COMPURAD INC
8-K, 1997-10-06
COMPUTER PROGRAMMING SERVICES
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT



Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


Date of Report (Date of earliest event reported) September 28, 1997.


                                 COMPURAD, INC.
             (Exact name of registrant as specified in its charter)


         Delaware                   000-21157                    860710268
(State or other jurisdiction       (Commission                 (IRS Employer
     of incorporation)              File Number)             Identification No.)


1350 North Kolb Road, Tucson, Arizona                              85715
(Address of principal executive offices)                         (Zip Code)


        Registrant's telephone number, including area code (520) 298-1000


                                       N/A
          (Former name or former address, if changed since last report)
<PAGE>   2
ITEM 5. OTHER EVENTS

      This Current Report on Form 8-K (the "Report") contains forward-looking
statements within the meaning of Section 27A of the Securities Act of 1933, as
amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The
forward-looking statements contained herein involve risks and uncertainties,
including those relating to the possible inability to complete the merger
transaction involving CompuRAD, Inc. (the "Company") and Lumisys Incorporated, a
Delaware corporation ("Lumisys"), as scheduled, if at all, and those associated
with the ability of the combined company to achieve the anticipated benefits of
the merger. Actual results and developments may differ materially from those
described or incorporated by reference in this Report. For more information
about the Company and risks associated with investing in the Company, investors
are directed to the Company's most recent report on Form 10-KSB as filed with
the Securities and Exchange Commission (the "SEC").

      On September 28, 1997, the Company entered into an Agreement and Plan of
Merger and Reorganization, dated as of September 28, 1997 (the "Reorganization
Agreement"), among the Company, Lumisys and SAC Acquisition Corporation, a 
wholly owned subsidiary of Lumisys ("Merger Sub"). The description contained in
this Item 5 of the transactions contemplated by the Reorganization Agreement is
qualified in its entirety by reference to the full text of the Reorganization
Agreement, a copy of which is attached hereto as Exhibit 2.

      The Reorganization Agreement contemplates that, subject to the
satisfaction of certain conditions set forth therein, including without
limitation the approval and adoption of the Reorganization Agreement by the
requisite vote of the Company's stockholders and the approval of the issuance of
Lumisys common stock in the Merger by Lumisys's stockholders, Merger Sub will be
merged with and into the Company (the "Merger"). As a result of the Merger, the
Company will become a wholly-owned subsidiary of Lumisys. Under the terms of the
Reorganization Agreement, each outstanding share of common stock of the Company
will be converted into 0.928 shares of Lumisys common stock. The Merger is
intended to be a tax-free reorganization under the Internal Revenue Code of
1986, as amended, and is intended to be accounted for as a pooling-of-interests.

      On September 29, 1997 the Company and Lumisys issued a joint press release
relating to the execution of the Reorganization Agreement. A copy of the press
release is attached hereto as Exhibit 99.1 and is incorporated herein by
reference.

      In connection with the execution of the Reorganization Agreement, certain
directors of the Company, who collectively beneficially own approximately 41% of
the outstanding shares of common stock of the Company, entered into Voting
Agreements pursuant to which each such director agreed to vote his shares in
favor of the Merger. The description contained in this Item 5 of the
transactions contemplated by the Voting Agreements is qualified in its entirety
by reference to the full text of the Voting Agreement, the form of which is
attached hereto as Exhibit 99.2


                                       -1-
<PAGE>   3
      A proxy statement relating to the Merger has not yet been filed by the
Company with the SEC. This report shall not constitute the solicitation of any
vote with respect to the Merger.



ITEM 7.     FINANCIAL STATEMENTS AND EXHIBITS

      (c)   EXHIBITS.

            2     Agreement and Plan of Merger and Reorganization dated
                  September 28, 1997.

            99.1  Joint Press Release.

            99.2  Form of Voting Agreement.


                                       -2-
<PAGE>   4
                                    SIGNATURE

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                               COMPURAD, INC.



                               /S/  Phillip Berman
                               -------------------------------------------------
                               Dr. Phillip Berman, Chairman, President and Chief
                               Executive Officer

                               Date:  October 2, 1997


                                       -3-
<PAGE>   5
                                 COMPURAD, INC.

                           CURRENT REPORT ON FORM 8-K

                                INDEX TO EXHIBITS

<TABLE>
<CAPTION>
      Exhibit No.       Description
      -----------       -----------
<S>                     <C>
      2                 Agreement and Plan of Merger and Reorganization dated September
                        28, 1997.

      99.1              Joint Press Release.

      99.2              Form of Voting Agreement.
</TABLE>


                                     -4-

<PAGE>   1
                                                                       EXHIBIT 2


                 AGREEMENT AND PLAN OF MERGER AND REORGANIZATION


                                     among:


                              LUMISYS INCORPORATED
                             a Delaware corporation;


                          SAC ACQUISITION CORPORATION,
                           a Delaware corporation; and


                                 COMPURAD, INC.,
                             a Delaware corporation





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

                         Dated as of September 28, 1997

                       ----------------------------------
<PAGE>   2
                                TABLE OF CONTENTS

                                                                            Page

SECTION 1.  DESCRIPTION OF TRANSACTION.....................................  2
      1.1   Merger of Merger Sub into the Company..........................  2
      1.2   Effect of the Merger...........................................  2
      1.3   Closing; Effective Time........................................  2
      1.4   Certificate of Incorporation and Bylaws; Directors and
            Officers.......................................................  2
      1.5   Conversion of Shares...........................................  3
      1.6   Closing of the Company's Transfer Books........................  4
      1.7   Exchange of Certificates.......................................  4
      1.8   Dissenting Shares..............................................  6
      1.9   Tax Consequences...............................................  6
      1.10  Accounting Consequences........................................  7
      1.11  Further Action.................................................  7

SECTION 2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY..................  7
      2.1   Due Organization; Subsidiaries; Etc............................  7
      2.2   Certificate of Incorporation and Bylaws. ......................  7
      2.3   Capitalization, Etc............................................  8
      2.4   SEC Filings; Financial Statements..............................  9
      2.5   Absence of Changes............................................. 10
      2.6   Title to Assets................................................ 12
      2.7   Receivables.................................................... 12
      2.8   Real Property; Equipment; Leasehold............................ 12
      2.9   Proprietary Assets............................................. 12
      2.10  Contracts...................................................... 14
      2.11  Liabilities.................................................... 16
      2.12  Compliance with Legal Requirements............................. 16
      2.13  Certain Business Practices..................................... 16
      2.14  Governmental Authorizations.................................... 17
      2.15  Tax Matters.................................................... 17
      2.16  Employee and Labor Matters; Benefit Plans...................... 18
      2.17  Environmental Matters.......................................... 20
      2.18  Insurance...................................................... 20
      2.19  Transactions with Affiliates................................... 21
      2.20  Legal Proceedings; Orders...................................... 21
      2.21  Authority; Binding Nature of Agreement......................... 21
      2.22  No Existing Discussions........................................ 22
      2.23  Accounting Matters............................................. 22
      2.24  Vote Required.................................................. 22
      2.25  Non-Contravention; Consents.................................... 22


                                       i
<PAGE>   3
      2.26  Fairness Opinion............................................... 23
      2.27  Financial Advisor.............................................. 23
      2.28  Section 203 of the DGCL Not Applicable......................... 23


Section 3.  Representations and Warranties of Parent and Merger Sub........ 24
      3.1   Organization, Standing and Power............................... 24
      3.2   Certificate of Incorporation and Bylaws........................ 24
      3.3   Capitalization, Etc............................................ 24
      3.4   SEC Filings; Financial Statements.............................. 25
      3.5   Absence of Certain Changes or Events........................... 26
      3.6   Title to Assets................................................ 27
      3.7   Receivables.................................................... 27
      3.8   Real Property; Equipment; Leasehold............................ 27
      3.9   Proprietary Assets............................................. 28
      3.10  Contracts...................................................... 29
      3.11  Liabilities.................................................... 30
      3.12  Compliance with Legal Requirements............................. 31
      3.13  Certain Business Practices..................................... 31
      3.14  Governmental Authorizations.................................... 31
      3.15  Tax Matters.................................................... 31
      3.16  Employee and Labor Matters; Benefit Plans...................... 32
      3.17  Environmental Matters.......................................... 32
      3.18  Insurance...................................................... 33
      3.19  Transactions with Affiliates................................... 33
      3.20  Legal Proceedings; Orders...................................... 33
      3.21  Authority; Binding Nature of Agreement.  ...................... 33
      3.22  Vote Required.................................................. 34
      3.23  Non-Contravention; Consents.................................... 34
      3.24  No Existing Discussions........................................ 34
      3.25  Accounting Matters............................................. 34
      3.26  Financial Advisor.............................................. 34
      3.27  Fairness Opinion............................................... 34
      3.28  Valid Issuance................................................. 35

