance with the fair value based method prescribed in SFAS
No.123. The Company estimates the fair value of stock options at the grant date
by using the Black-Scholes option pricing-model with the following weighted
average assumptions used for grants in 1998: dividend yield of 0; expected
volatility of 112%; risk-free interest rate of 5.7%; and expected lives of three
years for all plan options. Under the accounting provisions of SFAS No. 123, the
Company's pro forma net loss would have been $1,753,200, and the basic net loss
per common share would have remained unchanged at $0.26.
 
                                      F-15
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
7. INCOME TAXES
 
    The provision for income taxes for the years ended December 31, 1998, 1997
and 1996 consist of minimum state taxes.
 
    The following summarizes the differences between income tax expense and the
amount computed applying the federal income tax rate of 34%:
 
<TABLE>
<CAPTION>
DECEMBER 31,                                                  1998         1997        1996
- ---------------------------------------------------------  -----------  ----------  ----------
<S>                                                        <C>          <C>         <C>
Federal income tax at statutory rate.....................  $  (599,400) $   41,600  $  (63,800)
State income taxes, net of federal benefit...............     (102,400)      7,700     (11,500)
Utilization of net operating loss carryforwards..........           --     (51,400)         --
Tax benefit not currently recognizable...................      697,700          --      75,300
Other....................................................        4,900       3,000         800
                                                           -----------  ----------  ----------
Provision for income taxes...............................  $       800  $      900  $      800
                                                           -----------  ----------  ----------
                                                           -----------  ----------  ----------
</TABLE>
 
    Deferred income taxes and benefits result from temporary timing differences
in the recognition of certain expenses and income items for tax and financial
reporting purposes, as follows:
 
<TABLE>
<CAPTION>
DECEMBER 31,                                                            1998          1997
- ------------------------------------------------------------------  -------------  -----------
<S>                                                                 <C>            <C>
Net operating loss carryforward...................................  $   1,038,800  $   452,900
Tax credit carryforward...........................................        112,100       22,800
Capitalized software..............................................        (29,600)     (17,200)
Depreciation and amortization.....................................         (6,000)      (2,500)
Accrued compensation and benefits.................................         37,500        4,200
Reserves not currently deductible.................................         35,800       17,900
                                                                    -------------  -----------
Total deferred tax asset..........................................      1,188,600      478,100
Valuation allowance...............................................     (1,188,600)    (478,100)
                                                                    -------------  -----------
Net deferred tax asset............................................  $          --  $        --
                                                                    -------------  -----------
                                                                    -------------  -----------
</TABLE>
 
    The Company has net operating loss carryforwards available to reduce future
taxable income, if any, of approximately $2,780,800 for Federal income tax
purposes. The benefits from these carryforwards expire through 2018. As of
December 31, 1998, management believes it cannot be determined that it is more
likely than not that these carryforwards and its other deferred tax assets will
be realized, and accordingly, fully reserved for these deferred tax assets.
 
    In 1998 the Company experienced a "change of ownership" as defined by the
provisions of the Tax Reform Act of 1986. As such, the Company's utilization of
its net operating loss carryforwards will be limited to approximately $400,000
per year until such carryforwards are fully utilized.
 
8. CONCENTRATION OF CREDIT RISK
 
    Financial instruments, which potentially subject the Company to
concentration of credit risk, consist principally of cash and cash equivalents,
investments and trade receivables. The Company places its cash and cash
equivalents with high quality financial institutions and, by policy, limits the
amounts of credit exposure to any one financial institution. Available-for-sale
securities are held in public companies for which there is a ready market.
 
                                      F-16
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
8. CONCENTRATION OF CREDIT RISK (CONTINUED)
    The Company's accounts receivable are derived from many customers in various
industries. The Company believes any risk of accounting loss is significantly
reduced due to the diversity of its end-customers and geographic sales areas.
The Company performs credit evaluation of its customers' financial condition
whenever necessary, and generally does not require cash collateral or other
security to support customer receivables.
 
9. MAJOR CUSTOMERS
 
    For the year ended December 31, 1998, three customers accounted for
approximately 29%, 21% and 17% of revenues, respectively with related accounts
receivable as of December 31, 1998 of $0, $500,000 and $0, respectively.
 
    For the year ended December 31, 1997, one customer accounted for
approximately 70% of revenues, with related accounts receivable at December 31,
1997 of $62,500.
 
    In 1996, no one customer accounted for greater than 10% of revenues.
 
10. COMMITMENTS
 
OPERATING LEASES
 
    In April 1995, the Company entered into an operating lease for its current
headquarters facility, which is renewable in one-year increments for ten years.
In June 1998, the Company entered into a three-year non-cancelable operating
lease for a facility in Washington. In December 1998, the Company entered into a
five-year operating lease for a facility in New Hampshire, which is cancelable
as of October 31, 2001.
 
    The facility leases require the Company to pay certain maintenance and
operating expenses, such as taxes, insurance, and utilities. Rent expense for
the years ended December 31, 1998, 1997 and 1996 aggregated $48,300, $17,120 and
$14,900, respectively.
 
    Future minimum annual lease payments for these leases are as follows:
 
<TABLE>
<CAPTION>
YEAR ENDING DECEMBER 31,
- ----------------------------------------------------------------------------------
<S>                                                                                 <C>
1999..............................................................................  $  261,600
2000..............................................................................     256,900
2001..............................................................................     194,000
                                                                                    ----------
                                                                                    $  712,500
                                                                                    ----------
                                                                                    ----------
</TABLE>
 
ROYALTY AGREEMENTS
 
    The Company licenses essential components (Developed Technology) of its core
technology from three different parties (collectively, Software Developers) to
whom it pays royalties pursuant to three different exclusive license agreements
(Technology Agreements). Certain minor elements of the Company's technology
(Nonexclusive Technology) are also licensed from the Software Developers
pursuant to non-exclusive agreements (Nonexclusive Agreements). The Technology
Agreements and the Nonexclusive Agreements call for royalty payments to the
Software Developers. Such royalty payments are based on a percentage of net
revenues (Royalty Rate) received by the Company for sales of the Company's
products that contain the Developed Technology. The Royalty Rate is 4.8% and
2.9% for 1999 and 2000,
 
                                      F-17
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
10. COMMITMENTS (CONTINUED)
respectively. The Company also holds an option to purchase the Developed
Technology, and to purchase a perpetual license to the Nonexclusive Technology
from the Software Developers, which is exercisable beginning in December 2000,
for an aggregate of $6,000 plus the difference between royalties paid to date
and certain minimum royalty payments. If the Company does not exercise its
option, the Royalty Rate would continue at 2.0% with respect to the Developed
Technology.
 
    The Technology Agreements and the Nonexclusive Agreements also call for lump
sum payments by the Company in the event of a change in control transaction,
defined as a sale of all or substantially all of the Company's assets or a
merger or reorganization with another business entity after which the
shareholders of the Company hold 50% or less of the total equity or voting power
of the surviving entity. The payments are based upon a percentage of the total
consideration received by the Company or payable to its shareholders in such a
transaction (Transaction Rate). The Transaction Rate would be 4.8% and 2.9% if
the change in control transaction occurs in 1999 or 2000, respectively. Each of
the Technology and Nonexclusive Agreements, unless terminated earlier pursuant
to the terms of the Agreements, will terminate on September 6, 2006.
 
11. EMPLOYEE 401(K) PLAN
 
    In December 1998, the Company adopted a 401(k) Plan ("the Plan") to provide
retirement benefit for its employees. As allowed under Section 401(k) of the
Internal Revenue Code, the Plan provides tax-deferred salary deductions for
eligible employees.
 
    Employees may contribute up to 15% of their annual compensation to the Plan,
limited to a maximum annual amount as set periodically by the Internal Revenue
Service. The Company made no contributions to the Plan in 1998.
 
12. SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
 
    The following is supplemental disclosure for the statements of cash flows.
 
<TABLE>
<CAPTION>
YEARS ENDED DECEMBER 31,                                            1998        1997       1996
- --------------------------------------------------------------  ------------  ---------  ---------
<S>                                                             <C>           <C>        <C>
 
CASH PAID:
Income taxes..................................................  $        900  $     800  $     800
Interest......................................................  $     11,300  $   2,100  $      --
 
NONCASH INVESTING ACTIVITIES:
Stock and warrants issued for purchased technology and other
  assets......................................................  $  3,886,500  $      --  $      --
 
NONCASH FINANCING ACTIVITIES:
Issuance of common stock for convertible note payable.........  $    200,000  $      --  $      --
</TABLE>
 
13. SUBSEQUENT EVENTS
 
    In January 1999, the Company completed the third and final closing of the
Offering, in which it sold 1,963,868 shares of common stock at $1.00 per share,
for net proceeds of $1,708,600, and granted additional warrants to purchase
392,774 shares of common stock.
 
                                      F-18
<PAGE>
                              GRAPHON CORPORATION
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
13. SUBSEQUENT EVENTS (CONTINUED)
    In January 1999, the convertible note payable for $475,000 to the Agent
Affiliate was retired from proceeds from the third closing of the Offering.
 
    In January 1999, the CEO and Executive Vice President received $800,000 for
the sale of 800,000 shares of their common stock of the Company to the Agent
Affiliate.
 
    In February 1999, the Company and its shareholders entered into a merger
agreement with Unity First Acquisition Corporation (UFAC), a publicly-traded
holding company in New York, under which GraphOn will exchange all its
outstanding common stock for UFAC shares at the rate of 0.5576 UFAC shares for
every 1.00 GraphOn shares. The transaction will be a forward merger, with UFAC
surviving the merger and changing its name to GraphOn Corporation. The merger is
expected to close in June 1999 and is subject to approval of the respective
shareholders of UFAC and GraphOn Corporation.
 
                                      F-19
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To Unity First Acquisition Corp:
 
    We have audited the accompanying balance sheets of Unity First Acquisition
Corp. (a Delaware corporation in the development stage) as of July 31, 1998 and
1997, and the related statements of operations, changes in shareholders' equity
and cash flows for the years ended July 31, 1998 and 1997, for the period from
inception (May 30, 1996) to July 31, 1996, and for the period from inception
(May 30, 1996) to July 31, 1998. These financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements based on our audits.
 
    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Unity First Acquisition
Corp. as of July 31, 1998 and 1997, and the results of its operations and its
cash flows for the years ended July 31, 1998 and 1997, for the period from
inception (May 30, 1996) to July 31, 1996, and for the period from inception
(May 30, 1996) to July 31, 1998, in conformity with generally accepted
accounting principles.
 
    The accompanying financial statements have been prepared assuming that the
Company will continue as a going concern. As discussed in Note 1 to the
financial statements, the Company is a development stage enterprise with no
significant operating results to date and, at July 31, 1998, had $196 of
remaining unrestricted assets available to meet its current obligations. These
factors raise substantial doubt about the Company's ability to continue as a
going concern. Management's plans in regards to these matters are described in
Notes 1, 3 and 10. The financial statements do not include any adjustments that
might result from the outcome of this uncertainty.
 
                                          /s/ ARTHUR ANDERSEN LLP
                                          ARTHUR ANDERSEN LLP
 
New York, New York
December 10, 1998
 
                                      F-20
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                                 JULY 31,
                                                                                        --------------------------
<S>                                                                                     <C>           <C>
                                                                                            1998          1997
                                                                                        ------------  ------------
                                                      ASSETS
CASH AND CASH EQUIVALENTS.............................................................  $        196  $    266,533
RESTRICTED CASH AND INVESTMENTS.......................................................     6,489,707     6,198,488
                                                                                        ------------  ------------
                                                                                        ------------  ------------
    TOTAL ASSETS......................................................................  $  6,489,903  $  6,465,021
                                                                                        ------------  ------------
                                                                                        ------------  ------------
                                       LIABILITIES AND STOCKHOLDERS' EQUITY
LIABILITIES:
ACCRUED EXPENSES......................................................................  $    379,082  $     67,634
ADVANCES FROM AFFILIATE...............................................................        33,000            --
INCOME TAXES PAYABLE..................................................................            --         3,575
                                                                                        ------------  ------------
    TOTAL LIABILITIES.................................................................       412,082        71,209
                                                                                        ------------  ------------
COMMITMENTS AND CONTINGENCIES
Common stock, $.0001 par value, 249,875 shares subject to possible conversion, at
  conversion value....................................................................     1,297,301     1,239,380
                                                                                        ------------  ------------
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par value, 5,000 shares authorized, no shares issued or
  outstanding.........................................................................            --            --
Common stock, $.0001 par value, 20,000,000 shares authorized, 1,625,125 shares issued
  and outstanding (excluding 249,875 shares subject to possible conversion)...........           163           163
Additional paid-in capital............................................................     5,104,711     5,162,632
Deficit accumulated during the development stage......................................      (324,354)       (8,363)
                                                                                        ------------  ------------
    TOTAL STOCKHOLDERS' EQUITY........................................................     4,780,520     5,154,432
                                                                                        ------------  ------------
    TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY........................................  $  6,489,903  $  6,465,021
                                                                                        ------------  ------------
                                                                                        ------------  ------------
</TABLE>
 
                See Accompanying Notes to Financial Statements.
 
                                      F-21
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                      FOR THE YEAR ENDED JULY  FROM MAY 30, 1996
                                                                31,                 (DATE OF         CUMULATIVE
                                                      -----------------------      INCEPTION)         AMOUNTS
                                                         1998         1997      TO JULY 31, 1996   FROM INCEPTION
                                                      -----------  ----------  ------------------  --------------
<S>                                                   <C>          <C>         <C>                 <C>
REVENUE.............................................  $        --  $       --     $         --      $         --
                                                      -----------  ----------         --------     --------------
EXPENSES:
    General and administrative......................      612,237     192,489           15,000           819,726
                                                      -----------  ----------         --------     --------------
OTHER INCOME:
    Interest and dividends..........................      296,246     202,701               --           498,947
                                                      -----------  ----------         --------     --------------
OPERATING (LOSS) INCOME.............................     (315,991)     10,212          (15,000)         (320,779)
PROVISION FOR INCOME TAXES..........................           --       3,575               --             3,575
                                                      -----------  ----------         --------     --------------
NET (LOSS) INCOME...................................  $  (315,991) $    6,637     $    (15,000)     $   (324,354)
                                                      -----------  ----------         --------     --------------
                                                      -----------  ----------         --------     --------------
NET (LOSS) INCOME PER COMMON SHARE--BASIC AND
  DILUTED...........................................  $      (.17) $       --     $       (.02)
                                                      -----------  ----------         --------
                                                      -----------  ----------         --------
WEIGHTED AVERAGE NUMBER OF COMMON SHARES
  OUTSTANDING-- BASIC AND DILUTED...................    1,875,000   1,515,000          625,000
                                                      -----------  ----------         --------
                                                      -----------  ----------         --------
</TABLE>
 
                See Accompanying Notes to Financial Statements.
 
                                      F-22
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                     FOR THE YEAR ENDED JULY    FROM MAY 30, 1996
                                                               31,                   (DATE OF         CUMULATIVE
                                                    --------------------------      INCEPTION)         AMOUNTS
                                                       1998          1997        TO JULY 31, 1996   FROM INCEPTION
                                                    -----------  -------------  ------------------  --------------
<S>                                                 <C>          <C>            <C>                 <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net (loss) income...............................  $  (315,991) $       6,637     $    (15,000)     $   (324,354)
CHANGES IN CERTAIN ASSETS AND LIABILITIES:
  Increase in accrued expenses....................      311,448         92,634               --           404,082
  (Decrease) increase in income taxes payable.....       (3,575)         3,575               --                --
                                                    -----------  -------------         --------     --------------
      NET CASH (USED IN) PROVIDED BY OPERATING
        ACTIVITIES................................       (8,118)       102,846          (15,000)           79,728
                                                    -----------  -------------         --------     --------------
 
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from issuance of common stock..........           --      6,402,112               63         6,402,175
  Advances from affiliate.........................       33,000         55,417           40,500           128,917
  Repayment to affiliate..........................           --        (95,917)              --           (95,917)
  Deferred registration costs.....................           --             --          (25,000)          (25,000)
                                                    -----------  -------------         --------     --------------
      NET CASH PROVIDED BY FINANCING ACTIVITIES...       33,000      6,361,612           15,563         6,410,175
                                                    -----------  -------------         --------     --------------
 
CASH FLOWS FROM INVESTING ACTIVITIES:
  (Increase) in restricted cash and investments...     (291,219)    (6,198,488)              --        (6,489,707)
                                                    -----------  -------------         --------     --------------
NET (DECREASE) INCREASE IN CASH AND CASH
  EQUIVALENTS.....................................     (266,337)       265,970              563               196
CASH AND CASH EQUIVALENTS, beginning of period....      266,533            563               --                --
                                                    -----------  -------------         --------     --------------
CASH AND CASH EQUIVALENTS, end of period..........  $       196  $     266,533     $        563      $        196
                                                    -----------  -------------         --------     --------------
                                                    -----------  -------------         --------     --------------
</TABLE>
 
                See Accompanying Notes to Financial Statements.
 
                                      F-23
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
             STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT)
 
                          FOR THE PERIOD MAY 30, 1996
                   (DATE OF INCEPTION) THROUGH JULY 31, 1996
               AND EACH OF THE YEARS ENDED JULY 31, 1998 AND 1997
 
<TABLE>
<CAPTION>
                                                                                       DEFICIT
                                               COMMON STOCK         ADDITIONAL   ACCUMULATED DURING
                                          -----------------------    PAID-IN       THE DEVELOPMENT
                                            SHARES     PAR VALUE     CAPITAL            STAGE            TOTAL
                                          ----------  -----------  ------------  -------------------  ------------
<S>                                       <C>         <C>          <C>           <C>                  <C>
 
Issuance of stock to original founders
  for cash, at par value................     625,000   $      63   $         --     $          --     $         63
 
Net (loss) for the period May 30, 1996
  (date of inception) through July 31,
  1996..................................          --          --             --           (15,000)         (15,000)
                                          ----------       -----   ------------        ----------     ------------
 
Balance, July 31, 1996..................     625,000          63             --           (15,000)         (14,937)
 
Issuance of units to public, net of
  shares subject to possible
  conversion............................   1,000,125         100      5,162,632                --        5,162,732
 
Net income for the year ended
  July 31, 1997.........................          --          --             --             6,637            6,637
                                          ----------       -----   ------------        ----------     ------------
 
Balance, July 31, 1997..................   1,625,125         163      5,162,632            (8,363)       5,154,432
 
Net (loss) for the year ended
  July 31, 1998.........................          --          --             --          (315,991)        (315,991)
 
Increase in value attributable to common
  shares subject to possible
  conversion............................          --          --        (57,921)               --          (57,921)
                                          ----------       -----   ------------        ----------     ------------
 
Balance, July 31, 1998..................   1,625,125   $     163   $  5,104,711     $    (324,354)    $  4,780,520
                                          ----------       -----   ------------        ----------     ------------
                                          ----------       -----   ------------        ----------     ------------
</TABLE>
 
                See Accompanying Notes to Financial Statements.
 
                                      F-24
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                         NOTES TO FINANCIAL STATEMENTS
 
NOTE 1--ORGANIZATION AND OPERATIONS
 
    Unity First Acquisition Corp. ("Unity") was incorporated in the State of
Delaware on May 30, 1996 to serve as a vehicle to effect a merger, exchange of
capital stock, asset acquisition or other similar business combination (a
"Business Combination"). Unity is currently in the development stage. All
activity of Unity to date relates to its formation, fund-raising, and search to
effect a Business Combination.
 
NOTE 2--SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    UTILIZATION OF ESTIMATES
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
    NET INCOME (LOSS) PER COMMON SHARE
 
    Net income (loss) per common share is computed based on the weighted average
number of common shares outstanding and common stock equivalents, if not
anti-dilutive.
 
    In 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards ("SFAS") No. 128, "Earnings per Share". This
statement establishes standards for computing and presenting earnings per share
("EPS"), replacing the presentation of primary EPS with a presentation of Basic
EPS. For entities with complex capital structures, the statement requires the
dual presentation of both Basic EPS and Diluted EPS on the face of the statement
of operations. Under this new standard, Basic EPS is computed based on the
weighted average number of shares actually outstanding during the year. Diluted
EPS includes the effect of potential dilution from the exercise of outstanding
dilutive stock options and warrants into common stock using the treasury stock
method. SFAS No. 128 is effective for financial statements issued for periods
ending after December 15, 1997, and early application is not permitted. The
adoption of this statement did not have a material effect on Unity's financial
position or on the results of operations.
 
NOTE 3--OFFERING OF SECURITIES
 
    On November 12, 1996, Unity completed its initial public offering (the
"Offering") consisting of the sale of 1,250,000 units (the "Units"). Each Unit
consisted of one share of Unity's Common Stock ("Common Stock"), $.0001 par
value, one Class A Redeemable Warrant (the "A Warrants") and one Class B
Redeemable Warrant (the "B Warrants"). Each A Warrant and B Warrant entitles the
holder to purchase from Unity one share of Common Stock at an exercise price of
$5.50 and $7.50, respectively, commencing on the later of a Business Combination
or November 12, 1997. The A Warrants and B Warrants are redeemable, each as a
class, in whole and not in part, at the option of Unity and with the consent of
the managing underwriter ("Underwriter") upon 30 days notice at any time after
the Warrants become exercisable, only in the event that the reported high bid
price of the Common Stock is at least $8.50 per share, with respect to the Class
A Warrants, and $10.50 per share, with respect to the Class B Warrants for the
20 consecutive trading days immediately prior to notice of redemption, at a
price of $.05 per A Warrant or B Warrant. The Warrants are immediately separable
and transferable. In connection with
 
                                      F-25
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 3--OFFERING OF SECURITIES (CONTINUED)
the Offering, Unity granted the Underwriter an option, exercisable within 45
business days from November 12, 1996, to purchase up to 187,500 additional Units
at $6.00 per unit. This option, which was solely for the purpose of covering
over-allotments, was not exercised by the Underwriter either in whole or in part
prior to its expiration date. None of the A and B Warrants have been exercised
through July 31, 1998.
 
    Net proceeds of the Offering to Unity including the purchase of warrants by
the Underwriter, discussed below, were $6,402,112, after deducting related
expenses. Ninety percent (90%) of the net proceeds are held in an interest
bearing Trust Fund until the earlier of (i) written notification by Unity of its
need for all or substantially all of the net proceeds for the purpose of
implementing or facilitating the implementation of a Business Combination or
(ii) the liquidation of Unity (See Note 10).
 
    Unity's Certificate of Incorporation requires that in the event that Unity
does not effect a Business Combination within eighteen months from the date of
the Offering, Unity will be dissolved and Unity will distribute to all Public
Stockholders in proportion to their respective equity interests in Unity, an
aggregate sum equal to Unity's book value, calculated as of the approval date of
such proposal. In this regard, Unity's Initial Stockholders, including all of
the officers and directors of Unity, have agreed to waive their respective
rights to participate in any such liquidation distribution (See Note 10).
 
    All of Unity's Initial Stockholders, including all of its officers and
directors, have agreed to vote their respective shares of Common Stock in
accordance with the vote of the majority of all non-affiliated future
stockholders of Unity with respect to a Business Combination. In addition, Unity
stock owned by all of the executive officers and directors of Unity, their
affiliates and by all persons owning 5% or more of the currently outstanding
shares of Common Stock was placed in escrow until the earlier of (i) the
occurrence of a Business Combination or (ii) 18 months from the date of the
Offering. During the escrow period, such stockholders are not able to sell or
otherwise transfer their respective shares of Common Stock, but will retain all
other rights as stockholders of Unity, including, without limitation, the right
to vote such shares of Common Stock.
 
    In connection with the Offering, Unity sold to the Underwriter and its
designees, for $100, warrants (the "Underwriter's Warrants") to purchase up to
125,000 Units at an exercise price of $6.60 per Unit. The Underwriter's Warrants
will be exercisable for a period of five years commencing on November 12, 1996.
The Underwriter's Warrants are not redeemable and have not been exercised.
 
NOTE 4--RESTRICTED CASH AND INVESTMENTS
 
    Unity, pursuant to the terms of the Offering, placed $6,007,500 as of
November 19, 1996, in a trust account which was primarily invested in a
short-term U.S. Government Security. These funds are subject to release upon the
earlier of (i) written notification by Unity of its need for all or
substantially all of the net proceeds for the purpose of implementing or
facilitating the implementation of a Business Combination or (ii) the
liquidation of Unity (See Note 10).
 
NOTE 5--CAPITAL STOCK
 
    Unity's Certificate of Incorporation authorizes the issuance of 20,000,000
shares of Common Stock. There are 14,862,500 authorized but unissued shares of
Common Stock available for issuance (after appropriate reserves for the issuance
of Common Stock in connection with the Class A Redeemable Warrants and Class B
Redeemable Warrants, the Underwriters' Warrants, the executive officers and
 
                                      F-26
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 5--CAPITAL STOCK (CONTINUED)
directors' Class A Warrants and Class B Warrants, and future grants under
Unity's 1996 Stock Option Plan). Unity's Board of Directors has the power to
issue any or all of the future grants under the Company's 1996 Stock Option
Plan. Unity's Board of Directors has the power to issue any or all of the
authorized but unissued Common Stock without stockholder approval.
 
    Unity currently has no commitments to issue any shares of Common Stock other
than as described in the Offering; however, Unity will, in all likelihood, issue
a substantial number of additional shares in connection with a Business
Combination (See Note 10). To the extent that additional shares of Common Stock
are issued, dilution to the interests of Unity's stockholders participating in
the Offering will occur.
 
    The Board of Directors of Unity is empowered, without stockholder approval,
to issue up to 5,000 shares of "blank check" preferred stock (the "Preferred
Stock") with dividend, liquidation, conversion, voting or other rights which
could adversely affect the voting power or other rights of the holders of
Unity's Common Stock. To date, no shares of preferred stock have been issued.
 
NOTE 6--RELATED PARTY TRANSACTIONS
 
    The Chairman of the Board of Directors and the President of Unity are
principal shareholders, officers and directors of Unity Venture Capital
Associates Ltd. ("Venture") which owns shares in Unity. Beginning June 1, 1996,
commensurate with Unity's activities primarily related to the Offering, Unity
agreed to pay Venture a monthly fee of $7,500 for general and administrative
services, including the use of office space in premises occupied by Venture. At
July 31, 1998, Unity owed $33,000 to Venture for administrative services.
 
    Through July 31, 1996, Unity had obtained advances totaling $25,500 from
Venture to cover expenses related to the Offering. These advances were repaid
out of the proceeds of the Offering in 1997.
 
NOTE 7--STOCK OPTION PLAN
 
    On May 30, 1996, Unity's Board of Directors approved a stock option plan
(the "Plan"). The Plan, which is subject to shareholder approval, provides for
issuance of up to 187,500 options (the "Options") to acquire shares of Unity's
Common Stock.
 
    The Options are intended to qualify either as incentive stock options
("Incentive Stock Options") within the meaning of Section 422 of the Internal
Revenue Code of 1986 or as options which are not intended to meet the
requirements of such section ("Nonstatutory Stock Options"). The Options may be
granted under the Plan to persons who, in the case of Incentive Stock Options,
are key employees (including officers) of the Company, or, in the case of
Nonstatutory Stock Options, are key employees (including officers) and
nonemployee directors of the Company, except that Nonstatutory Stock Options may
not be granted to a holder of more than 10% of the total voting power of Unity.
 
    The exercise price of all Incentive Stock Options granted under the Plan
must be at least equal to the fair market value of such shares on the date of
grant or, in the case of Incentive Stock Options granted to the holder of 10% or
more of Unity's Common Stock, at least 110% of the fair market value of such
shares on the date of grant. The exercise price of all Nonstatutory Stock
Options granted under the Plan shall be determined by the Board of Directors of
Unity at the time of grant. The maximum exercise period for which the Options
may be granted is ten years from the date of grant (five years in the case of
Incentive Stock Options granted to an individual owning more than 10% of Unity's
Common Stock.) The aggregate
 
                                      F-27
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 7--STOCK OPTION PLAN (CONTINUED)
fair market value (determined at the date of the option grant) of such shares
with respect to which Incentive Stock Options are exercisable for the first time
by the holder of the option during any calendar year shall not exceed $100,000.
 
    The FASB issued Statement of Financial Accounting Standards No. 123,
"Accounting for Stock Based Compensation" ("SFAS 123"), which requires companies
either to reflect in their financial statements or reflect as supplemental
disclosure the impact on earnings and earnings per share of the fair value of
stock based compensation using certain pricing models for the option component
of stock option plans. As of July 31, 1998, no options have been granted under
the Plan. Disclosure, as required by SFAS 123, will be made upon the issuance of
options.
 
NOTE 8--INCOME TAXES
 
    Income taxes are accounted for in accordance with Statement of Financial
Accounting Standards No. 109, "Accounting for Income Taxes." Under this method,
deferred income taxes are determined based on differences between the tax bases
of assets and liabilities and their financial reporting amounts at each year
end, and are measured based on enacted tax rates and laws that will be in effect
when the differences are expected to reverse. Valuation allowances are
established, when necessary, to reduce deferred tax assets to the amount
expected to be realized.
 
NOTE 9--CONTINGENCY
 
    Unity has agreed to indemnify the Underwriter against certain liabilities,
including liabilities under the Securities Act.
 
NOTE 10--PENDING ACQUISITION
 
    On May 6, 1998, Unity entered into a letter of intent to effectuate a
Business Combination ("Merger") with Worlds, Inc. ("Worlds"), a company engaged
in developing music-oriented content applications for its proprietary 3D
Internet technology for consumer markets, as well as developing select business
oriented applications. On June 25, 1998, Unity and Worlds entered into a
definitive Agreement and Plan of Merger and Reorganization (the "Merger
Agreement") to effectuate the Merger.
 
    On October 29, 1998, Unity's stockholders, at a special meeting convened to
consider whether to approve or reject the Merger contemplated by the Merger
Agreement, rejected the Merger.
 
    As a consequence of the rejection of the Worlds Merger by the Unity Public
Stockholders, Article SEVENTH, paragraph (c) of Unity's Certificate of
Incorporation would have required the liquidation and dissolution of Unity (the
"Liquidation") no later than January 11, 1999. Had such Liquidation taken place
on that date, the Unity Public Stockholders, collectively, would have received a
liquidating distribution representing their respective pro rata interest in a
trust fund established for their benefit upon the consummation of the IPO, which
currently approximates $6.5 million.
 
    On December 10, 1998, Unity entered into a letter of intent to effectuate a
Business Combination with GraphOn Corporation, a privately owned developer and
marketer of proprietary "thin client" software that enables a diverse range of
desktop computing devices ("desktops") to easily access and utilize UNIX
applications from an location, over both fast networks and slow internet
connections.
 
                                      F-28
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
NOTE 10--PENDING ACQUISITION (CONTINUED)
    Unity's Board of Directors has unanimously concluded that a Business
Combination with GraphOn would be in the best interests of both Unity and its
stockholders, including the Unity Public Stockholders. Consequently, Unity's
Board of Directors has sought and obtained an opinion from special Delaware
counsel to the effect that such Article SEVENTH, paragraph (c), which attempts
to waive Unity's statutory right to amend the Unity Certificate of
Incorporation, is contrary to Delaware law and cannot prevent Unity and its
stockholders from amending the Unity Certificate of Incorporation.
 
    Subject to its submission under the Securities Exchange Act of 1934, as
amended, of proxy solicitation materials, Unity's Board of Directors intends to
seek the approval of the Unity Public Stockholders to (i) amend the Unity
Certificate of Incorporation to remove the provision therein that would have
required Unity to commence the Liquidation as a consequence of its inability to
consummate a Business Combination within the period defined by Article SEVENTH,
paragraph (c) of the Unity Certificate of Incorporation and, if such approval is
obtained, to (ii) consider and vote upon a proposal to approve Unity's Business
Combination with GraphOn. There can be no assurance that the Unity Stockholders
will approve the proposed amendment to the Certificate of Incorporation, or the
proposed Business Combination with GraphOn Corporation.
 
    The proposed amendment to the Unity Certificate of Incorporation will not
affect the right of any Unity Public Stockholders to convert his shares of Unity
Common Stock into cash, as provided in Article SEVENTH of the Unity Certificate
of Incorporation, should such Unity Public Stockholder object to the GraphOn
Business Combination and such Business Combination is approved by a majority in
equity interest of the Unity Public Stockholders and thereafter consummated.
 
    Depending upon the voting of the Unity Public Stockholders as to the
amendment to the Unity Cerficate of Incorporation or the Business Combination
with GraphOn, the Company may liquidate. The accompanying financial statements
have not been presented on a liquidation basis of accounting as the Company has
not decided to liquidate. Additionally, it is not expected that the carrying
value of the Company's assets and liabilities would be materially different if
presented under a liquidation basis based on the nature of such assets and
liabilities.
 
                                      F-29
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                      JANUARY 31,      JULY 31,
                                                                                         1999            1998
                                                                                    ---------------  ------------
<S>                                                                                 <C>              <C>
                                                                                      (UNAUDITED)
                                                     ASSETS
CASH AND CASH EQUIVALENTS.........................................................   $         956    $      196
RESTRICTED CASH AND INVESTMENTS...................................................       6,604,929     6,489,707
                                                                                    ---------------  ------------
        TOTAL ASSETS..............................................................   $   6,605,885    $6,489,903
                                                                                    ---------------  ------------
                                                                                    ---------------  ------------
 
                                      LIABILITIES AND SHAREHOLDERS' EQUITY
LIABILITIES:
    ACCRUED EXPENSES..............................................................   $     690,817    $  379,082
    ADVANCES FROM AFFILIATE.......................................................          76,282        33,000
                                                                                    ---------------  ------------
        TOTAL LIABILITIES.........................................................         767,099       412,082
                                                                                    ---------------  ------------
COMMITMENTS AND CONTINGENCIES:
Common stock, $.0001 par value, 249,875 shares subject to possible conversion, at
  conversion value................................................................       1,320,325     1,297,301
                                                                                    ---------------  ------------
SHAREHOLDERS' EQUITY:
Preferred stock, $.01 par value, 5,000 shares authorized, no shares issued or
  outstanding.....................................................................              --            --
Common stock, $.0001 par value, 20,000,000 shares authorized, 1,625,125 shares
  issued and outstanding (excluding 249,875 shares subject to possible
  conversion).....................................................................             163           163
Additional paid-in capital........................................................       5,081,687     5,104,711
Deficit accumulated during the development stage..................................        (563,389)     (324,354)
                                                                                    ---------------  ------------
        TOTAL SHAREHOLDERS' EQUITY................................................       4,518,461     4,780,520
                                                                                    ---------------  ------------
        TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY................................   $   6,605,885    $6,489,903
                                                                                    ---------------  ------------
                                                                                    ---------------  ------------
</TABLE>
 
                  See Selected Notes to Financial Statements.
 
                                      F-30
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                      STATEMENTS OF OPERATIONS (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                            FOR THE                     FOR THE
                                                       SIX MONTHS ENDED            THREE MONTHS ENDED
                                                          JANUARY 31,                 JANUARY 31,            CUMULATIVE
                                                  ---------------------------  --------------------------     AMOUNTS
                                                      1999           1998          1999          1998      FROM INCEPTION
                                                  -------------  ------------  ------------  ------------  --------------
<S>                                               <C>            <C>           <C>           <C>           <C>
REVENUE.........................................  $          --  $         --  $         --  $         --   $         --
                                                  -------------  ------------  ------------  ------------  --------------
EXPENSES:
  General and administrative....................        378,450       110,100        88,900        54,144      1,198,176
OTHER INCOME:
  Interest and dividends........................        139,415       149,594        64,868        74,070        638,362
                                                  -------------  ------------  ------------  ------------  --------------
OPERATING (LOSS) INCOME.........................       (239,035)       39,494       (24,032)       19,926       (559,814)
PROVISION FOR INCOME TAXES......................             --         8,968            --         1,105          3,575
                                                  -------------  ------------  ------------  ------------  --------------
NET (LOSS) INCOME...............................  $    (239,035) $     30,526  $    (24,032) $     18,821   $   (563,389)
                                                  -------------  ------------  ------------  ------------  --------------
                                                  -------------  ------------  ------------  ------------  --------------
NET (LOSS) INCOME PER COMMON SHARE--BASIC AND
  DILUTED.......................................  $        (.13) $        .02  $       (.01) $        .01
                                                  -------------  ------------  ------------  ------------
                                                  -------------  ------------  ------------  ------------
WEIGHTED AVERAGE NUMBER OF
  COMMON SHARES OUTSTANDING.....................      1,875,000     1,875,000     1,875,000     1,875,000
                                                  -------------  ------------  ------------  ------------
                                                  -------------  ------------  ------------  ------------
</TABLE>
 
                  See Selected Notes to Financial Statements.
 
                                      F-31
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
                      STATEMENTS OF CASH FLOWS (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                  FOR THE
                                                                                 SIX MONTHS
                                                                                   ENDED
                                                                                JANUARY 31,           CUMULATIVE
                                                                          ------------------------     AMOUNTS
                                                                             1999         1998      FROM INCEPTION
                                                                          -----------  -----------  --------------
<S>                                                                       <C>          <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net (loss) income.....................................................  $  (239,035) $    30,526   $   (563,389)
CHANGES IN CERTAIN ASSETS AND LIABILITIES:
Increase (decrease) in accrued expenses.................................      311,735      (20,208)       715,817
                                                                          -----------  -----------  --------------
      NET CASH PROVIDED BY OPERATING ACTIVITIES.........................       72,700       10,318        152,428
                                                                          -----------  -----------  --------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from issuance of common stock................................           --           --      6,402,175
  Advances from affiliate...............................................       43,282           --        172,199
  Repayment to affiliate................................................           --           --        (95,917)
  Deferred registration costs...........................................           --           --        (25,000)
                                                                          -----------  -----------  --------------
      NET CASH PROVIDED BY FINANCING ACTIVITIES.........................       43,282           --      6,453,457
                                                                          -----------  -----------  --------------
CASH FLOWS FROM INVESTING ACTIVITIES:
  (Increase) in restricted cash and investments.........................     (115,222)    (145,133)    (6,604,929)
                                                                          -----------  -----------  --------------
NET INCREASE (DECREASE) IN CASH AND
  CASH EQUIVALENTS......................................................          760     (134,815)           956
CASH AND CASH EQUIVALENTS, beginning of period..........................          196      266,533             --
                                                                          -----------  -----------  --------------
CASH AND CASH EQUIVALENTS, end of period................................  $       956  $   131,718   $        956
                                                                          -----------  -----------  --------------
                                                                          -----------  -----------  --------------
</TABLE>
 
                  See Selected Notes to Financial Statements.
 
                                      F-32
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
            STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED)
 
                   FOR THE SIX MONTHS ENDED JANUARY 31, 1999
 
<TABLE>
<CAPTION>
                                                                                         (DEFICIT)
                                                                                        ACCUMULATED
                                                      COMMON STOCK         ADDITIONAL    DURING THE
                                                 -----------------------    PAID-IN     DEVELOPMENT
                                                   SHARES     PAR VALUE     CAPITAL        STAGE         TOTAL
                                                 ----------  -----------  ------------  ------------  ------------
<S>                                              <C>         <C>          <C>           <C>           <C>
Balance, July 31, 1998.........................   1,875,000   $     163   $  5,104,711   $ (324,354)  $  4,780,520
Net loss for the six months ended
  January 31, 1999.............................          --          --             --     (239,035)      (239,035)
Increase in value attributable to common shares
  subject to possible conversion...............          --          --        (23,024)          --        (23,024)
                                                 ----------       -----   ------------  ------------  ------------
Balance, January 31, 1999......................   1,875,000   $     163   $  5,081,687   $ (563,389)  $  4,518,461
                                                 ----------       -----   ------------  ------------  ------------
                                                 ----------       -----   ------------  ------------  ------------
</TABLE>
 
                  See Selected Notes to Financial Statements.
 
                                      F-33
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
               SELECTED NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
 
1. FINANCIAL STATEMENTS
 
    The financial statements have been prepared by Unity First Acquisition Corp.
("Unity"), without audit. In the opinion of management, all adjustments (which
include only normal recurring adjustments) necessary to present fairly the
financial position, results of operations and cash flows at January 31, 1999 and
for all periods presented have been made. The results of operations for the
period ended January 31, 1999 are not necessarily indicative of the operating
results for a full year.
 
    Certain information and footnote disclosures prepared in accordance with
general accepted accounting principles and normally included in the financial
statements have been condensed or omitted. It is suggested that these financial
statements be read in conjunction with the financial statements and notes
included in Unity's annual report Form 10-K for the year ended July 31, 1998.
 
2. ORGANIZATION AND OPERATIONS
 
    Unity was incorporated in the State of Delaware on May 30, 1996 to serve as
a vehicle to effect a merger, exchange of capital stock, asset acquisition or
other similar business combination (a "Business Combination"). Unity is
currently in the development stage. All activity of Unity to date relates to its
formation, fund-raising, and search to effect a Business Combination.
 
3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    UTILIZATION OF ESTIMATES
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
    NET INCOME (LOSS) PER COMMON SHARE
 
    Net income (loss) per common share is computed based on the weighted average
number of common shares outstanding and common stock equivalents, if not
anti-dilutive.
 
    In 1997, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards ("SFAS") No. 128, "Earnings per Share". This
statement establishes standards for computing and presenting earnings per share
("EPS"), replacing the presentation of primary EPS with a presentation of Basic
EPS. For entities with complex capital structures, the statement requires the
dual presentation of both Basic EPS and Diluted EPS on the face of the statement
of operations. Under this new standard, Basic EPS is computed based on the
weighted average number of shares actually outstanding during the year. Diluted
EPS includes the effect of potential dilution from the exercise of outstanding
dilutive stock options and warrants into common stock using the treasury stock
method. SFAS No. 128 is effective for financial statements issued for periods
ending after December 15, 1997, and early application is not permitted. The
adoption of this statement did not have a material effect on Unity's financial
position or on the results of its operations.
 
                                      F-34
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
         SELECTED NOTES TO FINANCIAL STATEMENTS (UNAUDITED) (CONTINUED)
 
4. RESTRICTED CASH AND INVESTMENTS
 
    Unity, pursuant to the terms of its initial public offering (the
"Offering"), placed $6,007,500 as of November 19, 1996, in a trust account which
was primarily invested in a short-term U.S. Government Security. These funds are
subject to release upon the earlier of (i) written notification by Unity of its
need for all or substantially all of the net proceeds for the purpose of
implementing or facilitating the implementation of a Business Combination or
(ii) the liquidation of Unity (See note 5).
 
5. PENDING ACQUISITION
 
    On May 6, 1998, Unity entered into a letter of intent to effectuate a
Business Combination ("Merger") with Worlds, Inc. ("Worlds"), a company engaged
in developing music-oriented content applications for its proprietary 3D
Internet technology for consumer markets, as well as developing select business
oriented applications. On June 25, 1998, Unity and Worlds entered into a
definitive Agreement and Plan of Merger and Reorganization (the "Merger
Agreement") to effectuate the Merger.
 
    On October 29, 1998, Unity's stockholders, at a special meeting convened to
consider whether to approve or reject the Merger contemplated by the Merger
Agreement, rejected the Merger.
 
    As a consequence of the rejection of the Worlds Merger by the Unity Public
Stockholders, Article SEVENTH, paragraph (c) of Unity's Certificate of
Incorporation would have required the liquidation and dissolution of Unity (the
"Liquidation") no later than January 11, 1999. Had such Liquidation taken place
on that date, the Unity Public Stockholders, collectively, would have received a
liquidating distribution representing their respective pro rata interest in a
trust fund established for their benefit upon the consummation of the IPO, which
currently approximates $6.6 million.
 
    On December 10, 1998, Unity entered into a letter of intent to effectuate a
Business Combination with GraphOn Corporation ("GraphOn"), a privately owned
developer and marketer of proprietary "thin client" software that enables a
diverse range of desktop computing devices ("desktops") to easily access and
utilize UNIX applications from an location, over both fast networks and slow
internet connections.
 
    Unity's Board of Directors has unanimously concluded that a Business
Combination with GraphOn would be in the best interests of both Unity and its
stockholders, including the Unity Public Stockholders. Consequently, Unity's
Board of Directors has sought and obtained an opinion from special Delaware
counsel to the effect that such Article SEVENTH, paragraph (c), which attempts
to waive Unity's statutory right to amend the Unity Certificate of
Incorporation, is contrary to Delaware law and cannot prevent Unity and its
stockholders from amending the Unity Certificate of Incorporation.
 
    Subject to its submission under the Securities Exchange Act of 1934, as
amended, of proxy solicitation material, Unity's Board of Directors intends to
seek the approval of the Unity Public Stockholders to (i) amend the Unity
Certificate of Incorporation to remove the provision therein that would have
required Unity to commence the Liquidation as a consequence of its inability to
consummate a Business Combination within the period defined by Article SEVENTH,
paragraph (c) of the Unity Certificate of Incorporation and, if such approval is
obtained, to (ii) consider and vote upon a proposal to approve Unity's Business
Combination with GraphOn. There can be no assurance that the Unity Stockholders
will approve the proposed amendment to the Certificate of Incorporation, or the
proposed Business Combination with GraphOn Corporation.
 
    The proposed amendment to the Unity Certificate of Incorporation will not
affect the right of any Unity Public Stockholder to convert his shares of Unity
Common Stock into cash, as provided in
 
                                      F-35
<PAGE>
                         UNITY FIRST ACQUISITION CORP.
                          (A DEVELOPMENT STAGE ENTITY)
 
         SELECTED NOTES TO FINANCIAL STATEMENTS (UNAUDITED) (CONTINUED)
 
5. PENDING ACQUISITION (CONTINUED)
Article SEVENTH of the Unity Certificate of Incorporation, should such Unity
Public Stockholder object to the GraphOn Business Combination and such Business
Combination is approved by a majority in equity interest of the Unity Public
Stockholders and thereafter consummated.
 
    Depending upon the voting of the Unity Public Stockholders as to the
amendment to the Unity Certificate of Incorporation or the Business Combination
with GraphOn, Unity may liquidate. The accompanying financial statements have
not been presented on a liquidation basis of accounting as Unity has not decided
to liquidate. Additionally, it is not expected that the carrying value of
Unity's assets and liabilities would be materially different if presented under
a liquidation basis based on the nature of such assets and liabilities.
 
                                      F-36
<PAGE>
                                                                       EXHIBIT A
 
                             EXCERPTS FROM RESTATED
                          CERTIFICATE OF INCORPORATION
                        OF UNITY FIRST ACQUISITION CORP.
 
    SEVENTH: The following paragraphs (a) through (d) shall apply during the
period commencing upon the consummation of the Corporation's initial public
offering of securities ("IPO") and terminating upon the consummation of any
"Business Combination." ["and may not be amended during such period]. A
"Business Combination" shall mean the acquisition by the Corporation, whether by
merger, exchange of capital stock, asset or stock acquisition or other similar
type of transaction, of any business ("Target Business").
 
        (a) Prior to the consummation of any Business Combination, the
    Corporation shall submit such Business Combination to its stockholders for
    approval regardless of whether the Business Combination is of a type which
    normally would require such stockholder approval under the DGCL. In the
    event that the holders of a majority of the outstanding Voting Stock vote
    for the approval of the Business Combination, the Corporation shall be
    authorized to consummate the Business Combination; provided that the
    Corporation shall not consummate any Business Combination if 20% or more in
    interest of the holders of the public shares (as hereafter defined) exercise
    their conversion rights described in paragraph (b) below.
 
        (b) In the event that a Business Combination is approved in accordance
    with the above paragraph (a) and is consummated by the Corporation, any
    holder of shares of common stock issued in the IPO ("public shares") who
    voted against the Business Combination may demand that the Corporation
    convert his public shares into cash. If so demanded, the Corporation shall
    convert such public shares at a per-share conversation price equal to the
    quotient determined by dividing (i) the amount in the Trust Fund (as defined
    below), inclusive of any interest thereon, as of the record date for
    determination of stockholders entitled to vote on the Business Combination,
    by (ii) the number of public shares. "Trust Fund" shall mean that trust
    account established by the Corporation at the consummation of its IPO and
    into which certain net proceeds of the IPO are deposited.
        (c) In the event that the Corporation does not consummate a Business
    Combination [by the later of (i) 18 months after the consummation of the IPO
    or (ii) 24 months after the consummation of the IPO in the event that an
    agreement for a Business Combination was executed but was not consummated
    within such 18 month period (the later of such dates being referred to as]
    WITH GRAPHON CORPORATION, A CALIFORNIA CORPORATION, BY JUNE 30, 1999 (the
    "Termination Date"), the officers of the Corporation shall take all such
    actions as may be necessary to dissolve and liquidate the Corporation within
    sixty days of the Termination Date. In the event that the Corporation is so
    dissolved and liquidated, liquidating distributions shall be made only with
    respect to the public shares and the Corporation shall pay no liquidating
    distributions with respect to any shares of common stock outstanding prior
    to the consummation of the IPO.
 
        (d) A holder of public shares shall be entitled to receive distributions
    from the Trust Fund only in the event of a liquidation of the Corporation or
    in the event he demands conversion of his shares in accordance with
    paragraph (b) above. In no other circumstances shall a holder of public
    shares have any right or interest of any kind in or to the Trust Fund.
 
    NINTH: The corporation reserves the right to amend, alter, change or repeal
any provision contained in this Certificate of Incorporation [(other than the
provisions of Article SEVENTH, which may not be amended prior to consummation of
a Business Combination)] in the manner now or hereafter prescribed by law, and
all rights and powers conferred herein on stockholders, directors and officers
are subject to this reserved power.
 
                                      A-1
<PAGE>
                                                                       EXHIBIT B
 
                              AGREEMENT AND PLAN OF MERGER AND REORGANIZATION,
                              dated as of February 1, 1999 (this "Agreement"),
                              between UNITY FIRST ACQUISITION CORP., a Delaware
                              corporation ("Unity"), and GRAPHON CORPORATION, a
                              California corporation (the "Company").
                            ------------------------
 
    The Boards of Directors of Unity and the Company have unanimously approved
the merger of the Company with and into Unity pursuant to this Agreement (the
"Merger") and the other transactions contemplated hereby upon the terms and
subject to the conditions set forth herein.
 
    It is intended that the Merger shall qualify for federal income tax purposes
as a reorganization within the meaning of Section 368(a) of the Internal Revenue
Code of 1986, as amended (the "Code").
 
    Unity and the Company desire to make certain representations, warranties,
covenants and agreements in connection with the Merger.
 
    NOW, THEREFORE, in consideration of the foregoing premises and the
representations, warranties, covenants and agreements contained herein, the
parties hereto, intending to be legally bound hereby, agree as follows:
 
                                   ARTICLE I
                                   THE MERGER
 
    SECTION 1.1  THE MERGER.  Upon the terms and subject to the conditions of
this Agreement, at the Effective Time (as defined in Section 1.2 below), the
Company shall be merged with and into Unity in accordance with the provisions of
Section 252 of the Delaware General Corporation Law (the "DGCL") and of Sections
1100 and 1108 of the California Corporation Code (the "CCC") with the effect
provided in Sections 259 thru 261 of the DGCL and Section 1107 of the CCC, and
the separate existence of the Company shall thereupon cease. Unity shall be the
surviving corporation in the Merger (hereinafter sometimes referred to as
"Surviving Corporation") and shall continue to be governed by the laws of the
State of Delaware. Without limiting the generality of the foregoing, and subject
thereto, at the Effective Time of the Merger, (a) all assets and property of
every description, and every interest therein, wherever located, and the rights,
privileges, immunities, powers, franchises and authority, of a public as well as
of a private nature, of each of Unity and the Company, shall become assets and
property of the Surviving Corporation and (b) all liabilities and obligations of
Unity and the Company shall be vested in, and become the liabilities and
obligations of, the Surviving Corporation without further act or deed.
 
    SECTION 1.2  EFFECTIVE TIME OF THE MERGER.  The Merger shall become
effective at such time (the "Effective Time") as (a) a Certificate of Merger, in
the form set forth as Exhibit I hereto, is filed with the Secretary of State of
the State of Delaware, and (b) an Agreement of Merger, in the form set forth as
Exhibit II hereto, is filed with the Secretary of State of the State of
California (collectively, the "Merger Filings"). Such filings shall be made
simultaneously with or as soon as practicable after the closing of the
transactions contemplated by this Agreement in accordance with Section 3.5.
 
    SECTION 1.3  NAME CHANGE.  At the Effective Time, Unity shall change its
name to "GraphOn Corporation."
 
    SECTION 1.4  DISCLOSURE SCHEDULES.  Simultaneously with the execution of
this Agreement, (a) the Company shall deliver a schedule relating to the Company
(the "Company Disclosure Schedule"), and (b) Unity shall deliver a schedule
relating to Unity (the "Unity Disclosure Schedule" and collectively, with the
Company Disclosure Schedule, the "Disclosure Schedules") setting forth the
matters required to be set forth in the Disclosure Schedules as described
elsewhere in this Agreement. The Disclosure Schedules shall be deemed to be part
of this Agreement.
 
                                      B-1
<PAGE>
                                   ARTICLE II
                             SURVIVING CORPORATION
 
    SECTION 2.1  CERTIFICATE OF INCORPORATION.  The Certificate of Incorporation
of Unity as in effect immediately prior to the Effective Time shall be the
Certificate of Incorporation of the Surviving Corporation after the Effective
Time, until duly amended in accordance with the terms thereof and of the DGCL.
 
    SECTION 2.2  BY-LAWS.  The By-laws of Unity as in effect immediately prior
to the Effective Time shall be the By-laws of the Surviving Corporation after
the Effective Time, and thereafter may be amended in accordance with their terms
and as provided by the Certificate of Incorporation of the Surviving Corporation
and the DGCL.
 
    SECTION 2.3  DIRECTORS.  The directors of the Company at the Effective Time,
together with one (1) designee of the directors of Unity occupying such
positions immediately prior to the Effective Time, shall be the directors of the
Surviving Corporation, from and after the Effective Time, until their respective
successors have been duly elected or appointed and qualified or until death,
resignation or removal in accordance with the Certificate of Incorporation and
By-laws, as applicable, of the Surviving Corporation. Except as provided for in
the immediately preceding sentence, all of the directors of Unity immediately
prior to the Effective Time shall each resign such position as of the Effective
Time.
 
    SECTION 2.4  OFFICERS.  The officers of the Company at the Effective Time
shall, from and after the Effective Time, be the officers of the Surviving
Corporation until their respective successors have been duly elected or
appointed and qualified or until death, resignation or removal in accordance
with the Certificate of Incorporation and By-Laws, as applicable, of the
Surviving Corporation. The officers of Unity immediately prior to the Effective
Time shall each resign such position as of the Effective Time.
 
                                  ARTICLE III
                              CONVERSION OF SHARES
 
    SECTION 3.1  CONVERSION OF COMPANY SHARES IN THE MERGER.  At the Effective
Time, by virtue of the Merger and without any action on the part of any holder
of any capital stock of the Company:
 
    (a) each share of Common Stock, without par value, of the Company ("Company
       Common Stock"), issued and outstanding at the Effective Time, subject to
       the terms and conditions of this Agreement, shall be converted (except as
       provided in Sections 3.1(b) and 3.4), without any further action, into
       the right to receive, and become exchangeable for, 0.5576 shares (the
       "Exchange Ratio") of Common Stock, $.0001 par value, of Unity ("Unity
       Common Stock"), subject to the payment of cash adjustments in lieu of the
       issuance of fractional shares as provided in Section 3.3 of this
       Agreement; provided, that if, prior to the Effective Time, Unity should
       split, reclassify or combine Unity Common Stock, or pay or grant to any
       stockholders of Unity a stock dividend or other stock distribution in
       Unity Common Stock or rights to acquire Unity Common Stock, or otherwise
       change Unity Common Stock into any other securities, then the Exchange
       Ratio will be appropriately adjusted to reflect such split,
       reclassification, combination, stock dividend or other distribution;
 
    (b) each share of Company Common Stock, if any, owned by Unity or any
       subsidiary of Unity or the Company immediately prior to the Effective
       Time shall be cancelled and shall cease to exist from and after the
       Effective Time; and
 
    (c) All options (the "Company Options") outstanding, whether or not
       exercisable and whether or not vested, at the Effective Time, and whether
       or not granted pursuant to the Company's 1998 Stock Option/Stock Issuance
       Plan (the "Company Stock Option Plan") shall remain outstanding following
       the Effective Time. At the Effective Time, the Company Options shall, by
       virtue of the
 
                                      B-2
<PAGE>
       Merger and without any further action on the part of the Company or the
       holders thereof, be assumed by Unity in such manner that Unity (i) is a
       corporation "assuming a stock option in a transaction to which Section
       424(a) applies" within the meaning of Section 424 of the Internal Revenue
       Code of 1986, as amended (the "Code"), or (ii) to the extent that Section
       424 of the Code does not apply to any such Company Options, would be such
       a corporation were Section 424 of the Code applicable to such Company
       Options. From and after the Effective Time, all references to the Company
       in the Company Stock Option Plan and the applicable stock option
       agreements issued thereunder shall be deemed to refer to Unity. Each
       Company Option assumed by Unity shall be exercisable upon the same terms
       and conditions as under the Company Stock Option Plan and the applicable
       stock option agreement issued thereunder, except that (A) each such
       Company Option shall be exercisable for that whole number of shares of
       Unity Common Stock (rounded down to the nearest whole share) into which
       the number of shares of Company Common Stock subject to such Company
       Option immediately prior to the Effective Time would be converted under
       Section 3.1 (a), and (B) the option price per share of Unity Common Stock
       shall be an amount equal to the option price per share of Company Common
       Stock subject to such Company Option in effect immediately prior to the
       Effective Time divided by the Exchange Ratio (the option price per share,
       as so determined, being rounded upward to the nearest full cent). No
       payment shall be made for fractional shares. Within 20 business days
       after the Effective Time, Unity will issue to each person who,
       immediately prior to the Effective Time was a holder of a Company Option,
       a document in form and substance reasonably satisfactory to the Company
       evidencing the foregoing assumption of such option by Unity.
 
    (d) All warrants issued by the Company to purchase shares of Company Common
       Stock (the "Company Warrants") outstanding, whether or not exercisable
       and whether or not vested, at the Effective Time shall remain outstanding
       following the Effective Time. At the Effective Time, the Company Warrants
       shall, by virtue of the Merger and without any further action on the part
       of the Company or the holders thereof, be assumed by Unity and each
       Company Warrant assumed by Unity shall be exercisable upon the same terms
       and conditions as under the applicable warrant agreements with respect to
       such Company Warrants, except that (A) each such Company Warrant shall be
       exercisable for that whole number of shares of Unity Common Stock (to the
       nearest whole share) into which the number of shares of Company Common
       Stock subject to such Company Warrant immediately prior to the Effective
       Time would be converted under Section 3.1 (a), and (B) the exercise price
       per share of Unity Common Stock shall be an amount equal to the exercise
       price per share of Company Common Stock subject to such Company Warrant
       in effect immediately prior to the Effective Time divided by the Exchange
       Ratio (the exercise price per share, as so determined, being rounded
       upward to the nearest full cent). From and after the Effective Time, all
       references to the Company in the respective warrant agreements shall be
       deemed to refer to Unity. No payment shall be made for fractional shares
       unless required by the respective terms of the Company Warrants.
 
    (e) All outstanding rights of the Company which it may hold immediately
       prior to the Effective Time to repurchase unvested shares of Company
       Common Stock (the "Repurchase Options") shall be assigned to Unity in the
       Merger and shall thereafter be exercisable by Unity upon the terms and
       conditions in effect immediately prior to the Effective Time, except that
       the shares purchasable pursuant to the Repurchase Options and the
       purchase price per shall be adjusted to reflect the Exchange Ratio.
 
    SECTION 3.2  EXCHANGE OF CERTIFICATES.
 
    (a) From and after the Effective Time, each holder of an outstanding
       certificate which immediately prior to the Effective Time represented
       shares of Company Common Stock (the "Company Certificates") shall cease
       to have any right as a stockholder of the Company and such holder's
 
                                      B-3
<PAGE>
       sole rights shall be to receive in exchange for such holder's Company
       Certificates, upon surrender thereof to an exchange agent selected by the
       Company (the "Exchange Agent"), a certificate or certificates
       representing the number of whole shares of Unity Common Stock which such
       holder is entitled to receive pursuant to Section 3.1 plus cash in lieu
       of fractional shares, as provided in Section 3.3 hereof. Notwithstanding
       any other provision of this Agreement, (i) until holders of Company
       Certificates theretofore representing shares of Company Common Stock have
       surrendered such certificates for exchange as provided herein, (A) no
       dividends shall be paid by the Company with respect to any shares
       represented by such Company Certificates and (B) no payment for
       fractional shares shall be made, provided, in each case, that upon
       surrender of such Company Certificates, the surrendering holder shall
       receive all such dividends and payments for fractional shares and (ii)
       without regard to when such Company Certificates are surrendered for
       exchange as provided herein, no interest shall be paid on any such
       dividend or payment for fractional shares. If any certificate for shares
       of Unity Common Stock is to be issued in a name other than that in which
       the certificate for shares of Company Common Stock surrendered in
       exchange therefor is registered, it shall be a condition of such exchange
       that the person requesting such exchange shall pay any transfer or other
       taxes required by reason of the issuance of certificates for such shares
       of Unity Common Stock in a name other than that of the registered holder
       of the certificate surrendered, or shall establish to the satisfaction of
       Unity that such tax has been paid or is not applicable. No transfers of
       Company Common Stock shall be made on the stock transfer books of the
       Company after the close of business on the day prior to the date of the
       Effective Time.
 
    (b) At or before the Effective Time, Unity shall make available to the
       Exchange Agent a sufficient number of certificates representing shares of
       Unity Common Stock required to effect the exchange referred to in Section
       3.2(a).
 
    (c) Promptly after the Effective Time, Unity shall cause the Exchange Agent
       to mail to each holder of record of the Company Certificates (i) a form
       letter of transmittal (which shall specify that delivery shall be
       effected, and risk of loss and title to the Company Certificates shall
       pass, only upon actual delivery of the Company Certificates to the
       Exchange Agent) and (ii) instructions for use in effecting the surrender
       of the Company Certificates in exchange for certificates representing
       shares of Unity Common Stock. Upon surrender of the Company Certificates
       for cancellation to the Exchange Agent, together with a duly executed
       letter of transmittal and such other documents as the Exchange Agent
       shall reasonably require, the holder of such Company Certificates shall
       be entitled to receive in exchange therefor one or more certificates
       representing that number of whole shares of Unity Common Stock into which
       the shares of Company Common Stock theretofore represented by the Company
       Certificates so surrendered shall have been converted pursuant to the
       provisions of Section 3.1, in addition to payment for any fractional
       share of Unity Common Stock, and the Company Certificates so surrendered
       shall forthwith be cancelled. Until so surrendered, the Company
       Certificates shall represent solely the right to receive the number of
       whole shares of Unity Common Stock that shall be issued in exchange for
       Company Common Stock and any cash in lieu of the fractional Unity Common
       Stock as contemplated by Section 3.3. Notwithstanding the foregoing,
       neither the Exchange Agent nor any party hereto shall be liable to a
       holder of shares of Company Common Stock for any shares of Unity Common
       Stock delivered to a public official as required by applicable abandoned
       property, escheat or similar laws. The Exchange Agent shall not be
       entitled to vote or exercise any rights of ownership with respect to
       Unity Common Stock held by it from time to time hereunder.
 
    SECTION 3.3  NO FRACTIONAL SHARES.  Notwithstanding any other provision of
this Agreement, no certificates or scrip for fractional shares of Unity Common
Stock shall be issued in the Merger and no Unity Common Stock dividend,
reclassification, stock split or interest shall be paid or have effect with
 
                                      B-4
<PAGE>
respect to any fractional interest in a share of Unity Common Stock, and such
fractional interests shall not entitle the owner thereof to vote or to any other
rights of a security holder. In lieu of any such fractional shares, each holder
of Company Common Stock who would otherwise have been entitled to receive a
fraction of a share of Unity Common Stock upon surrender of Company Certificates
for exchange pursuant to this Article III will be paid an amount in cash
therefor (without interest) equal to the average of the last reported sale
prices of Unity Common Stock on the Electronic Bulletin Board (the "Bulletin
Board") for each of the twenty consecutive trading days ending with the third
trading day prior to the Closing Date (as defined in Section 3.5) multiplied by
the fractional interest of such stockholder in a share of Unity Common Stock.
For purposes of determining whether and to what extent a particular stockholder
is entitled to receive cash adjustments pursuant to this Section 3.3, shares of
record held by such holder and represented by two or more Company Certificates
shall be aggregated.
 
    SECTION 3.4  DISSENTING SHARES.  Notwithstanding any provision of this
Agreement to the contrary, shares of Company Common Stock that are outstanding
immediately prior to the Effective Time and which are held by stockholders of
the Company who shall not have voted in favor of the Merger or consented thereto
in writing and who shall have demanded properly in writing the fair value for
such shares of Company Common Stock in accordance with Sections 1300-1312 of the
CCC (collectively, "Dissenting Stock") shall not be converted into or represent
the right to receive shares of Unity Common Stock. Such stockholders shall be
entitled to receive payment of the fair value of such shares of Dissenting Stock
held by them in accordance with the provisions of such Sections 1300-1312,
except that all Dissenting Stock held by stockholders who have failed to perfect
or who effectively shall have withdrawn or lost their rights to appraisal of
such shares of Dissenting Stock under such Sections 1300-1312 shall thereupon be
deemed to have been converted into and to have become exchangeable for, as of
the Effective Time, the right to receive shares of Unity Common Stock, without
any interest thereon, upon surrender, in the manner provided in Section 3.2, of
the Company Certificates that evidence such shares of Dissenting Stock.
 
    SECTION 3.5  CLOSING.  The closing (the "Closing") of the transactions
contemplated by this Agreement shall take place at the offices of Brobeck,
Phleger & Harrison LLP, Two Embarcadero Place, 2200 Geng Road, Palo Alto,
California 94303, on the third business day following the date on which the last
of the conditions set forth in Article VII hereof is fulfilled or waived, or at
such other time and place as Unity and the Company shall agree (the date on
which the closing occurs being the "Closing Date").
 
                                      B-5
<PAGE>
                                   ARTICLE IV
 
                         REPRESENTATIONS AND WARRANTIES
                                 OF THE COMPANY
 
    The Company hereby represents and warrants to Unity as follows (subject in
each case to such exceptions as are set forth or cross-referenced in the
attached Company Disclosure Schedule in the labeled section corresponding to the
caption of the representation or warranty to which such exceptions relate;
provided, however, that each exception shall be deemed to apply to any
representation of the Company to which it might reasonably apply):
 
    SECTION 4.1  ORGANIZATION AND QUALIFICATION.  The Company is a corporation
duly incorporated, validly existing and in good standing under the laws of the
State of California. The Company has all requisite corporate power to carry on
its business as it is now being conducted and is duly qualified to do business
as a foreign corporation and is in good standing in all jurisdictions as set
forth in Section 4.1 of the Company Disclosure Schedule, and to the Company's
knowledge, such jurisdictions are the only ones in which the properties owned,
leased or operated by the Company or the nature of the business conducted by the
Company makes such qualification necessary, except where the failure to qualify
(individually or in the aggregate) will not have any Material Adverse Effect on
the Company. The term "Material Adverse Effect" means, with respect to the
Company or Unity (as applicable), a material adverse effect on the business,
operations, properties, assets, condition (financial or otherwise) or results of
operations of it and its subsidiaries taken as a whole, or on its ability to
consummate the transactions contemplated hereby except (i) any effect arising
from this Agreement or the transactions contemplated hereby, (ii) any effect
applicable generally to the industries in which the Company operates and (iii)
general economic or financial effects. The copies of the Certificate of
Incorporation and By-laws of the Company, as amended to date and delivered to
Unity, are true and complete copies of these documents as now in effect. The
minute books of the Company are accurate in all material respects.
 
SECTION 4.2 CAPITALIZATION.
 
    (a) The authorized capital stock of the Company as of the date hereof (the
"Company's Baseline Capitalization") consists solely of (x) 5,000,000 shares of
Preferred Stock, without par value, of which no shares are issued and
outstanding, and (y) 50,000,000 shares of Company Common Stock, of which
16,256,049 shares are issued and outstanding. All of such shares of Company
Common Stock that are issued and outstanding are duly authorized, validly issued
and outstanding, fully paid and non-assessable and, to the knowledge of the
Company and except as set forth in the Company Disclosure Schedule, were not
issued in violation of the preemptive rights of any person. The term
"knowledge", when expressed herein on behalf of the Company or Unity (as
applicable), means actual knowledge of their respective executive officers.
 
    (b) As of the date hereof, there are also 1,591,224 shares of Company Common
Stock ("Company Contingent Stock") which are reserved for issuance upon
exercises of issued and outstanding options and warrants (collectively, the
"Company Derivatives"), each as more fully set forth in the Company Disclosure
Schedule.
 
    (c) The Company has entered into that certain Private Placement Memorandum,
dated September 2, 1998 (with any supplement thereto, the "Private Placement
Memorandum"), with Spencer Trask Securities Incorporated (the "Placement Agent")
regarding the issuance and sale of units, each consisting of 100,000 shares of
Common Stock. Other than (i) the Company Contingent Stock, (ii) the requirement
that the Placement Agent and Corel Corporation, a corporation incorporated under
the laws of Canada, Corel Corporation Limited, a corporation incorporated under
the laws of the Republic of Ireland, and Corel, Inc., a corporation incorporated
under the laws of the State of Delaware (collectively, "Corel"), consent to the
sale by the Company of any securities or any rights to acquire any securities of
the Company
 
                                      B-6
<PAGE>
(except pursuant to options, warrants, rights or option plans described in the
Private Placement Memorandum) at a price less than $1.00 per share, (iii) the
rights granted to each investor pursuant to the Private Placement Memorandum and
to Corel to purchase pro rata portions of any securities offered by the Company
prior to the issuance of such securities and until such time as there is the
Initial Public Offering, (iv) the obligation of the Company to issue to Corel
and, the Company anticipates, to an additional shareholder of the Company
approximately 1,612,017 shares of Common Stock, on June 30, 2000 and for no
additional consideration, in the event the Company has not consummated the
Initial Public Offering as of such date and (v) as described in this Agreement,
there are no options, warrants, conversion privileges, subscription or purchase
rights or other rights presently outstanding to purchase or otherwise acquire
(x) any authorized but unissued, unauthorized or treasury shares of the
Company's capital stock, (y) any Company Contingent Stock or (z) other
securities of the Company.
 
    SECTION 4.3  SUBSIDIARIES.  The Company has no Subsidiaries. The term
"Subsidiary" shall mean any corporation or other entity of which the Company or
Unity (as applicable), directly or indirectly, controls or which the Company or
Unity (as applicable) owns, directly or indirectly, 50% or more of the stock or
other voting interests, the holders of which are, ordinarily or generally, in
the absence of contingencies (which contingencies have not occurred) or
understandings (which understandings have not yet been required to be performed)
entitled to vote for the election of a majority of the board of directors or any
similar governing body. Except as set forth in the Company Disclosure Schedule,
the Company does not own any capital stock in any other corporation or similar
business entity nor is the Company a partner in any partnership or joint
venture.
 
SECTION 4.4 AUTHORITY; NON-CONTRAVENTION; APPROVALS.
 
    (a) The Company has full corporate power and authority to enter into this
Agreement and, subject to the Company Stockholders' Approval (as defined in
Section 7.3 below), and the Required Statutory Approvals (as defined in Section
4.4(c) below), to consummate the transactions contemplated hereby. The Company's
execution and delivery of this Agreement, and its consummation of the
transactions contemplated hereby, have been duly authorized by its Board of
Directors and no other corporate proceedings on its part are necessary to
authorize its execution and delivery of this Agreement and its consummation of
the transactions contemplated hereby, except for the Company Stockholders'
Approval and the obtaining of the Required Statutory Approvals. This Agreement
has been duly and validly executed and delivered by the Company, and constitutes
its valid and binding agreement, enforceable against it in accordance with its
terms, except that such enforcement may be subject to (i) bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting or
relating to enforcement of creditors' rights generally and (ii) general
equitable principles ((i) and (ii) the "Enforceability Exception").
 
    (b) The Company's execution and delivery of this Agreement does not, and its
consummation of the transactions contemplated hereby will not, violate, conflict
with or result in a breach of any provision of, or constitute a default (or an
event which, with notice or lapse of time or both, would constitute a default)
under, or result in the termination of, or accelerate the performance required
by, or result in a right of termination or acceleration under, or result in the
creation of any lien, security interest, charge or encumbrance upon any of its
properties or assets under any of the terms, conditions or provisions of (i) its
Certificate of Incorporation or By-Laws, (ii) subject to obtaining the Required
Statutory Approvals and the receipt of the Company Stockholders' Approval and
the Unity Stockholders' Approval (as defined in Section 7.3 below), any statute,
law, ordinance, rule, regulation, judgment, decree, order, injunction, writ,
permit or license of any court or governmental authority applicable to it or any
of its properties or assets, or (iii) any note, bond, mortgage, indenture, deed
of trust, license, franchise, permit, concession, contract, lease or other
instrument, obligation or agreement of any kind to which it is now a party or by
which it or any of its properties or assets may be bound, excluding from the
foregoing clauses (ii) and (iii), such violations, conflicts, breaches,
defaults, terminations, accelerations or creations of liens, security interests,
charges or encumbrances that do not, in the aggregate, have a Material Adverse
Effect on the Company.
 
                                      B-7
<PAGE>
    (c) Except for (i) the filing of the Proxy Statement/ Prospectus (as defined
in Section 4.13 below) with the Securities and Exchange Commission (the "SEC")
pursuant to the Securities Act of 1933, as amended (the "Securities Act"), and
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), (ii) the
declaration of the effectiveness thereof by the SEC and the qualification
thereof under state securities or blue sky laws, (iii) the filing with the
California Corporations Commissioner of an Application for Qualification of the
Unity Common Stock under Section 25120 of the CCC, and (iv) the making of the
Merger Filings (as defined in Section 1.2) with the Secretary of State of the
State of Delaware, the Recorder of the County of New Castle, Delaware, and the
Secretary of State of the State of California in connection with the Merger,
(the filings and approvals referred to in clauses (i) through (iv) above are
collectively referred to as the "Required Statutory Approvals"), no declaration,
filing or registration with, or notice to, or authorization, consent or approval
of, any governmental or regulatory body or authority is necessary for the
Company's execution and delivery of this Agreement or its consummation of the
transactions contemplated hereby, other than such declarations, filings,
registrations, notices, authorizations, consents or approvals which, if not made
or obtained, as the case may be, would not, in the aggregate, have a Material
Adverse Effect on the Company.
 
SECTION 4.5  CONTRACTS; NO DEFAULT.
 
    (a) Section 4.5(a) of the Company Disclosure Schedule consists of a true and
complete list of all contracts, agreements, commitments and other instruments
(whether oral or written) to which the Company is a party (other than standard
Company purchase orders) that (i) involve a receipt or an expenditure by the
Company or require the performance of services or delivery of goods to, by,
through, on behalf of or for the benefit of the Company, which in each case,
relates to a contract, agreement, commitment or instrument that either (A)
requires payments in excess of $100,000 per year and receipts in excess of
$100,000 per year or (B) is not terminable by the Company on notice of thirty
(30) days or less without penalty or the Company being liable for damages of
$100,000 or more, or (ii) involve an obligation for the performance of services
or delivery of goods by the Company that cannot, or in reasonable probability
will not, be performed within one year from the date hereof.
 
    (b) All of the contracts, agreements, commitments and other instruments
described in Section 4.5(a) of the Company Disclosure Schedule (individually, a
"Contract" and collectively, the "Contracts") are valid and binding upon the
Company, and to the knowledge of the Company, the other parties thereto, and are
in full force and effect and enforceable in accordance with their terms, subject
to the Enforceability Exception, and neither the Company, nor to the knowledge
of the Company, any other party to any Contract, has materially breached any
provision of, nor has any event occurred which, with the lapse of time or action
by a third party, could result in a material default under, the terms thereof.
To the knowledge of the Company, no stockholder of the Company has received any
payment in violation of law from any contracting party in connection with or as
an inducement for causing the Company to enter into any Contract.
 
    SECTION 4.6 LITIGATION.  Except as set forth in Schedule 4.6 of the Company
Disclosure Schedule, there is no (i) claim, action, suit or proceeding pending
or, to the Company's knowledge, threatened against or directly relating to the
Company before any court or governmental or regulatory authority or body or
arbitration tribunal, or (ii) outstanding judgment, order, writ, injunction or
decree, or application, request or motion therefor, of any court, governmental
agency or arbitration tribunal in a proceeding to which the Company or any of
its assets was or is a party except, in the case of clauses (i) and (ii) above,
such as would not, individually or in the aggregate, have a Material Adverse
Effect on the Company.
 