SECTION 4.  CERTAIN COVENANTS OF THE PARTIES............................... 35
      4.1   Access and Investigation....................................... 35
      4.2   Operation of the Company's Business............................ 35
      4.3   Operation of Parent's Business................................. 38
      4.4   No Solicitation................................................ 39

SECTION 5.  ADDITIONAL COVENANTS OF THE PARTIES............................ 40
      5.1   Registration Statement; Joint Proxy Statement.................. 40


                                       ii
<PAGE>   4
      5.2   Company Stockholders' Meeting.................................. 41
      5.3   Parent Stockholders' Meeting................................... 42
      5.4   Regulatory Approvals........................................... 43
      5.5   Stock Options, Warrants, and Employee Stock Purchase Plans..... 43
      5.6   Indemnification of Officers and Directors...................... 45
      5.7   Pooling of Interests........................................... 46
      5.8   Additional Agreements.......................................... 46
      5.9   Disclosure..................................................... 47
      5.10  Affiliate Agreements........................................... 47
      5.11  Tax Matters.................................................... 47
      5.12  Comfort Letters................................................ 47
      5.13  Resignation of Officers and Directors.......................... 48
      5.14  Appointment of Additional Directors............................ 48
      5.15  Consents....................................................... 48
      5.16  Financial Information and Reporting............................ 48

Section 6.  Conditions Precedent to Obligations of Parent and Merger Sub... 48
      6.1   Accuracy of Representations.................................... 49
      6.2   Performance of Covenants....................................... 49
      6.3   Effectiveness of Registration Statement........................ 49
      6.4   Stockholder Approval........................................... 49
      6.5   Agreements and Documents....................................... 49
      6.6   No Material Adverse Effect..................................... 50
      6.7   Listing........................................................ 50
      6.8   No Restraints.................................................. 50
      6.9   No Governmental Litigation..................................... 50

SECTION 7.  CONDITIONS PRECEDENT TO OBLIGATION OF THE COMPANY.............. 51
      7.1   Accuracy of Representations.................................... 51
      7.2   Performance of Covenants....................................... 51
      7.3   Effectiveness of Registration Statement........................ 51
      7.4   Stockholder Approval........................................... 51
      7.5   Documents...................................................... 51
      7.6   No Material Adverse Effect..................................... 52
      7.7   Listing........................................................ 52
      7.8   No Restraints.................................................. 52

SECTION 8.  TERMINATION.................................................... 52
      8.1   Termination.................................................... 52
      8.2   Effect of Termination.......................................... 54
      8.3   Expenses; Termination Fees..................................... 54

SECTION 9.  MISCELLANEOUS PROVISIONS....................................... 56



                                       iii
<PAGE>   5
      9.1   Amendment...................................................... 56
      9.2   Waiver......................................................... 57
      9.3   No Survival of Representations and Warranties.................. 57
      9.4   Entire Agreement; Counterparts; Applicable Law; Jurisdiction... 57
      9.5   Attorneys' Fees................................................ 57
      9.6   Assignability.................................................. 58
      9.7   Notices........................................................ 58
      9.8   Construction................................................... 59



                                       iv
<PAGE>   6
                                    EXHIBITS




Exhibit A   -     Certain definitions

Exhibit B   -     Form of Certificate of Incorporation of Surviving Corporation

Exhibit C   -     Form of Affiliate Agreement

Exhibit D   -     Continuity of Interest Certificate

Exhibit E   -     Form of Employment Offer Letter

Exhibit F   -     Individuals to execute Employment Offer Letters

Exhibit G   -     Voting Agreement

Exhibit H   -     Individuals to execute the Voting Agreement



                                       v
<PAGE>   7

                               AGREEMENT AND PLAN
                          OF MERGER AND REORGANIZATION


      THIS AGREEMENT AND PLAN OF MERGER AND REORGANIZATION ("Agreement") is made
and entered into as of September 28, 1997, by and among: LUMISYS INCORPORATED a
Delaware corporation ("Parent"); SAC ACQUISITION CORPORATION, a Delaware
corporation and a wholly owned subsidiary of Parent ("Merger Sub"); and
COMPURAD, INC., a Delaware corporation (the "Company"). Certain capitalized
terms used in this Agreement are defined in Exhibit A.


                                    RECITALS


      A. Parent, Merger Sub and the Company intend to effect a merger of Merger
Sub into the Company in accordance with this Agreement and the Delaware General
Corporation Law (the "Merger"). Upon consummation of the Merger, Merger Sub will
cease to exist, and the Company will become a wholly owned subsidiary of Parent.

      B. It is intended that the Merger qualify as a tax-free reorganization
within the meaning of Section 368(a) of the Internal Revenue Code of 1986, as
amended (the "Code"). For financial reporting purposes, it is intended that the
Merger be accounted for as a "pooling of interests."

      C. The respective Boards of Directors of Parent, Merger Sub and the
Company have approved this Agreement and approved the Merger.


                                       1
<PAGE>   8
                                    AGREEMENT

      The parties to this Agreement, intending to be legally bound, agree as
follows:


SECTION 1. DESCRIPTION OF TRANSACTION


      1.1 MERGER OF MERGER SUB INTO THE COMPANY. Upon the terms and subject to
the conditions set forth in this Agreement, at the Effective Time (as defined in
Section 1.3), Merger Sub shall be merged with and into the Company, and the
separate existence of Merger Sub shall cease. The Company will continue as the
surviving corporation in the Merger (the "Surviving Corporation").

      1.2 EFFECT OF THE MERGER. The Merger shall have the effects set forth in
this Agreement and in the applicable provisions of the Delaware General
Corporation Law (the "DGCL").

      1.3 CLOSING; EFFECTIVE TIME. The consummation of the transactions
contemplated by this Agreement (the "Closing") shall take place at the offices
of Cooley Godward LLP, Five Palo Alto Square, 3000 El Camino Real, Palo Alto,
California, at 10:00 a.m. on a date to be designated by Parent (the "Closing
Date"), which (subject to the satisfaction or waiver of the conditions set forth
in Sections 6 and 7) shall be no later than the tenth business day after the
satisfaction of the latest to occur of the conditions set forth in Sections 6.4
and 7.4. Contemporaneously with or as promptly as practicable after the Closing,
a properly executed certificate of merger conforming to the requirements of the
DGCL (the "Certificate of Merger") shall be filed with the Secretary of State of
the State of Delaware. The Merger shall take effect at the time the Certificate
of Merger is filed with the Secretary of State of the State of Delaware (the
"Effective Time").

      1.4 CERTIFICATE OF INCORPORATION AND BYLAWS; DIRECTORS AND OFFICERS.
Unless otherwise determined by Parent prior to the Effective Time:

            (a) the Certificate of Incorporation of the Surviving Corporation
shall be amended and restated as of the Effective Time to conform to Exhibit B;

            (b) the Bylaws of the Surviving Corporation shall be amended and
restated as of the Effective Time to conform to the Bylaws of Merger Sub as in
effect immediately prior to the Effective Time; and

            (c) the directors and officers of the Surviving Corporation
immediately after the Effective Time shall be the respective individuals who are
directors and officers of Merger Sub immediately prior to the Effective Time.


                                       2
<PAGE>   9
      1.5 CONVERSION OF SHARES

            (a) At the Effective Time, by virtue of the Merger and without any
further action on the part of Parent, Merger Sub, the Company or any stockholder
of the Company:

                  (i) any shares of Company Common Stock then held by the
            Company or any Subsidiary of the Company (or held in the Company's
            treasury) shall be canceled and retired and shall cease to exist,
            and no consideration shall be delivered in exchange therefor;

                  (ii) any shares of Company Common Stock then held by Parent,
            Merger Sub or any other Subsidiary of Parent shall be canceled and
            retired and shall cease to exist, and no consideration shall be
            delivered in exchange therefor;

                  (iii) except as provided in clauses "(i)" and "(ii)" above and
            subject to Sections 1.5(b), 1.5(d), 1.5(e) and 1.8, each share of
            Company Common Stock then outstanding shall be converted into the
            right to receive 0.9280 of a share of Parent Common Stock, which
            shares shall have been registered under the Securities Act pursuant
            to a registration statement on Form S-4 as described in Section 5.1
            hereof; and

                  (iv) each share of the common stock, $0.001 par value per
            share, of Merger Sub then outstanding shall be converted into one
            share of common stock of the Surviving Corporation.

            (b) The fraction of a share of Parent Common Stock specified in
Section 1.5(a)(iii) (as such fraction may be adjusted in accordance with this
Section 1.5(b)) is referred to as the "Exchange Ratio." If, between the date of
this Agreement and the Effective Time, the outstanding shares of Company Common
Stock or Parent Common Stock are changed into a different number or class of
shares by reason of any stock split, stock dividend, reverse stock split,
reclassification, recapitalization or other similar transaction, then the
Exchange Ratio shall be appropriately adjusted.