    SECTION 4.7 TAXES.  The Company has duly filed with the appropriate
governmental agencies all material franchise, income and all other material Tax
(as hereinafter defined) returns and reports (Tax returns and reports are
hereinafter collectively referred to as "Tax Returns") other than Tax Returns
which the failure to file would have no Material Adverse Effect on the Company.
All such Tax Returns were, when filed, and to the Company's knowledge are,
accurate and complete in all material respects and were
 
                                      B-8
<PAGE>
prepared in conformity with applicable laws and regulations. The Company has
paid or will pay in full or has adequately reserved against all Taxes otherwise
assessed against it through the Closing Date. The Company is not a party to any
pending action or proceeding by any governmental authority for the assessment of
any Tax, and to the Company's knowledge, no claim for assessment or collection
of any Tax has been asserted in writing against the Company that has not been
paid. There are no Tax liens upon the assets of the Company (other than liens
for taxes not yet due and payable). There is no valid basis, to the Company's
knowledge, for any assessment, deficiency, notice, 30-day letter or similar
intention to assess any Tax to be issued to the Company by any governmental
authority. "Tax" or "Taxes" shall mean all federal, state, local and foreign
taxes, duties, levies, charges and assessments of any nature, including social
security payments and withholdings relating to wages, salaries and benefits and
payments to subcontractors (to the extent required under applicable Tax law),
and also including all interest, penalties and additions imposed with respect to
such amounts.
 
SECTION 4.8  EMPLOYEE BENEFIT PLANS; ERISA.
 
    (a) Except as set forth in or pursuant to the plans, programs, practices and
arrangements listed in the Company Disclosure Schedule, the Company does not
maintain or contribute to any employee benefit plans, programs, arrangements and
practices (such plans, programs, arrangements and practices of the Company being
hereinafter collectively referred to as the "Company Plans"), including employee
benefit plans within the meaning set forth in Section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended, and all regulations
promulgated thereunder, as in effect from time to time ("ERISA"), or any written
employment contracts providing for an annual base salary in excess of $100,000
and having a term in excess of one year, which contracts are not immediately
terminable without penalty or further liability, or other similar arrangements
for the provision of benefits (excluding any "Multi-employer Plan" within the
meaning of Section 3(37) of ERISA, and all regulations promulgated thereunder,
as in effect from time to time). The Company Disclosure Schedule lists all
Multi-employer Plans which the Company maintains or to which it makes
contributions. The Company has no obligation to create any additional such plan
or to amend any such plan so as to increase benefits thereunder, except as
required under the terms of the Company Plans, under existing collective
bargaining agreements or to comply with applicable law.
 
    (b) (i) There have been no prohibited transactions within the meaning of
Section 406 and 407 of ERISA or Section 4975 of the Code with respect to any of
the Company Plans that could result in penalties, taxes or liabilities which,
singly or in the aggregate, could have a Material Adverse Effect on the Company,
(ii) except for premiums due, there is no outstanding liability in excess of
$10,000 whether measured alone or in the aggregate, under Title IV of ERISA with
respect to any of the Company Plans, (iii) neither the Pension Benefit Guaranty
Corporation nor any plan administrator has instituted proceedings to terminate
any of the Company Plans subject to Title IV of ERISA other than in a "standard
termination" described in Section 4041(b) of ERISA, (iv) none of the Company
Plans has incurred any "accumulated funding deficiency" (as defined in Section
302 of ERISA and Section 412 of the Code), whether or not waived, as of the last
day of the most recent fiscal year of each of the Company Plans ended prior to
the date of this Agreement, (v) based upon reasonable actuarial assumptions
currently utilized for such Company Plan, the current present value of all
projected benefit obligations under each of the Company Plans which is subject
to Title IV of ERISA did not, as of its latest valuation date, exceed the then
current value of the assets of such plan allocable to such benefit liabilities
by more than the amount, if any, disclosed in the Company Financial Statements
(as defined in Section 4.16), (vi) each of the Company Plans has been operated
and administered in all material respects in accordance with applicable laws
during the period of time covered by the applicable statute of limitations,
(vii) each of the Company Plans which is intended to be "qualified" within the
meaning of Section 401(a) of the Code has been determined by the Internal
Revenue Service to be so qualified and such determination has not been modified,
revoked or limited by failure to satisfy any condition thereof or by a
subsequent amendment thereto or a failure to amend, except that it may be
necessary to make additional amendments retroactively to maintain the qualified
status of such Company Plans, and the period for making any such necessary
retroactive
 
                                      B-9
<PAGE>
amendments has not expired, (viii) with respect to Multi-employer Plans, the
Company has not made or suffered a "complete withdrawal" or a "partial
withdrawal," as such terms are respectively defined in Sections 4203, 4204 and
4205 of ERISA and, to the knowledge of the Company, no event has occurred or is
expected to occur which presents a material risk of a complete or partial
withdrawal under said Sections 4203, 4204 and 4205, (ix) there are no pending
or, to the knowledge of the Company, threatened or anticipated claims involving
any of the Company Plans other than claims for benefits in the ordinary course,
and (x) the Company has no current liability in excess of $50,000, whether
measured alone or in the aggregate, for plan termination or withdrawal (complete
or partial) under Title IV of ERISA based on any plan to which any entity that
would be deemed one employer with the Company under Section 4001 of ERISA or
Section 414 of the Code contributed during the period of time covered by the
applicable statute of limitations (the "Company Controlled Group Plans"), and
the Company does not anticipate that any such liability will be asserted against
the Company, none of the Company Controlled Group Plans has an "accumulated
funding deficiency" (as defined in Section 302 of ERISA and 412 of the Code),
and no Company Controlled Group Plan has an outstanding funding waiver which
could result in the imposition of liens, excise taxes or liability against the
Company or any Company Subsidiary in excess of $10,000 whether measured
individually or in the aggregate, and (xi) none of the Company Plans provides
welfare benefits to employees and/or their dependents subsequent to termination
of employment except as require by Title I, Part 6 of ERISA or applicable state
insurance laws.
 
    SECTION 4.9 NO VIOLATION OF LAW.  The Company is not in violation of and has
not been given notice or been charged with any violation of, any law, statute,
order, rule, regulation, ordinance or judgment (including, without limitation,
any applicable environmental law, ordinance or regulation) of any governmental
or regulatory body or authority, except for violations which, in the aggregate,
do not have, and would not reasonably be expected to have, a Material Adverse
Effect on the Company. The Company has not received any written notice that any
investigation or review with respect to it by any governmental or regulatory
body or authority is pending or threatened, other than, in each case, those the
outcome of which, as far as reasonably can be foreseen, would not reasonably be
expected to have a Material Adverse Effect on the Company. The Company has all
permits, licenses, franchises, variances, exemptions, orders and other
governmental authorizations, consents and approvals necessary to conduct its
business as presently conducted, except for those, the absence of which, singly
or in the aggregate, would not have a Material Adverse Effect on the Company
(collectively, "Permits"). The Company has duly and timely filed all reports and
other information required to be filed with any governmental or regulatory
authority in connection with its Permits, and is not in violation of the terms
of any of its Permits, except for such omissions or delays in filings, reports
or violations which, in the aggregate, would not have a Material Adverse Effect
on the Company.
 
    SECTION 4.10 INSURANCE.  The Company is covered by insurance policies, or
renewals thereof, as identified and described in Section 4.10 of the Company
Disclosure Schedule. The Company has not received notice from any insurer or
agent of such insurer that material improvements or expenditures will have to be
made in order to continue such insurance and, to the knowledge of the Company,
no such improvements or expenditures are required (other than premium payments)
except for any of the foregoing that would not have a Material Adverse Effect on
the Company.
 
    SECTION 4.11 PROPERTIES.  Except as provided herein, the Company has good
and marketable title to all of the assets and properties which it purports to
own as reflected on the most recent balance sheet comprising a portion of the
Company Financial Statements (as defined in Section 4.16), or thereafter
acquired (except assets and properties sold or otherwise disposed of since the
date of such balance sheet in the ordinary course of business). The Company has
a valid leasehold interest in all properties of which it is the lessee and each
such lease is valid, binding and enforceable against the Company, and, to the
knowledge of the Company, the other parties thereto in accordance with its
terms, subject to the Enforceability Exception. Neither the Company nor, to the
Company's knowledge, the other parties thereto are in default in the performance
of any material provision thereunder. Neither the whole nor any
 
                                      B-10
<PAGE>
material portion of the assets of the Company is subject to any governmental
decree or order to be sold or is being condemned, expropriated or otherwise
taken by any public authority with or without payment of compensation therefor,
nor, to the Company's knowledge, has any such condemnation, expropriation or
taking been proposed. None of the material assets of the Company is subject to
any restriction which would have a Material Adverse Effect on the Company.
 
    SECTION 4.12 CONDITION OF ASSETS.  The material equipment, fixtures and
other personal property of the Company are in good operating condition and
repair (ordinary wear and tear excepted) for the conduct of its business as
presently being conducted, except where the failure to be in such condition or
repair would not have a Material Adverse Effect on the Company.
 
    SECTION 4.13 REGISTRATION STATEMENT AND PROXY STATEMENT.  None of the
information to be supplied by the Company for inclusion in (a) the Registration
Statement on Form S-4 to be filed under the Securities Act with the SEC by Unity
in connection with the Merger for the purpose of registering the shares of Unity
Common Stock to be issued in the Merger (the "Registration Statement") or (b)
the proxy statement to be distributed in connection with the respective meetings
of the stockholders of the Company and Unity to vote upon this Agreement and the
transactions contemplated hereby (the "Proxy Statement" and, together with the
prospectus included in the Registration Statement, the "Joint Proxy Statement/
Prospectus") will, in the case of the Joint Proxy Statement/Prospectus or any
amendments thereof or supplements thereto, at the time of the mailing of the
Joint Proxy Statement/Prospectus and any amendments or supplements thereto, and
at the time of the meeting of the stockholders of Unity to be held in connection
with the transactions contemplated by this Agreement, or, in the case of the
Registration Statement, as amended or supplemented, at the time it becomes
effective and at the time of such meetings, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading, except that the Company
makes no representation or warranty as to information supplied for inclusion
therein by or on behalf of Unity.
 
    SECTION 4.14 LABOR MATTERS.  The Company is not a party to any union
contract or other collective bargaining agreement. The Company is in compliance
in all material respects with all applicable laws respecting employment and
employment practices, terms and conditions of employment and wages and hours,
and the Company is not engaged in any unfair labor practice. There is no labor
strike, slowdown or stoppage pending (or, to the knowledge of the Company, any
labor strike or stoppage threatened) against or affecting the Company. No
petition for certification has been filed and is pending before the National
Labor Relations Board with respect to any employees of the Company who are not
currently organized.
 
    SECTION 4.15 EMPLOYEES.  Each employee of the Company with access to
proprietary information regarding the Company has entered into a
confidentiality/assignment of inventions agreement with the Company. To the
Company's knowledge, no key employee or group of employees has any plans to
terminate employment with the Company.
 
    SECTION 4.16 FINANCIAL STATEMENTS.  The Company Disclosure Schedule contains
or will contain an unaudited interim balance sheet as of September 30, 1998 and
related unaudited interim statements of income, cash flows and stockholders'
equity of the Company for the nine months ended September 30, 1998 and an
audited balance sheet as of December 31, 1997 and related audited statements of
income, cash flows and stockholders' equity of the Company for the year ended
December 31, 1997 (collectively, the "Company Financial Statements"). The
Company Financial Statements present fairly, in all material respects, the
financial position and results of operations of the Company as of the dates,
period and year indicated, prepared in accordance with generally accepted
accounting principles consistently applied ("GAAP"), and in accordance with
Regulation S-X, promulgated by the SEC ("Regulation S-X"), and, in particular,
Rules 1-02 and 3-05 thereunder (subject, in the case of the unaudited financial
statements for the nine months ended September 30, 1998, to normal year-end
adjustments and the absence of footnotes. Without limiting the generality of the
foregoing, (i) as of the date of the most recent balance sheet
 
                                      B-11
<PAGE>
comprising a portion of the Company Financial Statements, there was no material
debt, liability or obligation of any nature not reflected or reserved against in
the Company Financial Statements or in the notes thereto required to be so
reflected or reserved in accordance with GAAP, and (ii) there are no assets of
the Company, the value of which (in the reasonable judgment of the Company) is
materially overstated in the Company Financial Statements. Except as disclosed
therein or in Section 4.16 of the Company Disclosure Schedule or as incurred in
the ordinary course of business since September 30, 1998, the Company has no
known material contingent liabilities (including liabilities for Taxes) other
than as contemplated hereunder or in connection herewith. The Company is not a
party to any contract or agreement for the forward purchase or sale of any
foreign currency and has not invested in any "derivatives."
 
    SECTION 4.17 ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as set forth in
Section 4.17 of the Company Disclosure Schedule or in connection with this
Agreement and the transactions contemplated hereby, since September 30, 1998
there has not been:
 
    (a) any material adverse change in the financial condition, operations,
properties, assets, liabilities or business of the Company;
 
    (b) any material damage, destruction or loss of any material properties of
the Company, whether or not covered by insurance, which would have a Material
Adverse Effect on the Company;
 
    (c) any material change in the manner in which the business of the Company
has been conducted, which would have a Material Adverse Effect on the Company;
 
    (d) any material change in the treatment and protection of trade secrets or
other confidential information of the Company, which would have a Material
Adverse Effect on the Company; and
 
    (e) any occurrence not included in paragraphs (a) through (d) of this
Section 4.17 which has resulted, or which the Company has reason to believe,
could reasonably be expected to result, in a Material Adverse Effect on the
Company.
 
    SECTION 4.18 INTELLECTUAL PROPERTY; SOFTWARE.  (a) Section 4.18(a) of the
Company Disclosure Schedule sets forth a complete and correct list in all
material respects of all patents, trademarks, tradenames, service marks, service
names, brand names and copyright registrations, and applications therefor,
applicable to or used in the business of the Company, together with a complete
list of all licenses granted by or to the Company with respect to any of the
above (collectively, "Company Intellectual Property"). To the Company's
knowledge, all Company Intellectual Property is owned by the Company, free and
clear of all liens, claims, security interests and encumbrances of any nature
whatsoever, except where the failure to own or use such Company Intellectual
Property would not have a Material Adverse Effect on the Company, or is used by
the Company pursuant to valid licenses. To the Company's knowledge, the Company
is not currently in receipt of any notice of any violation or infringement of,
and the Company is not knowingly violating or infringing in any material
respect, the rights of others in, or to any patent, unpatented invention,
trademark, tradename, service mark, copyright, trade secret, know-how, design,
process or other intangible asset.
 
    (b) (i) Except as set forth on Schedule 4.18(b)(i) of the Company Disclosure
Schedule, the Company has title to all material computer software owned by the
Company (other than "off-the-shelf" software not customized for its use ("Owned
Software")) free and clear of all liens, claims, security interests and
encumbrances whatsoever. Except as set forth in Section 4.18(b)(i) or (ii) of
the Company Disclosure Schedule, the Owned Software is not dependent on any
Licensed Software (as defined in subsection (ii) below) in order to operate
fully in the manner in which it is intended. The source code of any Owned
Software has not been published or knowingly disclosed to any other parties,
except pursuant to contracts requiring such other parties to keep the source
code of any Owned Software confidential.
 
                                      B-12
<PAGE>
    (ii) Section 4.18(b)(ii) of the Company Disclosure Schedule sets forth a
list of the agreements which require the payment of license fees, rents,
royalties or other charges by the Company with respect to all material software
(other than "off-the-shelf" software that has not been customized for its use)
under which the Company is a licensee, lessee or otherwise has obtained the
right to use (the "Licensed Software"). The Company, as applicable, has the
right and license to use, sublicense, modify and copy Licensed Software, free
and clear of any limitations or encumbrances, except as may be set forth in
Section 4.18(b)(ii) of the Company Disclosure Schedule or in the agreements
referenced therein. The Company is in material compliance with all provisions of
each license, lease or other similar agreement pursuant to which it has rights
to use the Licensed Software. Except as disclosed on Section 4.18(b)(ii) of the
Company Disclosure Schedule, none of the Licensed Software has been incorporated
into or made a part of any Owned Software or any other Licensed Software. The
Company has not published or knowingly disclosed any Licensed Software to any
other party except, in the case of Licensed Software which the Company leases or
markets to others, in accordance with and as permitted by any license, lease or
similar agreement relating to the Licensed Software and except pursuant to
contracts requiring such other parties to keep the Licensed Software
confidential. As of the date hereof, to the Company's knowledge, no party to
whom the Company has disclosed Licensed Software has breached such obligation of
confidentiality.
 
    (iii) The Owned Software and Licensed Software constitute all software used
in the business of the Company (collectively, the "Company Software"). The
transactions contemplated herein will not cause a breach or default under any
license, lease or similar agreement relating to the Company Software or impair
the ability of Unity and the Company to use the Company Software subsequent to
the Effective Time in the same manner as the Company Software is currently used
by the Company. The Company is not knowingly infringing in any material respect
any intellectual property rights of any other person or entity with respect to
the Company Software, and, except as set forth in Section 4.18(b)(iii) of the
Company Disclosure Schedule, to the Company's knowledge, no other person or
entity is infringing any intellectual property rights of the Company with
respect to the Company Software.
 
SECTION 4.19  YEAR 2000 ISSUE; FUNCTIONAL COMPLIANCE.
 
    (a) The Company has reviewed the effect of the Year 2000 Issue on the
Company Software, as well as those hardware and firmware systems and equipment
containing embedded microchips owned or operated by the Company or used or
relied upon in the conduct of its business (including systems and equipment
supplied by others or with which such computer systems of the Company
interface). The costs to the Company of any reprogramming required as a result
of the Year 2000 Issue to permit the proper functioning of such systems and
equipment and the proper processing of data, and the testing of such
reprogramming, are not reasonably expected to have a Material Adverse Effect on
the Company. The term "Year 2000 Issue" shall mean the failure of computer
software, hardware and firmware systems and equipment containing embedded
computer chips to properly receive, transmit, process, manipulate, store,
retrieve, re-transmit or in any other way utilize data and information due to
the occurrence of the year 2000 or the inclusion of dates on or after January 1,
2000.
 
    (b) To the Company's knowledge, the Company's product offerings, whether
sold within the last two (2) years, currently in inventory or hereafter
produced, based on the Owned Software and, to the Company's knowledge, on the
Licensed Software, will maintain full functionality and performance consistent
with specifications and contract requirements, and will operate without material
error before, during and after January 1, 2000, including, but not limited to,
accepting data input, providing data output, storing and manipulating data,
providing calculations, recognizing the year 2000 as a leap year, and the years
thereafter as occurring subsequent to the year 2000 and, to the Company's
knowledge, interfacing with products supplied by others, except to the extent
that such other products are not Year 2000 compliant.
 
                                      B-13
<PAGE>
    SECTION 4.20 BUSINESS LOCATIONS.  The Company owns or leases no real
property in any state or country except as set forth in Section 4.20 of the
Company Disclosure Schedule. The Company has no executive offices or places of
business except as otherwise set forth on the Company Disclosure Schedule.
 
    SECTION 4.21 COMPENSATION OF DIRECTORS, OFFICERS AND EMPLOYEES.  There is
set forth in Section 4.21 of the Company Disclosure Schedule a true and complete
list showing (a) the names of all directors and officers of the Company; (b) the
names of all salaried persons whose aggregate compensation for purposes of tax
reporting from the Company in the fiscal year ended December 31, 1998 was, or in
the year ending December 31, 1999 is expected to be $100,000 or more per year;
and (c) the names and titles of all salespersons whose aggregate compensation
for purposes of tax reporting from the Company in the fiscal year ended December
31, 1998 was, or in the year ending December 31, 1999 is expected to be,
$100,000 or more per year.
 
    SECTION 4.22 BOOKS, RECORDS AND ACCOUNTS.  The Company's books, records and
accounts fairly and accurately reflect in all material respects transactions and
dispositions of assets by the Company, and the system of internal accounting
controls of the Company is (in the reasonable judgment of the Company)
sufficient to assure that: (a) transactions are executed in accordance with
management's authorization; and (b) transactions are recorded as necessary to
permit preparation of financial statements in conformity with GAAP, and to
maintain accountability for assets.
 
    SECTION 4.23 BROKERS AND FINDERS.  Except for the fees and expenses payable
to Spencer Trask Securities, Inc., the Company has not employed any investment
banker, broker, finder, consultant or intermediary in connection with the
transactions contemplated by this Agreement which would be entitled to any
investment banking, brokerage, finder's or similar fee or commission in
connection with this Agreement or the transactions contemplated hereby.
 
    SECTION 4.24 NO OMISSIONS OR UNTRUE STATEMENTS.  To the knowledge of the
Company, no representation or warranty made by the Company to Unity in this
Agreement, the Company Disclosure Schedule or in any certificate of a Company
officer required to be delivered to Unity pursuant to the terms of this
Agreement contains or will contain any untrue statement of a material fact, or
omits or will omit to state a material fact necessary to make the statements
contained herein or therein in light of the circumstances in which made not
misleading as of the date hereof and as of the Closing Date.
 
                                      B-14
<PAGE>
                                   ARTICLE V
                    REPRESENTATIONS AND WARRANTIES OF UNITY
 
    Unity hereby represents and warrants to the Company as follows (subject in
each case to such exceptions as are set forth or cross-referenced in the
attached Unity Disclosure Schedule in the labeled section corresponding to the
caption of the representation or warranty to which such exceptions relate;
provided, however, that each exception shall be deemed to apply to any
representation of Unity to which it might reasonably apply):
 
    SECTION 5.1 ORGANIZATION AND QUALIFICATION.  Unity is a corporation duly
incorporated, validly existing and in good standing under the laws of the State
of Delaware. Unity has all requisite corporate power to carry on its business as
it is now being conducted and is duly qualified to do business as a foreign
corporation and is in good standing in all jurisdictions set forth in Section
5.1 of the Unity Disclosure Schedule, and to Unity's knowledge, such
jurisdictions are the only ones in which the properties owned, leased or
operated by Unity or the nature of the business conducted by Unity makes such
qualification necessary, except where the failure to qualify (individually or in
the aggregate) will not have any Material Adverse Effect on Unity. The copies of
the Certificate of Incorporation and By-laws of Unity, as amended to date and
delivered to Company, are true and complete copies of these documents as now in
effect. The minute books of Unity are accurate in all material respects. Unity
does not own any capital stock or other voting interests in any corporation or
other entity.
 
    SECTION 5.2 CAPITALIZATION.  The authorized capital stock of Unity as of the
date hereof (the "Unity Baseline Capitalization") consists of 20,000,000 shares
of Unity Common Stock, $.0001 par value, of which 1,875,000 shares are issued
and outstanding, and 5,000 preferred shares, $.01 par value, none of which are
outstanding. In addition, Unity has reserved 187,500 shares of Unity Common
Stock for issuance pursuant to exercises of options granted under Unity's stock
option plan, none of which have been granted as of the date hereof (the "Unity
Options"). Furthermore, there are authorized, issued and outstanding 1,250,000
Class A Common Stock Purchase Warrants (the "Class A Warrants") and 1,250,000
Class B Common Stock Purchase Warrants (the "Class B Warrants" and, collectively
with the Class A Warrants, the "Public Warrants") providing for the issuance,
upon exercise, of like number of shares of Unity Common Stock, which warrants
are exercisable at $5.50 and $7.50 per warrant, respectively, 100,000 Class A
and 100,000 Class B non-redeemable common stock purchase warrants providing for
the issuance, upon exercise, of like number of Unity Common Stock, which
warrants are exercisable at $5.50 and $7.50 per warrant, respectively
(collectively, the "Private Warrants"), as well as non-redeemable warrants to
purchase 125,000 units, exercisable at $6.60 per unit, each unit consisting of
one share of Unity Common Stock and one Class A and one Class B common stock
purchase warrant (collectively, the "Representative's Unit Warrants"). All of
the outstanding securities of Unity are duly authorized, validly issued, fully
paid and non-assessable, and were not issued in violation of the preemptive
rights of any person. The Unity Common Stock to be issued upon effectiveness of
the Merger, when issued in accordance with the terms of this Agreement, shall be
duly authorized, validly issued, fully paid and non-assessable. All of the
outstanding securities of Unity, including the Unity Common Stock, the Public
Warrants, the Private Warrants and the Representative's Unit Warrants, were
issued in compliance with all applicable securities laws. No shares of capital
stock are held in the treasury of Unity. Other than as stated in this Section
5.2, there are no outstanding subscriptions, options, warrants, calls or rights
of any kind issued or granted by, or binding upon Unity, to purchase or
otherwise acquire any shares of capital stock of Unity or other securities of
Unity. Except as stated in this Section 5.2, there are no outstanding securities
convertible or exchangeable, actually or contingently, into shares of Unity
Common Stock or other securities of Unity.
 
    SECTION 5.3  SUBSIDIARIES.  There are no Unity Subsidiaries. Unity does not
own any capital stock in any other corporation or similar business entity nor is
Unity a partner in any partnership or joint venture.
 
                                      B-15
<PAGE>
    SECTION 5.4  AUTHORITY; NON-CONTRAVENTION; APPROVALS.
 
    (a) Unity has full corporate power and authority to enter into this
       Agreement and, subject to the Unity Stockholders' Approval and as set
       forth in Section 5.4 of the Unity Disclosure Schedule (the "Amendment
       Approval"), and the Required Statutory Approvals, to consummate the
       transactions contemplated hereby. Unity's execution and delivery of this
       Agreement, and its consummation of the transactions contemplated hereby,
       have been duly authorized by its Board of Directors and no other
       corporate proceedings on its part are necessary to authorize its
       execution and delivery of this Agreement and its consummation of the
       transactions contemplated hereby, except for the Unity Stockholders'
       Approval and the obtaining of the Required Statutory Approvals, both of
       which will be solicited in accordance with Section 7.3 hereof. This
       Agreement has been duly and validly executed and delivered by it, and
       constitutes its valid and binding agreement, enforceable against it in
       accordance with its terms, except that such enforcement may be subject to
       the Enforceability Exception.
 
    (b) Unity's execution and delivery of this Agreement does not, and its
       consummation of the transactions contemplated hereby will not, violate,
       conflict with or result in a breach of any provision of, or constitute a
       default (or an event which, with notice or lapse of time or both, would
       constitute a default) under, or result in the termination of, or
       accelerate the performance required by, or result in a right of
       termination or acceleration under, or result in the creation of any lien,
       security interest, charge or encumbrance upon any of its properties or
       assets under any of the terms, conditions or provisions of (i) its
       Certificate of Incorporation or By-Laws, (ii) subject to obtaining the
       Required Statutory Approvals and the receipt of the Company Stockholders'
       Approval and the Unity Stockholders' Approval, any statute, law,
       ordinance, rule, regulation, judgment, decree, order, injunction, writ,
       permit or license of any court or governmental authority applicable to it
       or any of its properties or assets, or (iii) any note, bond, mortgage,
       indenture, deed of trust, license, franchise, permit, concession,
       contract, lease or other instrument, obligation or agreement of any kind
       to which it is now a party or by which it or any of its properties or
       assets may be bound, excluding from the foregoing clauses (ii) and (iii),
       such violations, conflicts, breaches, defaults, terminations,
       accelerations or creations of liens, security interests, charges or
       encumbrances that do not, in the aggregate, have a Material Adverse
       Effect on Unity.
 
    (c) Except for (i) the filing of the Registration Statement and the Joint
       Proxy Statement/Prospectus with the SEC pursuant to the Securities Act
       and the Exchange Act, (ii) the declaration of the effectiveness thereof
       by the SEC, (iii) the filing under Section 25120 of the CCC with the
       California Corporations Commissioner, and (iv) the Required Statutory
       Approvals, no declaration, filing or registration with, or notice to, or
       authorization, consent or approval of, any governmental or regulatory
       body or authority is necessary for Unity's execution and delivery of this
       Agreement or its consummation of the transactions contemplated hereby,
       other than such declarations, filings, registrations, notices,
       authorizations, consents or approvals which, if not made or obtained, as
       the case may be, would not, in the aggregate, have a Material Adverse
       Effect on Unity.
 
    SECTION 5.5  CONTRACTS LISTED; NO DEFAULT.  All material contracts,
agreements, licenses, leases, easements, permits, rights of way, commitments and
understandings, written or oral, connected with or relating in any respect to
the present or future operations of Unity are, with the exception of this
Agreement and the transactions contemplated hereby, described in Unity's SEC
Reports (as defined in Section 5.14) and listed as exhibits thereto (the "Unity
Contracts"). The Unity Contracts are valid and binding upon Unity, and to
Unity's knowledge, the other parties thereto, and are in full force and effect
and enforceable in accordance with their terms, subject to the Enforceability
Exception and neither Unity, nor to Unity's knowledge, any other party to any
Unity Contract, has materially breached any provision of, nor has any event
occurred which, with the lapse of time or action by a third party, could result
in a
 
                                      B-16
<PAGE>
material default under, the terms thereof. To the knowledge of Unity, no
stockholder of Unity has received any payment in violation of law from any
contracting party in connection with or as an inducement for causing Unity to
enter into any Unity Contract.
 
    SECTION 5.6  LITIGATION.  There is no (i) claim, action, suit or proceeding
pending or, to Unity's knowledge, threatened against or directly relating to
Unity before any court or governmental or regulatory authority or body or
arbitration tribunal, or (ii) outstanding judgment, order, writ, injunction or
decree, or application, request or motion therefor, of any court, governmental
agency or arbitration tribunal in a proceeding to which Unity or any of its
assets was or is a party except, in the case of clauses (i) and (ii) above, such
as would not, individually or in the aggregate, either materially impair or
preclude Unity's ability to consummate the Merger or the other transactions
contemplated hereby or have a Material Adverse Effect on Unity.
 
    SECTION 5.7  TAXES.  Unity has duly filed with the appropriate governmental
agencies all Tax Returns required to be filed by it other than Tax Returns which
the failure to file would have no Material Adverse Effect on Unity. All such Tax
Returns were, when filed, and to Unity's knowledge are, accurate and complete in
all material respects and were prepared in conformity with applicable laws and
regulations. Unity has paid or will pay in full or has adequately reserved
against all Taxes otherwise assessed against it through the Closing Date. Unity
is not a party to any pending action or proceeding by any governmental authority
for the assessment of any Tax, and, to Unity's knowledge, no claim for
assessment or collection of any Tax has been asserted against Unity that has not
been paid. There are no Tax liens upon the assets of Unity (other than liens for
taxes not yet due and payable). There is no valid basis, to Unity's knowledge,
for any assessment, deficiency, notice, 30-day letter or similar intention to
assess any Tax to be issued to Unity by any governmental authority.
 
    SECTION 5.8  EMPLOYEE PLANS.  Unity has no employee benefit plans as defined
in Section 3(3) of ERISA nor any employment agreements.
 
    SECTION 5.9  NO VIOLATION OF LAW.  Unity is not in violation of and has not
been given notice or been charged with any violation of, any law, statute,
order, rule, regulation, ordinance or judgment (including, without limitation,
any applicable environmental law, ordinance or regulation) of any governmental
or regulatory body or authority, except for violations which, in the aggregate,
do not have, and would not reasonably be expected to have, a Material Adverse
Effect on Unity. Unity has not received any written notice that any
investigation or review with respect to it by any governmental or regulatory
body or authority is pending or threatened, other than, in each case, those the
outcome of which, as far as reasonably can be foreseen, would not reasonably be
expected to have a Material Adverse Effect on Unity. Unity has all permits,
licenses, franchises, variances, exemptions, orders and other governmental
authorizations, consents and approvals necessary to conduct its business as
presently conducted, except for those, the absence of which, alone or in the
aggregate, would not have a Material Adverse Effect on Unity (collectively, the
"Unity Permits"). Unity (a) has duly and timely filed all reports and other
information required to be filed with any governmental or regulatory authority
in connection with the Unity Permits, and (b) is not in violation of the terms
of any of the Unity Permits, except for such omissions or delays in filings,
reports or violations which, alone or in the aggregate, would not have a
Material Adverse Effect on Unity. Section 5.9 of the Unity Disclosure Schedule
contains a list of the Unity Permits.
 
    SECTION 5.10  PROPERTIES.  Unity has good and marketable title to all of the
assets and properties which it purports to own as reflected on the most recent
balance sheet comprising a portion of the Unity Financial Statements (as defined
in Section 5.13) or thereafter acquired (except assets and properties sold or
otherwise disposed of since the date of such balance sheet in the ordinary
course of business). Unity has a valid leasehold interest in all properties of
which it is the lessee and each such lease is valid, binding and enforceable
against Unity, and, to the knowledge of Unity, the other parties thereto in
accordance with its terms, subject to the Enforceability Exception. Neither
Unity nor, to Unity's knowledge, the other parties thereto are in default in the
performance of any material provision thereunder. Neither the whole nor any
 
                                      B-17
<PAGE>
material portion of the assets of Unity is subject to any governmental decree or
order to be sold or is being condemned, expropriated or otherwise taken by any
public authority with or without payment of compensation therefor, nor, to the
knowledge of Unity, has any such condemnation, expropriation or taking been
proposed. None of the material assets of Unity is subject to any restriction
which would prevent continuation of the use currently made thereof or materially
adversely affect the value thereof.
 
    SECTION 5.11 REGISTRATION STATEMENT AND PROXY STATEMENT.  None of the
information to be supplied by Unity for inclusion in the Registration Statement
or the Joint Proxy Statement/Prospectus will, in the case of the Joint Proxy
Statement/Prospectus or any amendments thereof or supplements thereto, at the
time of the mailing of the Joint Proxy Statement/Prospectus and any amendments
or supplements thereto, and at the time of the meeting of the stockholders of
Unity to be held in connection with the transactions contemplated by this
Agreement, or, in the case of the Registration Statement, as amended or
supplemented, at the time it becomes effective and at the time of such meetings,
contain any untrue statement of a material fact or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they are made, not
misleading.
 
    SECTION 5.12  BUSINESS.  Unity, since its formation, has engaged in no
business other than to seek to serve as a vehicle for the acquisition of an
operating business, and, except for this Agreement, is not a party to any
contract or agreement for the acquisition of an operating business. Unity has no
employees.
 
    SECTION 5.13  FINANCIAL STATEMENTS.  The financial statements of Unity
(collectively, the "Unity Financial Statements") included in Unity's SEC Reports
(as defined in Section 5.14) present fairly, in all material respects, the
financial position and results of operations of Unity as of the respective
dates, years and periods indicated, prepared in accordance with GAAP, applied on
a consistent basis, and in accordance with Regulation S-X of the SEC and, in
particular, Rules 1-02 and 3-05 thereunder (subject, in the case of unaudited
interim period financial statements, to normal and recurring year-end
adjustments which, individually or collectively, are not material to Unity).
Without limiting the generality of the foregoing, (i) there is no basis for any
assertion against Unity as of the date of the most recent balance sheet
comprising a portion of the Unity Financial Statements of any material debt,
liability or obligation of any nature not fully reflected or reserved against in
the Unity Financial Statements or in the notes thereto required to be so
reflected or reserved in accordance with GAAP; and (ii) there are no assets of
Unity, the value of which (in the reasonable judgment of Unity) is materially
overstated in the Unity Financial Statements. Except as disclosed therein or as
incurred in the ordinary course of business since October 31, 1998, Unity has no
known material contingent liabilities (including liabilities for Taxes). Unity
is not a party to any contract or agreement for the forward purchase or sale of
any foreign currency and has not invested in any "derivatives."
 
    SECTION 5.14  UNITY'S SEC REPORTS.  The Unity Common Stock has been
registered under Section 12 of the Exchange Act on Form 8-A. Since its
inception, Unity has filed all reports, registration statements and other
documents, together with any amendments thereto, required to be filed under the
Securities Act and the Exchange Act, including but not limited to reports on
Form 10-K and Form 10-Q, and Unity will file all such reports, registration
statements and other documents required to be filed by it from the date of this
Agreement to the Closing Date (all such reports, registration statements and
documents, including its Form 8-A, filed or to be filed with the SEC, including
Unity's initial registration statement relating to the Unity Common Stock,
Public Warrants, Private Warrants and the Representative's Unit Warrants, with
the exception of the Registration Statement and the Joint Proxy Statement/
Prospectus, are collectively referred to as "Unity's SEC Reports"). As of their
respective dates, Unity's SEC Reports complied or will comply in all material
respects with all rules and regulations promulgated by the SEC and did not or
will not contain any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made,
not misleading. Unity has provided to the Company a true and
 
                                      B-18
<PAGE>
complete copy of all of Unity's SEC Reports filed on or prior to the date
hereof, and will promptly provide to the Company a true and complete copy of any
such reports filed after the date hereof and prior to the Closing Date. Neither
Unity nor any of its respective directors or officers is the subject of any
investigation, inquiry or proceeding before the SEC or any state securities
commission or administrative agency.
 
    SECTION 5.15  BULLETIN BOARD.  Each of the Unity Common Stock, Class A
Warrants and Class B Warrants are quoted on the Bulletin Board under the
respective symbols "UFAC", "UFACW" and "UFACZ," and Unity is in compliance in
all respects with all rules and regulations of the National Association of
Securities Dealers, Inc. applicable to Unity and to the inclusion for quotation
of such securities on the Bulletin Board.
 
    SECTION 5.16  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as set forth in
Section 5.16 of Unity Disclosure Schedule, since October 31, 1998 there has not
been:
 
    (a) any material adverse change in the financial condition, operations,
       properties, assets, liabilities or business of Unity;
 
    (b) any material damage, destruction or loss of any material properties of
       Unity, whether or not covered by insurance;
 
    (c) any change in the manner in which the business of Unity has been
       conducted;
 
    (d) any material change in the treatment and protection of trade secrets or
       other confidential information of Unity; and
 
    (e) any occurrence not included in paragraphs (a) through (d) of this
       Section which has resulted, or which Unity has reason to believe, could
       reasonably be expected to result, in a Material Adverse Effect on Unity.
 
    SECTION 5.17  BOOKS, RECORDS AND ACCOUNTS.  Unity's books, records and
accounts fairly and accurately reflect in all material respects transactions and
dispositions of assets by Unity, and the system of internal accounting controls
of Unity is sufficient to assure that: (a) transactions are executed in
accordance with management's authorization; (b) transactions are recorded as
necessary to permit preparation of financial statements in conformity with GAAP,
and to maintain accountability for assets; (c) access to assets is permitted
only in accordance with management's authorization; and (d) the recorded
accountability for assets is compared with the existing assets at reasonable
intervals and appropriate action is taken with respect to any differences.
 
    SECTION 5.18  BROKERS AND FINDERS.  Unity has not employed any investment
banker, broker, finder, consultant or intermediary in connection with the
transactions contemplated by this Agreement which would be entitled to any
investment banking, brokerage, finder's or similar fee or commission in
connection with this Agreement or the transactions contemplated hereby.
 
    SECTION 5.19  NO OMISSIONS OR UNTRUE STATEMENTS.  To Unity's knowledge, no
representation or warranty made by Unity to the Company in this Agreement, the
Unity Disclosure Schedule or in any certificate of a Unity officer required to
be delivered to the Company pursuant to the terms of this Agreement contains or
will contain any untrue statement of a material fact, or omits or will omit to
state a material fact necessary to make the statements contained herein or
therein in light of the circumstances in which made not misleading as of the
date hereof and as of the Closing Date.
 
                                      B-19
<PAGE>
                                   ARTICLE VI
 
                     CONDUCT OF BUSINESS PENDING THE MERGER
 
    SECTION 6.1  CONDUCT OF BUSINESS PRIOR TO EFFECTIVE TIME.  Each of Unity and
the Company hereby covenants and agrees as follows, from and after the date of
this Agreement and until the Effective Time, except as specifically consented to
in writing by the other party or as set forth in Section 6.1 of the respective
Disclosure Schedules:
 
    (a) It shall conduct its business in the ordinary and usual course of
business and consistent with past practice;
 
    (b) It shall not (i) split, combine or reclassify its outstanding capital
stock or declare, set aside or pay any dividend or distribution payable in cash,
stock, property or otherwise, (ii) spin-off any assets or businesses, (iii)
engage in any transaction for the purpose of effecting a recapitalization, or
(iv) engage in any transaction or series of related transactions which has a
similar effect to any of the foregoing;
 
    (c) Other than as set forth in Section 6.1(c) of the Company Disclosure
Schedule, it shall not issue, sell, pledge or dispose of, or agree to issue,
sell, pledge or dispose of, any additional shares of, or any options, warrants
or rights of any kind to acquire any shares of its capital stock of any class or
any debt or equity securities convertible into or exchangeable for such capital
stock or amend or modify the terms and conditions of any of the foregoing,
provided, however, that it (i) may issue shares upon exercise of outstanding
options, warrants or stock purchase rights and (ii) in the case of the Company
it may (w) grant options to acquire shares of Company Common Stock to both
present and future employees under the Company Stock Option Plan, (x) offer and
sell shares of Company Common Stock in one or more private transactions at a
price of not less than $1.00 per share to an aggregate maximum of $4,175,000 and
may issue warrants to acquire shares of Company Common Stock in customary
amounts to placement agents who facilitate such sales, (y) issue shares of
Company Common Stock as well as warrants to purchase shares of Company Common
Stock to non-affiliated persons and entities for the purposes of purchasing or
licensing technology which, in the reasonable judgment of the Company's Board of
Directors, is necessary or desirable for the Company's growth and development,
and (z) issue up to an aggregate maximum of 100,000 shares of Company Common
Stock or options or warrants to acquire such shares to entities which currently
provide services to the Company or to directors, officers, consultants or
employees of such entities;
 
    (d) It shall not (i) redeem, purchase, acquire or offer to purchase or
acquire any shares of its capital stock, other than as required by the governing
terms of such securities, (ii) take any action (either before or after the
Effective Time) which would jeopardize the treatment of the Merger as a
"reorganization" within the meaning of Section 368(a) of the Code, (iii) take or
fail to take any action which action or failure to take action would cause it or
its stockholders (except to the extent that any stockholders receive cash in
lieu of fractional shares) to recognize gain or loss for federal income tax
purposes as a result of the consummation of the Merger, (iv) make any
acquisition of any material assets (except in the ordinary course of business)
or businesses, (v) sell any material assets (except in the ordinary course of
business) or businesses, or (vi) enter into any contract, agreement, commitment
or arrangement to do any of the foregoing;
 
    (e) It shall use reasonable efforts to preserve intact its business
organization and goodwill, keep available the services of its present officers
and key employees, and preserve the goodwill and business relationships with
suppliers, distributors, customers, and others having business relationships
with it, and not engage in any action, directly or indirectly, with the intent
to impact adversely the transactions contemplated by this Agreement;
 
    (f) It shall confer on a regular basis with one or more representatives of
the other to report on material operational matters and the general status of
ongoing operations; and
 
                                      B-20
<PAGE>
    (g) It shall file with the SEC all forms, statements, reports and documents
(including all exhibits, amendments and supplements thereto) required to be
filed by it pursuant to the Exchange Act.
 
    SECTION 6.2  NO SOLICITATION.
 
    (a) The Company agrees that, prior to the Effective Time or the termination
or abandonment of this Agreement, the Company shall not give authorization or
permission to any of its directors, officers, employees, agents or
representatives to, and each shall use all reasonable efforts to see that such
persons do not, directly or indirectly, solicit, initiate, facilitate or
encourage (including by way of furnishing or disclosing information) any merger,
consolidation, other business combination involving the Company, acquisition of
all or any substantial portion of the assets or capital stock of the Company or
of the assets of any division of the Company, or inquiries or proposals
concerning or which may reasonably be expected to lead to any of the foregoing
(a "Company Acquisition Transaction") or negotiate, explore or otherwise
knowingly communicate in any way with any third party (other than Unity or its
affiliates) with respect to any Company Acquisition Transaction or enter into
any agreement, arrangement or understanding requiring it to abandon, terminate
or fail to consummate the Merger or any other transaction expressly contemplated
by this Agreement, or contemplated to be a material part thereof. The Company
shall advise Unity in writing of any BONA FIDE inquiries or proposals relating
to any Company Acquisition Transaction within one business day following the
Company's receipt of any such inquiry or proposal. The Company shall also
promptly advise any person seeking a Company Acquisition Transaction that it is
bound by the provisions of this Section.
 
    (b) Unity agrees that, prior to the Effective Time or the termination or
abandonment of this Agreement, Unity shall not give authorization or permission
to any of its directors, officers, employees, agents or representatives to, and
each shall use all reasonable efforts to see that such persons do not, directly
or indirectly, solicit, initiate, facilitate or encourage (including by way of
furnishing or disclosing information) any merger, consolidation, other business
combination involving Unity, acquisition of all or any substantial portion of
the assets or capital stock of Unity or of the assets of any division of Unity,
or inquiries or proposals or which may reasonably be expected to lead to any of
the foregoing (a "Unity Acquisition Transaction") or negotiate, explore or
otherwise knowingly communicate in any way with any third party (other than the
Company or its affiliates) with respect to any Unity Acquisition Transaction or
enter into any agreement, arrangement or understanding requiring it to abandon,
terminate or fail to consummate the Merger or any other transaction expressly
contemplated by this Agreement, or contemplated to be a material part thereof.
Unity shall advise the Company in writing of any BONA FIDE inquiries or
proposals relating to a Unity Acquisition Transaction, within one business day
following Unity's receipt of any such inquiry or proposal. Unity shall also
promptly advise any person seeking a Unity Acquisition Transaction that it is
bound by the provisions of this Section.
 
                                  ARTICLE VII
                             ADDITIONAL AGREEMENTS
 
    SECTION 7.1  ACCESS TO INFORMATION.  Each of Unity and the Company shall
afford to the other and the other's accountants, counsel, financial advisors and
other representatives reasonable access during normal business hours throughout
the period prior to the Effective Time to all properties, books, contracts,
commitments and records (including, but not limited to, Tax Returns) of it and,
during such period, shall furnish promptly (a) a copy of each report, schedule
and other document filed or received by it during such period pursuant to the
requirements of federal or state securities laws or filed by it during such
period with the SEC in connection with the transactions contemplated by this
Agreement or which may have a Material Adverse Effect on its business,
properties or personnel and (b) such other information concerning its business,
properties and personnel as the other shall reasonably request; provided,
however, that no investigation pursuant to this Section 7.1 shall affect any
representation or warranty made herein or the
 
                                      B-21
<PAGE>
conditions to the obligations of the respective parties to consummate the
Merger. All non-public documents and information furnished to Unity or to the
Company, as the case may be, in connection with the transactions contemplated by
this Agreement shall be deemed to have been received, and shall be held by the
recipient, in confidence, except that Unity and the Company, as applicable, may
disclose such information as may be necessary in connection with seeking the
Unity Required Statutory Approvals, the Unity Stockholders' Approval, the
Company Required Statutory Approvals and the Company Stockholders' Approval. The
Company shall promptly advise Unity, and Unity shall promptly advise the
Company, in writing, of any change or the occurrence of any event after the date
of this Agreement and prior to the Effective Time having, or which, insofar as
can reasonably be foreseen, in the future would reasonably be expected to have,
any Material Adverse Effect on the Company or Unity, as applicable.
 
    SECTION 7.2  REGISTRATION STATEMENT AND PROXY STATEMENT/ PROSPECTUS.  Unity
and the Company shall prepare and file with the SEC as soon as is reasonably
practicable after the date hereof the Registration Statement and Joint Proxy
Statement/Prospectus and shall use all reasonable efforts to have the
Registration Statement declared effective by the SEC as promptly as practicable.
Unity and the Company shall take any action required to be taken under
applicable California "blue sky" or securities laws in connection with the
issuance of Unity Common Stock. Unity and the Company shall promptly furnish to
each other all information, and take such other actions, as may reasonably be
requested in connection with any action by any of them in connection with the
preceding sentence and shall cooperate with one another and use their respective
best efforts to facilitate the expeditious consummation of the transactions
contemplated by this Agreement. The Registration Statement shall contain an
updated prospectus covering the Public Warrants, the Private Warrants and the
Representative's Unit Warrants and the like number of shares of Unity Common
Stock issuable upon exercise thereof (the "Unity Underlying Stock"), as well as
a resale prospectus covering all shares of Unity Common Stock that are
beneficially owned by the current officers and directors of Unity and their
respective affiliates (collectively, the "Unity Affiliates' Stock"). If the
rules and regulations of the SEC shall not permit the utilization of the
Registration Statement for this purpose, Unity and the Company shall prepare and
file with the SEC contemporaneously with the filing of the Registration
Statement and the Joint Proxy Statement/Prospectus a registration statement on
Form S-1 covering the Public Warrants, the Private Warrants, the
Representative's Unit Warrants, the Unity Underlying Stock and the Unity
Affiliates' Stock (the "Companion Registration Statement"), and each covenants
with the other to use all reasonable efforts to have the Companion Registration
Statement declared effective by the SEC as promptly as practicable but in no
event later than the expiration of forty (40) business days following the
Effective Time. These covenants shall survive the Effective Time. Unity will pay
all expenses of filing, printing and distributing the Registration Statement and
the Joint Proxy Statement/Prospectus.
 
    SECTION 7.3  STOCKHOLDERS' APPROVAL.  The Company shall use its reasonable
best efforts to obtain stockholder approval and adoption (the "Company
Stockholders' Approval") of this Agreement and the transactions contemplated
hereby as soon as practicable following the date upon which the Registration
Statement is declared effective by the SEC. The Company shall, through its Board
of Directors, recommend to the holders of Company Common Stock approval of this
Agreement and the transactions contemplated by this Agreement. Unity shall use
its reasonable best efforts to obtain stockholder approval and adoption (the
"Unity Stockholders' Approval") of this Agreement and the transactions
contemplated hereby as soon as practicable following the date upon which the
Registration Statement is declared effective by the SEC. Unity shall, through
its Board of Directors, recommend to the holders of Unity Common Stock approval
of this Agreement and the transactions contemplated by this Agreement.
 
    SECTION 7.4  NASDAQ LISTING.  Unity and the Company shall each use its best
efforts to effect, at or before the Effective Time, authorization for listing of
the shares of Unity Common Stock on the NASDAQ SmallCap Market or, if
permissible, the NASDAQ National Market.
 
                                      B-22
<PAGE>
    SECTION 7.5  AGREEMENT TO COOPERATE.  Subject to the terms and conditions
herein provided, each of the parties hereto shall cooperate and use their
respective best efforts to take, or cause to be taken, all action and to do, or
cause to be done, all things necessary, proper or advisable under applicable
laws and regulations to consummate and make effective the transactions
contemplated by this Agreement, including using its reasonable efforts to obtain
all necessary or appropriate waivers, consents and approvals to effect all
necessary registrations, filings and submissions and to lift any injunction or
other legal bar to the Merger (and, in such case, to proceed with the Merger as
expeditiously as possible), subject, however, to obtaining the Required
Statutory Approvals, the Company Stockholders' Approval and the Unity
Stockholders' Approval; and provided that nothing in this Section 7.5 shall
affect any responsibility or obligation specifically allocated to any party in
this Agreement.
 
    SECTION 7.6  PUBLIC STATEMENTS.  The parties shall consult with each other
prior to issuing any press release or any written public statement with respect
to this Agreement or the transactions contemplated hereby. Unity shall not issue
any such press release or any other public statement with respect to this
Agreement or the transactions contemplated hereby absent the prior written
consent of the Company, except that such prior written consent shall not be
required if, in the reasonable judgment of Unity based upon the advice of
counsel, seeking and obtaining prior written consent would prevent the timely
dissemination of such release or statement in violation of the Exchange Act,
other applicable law, rule, regulation or policy of the Bulletin Board.
 
    SECTION 7.7  CORRECTIONS TO THE JOINT PROXY STATEMENT/PROSPECTUS AND
REGISTRATION STATEMENT. Prior to the Effective Time, each of the Company and
Unity shall correct promptly any information provided by it to be used
specifically in the Registration Statement, Joint Proxy Statement/Prospectus
and, if applicable, Companion Registration Statement that shall have become
false or misleading in any material respect and shall take all steps necessary
to file with the SEC and have declared effective or cleared by the SEC any
amendment or supplement to the Registration Statement, Joint Proxy Statement/
Prospectus or Companion Registration Statement, as applicable, so as to correct
the same and to cause appropriate dissemination thereof to the stockholders of
the Company and/or stockholders of Unity, in each case to the extent required by
applicable law.
 
    SECTION 7.8  DISCLOSURE SUPPLEMENTS.  From time to time prior to the
Effective Time, and in any event immediately prior to the Effective Time, each
of Unity and the Company shall promptly supplement or amend its Disclosure
Schedule with respect to any matter hereafter arising that, if existing,
occurring or known at the date of this Agreement, would have been required to be
set forth or described in such Disclosure Schedule or that is necessary to
correct any information in such Disclosure Schedule that is or has become
inaccurate. Notwithstanding the foregoing, if any such supplement or amendment
discloses a Material Adverse Effect, the conditions to the other party's
obligations to consummate the Merger set forth in Article VIII hereof shall be
deemed not to have been satisfied.
 
                                      B-23
<PAGE>
                                  ARTICLE VIII
 
                                   CONDITIONS
 
    SECTION 8.1  CONDITIONS TO EACH PARTY'S OBLIGATIONS TO EFFECT THE
MERGER.  The respective obligation of each party to effect the Merger shall be
subject to the fulfillment at or prior to the Closing Date of the following
conditions:
 
    (a) The Company shall have obtained the Company Stockholders' Approval;
 
    (b) Unity shall have obtained the Unity Stockholders' Approval and the
       Amendment Approval;
 
    (c) The Registration Statement shall have become effective in accordance
       with the provisions of the Securities Act, and no stop order suspending
       such effectiveness shall have been issued and remain in effect;
 
    (d) No preliminary or permanent injunction or other order or decree by any
       federal or state court which prevents or materially burdens the
       consummation of the Merger shall have been issued and remain in effect
       (each party agreeing to use its reasonable efforts to have any such
       injunction, order or decree lifted);
 
    (e) No action shall have been taken, and no statute, rule or regulation
       shall have been enacted, by any state or federal government or
       governmental agency in the United States, which would prevent or
       materially burden the consummation of the Merger;
 
    (f) All consents, orders and approvals legally required for the consummation
       of the Merger and the transactions contemplated hereby (including without
       limitation all Required Statutory Approvals) shall have been obtained and
       be in effect at the Effective Time without any material limitations or
       conditions; and
 
    (g) As of the Closing Date, all "blue sky" filings as may be required in
       order for the offer, issuance and sale of all of the shares of Unity
       Common Stock to be issued pursuant to Section 3.1 of this Agreement to be
       in full compliance with all applicable state securities laws and
       regulations shall have been made and shall be in effect and not subject
       to any suspension, revocation, or stop order, as may be required in order
       for the offer, issuance and sale of all such securities to be legally
       permitted under all such laws and regulations.
 
    SECTION 8.2  CONDITIONS TO OBLIGATIONS OF THE COMPANY TO EFFECT THE
MERGER.  Unless waived by the Company, the obligation of the Company to effect
the Merger shall also be subject to the fulfillment at or prior to the Closing
Date of the following additional conditions:
 
    (a) Unity shall have performed in all material respects its agreements
       contained in this Agreement required to be performed on or prior to the
       Closing Date and the representations and warranties of Unity contained in
       this Agreement shall be true and correct in all material respects (except
       for those representations and warranties which are themselves limited by
       a reference to materiality, which shall be true and correct in all
       respects other than as modified) on and as of (i) the date made and (ii)
       the Closing Date (in each case except in the case of representations and
       warranties expressly made solely with reference to a particular date
       which shall be true and correct in all material respects as of such
       date); and the Company shall have received a certificate of the President
       and Chief Executive Officer of Unity to that effect;
 
    (b) The Company shall have received an opinion from Cooperman Levitt
       Winikoff Lester & Newman, P.C. ("Cooperman Levitt"), counsel to Unity,
       dated the Closing Date, substantially in the form set forth in Exhibit
       III hereto;
 
    (c) The Company shall have received "comfort" letters from Arthur Andersen
       LLP, independent public accountants for Unity, dated the date of the
       Joint Proxy Statement/Prospectus, the
 
                                      B-24
<PAGE>
       effective date of the Registration Statement and the Closing Date (or
       such other date reasonably acceptable to the Company) with respect to
       certain financial statements and other financial information included in
       the Registration Statement in customary form;
 
    (d) The Company shall have received an opinion of Brobeck, Phleger &
       Harrison LLP ("Brobeck Phleger"), counsel to the Company, dated the
       Effective Time, to the effect that the Merger will be treated for federal
       income tax purposes as a reorganization within the meaning of Section
       368(a) of the Code;
 
    (e) Since the date of this Agreement there shall not have been any Material
       Adverse Effect with respect to Unity, the likelihood of which was not
       previously disclosed to the Company by Unity in the Unity Disclosure
       Schedule or contemplated by this Agreement and Unity shall have engaged
       in no business activity since the date of its incorporation other than
       conducting a public offering of its securities and, thereafter, seeking
       to effect a merger or similar business combination with an operating
       business;
 
    (f) Unity shall have furnished to the Company such additional certificates
       and other customary closing documents as the Company may have reasonably
       requested as to any of the conditions set forth in this Section 8.2;
 
    (g) At the Effective Time, Unity shall have at least an aggregate of
       $6,000,000 in cash or cash equivalents before giving effect to any
       payments required to be paid to Unity's stockholders exercising their
       rights, contained in Unity's Certificate of Incorporation, as amended, to
       requested conversion of their respective shares of Unity Common Stock
       into cash (the "Cash Out Option") should the Merger be consummated, but
       after giving effect to the payment or accrual on or prior to the
       Effective Time of all expenses incurred by Unity, including, but not
       limited to, the fees and expenses of Unity's attorneys and accountants,
       in connection with the transactions contemplated by this Agreement;
 
    (h) The holders of no greater than nineteen and 99/100 percent (19.99%) in
       the aggregate in interest of Unity Common Stock shall exercise the Cash
       Out Option;
 
    (i) The holders of no greater than ten percent (10%) in the aggregate in
       interest of Unity Common Stock shall have perfected their statutory
       dissenters' rights with respect to the Merger and have Dissenters' Stock;
 
    (j) At Closing, the Unity Baseline Capitalization, the number of Unity
       Options and the respective numbers of Public Warrants, Private Warrants
       and Representative's Unit Warrants (collectively "Unity Derivatives")
       shall be unchanged (other than to reflect issuances, if any, of Unity
       Common Stock upon exercises prior to the Effective Time of Unity
       Derivatives) from that set forth in Section 5.2;
 
    (k) The Company shall have received a letter agreement signed by each
       officer, director and principal stockholder of Unity and their respective
       Affiliates (as such term is defined in Rule 501, promulgated under the
       Securities Act) (collectively, the "Unity Principals") in substantially
       the form attached as Schedule 8.2(k) hereto ("Lock-Up Agreements");
 
    (l) The Company shall have received written resignations from each of
       Unity's officers and directors (except that Lawrence Burstein shall
       resign only as an officer of Unity), which resignations, by their
       respective terms, shall become effective immediately prior to the
       Effective Time;
 
    (m) The Company shall have received a copy of a Voting Agreement in
       substantially the form attached hereto as Schedule 8.2(m) (the "Voting
       Agreement") signed by each of the Unity Principals;
 
                                      B-25
<PAGE>
    (n) Unity shall have conducted the operation of its business in material
       compliance with all applicable laws, rules and regulations, whether
       Federal, state or local in their nature, and all approvals required of
       Unity under applicable law to enable Unity to perform its obligations
       under this Agreement shall have been obtained; and
 
    (o) All corporate proceedings of Unity in connection with the Merger and the
       other transactions contemplated by this Agreement and all agreements,
       instruments, certificates, and other documents delivered to the Company
       by or on behalf of Unity pursuant to this Agreement shall be reasonably
       satisfactory to the Company and its counsel.
 
    SECTION 8.3  CONDITIONS TO OBLIGATIONS OF UNITY TO EFFECT THE
MERGER.  Unless waived by Unity, the obligations of Unity to effect the Merger
shall also be subject to the fulfillment at or prior to the Closing Date of the
additional following conditions:
 
    (a) The Company shall have performed in all material respects its agreements
       contained in this Agreement required to be performed on or prior to the
       Closing Date and the representations and warranties of the Company
       contained in this Agreement shall be true and correct in all material
       respects (except for those representations and warranties which are
       themselves limited by a reference to materiality, which shall be true and
       correct in all respects, other than as modified) on and as of (i) the
       date made and (ii) the Closing Date (in each case except in the case of
       representations and warranties expressly made solely with reference to a
       particular date which shall be true and correct in all material respects
       as of such date); and Unity shall have received a Certificate of the
       President and Chief Executive Officer or of a Vice President of the
       Company to that effect;
 
    (b) Unity shall have received an opinion from Brobeck Phleger, dated the
       Closing Date, substantially in the form set forth in Exhibit IV hereto;
 
    (c) Unity shall have received "comfort" letters from BDO Seidman, LLP,
       independent certified public accountants for the Company, dated the date
       of the Joint Proxy Statement/Prospectus, the effective date of the
       Registration Statement and the Closing Date (or such other date
       reasonably acceptable to Unity) with respect to certain financial
       statements and other financial information included in the Registration
       Statement in customary form;
 
    (d) Unity shall have received an opinion of Cooperman Levitt, dated the
       Effective Time, to the effect that the Merger will be treated for federal
       income tax purposes as a reorganization within the meaning of Section
       368(a) of the Code;
 
    (e) At Closing, the Company's Baseline Capitalization shall be unchanged
       (other than to reflect issuances, if any, of Company Contingent Stock
       upon exercises and/or conversions prior to the Effective Time of Company
       Derivatives) and the number of shares of Contingent Company Stock shall
       be no greater, respectively, than as set forth in Section 4.2.
       Notwithstanding the foregoing, (i) the Company may grant options to
       acquire shares of Company Common Stock to both present and future
       employees under the Company Stock Option Plan, (ii) the Company may offer
       and sell shares of Company Common Stock in one or more private
       transactions at a price of not less than $1.00 per share to an aggregate
       maximum of $4,175,000 and may issue warrants to acquire shares of Company
       Common Stock in customary amounts to placement agents who facilitate such
       sales, (iii) the Company may issue shares of Company Common Stock as well
       as warrants to purchase shares of Company Common Stock to non-affiliated
       persons and entities for the purposes of purchasing or licensing
       technology which, in the reasonable judgment of the Company's Board of
       Directors, is necessary or desirable for the Company's growth and
       development, (iv) the Company may issue up to an aggregate maximum of
       100,000 shares of Company Common Stock to entities which currently
       provide services to the Company for future services, and (v) the Company
       may issue Company Common Stock and/or options or rights to acquire
 
                                      B-26
<PAGE>
       Company Common Stock and/or warrants to acquire shares of Company Common
       Stock in satisfaction of the preemptive rights described in Section
       4.2(c);
 
    (f) The Company shall have furnished to Unity such additional certificates
       and other customary closing documents as Unity may have reasonably
       requested as to any of the conditions set forth in this Section 8.3;
 
    (g) Since the date of this Agreement there shall not have been any Material
       Adverse Effect with respect to the Company, the likelihood of which was
       not previously disclosed to Unity by the Company;
 
    (h) Unity shall have received Lock-Up Agreements from each officer, director
       and principal stockholder of the Company and their respective Affiliates
       (collectively, the "Company Principals") in substantially the form
       attached as Schedule 8.3(h) hereto;
 
    (i) The Company shall have furnished to Unity evidence, reasonably
       satisfactory to Unity, that each of the purchasers of Common Stock
       pursuant to that certain Private Placement Memorandum, dated September 2,
       1998, as supplemented, between the Company and Spencer Trask Securities
       Incorporated has executed, or shall be deemed to have executed Lock-Up
       Agreements upon substantially identical terms as those contemplated to be
       executed by each of the Company Principals pursuant to subparagraph (h)
       of this Section 8.3;
 
    (j) The holders of no greater than ten percent (10%) in the aggregate in
       interest of Company Common Stock shall have perfected their statutory
       dissenters' rights with respect to the Merger and have Dissenters' Stock;
 
    (k) Unity shall have received a copy of the Voting Agreement signed by each
       of the Company Principals; and
 
    (l) All corporate proceedings of the Company in connection with the Merger
       and the other transactions contemplated by this Agreement and all
       agreements, instruments, certificates and other documents delivered to
       Unity by or on behalf of the Company pursuant to this Agreement shall be
       in substantially the form called for hereunder or otherwise reasonably
       satisfactory to Unity and its counsel.
 
                                   ARTICLE IX
                       TERMINATION, AMENDMENT AND WAIVER
 
    SECTION 9.1  TERMINATION.  This Agreement may be terminated at any time
prior to the Closing Date, whether before or after approval by the stockholders
of the Company and/or Unity:
 
    (a) by mutual consent in writing of Unity and the Company;
 
    (b) unilaterally upon written notice by Unity to the Company upon the
       occurrence of a Material Adverse Effect with respect to the Company, the
       likelihood of which was not previously disclosed to Unity in writing by
       the Company prior to the date of this Agreement;
 
    (c) unilaterally upon written notice by the Company to Unity upon the
       occurrence of a Material Adverse Effect with respect to Unity, the
       likelihood of which was not previously disclosed to the Company in
       writing by Unity prior to the date of this Agreement;
 
    (d) unilaterally upon written notice by Unity to the Company in the event of
       the Company's material breach of any material representation or warranty
       of the Company contained in this Agreement (unless such breach shall have
       been cured by the Company within ten (10) days after the giving of such
       notice by Unity), or the Company's willful failure to comply with or
       satisfy any material
 
                                      B-27
<PAGE>
       covenant or condition of the Company contained in this Agreement, or if
       the Company fails to obtain the Company Stockholders' Approval;
 
    (e) unilaterally upon written notice by the Company to Unity in the event of
       Unity's material breach of any material representation or warranty
       contained in this Agreement (unless such breach shall have been cured by
       Unity within ten (10) days after the giving of such notice by the
       Company), or Unity's willful failure to comply with or satisfy any
       material covenant or condition of Unity contained in this Agreement, or
       if Unity fails to obtain the Unity Stockholders' Approval; or
 
    (f) unilaterally upon written notice by either Unity or the Company to the
       other if the Merger is not consummated for any reason not specified or
       referred to in the preceding provisions of this Section 9.1 by the close
       of business on June 30, 1999.
 
    SECTION 9.2  EFFECT OF TERMINATION.  In the event of termination of this
Agreement by either Unity or the Company, as provided in Section 9.1, this
Agreement shall forthwith become void and there shall be no further obligation
on the part of either the Company or Unity (except as set forth in the
penultimate sentence of Section 7.1 (with respect to confidential and non-public
information) and Section 9.5, which shall survive such termination). Nothing in
this Section 9.2 shall relieve any party from liability for any breach of this
Agreement.
 
    SECTION 9.3  AMENDMENT.  This Agreement may not be amended except by an
instrument in writing signed on behalf of each of the parties hereto and in
compliance with applicable law.
 
    SECTION 9.4  WAIVER.  At any time prior to the Effective Time, the parties
hereto may (i) extend the time for the performance of any of the obligations or
other acts of the other parties hereto, (ii) waive any inaccuracies in the
representations and warranties contained herein or in any document delivered
pursuant thereto and (iii) waive compliance with any of the agreements or
conditions contained herein. Any agreement on the part of a party hereto to any
such extension or waiver shall be valid only if set forth in an instrument in
writing signed on behalf of such party.
 
    SECTION 9.5  EXPENSES.  Whether or not the Merger is consummated, all costs
and expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such costs and
expenses, except as otherwise specifically provided for herein.
 
                                   ARTICLE X
                               GENERAL PROVISIONS
 
    SECTION 10.1  NON-SURVIVAL OF REPRESENTATIONS AND WARRANTIES.  The
respective representations, obligations, agreements and promises of the parties
contained in this Agreement and in any schedule, certificate or other document
delivered pursuant to this Agreement, other than those that by their terms are
to be performed or otherwise are to apply after the Effective Time, shall
terminate as of, and shall not survive, the Effective Time.
 
    SECTION 10.2  NOTICES.  All notices and other communications hereunder shall
be in writing and shall be deemed given if delivered personally (effective upon
delivery), mailed by registered or certified mail (return receipt requested)
(effective three business days after mailing), sent by a reputable overnight
courier service for next business day delivery (effective the next business day)
or sent via facsimile (effective upon receipt of the telecopy in complete,
readable form) to the parties at the following addresses (or at such other
address for a party as shall be specified by like notice):
 
                                      B-28
<PAGE>
    (a) If to Unity to:
 
       Unity First Acquisition Corp.
       245 Fifth Avenue
       New York, New York 10016
       Attention: President
       FAX: (212) 582-3293
       with a copy to:
       Cooperman Levitt Winikoff Lester & Newman, P.C.
       800 Third Avenue
       New York, New York 10022
       Attention: Ira I. Roxland, Esq.
       FAX: (212) 755-2839
 
    (b) If to the Company, to:
 
       GraphOn Corporation
       150 Harrison Avenue
       Campbell, California 95008
       Attention: President
       FAX: (408) 370-5037
 
       with a copy to:
       Brobeck, Phleger & Harrison LLP
       Two Embarcadero Place
       2200 Geng Road
       Palo Alto, California 94303
       Attention: Curtis L. Mo, Esq. and
                Michael F. Cyran, Esq.
                FAX: (650) 496-2885
 
    SECTION 10.3  INTERPRETATION.  The headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.
 
    SECTION 10.4  MISCELLANEOUS.  This Agreement (including the documents and
instruments referred to herein) (i) constitutes the entire agreement and
supersedes all other prior agreements and understandings, both written and oral,
among the parties, or any of them, with respect to the subject matter hereof
(including without limitation that certain letter of intent dated December 10,
1998 between Unity and the Company);(ii) shall not be assigned by contract,
operation of law or otherwise, and any attempt to do so shall be void; and (iii)
shall be governed in all respects, including validity, interpretation and
effect, by the laws of the State of New York (without giving effect to the
provisions thereof relating to conflicts of law).
 
    SECTION 10.5  COUNTERPARTS.  This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
shall constitute one and the same agreement. In pleading or proving this
Agreement, it shall not be necessary to produce or account for more than one
fully executed original.
 
    SECTION 10.6  PARTIES IN INTEREST.  This Agreement shall be binding upon and
inure solely to the benefit of each party hereto, and nothing in this Agreement,
express or implied, is intended to confer upon any other person any rights or
remedies of any nature whatsoever under or by reason of this Agreement.
 
                                      B-29
<PAGE>
    SECTION 10.7  CAPTIONS.  The captions of sections and subsections of this
Agreement are for reference only, and shall not affect the interpretation or
construction of this Agreement.
 
    IN WITNESS WHEREOF, Unity and the Company have caused this Agreement to be
signed by their respective officers thereunto duly authorized as of the date
first written above.
 
<TABLE>
<S>                                          <C>        <C>
                                             UNITY FIRST ACQUISITION CORP.
 
                                             By:        /s/ LAWRENCE BURSTEIN
                                                        ------------------------------------------
                                                        Name: Lawrence Burstein
                                                        Title: President
 
                                             GRAPHON CORPORATION
 
                                             By:        /s/ WALTER KELLER
                                                        ------------------------------------------
                                                        Name: Walter Keller
                                                        Title: President
</TABLE>
 
                                      B-30
<PAGE>
                                                                       EXHIBIT C
 
              SECTION 262 OF THE DELAWARE GENERAL CORPORATION LAW
                          SECTION 262 APPRAISAL RIGHTS
 
    (a) Any stockholder of a corporation of this State who holds shares of stock
on the date of the making of a demand pursuant to subsection (d) of this section
with respect to such shares, who continuously holds such shares through the
effective date of the merger or consolidation, who has otherwise complied with
subsection (d) of this section and who has neither voted in favor of the merger
or consolidation nor consented thereto in writing pursuant to Section 228 of
this title shall be entitled to an appraisal by the Court of Chancery of the
fair value of the stockholder's shares of stock under the circumstances
described in subsections (b) and (c) of this section. As used in this section,
the word "stockholder" means a holder of record of stock in a stock corporation
and also a member of record of a nonstock corporation; the words "stock" and
"share" mean and include what is ordinarily meant by those words and also
membership or membership interest of a member of a nonstock corporation; and the
words "depository receipt" mean a receipt or other instrument issued by a
depository representing an interest in one or more shares, or fractions thereof,
solely of stock of a corporation, which stock is deposited with the depository.
 
    (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to Section 251 (other than a merger effected pursuant to
Section 251(g) of this title), Section 252, Section 254, Section 257, Section
258, Section 263 or Section 264 of this title:
 
        (1) Provided, however, that no appraisal rights under this section shall
    be available for the shares of any class or series of stock, which stock, or
    depository receipts in respect thereof, at the record date fixed to
    determine the stockholders entitled to receive notice of and to vote at the
    meeting of stockholders to act upon the agreement of merger or
    consolidation, were either (i) listed on a national securities exchange or
    designated as a national market system security on an interdealer quotation
    system by the National Association of Securities Dealers, Inc. or (ii) held
    of record by more than 2,000 holders; and further provided that no appraisal
    rights shall be available for any shares of stock of the constituent
    corporation surviving a merger if the merger did not require for its
    approval the vote of the stockholders of the surviving corporation as
    provided in subsection (f) of Section 251 of this title.
 
        (2) Notwithstanding paragraph (1) of this subsection, appraisal rights
    under this section shall be available for the shares of any class or series
    of stock of a constituent corporation if the holders thereof are required by
    the terms of an agreement of merger or consolidation pursuant to
    SectionSection251, 252, 254, 257, 258, 263 and 264 of this title to accept
    for such stock anything except:
 
           a.  Shares of stock of the corporation surviving or resulting from
       such merger or consolidation, or depository receipts in respect thereof;
 
           b.  Shares of stock of any other corporation, or depository receipts
       in respect thereof, which shares of stock (or depository receipts in
       respect thereof) or depository receipts at the effective date of the
       merger or consolidation will be either listed on a national securities
       exchange or designated as a national market system security on an
       interdealer quotation system by the National Association of Securities
       Dealers, Inc. or held of record by more than 2,000 holders;
 
           c.  Cash in lieu of fractional shares or fractional depository
       receipts described in the foregoing subparagraphs a. and b. of this
       paragraph; or
 
           d.  Any combination of the shares of stock, depository receipts and
       cash in lieu of fractional shares or fractional depository receipts
       described in the foregoing subparagraphs a., b. and c. of this paragraph.
 
                                      C-1
<PAGE>
        (3) In the event all of the stock of a subsidiary Delaware corporation
    party to a merger effected under Section 253 of this title is not owned by
    the parent corporation immediately prior to the merger, appraisal rights
    shall be available for the shares of the subsidiary Delaware corporation.
 
    (c) Any corporation may provide in its certificate of incorporation that
appraisal rights under this section shall be available for the shares of any
class or series of its stock as a result of an amendment to its certificate of
incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets of
the corporation. If the certificate of incorporation contains such a provision,
the procedures of this section, including those set forth in subsections (d) and
(e) of this section, shall apply as nearly as is practicable.
 