            (c) In accordance with rules and regulations relating to pooling of
interests accounting, if any shares of Company Common Stock outstanding
immediately prior to the Effective Time are unvested or are subject to a
repurchase option, risk of forfeiture or other condition under any applicable
restricted stock purchase agreement or other agreement with the Company or under
which the Company has any rights, then the shares of Parent Common Stock issued
in exchange for such shares of Company Common Stock will also be unvested and
subject to the same repurchase option, risk of forfeiture or other condition,
and the certificates representing such shares of Parent Common Stock may
accordingly be marked with appropriate legends. The Company shall take all
action that may be necessary to ensure that, from and after the Effective Time,
Parent is entitled to exercise any such repurchase option or other right set
forth in any such restricted stock purchase agreement or other agreement.

            (d) No fractional shares of Parent Common Stock shall be issued in
connection with the Merger, and no certificates or scrip for any such fractional
shares shall be issued. Any


                                       3
<PAGE>   10
holder of Company Common Stock who would otherwise be entitled to receive a
fraction of a share of Parent Common Stock (after aggregating all fractional
shares of Parent Common Stock issuable to such holder) shall, in lieu of such
fraction of a share and, upon surrender of such holder's Company Stock
Certificate(s) (as defined in Section 1.6), be paid in cash the dollar amount
(rounded to the nearest whole cent), without interest, determined by multiplying
such fraction by the closing price of a share of Parent Common Stock on the
Nasdaq National Market System on the date the Merger becomes effective.

            (e) If there are any Excess Company Merger Expenses (as defined in
Section 8.3(a)), the Exchange Ratio shall be adjusted as follows:

New Exchange Ratio   =     Exchange Ratio x  (Number of Company Common
                                             Stock to be exchanged in the
                                             Merger + Company Options (as
                                             defined in Section 2.3) and
                                             Company Warrants (as defined
                                             in Section 2.3)  x 7.50 -
                                             Excess Company Merger Expenses
                                             ------------------------------
                                             7.50 x Number of Company
                                             Common Stock to be exchanged
                                             in the Merger + Company
                                             Options and Company Warrants)

      1.6 CLOSING OF THE COMPANY'S TRANSFER BOOKS. At the Effective Time: (a)
all shares of Company Common Stock outstanding immediately prior to the
Effective Time shall automatically be canceled and retired and shall cease to
exist, and all holders of certificates representing shares of Company Common
Stock that were outstanding immediately prior to the Effective Time shall cease
to have any rights as stockholders of the Company; and (b) the stock transfer
books of the Company shall be closed with respect to all shares of Company
Common Stock outstanding immediately prior to the Effective Time. No further
transfer of any such shares of Company Common Stock shall be made on such stock
transfer books after the Effective Time. If, after the Effective Time, a valid
certificate previously representing any of such shares of Company Common Stock
(a "Company Stock Certificate") is presented to the Exchange Agent (as defined
in Section 1.7) or to the Surviving Corporation or Parent, such Company Stock
Certificate shall be canceled and shall be exchanged as provided in Section 1.7.

      1.7 EXCHANGE OF CERTIFICATES.

            (a) On or prior to the Closing Date, Parent shall select a reputable
bank or trust company to act as exchange agent in the Merger (the "Exchange
Agent"). Promptly after the Effective Time, Parent shall deposit with the
Exchange Agent (i) certificates representing the shares of Parent Common Stock
issuable pursuant to this Section 1, and (ii) cash sufficient to make payments
in lieu of fractional shares in accordance with Section 1.5(d). The shares of
Parent Common Stock and cash amounts so deposited with the Exchange Agent,
together with any dividends or distributions received by the Exchange Agent with
respect to such shares, are referred to collectively as the "Exchange Fund."


                                       4
<PAGE>   11
            (b) As soon as reasonably practicable after the Effective Time, (but
in any event within 10 business days thereafter) Parent shall cause the Exchange
Agent to mail to the holders of Company Stock Certificates (i) a letter of
transmittal in customary form and containing such provisions as Parent may
reasonably specify (including a provision confirming that delivery of Company
Stock Certificates shall be effected, and risk of loss and title to Company
Stock Certificates shall pass, only upon delivery of such Company Stock
Certificates to the Exchange Agent), and (ii) instructions for use in effecting
the surrender of Company Stock Certificates in exchange for certificates
representing Parent Common Stock. Upon surrender of a Company Stock Certificate
to the Exchange Agent for exchange, together with a duly executed letter of
transmittal and such other documents as may be reasonably required by the
Exchange Agent or Parent, (A) the holder of such Company Stock Certificate shall
be entitled to receive in exchange therefor a certificate representing the
number of whole shares of Parent Common Stock that such holder has the right to
receive pursuant to the provisions of Section 1.5 (and cash in lieu of any
fractional share of Parent Common Stock and any dividends or other distributions
to which such holder is entitled pursuant to Section 1.7(c)), and (B) the
Company Stock Certificate so surrendered shall be canceled. Until surrendered as
contemplated by this Section 1.7, each Company Stock Certificate shall be
deemed, from and after the Effective Time, to represent only the right to
receive shares of Parent Common Stock (and cash in lieu of any fractional share
of Parent Common Stock and any dividends or other distributions to which such
holder is entitled pursuant to Section 1.7(c)) as contemplated by Section 1. If
any Company Stock Certificate shall have been lost, stolen or destroyed, Parent
may, in its discretion and as a condition precedent to the issuance of any
certificate representing Parent Common Stock, require the owner of such lost,
stolen or destroyed Company Stock Certificate to provide an appropriate
affidavit and to deliver a bond (in such sum as Parent may reasonably direct) as
indemnity against any claim that may be made against the Exchange Agent, Parent
or the Surviving Corporation with respect to such Company Stock Certificate.

            (c) No dividends or other distributions declared or made with
respect to Parent Common Stock with a record date after the Effective Time shall
be paid to the holder of any unsurrendered Company Stock Certificate with
respect to the shares of Parent Common Stock represented thereby, and no cash
payment in lieu of any fractional shares shall be paid to such holder, until
such holder surrenders such Company Stock Certificate in accordance with this
Section 1.7 (at which time such holder shall be entitled, subject to the effect
of applicable escheat or similar laws, to receive all such dividends and
distributions, without interest).

            (d) Any portion of the Exchange Fund that remains undistributed to
holders of Company Stock Certificates as of the date 180 days after the date on
which the Merger becomes effective shall be delivered to Parent upon demand, and
any holders of Company Stock Certificates who have not theretofore surrendered
their Company Stock Certificates in accordance with this Section 1.7 shall
thereafter look only to Parent for satisfaction of any claims for Parent Common
Stock, cash in lieu of fractional shares of Parent Common Stock and any
dividends or distributions with respect to Parent Common Stock.

            (e) Each of the Exchange Agent, Parent and the Surviving Corporation
shall be entitled to deduct and withhold from any consideration payable or
otherwise deliverable pursuant to this Agreement to any holder or former holder
of Company Common Stock such amounts as may


                                       5
<PAGE>   12
be required to be deducted or withheld therefrom under the Code or any provision
of state, local or foreign tax law or under any other applicable Legal
Requirement. To the extent such amounts are so deducted or withheld, such
amounts shall be treated for all purposes under this Agreement as having been
paid to the Person to whom such amounts would otherwise have been paid.

            (f) Neither Parent nor the Surviving Corporation shall be liable to
any holder or former holder of Company Common Stock or to any other Person with
respect to any shares of Parent Common Stock (or dividends or distributions with
respect thereto), or for any cash amounts, delivered to any public official
pursuant to any applicable abandoned property law, escheat law or similar Legal
Requirement.

      1.8 DISSENTING SHARES.

            (a) Notwithstanding anything to the contrary contained in this
Agreement, any shares of Company Common Stock outstanding immediately prior to
the Effective Time that were not voted in favor of the Merger and are held by
stockholders who have complied with the applicable provisions of Title 8,
Section 262 of the DGCL ("Dissenting Shares") shall not be converted into or
represent the right to receive Parent Common Stock in accordance with Section
1.5(a)(iii) (or cash in lieu of fractional shares in accordance with Section
1.5(d)), and each holder of Dissenting Shares shall be entitled only to such
rights as may be granted to such holder under Title 8, Section 262 of the DGCL.
From and after the Effective Time, a holder of Dissenting Shares shall not have
and shall not be entitled to exercise any of the voting rights or other rights
of a stockholder of the Surviving Corporation. If any holder of Dissenting
Shares shall fail to assert or perfect, or shall waive, rescind, withdraw or
otherwise lose, such holder's right to dissent and obtain payment under Title 8,
Section 262 of the DGCL, then such shares shall automatically be converted into
and shall represent only the right to receive (upon the surrender of Company
Stock Certificate(s) previously representing such shares) Parent Common Stock in
accordance with Section 1.5(a)(iii) (and cash in lieu of any fractional share in
accordance with Section 1.5(d) and any dividends or other distributions to which
such holder is entitled pursuant to Section 1.7(c)).