    (d) Appraisal rights shall be perfected as follows:
 
        (1) If a proposed merger or consolidation for which appraisal rights are
    provided under this section is to be submitted for approval at a meeting of
    stockholders, the corporation, not less than 20 days prior to the meeting,
    shall notify each of its stockholders who was such on the record date for
    such meeting with respect to shares for which appraisal rights are available
    pursuant to subsections (b) or (c) hereof that appraisal rights are
    available for any or all of the shares of the constituent corporations, and
    shall include in such notice a copy of this section. Each stockholder
    electing to demand the appraisal of such stockholder's shares shall deliver
    to the corporation, before the taking of the vote on the merger or
    consolidation, a written demand for appraisal of such stockholder's shares.
    Such demand will be sufficient if it reasonably informs the corporation of
    the identity of the stockholder and that the stockholder intends thereby to
    demand the appraisal of such stockholder's shares. A proxy or vote against
    the merger or consolidation shall not constitute such a demand. A
    stockholder electing to take such action must do so by a separate written
    demand as herein provided. Within 10 days after the effective date of such
    merger or consolidation, the surviving or resulting corporation shall notify
    each stockholder of each constituent corporation who has complied with this
    subsection and has not voted in favor of or consented to the merger or
    consolidation of the date that the merger or consolidation has become
    effective; or
 
        (2) If the merger or consolidation was approved pursuant to Section 228
    or Section 253 of this title, each constituent corporation, either before
    the effective date of the merger or consolidation or within 10 days
    thereafter, shall notify each of the holders of any class or series of stock
    of such constituent corporation who are entitled to appraisal rights of the
    approval of the merger or consolidation and that appraisal rights are
    available for any or all of the shares of such class or series of stock of
    such constituent corporation, and shall include in such notice a copy of
    this section; provided that, if the notice is given on or after the
    effective date of the merger or consolidation, such notice shall be given by
    the surviving or resulting corporation to all such holders of any class or
    series of stock of a constituent corporation that are entitled to appraisal
    rights. Such notice may, and, if given on or after the effective date of the
    merger or consolidation, shall, also notify such stockholders of the
    effective date of merger or consolidation. Any stockholder entitled to
    appraisal rights may, within 20 days after the date of mailing of such
    notice, demand in writing from the surviving or resulting corporation the
    appraisal of such holder's shares. Such demand will be sufficient if it
    reasonably informs the corporation of the identity of the stockholder and
    that the stockholder intends thereby to demand the appraisal of such
    holder's shares. If such notice did not notify stockholders of the effective
    date of the merger or consolidation, either (i) each such constituent
    corporation shall send a second notice before the effective date of the
    merger or consolidation notifying each of the holders of any class or series
    of stock of such constituent corporation that are entitled to appraisal
    rights of the effective date of the merger or consolidation or (ii) the
    surviving or resulting corporation shall send such a second notice to all
    such holders on or within 10 days after such effective date; provided,
    however, that if such second notice is sent more than 20 days following the
    sending of the first notice, such second notice need only be sent to each
    stockholder who is entitled to appraisal rights and who has demanded
    appraisal of such holder's shares in accordance with this subsection. An
    affidavit of the secretary or
 
                                      C-2
<PAGE>
    assistant secretary or of the transfer agent of the corporation that is
    required to give either notice that such notice has been given shall, in the
    absence of fraud, be prima facie evidence of the facts stated therein. For
    purposes of determining the stockholders entitled to receive either notice,
    each constituent corporation may fix, in advance, a record date that shall
    be not more than 10 days prior to the date the notice is given, provided,
    that if the notice is given on or after the effective date of the merger or
    consolidation, the record date shall be such effective date. If no record
    date is fixed and the notice is given prior to the effective date, the
    record date shall be the close of business on the day next preceding the day
    on which the notice is given.
 
    (e) Within 120 days after the effective date of the merger or consolidation,
the surviving or resulting corporation or any stockholder who has complied with
subsections (a) and (d) hereof and who is otherwise entitled to appraisal
rights, may file a petition in the Court of Chancery demanding a determination
of the value of the stock of all such stockholders. Notwithstanding the
foregoing, at any time within 60 days after the effective date of the merger or
consolidation, any stockholder shall have the right to withdraw such
stockholder's demand for appraisal and to accept the terms offered upon the
merger or consolidation. Within 120 days after the effective date of the merger
or consolidation, any stockholder who has complied with the requirements of
subsections (a) and (d) hereof, upon written request, shall be entitled to
receive from the corporation surviving the merger or resulting from the
consolidation a statement setting forth the aggregate number of shares not voted
in favor of the merger or consolidation and with respect to which demands for
appraisal have been received and the aggregate number of holders of such shares.
Such written statement shall be mailed to the stockholder within 10 days after
such stockholder's written request for such a statement is received by the
surviving or resulting corporation or within 10 days after expiration of the
period for delivery of demands for appraisal under subsection (d) hereof,
whichever is later.
 
    (f) Upon the filing of any such petition by a stockholder, service of a copy
thereof shall be made upon the surviving or resulting corporation, which shall
within 20 days after such service file in the office of the Register in Chancery
in which the petition was filed a duly verified list containing the names and
addresses of all stockholders who have demanded payment for their shares and
with whom agreements as to the value of their shares have not been reached by
the surviving or resulting corporation. If the petition shall be filed by the
surviving or resulting corporation, the petition shall be accompanied by such a
duly verified list. The Register in Chancery, if so ordered by the Court, shall
give notice of the time and place fixed for the hearing of such petition by
registered or certified mail to the surviving or resulting corporation and to
the stockholders shown on the list at the addresses therein stated. Such notice
shall also be given by 1 or more publications at least 1 week before the day of
the hearing, in a newspaper of general circulation published in the City of
Wilmington, Delaware or such publication as the Court deems advisable. The forms
of the notices by mail and by publication shall be approved by the Court, and
the costs thereof shall be borne by the surviving or resulting corporation.
 
    (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled to
appraisal rights. The Court may require the stockholders who have demanded an
appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as to
such stockholder.
 
    (h) After determining the stockholders entitled to an appraisal, the Court
shall appraise the shares, determining their fair value exclusive of any element
of value arising from the accomplishment or expectation of the merger or
consolidation, together with a fair rate of interest, if any, to be paid upon
the amount determined to be the fair value. In determining such fair value, the
Court shall take into account all relevant factors. In determining the fair rate
of interest, the Court may consider all relevant factors, including the rate of
interest which the surviving or resulting corporation would have had to pay to
borrow money during the pendency of the proceeding. Upon application by the
surviving or resulting corporation or by any stockholder entitled to participate
in the appraisal proceeding, the Court may, in its discretion,
 
                                      C-3
<PAGE>
permit discovery or other pretrial proceedings and may proceed to trial upon the
appraisal prior to the final determination of the stockholder entitled to an
appraisal. Any stockholder whose name appears on the list filed by the surviving
or resulting corporation pursuant to subsection (f) of this section and who has
submitted such stockholder's certificates of stock to the Register in Chancery,
if such is required, may participate fully in all proceedings until it is
finally determined that such stockholder is not entitled to appraisal rights
under this section.
 
    (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to the
stockholders entitled thereto. Interest may be simple or compound, as the Court
may direct. Payment shall be so made to each such stockholder, in the case of
holders of uncertificated stock forthwith, and the case of holders of shares
represented by certificates upon the surrender to the corporation of the
certificates representing such stock. The Court's decree may be enforced as
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.
 
    (j) The costs of the proceeding may be determined by the Court and taxed
upon the parties as the Court deems equitable in the circumstances. Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.
 
    (k) From and after the effective date of the merger or consolidation, no
       stockholder who has demanded appraisal rights as provided in subsection
       (d) of this section shall be entitled to vote such stock for any purpose
       or to receive payment of dividends or other distributions on the stock
       (except dividends or other distributions payable to stockholders of
       record at a date which is prior to the effective date of the merger or
       consolidation); provided, however, that if no petition for an appraisal
       shall be filed within the time provided in subsection (e) of this
       section, or if such stockholder shall deliver to the surviving or
       resulting corporation a written withdrawal of such stockholder's demand
       for an appraisal and an acceptance of the merger or consolidation, either
       within 60 days after the effective date of the merger or consolidation as
       provided in subsection (e) of this section or thereafter with the written
       approval of the corporation, then the right of such stockholder to an
       appraisal shall cease. Notwithstanding the foregoing, no appraisal
       proceeding in the Court of Chancery shall be dismissed as to any
       stockholder without the approval of the Court, and such approval may be
       conditioned upon such terms as the Court deems just.
 
    (l) The shares of the surviving or resulting corporation to which the shares
of such objecting stockholders would have been converted had they assented to
the merger or consolidation shall have the status of authorized and unissued
shares of the surviving or resulting corporation.
 
                                      C-4
<PAGE>
                                                                       EXHIBIT D
 
            SECTIONS 1300 - 1312 OF THE CALIFORNIA CORPORATIONS CODE
 
SECTION 1300. REORGANIZATION OR SHORT-FORM MERGER; DISSENTING SHARES; CORPORATE
  PURCHASE AT FAIR MARKET VALUE; DEFINITIONS
 
    (a) If the approval of the outstanding shares (Section 152) of a corporation
is required for a reorganization under subdivisions (a) and (b) or subdivision
(e) or (f) of Section 1201, each shareholder of the corporation entitled to vote
on the transaction and each shareholder of a subsidiary corporation in a
short-form merger may, by complying with this chapter, require the corporation
in which the shareholder holds shares to purchase for cash at their fair market
value the shares owned by the shareholder which are dissenting shares as defined
in subdivision (b). The fair market value shall be determined as of the day
before the first announcement of the terms of the proposed reorganization or
short-form merger, excluding any appreciation or depreciation in consequence of
the proposed action, but adjusted for any stock split, reverse stock split, or
share dividend which becomes effective thereafter.
 
    (b) As used in this chapter, "dissenting shares" means shares which come
within all of the following descriptions:
 
        (1) Which were not immediately prior to the reorganization or short-form
    merger either (A) listed on any national securities exchange certified by
    the Commissioner of Corporations under subdivision (o) of Section 25100 or
    (B) listed on the list of OTC margin stocks issued by the Board of Governors
    of the Federal Reserve System, and the notice of meeting of shareholders to
    act upon the reorganization summarizes this section and Sections 1301, 1302,
    1303 and 1304; provided, however, that this provision does not apply to any
    shares with respect to which there exists any restriction on transfer
    imposed by the corporation or by any law or regulation; and provided,
    further, that this provision does not apply to any class of shares described
    in SUBPARAGRAPH (A) or (B) if demands for payment are filed with respect to
    5 percent or more of the outstanding shares of that class.
 
        (2) Which were outstanding on the date for the determination of
    shareholders entitled to vote on the reorganization and (A) were not voted
    in favor of the reorganization or, (B) if described in SUBPARAGRAPH (A) or
    (B) of paragraph (1) (without regard to the provisos in that paragraph),
    were voted against the reorganization, or which were held of record on the
    effective date of a short-form merger; provided, however, that ***
    SUBPARAGRAPH (A) rather than *** SUBPARAGRAPH (B) of this paragraph applies
    in any case where the approval required by Section 1201 is sought by written
    consent rather than at a meeting.
 
        (3) Which the dissenting shareholder has demanded that the corporation
    purchase at their fair market value, in accordance with Section 1301.
 
        (4) Which the dissenting shareholder has submitted for endorsement, in
    accordance with Section 1302.
 
        (c) As used in this chapter, "dissenting shareholder" means the
    recordholder of dissenting shares and includes a transferee of record.
 
SECTION 1301. NOTICE TO HOLDERS OF DISSENTING SHARES IN REORGANIZATIONS; DEMAND
  FOR PURCHASE; TIME; CONTENTS
 
    (a) If, in the case of a reorganization, any shareholders of a corporation
have a right under Section 1300, subject to compliance with paragraphs (3) and
(4) of subdivision (b) thereof, to require the corporation to purchase their
shares for cash, such corporation shall mail to each such shareholder a notice
of the approval of the reorganization by its outstanding shares (Section 152)
within 10 days after the date of such approval, accompanied by a copy of
Sections 1300, 1302, 1303, 1304 and this section, a statement of
 
                                      D-1
<PAGE>
the price determined by the corporation to represent the fair market value of
the dissenting shares, and a brief description of the procedure to be followed
if the shareholder desires to exercise the shareholder's right under such
sections. The statement of price constitutes an offer by the corporation to
purchase at the price stated any dissenting shares as defined in subdivision (b)
of Section 1300, unless they lose their status as dissenting shares under
Section 1309.
 
    (b) Any shareholder who has a right to require the corporation to purchase
the shareholder's shares for cash under Section 1300, subject to compliance with
paragraphs (3) and (4) of subdivision (b) thereof, and who desires the
corporation to purchase such shares shall make written demand upon the
corporation for the purchase of such shares and payment to the shareholder in
cash of their fair market value. The demand is not effective for any purpose
unless it is received by the corporation or any transfer agent thereof (1) in
the case of shares described in clause (i) or (ii) of paragraph (1) of
subdivision (b) of Section 1300 (without regard to the provisos in that
paragraph), not later than the date of the shareholders' meeting to vote upon
the reorganization, or (2) in any other case within 30 days after the date on
which the notice of the approval by the outstanding shares pursuant to
subdivision (a) or the notice pursuant to subdivision (i) of Section 1110 was
mailed to the shareholder.
 
    (c) The demand shall state the number and class of the shares held of record
by the shareholder which the shareholder demands that the corporation purchase
and shall contain a statement of what such shareholder claims to be the fair
market value of those shares as of the day before the announcement of the
proposed reorganization or short-form merger. The statement of fair market value
constitutes an offer by the shareholder to sell the shares at such price.
 
SECTION 1302. SUBMISSION OF SHARES CERTIFICATES FOR ENDORSEMENT; UNCERTIFICATED
  SECURITIES
 
    Within 30 days after the date on which notice of the approval by the
outstanding shares or the notice pursuant to subdivision (i) of Section 1110 was
mailed to the shareholder, the shareholder shall submit to the corporation at
its principal office or at the office of any transfer agent thereof, (A) IF THE
SHARES ARE CERTIFICATED SECURITIES, the shareholder's certificates representing
any shares which the shareholder demands that the corporation purchase, to be
stamped or endorsed with a statement that the shares are dissenting shares or to
be exchanged for certificates of appropriate denomination so stamped or endorsed
OR (B) IF THE SHARES ARE UNCERTIFICATED SECURITIES, WRITTEN NOTICE OF THE NUMBER
OF SHARES WHICH THE SHAREHOLDER DEMANDS THAT THE CORPORATION PURCHASE. Upon
subsequent transfers of the dissenting shares on the books of the corporation,
the new certificates, initial transaction statement, and other written
statements issued therefor shall bear a like statement, together with the name
of the original dissenting holder of the shares.
 
SECTION 1303. PAYMENT OF AGREED PRICE WITH INTEREST; AGREEMENT FIXING FAIR
  MARKET VALUE; FILING; TIME OF PAYMENT
 
    (a) If the corporation and the shareholder agree that the shares are
dissenting shares and agree upon the price of the shares, the dissenting
shareholder is entitled to the agreed price with interest thereon at the legal
rate on judgments from the date of the agreement. Any agreements fixing the fair
market value of any dissenting shares as between the corporation and the holders
thereof shall be filed with the secretary of the corporation.
 
    (b) Subject to the provisions of Section 1306, payment of the fair market
value of dissenting shares shall be made within 30 days after the amount thereof
has been agreed or within 30 days after any statutory or contractual conditions
to the reorganization are satisfied, whichever is later, and in the case of
certificated securities, subject to surrender of the certificates therefor,
unless provided otherwise by agreement.
 
                                      D-2
<PAGE>
SECTION 1304. ACTION TO DETERMINE WHETHER SHARES ARE DISSENTING SHARES OR FAIR
  MARKET VALUE; LIMITATION; JOINDER; CONSOLIDATION; DETERMINATION OF ISSUES;
  APPOINTMENT OF APPRAISERS
 
    (a) If the corporation denies that the shares are dissenting shares, or the
corporation and the shareholder fail to agree upon the fair market value of the
shares, then the shareholder demanding purchase of such shares as dissenting
shares or any interested corporation, within six months after the date on which
notice of the approval by the outstanding shares (Section 152) or notice
pursuant to subdivision (i) of Section 1110 was mailed to the shareholder, but
not thereafter, may file a complaint in the superior court of the proper county
praying the court to determine whether the shares are dissenting shares or the
fair market value of the dissenting shares or both or may intervene in any
action pending on such a complaint.
 
    (b) Two or more dissenting shareholders may join as plaintiffs or be joined
as defendants in any such action and two or more such actions may be
consolidated.
 
    (c) On the trial of the action, the court shall determine the issues. If the
status of the shares as dissenting shares is in issue, the court shall first
determine that issue. If the fair market value of the dissenting shares is in
issue, the court shall determine, or shall appoint one or more impartial
appraisers to determine, the fair market value of the shares.
 
SECTION 1305. REPORT OF APPRAISERS; CONFIRMATION; DETERMINATION BY COURT;
  JUDGEMENT; PAYMENT; APPEAL; COSTS
 
    (a) If the court appoints an appraiser or appraisers, they shall proceed
forthwith to determine the fair market value per share. Within the time fixed by
the court, the appraisers, or a majority of them, shall make and file a report
in the office of the clerk of the court. Thereupon, on the motion of any party,
the report shall be submitted to the court and considered on such evidence as
the court considers relevant. If the court finds the report reasonable, the
court may confirm it.
 
    (b) If a majority of the appraisers appointed fail to make and file a report
within 10 days from the date of their appointment or within such further time as
may be allowed by the court or the report is not confirmed by the court, the
court shall determine the fair market value of the dissenting shares.
 
    (c) Subject to the provisions of Section 1306, judgment shall be rendered
against the corporation for payment of an amount equal to the fair market value
of each dissenting share multiplied by the number of dissenting shares which any
dissenting shareholder who is a party, or who has intervened, is entitled to
require the corporation to purchase, with interest thereon at the legal rate
from the date on which judgment was entered.
 
    (d) Any such judgment shall be payable forthwith with respect to
uncertificated securities and, with respect to certificated securities, only
upon the endorsement and delivery to the corporation of the certificates for the
shares described in the judgment. Any party may appeal from the judgment.
 
    (e) The costs of the action, including reasonable compensation to the
appraisers to be fixed by the court, shall be assessed or apportioned as the
court considers equitable, but, if the appraisal exceeds the price offered by
the corporation, the corporation shall pay the costs (including in the
discretion of the court attorneys' fees, fees of expert witnesses and interest
at the legal rate on judgments from the date of compliance with Sections 1300,
1301 and 1302 if the value awarded by the court for the shares is more than 125
percent of the price offered by the corporation under subdivision (a) of Section
1301).
 
SECTION 1306. PREVENTION OF IMMEDIATE PAYMENT; STATUS AS CREDITORS; INTEREST
 
    To the extent that the provisions of Chapter 5 prevent the payment to any
holders of dissenting shares of their fair market value, they shall become
creditors of the corporation for the amount thereof together
 
                                      D-3
<PAGE>
with interest at the legal rate on judgments until the date of payment, but
subordinate to all other creditors in any liquidation proceeding, such debt to
be payable when permissible under the provisions of Chapter 5.
 
SECTION 1307. DIVIDENDS ON DISSENTING SHARES
 
    Cash dividends declared and paid by the corporation upon the dissenting
shares after the date of approval of the reorganization by the outstanding
shares (Section 152) and prior to payment for the shares by the corporation
shall be credited against the total amount to be paid by the corporation
therefor.
 
SECTION 1308. RIGHTS OF DISSENTING SHAREHOLDERS PENDING VALUATION; WITHDRAWAL OF
  DEMAND FOR PAYMENT
 
    Except as expressly limited in this chapter, holders of dissenting shares
continue to have all the rights and privileges incident to their shares, until
the fair market value of their shares is agreed upon or determined. A dissenting
shareholder may not withdraw a demand for payment unless the corporation
consents thereto.
 
SECTION 1309. TERMINATION OF DISSENTING SHARE AND SHAREHOLDER STATUS
 
    Dissenting shares lose their status as dissenting shares and the holders
thereof cease to be dissenting shareholders and cease to be entitled to require
the corporation to purchase their shares upon the happening of any of the
following:
 
    (a) The corporation abandons the reorganization. Upon abandonment of the
reorganization, the corporation shall pay on demand to any dissenting
shareholder who has initiated proceedings in good faith under this chapter all
necessary expenses incurred in such proceedings and reasonable attorneys' fees.
 
    (b) The shares are transferred prior to their submission for endorsement in
accordance with Section 1302 or are surrendered for conversion into shares of
another class in accordance with the articles.
 
    (c) The dissenting shareholder and the corporation do not agree upon the
status of the shares as dissenting shares or upon the purchase price of the
shares, and neither files a complaint or intervenes in a pending action as
provided in Section 1304, within six months after the date on which notice of
the approval by the outstanding shares or notice pursuant to subdivision (i) of
Section 1110 was mailed to the shareholder.
 
    (d) The dissenting shareholder, with the consent of the corporation,
withdraws the shareholder's demand for purchase of the dissenting shares.
 
SECTION 1310. SUSPENSION OF RIGHTS TO COMPENSATION OR VALUATION PROCEEDINGS;
  LITIGATION OF SHAREHOLDERS' APPROVAL
 
    If litigation is instituted to test the sufficiency or regularity of the
votes of the shareholders in authorizing a reorganization, any proceedings under
Sections 1304 and 1305 shall be suspended until final determination of such
litigation.
 
SECTION 1311. EXEMPT SHARES
 
    This chapter, except Section 1312, does not apply to classes of shares whose
terms and provisions specifically set forth the amount to be paid in respect to
such shares in the event of a reorganization or merger.
 
                                      D-4
<PAGE>
SECTION 1312. RIGHT OF DISSENTING SHAREHOLDER TO ATTACK, SET ASIDE OR RESCIND
  MERGER OR REORGANIZATION; RESTRAINING ORDER OR INJUNCTION; CONDITIONS.
 
    (a) No shareholder of a corporation who has a right under this chapter to
demand payment of cash for the shares held by the shareholder shall have any
right at law or in equity to attack the validity of the reorganization or
short-form merger, or to have the reorganization or short-form merger set aside
or rescinded, except in an action to test whether the number of shares required
to authorize or approve the reorganization have been legally voted in favor
thereof; but any holder of shares of a class whose terms and provisions
specifically set forth the amount to be paid in respect to them in the event of
a reorganization or short-form merger is entitled to payment in accordance with
those terms and provisions or, if the principal terms of the reorganization are
approved pursuant to subdivision (b) of Section 1202, is entitled to payment in
accordance with the terms and provisions of the approved reorganization.
 
    (b) If one of the parties to a reorganization or short-form merger is
directly or indirectly controlled by, or under common control with, another
party to the reorganization or short-form merger, subdivision (a) shall not
apply to any shareholder of such party who has not demanded payment of cash for
such shareholder's shares pursuant to this chapter; but if the shareholder
institutes any action to attack the validity of the reorganization or short-form
merger or to have the reorganization or short-form merger set aside or
rescinded, the shareholder shall not thereafter have any right to demand payment
of cash for the shareholder's shares pursuant to this chapter. The court in any
action attacking the validity of the reorganization or short-form merger or to
have the reorganization or short-form merger set aside or rescinded shall not
restrain or enjoin the consummation of the transaction except upon 10 days'
prior notice to the corporation and upon a determination by the court that
clearly no other remedy will adequately protect the complaining shareholder or
the class of shareholders of which such shareholder is a member.
 
    (c) If one of the parties to a reorganization or short-form merger is
directly or indirectly controlled by, or under common control with, another
party to the reorganization or short-form merger, in any action to attack the
validity of the reorganization or short-form merger or to have the
reorganization or short-form merger set aside or rescinded, (1) a party to a
reorganization or short-form merger which controls another party to the
reorganization or short-form merger shall have the burden of proving that the
transaction is just and reasonable as to the shareholders of the controlled
party, and (2) a person who controls two or more parties to a reorganization
shall have the burden of proving that the transaction is just and reasonable as
to the shareholders of any party so controlled.
 
                                      D-5
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    Article SIXTH of the Restated Certificate of Incorporation of Unity First
Acquisition Corp. (the "registrant") provides with respect to the
indemnification of directors and officers that the registrant shall indemnify to
the fullest extent permitted by Sections 102(b)(7) and 145 of the Delaware
General Corporation Law, as amended from time to time, each person that such
Sections grant the registrant the power to indemnify. Article SIXTH of the
Restated Certificate of Incorporation of the registrant also provides that no
director shall be liable to the registrant or any of its stockholders for
monetary damages for breach of fiduciary duty as a director, except with respect
to (1) a breach of the director's duty of loyalty to the registrant or its
stockholders, (2) acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, (3) liability under
Section 174 of the Delaware General Corporation Law or (4) a transaction from
which the director derived an improper personal benefit, it being the intention
of the foregoing provision to eliminate the liability of the registrant's
directors to the registrant or its stockholders to the fullest extent permitted
by Section 102(b)(7) of Delaware General Corporation Law, as amended from time
to time.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENTS SCHEDULES.
 
    (a) Exhibits
 
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER     DESCRIPTION OF EXHIBIT
- -----------  -------------------------------------------------------------------------------------------------------
<C>          <S>
 
       2.1   Agreement and Plan of Merger and Reorganization dated as of February 1, 1999, between Registrant and
             GraphOn Corporation (included as Exhibit B to the joint proxy statement/ prospectus which forms a part
             of this Registration Statement (the "Prospectus"))
 
       3.1   Restated Certificate of Incorporation of Registrant (1)
 
       3.2   Bylaws of Registrant (1)
 
       3.3   Second Amended and Restated Articles of Incorporation of GraphOn
 
       3.4   Amended and Restated Bylaws of GraphOn
 
       4.1   Form of certificate evidencing shares of common stock of Registrant (1)
 
       4.2   Form of certificate evidencing Class A Redeemable Warrants of Registrant (1)
 
       4.3   Form of certificate evidencing Class B Redeemable Warrants of Registrant (1)
 
       4.4   Warrant Agreement dated November 12, 1996 between Registrant and GKN Securities Corp. and Gaines,
             Berland, Inc.(1)
 
       4.5   Redeemable Warrant Agreement dated November 12, 1996 between Registrant and American Stock Transfer &
             Trust Company(1)
 
       4.6   Registration Rights Agreement dated October 28, 1998 between GraphOn, Spencer Trask Investors, Walter
             Keller and the investors purchasing units in GraphOn's private placement.
 
       4.7   Amendment to Registration Rights Agreement(2)
 
       5.1   Opinion of Cooperman Levitt Winikoff Lester & Newman, P.C.(2)
 
       8.1   Opinion of Cooperman Levitt Winikoff Lester & Newman, P.C. with respect to certain Federal income tax
             aspects attendant to the merger(2)
</TABLE>
 
                                      II-1
<PAGE>
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER     DESCRIPTION OF EXHIBIT
- -----------  -------------------------------------------------------------------------------------------------------
<C>          <S>
       8.2   Opinion of Brobeck, Phleger & Harrison LLP with respect to certain Federal income tax aspects attendant
             to the merger (2)
 
      10.1   1996 Stock Option Plan of Registrant(1)
 
      10.2   1998 Stock Option/Stock Issuance Plan of GraphOn
 
      10.3   Placement Agency Agreement by and between GraphOn and Spencer Trask Securities, Inc., dated as of
             September 2, 1998
 
      10.4   Asset Purchase Agreement by and among GraphOn, Corel Corporation, Corel Corporation Limited and Corel,
             Inc. (collectively, "Corel"), dated as of December 18, 1998
 
      10.5   Securities Purchase Agreement by and among GraphOn and Corel, dated as of December 18, 1998
 
      10.6   Standard Industrial Lease between GraphOn and Mildred K. Dibona, dated April 14, 1995, as amended on
             October 2, 1998 (2)
 
      10.7   Hidden Valley Office Park Lease Agreement between GraphOn and ASA Properties, Inc., dated June 5, 1998
 
      10.8   Lease Agreement between Corel Inc. and CML Realty Corp., dated September, 1998 and assumed by GraphOn
             on December 31, 1998.
 
      23.1   Consent of Arthur Andersen LLP
 
      23.2   Consent of BDO Seidman, LLP
 
      23.3   Consent of Cooperman Levitt Winikoff Lester & Newman, P.C. (to be included in Exhibits 5.1 and 8.1)
 
      23.4   Consent of Richards, Layton & Finger, P.A. (2)
 
      23.5   Consent of Brobeck, Phleger & Harrison LLP (to be included in Exhibit 8.2)
 
      23.6   Consent of Walter Keller (2)
 
      23.7   Consent of Thomas A. Bevilaqua (2)
 
      24.1   Power of Attorney (included on the Signature Page of Part II of this Registration Statement)
 
      99.1   Form of Proxy of Registrant
 
      99.2   Form of Proxy of GraphOn
</TABLE>
 
- ------------------------
 
(1) Incorporated by reference from Unity's Form S-1, file number 333-11165,
    filed with the SEC on August 30, 1996.
 
(2) To be filed by Amendment to this Registration Statement.
 
    (b) Financial Statement Schedules
 
        All schedules for which provision is made in the applicable accounting
        regulations of the Securities and Exchange Commission are not required
        under the related instructions or not applicable, and therefore have
        been omitted.
 
    (c) Item 4(b) Information
 
    Reference is made to Exhibit 99.1 to this Registration Statement.
 
                                      II-2
<PAGE>
ITEM 22. UNDERTAKINGS.
 
    (a) Registrant hereby undertakes as follows:
 
        (1) that prior to any public reoffering of the securities registered
    hereunder through use of a prospectus which is a part of this Registration
    Statement, by any person or party who is deemed to be an underwriter within
    the meaning of Rule 145(c), Registrant undertakes that such reoffering
    prospectus will contain the information called for by the applicable
    registration form with respect to reofferings by persons who may be deemed
    underwriters, in addition to the information called for by the other items
    of the applicable form; and
 
        (2) that every prospectus (i) that is filed pursuant to paragraph (1)
    immediately preceding, or (ii) that purports to meet the requirements of
    Section 10(a)(3) of the Securities Act of 1933, as amended (the "Securities
    Act"), and is used in connection with an offering of securities subject to
    Rule 415, will be filed as a part of an amendment to the Registration
    Statement and will not be used until such amendment is effective, and that,
    for purposes of determining any liability under the Securities Act, each
    such post-effective amendment shall be deemed to be a new registration
    statement relating to the securities offered therein, and the offering of
    such securities at that time shall be deemed to be the initial bona fide
    offering thereof.
 
    (b) The Registrant hereby undertakes to respond to requests for information
that is incorporated by reference into the joint proxy statement/prospectus
pursuant to Item 4 of this form, within one business day of receipt of such
request, and to send the incorporated documents by first class mail or other
equally prompt means. This includes information contained in documents filed
subsequent to the effective date of the Registration Statement through the date
of responding to the request.
 
    (c) The Registrant hereby undertakes to supply by means of a post-effective
amendment all information concerning a transaction, and GraphOn being acquired
involved therein, that was not the subject of and included in the Registration
Statement when it became effective.
 
    Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the questions whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
    Pursuant to the requirements of the Securities Act of 1933, the registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of New York, State of New
York, on the 14(th) day of April, 1999.
 
                                UNITY FIRST ACQUISITION CORP.
 
                                BY:       /S/ LAWRENCE BURSTEIN, PRESIDENT
                                     -----------------------------------------
                                            Lawrence Burstein, President
 
                               POWER OF ATTORNEY
 
    KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Lawrence Burstein and Norman Leben and each of
them, with full power to act without the other, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution
for him and in his name, place and stead, in any and all capacities, to sign any
and all amendments (including post-effective amendments) to this registration
statement, and to file the same, with all exhibits thereto, and other documents
in connection therewith, with the Securities and Exchange Commission, granting
unto said attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite or necessary
to be done in and about the premises, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them, or their or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.
 
    Pursuant to the requirements of the Securities Act of 1933, this Amendment
to the Registration Statement has been signed below by the following persons in
the capacities and on the dates indicated:
 
          SIGNATURE                        TITLE                    DATE
- ------------------------------  ---------------------------  -------------------
                                President and Director
    /s/ LAWRENCE BURSTEIN         (Principal Executive,
- ------------------------------    Financial and Accounting     April 14, 1999
      Lawrence Burstein           Officer)
       /s/ NORMAN LEBEN         Secretary and Director
- ------------------------------                                  April14, 1999
         Norman Leben
       /s/ JOHN CATTIER         Director
- ------------------------------                                 April 14, 1999
         John Cattier
      /s/ BARRY RIDINGS         Director
- ------------------------------                                 April 14, 1999
        Barry Ridings
 
                                      II-4

<PAGE>

                                                                     Exhibit 3.3

                           SECOND AMENDED AND RESTATED
                            ARTICLES OF INCORPORATION

                                       OF

                               GRAPHON CORPORATION


         The undersigned, Walter Keller and Robin Ford, hereby state that:

         ONE: They are the duly elected and acting President and Secretary,
respectively, of the Corporation.

         TWO: The Articles of Incorporation of the Corporation shall be amended
as and restated to read in full as follows:

         1. The name of this Corporation is GraphOn Corporation.

         2. The purpose of the Corporation is to engage in any lawful act or
activity for which a corporation may be organized under the General Corporation
Law of California other than the banking business, the trust company business or
the practice of a profession permitted to be incorporated by the California
Corporations Code.

         3. The Corporation is authorized to issue two classes of stock to be
designated, respectively, "Common Stock" and "Preferred Stock." The total number
of shares that the Corporation is authorized to issue is Fifty-Five Million
(55,000,000) shares. Fifty Million (50,000,000) shares shall be Common Stock, no
par value, and Five Million (5,000,000) shares shall be Preferred Stock, no par
value. Upon filing of the Second Amended and Restated Articles of Incorporation,
a Sixty -Thousand (60,000)-to-One (1) stock split will become effective as to
all outstanding capital stock of the Corporation.

                  The Preferred Stock may be issued from time to time in series.
The Board of Directors is hereby authorized to fix or alter the rights,
preferences, privileges and restrictions granted to or imposed upon any series
of Preferred Stock, and the number of shares constituting any such series and
the designation thereof, or of any of them. Subject to compliance with
applicable protective voting rights which may be granted to the Preferred Stock
or any series thereof in Certificates of Determination or the Corporation's
Articles of Incorporation ("Protective Provisions"), but notwithstanding any
other rights of the Preferred Stock or any series thereof, the rights,
privileges, preferences and restrictions of any such series may be subordinated
to, PARI PASSU with (including, without limitation, inclusion in provisions with
respect to liquidation and acquisition preferences, redemption and/or approval
of matters by vote or written consent), or senior to any of those of any present
or future class or series of Preferred or Common Stock. Subject to compliance
with applicable Protective Provisions, the Board of Directors is also authorized
to increase or decrease the number of shares of any series, prior to or

                                       1
<PAGE>

subsequent to the issuance of shares of that series, but not below the number of
shares of such series then outstanding. In case the number of shares of any
series shall be so decreased, the shares constituting such decrease shall resume
the status which they had prior to the adoption of the resolution originally
fixing the number of shares of such series.

         4. (a) The liability of the directors of this Corporation for monetary
damages shall be eliminated to the fullest extent permitted under California
law.

                  (b) This Corporation is authorized to provide indemnification
of agents (as defined in Section 317 of the California Corporations Code)
through bylaw provisions, agreements with the agents, vote of shareholders or
disinterested directors or otherwise, in excess of the indemnification otherwise
permitted by Section 317 of the California Corporations Code, subject only to
applicable limits set forth in Section 204 of the California Corporations Code
with respect to actions for breach of duty to the Corporation and its
shareholders.

                                      * * *

         THREE: The foregoing amendment has been approved by the Board of
Directors of the Corporation.

         FOUR: The foregoing amendment was approved by the holders of the
requisite number of shares of the Corporation in accordance with Sections 902
and 903 of the California General Corporation Law; the total number of
outstanding shares of each class entitled to vote with respect to the foregoing
amendment was 100 shares of Common Stock, all of which voted in favor of the
foregoing amendment.













                                       2
<PAGE>

         The undersigned certify under penalty of perjury that they have read
the foregoing Second Amended and Restated Articles of Incorporation and know the
contents thereof, and that the statements therein are true.

         IN WITNESS WHEREOF, the undersigned have executed this certificate at
Campbell, California on June 23, 1998.



                                            -----------------------------------
                                                  Walter Keller, President


                                            -----------------------------------
                                                   Robin Ford, Secretary
















                                       3


<PAGE>

                                                                     Exhibit 3.4

                           AMENDED AND RESTATED BYLAWS

                                       OF

                               GRAPHON CORPORATION


                               ARTICLE I - OFFICES

                  Section 1. The principal executive office of GraphOn
Corporation (the "Corporation") shall be at such place inside or outside the
State of California as the Board of Directors may determine from time to time.

                  Section 2. The Corporation may also have offices at such other
places as the Board of Directors may from time to time designate, or as the
business of the Corporation may require.

                       ARTICLE II - SHAREHOLDERS' MEETINGS

                  Section 1. ANNUAL MEETINGS. The annual meeting of the
shareholders of the Corporation for the election of directors to succeed those
whose terms expire and for the transaction of such other business as may
properly come before the meeting shall be held at such place and at such time as
may be fixed from time to time by the Board of Directors and stated in the
notice of the meeting. If the annual meeting of the shareholders be not held as
herein prescribed, the election of directors may be held at any meeting
thereafter called pursuant to these Bylaws.

                  Section 2. SPECIAL MEETINGS. Special meetings of the
shareholders, for any purpose whatsoever, unless otherwise prescribed by
statute, may be called at any time by the Chairman of the Board, the President,
or by the Board of Directors, or by one or more shareholders holding not less
than ten percent of the voting power of the Corporation.

                  Section 3. PLACE. All meetings of the shareholders shall be at
any place within or without the State of California designated by the Board of
Directors or by written consent of all the persons entitled to vote thereat,
given either before or after the meeting. In the absence of any such
designation, shareholders' meetings shall be held at the principal executive
office of the Corporation.

                  Section 4. NOTICE. Notice of meetings of the shareholders of
the Corporation shall be given in writing to each shareholder entitled to vote,
either personally or by first-class mail (unless the Corporation has 500 or more
shareholders determined as provided by the California Corporations Code on the
record date for the meeting, in which case notice may be sent by third-class
mail) or other means of written communication, charges prepaid, addressed to the
shareholder at his address appearing on the books of the Corporation or given by
the shareholder to the Corporation for the purpose of notice. Notice of any such
meeting of 

<PAGE>

shareholders shall be sent to each shareholder entitled thereto not less than
ten (or, if sent by third-class mail, thirty) nor more than sixty days before
the meeting. Said notice shall state the place, date and hour of the meeting
and, (1) in the case of special meetings, the general nature of the business to
be transacted, and no other business may be transacted, or (2) in the case of
annual meetings, those matters which the Board of Directors, at the time of the
mailing of the notice, intends to present for action by the shareholders, but
subject to Section 601(f) of the California Corporations Code any proper matter
may be presented at the meeting for shareholder action, and (3) in the case of
any meeting at which directors are to be elected, the names of the nominees
intended at the time of the mailing of the notice to be presented by management
for election.

                  Section 5. ADJOURNED MEETINGS. Any shareholders' meeting may
be adjourned from time to time by the vote of the holders of a majority of the
voting shares present at the meeting either in person or by proxy. Notice of any
adjourned meeting need not be given unless a meeting is adjourned for forty-five
days or more from the date set for the original meeting.

                  Section 6. QUORUM. The presence in person or by proxy of the
persons entitled to vote a majority of the shares entitled to vote at any
meeting constitutes a quorum for the transaction of business. The shareholders
present at a duly called or held meeting at which a quorum is present may
continue to do business until adjournment, notwithstanding the withdrawal of
enough shareholders to leave less than a quorum, if any action taken (other than
adjournment) is approved by at least a majority of the shares required to
constitute a quorum.

                  In the absence of a quorum, any meeting of shareholders may be
adjourned from time to time by the vote of a majority of the shares, the holders
of which are either present in person or represented by proxy thereat, but no
other business may be transacted, except as provided above.

                  Section 7. SHAREHOLDER ACTION BY WRITTEN CONSENT. Any action
which may be taken at any meeting of shareholders may be taken without a meeting
and without prior notice, if a consent in writing, setting forth the action so
taken, shall be signed by the holders of outstanding shares having not less than
the minimum number of votes that would be necessary to authorize or take such
action at a meeting at which all shares entitled to vote thereon were present
and voted; provided, however, that (1) unless the consents of all shareholders
entitled to vote have been solicited in writing, notice of any shareholder
approval without a meeting by less than unanimous written consent shall be given
as required by the California Corporations Code, and (2) directors may not be
elected by written consent except by unanimous written consent of all shares
entitled to vote for the election of directors.

                  Any written consent may be revoked by a writing received by
the Secretary of the Corporation prior to the time that written consents of the
number of shares required to authorize the proposed action have been filed with
the Secretary.

                                       2
<PAGE>

                  Section 8. WAIVER OF NOTICE. The transactions of any meeting
of shareholders, however called and noticed, and whenever held, shall be as
valid as though had at a meeting duly held after regular call and notice, if a
quorum be present either in person or by proxy, and if, either before or after
the meeting, each of the persons entitled to vote, not present in person or by
proxy, signs a written waiver of notice, or a consent to the holding of the
meeting, or an approval of the minutes thereof. All such waivers, consents, or
approvals shall be filed with the corporate records or made a part of the
minutes of the meeting.

                  Section 9. VOTING. The voting at all meetings of shareholders
need not be by ballot, but any qualified shareholder before the voting begins
may demand a stock vote whereupon such stock vote shall be taken by ballot, each
of which shall state the name of the shareholder voting and the number of shares
voted by such shareholder, and if such ballot be cast by a proxy, it shall also
state the name of such proxy.

                  At any meeting of the shareholders, every shareholder having
the right to vote shall be entitled to vote in person, or by proxy appointed in
a writing subscribed by such shareholder and bearing a date not more than eleven
months prior to said meeting, unless the writing states that it is irrevocable
and satisfies Section 705(e) of the California Corporations Code, in which event
it is irrevocable for the period specified in said writing and said Section
705(e).

                  Section 10. RECORD DATES. In the event the Board of Directors
fixes a day for the determination of shareholders of record entitled to vote as
provided in Section 1 of Article V of these Bylaws, then, subject to the
provisions of the General Corporation Law of the State of California, only
persons in whose name shares entitled to vote stand on the stock records of the
Corporation at the close of business on such day shall be entitled to vote.

                  If no record date is fixed:

                  The record date for determining shareholders entitled to
notice of or to vote at a meeting of shareholders shall be at the close of
business on the business day next preceding the day notice is given or, if
notice is waived, at the close of business on the business day next preceding
the day on which the meeting is held;

                  The record date for determining shareholders entitled to give
consent to corporate action in writing without a meeting, when no prior action
by the Board of Directors is necessary, shall be the day on which the first
written consent is given; and

                  The record date for determining shareholders for any other
purpose shall be at the close of business on the day on which the Board of
Directors adopts the resolution relating thereto, or the 60th day prior to the
date of such other action, whichever is later.

                                       3
<PAGE>

                  A determination of shareholders of record entitled to notice
of or to vote at a meeting of shareholders shall apply to any adjournment of the
meeting unless the Board of Directors fixes a new record date for the adjourned
meeting, but the Board of Directors shall fix a new record date if the meeting
is adjourned for more than 45 days.

                  Section 11. CUMULATIVE VOTING FOR ELECTION OF DIRECTORS.
Provided the candidate's name has been placed in nomination prior to the voting
and one or more shareholders has given notice at the meeting prior to the voting
of the shareholder's intent to cumulate the shareholder's votes, every
shareholder entitled to vote at any election for directors shall have the right
to cumulate such shareholder's votes and give one candidate a number of votes
equal to the number of directors to be elected multiplied by the number of votes
to which the shareholder's shares are normally entitled, or distribute the
shareholder's votes on the same principle among as many candidates as the
shareholder shall think fit. The candidates receiving the highest number of
votes of the shares entitled to be voted for them up to the number of directors
to be elected by such shares are elected.

                        ARTICLE III - BOARD OF DIRECTORS

                  Section 1. POWERS. Subject to any limitations in the Articles
of Incorporation or these Bylaws and to any provision of the California
Corporations Code requiring shareholder authorization or approval for a
particular action, the business and affairs of the Corporation shall be managed
and all corporate powers shall be exercised by, or under the direction of, the
Board of Directors. The Board of Directors may delegate the management of the
day-to-day operation of the business of the Corporation to a management company
or other person provided that the business and affairs of the Corporation shall
be managed and all corporate powers shall be exercised, under the ultimate
direction of the Board of Directors.

                  Section 2. NUMBER, TENURE AND QUALIFICATIONS. The number of
directors that shall constitute the whole board shall be not more than seven or
fewer than five. The exact number of directors may be fixed from time to time
within such limit by a duly adopted resolution of the Board of Directors or
shareholders. An amendment to these Bylaws reducing the number of directors to a
number less than five cannot be adopted if the votes cast against its adoption
at a meeting or the shares not consenting in the case of action by written
consent are equal to more than 16-2/3% of the outstanding shares entitled to
vote. The exact number of directors presently authorized shall be five until
changed within the limits specified above by a duly adopted resolution of the
Board of Directors or shareholders. Directors need not be shareholders.

                  Directors shall hold office until the next annual meeting of
shareholders and until their respective successors are elected. If any such
annual meeting is not held, or the directors are not elected thereat, the
directors may be elected at any special meeting of shareholders held 

                                       4
<PAGE>

for that purpose.

                  Section 3. REGULAR MEETINGS. A regular annual meeting of the
Board of Directors shall be held without other notice than this Bylaw
immediately after, and at the same place as, the annual meeting of shareholders.
The Board of Directors may provide for other regular meetings from time to time
by resolution.

                  Section 4. SPECIAL MEETINGS. Special meetings of the Board of
Directors may be called at any time by the Chairman of the Board, or the
President or any Vice President, or the Secretary or any two directors. Written
notice of the time and place of all special meetings of the Board of Directors
shall be delivered personally or by telephone, including a voice messaging
system or other system or technology designed to record and communicate
messages, telegraph, facsimile, electronic mail or other electronic means to
each director at least forty-eight hours before the meeting, or sent to each
director by first-class mail, postage prepaid, at least four days before the
meeting. Such notice need not specify the purpose of the meeting. Notice of any
meeting of the Board of Directors need not be given to any director who signs a
waiver of notice, whether before or after the meeting, or who attends the
meeting without protesting prior thereto or at its commencement, the lack of
notice to such director.

                  Section 5. PLACE OF MEETINGS. Meetings of the Board of
Directors may be held at any place within or without the State of California,
which has been designated in the notice, or if not stated in the notice or there
is no notice, the principal executive office of the Corporation or as designated
by the resolution duly adopted by the Board of Directors.

                  Section 6. PARTICIPATION BY TELEPHONE. Members of the Board of
Directors may participate in a meeting through use of conference telephone,
electronic video screen communication, or other communications equipment.
Participation in a meeting through use of conference telephone constitutes
presence in person at the meeting as long as all members participating in such
meeting can hear one another. Participation in a meeting through the use of
electronic video screen communication or other communications equipment (other
than conference telephone) constitutes presence in person at that meeting if all
of the following apply: (a) each member participating in the meeting can
communicate with all of the other members concurrently, (b) each member is
provided the means of participating in all matters before the Board of
Directors, including, without limitation, the capacity to propose, or to
interpose an objection to, a specific action to be taken by the Corporation, and
(c) the Corporation adopts and implements some means of verifying that (i) a
person participating in the meeting is a director or other person entitled to
participate in the Board of Directors' meeting, and (ii) all actions of, or
votes by, the Board of Directors are taken or cast only by the directors and not
by persons who are not directors.

                  Section 7. QUORUM. A majority of the Board of Directors shall
constitute a quorum at all meetings. In the absence of a quorum a majority of
the directors present may 

                                       5
<PAGE>

adjourn any meeting to another time and place. If a meeting is adjourned for
more than 24 hours, notice of any adjournment to another time or place shall be
given prior to the time of the reconvened meeting to the directors who were not
present at the time of adjournment.

                  Section 8. ACTION AT MEETING. Every act or decision done or
made by a majority of the directors present at a meeting duly held at which a
quorum is present is the act of the Board of Directors. A meeting at which a
quorum is initially present may continue to transact business notwithstanding
the withdrawal of directors, if any action taken is approved by at least a
majority of the required quorum for such meeting.

                  Section 9. WAIVER OF NOTICE. The transactions of any meeting
of the Board of Directors, however called and noticed or wherever held, are as
valid as though had at a meeting duly held after regular call and notice if a
quorum is present and if, either before or after the meeting, each of the
directors not present signs a written waiver of notice, a consent to holding the
meeting, or an approval of the minutes thereof. All such waivers, consents and
approvals shall be filed with the corporate records or made a part of the
minutes of the meeting.

                  Section 10. ACTION WITHOUT MEETING. Any action required or
permitted to be taken by the Board of Directors may be taken without a meeting,
if all members of the Board individually or collectively consent in writing to
such action. Such written consent or consents shall be filed with the minutes of
the proceedings of the Board. Such action by written consent shall have the same
force and effect as a unanimous vote of such directors.

                  Section 11. REMOVAL. The Board of Directors may declare vacant
the office of a director who has been declared of unsound mind by an order of
court or who has been convicted of a felony.

                  The entire Board of Directors or any individual director may
be removed from office without cause by a vote of shareholders holding a
majority of the outstanding shares entitled to vote at an election of directors;
provided, however, that unless the entire Board is removed, no individual
director may be removed when the votes cast against removal, or not consenting
in writing to such removal, would be sufficient to elect such director if voted
cumulatively at an election at which the same total number of votes cast were
cast (or, if such action is taken by written consent, all shares entitled to
vote were voted) and the entire number of directors authorized at the time of
the director's most recent election were then being elected.

                  In the event an office of a director is so declared vacant or
in case the Board or any one or more directors be so removed, new directors may
be elected at the same meeting.

                  Section 12. RESIGNATIONS. Any director may resign effective
upon giving written notice to the Chairman of the Board, the President, the
Secretary or the Board of Directors of the Corporation, unless the notice
specifies a later time for the effectiveness of such resignation. If 

                                       6
<PAGE>

the resignation is effective at a future time, a successor may be elected to
take office when the resignation becomes effective.

                  Section 13. VACANCIES. Except for a vacancy created by the
removal of a director, all vacancies in the Board of Directors, whether caused
by resignation, death or otherwise, may be filled by a majority of the remaining
directors or, if the number of directors then in office is less than a quorum,
by (a) the unanimous written consent of the directors then in office, (b) the
affirmative vote of a majority of the directors then in office at a meeting held
pursuant to notice or waivers of notice complying with California Corporations
Code Section 307, or (c) a sole remaining director, and each director so elected
shall hold office until his successor is elected at an annual, regular or
special meeting of the shareholders. Vacancies created by the removal of a
director may be filled only by approval of the shareholders. The shareholders
may elect a director at any time to fill any vacancy not filled by the
directors. Any such election by written consent requires the consent of a
majority of the outstanding shares entitled to vote.

                  Section 14. COMPENSATION. No stated salary shall be paid
directors, as such, for their services, but, by resolution of the Board of
Directors, a fixed sum and expenses of attendance, if any, may be allowed for
attendance at each regular or special meeting of such Board; provided that
nothing herein contained shall be construed to preclude any director from
serving the Corporation in any other capacity and receiving compensation
therefor. Members of special or standing committees may be allowed like
compensation for attending committee meetings.

                  Section 15. COMMITTEES. The Board of Directors may, by
resolution adopted by a majority of the authorized number of directors,
designate one or more committees, each consisting of two or more directors, to
serve at the pleasure of the Board of Directors. The Board of Directors may
designate one or more directors as alternate members of any committee, who may
replace any absent member at any meeting of the committee. The appointment of
members or alternate members of a committee requires the vote of a majority of
the authorized number of directors. Any such committee, to the extent provided
in the resolution of the Board of Directors, shall have all the authority of the
Board of Directors in the management of the business and affairs of the
Corporation, except with respect to (a) the approval of any action requiring
shareholders' approval or approval of the outstanding shares, (b) the filling of
vacancies on the Board or any committee, (c) the fixing of compensation of
directors for serving on the Board or any committee, (d) the adoption, amendment
or repeal of Bylaws, (e) the amendment or repeal of any resolution of the Board
which by its express terms is not so amendable or repealable, (f) a distribution
to shareholders, except at a rate or in a periodic amount or within a price
range determined by the Board, and (g) the appointment of other committees of
the Board or the members thereof.

                              ARTICLE IV - OFFICERS

                                       7
<PAGE>

                  Section 1. NUMBER AND TERM. The officers of the Corporation
shall be a Chairman of the Board, a President, one or more Vice-Presidents, a
Secretary and a Chief Financial Officer, all of which shall be chosen by the
Board of Directors. In addition, the Board of Directors may appoint such other
officers as may be deemed expedient for the proper conduct of the business of
the Corporation, each of whom shall have such authority and perform such duties
as the Board of Directors may from time to time determine. The officers to be
appointed by the Board of Directors shall be chosen annually at the regular
meeting of the Board of Directors held after the annual meeting of shareholders
and shall serve at the pleasure of the Board of Directors. If officers are not
chosen at such meeting of the Board of Directors, they shall be chosen as soon
thereafter as shall be convenient. Each officer shall hold office until his
successor shall have been duly chosen or until his removal or resignation.

                  Section 2. INABILITY TO ACT. In the case of absence or
inability to act of any officer of the Corporation and of any person herein
authorized to act in his place, the Board of Directors may from time to time
delegate the powers or duties of such officer to any other officer, or any
director or other person whom it may select.

                  Section 3. REMOVAL AND RESIGNATION. Any officer chosen by the
Board of Directors may be removed at any time, with or without cause, by the
affirmative vote of a majority of all the members of the Board of Directors.

                  Any officer chosen by the Board of Directors may resign at any
time by giving written notice of said resignation to the Corporation. Unless a
different time is specified therein, such resignation shall be effective upon
its receipt by the Chairman of the Board, the President, the Secretary or the
Board of Directors.

                  Section 4. VACANCIES. A vacancy in any office because of any
cause may be filled by the Board of Directors for the unexpired portion of the
term.

                  Section 5. CHAIRMAN OF THE BOARD. The Chairman of the Board
shall preside at all meetings of the Board.

                  Section 6. PRESIDENT. The President shall be the chief
executive officer of the Corporation unless such title is assigned to another
officer of the Corporation; in the absence of a Chairman and Vice Chairman of
the Board, the President shall preside as the chairman of meetings of the
shareholders and the Board of Directors; and the President shall have general
and active management of the business of the Corporation and shall see that all
orders and resolutions of the Board of Directors are carried into effect. The
President or any Vice President shall execute bonds, mortgages and other
contracts requiring a seal, under the seal of the Corporation (if the
Corporation has adopted a seal), except where required or permitted by law to be
otherwise signed and executed and except where the signing and execution thereof
shall be 

                                       8
<PAGE>

expressly delegated by the Board of Directors to some other officer or agent of
the Corporation.

                  Section 7. VICE PRESIDENT. In the absence of the President, or
in the event of such officer's death, disability or refusal to act, the Vice
President, or in the event there be more than one Vice President, the Vice
Presidents in the order designated at the time of their selection, or in the
absence of such designation, then in the order of their selection, shall perform
the duties of President, and when so acting, shall have all the powers and be
subject to all restrictions upon the President. Each Vice President shall have
such powers and discharge such duties as may be assigned from time to time by
the President or by the Board of Directors.

                  Section 8. SECRETARY. The Secretary shall see that notices for
all meetings are given in accordance with the provisions of these Bylaws and as
required by law, shall keep minutes of all meetings, shall have charge of the
seal and the corporate books, and shall make such reports and perform such other
duties as are incident to such office, or as are properly required by the
President or by the Board of Directors.

                  The Assistant Secretary or the Assistant Secretaries, in the
order of their seniority, shall, in the absence or disability of the Secretary,
or in the event of such officer's refusal to act, perform the duties and
exercise the powers and discharge such duties as may be assigned from time to
time by the President or by the Board of Directors.

                  Section 9. CHIEF FINANCIAL OFFICER. The Chief Financial
Officer may also be designated by the alternate title of "Treasurer." The Chief
Financial Officer shall have the custody of all moneys and securities of the
Corporation and shall keep regular books of account. Such officer shall disburse
funds of the Corporation in payment of the just demands against the Corporation,
or as may be ordered by the Board, taking proper vouchers for such
disbursements, and shall render to the Board from time to time as may be
required of such officer, an account of all transactions as Chief Financial
Officer and of the financial condition of the Corporation. Such officer shall
perform all duties incident to such office or that are properly required by the
President or by the Board. If required by the Board of Directors, the Chief
Financial Officer shall give the corporation a bond (which shall be renewed
every six years) in such sum and with such surety or sureties as shall be
satisfactory to the Board of Directors for the faithful performance of the
duties of such officer's office and for the restoration to the corporation, in
case of such officer's death, resignation, retirement or removal from office, of
all books, papers, vouchers, money and other property of whatever kind in such
officer's possession or control belonging to the corporation.

                  The Assistant Treasurer or the Assistant Treasurers, in the
order of their seniority, shall, in the absence or disability of the Chief
Financial Officer, or in the event of such officer's refusal to act, perform the
duties and exercise the powers of the Chief Financial Officer, and shall have
such powers and discharge such duties as may be assigned from time to time by
the President or by the Board of Directors.

                                       9
<PAGE>

                  Section 10. SALARIES. The salaries of the officers shall be
fixed from time to time by the Board of Directors and no officer shall be
prevented from receiving such salary by reason of the fact that such officer is
also a director of the Corporation.

                  Section 11. OFFICERS HOLDING MORE THAN ONE OFFICE. Any two or
more offices may be held by the same person, but no officer shall execute,
acknowledge or verify any instrument in more than one capacity.

                  Section 12. APPROVAL OF LOAN TO OFFICERS. The Corporation may,
upon the approval of the Board of Directors alone, make loans or money or
property to, or guarantee the obligations of, any officer of the Corporation or
its parent or subsidiary, whether or not a director, or adopt an employee
benefit plan or plans authorizing such loans or guaranties provided that (i) the
Board of Directors determines that such a loan or guaranty or plan may
reasonably be expected to benefit the Corporation, (ii) the Corporation has
outstanding shares held of record by 100 or more persons (determined as provided
in Section 605 of the California Corporations Code) on the date of approval by
the Board of Directors, and (iii) the approval of the Board of Directors is by a
vote sufficient without counting the vote of any interested director or
directors.

                            ARTICLE V - MISCELLANEOUS

                  Section 1. RECORD DATE AND CLOSING OF STOCK BOOKS. The Board
of Directors may fix a time in the future as a record date for the determination
of the shareholders entitled to notice of and to vote at any meeting of
shareholders or entitled to receive payment of any dividend or distribution, or
any allotment of rights, or to exercise rights in respect to any other lawful
action. The record date so fixed shall not be more than sixty nor less than ten
days prior to the date of the meeting or event for the purposes of which it is
fixed. When a record date is so fixed, only shareholders of record at the close
of business on that date are entitled to notice of and to vote at the meeting or
to receive the dividend, distribution, or allotment of rights, or to exercise
the rights, as the case may be, notwithstanding any transfer of any shares on
the books of the Corporation after the record date.

                  The Board of Directors may close the books of the Corporation
against transfers of shares during the whole or any part of a period of not more
than sixty days prior to the date of a shareholders' meeting, the date when the
right to any dividend, distribution, or allotment of rights vests, or the
effective date of any change, conversion or exchange of shares.

                  Section 2. CERTIFICATES. Certificates of stock shall be issued
in numerical order and each shareholder shall be entitled to a certificate
signed in the name of the Corporation by the Chairman of the Board or the
President or a Vice President, and the Chief Financial Officer or the Secretary
or an Assistant Secretary, certifying to the number of shares owned by such

                                       10
<PAGE>

shareholder. Any or all of the signatures on the certificate may be facsimile.
Prior to the due presentment for registration of transfer in the stock transfer
book of the Corporation, the registered owner shall be treated as the person
exclusively entitled to vote, to receive notifications and otherwise to exercise
all the rights and powers of an owner, except as expressly provided otherwise by
the laws of the State of California.

                  Section 3. REPRESENTATION OF SHARES IN OTHER CORPORATIONS.
Shares of other corporations standing in the name of this Corporation may be
voted or represented and all incidents thereto may be exercised on behalf of the
Corporation by the Chairman of the Board or the President or the Vice President
and the Chief Financial Officer or the Secretary or an Assistant Secretary.

                  Section 4. FISCAL YEAR. The fiscal year of the Corporation
shall be determined by the Board of Directors.

                  Section 5. ANNUAL REPORTS. The Annual Report to shareholders,
described in the California Corporations Code, is expressly waived and dispensed
with until such time as the Corporation has more than 100 shareholders.

                  Section 6. AMENDMENTS. Bylaws may be adopted, amended, or
repealed by the vote or the written consent of shareholders entitled to exercise
a majority of the voting power of the Corporation. Subject to the right of
shareholders to adopt, amend, or repeal Bylaws, Bylaws may be adopted, amended,
or repealed by the Board of Directors, except that a Bylaw amendment thereof
changing the authorized number of directors may be adopted by the Board of
Directors only if these Bylaws permit an indefinite number of directors and the
Bylaw or amendment thereof adopted by the Board of Directors changes the
authorized number of directors within the limits specified in these Bylaws.

                  Section 7. INDEMNIFICATION OF CORPORATE AGENTS. The
Corporation shall indemnify each of its agents against expenses, judgments,
fines, settlements and other amounts, actually and reasonably incurred by such
person by reason of such person's having been made or having been threatened to
be made a party to a proceeding to the fullest extent permissible under the
California Corporations Code and the Corporation shall advance the expenses
reasonably expected to be incurred by such agent in defending any such
proceeding upon receipt of the undertaking required by subdivision (f) of
Section 317 of the California Corporations Code. The terms "agent," "proceeding"
and "expenses" made in this Section 7 shall have the same meaning as such terms
in said Section 317.

                                       11

<PAGE>

                                                                     EXHIBIT 4.6

                               GRAPHON CORPORATION

                          REGISTRATION RIGHTS AGREEMENT


     THIS REGISTRATION RIGHTS AGREEMENT (the "Agreement") is made by and among
GRAPHON CORPORATION (the "Company") , SPENCER TRASK INVESTORS (the
"Partnership"), Walter Keller ("Keller") and each INVESTOR executing a copy
hereof (together with the Partnership and Keller, collectively, the "Investors,"
and each an "Investor").

     WHEREAS, the Investors (other than the Partnership and Keller) desire to
purchase from the Company, and the Company desires to issue and sell to the
Investors, up to an aggregate of 45 Units (plus an additional 6.75 Units solely
to cover over-subscriptions, if any), each Unit consisting of 100,000 shares of
common stock, no par value per share (the "Common Stock"), all upon the terms
set forth in the Company's Confidential Private Placement Memorandum dated
September 2, 1998 (the "Memorandum").

     WHEREAS, to induce such Investors to purchase Units, the Company has
undertaken to register the Common stock, under the terms set forth herein;

     WHEREAS, the Company has agreed to grant the same registration rights to
the Partnership with respect to an aggregate of 4,675,000 shares of Common Stock
(the "Partnership Stock"), with 3,500,000 of such shares having been purchased
from certain shareholders of the Company, 500,000 of such shares having been
purchased from the company, 475,000 of such shares issuable upon conversion of
the Convertible Promissory Note and 200,000 shares issuable upon conversion of
that certain Note held by the Partnership; and

     WHEREAS, the Company has agreed to grant the same registration rights to
Keller in connection with 100,000 shares of Common Stock (the "Keller Stock")
issuable upon conversion of that certain Note held by Keller.

     NOW, THEREFORE, the Company and the Investors hereby covenant and agree as
follows:

     1. CERTAIN DEFINITIONS. As used in this Agreement, the following terms
shall have the following respective meanings:

          "Commission" shall mean the Securities and Exchange Commission, or any
other federal agency at the time administering the Securities Act.


                                        1

<PAGE>



          "Common Stock" shall mean the Common Stock, no par value, of the
Company, as constituted as of the date of this Agreement.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended, or any similar federal statute, and the rules and regulations of the
Commission thereunder, all as the same shall be in effect at the time.

          "Final Closing Date" shall mean the closing date of the sale of the
last shares of Common Stock to Investors pursuant to the Memorandum.

          "Lock-Up Period" shall mean the period commencing on the day on which
an initial public offering of the Company's securities shall be consummated and
ending on (i) the first anniversary thereof or (ii) such earlier or later date
as shall have been agreed between the underwriter and the Placement Agent,
acting on behalf of the holders of the Registrable Securities pursuant to
Section 4(c) hereof; provided, however, that in the event that any other holders
of the Company's securities shall have been permitted to participate in such
initial public offering, the Lock-Up Period shall end 180 days after the
consummation of such initial public offering.

          "Register," "registered" and "registration" shall mean a registration
effected by preparing and filing a registration statement or statements or
similar documents in compliance with the Securities Act and the declaration or
ordering of effectiveness of such registration statement or document by the
Commission.

          "Registrable Securities" shall mean (i) the Common Stock contained in
the Units purchased by the Investors, (ii) the Partnership Stock, (iii) the
Keller Stock and (iv) any Common Stock of the Company issued as a dividend or
other distribution with respect to, or in exchange for or in replacement of such
Common Stock otherwise acquired by an Investor other than Keller but excluding
any shares of Common Stock satisfying clause (i), (ii), (iii) or (iv) above but
which shares are sold by an Investor in a transaction in which such Investor's
registration rights under this Agreement are not assigned.

          "Requisite Period" shall mean, with respect to a firm commitment
underwritten public offering the period commencing on the effective date of the
registration statement and ending on the date such underwriter has completed the
distribution of all securities purchased by it, and, with respect to any other
registration, the period commencing on the effective date of the registration
statement and ending on the earlier of the date on which the sale of all
Registrable Securities covered thereby is completed or 180 days after such
effective date.


                                        2

<PAGE>



          "Securities Act" shall mean the Securities Act of 1933, as amended, or
any similar federal statute, and the rules and regulations of the Commission
thereunder, all as the same shall be in effect at the time.

Capitalized terms not defined herein shall have the meanings set forth in the
Memorandum.

     2. AUTOMATIC AND DEMAND REGISTRATION.

          (a) In the event that the Company shall complete an initial public
offering of its securities prior to the second anniversary of the Final Closing,
the Company shall effect the registration under the Securities Act of all
Registrable Securities not later than the expiration of the Lock-Up Period;
provided, that a holder of Registrable Securities may inform the Company in
writing that it wishes to exclude all or a portion of its Registrable Securities
from such registration; and provided further, that the Company shall have no
obligation to register Registrable Securities pursuant to this Section 2(a) if
such securities are freely tradeable without restriction by virtue of Rule 144
under the Securities Act or otherwise.

          (b) In the event that on the third anniversary of the Final Closing
the Company has not yet completed such an initial public offering, the holders
of Registrable Securities constituting at least a majority of the total
Registrable Securities then outstanding may, by written notices (collectively, a
"Demand Notice"), request that the Company register under the Securities Act all
or any portion of the Registrable Securities held by such requesting holder or
holders for sale in the manner specified in the Demand Notice.

          (c) Following receipt of any Demand Notice under Section 2(b) above,
the Company shall immediately notify all holders of Registrable Securities from
whom a Demand Notice has not been received and shall use its best efforts to
register under the Securities Act, for public sale in accordance with the method
of disposition specified in the Demand Notice, the number of shares of Common
Stock specified in the Demand Notice (and in all notices received by the Company
from other holders within 30 days after the giving of such notice by the
Company). If such method of disposition shall be an underwritten public
offering, the Company may designate the managing underwriter of such offering,
subject to the approval of the holders of a majority of the Registrable
Securities to be sold in such offering, which approval shall not be unreasonably
withheld or delayed. All holders proposing to distribute their securities
through such underwriting shall (together with the Company) enter into an
underwriting agreement in customary form with the underwriter or underwriters
selected for such underwriting. Notwithstanding any other provision of this
Section 2, if the

                                        3

<PAGE>



underwriter advises the requesting holders in writing that marketing factors
require a limitation of the number of shares to be underwritten, then such
holders shall so advise all holders of Registrable Securities which would
otherwise be underwritten pursuant hereto, and the number of shares of
Registrable Securities that may be included in the underwriting shall be
allocated among all holders thereof, including the requesting holders, in
proportion (as nearly as practicable) to the amount of Registrable Securities of
the Company owned by each holder; provided, however, that the number of shares
of Registrable Securities to be included in such underwriting shall not be
reduced unless all other securities are first entirely excluded from the
underwriting. The Company shall be obligated to register Registrable Securities
pursuant to Section 2(b) on two occasions only, provided, that each such
obligation shall be deemed satisfied only when a registration statement covering
all Registrable Securities specified in notices received as aforesaid, for sale
in accordance with the method of disposition specified by the requesting
holders, shall have become effective and, if such method of disposition is a
firm commitment underwritten public offering, all such Registrable Securities
shall have been sold pursuant thereto.

          (d) Notwithstanding the foregoing, if the Company shall furnish to
holders of the Registrable Securities requesting a registration statement
pursuant to this Section 2, a certificate signed by the Chief Executive Officer
of the Company stating that in the good faith judgment of the Board of Directors
of the Company, it would be seriously detrimental to the Company and its
shareholders for such registration statement to be filed and it is therefore
essential to defer the filing of such registration statement, the Company shall
have the right to defer taking action with respect to such filing for a period
of not more than 120 days after receipt of the request of the holders of the
Registrable Securities; provided, however, that the Company may not utilize this
right more than once in any twelve-month period.

     3. Piggyback Registration. If the Company in its discretion at any time
(other than pursuant to Section 2) proposes to register any of its securities
under the Securities Act for sale to the public, whether for its own account or
for the account of other security holders or both (except with respect to
registration statements on Forms S-4 or S-8), each such time it will give
written notice to such effect to all holders of outstanding Registrable
Securities at least 30 days prior to such filing. Upon the written request of
any such holder, received by the Company within 30 days after the giving of any
such notice by the Company, to register any of its Registrable Securities, the
Company will cause the Registrable Securities as to which registration shall
have been so requested to be included in the securities to be covered by the
registration statement proposed to be filed by the Company, all to the extent
requisite to permit the sale or other disposition by the holder of such
Registrable Securities so registered. Notwithstanding the

                                        4

<PAGE>



foregoing, in the event that any registration pursuant to this Section 3 shall
be, in whole or in part, an underwritten public offering of Common Stock, the
number of Registrable Securities to be included in such an underwriting may be
reduced (pro rate among the requesting holders and the Placement Agent (as
defined in the Memorandum) and its assigns based upon the number of Registrable
Securities requested to be registered by them) of and to the extent that the
managing underwriter shall be of the good faith opinion that such inclusion
would reduce the number of shares to be offered by the Company, provided that
such number of Registrable Securities shall not be reduced if any shares of
Common Stock are to be included in such underwriting for the account of any
person other than the Company, the Placement Agent and its assigns or requesting
holders of Registrable Securities. Notwithstanding the foregoing provisions, the
Company may withdraw any registration statement referred to in this Section 3
without thereby incurring any liability to the holders of Registrable
Securities.

     4. LIMITATIONS ON REGISTRATION; LOCK-UP AGREEMENT; POWER OF ATTORNEY.

          (a) Notwithstanding anything to the contrary contained in this
Agreement, the Company shall not be required to file a registration statement
pursuant to Section 2 hereof (i) which would become effective within (A) the
Lock-up Period, or (B) 120 days following the effective date of a registration
statement (other than a registration statement filed on Form S-4 or S-8) filed
by the Company with the Commission pertaining to any subsequent public offering
for the account of the Company or another holder of securities of the Company if
the holders of Registrable Securities were afforded the opportunity to include
all of its Registrable Securities in such subsequent registration pursuant to
Section 3, or (ii) if it would violate any restriction or prohibition requested
by any managing underwriter for the Company's initial public offering.

          (b) In connection with the initial public offering or any registration
of Registrable Securities in connection with an underwritten public offering,
the holders of Registrable Securities agree if required by the underwriter or
underwriters not to effect any public sale or distribution, including any sale
pursuant to Rule 144 under the Securities Act, of any Registrable Securities,
and not to effect any such public sale or distribution of any other equity
security of the Company or of any security convertible into or exchangeable or
exercisable for any equity security of the Company (in each case, other than as
part of such underwritten public offering) during the 15 days prior to, and
during (i) the LockUp Period with respect to such initial public offering and
(ii) the 120 days following the effective date of the registration statement
(other than a registration statement on Form S-4 or S-8) with respect to such
other underwritten public offering if the holders of Registrable Securities were
afforded the opportunity to

                                        5

<PAGE>



include all of their Registrable Securities therein pursuant to Section 3.

          (c) In connection with any initial public offering by the Company,
each holder of Registrable Securities hereby irrevocably appoints the Placement
Agent (and all officers designated by Placement Agent) ("Attorney") to act as
his or its true and lawful Placement Agent and attorney-in-fact, with full power
of substitution, (i) to negotiate with the Company and the managing
underwriter(s) for the Company's initial public offering the terms and
conditions of the Lock-Up agreements of the holders of Registrable Securities
and any other restrictions on the right of such holder to sell his or its shares
of Common Stock which shall be imposed by the managing underwriter(s) for such
offering (including, without limitation, the length of the Lock-Up Period, and
the other rights of such holder of Registrable Securities to sell his or its
Registrable Securities), and (ii) to execute and deliver any and all documents,
agreements and instruments and to take any and all actions, in the name of and
on behalf of the holder of Registrable Securities, as may be necessary or
appropriate to effectuate the foregoing on such terms and conditions as the
Attorney approves in its sole judgment. No person to whom this Power of Attorney
is presented, as authority for Attorney to take any action or actions
contemplated hereby, shall be required to inquire into or seek confirmation from
the holder of Registrable Securities as to the authority of Attorney to take any
action or actions described above, or as to the existence of or fulfillment of
any condition to this Power of Attorney, which is intended to grant to Attorney
unconditionally the authority to take and perform the actions contemplated
herein, and the holder of the Registrable Securities irrevocably waives any
right to commence any suit or action, in law or equity, against any person or
entity which acts in reliance upon or acknowledges the authority granted under
this Power of Attorney. The Power of Attorney granted hereby is coupled with an
interest, and may not be revoked or cancelled by the holder of Registrable
Securities without Attorney's written consent. The holder of Registrable
Securities hereby ratifies, to the extent permitted by law, all that said
Attorney shall lawfully do or cause to be done by virtue hereof.

     5. REGISTRATION PROCEDURES. If and whenever the Company is required by the
provisions of Section 2 or 3 to use its best efforts to effect the registration
of any Registrable Securities under the Securities Act, the Company will, as
expeditiously as possible:

          (a) prepare and file with the Commission a registration statement with
respect to such securities within 60 days after the closing of the Company's
initial public offering under Section 2(a) hereof, and within 60 days after
delivery of a Demand Notice under Section 2(b) hereof, and use its best efforts
to cause such registration statement to become effective not later than 120 days
from the date of its filing and to remain effective for the Requisite

                                        6

<PAGE>



Period;

          (b) prepare and file with the Commission such amendments and
supplements to such registration statement and the prospectus used in connection
therewith as may be necessary to keep such registration statement effective for
the Requisite Period and comply with the provisions of the Securities Act with
respect to the disposition of all Registrable Securities covered by such
registration statement in accordance with the intended method of disposition set
forth in such registration statement for such period;

          (c) furnish to each seller of Registrable Securities and to each
underwriter such number of copies of the registration statement and the
prospectus included therein (including each preliminary prospectus) a such
persons reasonably may request in order to facilitate the intended disposition
of the Registrable Securities covered by such registration statement;

          (d) use its best efforts (i) to register or qualify the Registrable
Securities covered by such registration statement under the securities or "blue
sky" laws of such jurisdictions as the sellers of Registrable Securities or, in
the case of an underwritten public offering, the managing underwriter reasonably
shall request, (ii) to prepare and file in those jurisdictions such amendments
(including post-effective amendments) and supplements, and take such other
actions, as may be necessary to maintain such registration and qualification in
effect at all times for the period of distribution contemplated thereby and
(iii) to take such further action as may be necessary or advisable to enable the
disposition of the Registrable Securities in such jurisdictions, provided that
the Company shall not for any such purpose be required to qualify generally to
transact business as a foreign corporation in any jurisdiction where it is not
so qualified or to consent to general service of process in any jurisdiction;

          (e) use its best efforts to list the Registrable Securities covered by
such registration statement with any securities exchange on which the Common
Stock is then listed, or, if the Common Stock is not then listed on a national
securities exchange, use its best efforts to facilitate the reporting of the
Common Stock on The Nasdaq Stock Market;

          (f) immediately notify each seller of Registrable Securities and each
underwriter under such registration statement, at any time when a prospectus
relating thereto is required to be delivered under the Securities Act, of the
happening of any event of which the Company has knowledge as a result of which
the prospectus contained in such registration statement, as then in effect,
includes any untrue statement of a material fact or omits to state a material
fact required to be stated therein or necessary to make the statements

                                        7

<PAGE>



therein no misleading in light of the circumstances then existing and promptly
amend or supplement such registration statement to correct any such untrue
statement or omission;

          (g) notify each seller of Registrable Securities of the issuance by
the Commission of any stop order suspending the effectiveness of the
registration statement or the initiation of any proceedings for that purpose and
make every reasonable effort to prevent the issuance of any stop order and, if
any stop order is issued, to obtain the lifting thereof at the earliest possible
time;

          (h) permit a single firm of counsel designated as selling
stockholders' counsel by the holders of a majority in interest of the
Registrable Securities being registered to review the registration statement and
all amendments and supplements thereto for a reasonable period of time prior to
their filing (provided, however, that in no event shall the Company be required
to reimburse legal fees in excess of $25,000 per registration statement pursuant
to this Section 5(h) and the Company shall not file any document in a form to
which such counsel reasonably objects;

          (i) make generally available to its security holders as soon as
practicable, but not later than 90 days after the close of the period covered
thereby, an earnings statement (inform complying with the provisions of Rule 158
under the Securities Act) covering a 12-month period beginning not later than
the first day of the Company's next fiscal quarter following the effective date
of the registration statement;

          (j) if the offering is an underwritten offering, the Company will
enter into a written agreement with the managing underwriter selected in the
manner herein provided in such form and containing such provisions as are usual
and customary in the securities business for such an arrangement between such
underwriter and companies of the Company's size and investment stature,
including, without limitation customary indemnification and contribution
provisions;

          (k) if the offering is an underwritten offering, at the request of any
seller of Registrable Securities, use its best efforts to furnish on the date
that Registrable Securities are delivered to the underwriters for sale pursuant
to such registration; (i) an opinion dated such date of counsel representing the
Company for the purposes of such registration, addressed to the underwriters and
to such seller, in form and substance as is customarily given to underwriters in
an underwritten public offering, (ii) a letter dated such date from the
independent public accountants retained by the Company,. addressed to the
underwriters and to such seller, stating that they are independent public
accountants within the

                                        8

<PAGE>



meaning of the Securities Act and that, in the opinion of such accountants, the
financial statements of the Company included in the registration statement or
the prospectus, or any amendment or supplement thereof, comply as to form in all
material respects with the applicable accounting requirements of the Securities
Act, and such letter shall additionally cover such other financial matters
(including information as to the period ending no more than five business days
prior to the date of such letter) with respect to such registration as such
underwriters reasonably may request;

          (l) make available for inspection by each seller of Registrable
Securities, any underwriter participating in any distribution pursuant to such
registration statement, and any attorney, accountant or other agent retained by
such seller or underwriter, all financial and other records, pertinent corporate
documents and properties of the Company, and cause the Company's officers,
directors and employees to supply all information reasonably requested by any
such seller, underwriter, attorney, accountant or agent in connection with such
registration statement;

          (m) provide a transfer agent and registrar, which may be a single
entity, for the Registrable Securities not later than the effective date of the
Registration Statement;

          (n) take all actions reasonably necessary to facilitate the timely
preparation and delivery of certificates (not bearing any legend restricting the
sale or transfer of such securities) representing the Registrable Securities to
be sold pursuant to the Registration Statement and to enable such certificates
to be in such denominations and registered in such names as the Investors or any
underwriters may reasonably request; and

          (o) take all other reasonable actions necessary to expedite and
facilitate the registration of the Registrable Securities pursuant to the
Registration Statement.