            (b) The Company: (i) shall promptly notify Parent in writing of any
notice received by the Company of a stockholder's intent to demand payment for
such stockholder's shares of Company Common Stock pursuant to Title 8, Section
262 of the DGCL, and shall promptly notify Parent in writing of any other
notice, demand or instrument delivered to the Company pursuant to the DGCL; and
(ii) shall give Parent's Representatives the opportunity to participate in all
negotiations and proceedings with respect to any such notice, demand or
instrument. The Company shall not make any payment or settlement offer with
respect to any such notice or demand unless Parent shall have consented in
writing to such payment or settlement offer.

      1.9 TAX CONSEQUENCES. For federal income tax purposes, the Merger is
intended to constitute a reorganization within the meaning of Section 368 of the
Code. The parties to this Agreement hereby adopt this Agreement as a "plan of
reorganization" within the meaning of Sections 1.368-2(g) and 1.368-3(a) of the
United States Treasury Regulations.


                                       6
<PAGE>   13
      1.10 ACCOUNTING CONSEQUENCES. For financial reporting purposes, the Merger
is intended to be accounted for as a "pooling of interests."

      1.11 FURTHER ACTION. If, at any time after the Effective Time, any further
action is determined by Parent to be necessary or desirable to carry out the
purposes of this Agreement or to vest the Surviving Corporation with full right,
title and possession of and to all rights and property of Merger Sub and the
Company, the officers and directors of the Surviving Corporation and Parent
shall be fully authorized (in the name of Merger Sub, in the name of the Company
and otherwise) to take such action.


SECTION 2. REPRESENTATIONS AND WARRANTIES OF THE COMPANY

      The Company represents and warrants to Parent and Merger Sub that, except
as set forth in the Company SEC Documents (as defined in Section 2.4(a)) or in
the Company Disclosure Schedule:

      2.1 DUE ORGANIZATION; SUBSIDIARIES; ETC.

            (a) The Company has no Subsidiaries; and the Company does not own
any capital stock of, or any equity interest of any nature in, any other Entity,
other than the Entities identified in Part 2.1(a)(ii) of the Company Disclosure
Schedule. The Company has not agreed nor is obligated to make, nor is bound by
any Contract under which it may become obligated to make, any future investment
in or capital contribution to any other Entity. The Company has not, at any
time, been a general partner of any general partnership, limited partnership or
other Entity.

            (b) The Company is a corporation duly organized, validly existing
and in good standing under the laws of the jurisdiction of its incorporation and
has all necessary power and authority: (i) to conduct its business in the manner
in which its business is currently being conducted; (ii) to own, lease and use
its assets in the manner in which its assets are currently owned, leased and
used; and (iii) to perform its obligations under all Contracts by which it is
bound.

            (c) The Company is qualified to do business as a foreign
corporation, and is in good standing, under the laws of all jurisdictions where
the nature of its business requires such qualification and where the failure to
be so qualified would have a Material Adverse Effect on the Company.

            (d) The Company has not conducted any business under or otherwise
used, for any purpose or in any jurisdiction, any fictitious name, assumed name,
trade name, or other name, other than the names set forth in Part 2.1(d) of the
Company's Disclosure Schedule.

      2.2 CERTIFICATE OF INCORPORATION AND BYLAWS. The Company has delivered to
Parent accurate and complete copies of its certificate of incorporation and
bylaws, in each case as amended as of the date of this Agreement.


                                       7
<PAGE>   14
      2.3 CAPITALIZATION, ETC.

            (a) The authorized capital stock of the Company consists of: (i)
20,000,000 shares of Company Common Stock, of which 3,962,750 shares have been
issued and are outstanding and of which no shares are held by the Company in its
treasury as of the date of this Agreement; and (ii) 5,000,000 shares of
Preferred Stock, $0.01 par value per share, of which no shares are outstanding
or are held by the Company in its treasury as of the date of this Agreement. All
of the outstanding shares of Company Common Stock have been duly authorized and
validly issued, and are fully paid and nonassessable. Except as set forth in
Part 2.3(a)(i) of the Company Disclosure Schedule: (i) none of the outstanding
shares of Company Common Stock is entitled or subject to any preemptive right,
right of participation, right of maintenance or any similar right; (ii) none of
the outstanding shares of Company Common Stock is subject to any right of first
refusal in favor of the Company; and (iii) there is no Company Contract relating
to the voting or registration of, or restricting any Person from purchasing,
selling, pledging or otherwise disposing of (or granting any option or similar
right with respect to), any shares of Company Common Stock. The Company is not
under any obligation, nor is it bound by any Contract pursuant to which it may
become obligated, to repurchase, redeem or otherwise acquire any outstanding
shares of Company Common Stock.

            (b) At the close of business on September 25, 1997: (i) 151,410
shares of Company Common Stock were subject to issuance pursuant to outstanding
options to purchase shares of Company Common Stock under the Company's 1994
Stock Option Plan; (ii) 179,790 shares of Company Common Stock were subject to
issuance pursuant to outstanding options to purchase shares of Company Common
Stock under the Company's 1996 Stock Option Plan; and (iii) 100,000 shares of
Company Common Stock were subject to issuance pursuant to rights to purchase
shares of Company Common Stock under the 1996 Employee Stock Purchase Plan.
(Stock options granted by the Company pursuant to the 1994 Stock Option Plan and
the 1996 Stock Option Plan are referred to in this Agreement as "Company
Options"; the 1994 Stock Option Plan and the 1996 Stock Option Plan are
collectively referred to as the "Company Stock Plans.") As of close of business
on September 25, 1997, 100,000 shares of Company Common Stock were subject to
issuance pursuant to outstanding warrants to purchase Company Common Stock (the
"Company Warrants"). Part 2.3(b)(i) of the Company Disclosure Schedule sets
forth the following information with respect to each Company Option outstanding
as of the date of this Agreement: (i) the particular plan pursuant to which such
Company Option was granted; (ii) the name of the optionee; (iii) the number of
shares of Company Common Stock subject to such Company Option; (iv) the exercise
price of such Company Option; (v) the date on which such Company Option was
granted; (vi) the applicable vesting schedules, and the extent to which such
Company Option is vested and exercisable as of the date of this Agreement; and
(vii) the date on which such Company Option expires. The Company has delivered
to Parent accurate and complete copies of all stock option plans pursuant to
which the Company has ever granted stock options, and the forms of all stock
option agreements evidencing such options. Part 2.3(b)(ii) of the Company
Disclosure Schedule sets forth the following information with respect to each
Company Warrant: (i) the name of the holder of such Company Warrant; (ii) the
number of shares of Company Common Stock subject to such Company Warrant; (iii)
the exercise price of such Company Warrant; (iv) the date on which such Company
Warrant was issued; (v) vesting and (vi) the date on which such Company Warrant
expires. The Company has delivered to Parent an accurate and complete copy of
each Company Warrant.


                                       8
<PAGE>   15
            (c) Other than the Company Options and the Company Warrants, there
is no: (i) outstanding subscription, option, call, warrant or right (whether or
not currently exercisable) to acquire any shares of the capital stock or other
securities of the Company; (ii) outstanding security, instrument or obligation
that is or may become convertible into or exchangeable for any shares of the
capital stock or other securities of the Company; (iii) stockholder rights plan
(or similar plan commonly referred to as a "poison pill") or Contract under
which the Company is or may become obligated to sell or otherwise issue any
shares of its capital stock or any other securities; or (iv) condition or
circumstance that may give rise to or provide a basis for the assertion of a
claim by any Person to the effect that such Person is entitled to acquire or
receive any shares of capital stock or other securities of the Company.

            (d) All outstanding shares of Company Common Stock, all outstanding
Company Options, all outstanding warrants to purchase Company Common Stock and
all outstanding shares of capital stock of the Company have been issued and
granted in compliance with (i) all applicable securities laws and other
applicable Legal Requirements, and (ii) all requirements set forth in applicable
Contracts.

      2.4 SEC FILINGS; FINANCIAL STATEMENTS.

            (a) The Company has delivered to Parent accurate and complete copies
of all registration statements, proxy statements and other statements, reports,
schedules, forms and other documents filed by the Company with the SEC since
December 31, 1996 (the "Company SEC Documents"), including the Company's
registration statement on Form SB-2 filed with the SEC on August 28, 1996. All
statements, reports, schedules, forms and other documents required to have been
filed by the Company with the SEC have been so filed. As of the time it was
filed with the SEC (or, if amended or superseded by a filing prior to the date
of this Agreement, then on the date of such filing): (i) each of the Company SEC
Documents complied in all material respects with the applicable requirements of
the Securities Act or the Exchange Act (as the case may be); and (ii) none of
the Company SEC Documents contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading.