     In connection with each registration hereunder, the sellers of Registrable
Securities will furnish to the Company in writing such information with respect
to themselves and the proposed distribution by them as reasonably shall be
necessary in order to assure compliance with federal and applicable state
securities laws.

     6. EXPENSES. All expenses incurred by the Company in complying with
Sections 2 and 3, including, without limitation, all registration and filing
fees, printing expenses, fees and disbursements of counsel and independent
public accountants for the Company, fees and expenses (including counsel fees)

                                        9

<PAGE>



incurred in connection with complying with state securities or "blue sky" laws,
fees of the National Association of Securities Dealers, Inc., fees of transfer
agents and registrars, costs of insurance and, subject to Section 5(h) hereof,
fees and disbursements of one counsel for the sellers of Registrable Securities,
but excluding any Selling Expenses, are called "Registration Expenses." All
underwriting discounts and selling commissions applicable to the sale of
Registrable Securities are called "Selling Expenses."

          The Company will pay all Registration Expenses in connection with the
registration statement under Section 2(a), the first registration statement
under Section 2(b) and each registration statement under Section 3. All Selling
Expenses in connection with reach registration statement under Sections 2 or 3,
and all Registration Expenses in connection with the second registration
statement under Section 2(b), shall be borne by the participating sellers in
proportion to the number of Registrable Securities sold by each or as they may
otherwise agree.

     7. INDEMNIFICATION AND CONTRIBUTION. (a) In the event of a registration of
any of the Registrable Securities under the Securities Act pursuant to Sections
2 or 3, the Company will indemnify and hold harmless and pay and reimburse, each
seller of such Registrable Securities thereunder, each underwriter of such
Registrable Securities thereunder and each other person, if any, who controls
such seller or underwriter within the meaning of the Securities Act, against any
losses, claims, damages or liabilities, joint or several, to which such seller,
underwriter or controlling person may become subject under the Securities Act or
otherwise, insofar as such losses, claims, damages or liabilities (or actions in
respect thereof) arise out of or are based upon any untrue statement or alleged
untrue statement of any material fact contained in any registration statement
under which such Registrable Securities were registered under the Securities Act
pursuant to Sections 2 or 3, any preliminary prospectus or final prospectus
contained therein, or any amendment or supplement thereof, or arise out of or
are based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, or any violation or alleged violation of the Securities Act or any
state securities or "blue sky" laws and will reimburse each such seller, each
such underwriter and each such controlling person for any legal or other
expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, that the
Company will not be liable in any such case if and to the extent that any such
loss, claim, damage or liability arises out of or is based upon the Company's
reliance on an untrue statement or alleged untrue statement or omission or
alleged omission so made in conformity with information furnished by any such
seller, any such underwriter or any such controlling person in writing
specifically

                                       10

<PAGE>



for use in such registration statement or prospectus.

          (b) In the event of a registration of any of the Registrable
Securities under the Securities Act pursuant to Sections 2 or 3, each seller of
such Registrable Securities thereunder, severally and not jointly, will
indemnify and hold harmless the Company, each person, if any, who controls the
Company within the meaning of the Securities Act, each officer of the Company
who signs the registration statement, each director of the Company, each
underwriter and each person who controls any under within the meaning of the
Securities Act, against all losses, claims, damages or liabilities, joint or
several, to which the Company or such officer, director, underwriter or
controlling person may become subject under the Securities Act or otherwise,
insofar as such losses, claims, damages or liabilities (or actions in respect
thereof) arise out of or are based upon reliance on any untrue statement or
alleged untrue statement of any material fact contained in the registration
statement under which such Registrable Securities was registered under the
Securities Act pursuant to Sections 2 or 3, any preliminary prospectus or final
prospectus contained therein, or any amendment or supplement thereof, or arise
out of or are based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, and will reimburse the Company and each such officer,
director, underwriter and controlling person for any legal or other expenses
reasonably incurred by them in connection with investigating or defending any
such loss, claim, damage, liability or action, provided, that such seller will
be liable hereunder in any such case if and only to the extent that any such
loss, claim, damage or liability arises out of or is based upon an untrue
statement or alleged untrue statement or omission or alleged omission made in
reliance upon and in conformity with information pertaining to such seller, as
such, furnished in writing to the Company such seller specifically for use in
such registration statement or prospectus, and provided, that the liability of
each seller hereunder shall be limited to the proportion of any such loss,
claim, damage, liability or expense which is equal to the proportion that the
public offering price of the Registrable Securities sold by such seller under
such registration statement bears to the total public offering price of all
securities sold thereunder, but not in any event to exceed the gross proceeds
received by such seller from the sale of Registrable Securities covered by such
registration statement.

          (c) Promptly after receipt by an indemnified party hereunder of notice
of the commencement of any action, such indemnified party shall, if a claim in
respect thereof is to be made against the indemnifying party hereunder, notify
the indemnifying party in writing thereof, but the omission so to notify the
indemnifying party shall not relieve it from any liability which it may have to
such indemnified party other than under this Section 7 and shall only relieve it
from

                                       11

<PAGE>



any liability which it may have to such indemnified party under this Section 7
if and to the extent the indemnifying party is materially prejudiced by such
omission. In case any such action shall be brought against any indemnified party
and it shall notify the indemnifying party of the commencement thereof, the
indemnifying party shall be entitled to participate in and, to the extent it
shall wish, to assume and undertake the defense thereof with counsel to such
indemnified party, and, after notice from the indemnifying party to such
indemnified party of its election so to assume and undertake the defense
thereof, the indemnifying party shall not be liable to such indemnified party
under this Section 7 for any legal expenses subsequently incurred by such
indemnified party in connection with the defense thereof other than reasonable
costs of investigation and of liaison with counsel so selected, provided, that
if the defendants in any such action include both the indemnified party and the
indemnifying party and the indemnified party shall have reasonably concluded
that there may be reasonable defenses available to its which are different from
or additional to those available to the indemnifying party or if the interests
of the indemnified party reasonably may be deemed to conflict with the interests
of the indemnifying party, the indemnified party shall have the right to select
a separate counsel and to assume such legal defenses and otherwise to
participate in the defense of such action, with the expenses and fees of such
separate counsel and other expenses related to such participation to be
reimbursed by the indemnifying party as incurred. Notwithstanding anything to
the contrary contained herein, the indemnity provided in Section 7 shall not
apply to amounts paid in settlement of any loss, claim, damage, liability or
expense if such settlement is effected without the consent of the indemnified
party; provided that such indemnity shall apply to a settlement effected without
the consent of an indemnifying party in the event that such indemnifying party
has not assumed and undertaken the defense of the claim giving rise to such
indemnity.

          (d) In order to provide for just and equitable contribution to joint
liability under the Securities Act in any case in which either (i) any holder of
Registrable Securities exercising rights under this Agreement, or any
controlling person of any such holder, makes a claim for indemnification
pursuant to this Section 7, but it is judicially determined (by the entry of a
final judgment or decree by a court of competent jurisdiction and the expiration
of time to appeal or the denial of the last right of appeal) that such
indemnification may not be enforced in such case notwithstanding the fact this
Section 7 provides for indemnification in such case, or (ii) contribution under
the Securities Act may be required on the part of any such selling holder or any
such controlling person in circumstances for which indemnification is provided
under this Section 7; then, in each such case, the Company and such holder will
contribute to the aggregate losses, claims, damages or liabilities to which they
may be subject (after contribution from others) in such proportion so that such
holder is responsible for

                                       12

<PAGE>



the portion represented by the percentage that the public offering price of its
Registrable Securities offered by the registration statement bears to the public
offering price of all securities offered by such registration statement, and the
Company is reasonable for the remaining portion; provided, that, in any such
case, (A) no such holder will be required to contribute any amount in excess of
the public offering price of all such Registrable Securities offered by it
pursuant to such registration statement and (B) no person or entity guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) will be entitled to contribution from any person or entity who
was not guilty of such fraudulent misrepresentation.

     8. CHANGES IN CAPITAL STOCK. If, and as often as, there is any change in
the capital stock of the Company by way of a stock split, stock dividend,
combination or reclassification, or through a merger, consolidation,
reorganization or recapitalization, or by any other means, appropriate
adjustment shall be made in the provisions hereof so that the rights and
privileges granted hereby shall continue with respect to the capital stock as so
changed.

     9. RULE 144 REPORTING. With a view to making available the benefits of
certain rules and regulations of the Commission which may at any time permit the
sale of the Registrable Securities to the public without registration, at all
times after 90 days after any registration statement covering a public offering
of securities of the Company under the Securities Act shall have become
effective, the Company agrees to:

          (a) make and keep public information available, as those terms are
understood and defined in Rule 144 under the Securities Act;

          (b) file with the Commission in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act;
and

          (c) furnish to each holder of Registrable Securities forthwith upon
request a written statement by the Company as to its compliance with the
reporting requirements of such Rule 144 and of the Securities Act and the
Exchange Act, a copy of the most recent annual or quarterly report of the
Company, and such other reports and documents so filed by the Company as such
holder may reasonably request in availing itself of any rule or regulation of
the Commission allowing such holder to sell my Registrable Securities without
registration.

     10. EVENT OF ELECTION. In the event that the Company fails to fulfill its
registration responsibilities pursuant to Sections 2 or 3 of this Agreement for
any

                                       13

<PAGE>



reason, then the holders of the Common Stock contained in the Units purchased by
the Investors, in addition to all other rights and remedies available to such
holders at law or equity, shall have the rights provided in Section 9 of the
Subscription Agreement of even date herewith.

     11. REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company represents
and warrants to the Investors as follows:

          (a) The execution, delivery and performance of this Agreement by the
Company have been duly authorized by all requisite corporate action and will not
violate any provision of law, any order of any court or other agency of
government, the Articles of Incorporation or By-laws of the Company or any
provision of any indenture, agreement or other instrument to which it or nay or
its properties or assets is bound, conflict with, result in a breach of or
constitute (with due notice or lapse of time or both) a default under any such
indenture, agreement or other instrument or result in the creation or imposition
of any lien, charge or encumbrance of any nature whatsoever upon any of the
properties or assets of the Company or its subsidiaries.

          (b) This Agreement has been duly executed and delivered by the Company
and constitute the legal, valid and binding obligation of the Company,
enforceable in accordance with its terms.

     12. ASSIGNMENT OF REGISTRATION RIGHTS. The rights to have the Company
register Registrable Securities pursuant to this Agreement may be assigned by
the Investors to transferred or assignees of such securities; provided, that the
Company is, within reasonable time after such transfers, furnished with written
notice of the name and address of such transferee or assignee and the securities
with respect to which such registration rights are being assigned. The term
"Investors" as used in this Agreement shall include such permitted assignees.

     13. MISCELLANEOUS.

          (a) All covenants and agreements contained in this Agreement by or on
behalf of any of the parties hereto shall bind and inure to the benefit of the
respective successors and assigns of the parties hereto (including without
limitation transferees of any Registrable Securities), whether so expressed or
not.

          (b) All notices, requests, consents and other communications hereunder
shall be in writing and shall be delivered in person, mailed by certified or
registered mail, return receipt requested, or sent by telecopier or telex,

                                       14

<PAGE>



addressed (i) if to the Company or Mr. Keller, at 150 Harrison Avenue, Campbell,
California 95008, Facsimile No. (408) 370-5047, Attn: Walter Keller; (ii) if to
the Partnership, at 535 Madison Avenue, 18th Floor, New York, New York 10022;
Attn: William Doguardi; (iii) if to any other party hereto, at the address of
such party set forth on the Combined Signature Page to Subscription Agreement
and Registration Rights Agreement; and (iv) if to any subsequent holder of
Registrable Securities, to it at such address as may have been furnished to the
Company in writing by such holder; or, in any case, at such other address or
addresses as shall have been furnished in writing to the Company (in the case of
a holder of Registrable Securities) or to the holders of Registrable Securities
(in the case of the Company) in accordance with the provisions of this
paragraph.

          (c) This Agreement shall be governed by and construed in accordance
with the laws of the State of New York applicable to contracts entered into and
to be performed wholly within said State.

          (d) Any judicial proceeding brought against any of the parties to this
Agreement on any dispute arising out of this Agreement of any matter related
hereto shall be brought in the courts of the State of New York or in the United
States District Court for the Southern District of New York, and, by execution
and delivery of this Agreement, each of the parties hereto accepts for itself
and himself the process in any such action or proceeding by the mailing of
copies of such process to it, at its or his address as set forth in paragraph
13(b) and irrevocably agrees to be bound by any judgment rendered thereby in
connection with this Agreement. Each party hereto irrevocably waives to the
fullest extent permitted by law any objection that it or he may now or hereafter
have to the laying of the venue of any judicial proceeding brought in such
courts and any claim that any such judicial proceeding has been brought in an
inconvenient forum. The foregoing consent to jurisdiction shall not constitute
general consent to service of process in the State of New York for any purpose
except as provided above and shall not be deemed to confer rights on any person
other than the respective parties to this Agreement.

          (e) This Agreement may not be amended or modified without the written
consent of the Company and the holders of at least a majority of the Registrable
Securities.

          (f) Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof. No waiver shall be effective unless and
until it is in writing and signed by the party granting the waiver.



                                       15

<PAGE>


          (g) This Agreement may be executed in two or more counterparts, each
of which shall be deemed an original, but all of which together shall constitute
one and the same instrument.

          (h) The Company shall not grant to any third party other than Spencer
Trask Securities Incorporated any registration rights more favorable than or
inconsistent with any of those contained herein, or which would in any way,
adversely affect the rights of Investors hereunder, so long as any of the
registration rights under this Agreement remains in effect.

          (i) If any provision of this Agreement shall be held to be illegal,
invalid or unenforceable, such illegality, invalidity or unenforceability shall
attach only to such provision and shall not in any manner affect or render
illegal, invalid or unenforceable any other provision of this Agreement, and
this Agreement shall be carried out as if any such illegal invalid or unenforced
provision were not contained herein.

Dated:               , 1998                       SPENCER TRASK INVESTORS
      ---------------


                                                  By:
                                                     ---------------------------
                                                             Title:

GRAPHON CORPORATION


By:
    ---------------------                            ---------------------------
        Title:                                               Walter Keller


     [COMBINED SIGNATURE PAGE TO SUBSCRIPTION AGREEMENT AND REGISTRATION RIGHTS
     AGREEMENT TO BE EXECUTED BY COMPANY AND EACH INVESTOR, OTHER THAN THE
     PARTNERSHIP AND KELLER WHO SIGN THE REGISTRATION RIGHTS AGREEMENT
     HEREINABOVE]



                                                    16

<PAGE>

                                                                    Exhibit 10.2

                               GRAPHON CORPORATION
                      1998 STOCK OPTION/STOCK ISSUANCE PLAN


                                   ARTICLE ONE

                               GENERAL PROVISIONS


         I. PURPOSE OF THE PLAN

                  This 1998 Stock Option/Stock Issuance Plan is intended to
promote the interests of GraphOn Corporation, a California corporation, by
providing eligible persons in the Corporation's employ or service with the
opportunity to acquire a proprietary interest, or otherwise increase their
proprietary interest, in the Corporation as an incentive for them to continue in
such employ or service.

                  Capitalized terms herein shall have the meanings assigned to
such terms in the attached Appendix.

         II. STRUCTURE OF THE PLAN

                  A. The Plan shall be divided into two (2) separate equity
programs:

                          (i)the Option Grant Program under which eligible
         persons may, at the discretion of the Plan Administrator, be granted
         options to purchase shares of Common Stock, and

                          (ii)the Stock Issuance Program under which eligible
         persons may, at the discretion of the Plan Administrator, be issued
         shares of Common Stock directly, either through the immediate purchase
         of such shares or as a bonus for services rendered the Corporation (or
         any Parent or Subsidiary).

                  B. The provisions of Articles One and Four shall apply to both
equity programs under the Plan and shall accordingly govern the interests of all
persons under the Plan.

         III. ADMINISTRATION OF THE PLAN

                  A. The Plan shall be administered by the Board. However, any
or all administrative functions otherwise exercisable by the Board may be
delegated to the Committee. Members of the Committee shall serve for such period
of time as the Board may determine and shall be subject to removal by the Board
at any time. The Board may also at any time terminate the functions of the
Committee and reassume all powers and authority previously delegated to the
Committee.

                  B. The Plan Administrator shall have full power and authority
(subject to the 

<PAGE>

provisions of the Plan) to establish such rules and regulations as it may deem
appropriate for proper administration of the Plan and to make such
determinations under, and issue such interpretations of, the Plan and any
outstanding options or stock issuances thereunder as it may deem necessary or
advisable. Decisions of the Plan Administrator shall be final and binding on all
parties who have an interest in the Plan or any option or stock issuance
thereunder.

         IV. ELIGIBILITY

                  A. The persons eligible to participate in the Plan are as
follows:

                          (i)Employees,

                          (ii)non-employee members of the Board or the
         non-employee members of the board of directors of any Parent or
         Subsidiary, and

                          (iii)consultants and other independent advisors who
         provide services to the Corporation (or any Parent or Subsidiary).

                  B. The Plan Administrator shall have full authority to
determine, (i) with respect to the grants under the Option Grant Program, which
eligible persons are to receive the option grants, the time or times when those
grants are to be made, the number of shares to be covered by each such grant,
the status of the granted option as either an Incentive Option or a
Non-Statutory Option, the time or times when each option is to become
exercisable, the vesting schedule (if any) applicable to the option shares and
the maximum term for which the option is to remain outstanding, and (ii) with
respect to stock issuances under the Stock Issuance Program, which eligible
persons are to receive such stock issuances, the time or times when those
issuances are to be made, the number of shares to be issued to each Participant,
the vesting schedule (if any) applicable to the issued shares and the
consideration to be paid by the Participant for such shares.

                  C. The Plan Administrator shall have the absolute discretion
either to grant options in accordance with the Option Grant Program or to effect
stock issuances in accordance with the Stock Issuance Program.

         V. STOCK SUBJECT TO THE PLAN

                  A. The stock issuable under the Plan shall be shares of
authorized but unissued or reacquired Common Stock. The maximum number of shares
of Common Stock which may be issued over the term of the Plan shall not exceed
1,300,000 shares.

                  B. Shares of Common Stock subject to outstanding options shall
be available for subsequent issuance under the Plan to the extent (i) the
options expire or terminate for any reason prior to exercise in full or (ii) the
options are cancelled in accordance with the cancellation-regrant provisions of
Article Two. Unvested shares issued under the Plan and subsequently repurchased
by the Corporation, at the option exercise or direct issue price paid per share,
pursuant to the Corporation's repurchase rights under the Plan shall be added
back to the 

<PAGE>

number of shares of Common Stock reserved for issuance under the Plan and shall
accordingly be available for reissuance through one or more subsequent option
grants or direct stock issuances under the Plan.

                  C. Should any change be made to the Common Stock by reason of
any stock split, stock dividend, recapitalization, combination of shares,
exchange of shares or other change affecting the outstanding Common Stock as a
class without the Corporation's receipt of consideration, appropriate
adjustments shall be made to (i) the maximum number and/or class of securities
issuable under the Plan and (ii) the number and/or class of securities and the
exercise price per share in effect under each outstanding option in order to
prevent the dilution or enlargement of benefits thereunder. The adjustments
determined by the Plan Administrator shall be final, binding and conclusive. In
no event shall any such adjustments be made in connection with the conversion of
one or more outstanding shares of the Corporation's preferred stock into shares
of Common Stock.






<PAGE>

                                   ARTICLE TWO

                              OPTION GRANT PROGRAM


         I. OPTION TERMS

                  Each option shall be evidenced by one or more documents in the
form approved by the Plan Administrator; PROVIDED, however, that each such
document shall comply with the terms specified below. Each document evidencing
an Incentive Option shall, in addition, be subject to the provisions of the Plan
applicable to such options.

                  A. EXERCISE PRICE.

                  1. The exercise price per share shall be fixed by the Plan
Administrator in accordance with the following provisions:

                          (i)The exercise price per share shall not be less than
         eighty-five percent (85%) of the Fair Market Value per share of Common
         Stock on the option grant date.

                          (ii)If the person to whom the option is granted is a
         10% Shareholder, then the exercise price per share shall not be less
         than one hundred ten percent (110%) of the Fair Market Value per share
         of Common Stock on the option grant date.

                  2. The exercise price shall become immediately due upon
exercise of the option and shall, subject to the provisions of Section I of
Article Four and the documents evidencing the option, be payable in cash or
check made payable to the Corporation. Should the Common Stock be registered
under Section 12 of the 1934 Act at the time the option is exercised, then the
exercise price may also be paid as follows:

                          (i)in shares of Common Stock held for the requisite
         period necessary to avoid a charge to the Corporation's earnings for
         financial reporting purposes and valued at Fair Market Value on the
         Exercise Date, or

                          (ii)to the extent the option is exercised for vested
         shares, through a special sale and remittance procedure pursuant to
         which the Optionee shall concurrently provide irrevocable instructions
         (A) to a Corporation-designated brokerage firm to effect the immediate
         sale of the purchased shares and remit to the Corporation, out of the
         sale proceeds available on the settlement date, sufficient funds to
         cover the aggregate exercise price payable for the purchased shares
         plus all applicable Federal, state and local income and employment
         taxes required to be withheld by the Corporation by reason of such
         exercise and (B) to the Corporation to deliver the certificates for the
         purchased shares directly to such brokerage firm in order to complete
         the sale.

<PAGE>

                  Except to the extent such sale and remittance procedure is
utilized, payment of the exercise price for the purchased shares must be made on
the Exercise Date.

                  B. EXERCISE AND TERM OF OPTIONS. Each option shall be
exercisable at such time or times, during such period and for such number of
shares as shall be determined by the Plan Administrator and set forth in the
documents evidencing the option grant. However, the Plan Administrator may not
impose an exercise schedule upon the option grant or any shares of Common Stock
subject to that option which is more restrictive than twenty percent (20%) of
the option shares becoming exercisable per year, with the initial installment to
become exercisable not later than one (1) year after the option grant date. Such
limitation shall not be applicable to any option grants made to individuals who
are officers of the Corporation, non-employee Board members or independent
consultants. In addition, no option shall have a term in excess of ten (10)
years measured from the option grant date.

                  C. EFFECT OF TERMINATION OF SERVICE.

                  1. The following provisions shall govern the exercise of any
options held by the Optionee at the time of cessation of Service or death:

                          (i)Should the Optionee cease to remain in Service for
         any reason other than death, Disability or Misconduct, then the
         Optionee shall have a period of three (3) months following the date of
         such cessation of Service during which to exercise each outstanding
         option held by such Optionee.

                          (ii)Should Optionee's Service terminate by reason of
         Disability, then the Optionee shall have a period of twelve (12) months
         following the date of such cessation of Service during which to
         exercise each outstanding option held by such Optionee.

                          (iii)If the Optionee dies while holding an outstanding
         option, then the personal representative of his or her estate or the
         person or persons to whom the option is transferred pursuant to the
         Optionee's will or the laws of inheritance shall have a twelve
         (12)-month period following the date of the Optionee's death to
         exercise such option.

                          (iv)Under no circumstances, however, shall any such
         option be exercisable after the specified expiration of the option
         term.

                          (v)During the applicable post-Service exercise period,
         the option may not be exercised in the aggregate for more than the
         number of vested shares for which the option is exercisable on the date
         of the Optionee's cessation of Service. Upon the expiration of the
         applicable exercise period or (if earlier) upon the expiration of the
         option term, the option shall terminate and cease to be outstanding for
         any vested shares for which the option has not been exercised. However,
         the option shall, immediately upon the Optionee's cessation of Service,
         terminate and cease to be outstanding with respect to any and all

<PAGE>

         option shares for which the option is not otherwise at the time
         exercisable or in which the Optionee is not otherwise at that time
         vested.

                          (vi)Should Optionee's Service be terminated for
         Misconduct, then all outstanding options held by the Optionee shall
         terminate immediately and cease to remain outstanding.

                  2. The Plan Administrator shall have the discretion,
exercisable either at the time an option is granted or at any time while the
option remains outstanding, to:

                          (i)extend the period of time for which the option is
         to remain exercisable following Optionee's cessation of Service or
         death from the limited period otherwise in effect for that option to
         such greater period of time as the Plan Administrator shall deem
         appropriate, but in no event beyond the expiration of the option term,
         and/or

                          (ii)permit the option to be exercised, during the
         applicable post-Service exercise period, not only with respect to the
         number of vested shares of Common Stock for which such option is
         exercisable at the time of the Optionee's cessation of Service but also
         with respect to one or more additional installments in which the
         Optionee would have vested under the option had the Optionee continued
         in Service.

                  D. SHAREHOLDER RIGHTS. The holder of an option shall have no
shareholder rights with respect to the shares subject to the option until such
person shall have exercised the option, paid the exercise price and become the
holder of record of the purchased shares.

                  E. UNVESTED SHARES. The Plan Administrator shall have the
discretion to grant options which are exercisable for unvested shares of Common
Stock. Should the Optionee cease Service while holding such unvested shares, the
Corporation shall have the right to repurchase, at the exercise price paid per
share, any or all of those unvested shares. The terms upon which such repurchase
right shall be exercisable (including the period and procedure for exercise and
the appropriate vesting schedule for the purchased shares) shall be established
by the Plan Administrator and set forth in the document evidencing such
repurchase right. The Plan Administrator may not impose a vesting schedule upon
the option grant or any shares of Common Stock subject to that option which is
more restrictive than twenty percent (20%) per year vesting, with the initial
vesting to occur not later than one (1) year after the option grant date.
However, such limitation shall not be applicable to any option grants made to
individuals who are officers of the Corporation, non-employee Board members or
independent consultants.

                  F. FIRST REFUSAL RIGHTS. Until such time as the Common Stock
is first registered under Section 12 of the 1934 Act, the Corporation shall have
the right of first refusal with respect to any proposed disposition by the
Optionee (or any successor in interest) of any shares of Common Stock issued
under the Plan. Such right of first refusal shall be exercisable in accordance
with the terms established by the Plan Administrator and set forth in the
document evidencing such right.

<PAGE>

                  G. LIMITED TRANSFERABILITY OF OPTIONS. During the lifetime of
the Optionee, the option shall be exercisable only by the Optionee and shall not
be assignable or transferable other than by will or by the laws of descent and
distribution following the Optionee's death.

                  H. WITHHOLDING. The Corporation's obligation to deliver shares
of Common Stock upon the exercise of any options granted under the Plan shall be
subject to the satisfaction of all applicable Federal, state and local income
and employment tax withholding requirements.

         II. INCENTIVE OPTIONS

                  The terms specified below shall be applicable to all Incentive
Options. Except as modified by the provisions of this Section II, all the
provisions of the Plan shall be applicable to Incentive Options. Options which
are specifically designated as Non-Statutory Options shall NOT be subject to the
terms of this Section II.

                  A. ELIGIBILITY. Incentive Options may only be granted to
Employees.

                  B. EXERCISE PRICE. The exercise price per share shall not be
less than one hundred percent (100%) of the Fair Market Value per share of
Common Stock on the option grant date.

                  C. DOLLAR LIMITATION. The aggregate Fair Market Value of the
shares of Common Stock (determined as of the respective date or dates of grant)
for which one or more options granted to any Employee under the Plan (or any
other option plan of the Corporation or any Parent or Subsidiary) may for the
first time become exercisable as Incentive Options during any one (1) calendar
year shall not exceed the sum of One Hundred Thousand Dollars ($100,000). To the
extent the Employee holds two (2) or more such options which become exercisable
for the first time in the same calendar year, the foregoing limitation on the
exercisability of such options as Incentive Options shall be applied on the
basis of the order in which such options are granted.

                  D. 10% SHAREHOLDER. If any Employee to whom an Incentive
Option is granted is a 10% Shareholder, then the option term shall not exceed
five (5) years measured from the option grant date.

         III. CORPORATE TRANSACTION

                  A. The shares subject to each option outstanding under the
Plan at the time of a Corporate Transaction shall automatically vest in full so
that each such option shall, immediately prior to the effective date of the
Corporate Transaction, become fully exercisable for all of the shares of Common
Stock at the time subject to that option and may be exercised for any or all of
those shares as fully-vested shares of Common Stock. However, the shares subject
to an outstanding option shall NOT vest on such an accelerated basis if and to
the extent: (i) such option is assumed by the successor corporation (or parent
thereof) in the Corporate Transaction and the Corporation's repurchase rights
with respect to the unvested option shares are concurrently assigned to such
successor corporation (or parent thereof) or (ii) such option is to be replaced

<PAGE>

with a cash incentive program of the successor corporation which preserves the
spread existing on the unvested option shares at the time of the Corporate
Transaction and provides for subsequent payout in accordance with the same
vesting schedule applicable to those unvested option shares or (iii) the
acceleration of such option is subject to other limitations imposed by the Plan
Administrator at the time of the option grant.

                  B. All outstanding repurchase rights shall also terminate
automatically, and the shares of Common Stock subject to those terminated rights
shall immediately vest in full, in the event of any Corporate Transaction,
except to the extent: (i) those repurchase rights are assigned to the successor
corporation (or parent thereof) in connection with such Corporate Transaction or
(ii) such accelerated vesting is precluded by other limitations imposed by the
Plan Administrator at the time the repurchase right is issued.

                  C. Immediately following the consummation of the Corporate
Transaction, all outstanding options shall terminate and cease to be
outstanding, except to the extent assumed by the successor corporation (or
parent thereof).

                  D. Each option which is assumed in connection with a Corporate
Transaction shall be appropriately adjusted, immediately after such Corporate
Transaction, to apply to the number and class of securities which would have
been issuable to the Optionee in consummation of such Corporate Transaction, had
the option been exercised immediately prior to such Corporate Transaction.
Appropriate adjustments shall also be made to (i) the number and class of
securities available for issuance under the Plan following the consummation of
such Corporate Transaction and (ii) the exercise price payable per share under
each outstanding option, PROVIDED the aggregate exercise price payable for such
securities shall remain the same.

                  E. The Plan Administrator shall have the discretion,
exercisable either at the time the option is granted or at any time while the
option remains outstanding, to provide for the automatic acceleration (in whole
or in part) of one or more outstanding options (and the immediate termination of
the Corporation's repurchase rights with respect to the shares subject to those
options) upon the occurrence of a Corporate Transaction, whether or not those
options are to be assumed in the Corporate Transaction.

                  F. The Plan Administrator shall also have full power and
authority, exercisable either at the time the option is granted or at any time
while the option remains outstanding, to structure such option so that the
shares subject to that option will automatically vest on an accelerated basis
should the Optionee's Service terminate by reason of an Involuntary Termination
within a designated period (not to exceed eighteen (18) months) following the
effective date of any Corporate Transaction in which the option is assumed and
the repurchase rights applicable to those shares do not otherwise terminate. Any
option so accelerated shall remain exercisable for the fully-vested option
shares until the EARLIER of (i) the expiration of the option term or (ii) the
expiration of the one (1)-year period measured from the effective date of the
Involuntary Termination. In addition, the Plan Administrator may provide that
one or more of the Corporation's outstanding repurchase rights with respect to
shares held by the Optionee at the time of such Involuntary Termination shall
immediately terminate on an accelerated basis, 

<PAGE>

and the shares subject to those terminated rights shall accordingly vest at that
time.

                  G. The portion of any Incentive Option accelerated in
connection with a Corporate Transaction shall remain exercisable as an Incentive
Option only to the extent the applicable One Hundred Thousand Dollar limitation
is not exceeded. To the extent such dollar limitation is exceeded, the
accelerated portion of such option shall be exercisable as a Non-Statutory
Option under the Federal tax laws.

                  H. The grant of options under the Plan shall in no way affect
the right of the Corporation to adjust, reclassify, reorganize or otherwise
change its capital or business structure or to merge, consolidate, dissolve,
liquidate or sell or transfer all or any part of its business or assets.

         IV. CANCELLATION AND REGRANT OF OPTIONS

                  The Plan Administrator shall have the authority to effect, at
any time and from time to time, with the consent of the affected option holders,
the cancellation of any or all outstanding options under the Plan and to grant
in substitution therefor new options covering the same or different number of
shares of Common Stock but with an exercise price per share based on the Fair
Market Value per share of Common Stock on the new option grant date.






<PAGE>

                                  ARTICLE THREE

                             STOCK ISSUANCE PROGRAM


         I. STOCK ISSUANCE TERMS

                  Shares of Common Stock may be issued under the Stock Issuance
Program through direct and immediate issuances without any intervening option
grants. Each such stock issuance shall be evidenced by a Stock Issuance
Agreement which complies with the terms specified below.

                  A. PURCHASE PRICE.

                  1. The purchase price per share shall be fixed by the Plan
Administrator but shall not be less than eighty-five percent (85%) of the Fair
Market Value per share of Common Stock on the issue date. However, the purchase
price per share of Common Stock issued to a 10% Shareholder shall not be less
than one hundred and ten percent (110%) of such Fair Market Value.

                  2. Subject to the provisions of Section I of Article Four,
shares of Common Stock may be issued under the Stock Issuance Program for any of
the following items of consideration which the Plan Administrator may deem
appropriate in each individual instance:

                          (i)cash or check made payable to the Corporation, or

                          (ii)past services rendered to the Corporation (or any
         Parent or Subsidiary).

                  B. VESTING PROVISIONS.

                  1. Shares of Common Stock issued under the Stock Issuance
Program may, in the discretion of the Plan Administrator, be fully and
immediately vested upon issuance or may vest in one or more installments over
the Participant's period of Service or upon attainment of specified performance
objectives. However, the Plan Administrator may not impose a vesting schedule
upon any stock issuance effected under the Stock Issuance Program which is more
restrictive than twenty percent (20%) per year vesting, with initial vesting to
occur not later than one (1) year after the issuance date. Such limitation shall
not apply to any Common Stock issuances made to the officers of the Corporation,
non-employee Board members or independent consultants.

                  2. Any new, substituted or additional securities or other
property (including money paid other than as a regular cash dividend) which the
Participant may have the right to receive with respect to the Participant's
unvested shares of Common Stock by reason of any stock dividend, stock split,
recapitalization, combination of shares, exchange of shares or other change
affecting the outstanding Common Stock as a class without the Corporation's

<PAGE>

receipt of consideration shall be issued subject to (i) the same vesting
requirements applicable to the Participant's unvested shares of Common Stock and
(ii) such escrow arrangements as the Plan Administrator shall deem appropriate.

                  3. The Participant shall have full shareholder rights with
respect to any shares of Common Stock issued to the Participant under the Stock
Issuance Program, whether or not the Participant's interest in those shares is
vested. Accordingly, the Participant shall have the right to vote such shares
and to receive any regular cash dividends paid on such shares.

                  4. Should the Participant cease to remain in Service while
holding one or more unvested shares of Common Stock issued under the Stock
Issuance Program or should the performance objectives not be attained with
respect to one or more such unvested shares of Common Stock, then those shares
shall be immediately surrendered to the Corporation for cancellation, and the
Participant shall have no further shareholder rights with respect to those
shares. To the extent the surrendered shares were previously issued to the
Participant for consideration paid in cash or cash equivalent (including the
Participant's purchase-money indebtedness), the Corporation shall repay to the
Participant the cash consideration paid for the surrendered shares and shall
cancel the unpaid principal balance of any outstanding purchase-money note of
the Participant attributable to such surrendered shares.

                  5. The Plan Administrator may in its discretion waive the
surrender and cancellation of one or more unvested shares of Common Stock (or
other assets attributable thereto) which would otherwise occur upon the
non-completion of the vesting schedule applicable to such shares. Such waiver
shall result in the immediate vesting of the Participant's interest in the
shares of Common Stock as to which the waiver applies. Such waiver may be
effected at any time, whether before or after the Participant's cessation of
Service or the attainment or non-attainment of the applicable performance
objectives.

                  C. FIRST REFUSAL RIGHTS. Until such time as the Common Stock
is first registered under Section 12 of the 1934 Act, the Corporation shall have
the right of first refusal with respect to any proposed disposition by the
Participant (or any successor in interest) of any shares of Common Stock issued
under the Stock Issuance Program. Such right of first refusal shall be
exercisable in accordance with the terms established by the Plan Administrator
and set forth in the document evidencing such right.

         II. CORPORATE TRANSACTION

                  A. Upon the occurrence of a Corporate Transaction, all
outstanding repurchase rights under the Stock Issuance Program shall terminate
automatically, and the shares of Common Stock subject to those terminated rights
shall immediately vest in full, except to the extent: (i) those repurchase
rights are assigned to the successor corporation (or parent thereof) in
connection with such Corporate Transaction or (ii) such accelerated vesting is
precluded by other limitations imposed by the Plan Administrator at the time the
repurchase right is issued.

                  B. The Plan Administrator shall have the discretionary
authority, exercisable 

<PAGE>

either at the time the unvested shares are issued or any time while the
Corporation's repurchase rights with respect to those shares remain outstanding,
to provide that those rights shall automatically terminate on an accelerated
basis, and the shares of Common Stock subject to those terminated rights shall
immediately vest, in the event the Participant's Service should subsequently
terminate by reason of an Involuntary Termination within a designated period
(not to exceed eighteen (18) months) following the effective date of any
Corporate Transaction in which those repurchase rights are assigned to the
successor corporation (or parent thereof).

         III. SHARE ESCROW/LEGENDS

                  Unvested shares may, in the Plan Administrator's discretion,
be held in escrow by the Corporation until the Participant's interest in such
shares vests or may be issued directly to the Participant with restrictive
legends on the certificates evidencing those unvested shares.





<PAGE>


                                  ARTICLE FOUR

                                  MISCELLANEOUS


         I. FINANCING

                  The Plan Administrator may permit any Optionee or Participant
to pay the option exercise price or the purchase price for shares issued to such
person under the Plan by delivering a full-recourse, interest-bearing promissory
note payable in one or more installments and secured by the purchased shares.
However, any promissory note delivered by a consultant must be secured by
collateral in addition to the purchased shares of Common Stock. In no event
shall the maximum credit available to the Optionee or Participant exceed the SUM
of (i) the aggregate option exercise price or purchase price payable for the
purchased shares plus (ii) any Federal, state and local income and employment
tax liability incurred by the Optionee or the Participant in connection with the
option exercise or share purchase.

         II. EFFECTIVE DATE AND TERM OF PLAN

                  A. The Plan shall become effective when adopted by the Board,
but no option granted under the Plan may be exercised, and no shares shall be
issued under the Plan, until the Plan is approved by the Corporation's
shareholders. If such shareholder approval is not obtained within twelve (12)
months after the date of the Board's adoption of the Plan, then all options
previously granted under the Plan shall terminate and cease to be outstanding,
and no further options shall be granted and no shares shall be issued under the
Plan. Subject to such limitation, the Plan Administrator may grant options and
issue shares under the Plan at any time after the effective date of the Plan and
before the date fixed herein for termination of the Plan.

                  B. The Plan shall terminate upon the EARLIEST of (i) the
expiration of the ten (10)-year period measured from the date the Plan is
adopted by the Board, (ii) the date on which all shares available for issuance
under the Plan shall have been issued as vested shares or (iii) the termination
of all outstanding options in connection with a Corporate Transaction. All
options and unvested stock issuances outstanding at that time under the Plan
shall continue to have full force and effect in accordance with the provisions
of the documents evidencing such options or issuances.

         III. AMENDMENT OF THE PLAN

                  A. The Board shall have complete and exclusive power and
authority to amend or modify the Plan in any or all respects. However, no such
amendment or modification shall adversely affect the rights and obligations with
respect to options or unvested stock issuances at the time outstanding under the
Plan unless the Optionee or the Participant consents to such amendment or
modification. In addition, certain amendments may require shareholder approval
pursuant to applicable laws and regulations.

                  B. Options may be granted under the Option Grant Program and
shares may 

<PAGE>

be issued under the Stock Issuance Program which are in each instance in excess
of the number of shares of Common Stock then available for issuance under the
Plan, provided any excess shares actually issued under those programs shall be
held in escrow until there is obtained shareholder approval of an amendment
sufficiently increasing the number of shares of Common Stock available for
issuance under the Plan. If such shareholder approval is not obtained within
twelve (12) months after the date the first such excess issuances are made, then
(i) any unexercised options granted on the basis of such excess shares shall
terminate and cease to be outstanding and (ii) the Corporation shall promptly
refund to the Optionees and the Participants the exercise or purchase price paid
for any excess shares issued under the Plan and held in escrow, together with
interest (at the applicable Short Term Federal Rate) for the period the shares
were held in escrow, and such shares shall thereupon be automatically cancelled
and cease to be outstanding.

         IV. USE OF PROCEEDS

                  Any cash proceeds received by the Corporation from the sale of
shares of Common Stock under the Plan shall be used for general corporate
purposes.

         V. WITHHOLDING

                  The Corporation's obligation to deliver shares of Common Stock
upon the exercise of any options or upon the issuance or vesting of any shares
issued under the Plan shall be subject to the satisfaction of all applicable
Federal, state and local income and employment tax withholding requirements.

         VI. REGULATORY APPROVALS

                  The implementation of the Plan, the granting of any options
under the Plan and the issuance of any shares of Common Stock (i) upon the
exercise of any option or (ii) under the Stock Issuance Program shall be subject
to the Corporation's procurement of all approvals and permits required by
regulatory authorities having jurisdiction over the Plan, the options granted
under it and the shares of Common Stock issued pursuant to it.

         VII. NO EMPLOYMENT OR SERVICE RIGHTS

                  Nothing in the Plan shall confer upon the Optionee or the
Participant any right to continue in Service for any period of specific duration
or interfere with or otherwise restrict in any way the rights of the Corporation
(or any Parent or Subsidiary employing or retaining such person) or of the
Optionee or the Participant, which rights are hereby expressly reserved by each,
to terminate such person's Service at any time for any reason, with or without
cause.

         VIII. FINANCIAL REPORTS

                  The Corporation shall deliver a balance sheet and an income
statement at least annually to each individual holding an outstanding option
under the Plan, unless such individual is a key Employee whose duties in
connection with the Corporation (or any Parent or Subsidiary) 

<PAGE>

assure such individual access to equivalent information.















<PAGE>


                                    APPENDIX


                  The following definitions shall be in effect under the Plan:

                  A. BOARD shall mean the Corporation's Board of Directors.

                  B. CODE shall mean the Internal Revenue Code of 1986, as
amended.

                  C. COMMITTEE shall mean a committee of two (2) or more Board
members appointed by the Board to exercise one or more administrative functions
under the Plan.

                  D. COMMON STOCK shall mean the Corporation's common stock.

                  E. CORPORATE TRANSACTION shall mean either of the following
shareholder-approved transactions to which the Corporation is a party:

                     (i)a merger or consolidation in which securities possessing
         more than fifty percent (50%) of the total combined voting power of the
         Corporation's outstanding securities are transferred to a person or
         persons different from the persons holding those securities immediately
         prior to such transaction, or

                    (ii)the sale, transfer or other disposition of all or
         substantially all of the Corporation's assets in complete liquidation
         or dissolution of the Corporation.

                  F. CORPORATION shall mean GraphOn Corporation, a California
corporation, and any successor corporation to all or substantially all of the
assets or voting stock of GraphOn Corporation which shall by appropriate action
adopt the Plan.

                  G. DISABILITY shall mean the inability of the Optionee or the
Participant to engage in any substantial gainful activity by reason of any
medically determinable physical or mental impairment and shall be determined by
the Plan Administrator on the basis of such medical evidence as the Plan
Administrator deems warranted under the circumstances.

                  H. EMPLOYEE shall mean an individual who is in the employ of
the Corporation (or any Parent or Subsidiary), subject to the control and
direction of the employer entity as to both the work to be performed and the
manner and method of performance.

                  I. EXERCISE DATE shall mean the date on which the Corporation
shall have received written notice of the option exercise.

                  J. FAIR MARKET VALUE per share of Common Stock on any relevant
date shall be determined in accordance with the following provisions:

                     (i)If the Common Stock is at the time traded on the Nasdaq
         National Market, then the Fair Market Value shall be the closing
         selling price per share of Common Stock on the date in question, as
         such price is reported by the National 

<PAGE>

         Association of Securities Dealers on the Nasdaq National Market or any
         successor system. If there is no closing selling price for the Common
         Stock on the date in question, then the Fair Market Value shall be the
         closing selling price on the last preceding date for which such
         quotation exists.

                    (ii)If the Common Stock is at the time listed on any Stock
         Exchange, then the Fair Market Value shall be the closing selling price
         per share of Common Stock on the date in question on the Stock Exchange
         determined by the Plan Administrator to be the primary market for the
         Common Stock, as such price is officially quoted in the composite tape
         of transactions on such exchange. If there is no closing selling price
         for the Common Stock on the date in question, then the Fair Market
         Value shall be the closing selling price on the last preceding date for
         which such quotation exists.

                  (iii)If the Common Stock is at the time neither listed on any
         Stock Exchange nor traded on the Nasdaq National Market, then the Fair
         Market Value shall be determined by the Plan Administrator after taking
         into account such factors as the Plan Administrator shall deem
         appropriate.

                  K. INCENTIVE OPTION shall mean an option which satisfies the
requirements of Code Section 422.

                  L. INVOLUNTARY TERMINATION shall mean the termination of the
Service of any individual which occurs by reason of:

                          (i)such individual's involuntary dismissal or
         discharge by the Corporation for reasons other than Misconduct, or

                    (ii)such individual's voluntary resignation following (A) a
         change in his or her position with the Corporation which materially
         reduces his or her duties and responsibilities or the level of
         management to which he or she reports, (B) a reduction in his or her
         level of compensation (including base salary, fringe benefits and
         target bonuses under any corporate-performance based bonus or incentive
         programs) by more than fifteen percent (15%) or (C) a relocation of
         such individual's place of employment by more than fifty (50) miles,
         provided and only if such change, reduction or relocation is effected
         without the individual's consent.

                  M. MISCONDUCT shall mean the commission of any act of fraud,
embezzlement or dishonesty by the Optionee or Participant, any unauthorized use
or disclosure by such person of confidential information or trade secrets of the
Corporation (or any Parent or Subsidiary), or any other intentional misconduct
by such person adversely affecting the business or affairs of the Corporation
(or any Parent or Subsidiary) in a material manner. The foregoing definition
shall not be deemed to be inclusive of all the acts or omissions which the
Corporation (or any Parent or Subsidiary) may consider as grounds for the
dismissal or discharge of any Optionee, Participant or other person in the
Service of the Corporation (or any Parent or Subsidiary).

<PAGE>

                  N. 1934 ACT shall mean the Securities Exchange Act of 1934, as
amended.

                  O. NON-STATUTORY OPTION shall mean an option not intended to
satisfy the requirements of Code Section 422.

                  P. OPTION GRANT PROGRAM shall mean the option grant program in
effect under the Plan.

                  Q. OPTIONEE shall mean any person to whom an option is granted
under the Plan.

                  R. PARENT shall mean any corporation (other than the
Corporation) in an unbroken chain of corporations ending with the Corporation,
provided each corporation in the unbroken chain (other than the Corporation)
owns, at the time of the determination, stock possessing fifty percent (50%) or
more of the total combined voting power of all classes of stock in one of the
other corporations in such chain.

                  S. PARTICIPANT shall mean any person who is issued shares of
Common Stock under the Stock Issuance Program.

                  T. PLAN shall mean the Corporation's 1998 Stock Option/Stock
Issuance Plan, as set forth in this document.

                  U. PLAN ADMINISTRATOR shall mean either the Board or the
Committee acting in its capacity as administrator of the Plan.

                  V. SERVICE shall mean the provision of services to the
Corporation (or any Parent or Subsidiary) by a person in the capacity of an
Employee, a non-employee member of the board of directors or a consultant or
independent advisor, except to the extent otherwise specifically provided in the
documents evidencing the option grant.

                  W. STOCK EXCHANGE shall mean either the American Stock
Exchange or the New York Stock Exchange.

                  X. STOCK ISSUANCE AGREEMENT shall mean the agreement entered
into by the Corporation and the Participant at the time of issuance of shares of
Common Stock under the Stock Issuance Program.

                  Y. STOCK ISSUANCE PROGRAM shall mean the stock issuance
program in effect under the Plan.

                  Z. SUBSIDIARY shall mean any corporation (other than the
Corporation) in an unbroken chain of corporations beginning with the
Corporation, provided each corporation (other than the last corporation) in the
unbroken chain owns, at the time of the determination, stock possessing fifty
percent (50%) or more of the total combined voting power of all classes of stock
in one of the other corporations in such chain.

<PAGE>

                  AA. 10% SHAREHOLDER shall mean the owner of stock (as
determined under Code Section 424(d)) possessing more than ten percent (10%) of
the total combined voting power of all classes of stock of the Corporation (or
any Parent or Subsidiary).





<PAGE>

                                                                    EXHIBIT 10.3

                           PLACEMENT AGENCY AGREEMENT

                                                               September 2, 1998


Spencer Trask Securities Incorporated
535 Madison Avenue
18th Floor
New York, New York 10022


Ladies and Gentlemen:

GraphOn Corporation, a California corporation (the "Company"), hereby confirms
its agreement with Spencer Trask Securities Incorporated, a Delaware corporation
(the "Placement Agent"), as follows (unless the context otherwise requires, as
used herein, the "Company" refers to GraphOn Corporation and each of its
subsidiaries, if any):

1. OFFERING. (a) The Company will offer (the "Offering") for sale through the
Placement Agent and its selected dealers, as exclusive agent for the Company, up
to 45 units (the "Units"), plus an additional 6.75 Units to cover
oversubscriptions, if any. Each Unit will consist of I 00,000 shares (the
"Shares") of the Company's common stock, no par value per share (the "Common
Stock").

(b) Placement of the Units will be made on a "best efforts--all or none" basis
with respect to the first 25 Units (the "Minimum Amount") and on a "best
efforts" basis as to the remaining Units. The minimum subscription for Units
shall be one Unit, however, the Placement Agent may, in its discretion, offer
fractional Units. The Units will be offered commencing on the date of the
Memorandum (as defined below) for a period of 90 days, unless extended by mutual
agreement of the Company and the Placement Agent for an additional 90 days or
terminated earlier as provided herein (the "Offering Period"). The date on which
the Offering shall terminate shall be referred to as the "Termination Date."

(c) Subject to Section 4(c) hereof, subscriptions for the Units will be accepted
by the Company at a price of $100,000 per Unit (the "Offering Price"); provided,
however, that the Company shall not accept subscriptions for, or sell Units to,
any persons or entities who do not qualify as "accredited investors," as such
term is defined in Rule 501 of Regulation D promulgated under the Securities Act
of 1933 (the "Act").

(d) The offering of the Units will be made by the Company solely pursuant to the
Memorandum, which at all times will be in form and substance acceptable to the
Placement Agent and its counsel and contain such legends and other information
as the Placement Agent and its counsel may, from time to time, deem necessary
and desirable to be set forth therein. "Memorandum" as used in this Agreement
means the Company's Confidential Private Placement Memorandum dated September 2,
1998, inclusive of all


<PAGE>



exhibits, and all amendments, supplements and appendices thereto. Unless
otherwise defined, each term used in this Agreement will have the same meaning
as set forth in the Memorandum.

2. REPRESENTATIONS AND WARRANTIES. The Company hereby represents and warrants to
the Placement Agent that:

(a) The Memorandum has been diligently prepared by the Company, in conjunction
with its legal counsel and independent accountants, in conformity with all
applicable laws, and the Offering and the consummation thereof is in compliance
with Regulation D as promulgated under Section 4(2) of the Act ("Regulation D"),
the Act and the requirements of all other rules and regulations (the
"Regulations") of the Securities and Exchange Commission (the "SEC") relating to
offerings of the type contemplated by the Offering, and the applicable
securities laws and the rules and regulations of those jurisdictions wherein the
Units are to be offered and sold. Subject in part to the truth and accuracy of
each Purchaser's representations set forth in Section 5 of the Subscription
Agreement attached as Annex A to the Memorandum, the Units will be offered and
sold pursuant to the registration exemption provided by Regulation D and Section
4(2) and/or Section 4(6) of the Act as a transaction not involving a public
offering and the requirements of any other applicable state securities laws and
the respective rules and regulations thereunder in those jurisdictions in which
the Placement Agent notifies the Company that the Units are being offered for
sale. The Memorandum describes all material aspects, including attendant risks,
of an investment in the Company. The Company has not taken nor will it take any
action which conflicts with the conditions and requirements of, or which would
make unavailable with respect to the Offering, the exemption(s) from
registration available pursuant to Regulation D or Section 4(2) and/or Section
4(6) of the Act and knows of no reason why any such exemption would be otherwise
unavailable to it. None of the Company, its predecessors or affiliates has been
subject to any order, judgment or decree of any court of competent jurisdiction
temporarily, preliminarily or permanently enjoining such person for failing to
comply with Section 503 of Regulation D.

(b) The Memorandum does not include any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they were
made, not misleading. None of the statements, documents, certificates or other
items prepared or supplied by the Company with respect to the transactions
contemplated hereby contains an untrue statement of a material fact or omits a
material fact necessary to make the statements contained therein not misleading.
There is no fact which the Company has not disclosed to the Placement Agent and
its counsel in writing and of which the Company is aware which materially and
adversely affects or could materially and adversely affect the business,
prospects, financial condition, operations, property or affairs of the Company
or any of its subsidiaries.

(c) The Company is a corporation duly organized, validly existing and in good
standing under the laws of its jurisdiction of incorporation. Except as set
forth in the Memorandum,


<PAGE>



the Company has no subsidiaries and does not have an equity interest. in any
other firm, partnership, association or other entity. The Company is duly
qualified to transact business and is in good standing under the laws of each
jurisdiction in which the failure to so qualify would have a material adverse
effect on its business or properties.

(d) The Company has all requisite power and authority (corporate and other) to
conduct its business as presently conducted and as proposed to be conducted (as
described in the Memorandum), to enter into and perform its obligations under
this Agreement and the other agreements contemplated hereby and by the
Memorandum (collectively, the "Transaction Documents") and to issue, sell and
deliver the Shares and to issue and deliver the Agent's Securities (as defined
below). Each of the Transaction Documents has been duly authorized. This
Agreement has been duly executed and delivered and constitutes, and each of the
other Transaction Documents, upon due execution and delivery, will constitute,
valid and binding obligations of the Company, enforceable against the Company in
accordance with their respective terms except (i) as limited by applicable
bankruptcy, insolvency, reorganization, moratorium, and other laws of general
application affecting enforcement of creditors' rights generally, (ii) as
limited by laws relating to the availability of specific performance, injunctive
relief, or other equitable remedies, and (iii) to the extent the indemnification
provisions contained in the Transaction Documents may be limited by applicable
federal or state securities laws.

(e) None of the execution and delivery of, or performance by the Company under
any of the Transaction Documents or the consummation of the transactions herein
or therein contemplated conflicts with or violates, or will result in the
creation or imposition of, any lien, charge or other encumbrance upon any of the
assets of the Company under any agreement or other instrument to which the
Company is a party or by which the Company or its assets may be bound, or any
term of the charter or by-laws of the Company, or any license, permit, judgment,
decree, order, statute, rule or regulation applicable to the Company or any of
its assets.

(f) The Company has authorized and outstanding capital stock as set forth under
the heading "Capitalization" in the Memorandum. All outstanding shares of
capital stock of the Company are duly authorized, validly issued and
outstanding, fully paid and nonassessable. Except as set forth in the
Memorandum: (i) there are no outstanding options, stock subscription agreements,
warrants or other rights permitting or requiring the Company or others to
purchase or acquire any shares of capital stock or other equity securities of
the Company or to pay any dividend or make any other distribution in respect
thereof, (ii) there are no securities issued or outstanding which are
convertible into or exchangeable for any of the foregoing and there are no
contracts, commitments or understandings, whether or not in writing, to issue or
grant any such option, warrant, right or convertible or exchangeable security;
(iii) no shares of stock or other securities of the Company are reserved for
issuance for any purpose; (iv) there are no voting trusts or other contracts,
commitments, understandings, arrangements or restrictions of any kind with
respect to the ownership, voting or transfer of shares of stock or other
securities of the Company, including without limitation, any preemptive rights,
rights of first refusal, proxies


<PAGE>



or similar rights and (v) no person holds a right to require the Company to
register any securities of the Company under the Act or to participate in any
such registration. The issued and outstanding shares of capital stock of the
Company conform to all statements in relation thereto contained in the
Memorandum and the Memorandum describes all material terms and conditions
thereof All issuances by the Company of its securities were exempt from
registration under the Act and any applicable state securities laws.

(g) The Shares and the Agent's Shares (as defined below) have been duly
authorized and, when issued and delivered against payment therefor as provided
in the Transaction Documents, will be validly issued, fully paid and
nonassessable, and will be free and clear of all liens, charges, restrictions,
claims and encumbrances imposed by or through the Company other than as provided
in the Transaction Documents and under applicable state and federal securities
laws. No holder of any of the Shares or the Agent's Securities (as defined
below) will be subject to personal liability solely by reason of being such a
holder, and none of the Shares or the Agent's Securities are subject to
preemptive or similar rights of any shareholder or securityholder of the Company
or an adjustment under the anti-dilution or exercise rights of any holders of
any outstanding shares of capital stock, options, warrants or other rights to
acquire any securities of the Company. A sufficient number of authorized but
unissued shares of Common Stock have been reserved for issuance upon the
exercise of the Agent's Warrants (as defined below).

(h) No consent, authorization or filing of or with any court or governmental
authority is required in connection with the issuance of the Shares or the
Agent's Securities or the consummation of the transactions contemplated herein
or in the other Transaction Documents, except for required filings with the SEC
and applicable "Blue Sky" or state securities commissions relating specifically
to the Offering (all of which filings have been made by, or on behalf of, the
Company, other than those which are required to be made after the First Closing
(as defined below), and which will be duly made on a timely basis).

(i) The financial statements, together with the related notes thereto, of the
Company included in the Memorandum present fairly the financial position of the
Company as of the respective dates specified therein and the results of its
operations and changes in financial position for the respective periods covered
thereby, subject in the case of unaudited ' interim financial statements to
normal year-end adjustments. Such financial statements and related notes were
prepared in accordance with generally accepted accounting principles applied on
a consistent basis throughout the periods indicated, except the unaudited
financial statements may not contain all footnotes required by generally
accepted accounting principles. Except as set forth in such financial statements
or in the Memorandum, the Company has incurred no material liabilities of any
kind, whether accrued, absolute, contingent or otherwise or entered into any
material transactions other than (i) liabilities incurred in the ordinary course
of business subsequent to June 30, 1998, and (ii) obligations under contracts
and commitments incurred in the ordinary course of business and not required
under generally accepted principles to be reflected in the financial statements,
which, in both cases, individually or in the aggregate, are not material to the
financial condition or operating results of the Company. The other financial and


<PAGE>



statistical information with respect to the Company and any pro forma
information and related notes included in the Memorandum present fairly the
information shown therein on a basis consistent with the audited and unaudited
financial statements of the Company included in the Memorandum. The Company does
not know of any facts, circumstances or conditions adversely affecting its
operations, earnings or prospects which have not been fully disclosed in the
Memorandum.

0) The conduct of business by the Company as presently and proposed to be
conducted is not subject to continuing oversight, supervision, regulation or
examination by any governmental official or body of the United States or any
other jurisdiction wherein the Company conducts or proposes to conduct such
business, except as described in the Memorandum and except such regulation as is
applicable to commercial enterprises generally. The Company has obtained all
requisite licenses, permits and other governmental authorizations to conduct its
business as presently conducted, the lack of which could materially and
adversely affect the business, properties, prospects or financial condition of
the Company, and the Company believes it can obtain, without undue burden or
expense, any similar authority for the conduct of its business as proposed to be
conducted.

(k) No default by the Company or, to the best knowledge of the Company, any
other party exists in the due performance under any of the agreements referred
to in the Memorandum to which the Company is a party or to which any of its
assets is subject (collectively, the "Company Agreements"). The Company
Agreements are the only material agreements to which the Company is bound or by
which its assets are subject, are accurately and fairly described in the
Memorandum and are in full force and effect in accordance with their respective
terms.

(1) Except as set forth in the Memorandum, there are no actions, proceedings,
claims or investigations before or by any court or governmental authority (or
any state of facts which management of the Company has concluded could give rise
thereto) pending or, to the best knowledge of the Company, threatened against
the Company, or involving its assets or any of its officers or directors which,
if determined adversely to the Company or such officer or director, could result
in any material adverse change in the condition (financial or otherwise) or
prospects of the Company or adversely affect the transactions contemplated by
this Agreement or the other Transaction Documents or the enforceability thereof.

(m) The Company is not in violation of. (i) its charter or by-laws; (ii) any
indenture, mortgage, deed of trust, note or other agreement or instrument to
which the Company is a party or by which it is or may be bound or to which any
of its assets may be subject; (iii) any statute, rule or regulation; or (iv) any
judgment, decree or order applicable to the Company, which violation or
violations individually, or in the aggregate, might result in any material
adverse change in the condition (financial or otherwise) or prospects of the
Company.



<PAGE>



(n) The Company does not own any real property in fee simple except as disclosed
in the Memorandum, and the Company has good and marketable title to all property
(real and personal, tangible and intangible) owned by it, free and clear of all
security interests, liens and encumbrances, except such as are described in the
Memorandum.

(o) The Company owns all right, title and interest in, or possesses adequate
and enforceable rights to use, all patents, patent applications, trademarks,
trade names, service marks, copyrights, rights, licenses, franchises, trade
secrets, confidential information, processes and formulations necessary for the
conduct of its business, except as otherwise described in the Memorandum
(collectively, the "Intangibles"). Except as set forth in the Memorandum, to the
best knowledge of the Company, the Company has not infringed upon the rights of
others with respect to the Intangibles and the Company has not received notice
that it has or may have infringed or is infringing upon the rights of others
with respect to the Intangibles, or any notice of conflict with the asserted
rights of others with respect to the Intangibles which could, individually or in
the aggregate, materially and adversely affect the condition (financial or
otherwise) or prospects of the Company. Except as set forth in the Memorandum,
to the best knowledge of the Company, no others have infringed upon the
Intangibles.

(P) Subsequent to the respective dates as of which information is given in the
Memorandum, the Company has operated its business diligently and only in the
ordinary course as theretofore conducted and, except as may otherwise be set
forth in the Memorandum, there has been no: (i) material adverse change in the
condition (financial or otherwise) or prospects of the Company; (ii) transaction
otherwise than in the ordinary course of business; (iii) issuance of any
securities (debt or equity) or any rights to acquire any such securities; (iv)
damage, loss or destruction, whether or not covered by insurance, materially and
adversely affecting any asset or property of the Company; or (v) agreement to
permit any of the foregoing.

(q) The Company has filed, on a timely basis, each Federal, state, local and
foreign tax return which is required to be filed, or has requested an extension
therefor, and has paid all taxes and all related assessments, penalties and
interest to the extent that the same have become due.

(r) The Company is not obligated to pay, and has not obligated the Placement
Agent to pay, a finder's or origination fee in connection with the Offering and
agrees to indemnify the Placement Agent from any such claim made by any other
person. The Company has not offered for sale or solicited offers to purchase the
Units except for negotiations with the Placement Agent. No other person has any
right to participate in any offer, sale or distribution of the Company's
securities to which the Placement Agent's rights, described herein, shall apply.

(s) The Company has and will maintain appropriate casualty and liability
insurance coverage, in scope and amounts reasonable and customary for similar
businesses.



<PAGE>



3. PLACEMENT AGENT APPOINTMENT AND COMPENSATION. (a) The Company hereby appoints
the Placement Agent and its selected dealers as its exclusive agent in
connection with the Offering. The Company has not and will not make, or permit
to be made, any offers or sales of the Units other than through the Placement
Agent without its prior written consent. The Placement Agent has no obligation
to purchase any of the Units. The agency of the Placement Agent hereunder shall
continue until the later of the Termination Date or the Final Closing (as
defined below).

(b) The Company has caused to be delivered to the Placement Agent copies of the
Memorandum and has consented, and hereby consents, to the use of such copies for
the purposes permitted by the Act and applicable securities laws, and hereby
authorizes the Placement Agent and its agents, employees and selected dealers to
use the Memorandum in connection with the sale of the Units until the
Termination Date, and no other person or entity is or will be authorized by the
Company to give any information or make any representations other than those
contained in the Memorandum or to use any offering materials other than those
contained in the Memorandum in connection with the sale of the Units.

(c) The Company will cooperate with the Placement Agent by making available to
its representatives such information as may be requested in making a reasonable
investigation of the Company and its affairs and shall provide access to such
employees as shall be reasonably requested. Prior to the First Closing, the
Company shall provide, at its own expense, background checks, credit or similar
reports on such key management persons as the Placement Agent shall reasonably
request. Prior to the First Closing, the Company shall make available to a
credit reporting firm such materials relating to the Company, and shall provide
such firm with access to such employees, as shall be reasonably requested by the
Placement Agent.

(d) The Company shall pay to the Placement Agent a placement fee equal to ten
percent (IO%) of the Offering Price of all the Units sold and for which net
proceeds are disbursed to the Company in the Offering (the "Placement Agent's
Fee") and a non-accountable expense allowance of three percent (3%) of the
Offering Price of all the Units sold and for which net proceeds are disbursed to
the Company in the Offering (the "Expense Allowance"), a non-refundable portion
of which equal to $25,000 has been paid to the Placement Agent, which amount
shall be credited toward the Expense Allowance at the First Closing. Payment of
the proportional amounts of the Placement Agent's Fee and the Expense Allowance
will be made out of the proceeds of subscriptions for the Units sold at each
Closing. The Placement Agent may direct all such amounts to be paid directly
from the escrow account established pursuant to Section 4 hereof.

(e) As additional compensation hereunder, at each Closing (as defined below),
the Company shall sell to the Placement Agent or its designees for an aggregate
purchase price of $1.00, warrants (the "Agent's Warrants") to purchase, at an
exercise price of $ 1.00 per share, a number of shares of Common Stock equal to
twenty percent (20%) of the Shares contained in the Units sold in the Offering
(the "Agent's Shares"; and, collectively


<PAGE>



with the Agent's Warrants, the "Agent's Securities"). The Agent's Warrants shall
be exercisable until the later of the date seven years after the date of the
Final Closing or the date which is three years after the closing date of the
initial public offering of the Company's securities within such seven year
period (the "Warrant Exercise Term"). If the Company at any time has any
securities registered under the Act or the Securities Exchange Act of 1934 (the
"1934 Act"), the Company agrees to register the Agent's Securities promptly on
two separate occasions, at the request of the holders of a majority of the
Agent's Securities made at any time during the Warrant Exercise Tenn. The
Company shall pay all expenses, other than underwriters' discounts and
commissions, relating to registering the Agent's Securities covered by the first
request, and the holder(s) of such Agent's Securities shall pay all registration
expenses arising from the second registration. Notwithstanding the foregoing, if
the Company shall furnish to holders of the Agent's Securities requesting a
registration statement pursuant to their demand rights, a certificate signed by
the Chief Executive Officer of the Company stating that, in the good faith
judgment of the Board of Directors of the Company, it would be seriously
detrimental to the Company and its shareholders for such registration statement
to be filed and it is therefore essential to defer the filing of such
registration statement, the Company shall have the right to defer taking action
with respect to such filing for a period of not more than 120 days after receipt
of the request of the holders of the Agent's Securities provided, however, that
the Company may not utilize this right more than once in any twelve-month
period. Prior to the First Closing, the Company and Placement Agent shall enter
into a warrant agreement (the "Warrant Agreement") which shall contain such
terms and other customary provisions including piggyback registration rights and
anti-dilution provisions in form and substance satisfactory to the Placement
Agent and the Company.

(f) In the event that any purchaser of Units subsequently invests in the Company
at any time within the earlier of (i) five years from the later of the
Termination Date or the First Closing (if any) or (ii) the effectiveness of an
initial public offering of the Company's securities, the Company shall pay to
the Placement Agent cash and warrant compensation with respect to such
subsequent investments as it paid with respect to the sale of the Units in the
Offering (I.E., 10% of per share price paid and 20% warrant coverage).

(g) At the First Closing, the Company shall enter into an agreement which will
provide that, in the event of an initial public offering of securities of the
Company or its shareholders, the Placement Agent shall have the right to
participate, at its option, for up to five percent (5%) of such offering
(including any over-allotment option) as a member of the underwriting or selling
group unless such participation unreasonably interferes (in the reasonable
judgment of the underwriters) with the successful completion of such initial
public offering, or in the event of such asserted interference as a member of
the selling group. Additionally, in the event the Placement Agent introduces the
Company to an underwriter (pursuant to the Company's request for such
introduction) which effects an initial public offering of the Company's
securities, upon the closing of such offering, the Placement Agent shall be
entitled to a fee equal to one percent (1%) of the gross proceeds of such
offering. The Placement Agent will, at the request of the Company, document any
such introductions.


<PAGE>



(h) At the First Closing, the Company shall enter into a consulting agreement
with the Placement Agent which shall provide that the Company shall pay the
Placement Agent a one-time fee of $30,000, due and payable at the First Closing,
for the Placement Agent's agreement to provide such investment banking advisory
services for two years as the Company may from time to time request, such
services to include advice relating to corporate finance, strategic planning,
financial planning and relationships with banks, securities firms and financial
institutions.

4. SUBSCRIPTION AND CLOSING PROCEDURES. (a) Each prospective purchaser will be
required to complete and execute two copies of the Combined Signature Page to
the Subscription Agreement and Registration Rights Agreement, which agreements
shall be in the forms annexed to the Memorandum ("Subscription Documents"),
which will be forwarded or delivered to the Placement Agent at the Placement
Agent's offices at the address set forth in Section 11I hereof, together with
the subscriber's check or good funds in the full amount of the Offering Price
for the number of Units desired to be purchased.

(b) All funds for subscriptions received from the offering of the Units will be
promptly forwarded by the Placement Agent or the Company, if received by it, to
and deposited into the escrow account (the "Escrow Account") established for
such purpose with United States Trust Company of New York (the "Escrow Agent").
All such funds for subscriptions will be held in the Escrow Account pursuant to
the terms of the Escrow Agreement among the Company, the Placement Agent and the
Escrow Agent. The Company will pay all fees related to the establishment and
maintenance of the Escrow Account. Any interest accruing on funds in the Escrow
Account shall be utilized first to reimburse the Company for such fees and the
balance shall be distributed in equal proportion to the Company and the
Placement Agent. Subject to the receipt of such subscriptions for the Minimum
Amount, the Company will either accept or reject the Subscription Documents in a
timely fashion and at each 'Closing will countersign the Subscription Documents
and provide duplicate copies of such agreements to the Placement Agent for
distribution to the subscribers. The Company will give notice to the Placement
Agent of its acceptance or rejection of each subscription. The Company will
promptly return to subscribers incomplete, improperly completed, improperly
executed and rejected subscriptions and give written notice thereof to the
Placement Agent upon such return.

(c) If subscriptions for at least the Minimum Amount have been accepted prior to
the Termination Date, the funds therefor have been collected by the Escrow Agent
and all of the conditions set forth elsewhere in this Agreement are fulfilled, a
closing shall be held promptly with respect to the Units sold (the "First
Closing"). Thereafter, the remaining Units will continue to be offered and sold
until the Termination Date. Additional closings ("Closings") may from time to
time be conducted at times mutually agreeable with respect to additional Units
sold with the final closing ("Final Closing") to occur not later than IO days
from the earlier of the Termination Date or the sale of all Units offered.
Delivery of payment for the accepted subscriptions for Units from the funds held
in the Escrow Account will be made at each Closing at the Placement Agent's
offices against delivery of the Units by the Company at the address set forth in
Section I I hereof (or at such other


<PAGE>



place as may be mutually agreed upon between the Company and the Placement
Agent). Executed certificates for the Shares constituting the Units and the
Agent's Warrants will be in such authorized denominations and registered in such
names as the Placement Agent may request on or before the second full business
day prior to the date of each Closing ("Closing Date"), and will be made
available to the Placement Agent for checking and packaging at the Placement
Agent's office at least one full business day prior thereto.

(d) If Subscription Documents for the Minimum Amount have not been received and
accepted by the Company on or before the Termination Date for any reason, the
Offering will be terminated, no Units will be sold, and the Escrow Agent will,
at the request of the Company and the Placement Agent, cause all monies received
from subscribers for the Units to be promptly returned to such subscribers
without interest, penalty, expense or deduction. Any interest accruing on such
funds shall be distributed as set forth in Section 4(b).


5. FURTHER COVENANTS. The Company hereby covenants and agrees that:

(a) Except with the prior written consent of the Placement Agent, the Company
shall not, at any time prior to the Final Closing, take any action which would
cause any of the representations and warranties made by it in this Agreement not
to be complete and correct on and as of each Closing Date with the same force
and effect as if such representations and warranties had been made on and as of
each such date, including, without limitation, incurring any material
indebtedness, disposing of any material assets or making any material
acquisition or change in its business or operations as described in the
Memorandum.

(b) If, at any time prior to the Final Closing, any event shall, to the
Company's knowledge, occur which does or may materially affect the Company or as
a result of which it might become necessary to amend or supplement the
Memorandum so that the representations and warranties herein remain true, or in
case it shall, in the opinion of counsel to the Placement Agent, be necessary to
amend or supplement the Memorandum to comply with Regulation D or any other
applicable securities laws or regulations, the Company will promptly notify the
Placement Agent and shall, at its sole cost, prepare and furnish to the
Placement Agent copies of appropriate amendments and/or supplements in such
quantities as the Placement Agent may request. The Company will not at any time,
whether before or after the Final Closing, prepare or use any amendment or
supplement to the Memorandum of which the Placement Agent will not previously
have been advised and furnished with a copy, or to which the Placement Agent or
its counsel will have objected in writing or orally (confirmed in writing within
24 hours), or which is not in compliance with the Act, the Regulations and other
applicable securities laws. As soon as the Company is advised thereof, the
Company will advise the Placement Agent and its counsel, and confirm the advice
in writing, of any order preventing or suspending the use of the Memorandum, or
the suspension of the qualification or registration of the Shares for offering
or the suspension of any exemption for such qualification or registration of the


<PAGE>



Shares for offering in any jurisdiction, or of the institution or threatened (in
writing) institution of any proceedings for any of such purposes, and the
Company will use its best efforts to prevent the issuance of any such order and,
if issued, to obtain as soon as reasonably possible the lifting thereof.

(c) The Company shall comply with the Act, the Regulations, the Securities
Exchange Act of 1934 and the rules and regulations thereunder, and all
applicable state securities laws and the rules and regulations thereunder in the
states in which counsel to the Company has advised the Company that the Units
are qualified or registered for sale or exempt from such qualification or
registration, so as to permit the continuance of the sales of the Units, and
will file with the SEC, and shall promptly thereafter forward to the Placement
Agent, any and all reports on Form D as are required.

(d) The Company shall use its reasonable best efforts to qualify the Units for
sale under the securities laws of such jurisdictions as may be mutually agreed
to by the Company and the Placement Agent, and the Company will make such
applications and furnish information as may be required for such purposes,
provided that the Company will not be required to qualify as a foreign
corporation in any jurisdiction. The Company will, from time to time, prepare
and file such statements and reports as are or may be required to continue such
qualifications in effect for so long a period as the Placement Agent may
reasonably request. The Company shall pay all filing fees, costs and legal fees
for Blue Sky services and related filings and expenses of counsel with respect
to Blue Sky qualifications.

(e) The Company shall place a legend on the certificates representing the Shares
issued to subscribers stating that the securities evidenced thereby have not
been registered under the Act or applicable state securities laws and setting
forth or referring to the applicable restrictions on transferability and sale of
such securities under the Act and applicable state laws.

(f) The Company shall apply the net proceeds from the sale of the Units to fund
its working capital requirements and for such other purposes as specifically
described under "Use of Proceeds" in the Memorandum. Except as specifically set
forth in the Memorandum, the net proceeds of the Offering shall not be used to
repay indebtedness to officers, directors or shareholders of the Company without
the prior written consent of the Placement Agent.

(g) During the Offering Period, the Company shall make available for review by
prospective purchasers of the Units during normal business hours at the
Company's offices, upon their request, copies of the Company Agreements to the
extent that such shall not violate any obligation on the part of the Company to
maintain the confidentiality thereof. The Company may request that a prospective
purchaser of Units sign a non-disclosure agreement prior to review of any of the
Company Agreements if the Company, in its reasonable judgment, determines that
disclosure thereof to a particular prospective purchaser may be detrimental to
the Company. The Company shall afford each prospective purchaser of Units the
opportunity to ask questions of and receive answers


<PAGE>



from an officer of the Company concerning the terms and conditions of the
Offering and the opportunity to obtain such other additional information
necessary to verify the accuracy of the Memorandum to the extent it possesses
such information or can acquire it without unreasonable expense.

(h) Except with the prior written consent of the Placement Agent, the Company
shall not, at any time prior to the Final Closing, engage in or commit to engage
in any transaction outside the ordinary course of business or issue, agree to
issue or set aside for issuance any securities (debt or equity) or any rights to
acquire any such securities except as contemplated by the Memorandum.

(i) For a period of the earlier of five years from the First Closing or the
closing of an initial public offering, the Company shall deliver (i) to the
Placement Agent and the Company's shareholders annual audited financial
statements setting forth fairly the financial position of the Company, (ii) to
the Placement Agent quarterly unaudited financial statements including both a
balance sheet and statement of income (including year over year quarterly
comparisons), (iii) to the Placement Agent and the investors in the Offering a
quarterly report of the progress and status of the Company and an annual report
setting forth clearly the financial position, progress and status of the
Company, (iv) to the Placement Agent a copy of a list of its shareholders as and
when so requested and (v) to the Placement Agent such additional information and
documents concerning the business and financial condition of the Company as the
Placement Agent may from time to time reasonably request.

(j) The Company shall pay all reasonable expenses incurred in connection with
the preparation and printing of all necessary offering documents and instruments
related to the Offering and the issuance of the Shares, the Agent's Shares and
the Agent's Warrants and will also pay the Company's own expenses for accounting
fees, legal fees and other costs involved with the Offering. The Company will
provide at its own expense such quantities of the Memorandum and other documents
and instruments relating to the Offering as the Placement Agent may reasonably
request.

(k) Prior to the Termination Date, neither the Company nor any person or entity
acting on its behalf will negotiate with any other placement agent or
underwriter with respect to a private or public offering of the Company's or any
subsidiary's debt or equity securities. Neither the Company nor anyone acting on
its behalf will, until the Termination Date, without the prior written consent
of the Placement Agent, offer for sale to, or solicit offers to subscribe for,
Units or other securities of the Company from, or otherwise approach or
negotiate in respect thereof with, any other person. Prior to the second
anniversary of the First Closing, and subject to Section 6(i) hereof, the
Company will not, without the Placement Agent's prior written consent, sell any
securities, or any rights to acquire any securities, of the Company (except
pursuant to any existing options, warrants and rights and option plans described
in the Memorandum) at a price less than $ 1.00 per share or create any
additional classes or series of capital stock.



<PAGE>



(l) The following officers of the Company will continue in their current
positions following the Offering, and prior to the First Closing, the Company
will enter into employment agreements reasonably acceptable to the Placement
Agent with such persons: Walter Keller and Robin Ford. Such agreements shall set
forth terms of two (2) years, reasonable compensation and expense provisions,
non-competition agreements and other reasonable terms and conditions. The
Company may establish a management incentive compensation plan reasonably
acceptable to and with the prior written consent of the Placement Agent.

(m) The Company shall secure prior to the First Closing and thereafter maintain
"key man" life insurance for the benefit of the Company in the amount of
$1,000,000 on Walter Keller, the President of the Company.

(n) The Placement Agent shall have the right, for a period of the earlier of
five (5) years from the First Closing or the effectiveness of an initial public
offering, to designate one (1) person reasonably acceptable to the Company to
be, at the Placement Agent's sole discretion, a nominee for director of the
Company. The Principal Shareholders (as defined below) at the First Closing
shall agree to vote in favor of such nominee and the Company shall use its best
efforts (which shall include, without limitation, the solicitation of proxies on
behalf of such nominee) to elect such nominee to the Board of Directors. The
Board of Directors shall consist of at least five (5) but not more than seven
(7) directors. The Company further agrees that it shall hold "in person"
directors' meetings no less frequently than quarterly. Notice of regular or
special meetings as may be required to be given to directors by statute or the
Company's bylaws shall be given to the Placement Agent. The Company agrees to
indemnify and hold the Placement Agent harmless against any and all claims,
actions, awards and judgments arising solely out of the attendance and
participation of the Placement Agent's designated nominee at any such meeting
described herein. In the event the Company maintains a liability insurance
policy affording coverage for the acts of its officers and directors, it agrees,
if possible, to include the Placement Agent's designated nominee as an insured
under such policy. For the purposes hereof, a "Principal Shareholder" shall mean
any person, entity or group that beneficially owns, directly or indirectly, five
percent (5%) of the Company's capital stock immediately preceding the First
Closing and all executive officers and directors of the Company.

6. CONDITIONS OF PLACEMENT AGENT'S OBLIGATIONS. The obligations of the Placement
Agent at each Closing hereunder are subject to the fulfillment, at or before
each such Closing, of the following additional conditions:

(a) Each of the representations and warranties of the Company shall be true and
correct when made on the date hereof and on and as of each Closing Date as
though made on and as of each Closing Date.

(b) The Company shall have performed and complied with all agreements, covenants
and conditions required to be performed and complied with by it under the
Transaction Documents at or before each Closing.


<PAGE>



(c) No order suspending the use of the Memorandum or enjoining the offering or
sale of the Units shall have been issued, and no proceedings for that purpose or
a similar purpose shall have been initiated or pending, or, to the best of the
Company's knowledge, are contemplated or threatened.

(d) As of the First Closing, the Company will have an authorized capitalization
of not more than 50,000,000 shares of Common Stock and 5,000,000 shares of
preferred stock, no par value, of which not more than 7,028,500 shares of Common
stock shall be issued and outstanding or issuable under any convertible or
exchangeable securities, options, warrants or similar rights outstanding or
reserved for issuance (excluding (i) up to 475,000 shares issuable upon
conversion of the Convertible Note (as defined in the Memorandum), (ii) up to
300,000 shares issuable upon conversion of the Notes (as defined in the
Memorandum) and (iii) up to 150,000 shares issuable upon exercise of warrants
issued to Walter Keller and Spencer Trask Investors on the date hereof). No
shares of preferred stock shall be issued and outstanding or issuable under
securities or rights.

(e) The Placement Agent shall have received certificates of the Chief Executive
Officer and Chief Financial Officer of the Company, dated as of each Closing
Date, certifying, in such detail as the Placement Agent may reasonably request,
as to the fulfillment of the conditions set forth in subparagraphs (a), (b), (c)
and (d) above.

(f) The Company shall have delivered to the Placement Agent a certificate
regarding incumbency of officers and the following (i) a currently dated good
standing certificate from the secretary of state of its jurisdiction of
incorporation and (ii) certified copies of the Company's bylaws and resolutions
of the Company's Board of Directors approving this Agreement and the other
Transaction Documents, and the transactions and agreements contemplated by this
Agreement and the other Transaction Documents.

(g) On or prior to the date hereof and at each Closing, the independent auditors
for the Company shall have provided a letter confirming such matters as the
Placement Agent may reasonably request; and (ii) the Chief Executive Officer and
the Chief Financial Officer of the Company shall have provided a certificate to
the Placement Agent confirming that there have been no material and adverse
changes in the condition (financial or otherwise) or prospects of the Company
from the date of the financial statements included in the Memorandum, the
absence of undisclosed liabilities and such other matters relating to the
financial condition and prospects of the Company that the Placement Agent may
reasonably request.

(h) At each Closing, the Company shall have (i) paid to the Placement Agent, the
Placement Agent's Fee and the Expense Allowance as set forth in Section 3(d)
hereof and (iii) executed and delivered to the Placement Agent the Agent's
Warrants in an amount equal to twenty percent (20%) of the Shares contained in
the Units sold.

(i) On or prior to the First Closing, each of the Company's officers, directors
and shareholders owning, beneficially or of record, five percent (5%) or more of
the Common


<PAGE>



Stock outstanding immediately prior to the First Closing shall have agreed in
writing not to sell, transfer or otherwise dispose of more than fifteen percent
(15%) of the Company's securities beneficially owned by them or issuable to them
pursuant to the exercise of options, warrants or conversion of other securities
without the Placement Agent's prior written consent, which consent shall not be
unreasonably withheld, until the second anniversary of the First Closing, except
that such persons may make transfers to a parent, spouse, sibling or descendent,
or to a trust for the benefit of any of the foregoing persons; provided,
however, that such transfers shall be subject to this Section 6(i) and that the
Placement Agent may require that any such permitted transfer be made subject to
a voting agreement pursuant to which the transferring shareholder retains the
right to vote all transferred shares until the second anniversary of the First
Closing. In addition, if within two years of the First Closing, the Company
registers any of its securities under the Act which registration is effective,
the officers, directors and present shareholders and any permitted transferees
will extend the terms of the "lock-up" set forth in this Section 6(i) for a
period of twelve months from completion of the offering contemplated thereby or
such longer or shorter period as the underwriter shall require; provided,
however, that in the event that such registration is an underwritten
registration and the underwriter shall agree, the Company may permit such
officers, directors and present shareholders to sell shares in such offering
subject to the rights of investors under the Registration Rights Agreement.

(j) There shall have been delivered to the Placement Agent a signed opinion of
counsel to the Company, dated as of each Closing Date, substantially in the form
of Exhibit A hereto and otherwise in form and substance satisfactory to counsel
to the Placement Agent.

(k) All proceedings taken at or prior to each Closing in connection with the
authorization, issuance and sale of the Units and the Agent's Warrants will be
reasonably satisfactory in form and substance to the Placement Agent and its
counsel, and such counsel shall have been furnished with all such documents,
certificates and opinions as they may reasonably request upon reasonable prior
notice in connection with the transactions contemplated hereby.

(l) On or prior to the First Closing, the Principal Shareholders shall agree to
vote their shares of Common Stock in favor of any directors nominated by the
investors in the Offering pursuant to Section 9 of the Subscription Agreement at
any meeting of the Company's shareholders or pursuant to any written consent in
which the election of such directors is submitted to a vote of the Company's
shareholders (and to remove directors as necessary to create vacancies
therefor). The obligations of the Principal Shareholders under this Section 6(l)
shall terminate upon the registration of each such investor's shares pursuant to
the Registration Rights Agreement; provided that an investor's shares shall be
deemed to be so registered if such investor elects not to include shares in any
registration statement in which such shares are entitled to be included pursuant
to the Registration Rights Agreement. Additionally, on or prior to the First
Closing, the Principal Shareholders shall agree to vote in favor of the
Placement Agent's nominee to the Board of Directors.



<PAGE>



7. INDEMNIFICATION. (a) The Company will (i) indemnify and hold harmless the
Placement Agent, its selected dealers and their respective officers, directors,
employees and each person, if any, who controls the Placement Agent within the
meaning of the Act and such selected dealers (each an "Indemnitee") against, and
pay or reimburse each Indemnitee for, any and all losses, claims, damages,
liabilities or expenses whatsoever (or actions or proceedings or investigations
in respect thereof), joint or several (which will, for all purposes of this
Agreement, include, but not be limited to, all costs of defense and
investigation and all reasonable attorneys' fees, including appeals), to which
any Indemnitee may become subject, under the Act or otherwise, in connection
with the offer and sale of the Units, whether such losses, claims, damages,
liabilities or expenses shall result from any claim of any Indemnitee or any
third party; and (ii) reimburse each Indemnitee for any legal or other expenses
reasonably incurred in connection with investigating or defending against any
such loss, claim, action, proceeding or investigation; provided, however, that
the Company will not be liable in any such case to the extent that any such
loss, claim, damage, liability or expense results from (A) an untrue statement
or alleged untrue statement of a material fact made in the Memorandum, or an
omission or alleged omission to state therein a material fact required to be
stated therein or necessary to make the statements therein not misleading, in
reliance upon and in conformity with written information furnished to the
Company by the Placement Agent or any such controlling persons specifically for
use in the preparation thereof, or (B) any violations by the Placement Agent of
the Act or state securities laws which does not result from a violation thereof
by the Company or any of its affiliates. In addition to the foregoing agreement
to indemnify and reimburse, the Company will indemnify and hold harmless each
Indemnitee against any and all losses, claims, damages, liabilities or expenses
whatsoever (or actions or proceedings or investigations in respect thereof),
joint or several (which shall for all purposes of this Agreement, include, but
not be limited to, all costs of defense and investigation and all reasonable
attorneys' fees, including appeals) to which any Indemnitee may become subject
insofar as such costs, expenses, losses, claims, damages or liabilities arise
out of or are based upon the claim of any person or entity that he or it is
entitled to broker's or finder's fees from any Indemnitee in connection with the
Offering. The foregoing indemnity agreements will be in addition to any
liability which the Company may otherwise have.

(b) The Placement Agent will indemnify and hold harmless the Company, its
officers, directors, employees and each person, if any, who controls the Company
within the meaning of the Act against, and pay or reimburse any such person for,
any and all losses, claims, damages or liabilities or expenses whatsoever (or
actions, proceedings or investigations in respect thereof) to which the Company
or any such person may become subject, under the Act or otherwise, whether such
losses, claims, damages, liabilities or expenses shall result from any claim of
the Company, any of its officers, directors, employees, any person who controls
the Company within the meaning of the Act or any third party, insofar as such
losses, claims, damages or liabilities are based upon any untrue statement or
alleged untrue statement of any material fact contained in the Memorandum, but
only with reference to information contained in the Memorandum relating to the
Placement Agent fumished in writing to the Company by the Placement Agent,
specifically


<PAGE>



for use in the preparation thereof. The Placement Agent will reimburse the
Company or any such person for any legal or other expenses reasonably incurred
in connection with investigating or defending against any such loss, claim,
damage, liability or action, proceeding or investigation to which such indemnity
obligation applies. The foregoing indemnity agreements will be in addition to
any liability which the Placement Agent may otherwise have.

(c) Promptly after receipt by an indemnified party under this Section 7 of
notice of the commencement of any action, claim, proceeding or investigation
("Action"), such indemnified party, if a claim in respect thereof is to be made
against the indemnifying party under this Section 7, will notify the
indemnifying party of the commencement thereof, but the omission to so notify
the indemnifying party will not relieve it from any liability which it may have
to any indemnified party under this Section 7 except to the extent the
indemnifying party has been substantially prejudiced by such omission. The
indemnifying party will be entitled to participate in, and, to the extent that
it may wish, jointly with any other indemnifying party, to assume the defense
thereof subject to the provisions herein stated, with counsel reasonably
satisfactory to such indemnified party. The indemnified party will have the
right to employ separate counsel in any such Action and to participate in the
defense thereof, but the fees and expenses of such counsel will not be at the
expense of the indemnifying party if the indemnifying party has assumed the
defense of the Action with counsel reasonably satisfactory to the indemnified
party, provided, however, that if the indemnified party shall be requested by
the indemnifying party to participate in the defense thereof or shall have
concluded in good faith and specifically notified the indemnifying party either
that there may be specific defenses available to it which are different from or
additional to those available to the indemnifying party or that such Action
involves or could have a material adverse effect upon it with respect to matters
beyond the scope of the indemnity agreements contained in this Agreement, then
the counsel representing it, to the extent made necessary by such defenses,
shall have the right to direct such defenses of such Action on its behalf and in
such case the fees and expenses of such counsel in connection with any such
participation or defenses shall be paid by the indemnifying party. No settlement
of any Action against an indemnified party will be made without the consent of
the indemnifying party and the indemnified party, which consent shall not be
unreasonably withheld or delayed in light of all factors of importance to such
party and no indemnifying party shall be liable to indemnify any person for any
settlement of any such claim effected without such indemnifying party's consent.

8. CONTRIBUTION. To provide for just and equitable contribution, if (i) an
indemnified party makes a claim for indemnification pursuant to Section 7 hereof
and it is finally determined, by a judgment, order or decree not subject to
further appeal that such claims for indemnification may not be enforced, even
though this Agreement expressly provides for indemnification in such case; or
(ii) any indemnified or indemnifying party seeks contribution under the Act, the
1934 Act, or otherwise in a situation in which it would be entitled to
indemnification under Section 7, then each indemnifying party shall contribute
to such amount paid or payable by such indemnified party in such proportion as
is appropriate to reflect not only such relative benefits but also the relative
fault of the


<PAGE>



Company on the one hand and the Placement Agent on the other in connection with
the statements or omissions which resulted in such losses, claims, damages,
liabilities or expenses (or actions in respect thereof), as well as any other
relevant equitable considerations. The relative benefits received by the Company
on the one hand and the Placement Agent on the other shall be deemed to be in
the same proportion as the total net proceeds from the Offering (before
deducting expenses) received by the Company bear to the total commissions and
fees received by the Placement Agent. The relative fault, in the case of an
untrue statement, alleged untrue statement, omission or alleged omission will be
determined by, among other things, whether such statement, alleged statement,
omission or alleged omission relates to information supplied by the Company or
by the Placement Agent, and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement, alleged
statement, omission or alleged omission. The Company and the Placement Agent
agree that it would be unjust and inequitable if the respective obligations of
the Company and the Placement Agent for contribution were determined by pro rata
allocation of the aggregate losses, liabilities, claims, damages and expenses or
by any other method or allocation that does not reflect the equitable
considerations referred to in this Section 8. No person guilty of a fraudulent
misrepresentation (within the meaning of Section 11 (f) of the Act) will be
entitled to contribution from any person who is not guilty of such fraudulent
misrepresentation. For purposes of this Section 8, each person, if any, who
controls the Placement Agent within the meaning of the Act will have the same
rights to contribution as the Placement Agent, and each person, if any, who
controls the Company within the meaning of the Act will have the same rights to
contribution as the Company, subject in each case to the provisions of this
Section 8. Anything in this Section 8 to the contrary notwithstanding, no party
will be liable for contribution with respect to the settlement of any claim or
action effected without its written consent. This Section 8 is intended to
supersede, to the extent permitted by law, any right to contribution under the
Act, the 1934 Act or otherwise available.

9. TERMINATION. (a) The Offering may be terminated by the Placement Agent at any
time prior to the expiration of the Offering Period as contemplated in Section
1(b) hereof ("Expiration Date") in the event that (i) any of the representations
or warranties of the Company contained herein, in the Memorandum or in any other
Transaction Document shall prove to have been false or misleading in any
material respect when made or deemed made, (ii) the Company shall have failed to
perform any of its material obligations hereunder, (iii) the Placement Agent
shall determine that it is reasonably likely that any of the conditions to
Closing set forth herein will not, or cannot, be satisfied or (iv) there shall
occur any event which could adversely affect the transactions contemplated
hereby or the other Transaction Documents or the ability of the parties to
perform thereunder. In the event of any such termination occasioned by or
arising out of or in connection with any breach or failure hereunder on the part
of the Company, the Placement Agent shall be entitled to receive, in addition to
other rights and remedies it may have hereunder, at law or otherwise, an amount
equal to the sum of. (A) all Placement Agent's Fees earned through the
Termination Date, (B) up to $75,000 of the Expense Allowance, including any
non-refundable amounts referred to in Section 3(d) hereof, (C) all amounts which
may become payable pursuant to Section 3(f) hereof and (D) in the event that the
Company is


<PAGE>



sold, merged or otherwise acquired, or the Company enters into a letter of
intent or completes a public or private offering of its securities within one
year from the Termination Date, an investment banking fee equal to the lesser of
(i) $300,000 or (ii) five percent (5%) of the total consideration received by
the Company and/or its shareholders in connection with such sale, merger,
acquisition or sale of securities. In the event of any such termination by the
Placement Agent as a result of any event described in clause (iii) or (iv)
above, or pursuant to Section 4(d) hereof, not occasioned by or arising out of
or in connection with any breach or failure hereunder by the Company, the
Placement Agent will be entitled to receive the sum of all Placement Agent's
Fees earned through the Termination Date, the non-refundable portion of the
Expense Allowance and the amounts set forth in clauses (C) and (D) of this
Section 9(a).

(b) This Offering may be terminated by the Company at any time prior to the
Expiration Date in the event that (i) the Placement Agent shall have failed to
perform any of its material obligations hereunder or (ii) there shall occur any
event described in Section 9(a)(iv) above not occasioned by or arising out of or
in connection with any breach or failure hereunder on the part of the Company.
In the event of any termination by the Company pursuant to clause (i) above, the
Placement Agent shall be entitled to retain the non-refundable portions of the
Expense Allowance, but shall be entitled to no other amounts whatsoever except
as may be due under any indemnity or contribution obligation provided herein or
any other Transaction Document, at law or otherwise. In the event of any
termination by the Company pursuant to clause (ii) above, the provisions of the
last sentence of Section 9(a) hereof shall apply.

(c) Upon any such termination, the Escrow Agent will, at the request of the
Placement Agent, cause all monies held by it in respect of subscriptions for
Units to be promptly returned to such subscribers without interest, penalty,
expense or deduction. Any interest earned thereon shall be applied (i) first to
the payment of amounts, if any, due to the Escrow Agent, (ii) second to the
payment of any amounts payable to the Placement Agent hereunder which remain
unpaid and (iii) third, in equal amounts to the Company and the Placement Agent.

10. SURVIVAL. (a) The obligations of the parties to pay any costs and expenses
hereunder and to provide indemnification and contribution as provided herein
shall survive any termination hereunder.

(b) The respective indemnities, agreements, representations, warranties and
other statements of the Company set forth in or made pursuant to this Agreement
will remain in full force and effect, regardless of any investigation made by or
on behalf of, and regardless of any access to information by, the Company or the
Placement Agent, or any of their officers or directors or any controlling person
thereof, and will survive the sale of the Units.

II. NOTICES. All communications hereunder will be in writing and, except as
otherwise expressly provided herein or after notice by one party to the other of
a change of address,


<PAGE>



if sent to the Placement Agent, will be mailed, delivered or telefaxed and
confirmed to Spencer Trask Securities Incorporated, 535 Madison Avenue, 18th
Floor, New York, New York 10022, Attention: William Dioguardi, Telefax number
(212) 751-3483, with a copy to Hertzog, Calamari & Gleason, I 00 Park Avenue,
New York, NY 100 1 7, Attn: Stephen A. Ollendorff, Esq., Telefax number (212)
213-1199 and if sent to the Company, will be mailed, delivered or telefaxed and
confirmed to GraphOn Corporation, 150 Harrison Avenue, Campbell, CA 95008, Attn:
Walter Keller, Telefax number (408) 370-5047, with a copy to Brobeck, Phleger &
Harrison LLP, Two Embarcadero Place, 2200 Geng Road, Palo Alto, California
94303-0913, Attn:'Thomas A. Bevilacqua, Esq., Telefax number (650) 496-2755.

12. APPLICABLE LAW, COSTS, ETC. THIS AGREEMENT WILL BE GOVERNED BY, CONSTRUED
AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
CONTRACTS MADE AND TO BE PERFORMED WHOLLY WITHIN SUCH STATE. IN THE EVENT THAT
EITHER PARTY INSTITUTES A LEGAL PROCEEDING PRIOR TO THE FIRST CLOSING, SUCH
PROCEEDING MUST BE INSTITUTED IN A COURT IN THE STATE OF CALIFORNIA, COUNTY OF
SANTA CLARA. IN THE EVENT EITHER PARTY INSTITUTES A LEGAL PROCEEDING AFTER THE
FIRST CLOSING, SUCH PROCEEDING MUST BE INSTITUTED IN EITHER THE STATE OF
CALIFORNIA, COUNTY OF SANTA CLARA, OR THE STATE OF NEW YORK, NEW YORK COUNTY, AT
THE CHOICE OF THE PARTY INSTITUTING THE PROCEEDING. SUBJECT TO THE FOREGOING,
(A) THE COMPANY HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF ANY NEW YORK
STATE OR UNITED STATES FEDERAL COURT SITTING IN NEW YORK COUNTY AND (B) THE
PLACEMENT AGENT HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF ANY CALIFORNIA
STATE OR UNITED STATES FEDERAL COURT SITTING IN THE COUNTY OF SANTA CLARA OVER
ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY
AGREEMENT CONTEMPLATED HEREBY, AND THE COMPANY AND THE PLACEMENT AGENT,
RESPECTIVELY, EACH HEREBY IRREVOCABLY AGREES THAT ALL CLAIMS IN RESPECT OF SUCH
ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH NEW YORK OR CALIFORNIA
STATE OR FEDERAL COURTS. SUBJECT TO THE SECOND AND THIRD SENTENCES OF THIS
PARAGRAPH, EACH OF THE COMPANY AND THE PLACEMENT AGENT FURTHER WAIVES ANY
OBJECTION TO VENUE IN SUCH STATE AND ANY OBJECTION TO AN ACTION OR PROCEEDING IN
SUCH STATE ON THE BASIS OF A NON-CONVENIENT FORUM. EACH OF THE COMPANY AND THE
PLACEMENT AGENT FURTHER AGREES THAT ANY ACTION OR PROCEEDING BROUGHT AGAINST THE
OTHER PARTY HERETO SHALL BE BROUGHT ONLY IN THE COURTS AS SPECIFIED IN THE
SECOND AND THIRD SENTENCES OF THIS PARAGRAPH. SERVICE OF PROCESS MAY BE MADE
UPON THE COMPANY OR THE PLACEMENT AGENT BY MAILING A COPY THEREOF TO IT, BY
CERTIFIED OR REGISTERED MAIL, AT ITS ADDRESS TO BE USED FOR THE GIVING OF
NOTICES UNDER THIS AGREEMENT. THE COMPANY AND THE PLACEMENT AGENT EACH HEREBY
WAIVES ITS RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
ARISING


<PAGE>



OUT OF THIS AGREEMENT OR ANY DOCUMENT OR AGREEMENT CONTEMPLATED HEREBY. THE
PLACEMENT AGENT OR THE COMPANY, AS THE CASE MAY BE, SHALL BE ENTITLED TO COSTS
AND REASONABLE ATTORNEY'S FEES IN THE EVENT IT PREVAILS IN ANY CLAIMS, ACTIONS,
AWARDS OR JUDGMENT UNDER THIS AGREEMENT.

13. CONFIDENTIALITY. The Company hereby agrees to hold confidential the
identities of the Purchasers in the Offering and prospective investors contacted
by the Placement Agent in connection with the Offering, and shall not disclose
their names and addresses without the prior written consent of the Placement
Agent, unless required by law. The Company hereby consents to the granting of an
injunction against it by any court of competent jurisdiction to enjoin it from
violating the foregoing confidentiality provisions. The Company hereby agrees
that the Placement Agent will not have an adequate remedy at law in the event
that the Company breaches the confidentiality provisions contained herein and
that the Placement Agent will suffer irreparable damage and injury as a result
of any such breach. Resort to such equitable relief shall not, however, be
construed to be a waiver of any other rights or remedies which the Placement
Agent may have.

14. PLACEMENT AGENT REPRESENTATION. The Placement Agent is in compliance in all
material respects with all applicable federal and state securities laws and
rules and regulations of the National Association of Securities Dealers, Inc.
with which it must comply to perform its obligations hereunder.

15. MISCELLANEOUS. No provision of this Agreement may be changed or terminated
except by a writing signed by the party or parties to be charged therewith.
Unless expressly so provided, no party to this Agreement will be liable for the
performance of any other party's obligations hereunder. Any party hereto may
waive compliance by the other with any of the terms, provisions and conditions
set forth herein; provided, however that any such waiver shall be in writing
specifically setting forth those provisions waived thereby. No such waiver shall
be deemed to constitute or imply waiver of any other term, provision or
condition of this Agreement. This Agreement contains the entire agreement
between the parties hereto and is intended to supersede any and all prior
agreements between the parties relating to the same subject matter. This
Agreement may be executed in counterparts, each of which shall be deemed an
original and all of which shall constitute a single agreement.




<PAGE>



         If the foregoing is in accordance with your understanding of our
agreement, kindly sign and return this Agreement, whereupon it will become a
binding agreement between the Company and the Placement Agent in accordance with
its terms.

                                                 Very truly yours,

                                                 GRAPHON CORPORATION



                                                 -------------------------------
                                                 By:      Walter Keller
                                                          Its: President



Accepted and agreed to this 
2nd day of September, 1998.


SPENCER TRASK SECURITIES INCORPORATED



- -------------------------------------
By:
Its:


<PAGE>


                            ASSET PURCHASE AGREEMENT

     This Agreement made effective as of the 18th day of December, 1998 by and
between Corel Corporation, a corporation incorporated under the laws of Canada,
together with its wholly-subsidiaries, Corel Corporation Limited, a corporation
incorporated under the laws of the Republic of Ireland, and Corel, Inc. a
corporation incorporated under the laws of the State of Delaware (together
referred to as "Vendor") and GraphOn Corporation, a corporation incorporated
under the laws of the State of California ("Purchaser").

                                    RECITALS

A. The Vendor is engaged in, among other things, the business of developing and
marketing the Purchased Software.

B. Purchaser desires to purchase from Vendor the Purchased Software and certain
assets used or usable in connection with the development and marketing of the
Purchased Software and to assume certain related contracts and obligations, and
Vendor desires to sell to Purchaser the Purchased Software and such assets and
to transfer to Purchaser the related contracts and obligations, all according to
the terms and subject to the conditions set forth in this Agreement (the
"Transaction").

C. In consideration of the transfer of the Purchased Software and the
above-mentioned related assets, Purchaser has agreed to issue and sell shares of
common stock of the Purchaser and a warrant to purchase common stock of
Purchaser pursuant to the terms and conditions of that certain Securities
Purchase Agreement by and between Vendor and Purchaser dated the date hereof
(the "Securities Purchase Agreement").


                                    AGREEMENT

     NOW, THEREFORE, for and in consideration of the mutual agreements set forth
in this Agreement and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, Purchaser and Vendor hereby agree
as follows:

1.   INTERPRETATION

1.1  DEFINITIONS. As used herein:

     "ADDITIONAL PURCHASED SHARES" means the 1,607,000 shares of common stock of
the Purchaser which may be issued to Vendor pursuant to the terms of the
Securities Purchase Agreement.

     "AFFILIATE" means, with respect to any Person, any other Person who
directly or indirectly controls, is controlled by, or is under direct or
indirect common control with, such Person, and includes any Person in like
relation to an Affiliate. A Person shall be deemed to control a Person if such
Person possesses, directly or indirectly, the power to direct or cause the
direction of the management and policies of such Person, whether through the
ownership of voting securities, by contract or otherwise; and the term
"controlled" shall have a similar meaning.

<PAGE>

     "AGREEMENT" means this Asset Purchase Agreement, including the Exhibits and
the Schedules to this Agreement, as it or they may be amended or supplemented
from time to time, and the expressions "HEREOF", "HEREIN", "HERETO",
"HEREUNDER", "HEREBY" and similar expressions refer to this Agreement and not to
any particular Section or other portion of this Agreement.

     "APPLICABLE LAW" means, with respect to any Person, property, transaction,
event or other matter, any Law relating or applicable to such Person, property,
transaction, event or other matter. Applicable Law also includes, where
appropriate, any interpretation of the Law (or any part) by any Person having
jurisdiction over it, or charged with its administration or interpretation.

     "ASSETS" has the meaning given in Section 2.1.

     "ASSUMED CONTRACTS" has the meaning given in subsection 2.1(c).

     "ASSUMED LIABILITIES" means the Liabilities of the Vendor listed in
SCHEDULE 2.3 to be assumed by the Purchaser that relate to the Assets arising
and accruing in respect of the period from and after the Closing Date.

     "BUG DATABASE" means Vendor's software bug databases respecting the
Purchased Software, in electronic format.

     "BUSINESS DAY" means any day except Saturday, Sunday or any day on which
banks are generally not open for business in the City of Ottawa, Ontario or in
the City of Campbell, California.

     "CLOSING" and "CLOSING DATE" shall have the meaning set out in Section 2.6

     "CONDITION" means the condition of the assets, liabilities, operations, or
financial position of the Purchaser.

     "CONFIDENTIAL INFORMATION" has the meaning given in Section 8.2.

     "CUSTOMER LISTS" means all customer lists, files, data and information
relating to customers and prospective customers for the Purchased Software as of
the Closing Date including, without limitation, any customer list which has been
delivered by the Vendor to the Purchaser prior to the date hereof.

     "DAMAGES" shall include any loss, damage, injury, liability, claim, demand,
settlement, judgment, award, fine, penalty, tax, fee (including reasonable legal
fees), charge, costs (including reasonable costs of investigation) or reasonable
expenses of any nature.

     "DIRECT CLAIM" has the meaning given in Section 9.3.

     "EFFECTIVE DATE" means the date first set out above.

<PAGE>

     "ENTITY" means any corporation (including any non-profit corporation),
general partnership, limited partnership, limited liability partnership, joint
venture, estate, trust, company (including any limited liability company or
joint stock company), firm or other enterprise, association, organization or
entity.

     "EXCLUDED SOFTWARE" means the computer programs listed in SCHEDULE
2.1(B)(II), including, to the extent in existence as of Closing, development
work in progress on such computer programs, and related designs, drawings, flow
charts, functional specifications, engineering and/or source code documentation,
and user manuals.

     "GOVERNMENTAL BODY" means any: (a) nation, state, commonwealth, province,
territory, county, municipality, district or other jurisdiction of any nature;
(b) federal, state, provincial, local, municipal, foreign or other government;
or (c) governmental or quasi-governmental authority of any nature (including any
governmental division, department, agency, commission, instrumentality,
official, organization, unit, body, or Entity and any court or other tribunal).

     "INDEMNIFICATION PERIOD" means the period commencing as of Closing and
ending at the close of business on the first anniversary of Closing.

     "INTELLECTUAL PROPERTY ASSETS" has the meaning given in subsection 2.1(b).

     "INTERIM PERIOD" means the period from and including the Effective Date to
and including the Closing Date.

     "LEASED PREMISES" means the premises leased by Vendor under the Leases.

     "LEASES" means the leases and the agreements to lease under which the
Vendor leases real property in the State of New Hampshire, as further described
in SCHEDULE 2.1(D).

     "LEGAL PROCEEDING" shall mean any action, suit, litigation, arbitration
proceeding (including any civil, criminal, administrative, investigative or
appellate proceeding), hearing, inquiry, audit, examination or investigation
commenced, brought, conducted or heard by or before, or otherwise involving any
court or other Governmental Body or any arbitrator or arbitration panel.

     "LICENSED SOFTWARE" shall mean the software, in both object and source code
format, as described in SCHEDULE 2.2.

     "LIEN" means any lien, mortgage, charge, hypothec, pledge, security
interest, prior assignment, option, warrant, lease, sublease, right to
possession, encumbrance, claim, right or restriction which affects, by way of a
conflicting ownership interest or otherwise, the right, title or interest in or
to any particular property, but excluding any contract or license rights
disclosed hereunder.

     "MARKETING MATERIALS" shall have the meaning set out in Section 2.1(f).


<PAGE>

     "MATERIAL ADVERSE EFFECT" means, with respect to any violation or other
matter, same will be deemed to have a "Material Adverse Effect" on the specified
Asset or covenant, as applicable, if such violation or other matter would have a
material adverse effect on Vendor's or Purchaser's, as applicable, intellectual
property rights, liabilities, operations, performance, assets or financial
condition.

     "PERSON" means any individual, Entity or Governmental Body.

     "PURCHASED SOFTWARE" means the proprietary computer programs listed in
SCHEDULE 2(1)(B)(I), in, unless otherwise provided, source code and object code
form, including, to the extent in existence as of the Closing Date, development
work in progress on such computer programs, and related designs, drawings, flow
charts, functional specifications, engineering and/or source code documentation,
and user manuals.

     "PURCHASER INDEMNITEES" means the following Persons:
      (a)  Purchaser;
      (b)  Purchaser's current and future Affiliates, but excluding Vendor;
      (c)  the respective Representatives of the Persons referred to in
           clauses (a) and (b) above; and 
      (d)  the respective successors and
           assigns of the Persons referred to in clauses (a) and (b) and
           (c) above.

     "PURCHASED SHARES" means 3,886,503 shares of common stock of the Purchaser
to be issued to the Vendor pursuant to the terms of the Securities Purchase
Agreement.

     "RELOCATION COSTS" means costs associated with the relocation of
Transferred Employees to New Hampshire up to a maximum amount of $5,000CDN per
Transferred Employee who is relocating from Canada, and up to a maximum of
$5,000USD per Transferred Employee who is relocating from within the United
States.

     "REPRESENTATIVES" means officers, directors, employees, agents, legal
counsel, accountants, advisors and representatives.

     "SECURITIES PURCHASE AGREEMENT" has the meaning set forth in the recitals
to this Agreement.

     "TANGIBLE ASSETS" shall mean those Assets set out in SCHEDULE 2.1(a).

     "TAXES" means all taxes, charges, fees, levies, imposts and other
assessments, including all income, sales, use, goods and services, value added,
capital, capital gains, alternative, net worth, transfer, profits, withholding,
payroll, employer health, excise, franchise, real property and personal property
taxes, and any other taxes, customs duties, fees, assessments or similar charges
in the nature of a tax including Canada Pension Plan and provincial pension plan
contributions, employment insurance payments and workers compensation premiums,
together with any instalments with respect thereto, and any interest, fines and
penalties, imposed by any governmental authority (including provincial,
municipal and 

<PAGE>

foreign governmental authorities), and whether disputed or not.

     "TAX RETURN" means any return, statement, report or form, including,
without limitation, estimated Tax Returns and reports, withholding Tax Returns
and reports and information reports and returns required to be filed with
respect to Taxes.

     "THIRD PARTY CLAIM" has the meaning given in Section 9.5.

     "THIRD PARTY MATERIALS" means the specific third party owned or controlled
software or content listed on SCHEDULE 2.1(b)(III).

     "TRADEMARKS" means all right, title and interest of Vendor in and to the
trademarks (whether registered or unregistered) and trademark applications
specified on SCHEDULE 2(1)(b)(IV) and the goodwill associated therewith.

     "TRADE SECRETS" means all non-public information, trade secret rights and
know-how in the possession of Vendor used in connection with the development and
manufacture of and/or for the distribution of the Products, including vendor
information, customer lists, pricing and sales information relating to the
Products.

     "TRANSACTION DOCUMENTS" means all documents or agreements required to be
delivered by any party hereunder, including the Agreement itself, the Securities
Purchase Agreement, and any related agreements.

     "TRANSFERRED EMPLOYEES" shall have the meaning set out in Section 8.3.

     "VENDOR INDEMNITEES" shall mean the following Persons:
     (a) Vendor;
     (b) Vendor's current and future Affiliates, but excluding Purchaser;
     (c) the respective Representatives of the Persons referred to in clauses
         (a) and (b) above; and
     (d) the respective successors and assigns of the Persons referred to in
         clauses (a) and (b) and (c) above.

     "WARRANT" means the warrant to be issued to Vendor pursuant to the terms of
the Securities Purchase Agreement, entitling the Vendor to purchase up to
388,650 shares of common stock of the Purchaser.

     "WARRANTY CLAIM" means a claim made by either the Purchaser or Vendor based
on or with respect to the inaccuracy or non-performance or non-fulfilment or
breach of any representation, covenant or warranty made by the other party
contained in this Agreement or contained in any document or certificate given in
order to carry out the transactions contemplated hereby.

     1.2 HEADINGS AND TABLE OF CONTENTS. The division of this Agreement into
Articles and Sections and the insertion of headings are for convenience of
reference only and shall not 

<PAGE>


affect the construction or interpretation of this Agreement.

     1.3 NUMBER AND GENDER. Unless the context requires otherwise, words
importing the singular include the plural and vice versa and words importing
gender include all genders.

     1.4 BUSINESS DAYS. If any payment is required to be made or other action is
required to be taken pursuant to this Agreement on a day which is not a Business
Day, then such payment or action shall be made or taken on the next Business
Day.

     1.5 CURRENCY AND PAYMENT OBLIGATIONS. Except as otherwise expressly
provided in this Agreement, all dollar amounts referred to in this Agreement are
stated in the lawful currency of the United States of America. 

     1.6 STATUTE REFERENCES. Any reference in this Agreement to any statute 
or any section thereof shall, unless otherwise expressly stated, be deemed to 
be a reference to such statute or section as amended, restated or re-enacted 
from time to time.

     1.7 SECTION AND SCHEDULE REFERENCES. Unless the context requires otherwise,
references in this Agreement to Sections, Exhibits or Schedules are to Sections,
Exhibits or Schedules of this Agreement. The Exhibits and Schedules to this
Agreement are an integral part of this Agreement.


ARTICLE 2. THE TRANSACTION

     2.1 ASSETS. Subject to the terms and conditions of this Agreement, Vendor
agrees to grant, convey, sell, assign and transfer to Purchaser on Closing, and
Purchaser agrees on Closing to purchase, accept and assume, the assets set forth
below (collectively, the "Assets"). The Assets consist of the following:

          (a) the Tangible Assets;

          (b) all right, title and interest, including the worldwide
intellectual and industrial property rights owned by Vendor in the Purchased
Software and Trademarks, including without limitation, copyrights (whether
registered or unregistered), copyright applications, trademark rights, trademark
applications, Trade Secrets, inventions and the right to seek patents with
respect thereto, designs, technologies, including without limitation, all
registrations, rights to register or apply for registration, renewals, reissues,
divisions, continuations, continuations-in-part, modifications, extensions,
reversions, all waivers and assignments of moral rights, and all rights to
enforce such rights or interests in any work and all other proprietary rights or
other intellectual property or intangible assets and any rights to use or
exploit the foregoing (together "Intellectual Property Assets"). The
Intellectual Property Assets shall not include any right, title and interest in
the Excluded Software, Licensed Software and the Third Party Materials;

          (c) the specific contracts (collectively, the "Assumed Contracts") set
forth on SCHEDULE 2.1(c);

<PAGE>

          (d) all right, title and interest of the Vendor in and to the Leased
Premises and under the Leases including, without limitation, any prepaid rent
and security deposits thereunder and all leasehold improvements owned by the
Vendor and forming part of the Leased Premises;

          (e) an undivided, joint ownership interest in the Customer Lists;

          (f) all stock on hand of sales and promotional materials, catalogues
and advertising literature , including, without limitation, web-based marketing
materials, relating exclusively to the Purchased Software ("Marketing
Materials"); and

<PAGE>

          (g) all licenses or sub-licenses to computer software, other than
Third Party Materials, including all end-user licenses and associated rights
related to the "off-the-shelf" commercial software products listed in SCHEDULE
2.1(g) and used by Vendor at the Leased Premises; and

          (h) all right, title and interest of the Vendor in the Bug Database.

     2.2 GRANT OF LICENSE Subject to the terms and conditions hereof, Vendor
hereby grants to Purchaser an irrevocable, nonexclusive, perpetual, royalty-free
and worldwide license to the Licensed Software to:

          (a) Use internally and reproduce for internal use, modify, and prepare
derivative works based upon the Licensed Software in source code form, directly
as well as with the assistance of third-party contractors;

          (b) Derive object code versions of the Licensed Software from the
source code versions for distribution and other uses pursuant to the licenses
granted to Purchaser under this Agreement;

          (c) Produce, reproduce, distribute, transmit and sublicense the right
to use object code versions of the Licensed Software, in any manner, format or
media whatsoever, and any related documentation, and permitted derivative works
based thereon, directly and indirectly through subcontractors, distributors,
subdistributors, resellers and OEMs or other distribution channels, and in any
media or by any means or methods now or hereafter known; provided that Purchaser
is licensed to distribute, transmit and sublicense the right to use copies
thereof only when each such copy is licensed to end user customers as part of
Purchaser products and not on a stand-alone basis;

          (d) Grant sublicenses to third parties (including but not limited to
OEM, VAR and distributor customers of Purchaser) that permit such third parties
to make use of all or any part of the rights Purchaser is granted under this
Agreement respecting the object code of the Licensed Software, including the
right to further sublicense any such rights;

          (e) Purchaser will ensure that each copy of the Licensed Software and
software incorporating or based upon the Licensed Software that is distributed
by Purchaser will be accompanied by an applicable copy of Purchaser's standard
End User software license which shall contain provisions regarding the
limitation of Vendor's liabilities and protection of Vendor's intellectual
property rights that are substantially and materially similar to those
customarily used by Purchaser to limit its liabilities and to protect its
intellectual property rights;

          (f) Purchaser agrees that each copy of a Purchaser product which
incorporates the Licensed Software shall contain an appropriate Purchaser
copyright notice, and that Purchaser shall place such reasonable Vendor
proprietary notices in respect of the Licensed Software in the user manual (in
electronic and/or hardcopy form) for such Purchaser products in the place where
Purchaser gives credit to other third party developers and in the manner and
form as Purchaser generally provides credit, identifies trade notices and lists
copyright notices;

<PAGE>

          (g) The license rights granted in this Section 2.2 include the right
for Purchaser to exploit the Licensed Software in technology and under
intellectual property rights not now known, subject to the limitations set out
above. Except for the rights granted to Purchaser under this Agreement, Vendor
shall retain all right, title and interest, including intellectual property
rights in the Licensed Software. Subject to the restrictions set out in Section
2.2(a), Purchaser shall have all right, title and interest, including
intellectual property rights in and to all modifications and derivative works
created by Purchaser;

          (h) Purchaser shall comply with all laws, rules, regulations and
industry standards existing with respect to the Licensed Software and the
performance by Purchaser of its obligations hereunder existing in the
jurisdictions where Purchaser carries on activities under this Agreement and
where the Licensed Software is licensed or distributed from time to time.
Purchaser shall impose the same obligation on its distribution channels,
including without limitation any sub-distributor, reseller or OEM who purchase
any product in which any portion of the Licensed Software is incorporated from
Purchaser.

     2.3 LIABILITIES. Purchaser agrees to assume, at the Closing, and from and
after the Closing to pay, perform, discharge and satisfy the Assumed Liabilities
and will indemnify the Vendor against such liabilities.

     2.4 PAYMENT. The purchase price for the Assets shall be $3,886,503USD,
which shall be satisfied in full by the issuance of the Issued Shares.

     2.5 TAX MATTERS. Vendor and Purchaser agree that the Purchase Price for the
Assets shall be based on the fair market value of the Assets as reasonably
determined by Vendor and Purchaser, with reference to the net book value of the
Assets as recorded in Vendor's accounting records, and as may be required by
applicable provisions of the U.S. Internal Revenue Code of 1986, the Canada
Income Tax Act, and the Finance Act (Ireland) each as amended. Vendor and
Purchaser each agree not to take any tax position that is inconsistent with the
allocation agreed upon by the parties.

     2.6 CLOSING. Unless this Agreement shall have been terminated pursuant to
section 5.1 and subject to the satisfaction or waiver of the conditions set
forth in Section 2.7, the closing (the "Closing") of the Transaction shall take
place at the Palo Alto offices of Brobeck, Phleger & Harrison LLP at 10:00a.m.,
California Time, on December 31, 1998 or such sooner date that is the earliest
practicable date after all of the conditions to closing set forth in this
Agreement have been satisfied or waived in writing, or at such other time or
date, and at such other place, of such other means of exchanging documents, as
may be agreed to by the parties hereto. The actual date of the Closing is
sometimes referred to as the "Closing Date".

     2.7 CONDITIONS OF CLOSING.

          (a) CONDITIONS OF PURCHASER OBLIGATIONS. The obligations of Purchaser
hereunder shall be subject to the satisfaction and fulfillment of each of the
following conditions, except that Purchaser may expressly waive any or all of
the conditions in writing:

<PAGE>

          (i) NO MATERIAL ADVERSE CHANGES. During the Interim Period, there
shall not have occurred any impairment to the Assets resulting from any breach
of any representation or warranty of Vendor between the Effective Date and the
Closing Date of such severity that it is likely to impair the Assets and result
in a Material Adverse Effect to the value of the Assets ("Vendor Impairment").
Impairments to the value of the Assets resulting from (A) general changes in
economic conditions outside the control of the parties, (B) conduct of Purchaser
or any other Person not controlled by Vendor, or (C) announcement of the
transactions contemplated by this Agreement or statements or announcements made
by Vendor or Purchaser pursuant to this Agreement, shall not be deemed to
constitute a Vendor Impairment.

          (ii) COMPLIANCE. As of the Closing Date, Vendor shall have complied in
all material respects with, and shall have fully performed, in all material
respects, all conditions, covenants and obligations of this Agreement imposed on
Vendor and required to be performed or complied with by Vendor at, or prior to,
the Closing Date.

          (iii) CLOSING DELIVERIES. Vendor shall have delivered, and Purchaser
shall have received, the deliveries described in Section 2.8 hereof.

          (iv) NO LITIGATION. There shall not be an injunction, judgment, order,
decree, ruling or charge in effect preventing or delaying consummation of any of
the transactions contemplated by this Agreement or the other Transaction
Documents.

          (v) CONSENTS. Vendor shall have obtained all necessary consents to the
assignment of the Assumed Contracts and Leases.

          (vi) OPINION OF VENDOR'S COUNSEL. The Purchaser shall have received 
the opinion of Vendor's counsel as to the due authorization, execution and 
delivery,and enforceability of this Agreement in such form as the Purchaser may
reasonably require.

          (b) CONDITIONS TO VENDOR'S OBLIGATIONS. The obligations of Vendor
hereunder shall be subject to the satisfaction and fulfillment of each of the
following conditions, except that Vendor may expressly waive any or all of the
conditions in writing:

          (i) NO MATERIAL ADVERSE CHANGES. During the Interim Period there will
have been no change in the Condition of Purchaser, howsoever arising, except
changes which individually or in the aggregate, have not had a Material Adverse
Effect on the Condition of the Purchaser. Without limiting the generality of the
foregoing, during the Interim Period:

          A.   no damage to or destruction of any material part of the property
               or assets of the Purchaser shall have occurred;
          B.   Walt Keller shall not have resigned or have indicated his
               intention to resign from employment with Purchaser, and
          C.   International Business Machines or Sun Microsystems, shall not
               have ceased, or advised Purchaser or Vendor in writing of their
               intention to 

<PAGE>

               end their relationship with Purchaser or to
               otherwise cease licensing software product from Purchaser.

          (ii)COMPLIANCE. As of the Closing Date, Purchaser shall have complied
in all material respects with, and shall have fully performed, in all material
respects, all conditions, covenants and obligations of this Agreement imposed on
Purchaser and required to be performed or complied with by Purchaser at, or
prior to, the Closing Date.

          (iii) CLOSING DELIVERIES Purchaser shall have delivered, and Vendor
shall have received, the deliveries described in Section 2.8 hereof.

          (iv) NO LITIGATION. There shall not be an injunction, judgment, order,
decree, ruling, or charge in effect preventing or delaying consummation of any
of the transactions contemplated by this Agreement or the other Transaction
Documents.

          (v) OPINION OF PURCHASER'S COUNSEL. The Vendor shall have received the
opinion of Purchaser's counsel as to the due authorization, execution and
delivery, and enforceability of this Agreement and as to the valid authorization
of the Purchased Shares, the Additional Purchased Shares and the Warrant, and
the issue of the Purchased Shares and the Warrant, in such form as the Vendor
may reasonably require.


     2.8 CLOSING DELIVERIES. At the Closing, the parties shall deliver and
receive the following:

          (a) Vendor shall execute and deliver to Purchaser such bills of sale,
certificates of title, endorsements, assignments and other good and sufficient
instruments of sale, conveyance and transfer and assignment, in form and
substance satisfactory to Purchaser, sufficient to sell, convey, transfer, and
assign to Purchaser all right, title and interest of Vendor in the Assets;

          (b) Vendor and Purchaser shall execute and deliver to each other the
Securities Purchase Agreement;

          (c) Vendor shall deliver to Purchaser the items described in Section
2.9;

          (d) Vendor shall deliver to Purchaser a certificate certifying that
the representations and warranties contained in Article 3 are true and correct
in all material respects (except for such representations and warranties which
are themselves limited by a reference to materiality, which shall be true and
correct in all respects) as of the Closing Date;

          (e) Purchaser shall deliver to Vendor a certificate certifying that
the representations and warranties contained in Article 4 are true and correct
in all material respects (except for such representations and warranties which
are themselves limited by a reference to materiality, which shall be true and
correct in all respects) as of the Closing Date; and

<PAGE>

          (f) Purchaser shall deliver to Vendor a share certificate or
certificates evidencing the Purchased Shares; and

          (g) Purchaser shall deliver to Vendor a certificate evidencing the
Warrant.

<PAGE>

     2.9 DELIVERY OF ASSETS.

          (a) Upon Closing, Vendor will deliver to Purchaser all designs,
diagrams, charts, computer software, programming notes and other documentation
owned by Vendor relating to the Purchased Software and Trademarks (including,
without limitation the Intellectual Property Assets); and

          (b) Upon Closing, Vendor will deliver to Purchaser all the equipment,
furniture, furnishings and accessories and supplies set out in SCHEDULE 2.1(A).

          (c) Upon Closing, Vendor will deliver to Purchaser the Marketing
Materials, the Bug Database, and the Customer Lists, in electronic format.

     2.10 ASSIGNMENT OF ASSUMED CONTRACTS AND OTHER LICENSES

          (a) Upon the Effective Date, Vendor shall assign to Purchaser Vendor's
rights under the Assumed Contracts and Leases or shall make such other
arrangements as are mutually agreed to by the parties.

          (b) Nothing in this Agreement shall be construed as an assignment,
license, transfer or conveyance of, or an attempt to assign, license, transfer
or convey, any license or sub-license referred to in Paragraph 2.1(g) if such
license or sub-license is not assignable, licenseable, transferable or
conveyable without the consent of a third party (if such consent has not been
obtained) and such assignment, license, transfer or conveyance or attempted
assignment, license, transfer or conveyance would constitute a breach of such
license or sub-license. Vendor shall use commercially reasonable efforts to
obtain such consents and shall take all reasonable actions to preserve the
benefits of such licenses and sub-licenses for the Purchaser.

ARTICLE 3. REPRESENTATIONS AND WARRANTIES OF VENDOR.

     Vendor represents and warrants to Purchaser as set forth below.

     3.1 ORGANIZATION. Corel Corporation, Corel Corporation Limited and Corel,
Inc. are corporations duly organized, validly existing and in good standing
under the laws of Canada, the Republic of Ireland and the State of Delaware,
respectively, and have the corporate power and authority to carry on their
business as it is now being conducted.

     3.2 POWER, AUTHORITY AND VALIDITY. Vendor has the full corporate power and
authority to enter into, execute and deliver this Agreement and the other
Transaction Documents to which it is a party and to perform its obligations
hereunder and thereunder, including, without limitation, the execution and
delivery, general conveyances, bills of sale, assignments, and other documents
and instruments evidencing the conveyance of the Assets. All corporate
proceedings that are necessary and appropriate for Vendor to authorize, execute
and deliver this Agreement and the other Transaction Documents and the
performance of its obligations thereunder and hereunder have been taken. No
other 

<PAGE>

corporate proceedings on the part of Vendor are necessary to authorize
this Agreement and the Transaction Documents or to consummate the transactions
so contemplated hereby and thereby. This Agreement and the Transaction Documents
to which it is a party constitute valid and binding obligations of Vendor,
enforceable in accordance with their terms except as limited by applicable
bankruptcy, insolvency, moratorium, reorganization, or other laws affecting
creditors' rights and remedies generally, and except as the indemnification
provisions contained in this Agreement may be limited by principles of public
policy. Vendor is not subject to or obligated under any charter, bylaw or,
subject to the obtaining of any required consents set out in Schedule 3.8, any
material license, contract, franchise or permit, or subject to any order or
decree, which would be breached or violated in a material manner by or in
material conflict with the execution and carrying out of this Agreement and the
Transaction.

     3.3 TAX MATTERS. The Vendor has timely filed all material Tax Returns
relating to or affecting the Assets required to be filed and such Tax Returns
are complete and correct in all material respects. Vendor has timely paid all
Taxes relating to or affecting the Assets. There is no claim for Taxes that
operates as a lien against the Assets other than for Taxes not yet due and
payable. There are no pending assessments, asserted deficiencies or claims for
additional Taxes that affect or pertain to the Assets that have not been paid.
There have been no audits or examinations of any tax returns or reports by any
applicable Governmental Body that pertain to or could affect the Assets. There
is no extension of the statute of limitations on the assessment of any Taxes
relating to or affecting the Assets granted by the Vendor and currently in
effect. No state of facts exists or has existed which would constitute grounds
for the assessment of any penalty or of any further Tax liability with respect
to the Assets.

     3.4 TITLE. Vendor has good, valid and marketable title to the Tangible
Assets free and clear of all Liens and are fully paid. All Tangible Assets are
suitable and adequate for use in the ordinary course of business and conform in
all material respects to all applicable laws. All leases are binding, valid and
enforceable in accordance with their terms subject to the effect, if any, of (i)
applicable bankruptcy and other similar laws affecting the rights of creditors
generally, and (ii) rules of law governing specific performance, injunctive
relief and other equitable remedies, and there are no current defaults or events
which have occurred with which the giving of notice or lapse of time or both
would constitute a material default under any lease.

     After the time of Closing, Purchaser will be entitled to the continued use
and possession of the Leased Premises, for the terms specified in the Leases and
for the purposes for which such property is used. Vendor has no knowledge of any
pending or threatened condemnation or similar proceeding affecting Leased
Premies.

     3.5 PROPRIETARY RIGHTS.

          (a) SCHEDULE 3.5 sets forth, with respect to each Intellectual
Property Asset registered with any Governmental Body or for which an application
has been filed with any Governmental Body (e.g. patents, patent applications,
registered copyright and registered trademarks), the names of the jurisdictions
covered by the applicable registration or application.

          (b) No claim with respect to the Purchased Software by or against any
current or former directors, officers, consultants or employees of Vendor or any
third party has been made or now exists and Vendor knows of no basis for any
such claims. Vendor is not aware of any breach of any 

<PAGE>

confidentiality agreement in favor of Vendor relating to the Purchased Software
either by its current or former directors, officers, consultants, employees or
third parties.

          (c) Vendor has not disposed of in any manner (other than through a
license in the ordinary course of business) any rights to the Intellectual
Property Assets.

          (d) Except pursuant to this Agreement, no Person or Entity has any
written or oral agreement, option, understanding or commitment, or any right or
privilege capable of becoming an agreement, for the purchase or transfer from
Vendor of any of the Assets.

     3.6 LITIGATION. Except as set out in SCHEDULE 3.6, as of the Effective
Date, there is no suit, claim, investigation, action or proceeding, either
administrative or judicial (i) pending or, to the best of Vendor's knowledge,
threatened against Vendor or any officer or director of Vendor, involving the
Assets, at law or in equity, before any federal, state, local, or foreign court,
or regulatory agency, or other governmental authority, including, without
limitation, any unfair labor practice or grievance proceedings or otherwise, or
(ii) which questions or challenges the validity of this Agreement or the
Transaction Documents. Except as set out in SCHEDULE 3.6, Vendor has not
received any complaints from any of its customers or suppliers within the last
six months, which complaints could reasonably be expected individually or in the
aggregate, to have a potential adverse effect on the Assets. There is no
judgment, decree, injunction, rule or order of any Governmental Body outstanding
against Vendor which relates to the ownership, development or distribution of
the Assets.

     3.7 COMPLIANCE WITH LAWS. Each of Corel Corporation, Corel Corporation
Limited and Corel, Inc. has complied and is in compliance with all applicable
foreign, federal, state, and local laws, statutes, licensing requirements,
rules, and regulations, and judicial or administrative decisions where the
failure to so comply could have a Material Adverse Effect on the Assets.

     3.8 CONSENTS. Except as set out in SCHEDULE 3.8, the execution and delivery
of this Agreement by the Vendor does not, and the performance of this Agreement
and the Transaction Documents by the Vendor, including the transfer of the
Assets, shall not require any consent, approval, authorization or permit of, or
filing with or notification to, any Governmental Body, or any other third party,
including licensors and lenders.

     3.9 CONTRACTS AND COMMITMENTS. Except as set out in SCHEDULE 3.9, Vendor
has performed all of its obligations under the terms of each contract to which
it is a party, and is not in default thereunder, where such non-performance or
default could have a Material Adverse Effect on the Assets. No event or omission
has occurred which but for the giving of notice or lapse of time or both would
constitute a default by any party thereto under any such contract, where such
default by any party could have a Material Adverse Effect on the Assets. Each
such contract is valid and binding on all parties thereto and in full force and
effect. Vendor has received no notice of default, cancellation, or termination
in connection with any such contract.

     3.10 TANGIBLE ASSETS. The Tangible Assets are suitable for the purpose or
purposes for which they are being used, are in good operating condition and in
reasonable repair, and free from any known defects, except such minor defects as
do not interfere with the continued use thereof. Each tangible Asset has been
serviced and maintained in accordance with customary industry practices. 

<PAGE>

     3.11 BUG DATABASE. The Bug Database delivered to Purchaser hereunder shall
contain a listing of all critical bugs in the Purchased Software known to Vendor
as of Closing.

     3.12 NO CONFLICT OR DEFAULT. Subject to obtaining the consents set out in
Schedule 3.8, neither the execution and delivery of this Agreement or any other
Transaction Document, nor compliance with the terms and provisions hereof and
thereof, including without limitation, the consummation of the transactions
contemplated hereby and thereby, will violate any statute, regulation, or
ordinance of any Governmental Body, or conflict with or result in the breach of
any term, condition, or provision of its Articles of Incorporation or Bylaws, as
presently in effect, or of any agreement, deed, contract, mortgage, indenture,
writ, order, decree, legal obligation, or instrument to which Vendor is a party
or by which it or any of the Assets are or may be bound, or constitute a default
(or an event which, with the lapse of time or the giving of notice, or both,
would constitute a default) thereunder.

     3.13 LABOR RELATIONS.

          (a) There are no labor controversies pending or threatened between
Vendor and any of its employees listed on Schedule 8.3 (a)(i) or (ii), or any
labor union or other collective bargaining unit representing any such employees.

          (b) Vendor has never entered into a collective bargaining agreement or
other labor union contract relating to the employees listed on Schedule 8.3
(a)(i) or (ii).

          (c) There are no written employment or separation agreements, or oral
employment or separation agreements which create a fixed term of employment or
which contain severance benefits between Vendor and any of the employees listed
on Schedule 8.3 (a)(i) or (ii).

     3.14 COMPLETE DISCLOSURE. The copies of all instruments, agreements, other
documents and written information delivered by Vendor to the Purchaser or its
counsel are and will be complete and correct in all material respects as of the
date of delivery thereof.

     3.15 CONSENTS. Vendor shall promptly apply for or otherwise seek, and use
its best efforts to obtain, all consents and approvals required for the
consummation of the transactions set forth hereby, other than any consents
required to assign to Purchaser the commercial software licenses set out in
Section 2.1(g), which Vendor shall use its diligent efforts to obtain.

     3.16 BEST EFFORTS. Vendor shall use its best efforts to effectuate the
transactions contemplated hereby and to fulfill and cause to be fulfilled the
conditions to Closing under this Agreement.

     3.17 DISCLAIMER OF OTHER WARRANTIES. THE WARRANTIES IN THIS SECTION 3 AS
THEY RELATE TO THE ASSETS ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS,
EXPRESS OR IMPLIED, IN FACT OR IN LAW, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABLE QUALITY, MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, NON-INFRINGEMENT AND THOSE ARISING BY STATUTE OR OTHERWISE
IN LAW OR FROM A COURSE OF DEALING OR USAGE OF TRADE.

<PAGE>

ARTICLE 4. REPRESENTATIONS AND WARRANTIES OF PURCHASER.

     Purchaser represents and warrants to Vendor that:

     4.1 ORGANIZATION AND GOOD STANDING. Purchaser is a corporation duly
organized, validly existing and in good standing under the laws of the State of
California, and has full power and authority to carry on its business as now
conducted.

     4.2 POWER, AUTHORIZATION AND VALIDITY. Purchaser has the right, power,
legal capacity and authority to enter into and perform its obligations under
this Agreement and the other Transaction Documents to which it is a party. To
the extent required, the execution and delivery of this Agreement and the other
Transaction Documents have been duly and validly approved and authorized by the
Board of Directors of Purchaser. No authorization or approval, governmental or
otherwise, is necessary in order to enable Purchaser to enter into and to
perform the terms of this Agreement or other Transaction Documents on its part
to be performed.

     4.3 NO VIOLATION OF EXISTING AGREEMENTS. Neither the execution and delivery
of this Agreement nor the consummation of the Transaction will conflict with, or
result in a material breach or violation of, any provision of Purchaser's
articles of incorporation or bylaws, as currently in effect, any material
instrument or material contract to which Purchaser is a party or by which it is
bound, or any federal, provincial, state or local judgment, writ, decree, order,
statute, rule or regulation applicable to it, if such conflict or material
breach or violation of such judgement, writ, decree, order, statute, rule or
regulation would have a Material Adverse Effect on the Condition of the
Purchaser.

     4.4 LITIGATION. There is no suit, action, proceeding, claim or
investigation pending or, to the best of Purchaser's knowledge, threatened
against Purchaser before any court or administrative agency or which questions
or challenges the validity of this Agreement.

ARTICLE 5. TERMINATION; SURVIVAL AND LIMITATIONS OF REPRESENTATIONS AND
WARRANTIES

     5.1 TERMINATION. This Agreement may be terminated prior to the Closing as
follows:

          (a) at any time on or prior to the Closing Date, by mutual written
consent of the Company and the Purchaser;

          (b) at the election of the Company or the Purchaser by written notice
to the other parties hereto after 5:00 p.m., California time, on December 31,
1998, if the Closing shall not have occurred, unless such date is extended by
the mutual written consent of the Company and the Purchaser;

          (c) at the election of the Company, if there has been a material
breach of any representation, warranty, covenant or agreement on the part of the
Purchaser contained in this Agreement, which breach has not been cured within 15
Business Days of notice to the Purchaser of such breach; or

<PAGE>

          (d) at the election of the Purchaser, if there has been a material
breach of any representation, warranty, covenant or agreement on the part of the
Company contained in this Agreement, which breach has not been cured within 15
Business Days notice to the Company of such breach.

If this Agreement so terminates, it shall become null and void and have no
further force or effect, except as provided in Section 5.2.

     5.2 SURVIVAL. If this Agreement is terminated and the transactions
contemplated hereby are not consummated as described above, this Agreement shall
become void and of not further force and effect; except for the provisions of
Article 1 and this Section 5.2; PROVIDED that (a) none of the parties hereto
shall have any liability in respect of a termination of this Agreement pursuant
to Section 5.1(a)or 5.1(b) and (b) nothing shall relieve any of the parties from
liability for actual damages resulting from a termination of this Agreement
pursuant to Section 5.1(c) or 5.1(d); and PROVIDED, FURTHER, that none of the
parties hererto shall have any liability for speculative, indirect,
unforeseeable or consequential damages resulting from any legal action relating
to this Agreement or any termination of this Agreement.

     5.3 SURVIVAL OF REPRESENTATIONS AND WARRANTIES.

          (a) Subject to Sections 5.1 and 5.2, the representations and
warranties made by Vendor shall survive Closing and shall remain in full force
and effect and shall survive until the end of the Indemnification Period and
shall survive thereafter only with respect to any claims made prior to the end
of the Indemnification Period. The representations and warranties made by
Purchaser herein shall survive the Closing and shall remain in full force and
effect and shall survive until the end of the Indemnification Period and shall
survive thereafter only with respect to any claims made prior to the end of the
Indemnification Period.

          (b) The representations, warranties, covenants and obligations of
Vendor and Purchaser, and the rights and remedies that may be exercised by the
Purchaser Indemnitees or the Vendor Indemnitees, shall not be limited or
otherwise affected by or as a result of any information furnished to, or any
investigation made by or knowledge of, any of the Purchaser Indemnitees, the
Vendor Indemnitees, or any of their Representatives.

ARTICLE 6. LIMITATION ON WARRANTY CLAIMS

     6.1 LIMITATION ON WARRANTY CLAIM(S) BY VENDOR.

          (a) The Vendor shall not be entitled to make a Warranty Claim if the
Vendor has been advised in writing or otherwise has actual knowledge prior to
Closing of the inaccuracy, non-performance, non-fulfilment or breach which is
the basis for such Warranty Claim and the Vendor completes the transactions
hereunder notwithstanding such inaccuracy, non-performance, non-fulfilment or
breach.

          (b) The amount of any damages which may be claimed by the Vendor
pursuant to a Warranty Claim shall be calculated to be the cost or loss to the
Vendor after giving effect to: 

<PAGE>

               (i)  any insurance proceeds available to the Vendor in relation
                    to the matter which is the subject of the Warranty Claim,
                    and

               (ii) the value of any related, determinable tax benefits
                    realized, or to be realized within a two (2) year period
                    following the date of incurring such cost or loss, by the
                    Vendor in relation to the matter which is the subject of the
                    Warranty Claim.

          (c) Vendor shall not be entitled to make any Warranty Claim until such
time as the total amount of all Damages (including the Damages directly arising
from such inaccuracy or breach and all other Damages arising from any other
inaccuracies in or breaches of any representations, warranties, covenants or
obligations) that have been directly suffered or incurred by the Vendor exceeds
Twenty-Five Thousand Dollars ($25,000). Notwithstanding the foregoing, in the
event the total amount of all such Damages exceed Twenty-Five Thousand Dollars,
Purchaser's liability shall include the initial Twenty-Five Thousand Dollars
($25,000) amount. Except in the event of a breach by Purchaser of the
confidentially provisions set out in Section 8.2 (to which the limitation in
this section 6.1 shall not apply), the maximum aggregate liability of the
Purchaser in respect of all Warranty Claims by the Vendor will be limited to
$760,000.

     6.2 LIMITATION ON WARRANTY CLAIM(S) BY PURCHASER

          (a) The Purchaser shall not be entitled to make a Warranty Claim if
the Purchaser has been advised in writing or otherwise has actual knowledge
prior to Closing of the inaccuracy, non-performance, non-fulfilment or breach
which is the basis for such Warranty Claim and the Purchaser completes the
transactions hereunder notwithstanding such inaccuracy, non-performance,
non-fulfilment or breach.

          (b) The amount of any damages which may be claimed by the Purchaser
pursuant to a Warranty Claim shall be calculated to be the cost or loss to the
Purchaser after giving effect to: 

               (i)  any insurance proceeds available to the Purchaser in
                    relation to the matter which is the subject of the Warranty
                    Claim, and

               (ii) the value of any related, determinable tax benefits
                    realized, or to be realized within a two (2) year period
                    following the date of incurring such cost or loss, by the
                    Purchaser in relation to the matter which is the subject of
                    the Warranty Claim.

          (c) Purchaser shall not be entitled to make any Warranty Claim until
such time as the total amount of all Damages (including the Damages directly
arising from such inaccuracy or breach and all other Damages arising from any
other inaccuracies in or breaches of any representations, warranties, covenants
or obligations) that have been directly suffered or incurred by the Purchaser
exceeds Twenty-Five Thousand Dollars ($25,000). Notwithstanding the foregoing,
in the event the total amount of all such Damages exceed Twenty-Five Thousand
Dollars, Vendor's liability shall include the initial Twenty-Five Thousand
Dollars ($25,000) amount. Except in the event of a breach by Vendor of the
confidentially provisions set out in Section 8.2 (to which the limitation in
this section 6.2 shall not apply), the maximum aggregate liability of the Vendor
in respect of all Warranty Claims by the Purchaser will be limited to 

<PAGE>

$760,000.

<PAGE>

ARTICLE 7. POST-CLOSING COVENANTS REGARDING TRANSITION SUPPORT.

     7.1 TRANSITION SERVICES. Vendor agrees to provide certain quality assurance
testing ("QA Testing"), sales and marketing ("Sales Assistance") assistance, and
employee relocation assistance to Purchaser as described herein in order to
facilitate the orderly transition of the development and marketing of the
Purchased Software from Vendor to Purchaser. Vendor and Purchaser shall each
appoint one designated representative who shall act as the point of contact with
respect to Transition Services.

          (a) QA TESTING. For a period of ninety (90) days from Closing, Vendor
shall continue to provide QA Testing for the Purchased Software at Vendor's
headquarters in Ottawa in accordance with its existing practices and policies.
Vendor shall have the discretion to use any employee or contractor to perform
the QA Testing; provided that the level of testing is at least equivalent to the
current level of QA Testing for the Purchased Software. Vendor shall provide the
QA Testing services to Purchaser at no cost.

          (b) CUSTOMER TRANSITION AND SALES ASSISTANCE. For a period of thirty
(30) days from Closing, Vendor shall make Eric Lefebvre available to debrief
Purchaser regarding the status of the relationship and/or negotiations with
existing and prospective customers for the Purchased Software, and to contact
and accompany Purchaser personnel in visiting such existing and prospective
customers. Purchaser will cover all costs of travel and other out-of-pocket cost
incurred in connection with the assistance provided by Eric Lefebvre, but
Purchaser will not be charged for his services.

          (c) EMPLOYEE RELOCATION COSTS. Vendor shall pay Relocation Costs for
up to three (3) employees from Canada, and up to three (3) employees from the
United States, listed on Schedule 8.3(a)(ii), or otherwise approved by Vendor;
provided any such employees from Vendor's Orem, Utah site who are currently
being paid a completion bonus may not commence employment with Purchaser prior
to February 1st, 1999.

     7.2 FURTHER ASSURANCES. Vendor agrees to provide to Purchaser such
assistance as Purchaser shall reasonably request in order to fulfill the intent
of this Agreement. To the extent that Vendor fails to provide such assistance,
Vendor hereby grants to Purchaser a permanent, irrevocable power of attorney to
perform on Vendor's behalf all actions necessary or useful to meet the
objectives of this Agreement.


ARTICLE 8. OTHER POST-CLOSING COVENANTS.

     8.1 PUBLIC ANNOUNCEMENT. Vendor and Purchaser agree to make no public
announcement concerning the transactions contemplated by this Agreement or the
terms of this Agreement (other than to their respective employees or agents)
except as provided in this Section 8.1. The initial public announcement
concerning the transactions contemplated by this Agreement shall be made with
the prior approval of both Vendor and Purchaser, which approval shall not be
unreasonably delayed or withheld. Neither party will disclose the financial
terms of the Transaction, except for the Purchase Price, or the terms of the
representations and 

<PAGE>

warranties, indemnification obligations or similar provisions of this Agreement,
except as permitted below. A party may disclose terms of this Agreement that are
otherwise required to be kept confidential under this Section 6.1 where required
by judicial or other governmental order, provided that such party makes every
reasonable effort to obtain confidential treatment or similar protection to the
fullest extent available to avoid public disclosure of the terms of this
Agreement. A party required by law to make disclosure of the terms of this
Agreement will promptly notify the other party and permit the other party to
review and participate in the application process seeking confidential
treatment. Either party may disclose, under confidentiality and use
restrictions, such terms of this Agreement as are reasonably necessary to
disclose for purposes of customary due diligence relating to acquisition
transactions, financings, borrowings or the like. Both parties shall remain free
to disclose the existence of this Agreement and the origin and ownership of the
Assets to which rights have been granted or transferred under this Agreement.