            (b) The financial statements (including any related notes) contained
in the Company SEC Documents ("Company Financial Statements"): (i) complied as
to form in all material respects with the published rules and regulations of the
SEC applicable thereto; (ii) were prepared in accordance with generally accepted
accounting principles applied on a consistent basis throughout the periods
covered (except as may be indicated in the notes to such financial statements
or, in the case of unaudited statements, as permitted by Form 10-QSB of the SEC,
and except that the unaudited financial statements may not contain footnotes and
are subject to normal and recurring year-end adjustments which will not,
individually or in the aggregate, be material in amount), and (iii) fairly
present the financial position of the Company as of the respective dates thereof
and the results of operations and cash flows of the Company for the periods
covered thereby.

            (c) The Company has delivered to Parent an unaudited balance sheet
of the Company as of June 30, 1997 (the "Company Unaudited Interim Balance
Sheet"), and the related


                                       9
<PAGE>   16
unaudited statement of operations, statement of stockholders' equity and
statement of cash flows of the Company for the quarter then ended. The financial
statements referred to in this Section 2.4(c): (i) were prepared in accordance
with generally accepted accounting principles applied on a basis consistent with
the basis on which the financial statements referred to in Section 2.4(b) were
prepared (except that such financial statements do not contain footnotes and are
subject to normal and recurring year-end adjustments which will not,
individually or in the aggregate, be material in amount), and (ii) fairly
present the financial position of the Company as of June 30, 1997 thereof and
the results of operations and cash flows of the Company for the six month period
ended June 30, 1997.

      2.5 ABSENCE OF CHANGES. Except as disclosed in the Company SEC Documents,
since June 30, 1997:

            (a) there has not been any Material Adverse Effect on the Company;

            (b) the Company has not (i) declared, accrued, set aside or paid any
dividend or made any other distribution in respect of any shares of capital
stock, or (ii) repurchased, redeemed or otherwise reacquired any shares of
capital stock or other securities;

            (c) the Company has not sold, issued or granted, or authorized the
issuance of (i) any capital stock or other security (except for Company Common
Stock issued upon the exercise of outstanding Company Options and outstanding
Company Warrants), (ii) any option, warrant or right to acquire any capital
stock or any other security (except for Company Options described in Part
2.3(b)(i) of the Company Disclosure Schedule), or (iii) any instrument
convertible into or exchangeable for any capital stock or other security;

            (d) the Company has not amended or waived any of its rights under,
or permitted the acceleration of vesting under, (i) any provision of any of the
Company's Stock Plans, (ii) any provision of any agreement evidencing any
outstanding Company Option, (iii) any restricted stock purchase agreement, or
(iv) any provision of any agreement evidencing any outstanding Company Warrant;

            (e) there has been no amendment to the certificate of incorporation,
bylaws or other charter or organizational documents of the Company, and the
Company has not effected or been a party to any merger, consolidation, share
exchange, business combination, recapitalization, reclassification of shares,
stock split, reverse stock split or similar transaction;

            (f) the Company has not formed any Subsidiary or acquired any equity
interest or other interest in any other Entity;

            (g) the Company has not made any capital expenditure which, when
added to all other capital expenditures made on behalf of the Company since June
30, 1997, exceeds $100,000 in the aggregate;


                                       10
<PAGE>   17
            (h) except in the ordinary course of business and consistent with
past practices, the Company has not (i) entered into or permitted any of the
assets owned or used by it to become bound by any Material Contract (as defined
in Section 2.10), or (ii) amended or terminated, or waived any material right or
remedy under, any Material Contract;

            (i) the Company has not (i) acquired, leased or licensed any
material right or other material asset from any other Person, (ii) sold or
otherwise disposed of, or leased or licensed, any material right or other
material asset to any other Person, or (iii) waived or relinquished any right,
except for rights or other assets acquired, leased, licensed or disposed of in
the ordinary course of business and consistent with past practices;

            (j) the Company has not written off as uncollectible, or established
any extraordinary reserve with respect to, any account receivable or other
indebtedness;

            (k) the Company has not made any pledge of any of its assets or
otherwise permitted any of its assets to become subject to any Encumbrance,
except for pledges of immaterial assets made in the ordinary course of business
and consistent with past practices;

            (l) the Company has not (i) lent money to any Person, or (ii)
incurred or guaranteed any indebtedness for borrowed money except for advances
to customers and employees (other than customers and employees who are also
affiliates of the Company as identified in Part 2.19 of the Company Disclosure
Schedule) in the ordinary course of business and consistent with past practices;

            (m) the Company has not (i) established or adopted any Plan, Welfare
Plan or Pension Plan (as defined in Section 2.16), (ii) caused or permitted any
Plan, Welfare Plan or Pension Plan to be amended in any material respect, (iii)
paid any bonus or made any profit-sharing or similar payment to, or materially
increased the amount of the wages, salary, commissions, fringe benefits or other
compensation or remuneration payable to, any of its directors, officers or
employees, or (iv) hired any new employees;

            (n) the Company has not changed any of its methods of accounting or
accounting practices (i) having a Material Adverse Effect on the Company or (ii)
that may have an effect on rules and regulations related to pooling of interests
accounting, except insofar as such change is required by a change in generally
accepted accounting principles;

            (o) the Company has not made any Tax election that could have a
Material Adverse Effect on the Company;

            (p) the Company has not entered into any material transaction or
taken any other material action outside the ordinary course of business or
inconsistent with past practices; and

            (q) the Company has not agreed or committed to take any of the
actions referred to in clauses "(c)" through "(p)" above.


                                       11
<PAGE>   18
      2.6 TITLE TO ASSETS. The Company owns, and has good, valid and marketable
title to, all assets purported to be owned by it, including: (a) all assets
reflected on the Company Unaudited Interim Balance Sheet; and (b) all other
assets reflected in the books and records of the Company as being owned by the
Company. All of said assets are owned by the Company free and clear of any
Encumbrances, except for (i) any lien for current taxes not yet due and payable,
(ii) liens that have arisen in the ordinary course of business and that do not
(in any case or in the aggregate) materially detract from the value of the
assets subject thereto or materially impair the operations of the Company, and
(iii) liens described in Part 2.6 of the Company Disclosure Schedule.

      2.7 RECEIVABLES.

            (a) Except as set forth on the Part 2.7(a) of the Company's
Disclosure Schedule, all existing accounts receivable of the Company (including
those accounts receivable reflected on the Company Unaudited Interim Balance
Sheet that have not yet been collected and those accounts receivable that have
arisen since June 30, 1997 and have not yet been collected) represent valid
obligations of customers of the Company arising from bona fide transactions
entered into in the ordinary course of business. All existing accounts
receivable of the Company (including those accounts receivable reflected on the
Company's Unaudited Interim Balance Sheet that have not yet been collected and
those accounts receivable as of September 30, 1997) are current and, to the
Company's knowledge will be collected in full when due, without any counterclaim
or set off (net of an allowance for doubtful accounts which shall not exceed
$150,000 in the aggregate).


            (b) Part 2.7(b) of the Company Disclosure Schedule contains an
accurate and complete list as of the date of this Agreement of all loans and
advances made by Company to any employee, director, consultant or independent
contractor other than routine travel advances made to employees in the ordinary
course of business.

      2.8 REAL PROPERTY; EQUIPMENT; LEASEHOLD. The Company does not own any real
property or any interest in real property, except for the leasehold created
under the real property lease previously made available to Parent by the Company
and listed on Part 2.8(a) of the Company Disclosure Schedule.

      2.9 PROPRIETARY ASSETS.

            (a) Part 2.9(a)(i) of the Company Disclosure Schedule identifies
each Proprietary Asset owned by the Company and registered with any Governmental
Body or for which an application has been filed with any Governmental Body and
the names of the jurisdictions covered by the applicable registration or
application. Part 2.9(a)(ii) of the Company Disclosure Schedule identifies all
other Proprietary Assets owned by the Company. Part 2.9(a)(iii) of the Company
Disclosure Schedule identifies any ongoing royalty or payment obligations of the
Company in excess of $10,000 with respect to, each Proprietary Asset that is
licensed or otherwise made available to the Company by a third party (except for
any Proprietary Asset that is licensed to the Company under any third party
software license generally available to the public), and identifies the Contract
under which such Proprietary Asset is being licensed or otherwise made available
to the Company. The


                                       12
<PAGE>   19
Company has good, valid and marketable title to all of the Company Proprietary
Assets identified in Parts 2.9(a)(i) and 2.9(a)(ii) (except for Proprietary
Assets licensed to the Company by a third party) of the Company Disclosure
Schedule, free and clear of all Encumbrances, except for (i) any lien for
current taxes not yet due and payable, and (ii) minor liens that have arisen in
the ordinary course of business and that do not (individually or in the
aggregate) materially detract from the value of the assets subject thereto or
materially impair the operations of the Company. The Company has a valid right
to use, license and otherwise exploit (subject to the terms of any Company
Contract pursuant to which Proprietary Assets have been licensed to the Company
by a third party) all Proprietary Assets identified in Parts 2.9(a)(i),
2.9(a)(ii)(with respect to Proprietary Assets licensed to the Company by a third
party) and 2.9(a)(iii) of the Company Disclosure Schedule. Except as set forth
in Part 2.9(a)(iv) of the Company Disclosure Schedule, the Company has not
developed jointly with any other Person any Company Proprietary Asset that is
material to the business of the Company as currently conducted or proposed to be
conducted with respect to which such other Person has any rights. Except as set
forth in Part 2.9(a)(v) of the Company Disclosure Schedule, there is no Company
Contract (with the exception of end user license agreements in the form
previously delivered by the Company to Parent) pursuant to which any Person has
any right (whether or not currently exercisable) to use, license or otherwise
exploit any Company Proprietary Asset.