     8.2 CONFIDENTIALITY.

          (a) Each party acknowledges that in the course of the performance of
this Agreement, it will obtain non-public technical and business information
which is the valuable confidential and proprietary information of the other
("Confidential Information"), including, without limitation, source code for any
computer software, source code documentation, Trade Secrets, all nonpublic
documents obtained from the disclosing party which the receiving party would not
otherwise have been entitled to obtain, information which is identified with a
suitable legend identifying it as confidential or proprietary information of a
party, or related information which is disclosed orally.

          (b) All such Confidential Information shall be treated as strictly
confidential by the receiving party and its employees, contractors and agents
and shall not be disclosed by the receiving party without the disclosing party's
prior written consent. However, the receiving party may disclose Confidential
Information of the disclosing party in accordance with judicial or other
governmental order, provided the receiving party shall continue to otherwise
hold the information in confidence, shall give the disclosing party reasonable
notice prior to such judicial or governmental disclosure and shall comply with
any applicable protective order or equivalent. The obligations of confidence
under this Agreement will not apply to information which the receiving party can
establish before a court of competent jurisdiction: (i) prior to or after the
time of disclosure becomes part of the public domain without the act or omission
of the party to whom it was disclosed; (ii) is disclosed to the receiving party
by a third party under no legal obligation to maintain the confidentiality of
such information; or (iii) was independently developed by the receiving party.

          (c) Neither party shall in any way duplicate all or any part of the
other party's Confidential Information, except in accordance with the terms and
conditions of this Agreement. Each party shall have an appropriate agreement
with each of its employees, contractors and agents having access to the other
party's Confidential Information sufficient to enable that party to comply with
all the terms of this Agreement. Each party agrees to protect the other's
Confidential Information with a fiduciary duty and shall adopt or maintain
procedures to protect such Confidential Information commensurate with such duty.

<PAGE>

          (d) Each party agrees not to disclose any such Confidential
Information without the prior written consent of the other, to anyone other than
that party's employees, contractors and agents who have a need to know same to
carry out the rights granted hereunder. Each party shall use its reasonable
efforts to protect all such Confidential Information from material harm, damage,
theft, tampering, sabotage, interference or unauthorized use, during the term of
this Agreement and during such time as such Confidential Information remains in
the possession of the other party.

          (e) Each party shall promptly report to the other any actual or
suspected violation of the terms of this Section 8.2, and shall take all
reasonable steps to prevent, control or remedy such violation.

          (f) In recognition of the unique and proprietary nature of the
Confidential Information disclosed by the parties, it is agreed that each
party's remedies at law for a breach by the other of its obligations under this
Section 8.2 shall be inadequate and the disclosing party shall, in the event of
such breach be entitled to seek equitable relief, including without limitation,
injunctive relief and specific performance, in addition to any other remedies
provided hereunder or available at law.

     8.3 EMPLOYEE MATTERS.

          (a) During the Interim Period, Purchaser hereby agrees to offer
employment to employees of the Vendor associated with the development, sales and
marketing of the Purchased Software as further described in SCHEDULE 8.3(a)(I)
hereto ("Required Offers") and shall also be entitled to offer employment to
those employees of the Vendor as further described in SCHEDULE 8.3(b)(II)
(together"Employees"). The parties agree that the Required Offers do not have to
be on the same terms and conditions as such Employees are currently employed by
Vendor; provided that Purchaser agrees to make offers of employment that are
reasonably calculated to provide a compensation package that is comparable in
value to that currently held by such Employees. Those Employees who accept such
offers shall hereafter collectively be referred to as the "Transferred
Employees". The Vendor will be responsible for severance obligations, if any,
with respect to Employees who do not accept the Purchaser's offer of employment.
If Purchaser terminates any Transferred Employee, Purchaser shall be responsible
for severance obligations, if any, to such Transferred Employees.

          (b) Except with the prior written consent of Vendor, for a period of
one (1) year from the Effective Date, Purchaser, and any Affiliate of Purchaser,
shall be prohibited from making any offer of employment to any employee of
Vendor, other than those Employees described in subsection 8.3(a).

ARTICLE 9. INDEMNIFICATION.


     9.1 INDEMNIFICATION BY VENDOR.

          (a) From and after Closing during the Indemnification Period, Vendor
shall hold 

<PAGE>

harmless, defend, indemnify and pay for the defense of each of the Purchaser
Indemnitees from and against, and shall compensate and reimburse each of the
Purchaser Indemnitees for, any Damages which are suffered or incurred by any of
the Purchaser Indemnitees or to which any of the Purchaser Indemnitees may
otherwise become subject (regardless of whether or not such Damages relate to
any third-party claim) and which arise from or as a result of, or are connected
with: 

               (i)  any inaccuracy in or breach of any representation or
                    warranty set forth in Article 3 hereunder or in any
                    certificate delivered by Vendor in connection with this
                    Agreement;

               (ii) any breach of any covenant or obligation of Vendor
                    hereunder;

               (iii) any Legal Proceeding resulting from the items referred to
                    in clause (i) or (ii) above (including any Legal Proceeding
                    commenced by any Purchaser Indemnitee for the purpose of
                    enforcing any of its rights under this Section 9.1 if such
                    Purchaser Indemnitee is the prevailing party in any such
                    Legal Proceeding);

               (iv) any third party claim commenced after the Closing Date which
                    alleges (i) that the Purchased Software, Trademarks, or any
                    other right or property acquired by Purchaser hereunder,
                    infringe any U.S. or Canadian copyright, trademark, trade
                    secret right, patent right that has been issued as of the
                    Effective Date, or other proprietary right. The foregoing
                    indemnification does not extend to any claim arising out of
                    a modification by Purchaser to the Purchased Software to the
                    extent such claim would not have arisen had such
                    modification not been made or the combination of any portion
                    of the Purchased Software with any other software or
                    hardware product.

                    THE FOREGOING STATES THE ENTIRE LIABILITY AND OBLIGATIONS OF
                    VENDOR AND THE EXCLUSIVE REMEDY OF PURCHASER WITH RESPECT TO
                    ANY ALLEGED INTELLECTUAL PROPERTY INFRINGEMENT BY THE
                    PURCHASED SOFTWARE.

          (b) The obligations of indemnification by the Vendor pursuant to
Section 9.1(a) are:

                    (i)  subject to the limitations referred to in Section 5.3
                         with respect to the survival of the representations and
                         warranties by the Purchaser;
                    (ii) subject to the limitations referred to in section 6.2 ;
                         and
                    (iii) subject to the provisions of sections 9.3, 9.4, 9.5
                         and 9.6.

     9.2 INDEMNIFICATION BY PURCHASER.

          (a) From and after Closing during the Indemnification Period,
Purchaser shall hold harmless, defend, indemnify and pay for the defense of each
of the Vendor Indemnitees from and against, and shall compensate and reimburse
each of the Vendor Indemnitees for, any Damages which are suffered or incurred
by any of the Vendor Indemnitees or to which any of the Vendor Indemnitees may
otherwise become subject (regardless of whether or not such 

<PAGE>

Damages relate to any third-party claim) and which arise from or as a result of,
or are connected with:

                    (i)  any inaccuracy in or breach of any representation or
                         warranty set forth in Article 4 hereunder or in any
                         certificate delivered by Purchaser in connection with
                         this Agreement;
                    (ii) any breach of any covenant or obligation of Purchaser
                         hereunder; or 
                    (iii) any Legal Proceeding resulting from the items referred
                         to in clause (i) or (ii) above (including any Legal
                         Proceeding commenced by any Vendor Indemnitee for the
                         purpose of enforcing any of its rights under this
                         Section 9.2 if such Purchaser Indemnitee is the
                         prevailing party in any such Legal Proceeding); or

                  (iv)    any third party claim after Closing alleging that any
                          product developed, marketed or distributed by or on
                          behalf of Purchaser, excluding the unmodified
                          Purchased Software, infringes any copyright,
                          trade-mark, confidentiality right, patent or other
                          intellectual property right of any third party.

          (b) The obligations of indemnification by the Vendor pursuant to
Section 9.2(a) are:

                    (i)  subject to the limitations referred to in Section 5.3
                         with respect to the survival of the representations and
                         warranties by the Purchaser;
                    (ii) subject to the limitations referred to in section 6.1 ;
                         and
                    (iii) subject to the provisions of sections 9.3, 9.4, 9.5
                         and 9.6.


     9.3 NOTICE OF CLAIM. If an Indemnified Party becomes aware of a claim or
Legal Proceeding in respect of which indemnification is provided for pursuant to
either of Section 9.1 or 9.2, as the case may be, the Indemnified Party shall
promptly give written notice of the claim or Legal Proceeding to the
Indemnifying Party. Such notice shall specify whether the claim or Legal
Proceeding arises as a result of a claim by a Person against the Indemnified
Party (a "THIRD PARTY CLAIM") or whether the claim does not so arise (a "DIRECT
CLAIM"), and shall also specify with reasonable particularity (to the extent
that the information is available):

     (a)  the factual basis for the claim; and

     (b)  the amount of the claim, if known, the basis thereof and documentation
          supporting the same.

If, through the fault of the Indemnified Party, the Indemnifying Party does not
receive notice of any claim or Legal Proceeding in time effectively to contest
the determination of any liability susceptible of being contested, then the
liability of the Indemnifying Party to the Indemnified Party under this Article
shall be reduced by the amount of any losses incurred by the Indemnifying Party
resulting from the Indemnified Party's failure to give such notice on a timely
basis.

<PAGE>

     9.4 DIRECT CLAIMS. In the case of a Direct Claim, the Indemnifying Party
shall have 30 days from receipt of notice of the claim within which to make such
investigation of the claim as the Indemnifying Party considers necessary or
desirable. For the purpose of such investigation, the Indemnified Party shall
make available to the Indemnifying Party the information relied upon by the
Indemnified Party to substantiate the claim, together with all such other
information as the Indemnifying Party may reasonably request, provided, however,
that the Indemnifying Party agrees at all times to maintain the Confidentiality
of such information. If both parties agree at or before the expiration of such
60 day period (or any mutually agreed upon extension thereof) to the validity
and amount of such claim, the Indemnifying Party shall immediately pay to the
Indemnified Party the full agreed upon amount of the claim, failing which the
matter shall be referred to binding arbitration in accordance with Section 10.9.

     9.5 THIRD PARTY CLAIMS. In the case of a Third Party Claim, the
Indemnifying Party shall have the right, at its expense, to participate in or
assume control of the negotiation, settlement or defense of the claim or Legal
Proceeding and, in such event, the Indemnifying Party shall reimburse the
Indemnified Party for all of the Indemnified Party's out-of-pocket expenses as a
result of such participation or assumption. If the Indemnifying Party elects to
assume such control, the Indemnified Party shall have the right to participate
in the negotiation, settlement or defence of such Third Party Claim and to
retain counsel to act on its behalf, provided that the fees and disbursements of
such counsel shall be paid by the Indemnified Party unless the Indemnifying
Party consents to the retention of such counsel at its expense. If the
Indemnifying Party, having elected to assume such control, thereafter fails to
defend the Third Party Claim within a reasonable time, the Indemnified Party
shall be entitled to assume such control and the Indemnifying Party shall be
bound by the results obtained by the Indemnified Party with respect to such
Third Party Claim and shall solely bear all reasonable expenses associated with
the defense of such Third Party Claim. If either Party makes a payment,
resulting in settlement of the Third Party Claim, which precludes a final
determination of the merits of the Third Party Claim and the Indemnified Party
and the Indemnifying Party are unable to agree whether such payment was
unreasonable in the circumstances having regard to the amount and merits of the
Third Party Claim, then such dispute shall be referred to and finally settled by
binding arbitration in accordance with Section 10.9.


     9.6 SETTLEMENT OF THIRD PARTY CLAIMS. If the Indemnifying Party fails to
assume control of the defense of any Third Party Claim, the Indemnified Party
shall have the exclusive right to contest, settle or pay the amount claimed and
the Indemnifying Party shall be bound by the results obtained by the Indemnified
Party with respect to such Third Party Claim and shall solely bear all
reasonable expenses associated with the defense of such Third Party Claim.
Whether or not the Indemnifying Party assumes control of the negotiation,
settlement or defense of any Third Party Claim, neither party shall settle any
Third Party Claim without the written consent of the other party, which consent
shall not be unreasonably withheld or delayed; provided, however, that the
liability of such party shall be limited to the proposed settlement amount if
any such consent is not obtained for any reason within a reasonable time after
the request therefor. If the exercise by Purchaser of any of the rights granted
to it pursuant to this Agreement is enjoined or, in Vendor's reasonable opinion,
is likely to be enjoined due to the type of infringement or misappropriation
specified in 

<PAGE>

Paragraph 9.1 above, without prejudice to the rights and remedies of Purchaser,
shall upon request of Purchaser and at Purchaser's expense, provide reasonable
cooperation to Purchaser and its counsel with all necessary technical
information related to the design regarding defense or other resolution of the
claim.

ARTICLE 10. MISCELLANEOUS.

     10.1 GOVERNING LAWS. It is the intention of the parties that the laws of
the State of New York (irrespective of its choice of law principles and
excluding the United Nations Convention on Contracts for the International Sale
of Goods and any legislation implementing such Convention, if otherwise
applicable) shall govern the validity of this Agreement, the construction of its
terms, and the interpretation and enforcement of the rights and duties of the
parties.

     10.2 BINDING UPON SUCCESSORS AND ASSIGNS. Subject to, and unless otherwise
provided in, this Agreement, each and all of the covenants, terms, provisions,
and agreements contained herein shall be binding upon, and inure to the benefit
of, the permitted successors, executors, heirs, representatives, administrators
and assigns of the parties.

     10.3 SEVERABILITY. If any provision of this Agreement, or the application
thereof, shall for any reason and to any extent be invalid or unenforceable, the
remainder of this Agreement and application of such provision to other persons
or circumstances shall be interpreted so as best to reasonably effect the intent
of the parties. The parties further agree to replace such void or unenforceable
provision of this Agreement with a valid and enforceable provision which will
achieve, to the extent possible, the economic, business and other purposes of
the void or unenforceable provision.

     10.4 ENTIRE AGREEMENT. This Agreement, the exhibits hereto, the documents
referenced herein, including, without limitation the Securities Purchase
Agreement, and the exhibits thereto, constitute the entire understanding and
agreement of the parties with respect to the subject matter hereof and thereof
and supersede all prior and contemporaneous agreements or understandings,
inducements or conditions, express or implied, written or oral, between the
parties with respect hereto and thereto.

     10.5 COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which shall be an original as against any party whose
signature appears thereon and all of which together shall constitute one and the
same instrument. This Agreement shall become binding when one or more
counterparts hereof, individually or taken together, shall bear the signatures
of all of the parties reflected hereon as signatories. A facsimile copy of this
Agreement bearing the signature of a party to this Agreement shall be considered
an original as against such party.

     10.6 EXPENSES. Each party shall pay all of its own costs and expenses
incurred with respect to the negotiation, execution and delivery of this
Agreement and the exhibits hereto including all legal and accounting fees and
expenses, whether or not the Transaction is consummated.

<PAGE>

     10.7 AMENDMENT AND WAIVERS. Any term or provision of this Agreement may be
amended, and the observance of any term of this Agreement may be waived (either
generally or in a particular instance and either retroactively or prospectively)
only by a writing signed by the party to be bound thereby. The waiver by a party
of any breach hereof for default in payment of any amount due hereunder or
default in the performance hereof shall not be deemed to constitute a waiver of
any other default or any succeeding breach or default.

     10.8 NO WAIVER. The failure of any party to enforce any of the provisions
hereof shall not be construed to be a waiver of the right of such party
thereafter to enforce such provisions.

     10.9 ARBITRATION. The parties agree that they shall use all reasonable
efforts to amicably settle disagreements arising from or in connection with this
Agreement. To this effect, following notice of either party to the other of a
disagreement (which shall include any failure to agree upon a matter to be
agreed upon), the parties shall consult and negotiate with one another in good
faith an understanding to reach a just and equitable solution. If those attempts
fail after a period of fifteen (15) Business Days from the time the parties have
been notified of the disagreement, then either party may refer the matter to
arbitration, by written notice to the other party.

Notwithstanding the foregoing, the parties shall be entitled to seek injunctive
relief or other equitable remedies from any court of competent jurisdiction.
Except where clearly prevented by the issue in dispute, the parties agree to
continue performing their respective obligations under this Agreement and the
other related agreements entered into in connection with this Agreement while
the dispute is being resolved unless and until such obligations are terminated
or expire in accordance with the provisions hereof.

     10.10 NOTICES. Any notice provided for or permitted under this Agreement
will be treated as having been given when (i) delivered personally, (ii) sent by
confirmed facsimile with a copy sent by mail, (iii) sent by commercial overnight
courier with written verification of receipt, or (iv) mailed postage prepaid by
certified or registered mail, return receipt requested, to the party to be
notified, at the address set forth below, or at such other place of which the
other party has been notified in accordance with the provisions of this Section
10.10.


Vendor:             Corel Corporation 
                    1600 Carling Ave. 
                    Ottawa, Ontario 
                    K1Z 8R7 
                    Attention:  President

With copy to:       Legal Department


Purchaser:          GraphOn Corporation

<PAGE>

                    150 Harrison Avenue
                    Campbell, CA 95008
                    USA
                    Attention: President

With copy to:       Brobeck, Phleger & Harrison LLP
                    Two Embarcadero Place
                    2200 Geng Road
                    Palo Alto,  California 94303-0913
                    Attention: Thomas A. Bevilacqua
                    Fax: 650-496-2722

Such notice will be treated as having been received upon actual receipt.

     10.11 CONSTRUCTION OF AGREEMENT. The titles and headings herein are for
reference purposes only and shall not in any manner limit the construction of
this Agreement which shall be considered as a whole.

     10.12 NO PARTNERSHIP OR JOINT VENTURE. Nothing contained in this Agreement
shall be deemed or construed as creating a partnership, joint venture between
the parties. No party is by virtue of this Agreement authorized as an agent,
employee or legal representative of the other party. No party shall have the
power to control the activities and operations of the other and their status is,
and at all times, will continue to be, that of independent contractors with
respect to each other. No party shall have any power or authority to bind or
commit the other party. No party shall hold itself out as having any authority
or relationship in contravention of this Section 10.12.

     10.13 FURTHER ASSURANCES. Each party agrees to cooperate fully with the
other parties and to execute such further instruments, documents and agreements
and to give such further written assurances, as may be reasonably requested by
the other party to better evidence and reflect the transactions described herein
and contemplated hereby and to carry into effect the intents and purposes of
this Agreement

     10.14 ABSENCE OF THIRD PARTY BENEFICIARY RIGHTS. No provisions of this
Agreement are intended, nor shall be interpreted, to provide or create any third
party beneficiary rights or any other rights of any kind in any client,
customer, affiliate, shareholder, partner of any party or any other person or
entity unless specifically provided otherwise herein, and, except as so
provided, all provisions hereof shall be personal solely between the parties to
this Agreement.

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first set forth above.


COREL CORPORATION                                 COREL CORPORATION LIMITED

<PAGE>

Per:                                              Per:  
   ---------------------------                       --------------------------
   Name:                                             Name:
   Title:                                            Title:


Per:
   ---------------------------
   Name:
   Title:



COREL, INC.                                       GRAPHON CORPORATION


Per:                                              Per:  
   ----------------------------                      --------------------------
   Name:                                             Name: Walt Keller
   Title:                                            Title: President





<PAGE>

                                                                    Exhibit 10.5








    -------------------------------------------------------------------------


                          SECURITIES PURCHASE AGREEMENT


                                      AMONG


                               GRAPHON CORPORATION

                                   AND EACH OF

                  COREL CORPORATION, COREL CORPORATION LIMITED

                                 AND COREL, INC.


                            -------------------------

                          Dated as of December 18, 1998
                           --------------------------




    -------------------------------------------------------------------------




<PAGE>


                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                Page
<S>                                                                             <C>
ARTICLE 1 DEFINITIONS..............................................................1
         1.1      Definitions......................................................1
         1.2      Accounting Terms; Financial Statements...........................7

ARTICLE 2 PURCHASE AND SALE........................................................7
         2.1      Purchase and Sale of Securities..................................7
         2.2      Closing .........................................................7

ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF THE COMPANY............................7
         3.1      Corporate Existence and Power....................................7
         3.2      Authorization; No Contravention..................................8
         3.3      Governmental Authorization.......................................8
         3.4      Binding Effect...................................................8
         3.5      Litigation.......................................................8
         3.6      Compliance with Laws.............................................8
         3.7      Capitalization...................................................8
         3.8      No Default or Breach; Contractual Obligations....................9
         3.9      Title to Properties.............................................10
         3.10     FIRPTA..........................................................10
         3.11     Financial Statements............................................10
         3.12     Taxes...........................................................10
         3.13     No Material Adverse Change......................................11
         3.14     Investment Company..............................................11
         3.15     Private Offering................................................11
         3.16     Labor Relations.................................................11
         3.17     Title to Assets.................................................11
         3.18     Liabilities.....................................................12
         3.19     Intellectual Property...........................................12
         3.20     Insurance.......................................................12
         3.21     Environmental Matters...........................................12
         3.22     Broker's, Finder's or Similar Fees..............................13
         3.23     Complete Disclosure.............................................13
         3.24     Best Efforts....................................................13
         3.25     Private Placement Memorandum....................................13

ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF THE PURCHASERS........................13
         4.1      Existence and Power.............................................13
         4.2      Authorization; No Contravention.................................13
         4.3      Governmental Authorization; Third Party Consents................13
         4.4      Binding Effect..................................................13
         4.5      Purchase for Own Account........................................14
         4.6      Restricted Securities...........................................14
         4.7      Broker's, Finder's or Similar Fees..............................15
</TABLE>


<PAGE>

<TABLE>
<S>                                                                             <C>
ARTICLE 5 CONDITIONS TO THE OBLIGATION OF THE PURCHASER TO CLOSE..................15
         5.1      Representations and Covenants...................................15
         5.2      Secretary's Certificate.........................................15
         5.3      Documents.......................................................15
         5.4      Warrant.........................................................15
         5.5      Purchased Shares................................................15
         5.6      Consents and Approvals..........................................16
         5.7      Securities Exemption............................................16
         5.8      Due Diligence Review............................................16
         5.9      Additional Private Placement Closing............................16
         5.10     Private Placement Memorandum....................................16

ARTICLE 6 CONDITIONS TO THE OBLIGATION OF THE COMPANY TO CLOSE....................16
         6.1      Representations and Covenants...................................16
         6.2      Secretary's Certificate.........................................17
         6.3      Documents.......................................................17
         6.4      Asset Purchase Agreement........................................17
         6.5      Consents and Approvals..........................................17

ARTICLE 7 AFFIRMATIVE COVENANTS...................................................17
         7.1      Financial Statements and Other Information......................17
         7.2      Reservation of Common Stock.....................................18
         7.3      Books and Records...............................................18
         7.4      Board of Directors..............................................18
         7.5      Issuance of Stock...............................................18
         7.6      Market Stand-Off................................................18
         7.7      Registration....................................................19
         7.8      Preemptive Rights...............................................19

ARTICLE 8 MISCELLANEOUS...........................................................20
         8.1      Survival of Representations and Warranties......................20
         8.2      Notices.........................................................20
         8.3      Successors and Assigns; Third Party Beneficiaries...............21
         8.4      Amendment and Waiver............................................21
         8.5      Counterparts....................................................21
         8.6      Headings........................................................22
         8.7      GOVERNING LAW...................................................22
         8.8      Severability....................................................22
         8.9      Entire Agreement................................................22
         8.10     Further Assurances..............................................22
         8.11     Arbitration.....................................................22

ARTICLE 9 TERMINATION OF AGREEMENT................................................23
         9.1      TERMINATION.....................................................23
         9.2      SURVIVAL........................................................23

ARTICLE 10 INDEMNIFICATION........................................................23
         10.1     Indemnification by Purchaser....................................23
</TABLE>


<PAGE>

<TABLE>
<S>                                                                             <C>
         10.2     Indemnification by Company......................................24
         10.3     Notice of Claim.................................................25
         10.4     Direct Claims...................................................26
         10.5     Third Party Claims..............................................26
         10.6     Settlement of Third Party Claims................................26

ARTICLE 11 LIMITATION ON WARRANTY CLAIMS..........................................27
         11.1     Limitation on Warranty Claim(s) by Purchaser....................27
         11.2     Limitation on Warranty Claim(s) by Company......................27
</TABLE>


EXHIBITS

A.       Warrant
B.       Asset Purchase Agreement

COMPANY DISCLOSURE SCHEDULES

3.5               Litigation
3.8               Defaults or Breaches of Contractual Obligations; Contractual
                  Obligations
3.13              No Material Adverse Change; Ordinary Course of Business
3.19(b)           Intellectual Property
3.19(c)           Intellectual Property



<PAGE>


                          SECURITIES PURCHASE AGREEMENT


                  SECURITIES PURCHASE AGREEMENT, dated as of December 18, 1998
(this "Agreement"), among GRAPHON CORPORATION, a California corporation (the
"Company") and COREL CORPORATION, a corporation incorporated under the laws of
Canada, together with its wholly owned subsidiaries, COREL CORPORATION LIMITED,
a corporation incorporated under the laws of the Republic of Ireland, and COREL,
INC., a corporation incorporated under the laws of the State of Delaware
(collectively, the "Purchaser")

                  WHEREAS, upon the terms and conditions set forth in this
Agreement, the Company proposes to issue and sell to Purchaser (i) an aggregate
of 3,886,503 shares, no par value per share, of Common Stock of the Company (the
"Common Stock") and (ii) a warrant to purchase up to 388,650 shares of Common
Stock pursuant to the terms and conditions of the Warrant to Purchase Common
Stock of GraphOn Corporation, dated the date hereof, attached hereto as EXHIBIT
A (the "Warrant").

                  WHEREAS, upon the terms and conditions set forth in that
certain asset purchase agreement by and between the Company and the Purchaser,
dated the date hereof, the form of which is attached hereto as EXHIBIT B (the
"Asset Purchase Agreement"), Purchaser shall transfer the Assets (as defined
therein) to the Company and the Company shall assume the Assumed Liabilities (as
defined therein).

                  NOW, THEREFORE, in consideration of the mutual covenants and
agreements set forth herein and for good and valuable consideration, the receipt
and adequacy of which hereby is acknowledged, the parties hereto agree as
follows:

                                   ARTICLE 1
                                   DEFINITIONS

         1.1 DEFINITIONS. As used in this Agreement, and unless the context
requires a different meaning, the following terms have the meanings indicated:

                  "ADDITIONAL PURCHASED SHARES" has the meaning given in
Section 7.5 of this Agreement.

                  "AFFILIATE" shall mean any Person who is an "affiliate" as
defined in Rule 12b-2 of the General Rules and Regulations under the Exchange
Act.

                  "AGREEMENT" has the meaning set forth in the recitals to this
Agreement, as the same may be amended, supplemented or modified in accordance
with the terms hereof.

                  "ARTICLES OF INCORPORATION" means the Articles of
Incorporation of the Company in effect on the Closing Date as the same may be
amended from time to time.

                  "ASSET PURCHASE AGREEMENT" has the meaning set forth in the
recitals to this Agreement.


<PAGE>


                  "AUDITED FINANCIAL STATEMENTS" has the meaning set forth in
Section 3.11 of this Agreement.

                  "BOARD OF DIRECTORS" means the Board of Directors of the
Company.

                  "BUSINESS DAY" means any day other than a Saturday, Sunday or
other day on which commercial banks in the State of California are authorized or
required by law or executive order to close.

                  "BY-LAWS" means the by-laws of the Company in effect on the
Closing Date, as the same may be amended from time to time.

                  "CAPITAL LEASE OBLIGATIONS" of any Person shall mean, as of
the date of determination, the obligations of such Person to pay rent or other
amounts under any lease of (or other arrangement conveying the right to use)
real or personal property, or a combination thereof, which obligations are
required to be classified and accounted for as capital leases on a balance sheet
of such Person under GAAP and, for the purposes of this Agreement, the amount of
such obligations at any time shall be the capitalized amount thereof at such
time determined in accordance with GAAP consistently applied.

                  "CLAIMS" has the meaning set forth in Section 3.5 of this
Agreement.

                  "CLOSING" has the meaning set forth in Section 2.2 of this
Agreement.

                  "CLOSING DATE" has the meaning set forth in Section 2.2 of
this Agreement.

                  "CODE" means the Internal Revenue Code of 1986, as amended, or
any successor thereto.

                  "COMMISSION" means the Securities and Exchange Commission or
any similar agency then having jurisdiction to enforce the Securities Act.

                  "COMMON STOCK" has the meaning set forth in the recitals to
this Agreement.

                  "COMPANY" has the meaning set forth in the recitals to this
Agreement.

                  "COMPANY DISCLOSURE SCHEDULE" has the meaning set forth in the
first paragraph of Article 3 of this Agreement.

                  "COMPANY INDEMNITEES" shall the following Persons:

                           (a) Company;

                           (b) Company's current and future Affiliates, but
excluding Purchaser;

                           (c) the respective Representatives of the Persons
referred to in clauses (a) and (b) above; and


                                       2
<PAGE>


                           (d) the respective successors and assigns of the
Persons referred to in clauses (a), (b) and (c) above.

                  "CONDITION OF THE COMPANY" means the assets, properties,
results of operations or financial condition of the Company, taken as a whole.

                  "CONTINGENT OBLIGATION" means, applied to any Person, any
liability of that Person with respect to any Indebtedness, lease, guaranty,
letter of credit or other similar obligation.

                  "CONTRACTUAL OBLIGATIONS" means as to any Person, any
provision of any security issued by such Person or of any agreement,
undertaking, contract, indenture, mortgage, deed of trust or other instrument to
which such Person is a party or by which it or any of its property is bound.

                  "COPYRIGHTS" means any foreign or United States copyright
registrations and applications for registration thereof, and any non-registered
copyrights.

                  "DAMAGES" shall include any loss, damage, injury, liability,
claim, demand, settlement, judgment, award, fine, penalty, tax, fee (including
reasonable legal fees), charge, costs (including reasonable costs of
investigation) or reasonable expenses of any nature.

                  "DIRECT CLAIM" has the meaning set forth in Section 10.3 of
this Agreement.

                  "EMPLOYMENT AGREEMENTS" has the meaning set forth in the
recitals to this Agreement.

                  "ENVIRONMENTAL LAWS" means federal, state and local laws,
regulations and codes, as well as orders, decrees, judgments or injunctions
issued, promulgated, approved or entered thereunder relating to pollution or
protection of the environment.

                  "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the Commission thereunder.

                  "FINANCIAL STATEMENTS" has the meaning set forth in
Section 3.11.

                  "GAAP" means United States generally accepted accounting
principles consistently applied.

                  "GOVERNMENTAL AUTHORITY" means the government of any nation,
state, city, locality or other political subdivision thereof, any entity
exercising executive, legislative, judicial, regulatory or administrative
functions of or pertaining to government, and any corporation or other entity
owned or controlled, through stock or capital ownership or otherwise, by any of
the foregoing.

                  "INDEBTEDNESS" means, as to any Person, (a) all obligations of
such Person for borrowed money (including, without limitation, reimbursement and
all other obligations with respect to surety bonds, letters of credit and
bankers' acceptances, whether or not matured), (b) all obligations of such
Person evidenced by notes, bonds, debentures or similar instruments,


                                       3
<PAGE>

(c) all Capital Lease Obligations of such Person, (d) all indebtedness secured
by any Lien (other than Liens in favor of lessors under leases other than leases
included in clause (c)) on any property or asset owned or held by that Person
regardless of whether the indebtedness secured thereby shall have been assumed
by that Person or is non-recourse to the credit of that Person and (e) any
Contingent Obligations of such Person.

                  "INDEMNIFICATION PERIOD" means the period commencing on the
Closing Date and terminating on the date which is the one year anniversary
thereof.

                  "INDEMNIFIED PARTY" has the meaning set forth in Section 10.3
of this Agreement.

                  "INITIAL PUBLIC OFFERING" has the meaning set forth in
Section 7.5 of this Agreement.

                  "INTELLECTUAL PROPERTY" has the meaning set forth in
Section 3.19 of this Agreement.

                  "INTERNET ASSETS" means any internet domain names and other
computer user identifiers and any rights in and to sites on the worldwide web,
including rights in and to any text, graphics, audio and video files and html or
other code incorporated in such sites.

                  "LEGAL PROCEEDING" shall mean any action, suit, litigation,
arbitration proceeding (including any civil, criminal, administrative,
investigative or appellate proceeding), hearing, inquiry, audit, examination or
investigation commenced, brought, conducted or heard by or before, or otherwise
involving any court or other Governmental Authority or any arbitrator or
arbitration panel.

                  "LIABILITIES" has the meaning set forth in Section 3.18 of
this Agreement.

                  "LIEN" means any mortgage, deed of trust, pledge,
hypothecation, assignment, encumbrance, lien (statutory or other) or preference,
priority, right or other security interest or similar preferential arrangement
of any kind or nature whatsoever (excluding preferred stock and equity related
preferences).

                  "MATERIAL CONTRACTUAL OBLIGATION" has the meaning set forth in
Section 3.8 of this Agreement.

                  "ORDERS" has the meaning set forth in Section 3.2 of this
Agreement.

                  "PATENTS" means any foreign or United States patents and
patent applications, including any divisions, continuations,
continuations-in-part, substitutions or reissues thereof, whether or not patents
are issued on such applications and whether or not such applications are
modified, withdrawn or resubmitted.

                  "PERSON" means any individual, firm, corporation, partnership,
trust, incorporated or unincorporated association, joint venture, joint stock
company, limited liability company, Governmental Authority or other entity of
any kind, and shall include any successor (by merger or otherwise) of such
entity.



                                       4
<PAGE>


                  "PLACEMENT AGENT" has the meaning set forth in Section 3.7 of
this Agreement.

                  "PURCHASER INDEMNITEE" shall mean the following Persons:

                           (a) Purchaser;

                           (b) Purchaser's current and future Affiliates, but
excluding Company;

                           (c) the respective Representatives of the Persons
referred to in clauses (a) and (b) above; and

                           (d) the respective successors and assigns of the
Persons referred to in clauses (a), (b) and (c) above.

                  "PREEMPTIVE RIGHT NOTICE" has the meaning set forth in
Section 7.8(b) of the Agreement.

                  "PREFERRED STOCK" has the meaning set forth in Section 3.7 of
this Agreement.

                  "PRIVATE PLACEMENT MEMORANDUM" has the meaning set forth in
Section 3.7 of this Agreement.

                  "PRO RATA PORTION" has the meaning set forth in Section 7.8(c)
of this Agreement.

                  "PURCHASED SHARES" has the meaning set forth in Section 2.1 of
this Agreement.

                  "PURCHASER" has the meaning set forth in the recitals to this
Agreement.

                  "REGULATIONS" means the Treasury Regulations promulgated under
the Code.

                  "REPRESENTATIVES" means officers, directors, employees,
agents, legal counsel, accountants, advisors and representatives.

                  "REQUIREMENTS OF LAW" means, as to any Person, any law,
statute, treaty, rule, regulation, right, privilege, qualification, license or
franchise or determination of an arbitrator or a court or other Governmental
Authority or stock exchange, in each case applicable to or binding upon such
Person or any of its property or to which such Person or any of its property is
subject or pertaining to any or all of the transactions contemplated or referred
to herein.

                  "SECURITIES ACT" means the Securities Act of 1933, as amended,
and the rules and regulations of the Commission thereunder.

                  "SELL" has the meaning set forth in Section 7.6 of this
Agreement.

                  "SOFTWARE" means any computer software programs, source code,
object code, data and documentation.

                  "STOCK EQUIVALENTS" means any security or obligation which is
by its terms convertible into or exchangeable for shares of Common Stock or
other capital stock or securities

                                       5
<PAGE>

of the Company, and any option (including options granted pursuant to the Stock
Option Plan), warrant or other subscription or purchase right with respect to
Common Stock or such other capital stock or securities.

                  "STOCK OPTION PLAN" means the 1998 Stock Option/Stock Issuance
Plan pursuant to which up to an aggregate of 791,500 of the fully diluted shares
of Common Stock outstanding immediately following the Closing are or may be
subject to option grants to certain employees, directors and consultants of the
Company and other Persons approved by the Board of Directors.

                  "SUBSIDIARIES" means, as of the date hereof, a Person of which
50% or more of the voting power of the outstanding securities or 50% or more of
the outstanding economic equity interest is held, directly or indirectly, by the
Company.

                  "TAXABLE" has the meaning set forth in Section 3.12 of this
Agreement.

                  "TAX AUTHORITY" has the meaning set forth in Section 3.12 of
this Agreement.

                  "TAXES" has the meaning set forth in Section 3.12 of this
Agreement.

                  "TAX RETURN" has the meaning set forth in Section 3.12 of this
Agreement.

                  "THIRD PARTY CLAIM" has the meaning set forth in Section 10.3
of this Agreement.

                  "TRADE SECRETS" means any trade secrets, research records,
processes, procedures, manufacturing formulae, technical know-how, technology,
blue prints, designs, plans, inventions (whether patentable and whether reduced
to practice), invention disclosures and improvements thereto.

                  "TRADEMARKS" means any foreign or United States trademarks,
service marks, trade dress, trade names, brand names, designs and logos,
corporate names, product or service identifiers, whether registered or
unregistered, and all registrations and applications for registration thereof.

                  "TRANSACTION DOCUMENTS" means collectively, this Agreement,
the Warrant, and the Asset Purchase Agreement.

                  "TRANSFER TAXES" has the meaning set forth in Section 3.12 of
this Agreement.

                  "UNAUDITED FINANCIAL STATEMENTS" has the meaning set forth in
Section 3.11 of this Agreement.

                  "WARRANT" has the meaning set forth in the recitals to this
Agreement.

                  "WARRANTY CLAIM" means a claim made by either the Company or
the Purchaser based on or with respect to the inaccuracy or non-performance or
non-fulfillment or breach of any representation, covenant or warranty made by
the other party contained in this Agreement or the Asset Purchase Agreement or
contained in any document or certificate given in order to carry out the
transactions contemplated hereby.


                                       6
<PAGE>


         1.2 ACCOUNTING TERMS; FINANCIAL STATEMENTS. All accounting terms used
herein not expressly defined in this Agreement shall have the respective
meanings given to them in accordance with GAAP.

                                   ARTICLE 2
                                PURCHASE AND SALE

         2.1 PURCHASE AND SALE OF SECURITIES. Subject to the terms and
conditions herein set forth, the Company agrees to issue and sell to the
Purchaser, and the Purchaser agrees that it will purchase from the Company, on
the Closing Date, 3,886,503 shares of Common Stock (the "Purchased Shares") and
the Warrant. In consideration of the purchase and sale of the Purchased Shares
and the Warrant, the Company and the Purchaser each agree to execute and deliver
the Asset Purchase Agreement.

         2.2 CLOSING . Unless this Agreement shall have been terminated pursuant
to Article 9 and subject to the satisfaction or waiver of the conditions set
forth in Articles 5 and 6, the closing of the sale and purchase of the Purchased
Shares and the Warrant, and the execution and delivery of the Asset Purchase
Agreement (the "Closing") shall take place at the Palo Alto offices of Brobeck
Phleger & Harrison LLP at 10:00 a.m., Pacific Daylight Time, on the Business Day
on which the conditions set forth in Articles 5 and 6 shall be satisfied or
waived in accordance with this Agreement, or at such other time, place and date
that the Company and the Purchaser mutually may agree (the "Closing Date"). On
the Closing Date, the Company shall deliver to the Purchaser (i) a certificate
representing the Purchased Shares and (ii) the Warrant being purchased by such
Purchaser against delivery to the Company by the Purchaser of the Asset Purchase
Agreement.

                                   ARTICLE 3
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                  Except as set forth in a disclosure schedule delivered by the
Company to the Purchaser concurrently with the execution hereof (the "Company
Disclosure Schedule") identifying each such exception by a specific reference to
the applicable Section of this Article 3 (it being understood that any exception
identified by reference to one Section of this Article which reasonably is
applicable to another Section of this Article shall be deemed an exception to
such other Section of this Article), the Company represents and warrants to the
Purchaser the following:

         3.1 CORPORATE EXISTENCE AND POWER. The Company (a) is a corporation
duly incorporated, validly existing and in good standing under the laws of the
jurisdiction of its incorporation, (b) has all requisite power and authority to
own and operate its property, to lease the property it operates as lessee and to
conduct the business in which it currently is engaged, (c) is duly qualified as
a foreign corporation, licensed and in good standing under the laws of each
jurisdiction in which its ownership, lease or operation of property or the
conduct of its business requires such qualification, except to the extent that
the failure to do so would not reasonably be

                                       7
<PAGE>


expected to have a material adverse effect on the Condition of the Company and
(d) has the corporate power and authority to execute, deliver and perform its
obligations under this Agreement and each of the other Transaction Documents to
which it is a party.

         3.2 AUTHORIZATION; NO CONTRAVENTION. The execution, delivery and
performance by the Company of this Agreement and each of the other Transaction
Documents and the transactions contemplated hereby and thereby (a) have been
duly authorized by all necessary corporate action of the Company, (b) do not
contravene the terms of the Certificate of Incorporation or the By-laws, (c) do
not violate, conflict with or result in any breach or contravention of, or
result in the creation of any material Lien under any Material Contractual
Obligation of the Company or Requirement of Law applicable to the Company and
(d) do not violate any judgment, injunction, writ, award, decree or order
(collectively, "Orders") of any Governmental Authority against, or binding upon,
the Company.

         3.3 GOVERNMENTAL AUTHORIZATION. No approval, consent, compliance,
exemption, authorization or other action by, or notice to or filing with any
Governmental Authority or any other person, and no lapse of a waiting period
under a Requirement of Law, is necessary or required in connection with the
execution, delivery or performance by, or enforcement against, the Company of
this Agreement and the other Transaction Documents or the transactions
contemplated hereby and thereby, except for the filing pursuant to Section
25102(f) of the California Corporate Securities Law of 1968, as amended, and the
rules thereunder.

         3.4 BINDING EFFECT. This Agreement has been, and as of the Closing Date
each of the other Transaction Documents will have been duly executed and
delivered by the Company, and this Agreement constitutes, and as of the Closing
Date each of the other Transaction Documents will constitute, the legal, valid
and binding obligations of the Company enforceable against the Company in
accordance with their terms, except as enforceability may be limited by
applicable bankruptcy, insolvency, reorganization, fraudulent conveyance or
transfer, moratorium or similar laws affecting the enforcement of creditors'
rights generally and by general principles of equity relating to enforceability
(regardless of whether considered in a proceeding at law or in equity).

         3.5 LITIGATION. Except as set forth in Section 3.5 of the Company
Disclosure Schedule, there are no actions, suits, proceedings, claims,
complaints, disputes, arbitrations or investigations (collectively, "Claims")
pending at law, in equity, in arbitration or before any Governmental Authority
by or against the Company. No Order has been issued by any court or other
Governmental Authority against the Company purporting to enjoin or restrain the
execution, delivery or performance of this Agreement or any of the other
Transaction Documents.

         3.6 COMPLIANCE WITH LAWS. The Company is in compliance in all material
respects with all Requirements of Law and all Orders issued by any court or
Governmental Authority against the Company.

         3.7 CAPITALIZATION.

                  (a) On the Closing Date, after giving effect to the
transactions contemplated by this Agreement, the authorized capital stock of the
Company shall consist of (i) 50,000,000 shares of Common Stock, of which
11,895,003 are issued and outstanding, including the

                                       8
<PAGE>

Purchased Shares, and (ii) 5,000,000 shares of preferred stock, no par value per
share (the "Preferred Stock"), none of which are issued and outstanding, and
Stock Equivalents, including the Warrant but excluding shares of Common Stock
issued or issuable under the Stock Option Plan, exercisable for or convertible
into up to 1,125,000 shares of Common Stock. The Company has reserved 1,916,500
shares of Common Stock for issuance under the Stock Option Plan and pursuant to
the exercise or conversion of issued and outstanding Stock Equivalents,
including the Warrant, as set forth in Section 3.7 of the Company Disclosure
Schedule. The Company has entered into that certain Private Placement
Memorandum, dated September 2, 1998 (with any supplement thereto, the "Private
Placement Memorandum"), with Spencer Trask Securities Incorporated ("the
Placement Agent") regarding the issuance and sale of units, each consisting of
100,000 shares of Common Stock. Pursuant to the Private Placement Memorandum,
the Company has sold 1,000,000 shares of Common Stock and the Company intends to
issue and sell between 1,500,000 and 3,500,000 additional shares of Common Stock
(which stock the Company covenants shall be the only stock issued and sold in
connection with any exercise of the preemptive rights described in clause "iii"
below in connection with the issuance of the Purchased Shares, the Additional
Purchased Shares or the Warrant pursuant to this Agreement) and the Company has
a discretionary option to sell up to 675,000 additional shares of Common Stock
solely to cover over-subscriptions. Other than (i) such Stock Equivalents, (ii)
the requirement that the Placement Agent consent to the sale of any securities
by the Company or any rights to acquire any securities of the Company (except
pursuant to options, warrants, rights or option plans described in the Private
Placement Memorandum) at a price less than $1.00 per share, (iii) the rights
which, for greater certainty, are deemed to be Stock Equivalents granted to each
investor pursuant to the Private Placement Memorandum to purchase pro rata
portions of any securities offered by the Company, including the securities
offered hereby, prior to the issuance of such securities and until such time as
there is the Initial Public Offering, and as contemplated by this Agreement,
there are no options, warrants, conversion privileges, subscription or purchase
rights or other rights presently outstanding to purchase or otherwise acquire
(a) any authorized but unissued, unauthorized or treasury shares of the
Company's capital stock, (b) any Stock Equivalents or (c) other securities of
the Company. The issued and outstanding shares of Common Stock are all duly
authorized, validly issued, fully paid (to the Company's knowledge) and
nonassessable, and were issued in compliance with the registration and
qualification requirements of all applicable federal and state securities laws.
The Purchased Shares, the Warrant and the Additional Purchased Shares are duly
authorized, and when issued and sold pursuant to this Agreement, will be validly
issued, and the Purchased Shares and, if issued, the Additional Purchased
Shares, will be fully paid and nonassessable and, assuming the truth and
accuracy of the Purchaser's representations and warranties contained herein,
will be issued in compliance with the registration and qualification
requirements of all applicable federal and state securities laws. The Company
has no Subsidiaries.

         3.8 NO DEFAULT OR BREACH; CONTRACTUAL OBLIGATIONS. Section 3.8 of the
Company Disclosure Schedule lists all of the Contractual Obligations to which
the Company is a party, which involve an outstanding amount in excess of
$100,000 or which are otherwise material to the Condition of the Company (each
of the foregoing, a "Material Contractual Obligation"). The Company has not
received notice of, and is not in default under, any Material Contractual
Obligation. All of such Material Contractual Obligations are valid, subsisting,
in full force and effect and binding upon the Company. The Company has not
received any notice of termination of any Material Contractual Obligation.



                                       9
<PAGE>


         3.9 TITLE TO PROPERTIES. The Company has good, record and marketable
title in fee simple to, or holds interests as lessee under leases in full force
and effect in, all real property used by it in connection with its business or
otherwise owned or leased by it, except for such defects in title as would not,
individually or in the aggregate, have a material adverse effect on the
Condition of the Company.

         3.10 FIRPTA. The Company is not a "foreign person" within the meaning
of Section 1445 of the Code.

         3.11 FINANCIAL STATEMENTS. The Company has delivered to the Purchaser
the audited consolidated financial statements of the Company (balance sheet and
statements of operation, cash flow and stockholders' equity, together with the
notes thereto) for the fiscal period ended December 31, 1997 (the "Audited
Financial Statements"), and the unaudited consolidated financial statements of
the Company (balance sheet and statement of operations) for the fiscal period
ended September 30, 1998 (the "Unaudited Financial Statements" and, together
with the Audited Financial Statements, the "Financial Statements"). The
Financial Statements have been prepared in accordance with GAAP, applied on a
consistent basis throughout the periods indicated and with each other, except
that the Unaudited Financial Statements do not contain footnotes or year-end
adjustments. The Financial Statements fairly present the financial condition,
operating results and cash flows of the Company as of the respective dates and
for the respective periods indicated in accordance with GAAP, subject in the
case of the Unaudited Financial Statements to normal year-end adjustments.

         3.12 TAXES. (a) All material Taxes (as defined below) which have come
due and are required to be paid by the Company through the date hereof have been
paid by or on behalf of the Company or adequately reserved for in accordance
with GAAP on the Financial Statements; (b) all material Tax Returns (as defined
below) required to be filed on or before the date hereof (including all
applicable extensions) by the Company have been timely filed or caused to be
filed and all such Tax Returns are accurate and complete in all material
reports; (c) with respect to all Tax Returns of the Company there is no (i)
claim or other proceeding pending against or with respect to the Company in
respect of any Tax, (ii) deficiency proposed against the Company or (iii) audit
or other examination of any Tax Return of the Company being conducted by a Tax
Authority nor has the Company been notified of any request for such an audit or
examination and (d) all provisions for income and other Tax liabilities of the
Company made in the Financial Statements have been made in accordance with GAAP
consistently applied and all liabilities for Taxes of the Company attributable
to periods prior to or ending on the Closing Date have been accrued on the
Financial Statements in accordance with GAAP. The Company has not elected
pursuant to the Code to be treated as an "S" corporation or a collapsible
corporation pursuant to Section 341(f) or Section 1362(a) of the Code. For
purposes of this Agreement, the following terms have the following meanings:
"Tax" (and, with correlative meaning, "Taxes" and "Taxable") means (i) any net
income, alternative or add-on minimum tax, gross income, gross receipts, sales,
use, ad valorem, transfer, franchise, profits, license, withholding, payroll,
employment, excise, severance, stamp, occupation, premium, property,
environmental or windfall profit tax, custom, duty or other tax, governmental
fee or other like assessment or charge of any kind whatsoever, together with any
interest or any penalty, addition to tax or additional amount imposed by any
Governmental Authority (a "Tax Authority") responsible for the imposition of any
such tax (domestic or foreign); provided, however, that Tax shall not


                                       10
<PAGE>

include any Transfer Taxes, (ii) any liability for the payment of any amounts of
the type described in (i) as a result of being a member of an affiliated,
consolidated, combined or unitary group for any Taxable period and (iii) any
liability for the payment of any amounts of the type described in (i) or (ii) as
a result of any express or implied obligation to indemnify any other person. As
used herein, "Tax Return" shall mean any return, statement, report or form
(including, without limitation,) estimated Tax Returns and reports, withholding
Tax Returns and reports and information reports and returns required to be filed
with respect to Taxes, and "Transfer Taxes" shall mean any state and local
sales, use or other transfer taxes attributable to the sale of the assets to the
Company pursuant to the Asset Purchase Agreement.

         3.13 NO MATERIAL ADVERSE CHANGE. Since September 30, 1998, other than
as provided in the Transaction Documents and except as set forth in Section 3.13
of the Company Disclosure Schedule, the Company has not:

                  (a) incurred any Indebtedness for money borrowed individually
in excess of $50,000 or in excess of $100,000 in the aggregate or otherwise
permitted any of its assets to become subject to any Lien;

                  (b) entered into any Contractual Obligations or otherwise
sold, leased, transferred or licensed any assets (other than Intellectual
Property) individually in excess of $100,000 or in excess of $200,000 in the
aggregate;

                  (c) sold, assigned, leased, licensed or transferred any
Intellectual Property (other than the license and sublicense of Intellectual
Property in the ordinary course of business);

                  (d) changed any of its methods of accounting or accounting
practices in any material respect for financial, accounting or Tax purposes; or

                  (e) agreed or committed to do any of the things described in
this Section 3.13.

         3.14 INVESTMENT COMPANY. The Company is not an "investment company"
within the meaning of the Investment Company Act of 1940, as amended.

         3.15 PRIVATE OFFERING. No form of general solicitation or general
advertising was used by the Company or its representatives in connection with
the offer or sale of the Purchased Shares or the Warrant. Assuming the truth and
accuracy of the Purchaser's representations and warranties contained herein, no
registration of the Purchased Shares, the Additional Purchased Shares or the
Warrant pursuant to the provisions of the Securities Act or any state securities
or "blue sky" laws will be required by the offer, sale or issuance of the
Purchased Shares, the Additional Purchased Shares or the Warrant.

         3.16 LABOR RELATIONS. The Company is in compliance in all material
respects with all applicable state and federal equal employment opportunity laws
and the Federal Fair Labor Standards Act.

         3.17 TITLE TO ASSETS. The Company owns and has good, valid and
marketable title to all properties and



                                       11
<PAGE>

assets that are necessary for the conduct of its business, which properties and
assets include the properties and assets reflected as owned by it on the
Financial Statements or so described in the Company Disclosure Schedule
(collectively, the "Assets").

         3.18 LIABILITIES. All direct and indirect obligations or liabilities
(the "Liabilities") of the Company which should, in accordance with GAAP, be
disclosed on the Financial Statements or in the footnotes thereto, adequately
are reflected or reserved against on such Financial Statements other than
Liabilities incurred since September 30, 1998 (i) as a result of the
transactions contemplated hereby or (ii) in the ordinary course of business.

         3.19 INTELLECTUAL PROPERTY.

                  (a) The Company is the owner of, or has the license or right
to use, sell (other than off-the shelf software which is commercially available
for retail purchase and used solely on the computers of the Company) or license
(other than off-the shelf software which is commercially available for retail
purchase and used solely on the computers of the Company), all of the
Copyrights, Patents, Trade Secrets, Trademarks, Internet Assets and Software
(collectively, "Intellectual Property") that are used, sold or licensed in
connection with its business as presently conducted free and clear of all Liens.

                  (b) Section 3.19(b) of the Company Disclosure Schedule sets
forth all of the registered Intellectual Property owned by, and filings and
applications for any of the above filed by, the Company. None of the
Intellectual Property owned by the Company listed on Section 3.19(b) of the
Company Disclosure Schedule is subject to any outstanding Order, and no action,
suit, proceeding, hearing, investigation, charge, complaint, claim or demand is
pending or, to the Company's knowledge, threatened, which challenges the
validity, enforceability, use or ownership of the item.

                  (c) Except as set forth in Section 3.19(c) of the Company
Disclosure Schedule, the use, sale or license by the Company of the Intellectual
Property currently sold or licensed by the Company to any Person or used by or
licensed to the Company does not infringe upon or otherwise violate any
Intellectual Property rights of others.

                  (d) No litigation is pending and no Claim has been made
against the Company contesting the right of the Company to sell or license to
any Person or use the Intellectual Property presently sold or licensed to such
Person or used by the Company.

         3.20 INSURANCE. The insurance policies held by or on behalf of the
Company are valid and enforceable in accordance with their terms and are in full
force and effect and cover all risks associated with the Company's business that
are customarily insured against in the industry in such amounts as are customary
in the industry.

         3.21 ENVIRONMENTAL MATTERS. The Company is in material compliance with
all applicable Environmental Laws. There is no civil, criminal or administrative
judgment, action, suit, demand, claim, hearing, notice of violation,
investigation, proceeding, notice or demand letter pending against the Company
pursuant to Environmental Laws which would reasonably be expected to result in a
fine, penalty or other obligation, cost or expense that would have a material
adverse affect on the Condition of the Company.



                                       12
<PAGE>

         3.22 BROKER'S, FINDER'S OR SIMILAR FEES. There are no brokerage
commissions, finder's fees or similar fees or commissions payable by the Company
in connection with the transactions contemplated hereby based on any agreement,
arrangement or understanding with the Company or any action taken by any such
Person.

         3.23 COMPLETE DISCLOSURE. The copies of all instruments, agreements,
other documents and written information delivered by the Company to the
Purchaser or its counsel are and will be complete in all material respects as of
the date of delivery thereof.

         3.24 BEST EFFORTS. The Company shall use its best efforts to effectuate
the transactions contemplated hereby and cause to be fulfilled the conditions to
Closing under this Agreement.

         3.25 PRIVATE PLACEMENT MEMORANDUM. The Private Placement Memorandum
does not and will not on the Closing Date contain any untrue statements of a
material fact or omit to state a material fact necessary to make the statements
therein, in light of the circumstance under which they were made, not
misleading.

                                   ARTICLE 4
                REPRESENTATIONS AND WARRANTIES OF THE PURCHASERS

                  The Purchaser hereby represents and Warrant to the Company as
follows:

         4.1 EXISTENCE AND POWER. The Purchaser is a corporation duly organized
and validly existing under the laws of the jurisdiction of its formation and has
the requisite corporate power and authority to execute, deliver and perform its
obligations under this Agreement and each of the other Transaction Documents to
which it is a party.

         4.2 AUTHORIZATION; NO CONTRAVENTION. The execution, delivery and
performance by the Purchaser of this Agreement and each of the other Transaction
Documents to which it is a party and the transactions contemplated hereby and
thereby (a) have been duly authorized by all necessary action, (b) do not
contravene the terms of such Purchaser's organizational documents or any
amendment thereof, (c) do not violate, conflict with or result in any breach or
contravention of, or the creation of any Lien under, any Contractual Obligation
of such Purchaser or any Requirement of Law applicable to such Purchaser and (d)
do not violate any Order of any Governmental Authority against or binding upon
the Purchaser.

         4.3 GOVERNMENTAL AUTHORIZATION; THIRD PARTY CONSENTS. No approval,
consent, compliance, exemption, authorization or other action by, or notice to,
or filing with any Governmental Authority or any other Person, and no lapse of a
waiting period under any Requirement of Law, is necessary or required in
connection with the execution, delivery or performance by, or enforcement
against, such Purchaser of this Agreement and each of the other Transaction
Documents to which such Purchaser is a party, or the transactions contemplated
hereby and thereby.

         4.4 BINDING EFFECT. This Agreement and each of the other Transaction
Documents to which such Purchaser is a party have been duly executed and
delivered by such Purchaser and



                                       13
<PAGE>

constitute the legal, valid and binding obligations of such Purchaser,
enforceable against it in accordance with its terms, except as enforceability
may be limited by applicable bankruptcy, insolvency, reorganization, fraudulent
conveyance or transfer, moratorium or similar laws affecting the enforcement of
creditors' rights generally or by equitable principles relating to
enforceability (regardless of whether considered in a proceeding at law or in
equity).

         4.5 PURCHASE FOR OWN ACCOUNT. The Purchased Shares, the Additional
Purchased Shares and the Warrant to be acquired by the Purchaser pursuant to
this Agreement are being or will be acquired for its own account and with no
intention of distributing or reselling such Purchased Shares, Additional
Purchased Shares, the Warrant or any part thereof in any transaction that would
be in violation of the securities laws of the United States of America or any
state, without prejudice, however, to the rights of such Purchaser at all times
to sell or otherwise dispose of all or any part of such Purchased Shares,
Additional Purchased Shares or the Warrant under an effective registration
statement under the Securities Act or under an exemption from such registration
available under the Securities Act, and subject, nevertheless, to the
disposition of such Purchaser's property being at all times within its control.
If such Purchaser should in the future decide to dispose of any of such
Purchased Shares, Additional Purchased Shares or the Warrant such Purchaser
understands and agrees that it may do so only in compliance with the Securities
Act and applicable state securities laws, as then in effect. Such Purchaser
agrees to the imprinting, so long as required by law, of a legend on
certificates representing all of its Purchased Shares and Additional Purchased
Shares and shares of Common Stock issuable upon exercise of the Warrant, as the
case may be, to the following effect:

                  THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), OR THE
SECURITIES LAWS OF ANY JURISDICTION OF THE UNITED STATES. THE SECURITIES MAY NOT
BE TRANSFERRED EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH
ACT AND UNDER THE APPLICABLE STATE SECURITIES LAWS OR PURSUANT TO AN OPINION OF
COUNSEL TO THE COMPANY OR OTHER COUNSEL REASONABLY SATISFACTORY TO THE COMPANY,
IF REQUESTED BY THE COMPANY, THAT THERE IS AN APPLICABLE EXEMPTION FROM THE
REGISTRATION REQUIREMENTS OF SUCH ACT AND SUCH LAWS.

         4.6 RESTRICTED SECURITIES. Such Purchaser understands that the
Purchased Shares, the Additional Purchased Shares and the Warrant will not be
registered at the time of their issuance under the Securities Act for the reason
that the sale provided for in this Agreement is exempt pursuant to Section 4(2)
of the Securities Act and that the reliance of the Company on such exemption is
predicated in part on such Purchaser's representations set forth herein. The
Purchaser represents that it is experienced in evaluating companies such as the
Company, has such knowledge and experience in financial and business matters as
to be capable of evaluating the merits and risks of its investment and has the
ability to suffer the total loss of its investment. The Purchaser further
represents that it has had the opportunity to ask questions of and receive
answers from the Company concerning the terms and conditions of the offering and
to obtain additional information to such Purchaser's satisfaction and is an
"accredited investor" as defined in Rule 501 of Regulation D promulgated under
the Securities Act. The Purchaser also



                                       14
<PAGE>

acknowledges that the Company makes no representations or warranties other than
those set forth in this Agreement and the Asset Purchase Agreement.

         4.7 BROKER'S, FINDER'S OR SIMILAR FEES. There are no brokerage
commissions, finder's fees or similar fees or commissions payable by the
Purchaser in connection with the transactions contemplated hereby based on any
agreement, arrangement or understanding with the Purchaser or any action taken
by the Purchaser.

                                   ARTICLE 5
             CONDITIONS TO THE OBLIGATION OF THE PURCHASER TO CLOSE

                  The obligation of the Purchaser to purchase the Purchased
Shares, the Additional Purchased Shares and the Warrant pursuant to this
Agreement, to execute and deliver the Transaction Documents and to perform any
obligations hereunder or thereunder shall be subject to the satisfaction as
determined by, or waiver by, the Purchaser of the following conditions on or
before the Closing Date.

         5.1 REPRESENTATIONS AND COVENANTS. The representations and warranties
of the Company contained in this Agreement shall be true in all material
respects (except for any such representations and warranties which are qualified
by their terms by a reference to materiality or material adverse effect, which
representations and warranties as so qualified shall be true and correct in all
respects) on and as of the Closing Date with the same force and effect as though
made on and as of the Closing Date. The Company shall have performed and
complied in all material respects with all covenants and agreements required by
this Agreement to be performed or complied with by the Company on or prior to
the Closing Date.

         5.2 SECRETARY'S CERTIFICATE. The Purchaser shall have received a
certificate from the Company, in form and substance satisfactory to the
Purchaser, dated the Closing Date and signed by the Secretary or an Assistant
Secretary of the Company, certifying that the attached copies of resolutions of
the Board of Directors approving this Agreement and each of the other
Transaction Documents, as necessary, to which the Company is a party and the
transactions contemplated hereby and thereby, are all true, complete and correct
and remain unamended and in full force and effect.

         5.3 DOCUMENTS. The Purchaser shall have received true, complete and
correct copies of such documents and other materials as it reasonably may
request in connection with or relating to the purchase and sale of the Purchased
Shares and the Warrant and the transactions contemplated hereby.

         5.4 WARRANT. The Company shall have duly executed and delivered the
Warrant.

         5.5 PURCHASED SHARES. The Company shall be prepared to deliver to the
Purchaser certificates in definitive form representing the Purchased Shares,
registered in the name of such Purchaser.



                                       15
<PAGE>

         5.6 CONSENTS AND APPROVALS. All consents, exemptions, authorizations or
other actions by, or notices to, or filings with Governmental Authorities and
other Persons in respect of all Requirements of Law and with respect to those
Contractual Obligations of the Company required to be obtained prior to the
Closing Date shall have been obtained and be in full force and effect, and the
Purchaser shall have been furnished with appropriate evidence thereof, as
requested.

         5.7 SECURITIES EXEMPTION. The offer and sale of the Purchased Shares,
the Additional Purchased Shares and the Warrant shall be exempt from the
registration requirements of the Securities Act and shall comply with any
Requirements of Law and the registration and/or qualification requirements of
all other applicable state securities laws and Canadian federal or provincial
securities laws.

         5.8 DUE DILIGENCE REVIEW. The Purchaser shall have completed and
satisfied itself with respect to its due diligence review of the Company and the
transactions contemplated by the Transaction Documents including all matters
disclosed by the Company herein and therein to its sole satisfaction.

         5.9 ADDITIONAL PRIVATE PLACEMENT CLOSING. The Company shall have issued
and received payment for not less than an additional 2,000,000 shares of Common
Stock at a price of $1.00 per share pursuant to the terms of the Private
Placement Memorandum.

         5.10 PRIVATE PLACEMENT MEMORANDUM

         The Company's shall have delivered to the Purchaser a copy of any
supplement to the Private Placement Memorandum and the Purchaser shall be
satisfied with such supplement in its sole discretion.

                                   ARTICLE 6
              CONDITIONS TO THE OBLIGATION OF THE COMPANY TO CLOSE

                  The obligation of the Company to issue and sell the Purchased
Shares and the Warrant pursuant to this Agreement, to execute and deliver the
Transaction Documents and to perform any obligations hereunder or thereunder
shall be subject to the satisfaction as determined by, or waiver by, the Company
of the following conditions on or before the Closing Date:

         6.1 REPRESENTATIONS AND COVENANTS. The representations and warranties
of the Purchaser contained in this Agreement shall be true in all material
respects (except for any such representations and warranties which are qualified
by a reference to materiality or material adverse effect, which representations
and warranties as so qualified shall be true and correct in all respects) on and
as of the Closing Date with the same force and effect as though made on and as
of the Closing Date. The Purchaser shall have performed and complied with all
covenants and agreements required by this Agreement to be performed or complied
with by it on or prior to the Closing Date.



                                       16
<PAGE>

         6.2 SECRETARY'S CERTIFICATE. The Company shall have received a
certificate from the Purchaser, in form and substance satisfactory to the
Company, dated the Closing date and signed by the Secretary or an Assistant
Secretary of the Purchaser, certifying that the attached copies of resolutions
of the Board of Directors of the Purchaser approving this Agreement and each of
the other Transaction Documents, as necessary, to which the Purchaser is a party
and the transactions contemplated hereby or thereby, are all true, complete and
correct and remain unamended and in full force and effect.

         6.3 DOCUMENTS. The Company shall have received the complete and collect
copies of such documents and other materials as it reasonably may request in
connection with or relating to the Transaction Documents and the transactions
contemplated hereby.

         6.4 ASSET PURCHASE AGREEMENT. The Purchaser shall have duly executed
and delivered the Asset Purchase Agreement.

         6.5 CONSENTS AND APPROVALS. All consents, exemptions, authorizations or
other actions by, or notices to, or filings with Governmental Authorities and
other Persons in respect of all Requirements of Law and with respect to any
Contractual Obligations of the Purchaser required to be obtained prior to the
Closing Date shall have been obtained and be in full force and effect, and the
Company shall have been furnished with appropriate evidence thereof, as
requested.

         6.6 DUE DILIGENCE REVIEW. The Company shall have completed, and
satisfied itself with respect to, its due diligence review of Purchaser and the
transactions contemplated by the Transaction Documents, including all matters
disclosed by the Purchaser herein and therein, to its sole satisfaction.

                                   ARTICLE 7
                              AFFIRMATIVE COVENANTS

         7.1 FINANCIAL STATEMENTS AND OTHER INFORMATION. Until the date as of
which the Company shall have completed the initial public offering of any of its
equity securities pursuant to an effective registration statement filed under
the Securities Act, the Company shall deliver to the Purchaser, in form and
substance satisfactory to such Purchaser:

                  (a) As soon as available, but not later than 60 days, if
available, and in any event not later than 75 days after the end of each fiscal
year of the Company, a copy of the audited consolidated balance sheet of the
Company as of the end of such fiscal year and the related statements of
operations and cash flows for such fiscal year, setting forth in each case in
comparative form the figures for the previous year all in reasonable detail, and
accompanied by the opinion of a nationally recognized independent certified
public accounting firm, which report shall state without qualification that such
consolidated financial statements present fairly the consolidated financial
condition as of such date and results of operations and cash flows for the
periods indicated in conformity with GAAP applied on a consistent basis; and



                                       17
<PAGE>

                  (b) Commencing with the fiscal period ending on March 31,
1999, as soon as available, but in any event not later than 45 days after the
end of each of the first three fiscal quarters of each fiscal year, the
consolidated unaudited balance sheet of the Company, and the related statements
of operations and cash flows for such quarter and for the period commencing on
the first day of the fiscal year and ending on the last day of such quarter, all
certified by an appropriate officer of the Company as presenting fairly the
consolidated financial condition as of such date and results of operations and
cash flows for the periods indicated in conformity with GAAP applied on a
consistent basis, subject to normal year-end adjustments and the absence of
footnotes required by GAAP.

         7.2 RESERVATION OF COMMON STOCK. From and after the Closing Date, the
Company shall at all times reserve and keep available out of its authorized
shares of Common Stock, solely for the purpose of issuance or delivery of the
Additional Purchased Shares and upon exercise of the Warrant, the maximum number
of shares of Common Stock that may be issuable or deliverable upon such
exercise.

         7.3 BOOKS AND RECORDS. The Company shall keep proper books of record
and account, in accordance with GAAP consistently applied.

         7.4 BOARD OF DIRECTORS. From and after the Closing Date and until such
time as the Purchaser controls less than 17% of the voting power of the Company,
the Purchaser shall be entitled to appoint one member of the Board of Directors
and the Company shall take such action necessary to ensure such appointment.
Until the date which is two years after the date of the Initial Public Offering,
the Company agrees not to reduce the size of the Board of Directors below six
without Purchaser's prior written consent.

         7.5 ISSUANCE OF STOCK. As of the date which is 18 months after the
Closing Date, if the Company has not completed the initial public offering of
any of its equity securities pursuant to an effective registration statement
filed under the Act, including, including without limitation, in connection with
said sale, conveyance or disposal of all or substantially all of its property,
or business or any merger or consolidation with any other entity, in a
transaction or series of related transactions (the "Initial Public Offering"),
the Company shall issue Purchaser an additional 1,607,000 shares of Common Stock
(the "Additional Purchased Shares"), for no additional consideration, subject to
the execution of standard investment representations by Purchaser as set forth
in Section 4 hereof.

         7.6 MARKET STAND-OFF. Subject to Section 7.7 hereof, Purchaser hereby
agrees that, during the period commencing on the Closing Date and terminating on
the date which is three years thereafter, it shall not, directly or indirectly,
sell, offer to sell, contract to sell (including, without limitation, any short
sale), grant any option to purchase or otherwise transfer or dispose of (other
than to donees who agree to be similarly bound) ("Sell") any securities of the
Company held by it at any time during such period; PROVIDED, HOWEVER, that: (i)
Purchaser may Sell up to 2% of the securities of the Company held by it per
fiscal quarter of the Company, on a cumulative basis, beginning in the fiscal
quarter ending March 31, 2000 and (ii) Purchaser may, at all times, Sell
securities of the Company owned by it pursuant to the provisions of Rule 144
promulgated under the Act.



                                       18
<PAGE>

         In order to enforce the foregoing covenant, the Company may impose
stop-transfer instructions with respect to the securities of the Company owned
by Purchaser until the end of such period.

         7.7 REGISTRATION. Subject to and subordinate to any registration rights
granted to any investors pursuant to the Private Placement Memorandum, if the
Company in its discretion at any time proposes to register any of its securities
under the Act for sale to the public, whether for its own account or for the
account of other security holders or both (except with respect to registration
statements on Forms S-4 or S-8), each such time it will give written notice to
such effect to the Purchaser at least 30 days prior to such filing. Upon the
written request of the Purchaser, received by the Company within 30 days after
the giving of any such notice by the Company, to register any of its Common
Stock, the Company will cause the Common Stock as to which registration shall
have been so requested to be included in the securities to be covered by the
registration statement proposed to be filed by the Company, all to the extent
requisite to permit the sale or other disposition by the Purchaser of such
Common Stock so registered. Notwithstanding the foregoing, in the event that any
registration pursuant to this Section 7.7 shall be, in whole or in part, an
underwritten public offering of Common Stock, the number of shares of Common
Stock of the Purchaser to be included in such an underwriting may be reduced if
and to the extent that the managing underwriter shall be of the good faith
opinion that such inclusion would reduce the number of shares to be offered by
the Company. Notwithstanding the foregoing provisions, the Company may withdraw
any registration statement referred to in this Section 7.7 without thereby
incurring any liability to the Purchaser.

         7.8 PREEMPTIVE RIGHTS.

                  (a) Prior to the second anniversary of the Closing Date, the
Company shall not, without the Purchaser's prior written consent, sell any
securities or any rights to acquire any securities of the Company (except
pursuant to any existing options, warrants and rights and option plans described
in the Private Placement Memorandum) at a price less than $1.00 per share.

                  (b) Subject to Section 7.8(a), the Company shall, until such
time as there is an Initial Public Offering, prior to any issuance by the
Company of any of its securities, offer to the Purchaser, by written notice (the
"Preemptive Right Notice"), the right to purchase the Purchaser's Pro Rata
Portion (as defined below) for cash at an amount equal to the price or other
consideration for which such securities are to be issued; PROVIDED, that the
preemptive rights set forth in this Section 7.8 shall not apply to securities
issued pursuant to the exception described in the parenthetical clause in
Section 7.8(a) and, PROVIDED FURTHER, that such preemptive rights shall not
apply to securities issued by the Company in connection with or in consideration
of (i) any acquisition by the Company of another corporation or entity by
consolidation, merger, purchase of all or substantially all of the assets or
other business combination in which the Company is the surviving entity,
provided such issuance is approved by a majority of the Board of Directors of
the Company or (ii) any equipment or real property lease, loan, credit line,
guaranty of indebtedness or acquisition of assets (other than cash, but
including, without limitation, intellectual property or other intangible
assets).

                  (c) The Preemptive Right Notice shall describe the securities
that the Company proposes to issue and specify the number, price and payment
terms. The Purchaser



                                       19
<PAGE>

shall be entitled to purchase its pro rata portion of such securities ("Pro Rata
Portion"), which shall be the number of securities as is equal to the full
number of securities offered by the Company multiplied by a fraction, the
numerator of which shall be the number of shares of Common Stock held by the
Purchaser as of the date of the Preemptive Right Notice and the denominator of
which shall be the aggregate number of shares of Common Stock issued and
outstanding. The Purchaser may accept the Company's offer as to all or part of
its Pro Rata Portion, by written notice thereof given to the Company given
within 30 days after receipt of the Preemptive Right Notice, in which event the
Company shall promptly sell and the Purchaser shall buy, upon the terms
specified, the number of securities agreed to be purchased by the Purchaser.

                  (d) The Company shall be free at any time prior to 90 days
after the date of the Preemptive Right Notice to offer and sell to any third
party or parties the number of such securities not purchased by the Purchaser at
a price and on payment terms no less favorable to the Company than those
specified in the Preemptive Right Notice. However, if such third party sale or
sales are not consummated within such 90 day period, the Company shall not sell
such securities as shall not have been purchased within such period without
again complying with this Section 7.8.

                                   ARTICLE 8
                                  MISCELLANEOUS

         8.1 SURVIVAL OF REPRESENTATIONS AND WARRANTIES. All of the
representations and warranties made herein shall survive the execution and
delivery of this Agreement until the date which is one year after the date
hereof; PROVIDED, HOWEVER, that such representations and warranties shall not
survive the termination of this Agreement pursuant to Article 9 hereof.

         8.2 NOTICES. All notices, demands and other communications provided for
or permitted hereunder shall be made in writing and shall be by registered or
certified first-class mail, return receipt requested, telecopier, courier
service or personal delivery:

                  (a)      if to the Company:

                           GraphOn Corporation
                           150 Harrison Avenue
                           Campbell, CA  96008
                           Telecopy:  (408) 370-5047
                           Attention:  Walt Keller

                           with a copy to:

                           Brobeck, Phleger & Harrison LLP
                           Two Embarcadero Place
                           2200 Geng Road
                           Palo Alto, CA  94303
                           Telecopy:  (650) 496-2722



                                       20
<PAGE>

                           Attention:  Thomas A. Bevilacqua

                           if to Purchaser:

                           Corel Corporation
                           Corporate Headquarters
                           1600 Carling Avenue
                           Ottawa, Ontario K1Z8R7
                           Canada
                           Telecopy:  (613) 725-2691
                           Attention:       President

                           with a copy to:

                           Legal Department
                           Telecopy:  (613) 725-2691
                           Attention:       Eric J. Smith

                  All such notices and communications shall be deemed to have
been duly given when delivered by hand, if personally delivered; when delivered
by courier, if delivered by commercial courier service; and five Business Days
after being deposited in the mail, postage prepaid, if mailed; and when receipt
is mechanically acknowledged, if telecopied.