            (b) The Company has taken reasonable measures and precautions to
protect and maintain the confidentiality, secrecy and value of all material
Company Proprietary Assets (except Company Proprietary Assets whose value would
be unimpaired by disclosure). Without limiting the generality of the foregoing,
except as set forth in Part 2.9(b) of the Company Disclosure Schedule, (i) all
current and former employees of the Company who are or were involved in, or who
have contributed to, the creation or development of any material Company
Proprietary Asset have executed and delivered to the Company an agreement
(containing no exceptions to or exclusions from the scope of its coverage) that
is substantially identical to the form of Non-Disclosure Agreement previously
delivered by the Company to Parent, and (ii) all current and former consultants
and independent contractors to the Company who are or were involved in, or who
have contributed to, the creation or development of any material Company
Proprietary Asset have executed and delivered to the Company an agreement
(containing no exceptions to or exclusions from the scope of its coverage) that
is substantially identical to the form of Consultant Confidential Information
and Invention Assignment Agreement previously delivered to Parent. No current or
former employee, officer, director, stockholder, consultant or independent
contractor has any valid right, claim or interest in or with respect to any
Company Proprietary Asset.

            (c) Except as set forth in Part 2.9(c) of the Company Disclosure
Schedule: (i) all trademarks, service marks, copyrights, and to the knowledge of
the Company, patents, held by the Company are valid, enforceable and subsisting;
(ii) none of the Company Proprietary Assets and no Proprietary Asset that is
currently being developed by the Company (either by itself or with any other
Person) infringes, misappropriates or conflicts with any Proprietary Asset owned
or used by any other Person; (iii) none of the products that are or have been
designed, created, developed, assembled, manufactured or sold by the Company is
infringing, misappropriating or making any unlawful or unauthorized use of any
Proprietary Asset owned or used by any other Person, and none of such products
has at any time infringed, misappropriated or made any unlawful or unauthorized
use of, and the Company has not received any notice or other communication (in
writing or


                                       13
<PAGE>   20
otherwise) of any actual, alleged, possible or potential infringement,
misappropriation or unlawful or unauthorized use of, any Proprietary Asset owned
or used by any other Person; and (iv) no other Person is infringing,
misappropriating or making any unlawful or unauthorized use of, and no
Proprietary Asset owned or used by any other Person infringes or conflicts with,
any material Company Proprietary Asset.

            (d) The Company Proprietary Assets constitute all the Proprietary
Assets necessary to enable the Company to conduct its business in the manner in
which such business has been and is being conducted and in the manner in which
such business is currently proposed to be conducted by the Company. The Company
has not (i) licensed any of the material Company Proprietary Assets to any
Person on an exclusive basis, or (ii) entered into any covenant not to compete
or Contract limiting its ability to exploit fully any material Company
Proprietary Assets or to transact business in any market or geographical area or
with any Person.

            (e) Except as set forth in Part 2.9(e)(i) of the Company Disclosure
Schedule, the Company has not disclosed or delivered to any Person, or permitted
the disclosure or delivery to any escrow agent or other Person, of the source
code, or any portion or aspect of the source code, or any proprietary
information or algorithm contained in any source code, of any Company
Proprietary Asset. Part 2.10(a)(ii) of the Company Disclosure Schedule
identifies each Contract pursuant to which the Company has deposited or is
required to deposit with an escrowholder or any other Person the source code, or
any portion or aspect of the source code, or any proprietary information or
algorithm contained in or relating to any source code, of any Company
Proprietary Asset (the "Escrow Contracts"), and further describes whether the
execution of this Agreement or the consummation of any of the transactions
contemplated hereby could reasonably be expected to result in the release or
disclosure of the source code, or any portion or aspect of the source code, or
any proprietary information or algorithm contained in or relating to any source
code, of any material Company Proprietary Asset. To the Company's knowledge, no
event has occurred, and no circumstance or condition exists, that (with or
without notice or lapse of time) will, or could reasonably be expected to,
result in the disclosure or delivery to any Person of the source code, or any
portion or aspect of the source code, or any proprietary information or
algorithm contained in any source code, of any material Company Proprietary
Asset, pursuant to the terms of any Escrow Contract.

      2.10 CONTRACTS.

            (a) Part 2.10 of the Company Disclosure Schedule identifies each
Company Contract that constitutes a "Material Contract" that has not already
been disclosed in the Company SEC Documents. (For purposes of this Agreement,
each of the following and each of the Contracts filed as part of the Company SEC
Documents shall be deemed to constitute a "Material Contract"):


                  (i) any Contract relating to the employment of, or the
      performance of services by, any employee or consultant, and any Contract
      pursuant to which the Company is or may become obligated to make any
      severance, termination, bonus or relocation payment or any other payment
      (other than payments in respect of salary) in excess of $60,000, to any
      current or former employee or director;


                                       14
<PAGE>   21
                  (ii) any Contract (A) relating to the acquisition, transfer,
      development, sharing or license of any Proprietary Asset (except for any
      Contract pursuant to which (1) any Proprietary Asset is licensed to the
      Company under any third party software license generally available to the
      public, or (2) any Proprietary Asset is licensed by the Company to any
      Person on a non-exclusive basis); or (B) of the type referred to in
      Section 2.9(e);

                  (iii) any Contract which provides for indemnification of any
      officer, director, employee or agent;

                  (iv) any Contract imposing any material restriction on the
      right or ability of the Company (A) to engage in any line of business or
      to compete with any Person or grant any exclusive distribution rights, (B)
      to acquire any product or other asset or any services from any other
      Person, to sell any product or other asset to or perform any services for
      any other Person or to transact business or deal in any other manner with
      any other Person, or (C) develop or distribute any technology;

                  (v) any Contract (A) relating to the acquisition, issuance,
      voting, registration, sale or transfer of any securities, (B) providing
      any Person with any preemptive right, right of participation, right of
      maintenance or any similar right with respect to any securities, or (C)
      providing the Company with any right of first refusal with respect to, or
      right to repurchase or redeem, any securities;

                  (vi) any Contract requiring that the Company give any notice
      or provide any information to any Person prior to accepting any
      Acquisition Proposal;

                  (vii) any Contract (excluding the Company's non-exclusive
      license agreements of its products entered into in the ordinary course of
      the Company's business) that has a term of more than 60 days and that may
      not be terminated by the Company (without penalty) within 60 days after
      the delivery of a termination notice by the Company;

                  (viii) any Contract that contemplates or involves (A) the
      payment or delivery of cash or other consideration on or after the date
      hereof having a value in excess of $60,000 in the aggregate or (B) the
      performance of services on or after the date hereof having a value in
      excess of $60,000 in the aggregate;

                  (ix) any Contract to which any Governmental Body is a party or
      under which any Governmental Body has any rights or obligations; and

                  (x) any other Contract, not otherwise identified in clauses
      "(i)" through "(ix)", if the Company's performance or breach of such
      Contract could reasonably be expected to have a Material Adverse Effect on
      the Company.

            (b) To the Company's knowledge, each Company Contract that
constitutes a Material Contract is valid and in full force and effect, and is
enforceable in accordance with its


                                       15
<PAGE>   22
terms, subject to (i) laws of general application relating to bankruptcy,
insolvency and the relief of debtors, and (ii) rules of law governing specific
performance, injunctive relief and other equitable remedies.

            (c) Except as set forth in Part 2.10 of the Company Disclosure
Schedule: (i) the Company has not violated or breached, or committed any default
under, any Material Contract, and, to the knowledge of the Company, no other
Person has violated or breached, or committed any default under, any Material
Contract; (ii) to the knowledge of the Company, no event has occurred, and no
circumstance or condition exists, that (with or without notice or lapse of time)
could reasonably be expected to (A) result in a violation or breach of any of
the provisions of any Material Contract, (B) give any Person the right to
declare a default or exercise any remedy under any Material Contract, (C) give
any Person the right to a rebate, chargeback, penalty or change in delivery
schedule under any Material Contract, (D) give any Person the right to
accelerate the maturity or performance of any Material Contract, or (E) give any
Person the right to cancel, terminate or modify any Material Contract; (iii)
since June 30, 1995, the Company has not received any notice or other
communication regarding any actual or possible violation or breach of, or
default under, any Material Contract; and (iv) the Company has not waived any of
its material rights under any Material Contract.

            (d) The Company is not currently renegotiating, any amount paid or
payable to the Company under any Material Contract, or any other material term
or provision of any Material Contract.

      2.11 LIABILITIES. As of the date of this Agreement, except as set forth in
the Company SEC Documents, the Company does not have any accrued, contingent or
other liabilities of any nature, either matured or unmatured except for: (a)
liabilities that would be required under generally accepted accounting
principles to be disclosed on a balance sheet of the Company, and (b) recurring
liabilities that have been incurred by the Company in the ordinary course of
business and consistent with past practices.

      2.12 COMPLIANCE WITH LEGAL REQUIREMENTS. The Company is, and has at all
times since inception been, in compliance with all applicable Legal
Requirements, except where the failure to comply with such Legal Requirements
has not had and could not reasonably be expected to have a Material Adverse
Effect on the Company.

      2.13 CERTAIN BUSINESS PRACTICES. Neither the Company nor any director,
officer, agent or employee of the Company has (i) used any funds for unlawful
contributions, gifts, entertainment or other unlawful expenses relating to
political activity, (ii) made any unlawful payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns or violated any provision of the Foreign Corrupt Practices Act of
1977, as amended, or (iii) made any other unlawful payment.

      2.14 GOVERNMENTAL AUTHORIZATIONS. The Company holds all Governmental
Authorizations necessary to enable the Company to conduct its business in the
manner in which such business is currently being conducted except where failure
to so hold such Governmental


                                       16
<PAGE>   23
Authorization would not have a Material Adverse Effect on the Company. All such
Governmental Authorizations are valid and in full force and effect. The Company
is, and at all times since inception has been, in substantial compliance with
the terms and requirements of such Governmental Authorizations.

      2.15 TAX MATTERS.

            (a) All Tax Returns required to be filed by or on behalf of the
Company with any Governmental Body with respect to any taxable period ending on
or before the Closing Date (the "Company Returns") (i) have been or will be
filed on or before the applicable due date (including any extensions of such due
date), and (ii) have been, or will be when filed, prepared in all material
respects in compliance with all applicable Legal Requirements. All amounts shown
on the Company Returns to be due on or before the Closing Date have been or will
be paid on or before the Closing Date.

            (b) The Company Financial Statements fully accrue all actual and
contingent liabilities for Taxes with respect to all periods through the dates
thereof in accordance with generally accepted accounting principles.

            (c) No Company Return has ever been examined or audited by any
Governmental Body. No extension or waiver of the limitation period applicable to
any of the Company Returns has been granted (by the Company or any other
Person), and no such extension or waiver has been requested from the Company.

            (d) No claim or Legal Proceeding is pending or, to the knowledge of
the Company, has been threatened against or with respect to the Company in
respect of any material Tax. There are no unsatisfied liabilities for material
Taxes (including liabilities for interest, additions to tax and penalties
thereon and related expenses) with respect to any notice of deficiency or
similar document received by the Company with respect to any material Tax (other
than liabilities for Taxes asserted under any such notice of deficiency or
similar document which are being contested in good faith by the Company and with
respect to which adequate reserves for payment have been established). There are
no liens for material Taxes upon any of the assets of the Company except liens
for current Taxes not yet due and payable. The Company has not entered into or
become bound by any agreement or consent pursuant to Section 341(f) of the Code.
The Company has not been, nor will be, required to include any adjustment in
taxable income for any tax period (or portion thereof) pursuant to Section 481
or 263A of the Code or any comparable provision under state or foreign Tax laws
as a result of transactions or events occurring, or accounting methods employed,
prior to the Closing.

            (e) There is no agreement, plan, arrangement or other Contract
covering any employee or independent contractor or former employee or
independent contractor of the Company that, considered individually or
considered collectively with any other such Contracts, will, or could reasonably
be expected to, give rise directly or indirectly to the payment of any amount
that would not be deductible pursuant to Section 280G or Section 162 of the Code
as a result of the transactions contemplated by this Agreement.


                                       17
<PAGE>   24
      2.16 EMPLOYEE AND LABOR MATTERS; BENEFIT PLANS.

            (a) Part 2.16(a) of the Company Disclosure Schedule identifies each
salary, bonus, deferred compensation, incentive compensation, stock purchase,
stock option, severance pay, termination pay, hospitalization, medical, life or
other insurance, supplemental unemployment benefits, profit-sharing, pension or
retirement plan, program or agreement (collectively, the "Plans") sponsored,
maintained, contributed to or required to be contributed to by the Company for
the benefit of any current or former employee of the Company.

            (b) Except as set forth in Part 2.16(a) of the Company Disclosure
Schedule, the Company does not maintain, sponsor or contribute to, nor has at
any time in the past maintained, sponsored or contributed to, any employee
pension benefit plan (as defined in Section 3(2) of the Employee Retirement
Income Security Act of 1974, as amended ("ERISA"), whether or not excluded from
coverage under specific Titles or Merger Subtitles of ERISA) for the benefit of
employees or former employees of the Company (a "Pension Plan").

            (c) Except as set forth in Part 2.16(a) of the Company Disclosure
Schedule, the Company does not maintain, sponsor or contribute to any: (i)
employee welfare benefit plan (as defined in Section 3(1) of ERISA, whether or
not excluded from coverage under specific Titles or Merger Subtitles of ERISA)
for the benefit of any employees or former employees of the Company (a "Welfare
Plan"), or (ii) self-funded medical, dental or other similar Plan. None of the
Plans identified in the Company Disclosure Schedule is a multiemployer plan
(within the meaning of Section 3(37) of ERISA).

            (d) With respect to each Plan, the Company has made available to
Parent: (i) an accurate and complete copy of such Plan (including all amendments
thereto); (ii) an accurate and complete copy of the annual report, if required
under ERISA, with respect to such Plan for the last two years; (iii) an accurate
and complete copy of the most recent summary plan description, together with
each Summary of Material Modifications, if required under ERISA, with respect to
such Plan, (iv) if such Plan is funded through a trust or any third party
funding vehicle, an accurate and complete copy of the trust or other funding
agreement (including all amendments thereto) and accurate and complete copies
the most recent financial statements thereof; (v) accurate and complete copies
of all Contracts relating to such Plan, including service provider agreements,
insurance contracts, minimum premium contracts, stop-loss agreements, investment
management agreements, subscription and participation agreements and
recordkeeping agreements; and (vi) an accurate and complete copy of the most
recent determination letter received from the Internal Revenue Service with
respect to such Plan (if such Plan is intended to be qualified under Section
401(a) of the Code).

            (e) The Company is not and has never been required to be treated as
a single employer with any other Person under Section 4001(b)(1) of ERISA or
Section 414(b), (c), (m) or (o) of the Code. The Company has never been a member
of an "affiliated service group" within the meaning of Section 414(m) of the
Code. The Company has never made a complete or partial withdrawal from a
multiemployer plan, as such term is defined in Section 3(37) of ERISA, resulting
in "withdrawal liability," as such term is defined in Section 4201 of ERISA
(without regard to subsequent reduction or waiver of such liability under either
Section 4207 or 4208 of ERISA).


                                       18
<PAGE>   25
            (f) The Company does not have any plan or commitment to create any
Welfare Plan or any additional Pension Plan, or to modify or change any existing
Pension Plan (other than to comply with applicable law) in a manner that would
affect any employee of the Company.

            (g) No Plan provides death, medical or health benefits (whether or
not insured) with respect to any current or former employee of the Company after
any such employee's termination of service (other than (i) benefit coverage
mandated by applicable law, including coverage provided pursuant to Section
4980B of the Code, (ii) deferred compensation benefits accrued as liabilities on
the Company Unaudited Interim Balance Sheet, and (iii) benefits the full cost of
which are borne by current or former employees of the Company (or the employees'
beneficiaries)).

            (h) With respect to any Plan constituting a group health plan within
the meaning of Section 4980B(g)(2) of the Code, the provisions of Section 4980B
of the Code ("COBRA") have been complied with in all material respects. Part
2.16(h) of the Company Disclosure Schedule describes all obligations of the
Company as of the date of this Agreement under any of the provisions of COBRA.

            (i) Each of the Plans has been operated and administered in all
material respects in accordance with applicable Legal Requirements, including
but not limited to ERISA and the Code.

            (j) Each of the Plans intended to be qualified under Section 401(a)
of the Code has received a favorable determination from the Internal Revenue
Service, and the Company is not aware of any reason why any such determination
letter should be revoked.

            (k) Neither the execution, delivery or performance of this
Agreement, nor the consummation of the Merger or any of the other transactions
contemplated by this Agreement, will result in any payment (including any bonus,
golden parachute or severance payment) to any current or former employee or
director of the Company (whether or not under any Plan), or materially increase
the benefits payable under any Plan, or result in any acceleration of the time
of payment or vesting of any such benefits.