         8.3 SUCCESSORS AND ASSIGNS; THIRD PARTY BENEFICIARIES. This Agreement
shall inure to the benefit of and be binding upon the successors and permitted
assigns of the parties hereto. Neither the Company or the Purchaser may assign
any of its rights under this Agreement without the written consent of the other
party hereto. No Person other than the parties hereto and their successors and
permitted assigns is intended to be a beneficiary of this Agreement.

         8.4 AMENDMENT AND WAIVER.

                  (a) No failure or delay on the part of the Company or the
Purchaser in exercising any right, power or remedy hereunder shall operate as a
waiver thereof, nor shall any single or partial exercise of any such right,
power or remedy preclude any other or further exercise thereof or the exercise
of any other right, power or remedy. The remedies provided for herein are
cumulative and are not exclusive of any remedies that may be available to the
Company or the Purchaser at law, in equity or otherwise.

                  (b) Any amendment, supplement or modification of or to any
provision of this Agreement, any waiver of any provision of this Agreement, and
any consent to any departure by the Company or the Purchaser from the terms of
any provision of this Agreement shall be effective only if it is made or given
in writing and signed by the Company and the Purchaser.

         8.5 COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.



                                       21
<PAGE>

         8.6 HEADINGS. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

         8.7 GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT REGARD TO THE
PRINCIPLES OF CONFLICTS OF LAW OF ANY JURISDICTION.

         8.8 SEVERABILITY. If any one or more of the provisions contained
herein, or the application thereof in any circumstance, is held invalid, illegal
or unenforceable in any respect for any reason, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions hereof shall not be in any way impaired, unless the provisions held
invalid, illegal or unenforceable shall substantially impair the benefits of the
remaining provisions hereof.

         8.9 ENTIRE AGREEMENT. This Agreement, together with the Company
Disclosure Schedule, exhibits and schedules hereto and the other Transaction
Documents is intended by the parties as a final expression of their agreement
and intended to be a complete and exclusive statement of the agreement and
understanding of the parties hereto in respect of the subject matter contained
herein and therein. There are no restrictions, promises, warranties or
undertakings, other than those set forth or referred to herein or therein. This
Agreement, together with the exhibits hereto and the other Transaction
Documents, supersede all prior agreements and understandings between the parties
with respect to such subject matter.

         8.10 FURTHER ASSURANCES. Each of the parties shall execute such
documents and perform such further acts (including, without limitation,
obtaining any consents, exemptions, authorizations or other actions by, or
giving any notices to, or making any filings with any Governmental Authority or
any other Person, and otherwise fulfilling, or causing the fulfillment of, the
conditions to Closing set forth in Articles 5 and 6 hereof) as may reasonably be
required or desirable to carry out or to perform the provisions of this
Agreement and to consummate and make effective as promptly as possible the
transactions contemplated by this Agreement.

         8.11 ARBITRATION. The parties agree that they shall use all reasonable
efforts to amicably settle disagreements arising from or in connection with this
Agreement. To this effect, following notice of any party to the others of a
disagreement (which shall include any failure to agree upon a matter to be
agreed upon) the parties shall consult and negotiate with one another in good
faith an understanding to reach a just and equitable solution. If those attempts
fail after a period of 15 Business Days from the time the parties have been
notified of the disagreement, then either party may refer the matter to
arbitration. Notwithstanding the foregoing, the parties shall be entitled to
seek injunctive relief or other equitable remedies form any court of competent
jurisdiction. Except where clearly prevented by the issue in dispute, the
parties agree to continue performing their respective obligations under this
Agreement and the other related agreements entered into in connection with this
Agreement while the dispute is being resolved unless and until such obligations
are terminated or expire in accordance with the provisions hereof.



                                       22
<PAGE>

                                   ARTICLE 9
                            TERMINATION OF AGREEMENT

         9.1 TERMINATION. This Agreement may be terminated prior to the Closing
as follows:

                  (a) at any time on or prior to the Closing Date, by mutual
written consent of the Company and the Purchaser;

                  (b) at the election of the Company or the Purchaser by written
notice to the other parties hereto after 5:00 p.m., California time, on December
31, 1998, if the Closing shall not have occurred, unless such date is extended
by the mutual written consent of the Company and the Purchaser;

                  (c) at the election of the Company, if there has been a
material breach of any representation, warranty, covenant or agreement on the
part of the Purchaser contained in this Agreement, which breach has not been
cured within 15 Business Days of notice to the Purchaser of such breach; or

                  (d) at the election of the Purchaser, if there has been a
material breach of any representation, warranty, covenant or agreement on the
part of the Company contained in this Agreement, which breach has not been cured
within 15 Business Days notice to the Company of such breach.

                  If this Agreement so terminates, it shall become null and void
and have no further force or effect, except as provided in Section 9.2.

         9.2 SURVIVAL. If this Agreement is terminated and the transactions
contemplated hereby are not consummated as described above, this Agreement shall
become void and of no further force and effect; except for the provisions of
Article 1 and this Section 9.2; PROVIDED that (a) none of the parties hereto
shall have any liability in respect of a termination of this Agreement pursuant
to Section 9.1(a) or 9.1(b) and (b) nothing shall relieve any of the parties
from liability for actual damages resulting from a termination of this Agreement
pursuant to Section 9.1(c) or 9.1(d); and PROVIDED, FURTHER, that none of the
parties hereto shall have any liability for speculative, indirect, unforeseeable
or consequential damages resulting from any legal action relating to this
Agreement or any termination of this Agreement.

                                   ARTICLE 10
                                 INDEMNIFICATION

         10.1 INDEMNIFICATION BY PURCHASER.

                  (a) From and after Closing during the Indemnification Period,
Purchaser shall hold harmless, defend, indemnify and pay for the defense of each
of the Company Indemnitees from and against, and shall compensate and reimburse
each of the Company Indemnitees for, any Damages which are suffered or incurred
by any of the Company Indemnitees or to which any of the Company Indemnitees may
otherwise become subject (regardless of whether or not such



                                       23
<PAGE>

Damages relate to any third-party claim) and which arise from or as a result of,
or are connected with:

                           (i) any inaccuracy in or breach of any representation
or warranty set forth in Article 4 hereunder or in any certificate delivered by
Purchaser in connection with this Agreement;

                           (ii) any breach of any covenant or obligation of
Purchaser hereunder;

                           (iii) any Legal Proceeding resulting from the items
referred to in clause (i) or (ii) above (including any Legal Proceeding
commenced by any Company Indemnitee for the purpose of enforcing any of its
rights under this Section 10.1 if such Company Indemnitee is the prevailing
party in any such Legal Proceeding);

                           (iv) any third party claim commenced after the
Closing Date which alleges (i) that the Purchased Software (as defined in the
Asset Purchase Agreement), Trademarks (as defined in the Asset Purchase
Agreement), or any other right or property acquired by Purchaser hereunder,
infringe any U.S. or Canadian copyright, trademark, trade secret right, patent
right that has been issued as of the date hereof, or other proprietary right.
The foregoing indemnification does not extend to any claim arising out of a
modification by Purchaser to the Purchased Software to the extent such claim
would not have arisen had such modification not been made or the combination of
any portion of the Purchased Software with any other software or hardware
product.

                  THE FOREGOING STATES THE ENTIRE LIABILITY AND OBLIGATIONS OF
                  PURCHASER AND THE EXCLUSIVE REMEDY OF PURCHASER WITH RESPECT
                  TO ANY ALLEGED INTELLECTUAL PROPERTY INFRINGEMENT BY THE
                  PURCHASED SOFTWARE.


                  (b) The obligations of indemnification by the Purchaser
pursuant to Section 10.1(a) are:

                           (i) subject to the limitations referred to in Section
8.1 with respect to the survival of the representations and warranties by the
Purchaser;

                           (ii) subject to the provisions of Sections 10.3,
10.4, 10.5 and 10.6; and

                           (iii) subject to the limitations referred to in
Section 11.2.

         10.2 INDEMNIFICATION BY COMPANY.

                  (a) From and after Closing during the Indemnification Period,
Company shall hold harmless, defend, indemnify and pay for the defense of each
of the Purchaser Indemnitees from and against, and shall compensate and
reimburse each of the Purchaser Indemnitees for, any Damages which are suffered
or incurred by any of the Purchaser Indemnitees or to which any of the Purchaser
Indemnitees may otherwise become subject (regardless of whether or not



                                       24
<PAGE>

such Damages relate to any third-party claim) and which arise from or as a
result of, or are connected with:

                           (i) any inaccuracy in or breach of any representation
or warranty set forth in Article 3 hereunder or in any certificate delivered by
Company in connection with this Agreement;

                           (ii) any breach of any covenant or obligation of
Company hereunder;

                           (iii) any Legal Proceeding resulting from the items
referred to in clause (i) or (ii) above (including any Legal Proceeding
commenced by any Purchaser Indemnitee for the purpose of enforcing any of its
rights under this Section 10.2 if such Purchaser Indemnitee is the prevailing
party in any such Legal Proceeding); or

                           (iv) any third party claim after Closing alleging
that any product developed, marketed or distributed by or on behalf of Company,
excluding the unmodified Purchased Software, infringes any copyright,
trade-mark, confidentiality right, patent or other intellectual property right
of any third party.

                  (b) The obligations of indemnification by the Company pursuant
to Section 10.2(a) are:

                           (i) subject to the limitations referred to in Section
8.1 with respect to the survival of the representations and warranties by the
Company;

                           (ii) subject to the provisions of Sections 10.3,
10.4, 10.5 and 10.6; and

                           (iii) subject to the limitations referred to in
Section 11.1.

         10.3 NOTICE OF CLAIM. If a party entitled to indemnification hereunder
(an "Indemnified Party") becomes aware of a claim or Legal Proceeding in respect
of which indemnification is provided for pursuant to either of Section 10.1 or
10.2, as the case may be, the Indemnified Party shall promptly give written
notice of the claim or Legal Proceeding to the party obligated to indemnify the
Indemnified Party (the "Indemnifying Party"). Such notice shall specify whether
the claim or Legal Proceeding arises as a result of a claim by a Person against
the Indemnified Party (a "Third Party Claim") or whether the claim does not so
arise (a "Direct Claim"), and shall also specify with reasonable particularity
(to the extent that the information is available):

                           (a) the factual basis for the claim; and

                           (b) the amount of the claim, if known, the basis
thereof and documentation supporting the same.


If, through the fault of the Indemnified Party, the Indemnifying Party does not
receive notice of any claim or Legal Proceeding in time effectively to contest
the determination of any liability susceptible of being contested, then the
liability of the Indemnifying Party to the Indemnified Party under this Article
shall be



                                       25
<PAGE>

reduced by the amount of any losses incurred by the Indemnifying Party resulting
from the Indemnified Party's failure to give such notice on a timely basis.

         10.4 DIRECT CLAIMS. In the case of a Direct Claim, the Indemnifying
Party shall have 30 days from receipt of notice of the claim within which to
make such investigation of the claim as the Indemnifying Party considers
necessary or desirable. For the purpose of such investigation, the Indemnified
Party shall make available to the Indemnifying Party the information relied upon
by the Indemnified Party to substantiate the claim, together with all such other
information as the Indemnifying Party may reasonably request, PROVIDED, HOWEVER,
that the Indemnifying Party agrees at all times to maintain the confidentiality
of such information. If both parties agree at or before the expiration of such
30 day period (or any mutually agreed upon extension thereof) to the validity
and amount of such claim, the Indemnifying Party shall immediately pay to the
Indemnified Party the full agreed upon amount of the claim, failing which the
matter shall be referred to binding arbitration in accordance with Section 8.11.

         10.5 THIRD PARTY CLAIMS. In the case of a Third Party Claim, the
Indemnifying Party shall have the right, at its expense, to participate in or
assume control of the negotiation, settlement or defense of the claim or Legal
Proceeding and, in such event, the Indemnifying Party shall reimburse the
Indemnified Party for all of the Indemnified Party's out-of-pocket expenses as a
result of such participation or assumption. If the Indemnifying Party elects to
assume such control, the Indemnified Party shall have the right to participate
in the negotiation, settlement or defense of such Third Party Claim and to
retain counsel to act on its behalf, provided that the fees and disbursements of
such counsel shall be paid by the Indemnified Party unless the Indemnifying
Party consents to the retention of such counsel at its expense. If the
Indemnifying Party, having elected to assume such control, thereafter fails to
defend the Third Party Claim within a reasonable time, the Indemnified Party
shall be entitled to assume such control and the Indemnifying Party shall be
bound by the results obtained by the Indemnified Party with respect to such
Third Party Claim and shall solely bear all reasonable expenses associated with
the defense of such Third Party Claim. If either party makes a payment,
resulting in settlement of the Third Party Claim, which precludes a final
determination of the merits of the Third Party Claim and the Indemnified Party
and the Indemnifying Party are unable to agree whether such payment was
unreasonable in the circumstances having regard to the amount and merits of the
Third Party Claim, then such dispute shall be referred to and finally settled by
binding arbitration in accordance with Section 8.11.

         10.6 SETTLEMENT OF THIRD PARTY CLAIMS. If the Indemnifying Party fails
to assume control of the defense of any Third Party Claim, the Indemnified Party
shall have the exclusive right to contest, settle or pay the amount claimed and
the Indemnifying Party shall be bound by the results obtained by the Indemnified
Party with respect to such Third Party Claim and shall solely bear all
reasonable expenses associated with the defense of such Third Party Claim.
Whether or not the Indemnifying Party assumes control of the negotiation,
settlement or defense of any Third Party Claim, neither party shall settle any
Third Party Claim without the written consent of the other party, which consent
shall not be unreasonably withheld or delayed; PROVIDED, HOWEVER, that the
liability of such party shall be limited to the proposed settlement amount if
any such consent is not obtained for any reason within a reasonable time after
the request therefor. If the exercise by Company of any of the rights granted to
it pursuant to this Agreement is enjoined or, in Purchaser's reasonable opinion,
is likely to be enjoined due to the



                                       26
<PAGE>

type of infringement or misappropriation specified in Section 10.1 above,
without prejudice to the rights and remedies of Company, Purchaser shall upon
request of Company and at Company's expense, provide reasonable cooperation to
Company and its counsel with all necessary technical information related to the
design regarding defense or other resolution of the claim.

                                   ARTICLE 11

                          LIMITATION ON WARRANTY CLAIMS

         11.1 LIMITATION ON WARRANTY CLAIM(S) BY PURCHASER.


         (a) The Purchaser shall not be entitled to make a Warranty Claim if the
Purchaser has been advised in writing or otherwise has actual knowledge prior to
Closing of the inaccuracy, non-performance, non-fulfilment or breach which is
the basis for such Warranty Claim and the Purchaser completes the transactions
hereunder notwithstanding such inaccuracy, non-performance, non-fulfilment or
breach.

         (b) The amount of any damages which may be claimed by the Purchaser
pursuant to a Warranty Claim shall be calculated to be the cost or loss to the
Purchaser after giving effect to:

                           (i)      any insurance proceeds available to the
                                    Purchaser in relation to the matter which is
                                    the subject of the Warranty Claim, and

                           (ii)     the value of any related, determinable tax
                                    benefits realized, or to be realized within
                                    a two year period following the date of
                                    incurring such cost or loss, by the
                                    Purchaser in relation to the matter which is
                                    the subject of the Warranty Claim.

         (c) The Purchaser shall not be entitled to make any Warranty Claim
until such time as the total amount of all Damages (including the Damages
directly arising from such inaccuracy or breach and all other Damages arising
from any other inaccuracies in or breaches of any representations, warranties,
covenants or obligations) that have been directly suffered or incurred by the
Purchaser exceeds $25,000. Notwithstanding the foregoing, in the event the total
amount of all such Damages exceed $25,000, the Company's liability shall include
the initial $25,000 amount. Except in the event of a breach by the Company of
the confidentially provisions set out in Section 8.2 of the Asset Purchase
Agreement (to which the limitation in this section 11.1 shall not apply), the
maximum aggregate liability of the Company in respect of all Warranty Claims by
the Purchaser will be limited to $760,000.

         11.2 LIMITATION ON WARRANTY CLAIM(S) BY COMPANY

         (a) The Company shall not be entitled to make a Warranty Claim if the
Company has been advised in writing or otherwise has actual knowledge prior to
Closing of the inaccuracy, non-performance, non-fulfilment or breach which is
the basis for such Warranty Claim and the Company completes the transactions
hereunder notwithstanding such inaccuracy, non-performance, non-fulfilment or
breach.



                                       27
<PAGE>

         (b) The amount of any damages which may be claimed by the Company
pursuant to a Warranty Claim shall be calculated to be the cost or loss to the
Company after giving effect to:

                           (i)      any insurance proceeds available to the
                                    Company in relation to the matter which is
                                    the subject of the Warranty Claim, and

                           (ii)     the value of any related, determinable tax
                                    benefits realized, or to be realized within
                                    a two year period following the date of
                                    incurring such cost or loss, by the Company
                                    in relation to the matter which is the
                                    subject of the Warranty Claim.

         (c) The Company shall not be entitled to make any Warranty Claim until
such time as the total amount of all Damages (including the Damages directly
arising from such inaccuracy or breach and all other Damages arising from any
other inaccuracies in or breaches of any representations, warranties, covenants
or obligations) that have been directly suffered or incurred by the Company
exceeds $25,000. Notwithstanding the foregoing, in the event the total amount of
all such Damages exceed $25,000, Purchaser's liability shall include the initial
$25,000 amount. Except in the event of a breach by Purchaser of the
confidentially provisions set out in Section 8.2 of the Asset Purchase Agreement
(to which the limitation in this section 11.2 shall not apply), the maximum
aggregate liability of the Purchaser in respect of all Warranty Claims by the
Company will be limited to $760,000.



                                       28
<PAGE>


                  IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be executed and delivered by their respective officers hereunto
duly authorized on the date first above written.


                                     GRAPHON CORPORATION


                                     By:
                                        ----------------------------------------
                                     Name:  Walt Keller
                                     Title: President


                                     COREL CORPORATION


                                     By:
                                        ----------------------------------------
                                     Name:
                                     Title:


                                     By:
                                        ----------------------------------------
                                     Name:
                                     Title:


                                     COREL CORPORATION LIMITED


                                     By:
                                        ----------------------------------------
                                     Name:
                                     Title:


                                     COREL, INC.


                                     By:
                                        ----------------------------------------
                                     Name:
                                     Title:



              [Signature Page to Securities Purchase Agreement]


<PAGE>



                                    EXHIBIT A

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED, (THE "ACT"), AND MAY NOT BE OFFERED, SOLD OR OTHERWISE
TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION STATEMENT
IN EFFECT WITH RESPECT TO SUCH SECURITIES OR DELIVERY OF AN OPINION OF COUNSEL
IN FORM AND SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES THAT SUCH
OFFER, SALE, TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE WITH THE ACT.


No. W-1



                        WARRANT TO PURCHASE COMMON STOCK

                                       OF

                       GRAPHON CORPORATION (THE "COMPANY")


                  This warrant (the "Warrant") certifies that, in consideration
of that certain Securities Purchase Agreement, dated December 18, 1998, by and
between the Company and Corel Corporation (including its assignees, the
"Holder") and the transactions contemplated thereby, and for other good and
valuable consideration, the receipt of which hereby is acknowledged, the Holder
is entitled, upon surrender of this Warrant at the principal office of the
Company (or at such other place as the Company shall notify Holder in writing),
to purchase up to 388,650 shares of the Common Stock of the Company (the "Common
Stock") at $1.00 per share (such price, as adjusted from time to time, is herein
referred to as the "Exercise Price"). The shares of Common Stock issuable
pursuant to this Warrant (the "Warrant Shares") shall be subject to adjustment
pursuant to Section 8 hereof.

                  1. EXERCISE PERIOD. This Warrant is exercisable, in whole or
in part, commencing upon the date hereof and shall remain so exercisable for a
period of 5 years following such date, subject to earlier termination as set
forth in Section 8(b) hereof.

                  2. EXERCISE OF WARRANT.

                           (a) The purchase rights represented by this Warrant
are exercisable by the Holder in whole or in part, at any time or from time to
time, during the exercise period hereof as described in Section 1 above. Such
exercise shall be effected by the surrender of this Warrant and the Notice of
Exercise annexed hereto duly completed and executed on behalf of the Holder, at
the office of the Company, upon payment of the Exercise Price in cash or by
check.



                                      A-1
<PAGE>

                           (b) This Warrant shall be deemed to have been
exercised immediately prior to the close of business on the date of its
surrender for exercise as provided above, and the person entitled to receive the
Warrant Shares issuable upon such exercise shall be treated for all purposes as
the holder of record of such shares as of the close of business on such date. As
promptly as practicable on or after such date, the Company at its expense shall
issue and deliver to the person or persons entitled to receive the same a
certificate or certificates for the number of Warrant Shares issuable upon such
exercise. If such exercise is for less than all of the Warrant Shares, the
Company shall additionally, as promptly as practicable on or after such date, at
its expense, issue and deliver a replacement warrant identical to this Warrant,
except that the number of shares available for exercise shall be reduced by the
number of Warrant Shares exercised.

                  3. NET ISSUE EXERCISE. In lieu of exercising this Warrant by
paying the Exercise Price in cash or by check, Holder may elect to receive
shares equal to the value of this Warrant (or the portion thereof being
canceled) by surrender of this Warrant at the principal office of the Company,
together with notice of such election, in which event the Company shall issue to
Holder a number of shares of the Common Stock computed using the following
formula:

                  Where X - The number of shares of Common Stock to be issued to
Holder.

                             X= (Y)(A-B)
                                   A

                        Y - The number of shares of Common Stock to be canceled
pursuant to such exercise under this Warrant.

                        A - The fair market value of one share of Common Stock.

                        B - Exercise Price (as adjusted to the date of such
calculations).

                  For purposes of this Section, while the Company is privately
held, the fair market value of one share of the Common Stock shall be the fair
market value of such share as determined in good faith by the Board of Directors
of the Company.

                  4. NO FRACTIONAL SHARES OR SCRIP. No fractional shares or
scrip representing fractional shares shall be issued upon the exercise of this
Warrant. In lieu of any fractional share to which the Holder would otherwise be
entitled, the Company shall make a cash payment equal to the Exercise Price
multiplied by such fraction.

                  5. NO RIGHTS OF SHAREHOLDER. The Holder shall not be entitled
to vote or receive dividends or be deemed the holder of Common Stock or any
other securities of the Company or receive any benefits thereunder, accrued or
otherwise, that may at any time be issuable on the exercise hereof for any
purpose, nor shall anything contained herein be construed to confer upon the
Holder, as such, any of the rights of a shareholder of the Company or any right
to vote for the election of directors or upon any matter submitted to
shareholders at any meeting thereof, or to give or withhold consent to any
corporate action or to receive notice of meetings, or to receive dividends or
subscription rights or otherwise until the Warrant shall have



                                      A-2
<PAGE>

been exercised and the Warrant Shares purchasable upon the exercise hereof shall
have been issued, as provided herein.

                  6. TRANSFER OF WARRANT.

                           (a) WARRANT REGISTER. The Company will maintain a
register (the "Warrant Register") containing the names and addresses of the
Holder (or Holders, if any portion of this Warrant is transferred pursuant to
this Section 6). Any Holder of this Warrant or any portion thereof may change
his address as shown on the Warrant Register by written notice to the Company
requesting such change. Any notice or written communication required or
permitted to be given to the Holder may be delivered or given by mail to such
Holder as shown on the Warrant Register and at the address shown on the Warrant
Register. Until this Warrant is transferred on the Warrant Register of the
Company, the Company may treat the Holder as shown on the Warrant Register as
the absolute owner of this Warrant for all purposes, notwithstanding any notice
to the contrary.

                           (b) NON-TRANSFERABILITY AND NON-NEGOTIABILITY OF
WARRANT. This Warrant may not be transferred or assigned without compliance with
all applicable federal and state securities laws by the transferor and the
transferee (including the delivery of investment representation letters and
legal opinions reasonably satisfactory to the Company).

                           (c) COMPLIANCE WITH SECURITIES LAWS.

                                    i) PURCHASE ENTIRELY FOR OWN ACCOUNT. The
Holder of this Warrant, by acceptance hereof, acknowledges that this Warrant and
the Warrant Shares to be issued upon exercise hereof are being acquired solely
for the Holder's own account and not as a nominee for any other party, and for
investment, and that the Holder will not offer, sell or otherwise dispose of
this Warrant or any Warrant Shares to be issued upon exercise hereof except
under circumstances that will not result in a violation of the Act or any state
securities laws. Upon exercise of this Warrant, the Holder shall, if requested
by the Company, confirm in writing, in a form satisfactory to the Company, that
the Warrant Shares so purchased are being acquired solely for the Holder's own
account and not as a nominee for any other party, for investment, and not with a
view toward distribution or resale.

                                    ii) DISCLOSURE OF INFORMATION. The Holder
believes that it has received all the information it considers necessary or
appropriate with respect to this Warrant. The Holder further represents that it
has had an opportunity to ask questions and receive answers from the Company
regarding the terms and conditions of this Warrant.

                                    iii) INVESTMENT EXPERIENCE. The Holder is an
investor in securities of companies in the development stage and acknowledges
that it is able to fend for itself, can bear the economic risk of its investment
and has such knowledge and experience in financial or business matters that it
is capable of evaluating the merits and risks of this Warrant. If other than an
individual, the Holder also represents that it has not been organized for the
purpose of acquiring the Warrant.



                                      A-3
<PAGE>

                                    iv) ACCREDITED INVESTOR. The Holder is an
"accredited investor" within the meaning of SEC Rule 501 of Regulation D, as
presently in effect and understands the meaning of that term.

                                    v) RESTRICTED SECURITIES. The Holder
understands that this Warrant and the Warrant Shares issuable upon exercise
hereof are "restricted securities" under the federal securities laws inasmuch as
they are being acquired from the Company in a transaction not involving a public
offering and that under such laws and applicable regulations such securities may
be resold without registration under the Act only in certain limited
circumstances. In this connection, the Holder represents that it is familiar
with SEC Rule 144, as presently in effect, and understands the resale
limitations imposed thereby and by the Act.

                                    vi) FURTHER LIMITATIONS ON DISPOSITION.
Without in any way limiting the representations set forth in (i) above, the
Holder further agrees not to make any disposition of all or any portion of this
Warrant or any Warrant Shares to be issued upon exercise hereof unless and until
the transferee has agreed in writing for the benefit of the Company to be bound
by this Section 6, provided and to the extent such sections are then applicable,
and:

                                    (A) there is then in effect a registration
statement under the Act covering such proposed disposition and such disposition
is made in accordance with such registration statement; or

                                    (B) (1) the Holder shall have notified the
Company of the proposed disposition and shall have furnished the Company with a
detailed statement of the circumstances surrounding the proposed disposition and
(2) upon request by the Company, the Holder shall have furnished the Company
with an opinion of counsel, satisfactory to the Company, that such disposition
will not require registration of such securities under the Act.

                           vii) LEGENDS. This Warrant and all Warrant Shares
issued upon exercise hereof may bear one or all of the following legends:

                                    (A) "THE SECURITIES REPRESENTED HEREBY HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"),
AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED
IN THE ABSENCE OF A REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO SUCH
SECURITIES, OR DELIVERY OF AN OPINION OF COUNSEL IN FORM AND SUBSTANCE
SATISFACTORY TO THE ISSUER OF THESE SECURITIES THAT SUCH OFFER, SALE, TRANSFER,
PLEDGE OR HYPOTHECATION IS IN COMPLIANCE WITH THE ACT."

                           (B) Any legend required under any applicable state
securities laws.

                  7. RESERVATION OF STOCK. The Company covenants that during the
term this Warrant is exercisable, the Company will reserve from its authorized
and unissued Common Stock a sufficient number of shares to provide for the
issuance of the Warrant Shares upon the exercise of this Warrant and, from time
to time, will take all steps necessary to amend its Articles



                                      A-4
<PAGE>

of Incorporation to provide sufficient reserves of shares of Common Stock
issuable upon exercise of this Warrant, to the extent the Company can readily
ascertain the number of shares of Common Stock. The Company further covenants
that all shares that may be issued upon the exercise of rights represented by
this Warrant and payment of the Exercise Price, as set forth herein, shall be
free from all liens and charges in respect of the issue thereof. The Company
agrees that its issuance of this Warrant shall constitute full authority to its
officers who are charged with the duty of executing stock certificates to
execute and issue the necessary certificates for shares of Common Stock upon the
exercise of this Warrant.

                  8. ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF WARRANT SHARES.
The number of and kind of securities purchasable upon exercise of this Warrant
and the Exercise Price shall be subject to adjustment from time to time as
follows:

                  (a) SUBDIVISIONS, COMBINATIONS AND OTHER ISSUANCES. If the
Company shall at any time prior to the expiration of this Warrant subdivide its
Common Stock, by split-up or otherwise, or combine its capital stock, or issue
additional securities as a dividend with respect to any shares of its Common
Stock, the number of Warrant Shares issuable upon the exercise of this Warrant
shall forthwith be proportionately increased, in the case of a subdivision or
stock dividend, or proportionately decreased in the case of a combination.
Appropriate adjustments shall also be made to the Exercise Price payable per
share, but the aggregate purchase price payable for the total number of Warrant
Shares purchasable under this Warrant (as adjusted) shall remain the same. Any
adjustment under this Section 8(a) shall become effective at the close of
business on the date the subdivision or combination becomes effective, or as of
the record date of such dividend, or in the event that no record date is fixed,
upon the making of such dividend.

                  (b) RECLASSIFICATION, REORGANIZATION, MERGER OR SALE. In case
of any reclassification, capital reorganization, change in the capital stock of
the Company (other than as a result of a subdivision, combination or stock
dividend provided for in Section 8(a) above), or any consolidation or merger of
the Company with another corporation, or the sale of all or substantially all of
its assets to another corporation effected in such a way that holders of Common
Stock shall be entitled to receive stock, securities or assets with respect to
or in exchange for Common Stock, then, as a condition of such reclassification,
reorganization, change, merger or sale, lawful provision shall be made, and duly
executed documents evidencing the same from the Company or its successor shall
be delivered to the Holder, so that the Holder shall have the right at any time
prior to the expiration of this Warrant to purchase, at a total price equal to
that payable upon the exercise of this Warrant, the kind and amount of shares of
stock and other securities and property receivable in connection with such
reclassification, reorganization, change, merger or sale, by a holder of the
same number of shares of capital stock as were purchasable by the Holder
immediately prior to such reclassification, reorganization, change, merger or
sale. In any such case appropriate provisions shall be made with respect to the
rights and interest of the Holder so that the provisions hereof shall thereafter
be applicable with respect to any shares of stock or other securities and
property deliverable upon exercise hereof, and appropriate adjustments shall be
made to the Exercise Price per share payable hereunder, provided the aggregate
purchase price shall remain the same.



                                      A-5
<PAGE>

                  (c) NOTICE OF ADJUSTMENT. When any adjustment is required to
be made in the number or kind of shares purchasable upon exercise of the
Warrant, or in the Exercise Price, the Company promptly shall notify the Holder
of such event and of the number of shares, the adjusted Exercise Price and the
type of securities or property thereafter purchasable upon exercise of the
Warrant.

         9. AMENDMENTS.

         (a) Any term of this Warrant may be amended only with the written
consent of the Company and the Holder.

         (b) No waivers of or exceptions to any term, condition or provision of
this Warrant, in any one or more instances, shall be deemed to be, or construed
as, a further or continuing waiver of any such term, condition or provision.

         10. MISCELLANEOUS.

         (a) GOVERNING LAW. This Warrant shall be governed by and construed
under the laws of the State of California, excluding that body of law relating
to conflict of laws.

         (b) NOTICES. Unless otherwise provided, any notice required or
permitted under this Warrant shall be given in writing and shall be deemed
effectively given upon personal delivery to the party to be notified or upon
deposit with the United States Post Office, by registered or certified mail,
postage prepaid and addressed to the party to be notified at the address
indicated for such party on the signature page hereof in the case of the
Company, and on the Warrant Register in the case of the Holder, or at such other
address as such party may designate by ten days' advance written notice to the
other parties.

         (c) COUNTERPARTS. This Warrant may be executed in counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one and the same instrument.


                                      A-6
<PAGE>



                  IN WITNESS WHEREOF, the Company has caused this Warrant to be
executed by its officers thereunto duly authorized.


Dated:  December 31, 1998            GRAPHON CORPORATION



                                     By:
                                        ---------------------------------------
                                     Name:  Walt Keller
                                     Title: President

                                     Address: 150 Harrison Avenue
                                              Campbell, CA 96008


                                     ACCEPTED:

                                     COREL CORPORATION


                                     By:
                                        ---------------------------------------

                                     Name:
                                        ---------------------------------------

                                     Title:
                                        ---------------------------------------


                                     Address: Corporate Headquarters
                                              1600 Carling Avenue
                                              Ottawa, Ontario
                                              K1Z8R7
                                              Canada




              [SIGNATURE PAGE TO WARRANT TO PURCHASE COMMON STOCK]

<PAGE>



                               NOTICE OF EXERCISE

To:  GraphOn Corporation (the "Company")

                  The undersigned hereby elects to purchase __________ shares of
the Common Stock (or such stock or securities receivable upon the exercise of 
the Warrant) at an exercise price per share as set forth in the Warrant.

                  The undersigned hereby:

                        ______     "Net-exercises" the Warrant.

                        ______     Tenders payment of the aggregate exercise
price in cash, check and/or cancellation of debt.

                  The undersigned requests that the Company issue a certificate
or certificates representing said shares of the Common Stock (or such stock or
securities receivable upon exercise of the Warrant) of the Company in the name
of the undersigned or in such other name as is specified below:


                        ---------------------------------------
                        (Print Name)

                  By its signature below, the undersigned hereby confirms and
acknowledges that the shares of Common Stock issuable upon exercise of the
Warrant (or such stock or securities receivable upon exercise of the Warrant)
are being acquired solely for the account of the undersigned and not as a
nominee for any other party, and for investment, and that the undersigned will
not offer, sell or otherwise dispose of any such shares of Common Stock (or such
stock or securities receivable upon the exercise of the Warrant) except under
circumstances that will not result in a violation of the ____________or any
state securities laws.

Date:
     ------------------           ---------------------------------------------
                                  (Print Name)

                                  ---------------------------------------------
                                  (Signature)

                                  By:
                                     ------------------------------------------
                                  (Name and title of signatory, if non-natural
                                   person)




<PAGE>



                  Please issue a new Warrant for the unexercised portion of the
attached Warrant in the name of the undersigned or in such other name as is
specified below:


                                     ------------------------------------------
                                     [Name]


                                     ------------------------------------------

- -----------------                    ------------------------------------------
[Date]                                               [Signature]







<PAGE>

                                                                   Exhibit 10.7

                            HIDDEN VALLEY OFFICE PARK
                                 LEASE AGREEMENT








Landlord:       ASA PROPERTIES, INC. a Washington corporation

Tenant:         GraphOn Corporation a California corporation




<PAGE>



                                  OFFICE-LEASE
                             BASIC-LEASE-INFORMATION


Date of Lease:

Landlord:                          ASA Properties, Inc., a Washington
                                   corporation

Tenant:                            GraphOn Corporation, a California corporation

Name and Location of Building:     Hidden Valley Office Park
[Paragraph 1(a)]                   1750 112th Ave. NE, Bellevue, WA 98004

Net Rentable Area of Premises:     2,277 rsf (Suite C-242)
[Paragraph l(b))

Base Year:                         1998
[Paragraph l(c))

Tenant's Percentage Share:         1.91% (.0191)
[Paragraph 1(k)]

Net Rentable Area of Building:     119,710 sf
[Paragraph 1 (k)

Term Commencement:                 June 8, 1998
[Paragraph 3]

Term Expiration:                   May 3l, 2001
[Paragraph 3]

Minimum Rent:                      $3,890.00/mo. Months 1-12
[Paragraph 4(a)]                   $4,006.70/mo. Months 13-24
                                   $4,126.90/mo. Months 25-36
                                   (The first month's rental is prorated if less
                                   than a full month)

Security Deposit:                  $4,126.90
[Paragraph 32]

Tenant's Address for Notices:      1750 - 112th Avenue N.E., Bellevue, WA 98004
[Paragraph 37]                     Suite C-242

Landford's Address for Notices:    8805 148th Ave. NE
[Paragraph 37]                     Redmond, WA 98052


<PAGE>



Exhibits:                          A, B, C, D & E
[Paragraph 44])

Additional Provisions:             Tenant to pay the first month's basic rent 
[Paragraph 45]                     and security deposit in advance at the 
                                   execution of this Lease by Tenant.

The provisions of the Lease identified above in brackets are those provisions
where reference to particular Basic Lease Information appear. Each reference to
an item of basic Lease Information set forth above. In the event of any conflict
between any Basic Lease Information and the Lease, the latter shall control.

         TENANT                               LANDLORD
         GraphOn Corporation,                 ASA Properties, Inc.,
         a California corporation             a Washington Corporation


         Please Initial:                      Please Initial:
                        ---------                            ---------



<PAGE>


<TABLE>
<CAPTION>

                                TABLE OF CONTENTS

<S>         <C>                                                  <C> 
1.          Definitions                                           4
2.          Premises                                              5
3.          Term                                                  5
4.          Rent                                                  5
5.          Taxes and Assessments                                 6
6.          Operating Expenses                                    6
7.          Estimated Payments                                    6
8.          Common Areas                                          7
9.          Use                                                   7
10.         Services                                              8
11.         Alterations, Fixtures and Improvements                8
12.         Liens                                                 8
13.         Repair and Maintenance of Premises                    9
14.         Damage and Destruction                                9
15.         Indemnification                                      10
16.         Insurance                                            10
17.         Condemnation                                         11
18.         Compliance with Legal Requirements                   11
19.         Assignment and Subletting                            12
20.         Rules and Regulations                                13
21.         Landlord's Access                                    13
22.         Default                                              14
23.         Landlord's Right to Cure Default                     15
24.         Attorneys' Fees                                      15
25.         Subordination                                        15
26.         No Merger                                            16
27.         Sale by Landlord                                     16
28.         Estoppel Certificate                                 16
29.         Holdover Tenancy                                     16
30.         Building Security                                    16
31.         Parking                                              17
32.         Security Deposit                                     17
33.         No Partnership                                       17
34.         Recording                                            17
35.         Modification and Financing Conditions                17
36.         Waiver                                               18
37.         Notices and Consents                                 18
38.         Complete Agreement                                   18
39.         Corporate Authority                                  18
40.         Limits to Tenant's Remedy                            18
41.         Brokers                                              19
42.         No Light and Air Easement                            18
</TABLE>


<PAGE>


<TABLE>
<S>         <C>                                                  <C>
43.         Miscellaneous                                        18
44.         Basic Lease Information and Exhibits                 19
45.         Additional Provisions

EXHIBITS C - Rules and Regulations                               20
Parking Rules and Regulations                                    24
</TABLE>



<PAGE>



                                  OFFICE LEASE

     THIS LEASE, DATED June 5, 1998, for purposes of reference only, is made and
entered into by and between ASA-Properties,-Inc., a Washington corporation
("Landlord") and GraphOn-Corporation a Califomia corporation ("Tenant")

                                   WITNESSETH:

     Landlord hereby leases to Tenant, and Tenant hereby leases from Landlord
the premises described in paragraph I (b) below for the term and subject to the
terms, covenants, agreements and conditions hereinafter set forth, to each and
all of which Landlord and Tenant hereby mutually agree.

1.   Definitions. Unless the context otherwise specifies or requires, the
following terms shall have the meanings herein specified:

     (a) The term "Building" shall mean the parcel of real property described on
Exhibit A attached hereto, situated in the location and commonly know by the
name specified in the Basic Lease Information, which name Landlord may change at
any time, and all other improvements on or appurtenances to such parcel.

     (b) The term "Premises" or "premises" shall mean that portion of a floor of
the Building outlined in red on the diagrams attached hereto as Exhibit B. The
premises contain the net rentable area specified in the Basic Lease Information.

     (c) The term "Base Year" shall mean the calendar year specified in the
Basic Lease Information as the Base Year.

     (d) The term "Operating Expenses" shall mean (1) all costs of management,
operation and maintenance of the Building including, without limitation, wages,
salaries and payroll burden of employees, janitorial, maintenance, guard and
other services, fees to any property manager (including Landlord if Landlord
performs property management services) license, permit and inspection fees,
charges and fees for transit development, housing or any other purpose, Building
office rent or rental value, power, water, waste disposal and other utilities,
materials and supplies, maintenance and repairs, Property Taxes (as defined in
subparagraph 16) below), depreciation on personal prop" and insurance, including
without limitation, casualty (including, without limitation, extended and broad
form coverage risks, mudslide, land subsidence, volcanic eruption, flood, and
earthquake), public liability, workmen's compensation, and rental loss
insurance, (2) the cost of compliance with all state, federal or local
governmental regulations affecting the Building, including, without limitation,
any cleanup, removal, remedial or restoration work required by any federal,
state or local governmental agency or political subdivision because of Hazardous
Material (defined in paragraph 9 below) present in or about any part of the
Building, including, without limitation, the soil or ground water under the
Building; all costs of legal proceedings contesting any matter concerning
operating and

                                        1

<PAGE>



managing the Building or the amount or the validity of any taxes, assessments,
fees, or other impositions levied, assessed or imposed against the Building or
use, occupancy or operation thereof, (3) the cost of any capital improvements
made to the Building by Landlord after the Base Year that reduce other Operating
Expenses or made to the Building by Landlord after the date of this Lease that
are required under any governmental law or regulation that was not applicable to
the Building at the time it was constructed, such cost or allocable portion
thereof to be amortized over such reasonable period as Landlord shall determine
together with interest on the unamortized balance at the rate of 10% per annum
or such higher rate as may have been paid by Landlord on funds borrowed for the
purpose of constructing such capital improvements and (4) a fee to Landlord (in
addition to any property management fee) to supervise and administer property
management in an amount not in excess of 10% of Operating Expenses; provided,
however, that Operating Expenses shall not include depreciation on the Building
other than depreciation on exterior window draperies provided by Landlord and
carpeting in public corridors and common areas, costs of tenants' improvements,
real estate brokers' commissions, interest and capital items other than those
refined to in clause (3) above. There shall be deducted from Operating Expenses
all amounts that have been included in Operating Expenses which have in fact
been paid by any tenant, including Tenant, on account o the cost or repairs or
services for which such tenant is directly and solely responsible. Actual
Operating Expenses for both the Base Year and each subsequent calendar year
shalI be adjusted to equal Landlord's reasonable estimate of Operating Expenses
had the total rentable area of the Building been occupied.

     (e) The term "Base Operating Expenses" shall mean the Operating Expenses
paid or incurred by Landlord in the Base Year.

     (f) The term "net rentable area" shall mean:

          (1) as to a floor leased entirely by Tenant, all areas within exterior
permanent Building walls, measured to the inside surface of exterior Building
walls, including rest rooms, janitor, telephone and electrical closets,
mechanical areas, and columns and projections necessary to the Building, but
excluding public stairs, elevator shafts and pipe shafts, together with the
enclosing walls thereof,

          (2) as to a floor only a portion of which is leased by Tenant, the
aggregate of the net usable area of the portion of the floor occupied by Tenant,
plus the result obtained by multiplying the area of the common area on such
floor times a fraction, whose numerator is the net usable area of Tenant's
portion of the floor and whose denominator is the net usable area of all tenant
space on such floor.

     (g) The term "net usable area" shall mean all floor area in a tenant space,
measured to the inside surface of exterior Building walls, to the office side of
corridors and i*her permanent partitions, and to the center of partitions that
separate the tenant space

                                        2

<PAGE>



from adjoining tenant spaces, without deduction for columns and projections
necessary to the Building.

     (h) The term "common area" shall mean the total area on the floor dedicated
to rest rooms, janitor, telephone and electrical closets, mechanical area, and
public corridors providing access to tenant space an such floor, but excluding
public stairs elevator shafts and pipe shags, together with the enclosing walls
thereof.

     (i) The term "Lease Year" shall mean each twelve month period during the
term hereof ending on December 3 1, provided that the First Lease Year shall
commence upon the commencement of the term hereof and shall end on the next
succeeding December 3 1, and the last Lease Year shall end upon the expiration
of the term hereof.

     (j) The term "Property Taxes" shall mean any form of real or personal
property taxes, assessments, special assessments, fees, charges, levies,
penalties, service payments in lieu of taxes, excises, assessments and charges
for transit, housing or any other purpose, impositions or taxes of every kind
and nature whatsoever, assessed or levied or imposed by any authority having the
direct or indirect power to tax, including, without limitation, any city,
county, state or federal government, or any improvement or assessment district
of any kind or nature whatsoever, whether or not consented to or joined in by
Landlord, against the Building or any legal or equitable interest of Landlord
therein or any personal property of Landlord used in the operation thereof,
whether now or hereafter imposed, whether or not now customary or in the
contemplation of the parties on the date of this Lease, excepting only taxes
measured by the net income of Landlord from all sources, any state, local,
federal, personal, franchise, capital stock, inheritance, estate, gift or
corporate income tax, or any other tax measured by the income of landlord;
provided that Property taxes shall not include any taxes, assessments or other
charges payable by Tenant pursuant to paragraph 5 below.

     (k) The term "Tenant's percentage share" shall mean the percentage figure
specified in the Basic Lease information. Landlord and Tenant acknowledge that
Tenant's percentage share has been obtained by dividing the net rentable area of
the Premises specified in the Basic Lease information by the total net rentable
area of the existing rental space in the Building specified in the Basic Lease
information and multiplying such quotient by100, In the event either the net
rentable area of the premises or the total net rentable area of the buiIding is
changed, Tenant's percentage share shall be appropriately adjusted, and as to
the calendar year in which such change occurs, Tenant's percentage share shall
be determined on the basis of the number of days during such calendar year at
each such percentage share.

2.   Premises.

     (a) Tenant hereby acknowledges that the premises shall be delivered in an
"as

                                                          3

<PAGE>



is" condition and that Landlord, except as may be expressly agreed by Landlord
in writing, has no obligation to alter, repair, renovate, or render fit for
tenant's occupancy, any part of the premises. Landlord reserves to itself the
use of the roof, exterior walls and the area beneath the premises, together with
the right to install, maintain, use, repair and replace plumbing, telephone
facilities, equipment, machinery, connections, pipes, ducts, conduits, and wires
leading through the premises and serving other parts of the Building in a manner
and in locations which will not unreasonably interfere with Tenant's use.

     (b) In the event Landlord determines to permit early occupancy of the
premises and, therefore, informs Tenant in writing that the premises are ready
for occupancy prior to the date set forth in the Basic Lease Information for the
commencement of the term of the Lease, Tenant shall have the right to take early
occupancy of the premises on such date as Landlord and Tenant shall agree, and
notwithstanding the provisions of paragraph 3 below, the term of the Lease shall
commence upon such occupancy.

     (c) The occupancy by Tenant of the premises shall constitute an
acknowledgment by Tenant that the premises are then in good, sanitary and
tenantable condition and repair. Notwithstanding the foregoing, Iandlord
represents and warrants, to (he best of its knowledge without inquiry, to Tenant
that, as of the Commencement Date, tile Premises, including any improvements
made by Landlord, shall be in compliance with all laws and regulations, and
built in a good and workmanlike manner with good materials and the equipment and
Building services serving the Premises shall be in good working order.

3.   Term. The term of this Lease shall commence and, unless sooner terminated,
shall end on the date respectively specified in the Basic Lease Information. If
Landlord for any reason cannot deliver possession of the premises to Tenant by
the date specified for term commencement, this Lease shall not be void or
voidable nor shall Landlord be liable to Tenant for any damage resulting
therefrom, but in that event, provided that the delay is not occasioned by the
act or omission of tenant, rental shall be waived for the period between the
commencement of such term and the date when possession is delivered. Provided,
however, if Landlord has not delivered the premises to Tenant within sixty (60)
days of the Term Commencement, this Lease shall be deemed null and void without
liability to either party, so long as such failure is not due to a delay caused
by the act of omission of Tenant.

4.   Rent. Tenant shall pay to Landlord as rental for the use and occupancy of
the premises, at the times and in the manner hereinafter provided, the following
sums of money:

     (a) Tenant shall pay to Landlord minimum rent in the amount specified in
the Basic Lease Information per year, payable in equal monthly installments in
advance on the commencement of the term hereof and on or before the first day of
each and every successive calendar month during the term hereof. If the term
commences on other than

                                        4

<PAGE>



the first day of a calendar month, the first payment of rent shall be
appropriately prorated on the basis of a 30-day month.

     (b) Tenant shall pay, as additional rent, all sums of money required to be
paid to Landlord pursuant to paragraphs 5, 6, 7, 10, 13 and 16 below, and all
other sums of money or charges required to be paid by Tenant hereunder in
addition to minimum rental, whether or not the some are designated "additional
rent". If such amounts or charges are not paid at the time provided in this
Lease, they shall nevertheless be collectible as additional rent with the next
installment of minimum rental thereafter falling due, but nothing herein
contained shall be deemed to suspend or delay the payment of any amount of money
or charge at the time the same becomes due and payable hereunder, or limit any
other remedy of Landlord. All amounts of money payable by Tenant to Landlord
under this Lease, if not paid when due, shall bear interest from the due date
until paid at the rate of the greater of 15% per annum or the prime rate
publicly announced by the Seafirst Bank at its main office in Seattle Washington
or its successor or its equivalent size competitor in the Seattle market place
should Seafirst Bank cease to exist, but not to exceed the maximum rate of
interest permitted by law ("Default Interest"). All payments due from Tenant to
Landlord hereunder shall be made to Landlord without deduction or offset in
lawful money of the United States of America at Landlord's address for notices
hereunder, or to such other person at such other place as Landlord may from time
to time designate in writing to Tenant.

     (c)Tenant hereby acknowledges that late payment by Tenant to Landlord of
rent and other sums due hereunder after the expiration of any applicable grace
period will cause Landlord to incur costs not contemplated by this Lease, the
exact amount of which will be extremely difficult to ascertain. Such costs
include, but are not limited to, processing and accounting charges, and late
charges which may be imposed on Landlord by the terms of any mortgage or trust
deed covering the premises. Accordingly, if any installment of rent or any other
sums due from Tenant shall not be received by Landlord when due Tenant shall pay
to Landlord a late charge equal to 6% of such overdue amount. The parties hereby
agree that such late charge represents a fair and reasonable estimate of the
costs Landlord will incur by reason of late payment by Tenant, Acceptance of
such late charge by Landlord shall in no event constitute a waiver of Tenant's
default as provided above, or prevent Landlord from exercising any of the other
rights and remedies available to Landlord hereunder or at law.

5.   Taxes and Assessments. In addition to the monthly rental and other charges
to be paid by Tenant hereunder, Tenant shall reimburse Landlord upon demand for
any and all taxes, assessments, levies, fees, charges and impositions whatsoever
levied or imposed or assessed by any authority having the direct or indirect
power to tax, including, without limitation, any city, county, state or federal
government or any improvement or other assessment district, whether or not
consented to or joined in by Landlord, payable by Landlord (other than income
taxes, measured by the net income of Landlord from all

                                        5

<PAGE>



sources), whether or not now customary or within the contemplation of the
parties hereto on the date of this Lease: (a) upon, measured by or reasonably
attributable to the cost or value of tenant's equipment, furniture, fixtures and
other personal property located in the premises or by the cost or value of any
leasehold improvements made in or to the premises by or for Tenant, other then
building standard tenant improvements made by Landlord, regardless of whether
title to such improvements shall be in Tenant or Landlord; (b) upon or measured
by the rental payable hereunder, including without limitation any gross income
tax or excise tax levied by any city, county, state, federal or other
governmental body with respect to the receipt of such rental; (c) upon or with
respect to the possession, leasing, operation, management, maintenance,
improvement, alteration, repair, use or occupancy by Tenant of the premises or
any portion thereof; (d) upon (his transaction or any document to which Tenant
is a party creating or transferring an interest or an estate in the premises. In
the event that it shall not be lawful for Tenant so to reimburse Landlord, the
monthly rental payable to Landlord under this Lease shall be revised to net
Landlord the same net rental after such imposition as would have been payable to
Landlord prior to such imposition.

6.   Operation Expenses. Tenant shall, during the entire term hereof, pay to
Landlord Tenant's percentage share of the amount by which all Operating Expenses
paid or incurred by Landlord in any Lease Year exceed Base Operating Expenses.
The amount of all sums payable hereunder shall be paid by Tenant to Landlord in
the manner set forth in paragraph 7 below.

7.   Estimated Payments. Unless otherwise expressly designated herein, all
monetary amounts payable to Tenant to Landlord pursuant to this Lease shall be
payable as follows:

     (a) During December of each Lease Year or as soon thereafter as
practicable, Landlord shall give Tenant notice of its estimate of amounts
payable hereunder for the ensuing Lease Year. On or before the first day of each
month during the ensuing Lease Year, Tenant shall pay to Landlord 1/12 of such
estimated amounts, provided that if such notice is not given in December Tenant
shall continue to pay on the basis of the prior year's estimate until the month
after such notice is given. If, at any time or times, it appears to Landlord
that the amounts payable for the current Lease Year will vary from its estimate
by more than 5%, Landlord shall, by notice to Tenant, revise its estimate for
such year, in which case subsequent payments by Tenant for such year shall be
based upon such revised estimate.

     (b) Within 90 day after the close of each Lease Year or as soon after such
90- day period as practicable, Landlord shall deliver to Tenant a statement of
amounts payable for such Lease Year. If on the basis of such statement Tenant
owes an amount that is less than the estimated payments for such Lease Year
previously made by Tenant and Tenant is not in default hereunder, Tenant shall
receive a credit in the amount if such excess against the next installments due
under paragraphs 6 and 7 hereof. If on the basis

                                        6

<PAGE>



of such statement Tenant owes an amount that is more than the estimated payments
for such Lease Year previously made by Tenant, Tenant shall pay the deficiency
to Landlord within 30 days after delivery of the statement.

     (c) If this Lease shall terminate an other than the last day of a calendar
year, the adjustment in rent applicable to the Lease Year in which such
termination shall occur shall be prorated on the basis which the number of days
from the commencement of such Lease Year to and including such expiration date
bears to 365. If the adjustment in rent is not determined until after the
termination of this Lease, any excess amounts due Tenant or deficiency amounts
due Landlord shall be paid in cash within 30 days after delivery of the
statement setting forth such adjustment determination.

     (d) Notwithstanding the foregoing, if, at any time, Landlord incurs for any
item actual costs or expenses which are reimbursable in whole or in part by
Tenant pursuant to this Lease and such costs or expenses are in excess of the
estimated amount budgeted for such item and otherwise payable by Tenant, then,
upon written demand ftom Landlord accompanied by a statement of such costs of
expenses, Tenant shall immediately pay to Landlord the full amount of any excess
reimbursable costs or expenses.

8.   Common Areas.

     (a) The use and occupation by Tenant of the premises shall include a right
to the use in common with others entitled thereto of the common areas and other
facilities as may be designated from time to time by Landlord, subject, however,
to the terms and conditions of this Lease. All common areas and facilities not
within the premises, which Tenant may be permitted to use and occupy pursuant to
this paragraph, are to be Used and occupied tinder a revocable license. If the
measure of such areas is diminished by Landlord, Landlord shall not be subject
to any liability nor shall Tenant be entitled to any compensation or diminution
or abatement of rent, nor shall such diminution of such areas be deemed
constructive or actual eviction.

     (b) Landlord shall at all times during the term of this Lease have the
following rights with respect to the common area and other facilities:

          (1) Landlord shall have the right from time to time to alter and
modify the common areas and other facilities as it deems desirable in its sole
discretion;

          (2) Landlord may discontinue the existence of the common area subject
to the requirements of laws and ordinances applicable thereto;

          (3) Landlord may promulgate and enforce such rules and regulations
relating to the use of the common areas and other facilities as Landlord deems
necessary or desirable.

                                        7

<PAGE>



Landlord shall exercise the foregoing rights in such a manner as to minimize the
interference with Tenant's beneficial enjoyment of the premises.

9.   Use.

     (a) The premises shall be used solely for general office purposes and no
other, except chiropractic services are permitted to the extent they are
permitted under codes for the City of Bellevue. Tenant shall not use or permit
the premises to be used for any other purpose without Landlord's prior written
consent. Landlord and Tenant hereby further acknowledge that the identity of
Tenant, the specific character of Tenant's business and anticipated use of the
premises and the relationship between such use and other uses within the
Building has been a material consideration to Landlord's entry into this Lease.
Any material change in the character if Tenant's business or use shall
constitute a default under this Lease.

     (b) Tenant shall not do or permit to be done in, on or about he premises,
nor bring or keep or permit to be brought or kept therein, anything which is
prohibited by or will in any way conflict with any law, statute, ordinance or
governmental rule or regulation now in force or which may hereafter be enacted
or promulgated, or which is prohibited by the standard form of fire insurance
policy or will in any way increase the existing rate of or affect any fire or
other insurance upon the Building, or cause a cancellation of any insurance
policy covering the Building or any part thereof of any of its contents. Tenant
shall not do or permit anything to be done in or about the premises which will
in any way obstruct or interfere with the rights of other tenants of the
Building, or injure or annoy them, or use or allow the premises to be used for
any improper, immoral, unlawful or objectionable purpose. Nor shall Tenant
cause, maintain or permit any nuisance in, or about the premises or commit or
stiffer to be committed any waste in or upon the premises.

     (c) Except for normal office and janitorial supplies in customary
quantities, Tenant shall not cause or permit any Hazardous Material to be
brought upon, kept or used in or about the premises or the Building. If Tenant
breaches the obligations stated in the preceding sentence, or if the presence of
Hazardous Material on the premises or the Building caused or permitted by Tenant
results in contamination of the premises or the Building the Tenant shall
indemnify, defend and hold Landlord harmless for, from and against any and all
claims, judgments, damages, penalties, fines, costs, liabilities or losses
(including, without limitation, diminution in value of the Building, damages for
the loss or restriction on use of rentable or usable space or of any amenity of
the Building, damages arising from any adverse impact on marketing of space in
the Building, and sums paid in settlement of claims, reasonable attorneys' fees,
consultant fees and expert fees) which arise during or after the Lease Term as a
result of such contamination. This indemnification of Landlord by Tenant
includes, without limitation, costs incurred in connection with any
investigation of site conditions or any cleanup, remedial, removal or

                                        8

<PAGE>



restoration work required by any federal, state or local governmental agency or
political subdivision because of hazardous Material present in or about any part
of the Building, including, without limitation, the soil or ground water under
the Building.

     As use herein, the term "Hazardous Material" means any hazardous or toxic
substance, material or waste which is or becomes regulated by any federal, state
or other local governmental authority, including, without limitation, any
material or substance which is designated as a "hazardous substance" pursuant to
Section 31 1 of the Federal Water Pollution Control Act (33 U.S.C. ss.1317),
defined as a "hazardous waste" pursuant to Section 1004 of the Federal Resource
Conservation and Recovery Act, (42 U.S.C. 6901 ET SEQ.), or defined as a
"hazardous substance" pursuant to Section 101 of the Comprehensive Environmental
Response, Compensation and Liability Act, (42 U.S.C. ss. 9601 ET SEQ.)

10.  Services.

     (a) Landlord shall maintain the public and common areas of the Building,
including lobbies, stairs, elevators, corridors, restrooms, windows, mechanical,
plumbing and electrical systems and the structure itself, in reasonably good
order and condition except for damage occasioned by the act of Tenant or
Tenant's invites, which damage shall be repaired by Landlord at Tenant's
expense.

     (b) Landlord shall furnish the premises with (1) electricity for fighting
and the operations of office machines, (2) heat and air conditioning to the
extent reasonably required for comfortable occupancy by Tenant in its use of the
premises during the period from 7:30 a.m. to 6 p.m. on weekdays (except
holidays), or such shorter period as may be prescribed by any applicable
policies or regulations adopted by any utility or governmental agency, (3)
elevator service, (4) initial lighting installation (for building standard
lights), (5) restroom supplies, (6) window washing with reasonable frequency,
(7) janitorial service five nights per week (except labor holidays) furnished in
the manner that such service is customarily famished in comparable office
buildings in the locale of the Building. Landlord shall not be in default
hereunder or be liable for any damages directly or indirectly resulting from,
nor shall the rental herein reserved be abated by reason of (i) the
installation, use or interruption of use of any equipment in connection with the
furnishing of any of the foregoing services, (it) failure to furnish or delay in
furnishing any such services when such failure or delay is caused by accident or
any improvements to the premises or to the Building, or (iii) the limitation,
curtailment, rationing or restrictions on use of water, electricity, gas or any
other form of energy serving the premises or the Building. Landlord shall use
reasonable efforts diligently to remedy any interruption in the furnishing of
such services.

     (c) Whenever heat generating machines or equipment or lighting other than
building standard lights are used in the premises by Tenant which affect the
temperature

                                        9

<PAGE>



otherwise maintained by the air conditioning system, Landlord shall have the
right to install supplementary air conditioning facilities in the premises or
otherwise modify the ventilating and air conditioning system serving the
premises, and the cost of such facilities and modifications shall be home by
Tenant. Tenant shall also pay as additional rent the cost of providing all
heating or cooling energy to the premises in excess of that required for normal
office use or during hours requested by Tenant when heat or air conditioning is
not other-wise furnished by Landlord. If Tenant installs lighting requiring
power in excess of that required for normal office use in the Building or if
Tenant installs equipment requiring power in excess of that required for normal
desk-top office equipment or normal copying equipment, Tenant shall pay for the
cost of such excess power as additional rent, together with the cost of
installing any additional risers or other facilities that may be necessary to
furnish such excess power to the premises.

     (d) Landlord at the commencement of this Lease shall equip the standard
electrical fixtures of the premises with light globes and fluorescent tubes and
ballasts, as the case may be; replacement thereof shall be Tenant's
responsibility and cost, and if Tenant shall request Landlord to replace same,
then the cost shall be paid by Tenant to Landlord.

11.  Alteration, Fixtures and Improvements.

     (a) Tenant shall not make or suffcr to be made any alterations, additions,
or improvements to or of the premises or any part thereof, or attach any fixture
or equipment thereto, without first obtaining Landiord's written consent which
consent shall not be unreasonably withheld, conditioned or delayed. At the time
Landlord consents to any alterations, additions or improvements, Landlord shall
inform Tenant inwriting whether Tenant is responsible for the removal of such
alterations and improvments at the expiration or earlier termination of the term
of this Lease. Nothwithstanding anything to the contrary herein, Tenant shall
have the right to make non-stnicrtiral alterations to the Premises which do not
affect the Building systems,or structural components, which cost less than Ten
Thousand Dollars ($1 0,000) each (each a "Permitted Alteration") with the prior
written consent of Landlord which shall not be unreasonably withheld,
conditioned or delayed, provided that such alterations are otherwise made in
compliance with the terms of this Lease, permits are applied for and approved by
the City of Bellevue and such such improvements enhance the Premises' ability to
be re-)et in the ftinire. Any alterations, additions or improvements to the
premises consented to by Landlord shall be made by Tenant at Tenant's sole cost
and expense according to plans and specifications approved by Landlord, and any
contractor or person selected by Tenant to make the same must first be approved
by Landlord. Landlord may require, at it option, that Tenant provide Landlord at
Tenant's sole cost and expense payment and performance bonds, in an amount equal
to 150% the estimated cost of any contemplated alterations, fixtures, and
improvements, to insure Landlord against any liability for mechanics' or
niatcrialmen's liens and to insure the completion of such work. All alterations,
additions, fixtures and improvements,

                                       10

<PAGE>



whether temporary or pen-nanent in character, made in or upon the premises
either by Tenant of Landlord (other than furnishings, trade fixtures and
equipment installed by Tenant), shall be Landiord's property and zit the end of
the term hereof, shall remain on the premises without compensation to Tenant,
provided that, if Landlord requested in Landlord's consent as provided for in
this Section 11, Tenant shall remove all such alterations, fixtures and
improvements from the premises and return the premises to the condition in which
they were delivered to Tenant. Upon such removal Tenant shall immediately and
fully repair any damage to the premises occasioned by the removal.

     (b) Landlord may perform, or cause to be performed, substantial renovation
and remodeling to the exterior and interior of the Building and Landlord
reserves the right to enter the premises in connection therewith. Landlord shall
reasonably attempt to minimize any iptemiption of tenant's business caused by
such renovation and remodeling.


12.  Liens. Tenant shall keep the premises and the Building free from any liens
arising out of any work performed, materials fumished or obligations incurred by
Tenant. In the event that Tenant shall not, within 10 days following the
imposition of any such lien, cause the same to be released of record, Landlord
shall have, in addition to all other remedics provided herein and by law, the
right but not the obligation to cause the same to be released by such means as
it shall deem proper, including payment of the claim giving rise to such lien.
All sums paid by Landlord for such purpose, and all expenses incurred by it in
connection therewith including, without limitation, any attorneys' fees, court
costs, and expenses of litigation, together with Default interest thereon, shall
be payable to Landlord by Tenant on demand. Nothing in this Lease shall be
construed in any way as constituting the consent or request of the Landlord,
expressed or imposed, by inference or otherwise, to any contractor,
subcontractor, laborer, or materialmen, for t ie performance of any labor, or
the furnishing of any materials for any specific improvement, alteration and
repair of or to the premises or as giving Tenant the right, power or authority,
to contract for or permit the rey deicing of any service or the furnishing of
any material that would give rise to the filing of any mechanic's I ens against
the premises. Landlord shall have the right to post and keep posted on the
premises any notices, it at may be provided by law or which Landlord may deem to
be proper for the protection of Landlord, the premises and the Building from
such liens, and Tenant shall give Landlord at least 5 days' prior notice of the
date of commencement of any construction on the premises in order to permit the
posting of such notices.

13.  Repairs and Maintenance of Premises.

     (a) Tenant shall at all times during the term hereof and at Tenant's sole
cost and expense, keep the premises and every part thereof in reasonably good
condition and repair, ordinary wear and tear, damage thereto by fire,
earthquake, act of God or the elements excepted. Subject to the provisions of
paragraph 11I above concerning the

                                       11

<PAGE>



removal of alterations, additions and improvements, Tenant shall at the end of
the term hereof surrender to Landlord the premises and all alterations,
additions and improvements thereto in the same condition as when received or
when first installed, ordinary wear and tear and damage by fire, earthquake, act
of God or the elements excepted. Landlord has no obligation and has made no
promise to alter, remodel, improve, repair, decorate or paint the premises or
any part thereof. No representations respecting the condition of the premises or
the Building have been made by Landlord to Tenant, except as specifically herein
set forth. The Tenant hereby waives any and all express or implied warranties
relating to or arising from this Lease, the Premises or the tenancy.

     (b) Landlord shall assign to Tenant, and Tenant shall have the benefit of,
any guarantee or warranty to which Landlord is entitled under any purchase,
construction or installation contract relating to a component of the premises
which Tenant is obligated to repair and maintain. Tenant shall have the right to
call upon the contractor to make such adjustments, replacements, or repairs
which are required to be made by the contractor under such contract.

     (c) Notwithstanding the provisions of subparagraph 13(a) above, Landlord
shall repair and maintain the structural portions of the Building, including the
basic plumbing, air conditioning, heating and electrical systems, installed and
furnished by Landlord, unless such maintenance and repairs are caused in
material part or in whole by the act, neglect, fault or omission of any duty by
Tenant, its agents, servants, employees or invitees, in which case Tenant shall
pay to Landlord the reasonable cost of such maintenance and repairs. Landlord
shall not be liable for any failure to make any such repairs or to perform any
maintenance unless such failures shall persist for an unreasonable time,
considering all factors, including the availability of material, utilities and
labor, after written notice of the need of such repairs or maintenance is given
to Landlord by Tenant. There shall be no abatement of rent and no liability of
Landlord by reason of any injury to or interference with Tenant's business
arising from the making or failure to make any repairs, alterations or
improvements in or to any portion of the Building or the premises or in or to
fixtures, appurtenances, and equipment therein.

     (d) Tenant hereby waives any right to make repairs at landlord's expense
under the provisions of any laws permitting repairs by a tenant at the expense
of a landlord to the extent allowed by law; Landlord an Tenant have by this
Lease made specific provision for such repairs and have expressly defined their
respective obligations.

14.  Damage and Destruction.

     (a) If the premises or the portion of the Building necessary for Tenant's
occupancy should be damaged or destroyed during the term hereof by any casualty
insurable under standard fire and extended coverage insurance policies, Landlord
shall (except as hereafter provided) repair or rebuild tile premises to
substantially the condition

                                       12

<PAGE>



in which the premises were immediately prior to such destruction.

     (b) Landlord's obligation tinder this paragraph shall in no event exceed
the lesser of (1) with respect to the premises, the scope of building standard
improvements installed by Landlord in the original construction of the premises,
or (2) the extent of proceeds received by Landlord or any insurance policy
maintained by Landlord pursuant to paragraph 16(a) below, unless Landlord
nevertheless elects to repair or rebuild the premises.

     (c) The minimum rent shall be abated proportionately during any period in
which, by reason of any damage or destruction not occasioned by the negligence
or willful misconduct of Tenant or Tenant's employees or invitees, there is a
substantial interference with the operation of the business of Tenant. Such
abatement shall be proportional to the measure of business in the premises which
Tenant may be required to discontinue. The abatement shall continue for the
period commencing with such destruction or damage and ending with the completion
by the Landlord of such work, repair or reconstruction as Landlord is obligated
to do.

     (d) Notwithstanding the foregoing, if the premises, or the portion of the
Building necessary for Tenant's occupancy should be damaged or destroyed (1) to
the extent of 10% or more of the then replacement value of either, (2) in the
last year of the term hereof, (3) by a cause or casualty other than those
covered by fire and extended coverage insurance, or (4) to the extent that it
would take, in Landlord's opinion, in excess of 90 days to complete the
requisite repairs, then Landlord may either terminate this Lease or elect to
repair or restore said damage or destruction, in which event Landlord shall
repair or rebuild the same as provided in subparagraph (a) above. If such damage
or destruction occurs and this Lease is not so terminated by Landlord, this
Lease shall remain in full force and effect. The parties hereby waive the
provisions of any law that would dictate automatic termination or grant either
party an option to terminate in the event of damage or destruction. Landlord's
election to terminate Landlord's obligation under this paragraph shall be
exercised by written notice to Tenant given within 60 days following the damage
or destruction. Such notice shall set forth the effective date of the
termination of this Lease.

     (e) Upon the completion of any such work of repair or restoration by
Landlord, Tenant shall forthwith repair and restore all other parts of the
premises including without limitation, non-building standard leasehold
improvements and all trade fixtures, equipment, furnishings, signs and other
improvements originally installed by Tenant, subject to the requirements of
subparagraph 11 (a) above.

15.  Indemnification. Except to the extent caused by the gross negligence or
willful misconduct of Landlord or Landlord's agents, employees or invitees,
Landlord shall not be liable to Tenant and Tenant hereby waives all claims
against Landlord for any injury to or

                                       13

<PAGE>



death of any person of damage to or destruction of property in or about the
premises or the Building by or from any cause whatsoever, including, without
limitation, acts of other tenants or other third parties, gas, fire, oil,
electricity or leakage of any character from the roof, walls, basement or other
portion of the premises or the Building. Except to the extent caused by the
gross negligence or willful misconduct of Landlord or Landlord's agents,
employees or invitees, Tenant shall hold Landlord and any ground Landlord
harmless for, from and against and defend Landlord against any and all claims,
liability, damage or loss, and for, from and against all costs and expenses,
including reasonable attorneys' fees, arising out of any injury to or death of
any person or damage to or destruction of any property, from any cause
whatsoever (except any cause resulting solely from the gross negligence or
willful act of Landlord, its authorized agents or employees) occurring in or
about the premises or the Building and, if occurring on or about any portion of
the common areas or elsewhere in or about the Building, when such injury or
damage shall be caused in whole or in part by the act, neglect, default or
omission of any duty by Tenant, its agents, employees or invitees or otherwise
by any conduct or transactions of any of said persons in or about or concerning
the premises, including any failure of Tenant to observe or perform any of its
obligations hereunder. 'Me provisions of this paragraph 15 shall survive the
termination of this Lease with respect to any damage, injury or death occurring
prior to such termination.

16.  Insurance.

     (a) Tenant shall procure and maintain in full force and effect during the
entire term hereof, at its own expense and in companies acceptable to Landlord,
the following policy or policies of insurance.

          (1) Comprehensive liability insurance, including property damage,
insuring Landlord and the Building, as Landlord may designate, hereinafter
called "additional designated insured") from and against all claims, demands,
actions or liability for injury to or death of any persons, and for damage to
property arising from or related to the use of occupancy of the premises or the
operation of Tenant's business. No deductible shall be carried under this
coverage without the prior written consent of Landlord. Such policy shall
contain but not be limited to, coverage for premises and operations, products
and completed operations, blanket contractual, personal injury, operations,
ownership, maintenance and use of owned, non-owned, or hired automobiles, bodily
injury and property damage. The policy shall have limits in amounts not less
than $1,000,000 per person and per occurrence, with an aggregate limit of
$2,000,000. This insurance shall carry a contractual coverage endorsement
specifically insuring the performance by Tenant of its indemnity agreement
contained in paragraph 15 above. If in the opinion of Landlord's insurance
advisor, based on a substantial increase in recovered liability claims, the
aforesaid amounts of coverage are no longer adequate, then such coverage shall
be proportionately increased.


                                       14

<PAGE>



          (2) Worker's Compensation Insurance and Employer's Liability Insurance
with a limit of no less than that amount required by law, provided that
Employer's Liability Insurance shall have a minimum coverage of $1,000,000 per
person and per occurrence.

          (3) Fire insurance with standard extended coverage of "all risk"
endorsement, including, without limitation, vandalism and malicious mischief, to
extent of 90% of the replacement value of all furnishings, trade fixtures,
leasehold improvements, equipment, merchandise and other personal property and
leasehold improvements from time to time situated in, on or upon the premises.
As long as this Lease is improvements from time to time in effect, the proceeds
from any such insurance shall be held in trust to be used only for the repair or
replacement of the improvements, fixtures and other property so insured.

     (b) Landlord may elect to procure and maintain liability insurance and
insurance covering fire and such other risks of direct indirect loss or damage
as it reasonably deems appropriate, including extended and broad form coverage
risks, mudslide, land subsidence, volcanic eruption, flood and earthquake, on
leasehold as improvements in the Building. Tenant shall reimburse Landlord for
the costs of all such insurance as part of Operating Expenses reimbursable
pursuant to paragraph (6). Any insurance coverage herein provided shall be for
the benefit of Landlord, Tenant and any additional designated insured, as their
interests may appear, Tenant shall not adjust losses or execute proofs of loss
under such policies without Landlords prior written approval.

     (c) Should this Lease be canceled pursuant to the provisions of paragraph
14 above by reason of damage or destruction and Tenant is thus relieved of its
obligation to restore or rebuild the improvements on the premises, any insurance
proceeds for damage to the premises, including all fixtures and leasehold
improvements thereon, shall belong to Landlord, free and clear of any claims by
Tenant.

     (d) All policies of insurance described in this paragraph 16 of which
Tenant is to procure and maintain, shall be issued by good, responsible
companies, reasonably acceptable to Landlord and qualified to do business in the
state in which the Building is situated. Executed copies of such policies of
insurance or, at Landlord's election, certificates thereof, shall be delivered
to Landlord and any additional designated insureds within 10 days after delivery
of possession of the premises to Tenant and thereafter within 30 days prior to
the termination or expiration of the term of each existing policy. All public
liability and property damage policies shall contain the following provisions:
(1) Landlord, and any additional designated insureds although named as insured,
shall nevertheless be entitled to recovery under said policies for any loss
occasioned to them, their servant , agents and employees by reason of the
negligence of Tenant, its officers, agents or employees; (2) the company writing
such policy shall agree to give Landlord and any additional designated insured
not less than 30 days' notice in writing prior to any cancellation, reduction or
modification of such insurance; and (3) at the election of

                                       15

<PAGE>



Landlord's mortgagee, the proceeds of any insurance shall be paid to a trustee
or depository designated by Landlord's mortgagee. All public liability, property
damage and other casualty policies shall be written as primary policies, not
entitled to contribution from, nor contributing with, any coverage which
Landlord may carry.

     Tenant hereby acknowledges that the late delivery by Tenant to Landlord of
the insurance certificates or policies referred to above will cause Landlord to
incur costs nol contemplated by this lease, the exact amount of which will be
extremely difficult to ascertain. Such costs include, but are not limited to,
processing and accounting charges and penalties which may be imposed on Landlord
by the terms of any mortgage or trust deed covering the premises. Accordingly,
if any insurance certificate or policy required to be delivered by Tenant above
shall not be received by Landlord at the time prescribed above, Tenant shall pay
to Landlord a charge in the sum of $300. The parties hereby agree that such
charge represents a fair and reasonable estimate of the costs Landlord will
incur by reason of late delivery by Tenant, and acceptance of such charge by
Landlord shall in no event constitute a waiver of Tenant's default with respect
to such late delivery, nor prevent Landlord from exercising any of the other
rights and remedies available to Landlord hereunder or at law.

     (e) Notwithstanding anything to the contrary contained within this
paragraph, Tenant's obligations to carry the insurance provided for herein may
be brought within the coverage of the so-called blanket policy or policies of
insurance carried and maintained by Tenant; provided, however, that (1) Landlord
and such other persons shall be named as additional insureds thereunder as their
interests may appear; (2) the coverage afforded to Landlord and such other
persons will not be reduced of diminished by reason of the use of such blanket
policy of insurance; and (3) all other requirements set forth herein are
otherwise satisfied.

     If Tenant should fail either to acquire the insurance required pursuant to
this paragraph 16 and to pay the premiums therefor or to deliver required
certificates or policies, Landlord may in addition to any other rights and
remedies available to Landlord, acquire such insurance and pay the requisite
premiums therefor, which premiums shall be payable by Tenant to Landlord
immediately upon demand.

     (g) Landlord and Tenant hereby waive any rights each may have against the
other for loss or damage to its property or property in which it may have an
interest where such loss is caused by a peril of the type generally covered by
fire insurance with extended coverage or arising from any cause which the
claiming party was obligated to insure against under this Lease, and each party
on behalf of its insurer waives any right of subrogation that the insurer might
otherwise have against the other party. The parties agree to cause their
respective insurance companies insuring the premises or insuring their property
on or in the premises to execute a waiver of any such rights of subrogation.


                                       16

<PAGE>



17.  Condemnation.

     (a) The term "total taking" means the taking of the fee title or Landlord's
master leasehold estate to so much of the premises or a portion of the Building
necessary for Tenant's occupancy by right of eminent domain or other authority
of law, or a voluntary transfer tinder the threat of the exercise thereof, that
the premises are not suitable for Tenant's intended use. The term "partial
taking" means the taking of only a portion of the premises or the Building which
does not constitute a total taking as above defined.

     (b) If during the term hereof there shall be a total taking then this
Lease, and the leaschold estate of Tenant in and to the premises, shall cease
and terminate as of the date possession is taken. As used in this paragraph, the
phrase "date possession is taken" means the date of taking actual physical
possession thereof by the condemning authority or such earlier date as the
condemning authority gives notice that it shall be deemed to have taken
possession.

     (c) If during the term hereof there shall be a partial taking of the
premises, this Lease shall terminate as to the portion of the premises taken on
the date on which actual possession of the portion of the premises is taken
pursuant to the eminant domain proceedings and this Lease shall continue in full
force and effect as the remainder of the premises. The minimum rent payable by
Tenant for the balance of the term shall be abated in the ratio that the net
rentable area of the premises taken bears to the net rentable area of the
premises immediately prior to such taking, and Landlord shall make all necessary
repairs or alterations to make the remaining premises a complete architectural
unit, suitable for Tenant's permitted use hereunder.

     (d) All compensation and damages awarded for the taking of the premises,
any portion thereof, or the whole or any portion of the common area or Building
shall, except as otherwise herein provided, belong to and be the sole property
of Landlord, and Tenant shall not have any claim or be entitled to any award for
diminution in value of its rights hereunder or for the value of any unexpired
term of this Lease; provided, however, that Tenant shall be entitled to make its
own claim for, and receive separate award that may be made for Tenant's loss of
business or for the taking of or injury to Tenant's improvements, or on account
of any cost or loss Tenant may sustain the removal of Tenant's trade fixtures,
equipment, and furnishings, or as a result of any alterations, modifications or
repairs which may be reasonably required by Tenant in order to place the
remaining portion of the premises not so condemned in a suitable condition for
the continuance of Tenant's occupancy. The Tenant's award pursuant to this
subparagraph shall not reduce Landlord's award.

     (e) If this Lease is terminated pursuant to the provisions of this
paragraph 17, then all rentals and other charges payable by Tenant to Landlord
hereunder shall be paid up to the date upon which possession shall be taken by
the condemning agency and any

                                       17

<PAGE>



rentals and other charges paid in advance and allocable to the period after the
date possession is taken, shall be repaid to Tenant by Landlord, and the parties
shall thereupon be released from all further liability hereunder.

18.  Compliance With Legal Requirements. Tenant shall at its sole cost and
expense promptly comply with all laws, statutes, ordinances and governmental
rules, regulations or requirements now in force or which may hereafter be in
force, with the requirements of any board of fire underwriters or other similar
body now or hereafter constituted, with any direction or occupancy certificate
issued pursuant to any low by any public officer or officers, as well as the
provisions of all recorded documents affecting the premises, as they relate to
or affect the condition, use or occupancy of the premises, excluding
requirements of structural changes not related to or affected by improvements
made by or for Tenant or Tenant's use of the premises.

19.  Assignment and Subletting.

     (a) Tenant shall not transfer, assign, sublet, enter into license or
concession agreements, or hypothecate this Lease or the Tenant's interest in and
to the premises without first procuring the written consent of Landlord, which
consent shall not unreasonably be withheld, coaditioned or delayed. Any
attempted transfer, assignment, subletting license or concession agreement or
hypothecation without Landiord's consent shall be void and shall, at the option
of Landlord, terminate this Lease. This Lease shall not, nor shall any interest
herein, be assignable as to the interest of Tenant by operation of law without
the consent of Landlord. Tenant agrees to reimburse Landlord for Landiord's
reasonable attorneys' fees incurred in conjunction with the processing and
documentation of any such requested transfer, assignment, subletting, licensing
or concession agreement, or hypothecation of this Lease or Tenant's interest in
and to the premises. As it pertains to this Lease, any overage or other
compensation above the base rental established herein paid to Tenant in any
sublease or assignment shall belong in its entirety to Landlord.

     (b) Before entering into any assignment of this Lease or into a sublease of
all or part of the premises, Tenant shall give wri"cn notice to Landlord
identifying the intended assignee or subtenant by name and address and
specifying the terms of the intended assignment or sublease. For a period of
thirty (30) days after such notice is given, Landlord shall have the right by
written notice to Tenant to (i) in the case of a proposed sublease, either (A)
sublet from tenant any portion of the premises proposed to be sublet for the
term for which such portion is proposed to be sublet but at the same rent as
Tenant is required by pay to Landlord under this Lease for the same space,
computed on a pro rata square footage basis, or (B) if the proposed subletting
is for substantially the remaining period of the term of this Lease, terminate
this Lease or terminate this Lease as is pertains to the portion of the premises
so proposed by Tenant to be sublet, or (it) in the case of a proposed
assignment, terminate this Lease. If Landlord so terminates this

                                       18

<PAGE>



Lease, such termination shall be as of the date specified in Landlord's notice,
If Landlord so terminates this Lease, Landlord may, if it elects, enter into a
ne%v lease covering the premises or a portion thereof with the intended assignee
or subtenant on such terms as Landlord and such person may agree, or enter into
a new lease covering the premises or a portion thereof with any other person; in
such event, Tenant shall not be entitled to any portion of the profit, if any,
which Landlord may realize on account of such termination and reletting.
Landlord's exercise of its aforesaid option shall not be construed to impose any
liability upon Landlord with respect to any real estate brokerage commission(s)
or any other costs or expenses incurred by Tenant in connection with its
proposed subletting or assignment.

     (c) If Tenant complies with the provisions of this section and Landlord
does not exercise an option provided to Landlord under lb) above, Landlord's
consent to a proposed assignment or sublet shall not be unreasonably withheld,
conditioned or delayed. Without limiting the other instances in which it may be
reasonable for Landlord to witlihold its consent to an assignment or subletting,
Landlord and Tenant acknowledge that is shall be reasonable for Landlord to
williliold its consent in any of the following instances: 

          (1) the proposed assignee or stiblessee is a governmental agency;

          (2) in Landlord's reasonable judgment, the use of the premises by the
proposed assignee or sublessee would entail any alterations which would lessen
the value of the leaschold improvements in the premises, or would require
material increased services by Landlord;

          (3) in Landlord's reasonablejudgment, the financial wonh of the
proposed assignee or sublessce does not meet the credit standards applied by
Landlord for other tenants under leases with comparable terms;

          (4) in Landlord's reasonable judgment, the character, reputation or
business of tenant is inconsistent with the desired tenant-mix or the quality of
other tenancies in the Building;

          (5) Landlord has received from any prior lessor to the proposed
assignee or subtenant a negative report concerning such prior lessor's
experience with the proposed assignee or subtenant;

          (6) Landlord has experienced previous defaults by or is in litigation
with the proposed assignee or subtenant;

          (7) (i) the proposed assignee's or subtenant's anticipated use of the
premises involves the generation, storage, use, treatment or disposal of
Hazardous Material; (ii) the proposed assignee or subtenant has been required by
any prior landlord,

                                       19

<PAGE>



lender or governmental authority to take remedial action in connection with
Hazardous Material contaminating a property if the contamination resulted from
such assignee's or subtenant's actions or use of the property in question; or
(iii) the proposed assignee or subtenant is subject to an enforcement order
issued by any governmental authority in connection with the use, disposal or
storage of a Hazardous Material;

          (8) the use of the premises by the proposed assignee or subtenant will
violate any applicable law, ordinance or regulation;

          (9) the proposed assignment or sublease will create a vacancy
elsewhere in the Building;

          (10) the proposed assignee or subtenant, or any person that, directly
or indirectly, controls, is controlled by, or is under conunon control with the
proposed assignee or subtenant, is then an occupant of the Building;

          (11) the proposed assignee or subtenant is a person with whom Landlord
is negotiating to lease space in the Building;

          (12) the proposed assignment or sublease fails to include all of the
terms and provisions required to be included therein pursuant to this paragraph;

          (13) Tenant is in default of any obligation of Tenant under this
Lease, or Tenant has defaulted under this Lease on three (3) or more occasions
during the twelve (I 2) months preceding the date that Tenant shall request
consent; or

          (14) in the case of a subletting of less that the entire premises, if
the subletting wou Id resu It in the division of the premises into more than two
subparcels or would require access to be provided through space leased or held
for lease to another tenant or improvements to be made outside of the premises.

     (d) in the case of an assignment, 100% of any sums or other economic
consideration received by Tenant as a result of such assignment shall be paid to
Landlord after first deducting the unamortized cost of leasehold improvements
paid by Tenant, and the cost of any real estate commissions incurred in
connection with such assignment. In the case of a subletting, 100% of any sum or
economic consideration received by Tenant as a result of such subletting shall
be paid to Landlord after first deducting (1) the rental due hereunder, prorated
to reflect only rental allocable to the sublet portion of the premises, and (2)
the cost of any real estate commissions incurred in connection with such
subletting, amortized over the term of the sublease. Upon Landiord's request,
Tenant shall assign to Landlord all amounts to be paid to Tenant by any such
subtenant or assignee and shall direct such subtenant or assignee to pay the
same directly to Landlord. 

     (e) Notwithstanding the provisions of sxibparagraphs (a) and lb) above,
Tenant

                                       20

<PAGE>



may assign this Lease or sublet the premises or any portion thereof, without
Landiord's consent, to any corporation which controls, is controlled by or is
tinder common control with Tenant or to any corporation resulting from the
merger or consolidation with Tenant so long as there is no change in control of
Tenant, provided that said assignee assumes, in full, the obligations of Tenant
under this Lease.

     (f) Regardless of Landiord's consent, no subletting, assignment,
hypothecation, license or concession shall release Tenant of Tenant's obligation
or alter the primary liability of Tenant to pay the rental and to perform all
other obligations to be performed by Tenant hereunder. The acceptance of rental
by Landlord from any other person shall not be deemed to be a waiver by Landlord
of any provision hereof Consent to one assignment, subletting, hypothecation,
license or concession agreement shall not be deemed consent to any subsequent
assignment, subletting, hypothecation, license or concession agreement. In the
event of default by any assignee of Tenant or any successor of Tenant in the
performance of any of the terms hereof, Landlord may proceed directly against
Tenant without he necessity of exhausting remedies against such assignee or
successor. Landlord may consent to subsequent assignments or modifications to
this Lease, with assignees of Tenant %without notifying Tenant or any successor
of Tenant, and without obtaining its or their consent thereto and such action
shall not relieve Tenant of liability under this Lease.

     (g) Each transfer, assignment, subletting, license, concession agreement
and hypothecation to which there has been consent or which has been permitted
pursuant to subparagraph (e) above, shall be by an instrument in form
satisfactory to Landlord and shall be executed by the ttansfcror, assignor,
sublessor, licenser, concessionaire, hypothecator or mortgagor and the
transferee, assignee, sublessce, licensee, concessionaire or mortgagee in each
instance, as the case may be; and each transferee, assignee or sublessee shall
agree in writing t-or the benefit of Landlord to assume, to be bound by, and to
perform the terms, covenants and conditions of this Lease to be done, kept and
performed by Tenant. One executed copy of such instrument shall be delivered to
Landlord. No sublessee other than Landlord shall have the right further to
sublet.

     (h) In the event Tenant shall assign or sublet the premises or request
Landiord's consent to a proposed assignment, subletting, or other act, then
Tenant shall pay (1) to Landlord and administrative fee in the sum of $300 and
(ii) Landlord's reasonable attorneys' fees incurred in connection therewith.

     (i) For the purpose of this Lease, a transfer of more than (i) 50% of the
partnership interest in Tenant if Tenant is a partnership, or (ii) 50% of the
outstanding voting stock if Tenant is a corporation, shall constitute an
assignment of this Lease. Notwithstanding anything to the contrary in the Lease,
the terms of this Section 19 (i) shall not apply to Tenant if Tenant is a
publicly traded company. Further, an initial public trading of Tonant's stock
shall not constitute an assignment or transfer for purposes of this

                                       21

<PAGE>



Section 19 (i).

20.  Rules and Regulations. Tenant shall faithfully observe and comply with the
rules and regulations a"aclied to this Lease as Exhibit C and, after notice
thereof, all reasonable modifications thereof and additions thereto from time to
time promulgated in writing by Landlord. Landlord shall not be responsible to
Tenant for the nonperformance by any other tenant or occupant of the Building of
any of such rules and regulations.

21.  Landlord's Access. Landlord may enter the premises at reasonable hours to
(1) inspect he same; (2) exhibit the same to prospective purchasers, mortgagees
or tenants; (3) determine whether Tenant is complying with all its obligations
hereunder; (4) supply any service to be provided by Landlord to Tenant
hereunder; (5) post notices of non-responsibility; (6) post "to Lease" signs of
reasonable size upon the premises during the last 90 day of the term hereof; and
(7) make repairs required of Landlord under the terms hereof or repairs to any
adjoining space or utility services or make repairs, alterations or additions to
the premises or any other portion of the Building, provided, however, that all
such work shall be done as promptly as reasonably possible and so as to cause as
little interference to Tenant as reasonably possible and that any repairs,
alterations, or additions to the premises shall, when completed, not materially
and adversely affect Tenant's use of the premises. Tenant hereby waives any
claim for damages for any injury or inconvenience to or interference with
Tenant's business and any loss of occupancy or quiet enjoyment of the premises
Landlord shall at all times have and retain a key with which to unlock all of
the doors in, on or about the premises (excluding Tenant's vaults, safes and
similar areas designated in writing by Tenant in advance) and Landlord shall
have the right to use any and all means which Landlord may deem proper to open
such doors in an emergency in order to obtain entry to the premises. Any entry
to the premises obtained by Landlord by any of such means, or otherwise, shall
not under any circumstances be construed or deemed to be a forcible or unlawful
entry into or a detainer of the premises or an eviction, actual or constructive,
of tenant from the premises, or any portion thereof.

22.  Default. If: (1) Tenant shall fail to pay any rent or other sum payable
hereunder for a period of 5 days after written notice from Landlord and the same
is due; (2) Tenant shall fail to observe, keep or perform any of the other
terms, covenants, agreements or conditions contained herein or in the rules and
regulations to be observed or performed by Tenant and such default continues for
a period of 30 days after notice by Landlord or beyond the time reasonably
necessary for cure if such default is of a nature to require in excess of 30
days to remedy-, (3) Tenant shall become banknipt or insolvent or make a
transfer if fraud of creditors, or make an assignment for the benefit of
creditors, or take or have taken against Tenant any proceedings of any kind
under any provision of the Federal Bankruptcy Act or under any other insolvency,
bankruptcy or reorganization act or, in the event any such proceedings are
involuntary, such involuntary proceedings are not dismissed within 60 days
thereafter-, (4) a receiver is appointed for a substantial part of

                                       22

<PAGE>



the assets of Tenant; (5) Tenant shall vacate or abandon the premises; or (6)
this Lease or any interest of Tenant hereunder shall be levied upon by any
attachment or execution, then any such event shall constitute an event of
default by Tenant. Upon the occurrence of any event of default by Tenant
hereunder, Landlord may, at its option and without any further notice or demand,
in addition to 3ny other rights and remedies given hereunder or by law, do any
of the following:

     (a) Landlord shall have the right, so long as such default continues, to
give notice of termination to Tenant. On the date specified in such notice
(which shall not be less than 3 days after the giving of such notice) this Lease
shall terminate.

     (b) In the event of any such termination of this Lease, Landlord may then
or at any time thereafter, re-enter the premises and remove therefrom all
persons and property and again repossess and enjoy the premises, without
prejudice to any other remedies that Landlord may have by reason of Tenant's
default or of such termination.

     (c) The amount of damages which Landlord may recover in event of such
termination shall include, without limitation, (1) the amount at the time of
award of (A) unpaid rental earned and other sums owed by Tenant to Landlord
hereunder, as of the time of termination, together with interest thereon as
provided on this Lease, (B) the amount by which the unpaid rent which would have
been earned during the period from termination until the award exceeds the
amount of such rental loss that Tenant proves could be reasonably avoided and
(C) the amount by which the unpaid rent for the balance of the term after the
time of the award exceeds the amount of such rental loss that Tenant proves
could be reasonably avoided (computed by discounting such amount at the discount
rate of the Federal Reserve Bank of San Francisco at the time of award plus one
percent), (2) all legal expenses and other related costs incurred by Landlord
following Tenant's default including reasonable attorneys' fees incurred in
collecting any amount owed hereunder, (3) all costs incurred by Landlord in
restoring the premises to good order and condition, or in remodeling, renovating
or otherwise preparing tile premises for relenting, and (4) all costs (including
without limitation any brokerage commissions) incurred by Landlord in teletting
the premises. For the purpose o(determining the unpaid rent in the event of a
termination of this Lease, the monthly rent reserved in this Lease shall be
deemed to be the sum of (1) the minimum rent and (2) the Operating Expense
charge and any other amounts last payable by Tenant pursuant to Paragraphs 5, 6,
7, 10, 13, and 16 above.

     (d) Following tile termination of this Lease or Tenant's right of
possession hereunder (or upon Tenant's failure to remove its personal property
from the premises after the expiration of the term of the Lease), Landlord may
remove its personal property from the premises after the expiration of the term
of such property in a public or private warehouse or elsewhere at the sole cost
and expense of Tenant; such warehouser shall have all rights and remedies
provided by law against Tenant as the owner of such

                                       23

<PAGE>



property. In addition, in the event that Tenant shall not immediately pay the
cost of storage of such property after the same has been stored for a period of
30 days or more, Landlord may sell any or all thereof at a public or private
sale in such manner and at such times and places as Landlord in its sole
discretion may deem proper, without notice to or demand upon Tenant. Tenant
waives all claims for damages that may be caused by Landlord's removing or
storing or selling the property as herein provided, and Tenants shall indemnify
and hold Landlord free and harmless for, from and against any and all losses,
costs and damages, including without limitation all costs of court and
attorneys' fees of Landlord occasioned thereby.

     (e) Landlord shall have the right to cause a receiver to be appointed in
any action against Tenant to take possession of the premises and to collect the
rents or profits derived therefrom. The appointment of such receiver shall not
constitute an election on the part oflandiord to terminate this Lease unless
notice of such intention is given to Tenant.

     (f) Even though Tenant has breached this Lease and/or abandoned tile
premises, this Lease shall continue in effect for so long as Landlord does not
terminate this Lease, and Landlord may enforce all its rights and remedies under
this Lease, including the right to recover the rental in periodic actions as it
becomes due under this Lease. In such event, Landlord may re-enter the premises
and remove all persons and property if the premises have not been vacated, using
any available summary proceedings, without such re-entry or removal being deemed
a termination or acceptance of surrender of this Lease. Landlord may then elect
to relet the premises for the account of tenant for a period which may extend
beyond the term hereof, and upon such other ten- ns as Landlord may reasonably
deem appropriate. Tenant shall reimburse Landlord upon demand for all costs
incurred by Landlord in connection with such reletting, including, without
limitation, necessary restoration, renovation, or improvement costs, reasonable
attorneys' fees and brokerage commissions. The proceed of such reletting shall
be applied first to any sums then due and payable Landlord from Tenant,
including the reimbursement described above. In balance, if any, shall be
applied to the payment of future rent as it becomes due hereunder.

23.  Landlord's Right to Cure Default. All covenants and agreements to be
performed by Tenant under any of the terms of this Lease shall be at its sole
cost and expense and without any abatement of rent. If Tenant shall fail to pay
any sum of money, other than rent, required to be paid by it hereunder or shall
fail to perform any other act on its part to be performed hereunder and such
failure shall have become an event of default tinder paragraph 22 above,
Landlord may, but shall not be obligated to do so, and without waiving or
releasing Tenant from any obligations of tenant, make any such payment or
perform any such other act on Tenant's part to be made or performed as in this
Lease provided. All sums so paid by Landlord and all necessary incidental costs
shall be deemed additional rent hereunder and shall be payable to Landlord on
demand together

                                       24

<PAGE>



with Default Interest from the date of expenditure by Landlord until repaid.

24.  Attorneys' Fees. If as a result of any breach or default in the performance
of any of the provisions of this Lease or in order to enforce its rights
hereunder, Landlord uses the services of an attorney in a nonjudicial action, at
trial, or upon an appeal, to secure compliance with such provisions or recover
damages therefor, to exercise such rights, or to terminate this Lease or evict
Tenant, Tenant shall reimburse Landlord upon demand for any and 211 reasonable
attorneys' fees and expenses so incurred by Landlord. If tenant shall be the
prevailing party in any legal action brought by Landlord against Tenant, Tenant
shall be entitled to recover for tile fees of its attorneys in such amount as
the court may adjudge reasonable. Tenant, to the extent permitted by law, does
hereby waive any further right to attorneys' fees provided by applicable state
or federal law.

25.  Subordination.

     (a) This Lease shall be subject and subordinated at all times to all ground
or underlying leases which may hereafter be executed affecting the Building, and
the lien of all mortgages and deeds of trust in any amount or amounts whatsoever
now or hereafter placed on or against the Building or on or against Landlord's
interest or estate therein or on or against all such ground or underlying
leases, all without the necessity of having further instruments executed on the
part of Tenant to effectuate such subordination. Notwithstanding the foregoing
(1) in the event of termination for any reason whatsoever of any ground or
underlying lease hereafter executed, this Lease shall not be barred, terminated,
cut off or foreclosed nor shall the rights and possession of tenant hereunder be
disturbed if tenant shall not then be in default in the payment of rental or
other sums or be otherwise in default under the terms of this Lease, and Tenant
shall attorn to the Landlord of any such ground or underlying Lease, or, if
requested, enter into a new lease for the balance of the original or extended
term hereof then remaining upon the same terms and provisions as are in this
Lease contained; (2) in the event of a foreclosure of any such mortgage or deed
of trust hereafter executed or of any other action or proceeding for the
enforcement thereof, or of any sale thereunder, this Lease will not be barred,
terminated, cut off or foreclosed nor will the rights and possession oftenant
thereunder be disturbed if Tenant shall not then be in default in the payment of
rental or other sums or be otherwise in default tinder the terms of this Lease,
and Tenant shall attom to the purchaser at such foreclosure, sale or other
action or proceeding; and (3) Tenant agrees to execute and deliver upon demand
such further reasonable instruments evidencing such subordination of this lease,
ground or underlying leases, and to the lien of any such mortgages or deed of
mist as may reasonably be required by Landlord. Tenant's covenant to subordinate
this Lease to ground or underlying leases, and mortgages or deeds of trust
hereafter executed is conditioned upon each such senior instrument containing
the commitments specified in the preceding clauses (1) and (2); and (4) Tenant
further waives the provisions of any statute of rule of law, now or hereafter in

                                       25

<PAGE>



effect, which may give or purport to give Tenant any right or election to
terminate or otherwise adversely affect the Lease and the obligations of Tenant
hereunder in the event of such foreclosure or sale.

     (b) Tenant shall mail by certified or registered post, return receipt
requested, or personally deliver to any Landlord under a ground lease or
mortgage lender a duplicate copy of any and all notices in writing which Tenant
may from time to time give to or serve upon Landlord pursuant of the provisions
of this Lease, and such copy shall be mailed or delivered at, or as near as
possible to, the same time such notices are given or served by Tenant. No notice
by Tenant to Landlord hereunder shall be deemed to have been given unless and
until a copy thereof shall have been so mailed or delivered to any ground lease
landlord or mortgage lender. Upon the execution of any ground lease or mortgage,
Tenant shall be informed in writing of the vesting of the interest evidenced by
the ground lease or mortgage.

     (c) Should any event of default by Landlord under this Lease occur, any
ground lease landlord or mortgage lender shall have 30 days after receipt of
written notice from Tenant sening forth the nature of such event of default
within which to remedy the default; provided that in the case of a default which
cannot with due diligence be cured within such 30-day period, the ground lease
landlord or mortgage lender shall have the additional time reasonably necessary
to accomplish the cure, provided that (i) it has conunenced the curing within
such 30 days and (ii) thereafter diligently prosecutes the cure to completion.
If the default is such that the possession of the premises may be reasonably
necessary to remedy the default, any ground lease landlord or mortgage lender
shall have a reasonable additional time after the expiration of such 30-day
period within which to remedy such default, provided that (i) it shall have
fully cured any default in the payment of any monetary obligations of Landlord
under this Lease within 30 day period and shall continue to pay currently such
monetary obligations as and when the same are due and (ii) it shall have
acquired Landiord's estate or commenced foreclosure or other appropriate
proceedings within such period, or prior thereto, and is diligently prosecuting
any such proceedings.

26.  No Merger. The voluntary or other surrender of this Lease by Tenant, or a
mutual cancellation thereof, shall not work a merger, and shall, at the option
of Landlord, terminate all or any existing subleases or stibtenancies, or may,
at the option of Landlord. operate as a assignment to it of any or all such
subleases or subtenancies.

27.  Sale by Landlord. In the event the original Landlord hereunder, or any
successor owner of the Building, shall sell or convey the Building, all
liabilities and obligations on the part of the original Landlord, or such
successor owner, under this Lease accruing thereafter shall terminate, and
thereupon all such liabilities and obligations shall be binding upon the new
owner. Tenant agrees to attorn to such new owner.


                                       26

<PAGE>



28.  Estoppel Certificate. At any time from time to time, but on not less than
10 days prior notice by Landlord, Tenant will execute, acknowledge and deliver
to Landlord, promptly upon request, a certificate certifying (a) that this Lease
is unmodified and in full force and effect (or, if there have been
modifications, that his Lease is in full force andeffect, as modified, and
stating the date and nature of each such modification), lb) the date, if any, to
which rental and other sums payable hereunder have been paid, (c) that no notice
has been received by tenant of any default which has not been cured, except as
to defaults specified in said certificate, and (d) such other matters as may be
reasonably requested by Landlord. Tenant hereby appoints Landlord as Tenant's
atiomey-in-fact to execute, acknowledge and deliver such certificate if Tenant
shall fail to do so within the above-prescribed time penod. Any such certificate
may be relied upon by any prospective purchaser, mortgagee of beneficiary under
any deed or trust of the Building.

29.  Holdover Tenancy. If, without objection by Landlord, Tenant holds
possession of the premises after expiration of the term of this Lease, Tenant
shall become a Tenant from month to month upon all of the terms specified in
ibis Lease as applicable immediately prior to expiration of such term, except
that minimum rent will be 150% of that applicable immediately prior to
expiration of such term. Each party shall give the other notice of its intention
to terminate such tenancy at least one month prior to the date of such
termination.

30.  Building Security.

     (a) Landlord shall have the right, but not the obligation, from time to
time to adopt such policies, procedures and programs as it shall deem necessary
or appropriate for the security of the Building, and Tenant shall cooperate with
Landlord in tile enforcement of the policies, procedures and programs adopted by
Landlord.

     (b) Without limiting the generality of subparagraph (a) above, Landlord
reserves the right to exclude from the 13iiilding between the hours of 6 p.m.
and 7 a.m. and at all hours on Saturdays, Sundays and holidays all persons who
do not present a valid pass to the Building. If Landlord does elect to adopt
such pass system, Landlord shall fumish passes to persons for whom Tenant
requests the same in writing, and Tenant shall be responsible for all person for
whom it request passes and shall be liable to Landlord for all acts of such
persons. Landlord shall in no case be liable for damages for any error with
regard to the admission to or exclusion form the Building of any person. In case
of invasion, mob, riot, public demonstration or other circumstances rendering
such action advisable in Landiord's opinion, Landlord reserves the right to
prevent access to the Bkii[ding during the continuance of the same by such
action as Landlord may deem appropriate, including closing doors.

     (c) In the event of any picketing, public demonstration or other threat to
the security of the Building that is directly attributable to Tenant, Tenant
shall reimburse

                                       27

<PAGE>



Landlord for any costs incurred by Landlord in connection with such picketing,
demonstration or other threat in order to protect the security of the Building.

31.  Parking.

     (a) Any parking areas appurtenant or within the Building, or designated
portions thereof, shall be available for the use of Tenants of the Building,
and, to the extent designated by Landlord, the employees, agents, customers and
invitees of said tenants, subject to the rules, regulations, charges, and rates
as set forth by the Landlord from time to time; provided, however, that Landlord
may restrict to certain portions of the parking areas, parking for Tenant or
other tenants of the Building and their employees and agents, and may designate
other areas to be used only by customers and invitees of Tenants of the
Building. Notwithstanding anything herein contained, Landlord reserves the right
from time to time to make reasonable changes in ,additions to, and deletions
from parking areas as now or hereafter constituted.

     (b) Landlord, or its agents, shall have the right to cause to be removed
any cars, trucks, trailers or other motorized or nonmotorized vehicles of
tenants, its employees, agents, guests or invitees that are parked in violation
hereof or in violation of regulations of the Building, without liability of any
kind to Landlord, its agents or employees, and Tenant agrees to hold Landlord
harmless from and defend it against any and all claims, losses, or damages and
demands asserted or arising in respect to or in connection with the removal of
any such vehicles as aforesaid. Tenant shall from time to time upon request of
Landlord supply Landlord with a list of license plate numbers of all vehicles
owned by its employees and agents who are to have parking privileges hereunder.
Landlord may, as a part of the regulations promulgated by it for the use of the
parking areas, require that Tenant cause any identification sticker issued by
Landlord to be affixed to the bumpers or other designated location on all
vehicles of tenant and its employees and agents who are authorized to park in
the parking areas.

32.  Security Deposit. Tenant has deposited with Landlord the Security Deposit
sum specified in the Basic Lease Information (the 'Deposit'). The Deposit shall
be held by Landlord as security for the faithful performance by Tenant of all of
the provisions of the Lease to be performed or observed by Tenant. If Tenant
fails to pay rent or other charges due hereunder, or otherwise defaults with
respect to any provision of this Lease, Landlord may use, apply or retain all or
any portion of the Deposit for the payment of any rent or other charge in
default or for reason of Tenant's default, or compensate Landlord for any loss
or damage which Landlord may suffer thereby. If Landlord so uses or applies all
or any portion of the Deposit, Tenant shall within ten (10) days after demand
therefor deposit cash with Landlord in an amount sufficient to restore the
Deposit to the full amount thereof and Tenant's failure to do so shall be a
material breach of this Lease.



                                     28

<PAGE>



Landlord shall not be required to keep the Deposit separate from its general
accounts. If Tenant performs all of Tenant's obligations hereunder, the Deposit,
or so much thereof as has not theretofore been applied by Landlord, shall be
returned, without payment of interest or other increment for its use, to Tenant
(or, at Landlord's option, to the last assignee, if any, of Tenant's interest
hereunder) at the expiration of the Term hereof, and after Tenant has vacated
the Premises. No trust relationship is created herein between Landlord and
Tenant with respect to the Deposit.

33.  No Partnership. It is expressly understood that Landlord does not, in any
way or for any purpose, become a partner of Tenant in the conduct of its
business, or otherwise, or joint vent-,ire or a member of a joint enterprise
with Tenant.

34.  Recording. Tenant shall not record this Lease without the prior written
consent of Landlord.

35.  Modification and Financing Conditions. Landlord has obtained financing and
may seek to obtain further financing for the Building, portions thereof, and the
operation thereof, secured by mortgages or deeds of trust encumbering the
Building. Landlord may also elect to enter into a ground lease of the Building.
If any mortgage lender should require, as a condition to such financing, or
pursuant to rights of approval set forth in tile mortgage or deed of trust
encumbering the Building, or if any ground lease should require, as a condition
to such ground lease or pursuant to rights of approval set forth therein, any
modification of the terms or conditions of this Lease, Tenant agrees to execute
such modification or amendment, provided that, such modification or amendment
(a) shall not increase the rental or Tenant's share of any costs in addition to
minimum rent or increase any other Tenant obligation or reduce any right under
the terms hereof which are not provided for hereunder, (b) shall not materially
interfere with Tenant's use or occupancy, and (c) if requested by a mortgage
lender with a lien on the Building or a ground lessee pursuant to a ground lease
effective as of the date hereof, shall have been requested prior to 30 days
after the date hereof. If Tenant should refuse to execute any modifications so
required within 10 days after receipt of same, Landlord shall have the right by
notice to Tenant to cancel this Lease, and upon such cancellation Landlord shall
refund any unearned rental or security deposit, and neither party shall have any
liability thereafter accruing under this Lease, except as provided in paragraph
15 above.

36.  Waiver. The waiver by Landlord of any term, covenant, agreement or
condition herein contained shall not be deemed to be a waiver of any other then
existing or subsequent breach of the same of any other term, covenant, agreement
or condition herein contained. Nor shall any custom or practice which may
develop between the parties in the administration of the terms hereof be
construed to waive or to lessen the right of the Landlord to insist upon the
performance by Tenant in strict accordance with such terms. The subsequent
acceptance of rent or any other sum of money or other performance hereunder by
Landlord shall not be deemed to be waiver of any preceding

                                       29

<PAGE>



breach by Tenant of any term, covenant, agreement or condition of this Lease,
other than the failure of Tenant to pay tile particular rent or other sum so
accepted, regardless of Landlord's knowledge of such preceding breach at the
time of acceptance of such rent or other sum or performance.

37.  Notices and Consents. All notices, demand, consents or approval which may
be given by either parry to the other hereunder shall be in writing and shall be
deemed to have been fully given when deposited in the United States mail,
registered or certified, return receipt requested, postage prepaid, and
addressed as follows: to Tenant at the address specified in the Basic Lease
Information, or to such other place as Tenant may from time to time designate in
a notice to Landlord; to Landlord at the address specified in the Basic Lease
Information, or to such place as Landlord may from time to time designate in a
notice to Tenant; or, in case of Tenant, delivered to Tenant at the premises.
Tenant hereby appoints as its agent to receive the service of all dispossessory
or restraint proceedings and notices thereunder and person or persons in charge
of our occupying the premises at the time, and, if no person shall be in charge
of or occupying the same, then such service may be made by attaching tile same
on the main entrance of the premises.

38.  Complete Agreement. There are no oral agreements between Landlord and
Tenant affecting this Lease, and this Lease supersedes and cancels any and all
previous negotiation, arrangements, brochures, agreements and understandings, if
any, between Landlord and Tenant or displayed by Landlord to Tenant with respect
tot the subject matter of this Lease or the Building. 'Mere are no
representations between Landlord and Tenant other than those contained in this
Lease and all reliance with respect to any representations is solely upon the
representations contained herein. This lease may not be amended or modified in
any respect whatsoever except by an instrument in writing signed by Landlord and
Tenant.

39.  Corporate Authority. If Tenant signs as a corporation, each of the person
executing this Lease on behalf of the Tenant does hereby covenant and warrant
that Tenant is a 4uly authorized and existing corporation, that Tenant is
qualified to do business in the State in which the Building s situated, that the
corporation has full right and authority to enter into this Lease. and that each
person signing on behalf of the corporation is authorized to do so.

40.  Limits to Tenant's Remedy. If Landlord should default in the performance of
its obligations hereunder, it is understood and agreed that any claims by Tenant
against Landlord shall be limited in recourse to Landlord's interest in the
Building. Tenant expressly waives any and all rights otherwise to proceed on a
recourse basis against Landlord, tile individual partners of Landlord, or the
officers, directors and shareholders of any corporate partner of Landlord.

41.  Brokers. Tenant warrants that it has had no dealings with any real estate
broker or

                                       30

<PAGE>



agents in connection with tile location or negotiation of this Lease other than
any broker or agent identified in paragraph 45 below.

42.  No Light and Air Easement. No diminution or shutting off of light, air, or
view by any structure which may be erected on land adjacent to or in the
vicinity of the Building shall in any way affect this Lease or impose any
liability on Landlord.

43.  Miscellaneous. The words "Landlord" and "Tenant" as used herein shall
include the plural as well as the singular. If there be more that one Tenant,
tile obligations hereunder imposed upon Tenant shall be joint and several. Time
is of the essence of this Lease and each and all of its provisions. Submission
of this instrument for examination or signature by Tenant does not constitute a
reservation of or option for lease, and it is not effective as a lease or
otherwise until execution and delivery by both Landlord and Tenant. The terms,
covenants, agreements and conditions herein contained shall, subject to the
provisions as to assignment, apply to and bind the heirs, successors, executors,
administrators and assigns of the parties hereto. lf any provisions of this
Lease shall be determined to be illegal or unenforceable, such determination
shall not affect any other provisions of this Lease and all such other
provisions shall remain in full force and effect. Landlord and Tenant agree that
each parry and its counsel have reviewed this Lease and that the normal rule of
construction to the effect that ambiguities are to be resolved against the
drafting party is not appropriate and shall be governed by and construed
pursuant to the laws of the State in which the Building is situated.



                                       31

<PAGE>



                                    Exhibit A

                                    Schedule A             31885-D
                                    Page 2

5.   THE LAND REFERRED TO IN THIS POLICY IS DESCRIBED AS FOLLOWS:

     That portion of the southeast quarter of the northeast quarter of
     Section 29, Township 25 North, Range 5 East, W.M., in King County, 
     Washington, described as follows:

     Commencing at the southwest corner of the southeast quarter of the
     northeast quarter of said Section 29;
     thence south 88'30'24' east along the south line of said
     subdivision 50.00 feet to the easterly margin of 112th
     Avenue Northeast (S.S.H. Number 2-A) and the point of beginning;
     thence north 01'16'26" east along said easterly margin 859.41 feet; 
     thence south 88'43'37" east 111.50 feet; thence south 47'40'00" east 
     70.00 feet;
     thence south 77'00100' east 167.42 feet to the westerly margin of 
     Interstate 405 (P.S.H. Number 1-R.E.);
     thence southerly along said westerly margin by the following courses and 
     distances:

                  south 02'45'43' west 212.79 feet;
                  south 09'19'44' east 305.00 feet;
                  south 01'03'36" west 268.35 feet to the south line of said
                  southeast quarter of the northeast quarter of Section 29;

     thence north 88'30'24" west along said line 379.81 feet to the point of
     beginning;

     ALSO known as Lot Number 3 of City of Bellevue Short Plat Number 79-20, as
     recorded under Recording Number 7905221049, being a revision of City of
     Bellevue Short Plat Numbers 79-02 and 78-63, as recorded under Recording
     Numbers 7901160937 and 7809150288, respectively.


                                       32

<PAGE>



                                    EXHIBIT C

                              Rules and Regulations

1.   The sidewalks, halls, passages, exists, entrances, elevators and stairways
of the Building shall not be obstructed by any of the Tenants or used by them
for any purpose other than for ingress to and egress from their respective
premises. The halls, passages, exists, entrances, elevators, and stairways are
not for the general public, and Landlord shall in all cases retain the right to
control and prevent access thereto of all persons whose presence in the judgment
of Landlord would be prejudicial to the safety, character, reputation and
interests of the Building and its Tenants, provided that nothing herein
contained shall be construed to prevent such access to persons with whom any
Tenant normally deals in the ordinary course of its business, unless such
persons are engaged in illegal activities. No Tenant and no employee or invitee
of any Tenant shall go upon the roof of the Building.

2.   No sign, placard, picture, name, advertisement or notice visible from the
exterior of any Tenant's premises shall be inscribed, painted, affixed or
otherwise displayed by any Tenant on any part of the Building without the prior
written consent of Landlord. Landlord will adapt and furnish to Tenant general
guidelines relating to signs inside tile Building on the office floors. Tenant
agrees to conform to such guidelines, but may request approval of Landlord for
modifications, which approval will not be unreasonably withheld. All approved
signs or lettering on doors shall be printed, painted, affixed or inscribed at
the expense of the Tenant by a person approved by Landlord, which approval will
not be unreasonably withheld. Material visible from outside the Building will
not be permitted.

3.   No Tenant shall employ any person or persons other than the janitor of
Landlord for the purpose of cleaning the premises, unless other wise agreed to
by Landlord in writing. Except with the written consent of Landlord, no person
or persons other than those approved by Landlord shall be permitted to enter the
Building for tile purpose of cleaning the same. No Tenant shall cause any
unnecessary labor by reason of such Tenant's carelessness or indifference in
tile preservation of good order and cleanliness. Janitor service will not be
furnished on nights when rooms are occupied after 9:30 P.M. unless, by agreement
in writing, service is extended to a later hour for specifically designated
rooms.

4.   The premises shall not be used for lodging or the storage of merchandise
held for sale to the public, and unless ancillary to a restaurant or other food
service use specifically authorized in the lease of a particular Tenant, no
cooking shall be done or permitted by any Tenant on the premises, except that
the preparation of coffee, tea, hot chocolate and similar items for Tenants and
their employees shall be permitted.

5.   Landlord will furnish each Tenant with two keys free of charge. Landlord
may make reasonable charge for any additional keys. No Tenant shall have any
keys made. No 

                                       33

<PAGE>


Tenant shall alter any lock or install a new or additional lock or any bolt on
any door of its premises without the prior consent of Landlord. Each Tenant
shall in each case furnish Landlord with a key for any such lock. Each Tenant
upon the termination of its tenancy, shall deliver to Landlord all keys to doors
in the Building which shall have been furnished to Tenant. Each Tenant shall see
that the doors of its premises are closed and securely locked at such times as
Tenant's employees leave the premises.

6.   No Tenant shall use or keep in the premises or the Building any kerosene,
gasoline or inflammable or combustible fluid or material or use any method of
heating or air conditioning other than that supplied by Landlord, No Tenant
shall use, keep or permit to be used or kept any foreign or noxious gas or
substance in the premises, or permit or suffer the premises to be occupied or
used in a manner offensive or objectionable to Landlord or other occupants of
the Building by reason of noise, odors, or vibrations. or interfere in any way
with other Tenants or those having business therein.

7.   In the case of invasion, mob, riot, public excitement, or other
circumstances rendering such action advisable in Landlord's opinion, Landlord
reserves the right to prevent access to the Building during the continuance of
the same by such an action as Landlord may deem appropriate. including closing
entrances to the Building.

8.   The toilet rooms, toilets, urinals, wash bowls and other apparatus shall
not be used for any purpose other than that for which they were constructed and
no foreign substance of any kind whatsoever shall be thrown therein. The expense
of any breakage, stoppage of damage resulting from the violation of this rule
shall be borne by the Tenant who, or whose employees or invitees, shall have
caused it.

9.   Except with prior consent of Landlord, no Tenant shall sell, or permit the
sale in the premises or use or permit the use of any common area for the sale of
newspapers, magazines, periodicals, theater tickets or any other goods
merchandise or service. Tenant shall not carry on, or permit or allow any
employee or other person to carry on the business of stenography, typewriting,
or any similar business in or from the premises for the service or accommodation
of occupants of any other portion of the Building, nor shall the premises of any
Tenant be used for manufacturing of any kid, or any business or activity other
than that specifically provided for in such Tenant's lease.

10.  Tenant shall not use any advertising media which may be heard outside of
the premises and Tenant shall not place or permit the placement of any radio or
television, or other communications antenna, loudspeaker, sound amplifier,
phonograph, searchlight, flashing light or other device of any nature on the
roof or outside of the boundaries of the premises (except for Tenant's approved
identification sign or signs) or at any place where the same may be seen or
heard outside of the premises.

11.  All loading and unloading of merchandise, supplies, materials, garbage and
refuse 

                                       34

<PAGE>


shall be made only throng such entryways and elevators and at such times as
Landlord shall designate. In its use of the loading areas the Tenant shall not
obstruct or permit the obstruction of said loading area and at no time shall
park or allow its officers, agents or employees to park vehicles therein except
for leading and unloading.


12.  Landlord shall have the right, exercisable without notice and without
liability to any Tenant, to change the name and street address of the Building.

13.  The freight elevator shall be available for use by all Tenants in the
Building, subject to such reasonable scheduling as Landlord in its discretion
shall deem appropriate. The persons employed to move such equipment in or out of
the Building must be acceptable to Landlord. Landlord shall have the right to
prescribe the weight, size and position of all equipment, materials, furniture
or other property brought into the Building. Heavy objects shall, if considered
necessary by Landlord, stand on wood strips of such thickness as is necessary to
properly distribute the weight. Landlord will not be responsible for loss of or
damage to any such property from any cause, and all damage done to the Building,
by moving or maintaining such property shall be repaired at the expense of
Tenant.

14.  The directory of the Building will be provided for the display of the name
and location of Tenants and a reasonable number of the principal officers,
partners and employees of Tenants, and Landlord reserves the right to exclude
any other names therefrom. Any additional name which Tenant shall desire to
place upon said bulletin board must first be approved by Landlord, and, if so
approved, a charge will be made therefor.

15.  No curtains, draperies, blinds, shutters, shades, screens or other
coverings, hangings or decorations shall be attached to, hung or placed in, or
used in connection with any window of the Building without the prior written
consent of Landlord. In any event, with the prior written consent of Landlord,
such items shall be installed on the office side of Landlord's standard window
covering and shall in no way be visible from the exterior of the Building.

16.  No Tenant shall obtain for use in the premises, ice, drinking water, food
beverage, towel or other similar services, except at such reasonable hours and
under such reasonable regulations as may be fixed by Landlord.

17.  Each Tenant shall see that the doors of its premises are closed and locked
and that all water faucets, water apparatus and utilities are shut of before
Tenant or Tenant's employees leave the premises, so as to prevent waste or
damage, and for any default or carelessness in this regard Tenant shall be
liable for, and shall indemnify Landlord against and hold Landlord harmless for,
from and against all injuries sustained by other tenants or occupants of the
Building or Landlord. On multiple-tenancy floors, all Tenants shall keep the
doors to the Building corridors closed at all times except for ingress and
egress.


                                       35

<PAGE>



18.  No Tenant shall use any portion of the common area for any purpose when the
premises of such Tenant are not open for business or conducting work in
preparation therefor.

19.  The requirements of the Tenants will be attended to only upon application
by telephone or in person at the office of the Building. Employees of Landlord
shall not perform any work or do anything outside of their regular duties unless
under special instructions from Landlord.

20.  Landlord may waive any one or more of these Rules and Regulations for the
benefit of any particular Tenant or Tenants, but no such waiver by Landlord
shall, be construed as a waiver of such Rules and Regulations in favor of any
other Tenant or Tenants, nor prevent Landlord from thereafter enforcing any such
Rules and Regulation against any or all of the Tenants of the Building.

21.  These Rules and Regulations are in addition to and shall not be construed
to in any way modify, alter or amend, in whole or in part, the terms, covenants,
agreements and conditions of any Lease of premises in the Building.

22.  Landlord reserves the right to make such other and reasonable rules and
regulations as in its judgment may from time to time be needed for the safety,
care and cleanliness of the Building, and for the preservation of good order
herein.



                                       36

<PAGE>



                                    EXHIBIT D

                                    Guaranty

                              (Deleted On Purpose)



                                       37

<PAGE>



                                    Exhibit E

                                Other Conditions

Landlord agrees, at its sole cost and expense, to have the carpet in the
Premises shampooed prior to the commencement date of this Lease.

Landlord agrees to paint the entire suite as soon as possible to the building
standard color. To the extent Tenant moves into the space prior to the Suite
being painted, Tenant can either not have specific rooms painted or be fully
responsible for damage to any of Tenant's property due to such painting.

Subject to the rights of any other existing tenants at the Property having prior
rights thereto, to the extent Tenant is not in default under the Lease at the
date of its intent to exercise its right to expand, nor has it been in default
under the Lease more than once previously during the Lease term, Tenant shall be
afforded the right to expand into larger space in the Building, if available,
for the period between 12 and 24 months from the commencement date hereof under
the same terms and conditions of this Lease, except for the base rental which
shall be negotiated between Landlord and Tenant and the term shall be for an
additional three years from the commencement date of the expansion space, by
delivering to Landlord written notification of its intent to exercise such right
to expand not later than 15 days after Landlord has given written notice to
Tenant that such space is available in the Building and no other existing tenant
in the Building has a right to lease such space. If, in the event, Tenant
sublets or assigns its interest in this Lease, in part or whole, at any time
prior the commencement of the any such expansion, or in case of any default of
this Lease by Tenant, this expansion right becomes null and void. Should Tenant
exercise its rights to expand and subsequently does expand within the Building,
Tenant may elect to terminate its leasing of Suite C-242. or it may elect to
keep leasing such Suite, as long as Tenant gives Landlord written notice of such
election prior to the lease commencement date of the expansion space. Notices
not delivered in a timely manner shall be deemed to be conclusive that no
election is made herewith.




- -------------------                                          -------------------
Landlord's Initials                                          Tenant's Initials



                                       38

<PAGE>



                          PARKING RULES AND REGULATIONS


THESE PARKING RULES AND REGULATIONS supplement the parking requirements for
Hidden Valley Office Park. All Tenants, subtenants, employees, guests, invitees
and customers of Tenants must conform to these Parking Rules and Regulations.

1.   To the extent not designated to individual tenants by clearly marked
lettering or numbers on stalls, all uncovered parking spaces are permitted to be
used in common with all Tenant's employees, subtenants, invitees, guests and
customers within the lot of the building which Tenant leases. Parking is not
allowed in areas previously designated for other Tenant use.

2.   During the Term hereof Landlord reserves the sole right to institute
controls of all the parking areas serving the Building and its lot including,
but not limited to, changing the methods by which vehicles are parked,
repainting the parking lot, allocating individual space it designated areas for
specific license plate numbers or named Persons or companies, and allocating
visitor only parking, allocating compact car spaces, and issuing parking decals.

3.   Tenant's rights and privileges under these Parking Rules and Regulations
are conditioned upon the valid existence of the Lease between Landlord and
Tenant at the Property. Tenant's rights hereunder are also conditioned upon
Tenant not being in default of any provision of said lease nor in default of the
any Rules and Regulations which are incorporated therein.

4.   Tenant's rights are further subject to the parking rules and regulations as
follows:

     i. Restriction or Removal. Landlord reserves the right to restrict access
     to the parking areas of the Building, or to have removed from the parking
     areas, at the vehicle owner's expense, any vehicle which, in the opinion of
     the Landlord: (a) represents a hazard to the health and welfare of the
     tenants of the Building or the general public; (b) is not in operable
     condition; (c) contains explosive cargo (other than gasoline or fuel in the
     original equipment vehicle tanks); (d) is leaking fluids of any kind,
     including water; (e) contains illegal goods or contraband; (f) disregards
     the posted speed limit signs or other posted signage; (g) or any other
     vehicle normally not considered acceptable in the area of a high quality
     office park. Landlord shall park only in such areas or spaces as are
     authorized by Landlord. Landlord reserves the right to remove any vehicle
     not authorized to park in the classification of parking area in which it is
     located. Tenant shall ensure strict compliance with parking areas marked
     for the handicapped.

     ii. Speed and Traffic Controls. Tenant, its employees, subtenants invitees,
     guests 

                                       39

<PAGE>


     and customers shall observe all speed and traffic controls established by
     Landlord from time to time.

     iii. Violations. The vehicles of Tenant's who violate any of the provisions
     of these Parking Rules and Regulations may be impounded and/or removed from
     the parking facilities at the option of the Landlord of the lot, or
     casement area, being violated at the expense of the Tenant.

     iv. Changes or Additions to Parking Regulations. Landlord reserves the
     right to from time to time to amcnd, modify, expand or change in any way
     these Parking Rules and Regulations.

5.   Landlord reserves the right to refuse access or to exclude or expel from
said parking areas, to any individual who fails to observe any of the provisions
of these Parking Rules and Regulations.

6.   Landlord reserves the right to make such other and reasonable rules and
regulations as in its judgement may from time to time be needed for the safety,
care and cleanliness of the parking areas, for the preservation of good order
herein, and for the common well being of the Building's tenants.










- -------------------                                          -------------------
Landlord's Initials                                          Tenant's Initials



                                       40


<PAGE>

                                                                   Exhibit 10.8

                                 LEASE AGREEMENT


     THIS LEASE AGREEMENT ("Lease") made as of the 10th day of September, 1998,
between CML Realty Corp. , a New Hampshire corporation with its principal place
of business at 6 Loudon Road, Concord, Merrimack County, New Hampshire,
sometimes hereinafter referred to as "Lessor" and Corel Inc. referred to
hereinafter as "Lessee or "Tenant."

                              W I T N E S S E T H:

     WHEREAS, Lessor currently owns the entire five-story office building
containing 61,956 square feet located at 6 Loudon Road, Concord, New Hampshire,
on a parcel of land consisting of approximately 3.96 acres shown as Lot #2 on a
certain plan entitled "Survey for Earl Flanders, Location Concord, New
Hampshire" dated October 6, 1975, prepared by Rayco Engineering recorded at
Merrimack County Registry of Deeds as Plan #4160 (the "Premises" or "Office
Building");

     WHEREAS, Lessor and Lessee desire that a portion of the 2nd floor of the
office Building be leased to Lessee for its exclusive occupancy ("Lessee's
Quarters"), and that portions of the Office Building shall be used in common by
Lessee and other tenants ("Quarters Used in Common");

     WHEREAS, portions of the Premises have been designed for the parking of
motor vehicles ("Parking Facilities"); and

     WHEREAS, the Lessee's Quarters, Quarters Used in Common and Parking
Facilities are together hereinafter sometimes referred to as the "Leased
Premises".

     NOW THEREFORE, in consideration of the covenants and agreements contained
herein, and other good and valuable consideration, receipt of which is hereby
acknowledged, the parties hereby agree as follows:


     1. TERM The initial term of this Lease shall be for a period of five (5)
years commencing an October 15, 1998 and ending October 31, 2003.


     2. LEASED PREMISES.

          A. LESSEE'S QUARTERS. Lessor does hereby' lease to Lessee for its
          exclusive use the Lessee's Quarters which are designated by red
          diagonal lines on the plan of the 2nd Floor Office Building (the "2nd
          Floor Plan") attached hereto. The area so designated shall be occupied
          exclusively by the Lessee.

                                        1

<PAGE>



          B. QUARTERS USED IN COMMON. Lessor grants; to Lessee the right (i) to
          use in common with Lessor and other tenants, the Quarters Used in
          Common designated by green diagonal lines can the 2nd Floor Plan and
          (ii) to use in common with other tenants, certain portions of the
          Office Building necessary for access to Lessee's Quarters which shall
          include, without limiting the generality of the foregoing, the common
          hallway, stairways, stairwells, lobby, rest room facilities, elevators
          and certain pipes, ducts, conduits and wires.

          C. PARKING FACILITIES. Lessee agrees that its use, and the use of the
          Parking Facilities by its employees, agents and invitees, shall be
          limited solely to the Parking Facility located directly south of the
          office Building and in accordance with the parkings and use
          restrictions generally applicable from time to time to the Parking
          Facility. Lessor shall permit Lessee to use the driveways and walkways
          for access to and from the Office Building.

          D. SMOKING AREA. Lessee agrees that smoking is not permitted on the
          Premises except in certain areas or facilities designated by Lessor
          from time to time ("Smoking Area"). Lessee agrees that its use of the
          Premises, and the use by its employees, agents and invitees, for
          smoking shall be limited solely to the Smoking Area(s) designated from
          time to time.


     3. BASE RENT. Lessee shall pay to Lessor annual rent in the amount of Two
Hundred and Eight Thousand Dollars ($208,000.00) the "Base which Base Rent is
calculated at Sixteen Dollars ($16.00) per square square foot for Thirteen
Thousand (13,000) square feet (except for any fractional months at the beginning
and end of each term which shall be prorated) . Lessee shall make payments in
equal monthly installments of Seventeen Thousand Three Hundred Thirty Three
Dollars and Thirty Three Cents ($17,333.33) in advance on the first day of each
month.


     4. ADDITIONAL RENT. Commencing as of January, 1, 2000 and each year
thereafter on the anniversary date thereof, Lessee agrees to Day Lessor as
additional rent a sum equal to Twenty Percent (20%) of the if any, by which the
cost to Lessor for (i) real estate taxes for the Premises for the tax year
beginning April 1, 1999, and (ii) water, heating, and electricity for the
Premises actually consumed during the calendar year ending on the immediately
preceding December 31, 1999 is greater than the individual cost to the Lessor
for the like items for the tax year beginning April 1, 1995 and for actual
consumption during the calendar year ending December 31, 1998.

     Lessee's share of the additional rent shall be calculated by Lessor for
each rental year as soon as all of the foregoing costs become Lessee's share
shall be prorated in

                                        2

<PAGE>



accordance with the portion of the preceding calendar year during which this
Lease was in effect. Lessee shall pay the additional rent, if applicable, for
each calendar year within thirty (30) days of Lessee's receipt of written notice
by Lessor of the amount of suh additional rent due. Lessor shall provide upon
written request by Lessee copies of the bills for real estate taxes, water,
heating and electricity.


     5. UTILITIES. Subject to reimbursement by Lessee pursuant to Paragraph 4
herein, Lessor shall pay all utility charges with respect to the Lessee's
Quarters and Quarters Used in Common (except telephone charges) and shall at its
expense provide heat, water, interior lighting, air conditioning and electricity
for Lessee's Quarters in quantities reasonably appropriate for standard office
occupancy.


     6. REPAIRS, CLEANING AND OTHER SERVICES. Lessor shall at its own expense
maintain in good repair and state of cleanliness the Office (including without
limitation, the roof, exterior walls, foundation, doors and windows, and utility
systems) the walkwavs, driveways, Parking Facilities and the Quarters Used in
Common, including without limiting the generality of the foregoing, all plumbing
and air conditioning, elevators, and standpipe fire retention system. Lessor
shall maintain the unattended elevator service and remove snow from the Parking
Facilities, driveways and walkways.


     7. CONDITION OF LESSEE'S QUARTERS. Lessee shall at its own expense maintain
the Lessee's Quarters in good repair and state Of cleanliness. Lessee,
accompanied by Lessor, may enter the Lessee's Quarters ii advance of the term of
this Lease for the purpose of inspection. Lessee may install in the Lessee's
Quarters at its own expense fixtures, equipment, window coverings, furnishings
and other effects for the purpose of decorating the interior of the Lessee's
Quarters. Such items that Lessee installs shall remain property of Lessee
throughout the Term of this Lease and upon expiration or termination therein.

     7A. LEASEHOLD IMPROVEMENTS, Lessor shall be responsible for all Leasehold
Improvements as mutually agreed between Lessor and Lessee including but not
limited to:

          - demolition of existing fit-up
          - carpet and base replacement
          - complete construction of office environment as per specifications
          - quality ceiling tiles and appropriate placement of lighting grid 
          - electrical requirements as per specifications
          - HVAC installation and balancing as per specifications 
          - any other work necessary to meet Building Code requirements.
            ("Leasehold Improvements")

                                        3

<PAGE>



     (i)   All Leasehold Improvements must be substantially completed in
           accordance with the specifications mutually agreed upon by both
           parties by no later than October 15, 1998.

     (ii)  Fixturing Period. Lessee may enter premises, rent free, on October 7,
           1998 for installation of voice and data cabling and any other
           equipment to establish a normal working environment.

     (iii) If Leasehold Improvements are not completed by October 15, 1998,
           Lessee has the right to occupy the Lessee's quarters rent free until
           such time as Leasehold Improvements are completed.


     8. RIGHT OF ENTRY. The Lessor may enter Lessee's Quarters for the
reasonable purposes, such as but not limited to, the making of repairs or
renovations to, or the showing of the Lessee's Quarters to prospective tenants,
at any reasonable time during normal business hours and upon 24 hours prior
notice and in a manner that does not interfere with Lessee's use thereof.


     9. RESTRICTIONS. Lessee agrees that it shall not permit any portion of the
Lessee's Quarters to be used (i) so as to cause unreasonable noise or other
nuisance; (ii) so as to consume unreasonable amounts of heat, electricity or
water; or (iii) for the conduct of activities involved in the promotion,
distribution or sale of alcohol, tobacco, gambling or pornography materials or
activities, (iv) for the performance of medical or related procedure for
abortion or euthanasia; (v) for the use, storage, generation, transportation or
disposal of hazardous waste; or (vi) for the conduct of any acts prohibited by
law. Lessee shall not make or permit to be made any structural alteration,
improvement or addition in or to the Lessee's Quarters unless approved in
writing by the Lessor or sublease Lessee's Quarters or assign this, Lease
without Lessor's consent, which consent shall not be unreasonably withheld.
Lessor's consent to any such assignment or sublease shall not be deemed a waiver
with regard to the requirement for its consent to any future assignment or
subleases.


     10. EMINENT DOMAIN OR DESTRUCTION. If the Leased Premises or any
substantial portion thereof shall be taken by the exercise of the right of
eminent domain or shall be destroyed or damaged by fire, water or other
unavoidable casualty or by action of any public authority, or shall suffer any
direct consequential damage for which Lessor and Lessee, or either of them,
shall be entitled to compensation by reason of anything done in pursuance to any
public or other authority during this Lease or any extension thereof, then this
Lease shall terminate at the election of either party hereto which election may
be made, whether or not Lessor's entire interest has been divested; and if
neither party shall

                                        4

<PAGE>



so elect, then in case of such taking, destruction or damage rendering the
premises unfit for use and occupation, a just proportion of said rent according
to the nature and extent of the injury shall be abated until the Leased
Premises, or in the case of a partial taking that portion which may remain
thereof, shall have been put by Lessor at its sole cost and expense in proper
condition for use and occupation. Lessor reserves and excepts all rights to
damages to the Leased Premises by reason of anything lawfully done in pursuance
of any public or other authority; and by way of confirmation, Lessee grants to
Lessor all Lessee's rights to such damages and covenants to execute and deliver
such further instruments of assignment thereof as Lessor may from time to time
request. Lessor or Lessee shall give the other party notice of its decision to
terminate this Lease within ninety (90) days after any such occurrence giving
rise t:o such party's right to so terminate. If the Lease is not terminated,
Lessor shall promptly commence to restore the Leased Premises.


     11. WASTE. Lessee agrees that it will not suffer any waste on the Leased
Premises and that it will peaceably quit and deliver to Lessor, the Lessee's
Quarters when required to do so under the terms of this Lease in as good order
and condition, reasonable wear and tear and unavoidable, casualties excepted, as
the same were delivered to Lessee on the date hereof.


     12. DEFAULT AND TERMINATION. 1) If Lessee shall neglect or fail to make any
rental payment within thirty (30) days after its due date provided that Lessee
is given a reasonable opportunity to cure such default, or if Lessee shall fail
to cure (or to commence to cure) a default in the performance of any of the
other of Lessee's covenants within thirty (30) days after date of notice of such
default by Lessor, or if Lessee, having commenced to cure a default within the
thirty (30) days period, shall fail to complete the curing of the default
without unreasonable delay, Lessor lawfully may immediately or any time
thereafter terminate this agreement. Lessor shall have all rights described
herein and this Lease shall also terminate if (i) the leasehold hereby created
shaIl be taken on execution or by other process of law, (ii) any assignment
shaIl be made of Lessee's property for the benefit of creditors, (iii) a
receiver, guardian, conservator, trustee in bankruptcy or similar officer shall
be appointed by a court of competent jurisdiction to take charge of all or part
of Lessee's property, or (iv) Lessee commits any act of bankruptcy, or if a
petition is filed by Lessee under any bankruptcy or insolvency law and the same
shall not be dismissed within thirty (30) days from the date upon which it is
filed. Lessee covenants that if the Lease is terminated, Lessee shall be liable
to Lessor for payment of a sum equal to the amount of the rent and other
payments called for hereunder for the remainder of the original term and any
extensions thereof, less any amounts received by Lessor as a result of Lessor's
lease of the Lessee's Quarters to a third party. Lessor shall make reasonable
efforts to lease the Lessee's Quarters at rent equal to the prevailing local
raze. In addition, Lessee shall pay Lessor's expenses, including, but not
limited to, court costs and

                                        5

<PAGE>



attorneys' fees, incurred in enforcing any obligation of this Lease with which
Lessee has not complied. 2) Not withstanding any other provisions in this
contract and provided that notice is given no earlier than April 30, 2001,
either party may terminate this agreement by providing a six (6) month prior
written notice to the other party.


     13. INDEMNIFICATION. Lessee shall indemnify and save Lessor harmless from
any and all liability, loss, damage, expenses, causes of action, suits, claims
or judgments arising from loss of life, injury to person or property resulting
from or based upon the actual injury to person or property resulting from or
based upon the actual or alleged use, operation, delivery to or transportation
from any or all of the Leased Premises or their location or condition, except
for any such liability arising from Lessor's acts of negligence; or from any
loss or damage from Lessee's failure to perform its obligations under this
Lease; and shall, at its own cost and expense, defend any and all suits which
may be brought against Lessor, either alone or in conjunction with others, upon
any such liability or claim or claims and shall satisfy, pay and discharge any
and all judgments and fines that may be recovered against Lessor, and pay
Lessor's expenses, including reasonable attorneys' fees, incurred in enforcing
any obligation of this Lease which has not been complied with by Lessee. In
alike manner, the lessor shall indemnify and hold harmless the Lessee from any
and all liability and claims which are the lessor's responsibility and shall pay
all expenses, including reasonable attorney's fees, to defend and or settle
claims which are judged the responsibility of the Lessor.


     14. SUCCESSORS. The conditions, agreements, covenants and provisions
contained herein shall extend to and be binding upon the successors and assigns
of Lessor and Lessee; provided, however, that Lessee shall not assign this Lease
or sublease the Lessee's Quarters without written consent of Lessor, such
consent not to be unreasonably withheld. No "for lease" sign 'or advertisement
of any type shall be placed by Lessee on the Premises without the advance
written consent of Lessor, which consent may be withheld by Lessor in Lessor's
absolute discretion. No sublease rental amount below the then current standard
price quoted by Lessor for comparable space shall be publicized by Lessee or
shall be communicated by Lessee to any real estate agent or broker. Lessor shall
provide to Lessee no less than ninety (90) days written notice of any assignment
of this Lease.


     15 . NOTICES. All notices which may be given under the terms of this
instrument shall be in writing and, if mailed, shall be sent by registered or
certified mail, return receipt required, or by a nationally recognized express
delivery service, to the respective parties at the addresses shown below or to
such other address as the parties have notified each other of by such written
notice or by facsimile, confirmation receipt required.


                                        6

<PAGE>



CML Realty Corp.                        Corel Corporation
ATTENTION: Douglas G. Noyes             ATTENTION: Director, Facility Management
6 Loudon Road, Suite 503                1600 Carling Ave.
Concord, NH 03301                       Ottawa, Ontario K1Z 8R7 Canada
                                        Copy to Corel's Legal Department
Fax No. 603-224-1795                    Fax No. 613-725-2691


     16. ENTIRE AGREEMENT. This Agreement constitutes the entire agreement
between the parties concerning the subject matter and supersedes all prior
statements, representations, discussions, negotiations land and agreements both
oral and written and embodies the entire agreement between Lessor and Lessee and
may not be modified, changed or altered in any way except in writing by
authorized signing officers of each party.


     17. SUBORDINATION TO MORTGAGES. This Lease is subordinated to mortgages in
favor of The Penn Mutual Life Insurance Company and Christian Mutual Life
Insurance Company, as recorded in Merrimack County Registry of Deeds and to any
subsequent mortgages. The Lessee shall, when requested, promptIy execute and
deliver any such instrument as may be reasonably necessary or helpful to
evidence the subordination of this Lease to any such mortgages and/or to permit
additional assignment of Lessor's rights herein. Tenant's subordination and
obligations hereunder shall be conditioned upon Lessor's delivery to tenant of a
non-disturbance agreement from each such mortgage holder.



                                        7

<PAGE>



     IN WITNESS WHEREOF, CML Realty Corp., Lessor, and Corel Inc., Lessee, have
executed this Lease in original counterparts on the date written above.

Witness:                           CML REALTY CORP., LESSOR

                                   By:
                                      ------------------------------------------
                                            Douglas G. Noyes
                                            Its: Duly authorized individual


Witness:                           COREL INC, LESSEE


                                   By:
- -----------------                     ------------------------------------------
                                            Michael O'Reilly
                                            Its: Vice President Finance, CFO,
                                                 Treasurer


                                   By:
- -----------------                     ------------------------------------------
                                            Mitch Desrochers
                                            Its: Controllers


STATE OF NEW HAMPSHIRE
County of Merrimack

     The foregoing instrument was acknowledged before me this14th day of
September, 1998 by Douglas G. Noyes, duly authorized individual of CML Realty
Corp.


                                              ----------------------------------
                                              Justice of the Peace/Notary Public


     The foregoing instrument was acknowledged before me this 10th of September,
1998 by Michael O'Reilly, Vice President Finance, CFO, Treasurer and Mitch
Desrochers, Controller of Corel Inc.


                                              ----------------------------------
                                              Justice of the Peace/Notary Public


                                        8

<PAGE>

                                                                    EXHIBIT 23.1

                             CONSENT OF INDEPENDENT
                               PUBLIC ACCOUNTANTS

         As independent public accountants, we hereby consent to the use of our
reports and to all references to our firm included in or made a part of this 
Registration Statement.

                                                     /s/ Arthur Andersen LLP
                                                     --------------------------
                                                     ARTHUR ANDERSEN LLP
New York, New York
April 14, 1999



<PAGE>

                                                                   EXHIBIT 23.2

               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

The Board of Directors
GraphOn Corporation

We hereby consent to the use of our report, in the Registration Statement on 
Form S-4, dated February 25, 1999, relating to the balance sheets of GraphOn 
Corporation (the Company) as of December 31, 1998 and 1997, and the related 
statements of operations and comprehensive income, stockholders' equity and 
cash flows for each of the three years in the period ended December 31, 1998.

We also consent to the reference to our firm under the heading "Experts" in 
the Registration Statement on Form S-4.


/s/ BDO SEIDMAN, LLP
- -----------------------
BDO Seidman, LLP
San Jose, California
March 29, 1999

<PAGE>

                                                                    EXHIBIT 99.1

                          UNITY FIRST ACQUISITION CORP.
                                245 FIFTH AVENUE
                            NEW YORK, NEW YORK 10016

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The undersigned hereby appoints Lawrence Burstein and Norman Leben as
Proxies, each with the power to appoint his substitute, and hereby authorizes
them, and each of them, to represent and vote, as designated below, all the
shares of common stock of Unity First Acquisition Corp. ("Unity") held of record
by the undersigned on April    , 1999 at the Special Meeting of shareholders to
be held on May   , 1999, or any adjournment thereof.

1. To consider and vote upon a proposal to amend the Certificate of
Incorporation of Unity in the manner described in the Special Meeting Proxy
Statement.

      |_| FOR                     |_| AGAINST                      |_| ABSTAIN

2. To consider and vote upon a proposal to approve and adopt a certain Agreement
and Plan of Merger and Reorganization, dated as of February 1, 1999, between
Unity and GraphOn Corporation, a California corporation ("GraphOn"), providing
for, among other things, the merger of GraphOn with and into Unity, and the
issuance by Unity of approximately 9,730,540 shares of its common stock to
GraphOn's shareholders, all upon the terms and conditions described therein.

      |_| FOR                     |_| AGAINST                      |_| ABSTAIN

3. To approve an adjournment or postponement of the Special Meeting, if
necessary, to permit further solicitation of proxies in the event that there are
not sufficient votes at the Special Meeting to approve Proposal 1, above.

      |_| FOR                     |_| AGAINST                      |_| ABSTAIN

4. To transact any other business incidental to the Special Meeting that may
properly come before such meeting or any adjournment or postponement thereof.

                           (CONTINUED ON REVERSE SIDE)


<PAGE>

         THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER
DIRECTED BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY
WILL BE VOTED FOR PROPOSALS 1, 2 AND 3. A VOTE TO "ABSTAIN" WILL NOT BE COUNTED
TOWARDS THE REQUISITE AFFIRMATIVE VOTE TO APPROVE PROPOSAL 1.

         PLEASE MARK, SIGN, DATE AND RETURN THE PROXY CARD PROMPTLY USING THE
ENCLOSED ENVELOPE.

Please sign exactly as name appears below.

                                    When shares are held by joint tenants, both
                                    should sign. When signing as attorney,
                                    executor, administrator, trustee or
                                    guardian, please give full title as such. If
                                    a corporation, please sign in full corporate
                                    name by the President or other authorized
                                    officer. If a partnership, please sign in
                                    partnership name by authorized person.


                                    ---------------------------------------
                                    Signature


                                    ---------------------------------------
                                    Signature if held jointly.
                                    Dated:  _________, 1999




<PAGE>

                                                                    EXHIBIT 99.2

                               GRAPHON CORPORATION
                               150 HARRISON AVENUE
                           CAMPBELL, CALIFORNIA 95008

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The undersigned hereby appoints Walter Keller and Edmund Becmer as
Proxies, each with the power to appoint his substitute, and hereby authorizes
them, and each of them, to represent and vote, as designated below, all the
shares of common stock of GraphOn Corporation ("GraphOn") held of record by the
undersigned on April   , 1999 at the Special Meeting of shareholders to be held
on April  , 1999, or any adjournment thereof.

1. To consider and vote upon a proposal to approve and adopt a certain Agreement
and Plan of Merger and Reorganization, dated as of February 1, 1999, between
Unity First Acquisition Corp., a Delaware corporation ("Unity"), and GraphOn,
providing for, among other things, the merger of GraphOn with and into Unity,
and the issuance by Unity of approximately 9,730,540 shares of its common stock
to GraphOn's shareholders, all upon the terms and conditions described therein.

      |_| FOR                     |_| AGAINST                      |_| ABSTAIN

2. To approve an adjournment or postponement of the Special Meeting, if
necessary, to permit further solicitation of proxies in the event that there are
not sufficient votes at the Special Meeting to approve Proposal 1, above.

      |_| FOR                     |_| AGAINST                      |_| ABSTAIN

3. To transact any other business incidental to the Special Meeting that may
properly come before such meeting or any adjournment or postponement thereof.

                           (CONTINUED ON REVERSE SIDE)


<PAGE>

         THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER
DIRECTED BY THE UNDERSIGNED SHAREHOLDER. IF NO DIRECTION IS MADE, THIS PROXY
WILL BE VOTED FOR PROPOSALS 1, 2 AND 3. A VOTE TO "ABSTAIN" WILL NOT BE COUNTED
TOWARDS THE REQUISITE AFFIRMATIVE VOTE TO APPROVE PROPOSAL 1.

         PLEASE MARK, SIGN, DATE AND RETURN THE PROXY CARD PROMPTLY USING THE
ENCLOSED ENVELOPE.

         Please sign exactly as name appears below.

                                    When shares are held by joint tenants, both
                                    should sign. When signing as attorney,
                                    executor, administrator, trustee or
                                    guardian, please give full title as such. If
                                    a corporation, please sign in full corporate
                                    name by the President or other authorized
                                    officer. If a partnership, please sign in
                                    partnership name by authorized person.


                                    -----------------------------------------
                                    Signature


                                    -----------------------------------------
                                    Signature if held jointly.
                                    Dated:  ________, 1999






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