            (l) Part 2.16(l) of the Company Disclosure Schedule contains a list
of all salaried employees of the Company as of the date of this Agreement, and
correctly reflects, in all material respects, their salaries, any other
compensation payable to them (including compensation payable pursuant to bonus,
deferred compensation or commission arrangements), their dates of employment and
their positions. The Company is not a party to any collective bargaining
contract or other Contract with a labor union involving any of its employees.
All of the employees of the Company are "at will" employees.


                                       19
<PAGE>   26
            (m) Part 2.16(m) of the Company Disclosure Schedule identifies each
Employee who is not fully available to perform work because of disability or
other leave and sets forth the basis of such leave and the anticipated date of
return to full service.

            (n) The Company does not have any knowledge of any facts indicating
that (i) the consummation of the Merger or any of the other transactions
contemplated by this Agreement will have a Material Adverse Effect on the labor
relations of the Company, or (ii) any of the employees of the Company intends to
terminate his or her employment with the Company, except for such terminations
that either individually or taken together with all other such terminations,
would not have a Material Adverse Effect on the Company.

      2.17 ENVIRONMENTAL MATTERS. The Company is in compliance in all material
respects with all applicable Environmental Laws, which compliance includes the
possession by the Company of all permits and other Governmental Authorizations
required under applicable Environmental Laws, and compliance with the terms and
conditions thereof. The Company has not received any notice from a Governmental
Body, that alleges that the Company is not in compliance with any Environmental
Law, and, to the knowledge of the Company, there are no circumstances that may
prevent or interfere with the compliance by the Company with any Environmental
Law in the future. To the knowledge of the Company, no current or prior owner of
any property leased or controlled by the Company has received any notice from a
Government Body that alleges that such current or prior owner or the Company is
not in compliance with any Environmental Law. To the knowledge of the Company,
all property that is leased to, controlled by or used by the Company, and all
surface water, groundwater and soil associated with or adjacent to such property
is in clean and healthful condition and is free of any material environmental
contamination of any nature. (For purposes of this Section 2.17: (i)
"Environmental Law" means any federal, state, local or foreign Legal Requirement
relating to pollution or protection of human health or the environment
(including ambient air, surface water, ground water, land surface or subsurface
strata), including any law or regulation relating to emissions, discharges,
releases or threatened releases of Materials of Environmental Concern, or
otherwise relating to the manufacture, processing, distribution, use, treatment,
storage, disposal, transport or handling of Materials of Environmental Concern;
and (ii) "Materials of Environmental Concern" include chemicals, pollutants,
contaminants, wastes, toxic substances, petroleum and petroleum products and any
other substance that is now or hereafter regulated by any Environmental Law or
that is otherwise a danger to health, reproduction or the environment.)

      2.18 INSURANCE. The Company has made available to Parent a copy of all
material insurance policies relating to the business, assets and operations of
the Company. Each of such insurance policies is in full force and effect. Since
December 31, 1996, the Company has not received any notice or other
communication regarding any actual or possible (a) cancellation or invalidation
of any insurance policy, (b) refusal of any coverage or rejection of any
material claim under any insurance policy, or (c) material adjustment in the
amount of the premiums payable with respect to any insurance policy. Except as
set forth in Part 2.18 of the Company Disclosure Schedule, there is no pending
claim (including any workers' compensation claim) under or based upon any
insurance policy of the Company.


                                       20
<PAGE>   27
      2.19 TRANSACTIONS WITH AFFILIATES. Except as set forth in the Company SEC
Documents and Part 2.19 of the Company Disclosure Schedule, since the date of
the Company's last proxy statement filed with the SEC, no event has occurred
that would be required to be reported by the Company pursuant to Item 404 of
Regulation S-K promulgated by the SEC. Part 2.19 of the Company Disclosure
Schedule identifies each person who is an "affiliate" (as that term is used in
Rule 145 under the Securities Act) of the Company as of the date of this
Agreement.

      2.20 LEGAL PROCEEDINGS; ORDERS.

            (a) There is no pending Legal Proceeding, and (to the knowledge of
the Company) no Person has threatened to commence any Legal Proceeding: (i) that
involves the Company or any of the assets owned or used by the Company which
alone or in the aggregate has had or would have a Material Adverse Effect on the
Company; or (ii) that challenges, or that may have the effect of preventing,
delaying, making illegal or otherwise interfering with, the Merger or any of the
other transactions contemplated by this Agreement. To the knowledge of the
Company, no event has occurred, and no claim, dispute or other condition or
circumstance exists, that could reasonably be expected to, give rise to or serve
as a basis for the commencement of any such Legal Proceeding that would have a
Material Adverse Effect on the Company.

            (b) There is no material order, writ, injunction, judgment or decree
to which the Company, or any of the assets owned or used by the Company, is
subject. To the knowledge of the Company, no officer or key employee of the
Company is subject to any order, writ, injunction, judgment or decree that
prohibits such officer or other employee from engaging in or continuing any
conduct, activity or practice relating to the business of the Company.

      2.21 AUTHORITY; BINDING NATURE OF AGREEMENT. The Company has the requisite
corporate power and authority to enter into and to perform its obligations under
this Agreement, subject to the approval of this Agreement by the Required
Company Stockholder Vote. The Board of Directors of the Company (at a meeting
duly called and held) has (a) unanimously determined that the Merger is
advisable and fair and in the best interests of the Company and its
stockholders, (b) unanimously authorized and approved the execution, delivery
and performance of this Agreement by the Company and unanimously approved the
Merger, and (c) unanimously recommended the approval of this Agreement and the
Merger by the holders of Company Common Stock and directed that this Agreement
and the Merger be submitted for consideration by the Company's stockholders at
the Company Stockholders' Meeting (as defined in Section 5.2). This Agreement
constitutes the legal, valid and binding obligation of the Company, enforceable
against the Company in accordance with its terms, subject to (i) laws of general
application relating to bankruptcy, insolvency and the relief of debtors, and
(ii) rules of law governing specific performance, injunctive relief and other
equitable remedies.

      2.22 NO EXISTING DISCUSSIONS. During the period between August 26, 1997,
the date on which the parties entered into a non-solicitation agreement, and the
date of this Agreement, neither the Company nor any Representative of the
Company, is or was engaged, directly or indirectly, in any discussions or
negotiations with any other Person relating to any Acquisition Proposal.


                                       21
<PAGE>   28
      2.23 ACCOUNTING MATTERS. To the knowledge of the Company, neither the
Company nor any affiliate (as that term is used in Rule 145 under the Securities
Act) of the Company has taken or agreed to take, or plans to take, any action
that could prevent Parent from accounting for the Merger as a "pooling of
interests." Ernst & Young LLP has confirmed orally to the Company, Parent, and
Price Waterhouse LLP, that, after having reviewed the transactions contemplated
by this Agreement and having conducted a reasonable investigation of the
Company, Ernst & Young LLP is not aware of any fact concerning the Company that
could preclude Parent from accounting for the Merger as a "pooling of
interests."

      2.24 VOTE REQUIRED. The affirmative vote of the holders of a majority of
the shares of Company Common Stock outstanding on the record date for the
Company Stockholders' Meeting (the "Required Company Stockholder Vote") is the
only vote of the holders of any class or series of the Company's capital stock
necessary to approve this Agreement, the Merger and the other transactions
contemplated by this Agreement.

      2.25 NON-CONTRAVENTION; CONSENTS. Neither (1) the execution, delivery or
performance of this Agreement or any of the other agreements referred to in this
Agreement, nor (2) the consummation of the Merger or any of the other
transactions contemplated by this Agreement, will directly or indirectly (with
or without notice or lapse of time):

            (a) contravene, conflict with or result in a violation of (i) any of
the provisions of the certificate of incorporation, bylaws or other charter or
organizational documents of the Company, as amended, or (ii) any resolution
adopted by the stockholders, the Board of Directors or any committee of the
Board of Directors of the Company;

            (b) contravene, conflict with or result in a violation of, or give
any Governmental Body or other Person the right to challenge the Merger or any
of the other transactions contemplated by this Agreement or to exercise any
remedy or obtain any relief under, any Legal Requirement or any order, writ,
injunction, judgment or decree to which the Company, or any of the assets owned
or used by the Company, is subject;

            (c) contravene, conflict with or result in a violation of any of the
terms or requirements of, or give any Governmental Body the right to revoke,
withdraw, suspend, cancel, terminate or modify, any Governmental Authorization
that is held by the Company or that otherwise relates to the business of the
Company or to any of the assets owned or used by the Company;

            (d) contravene, conflict with or result in a violation or breach of,
or result in a default under (or an event which with notice or lapse of time or
both would become a default), any provision of any Material Contract, or give
any Person the right to (i) declare a default or exercise any remedy under any
such Material Contract, (ii) a rebate, chargeback, penalty or change in delivery
schedule under any such Material Contract, (iii) accelerate the maturity or
performance of any such Material Contract, or (iv) cancel, terminate or modify
any term of such Material Contract;


                                       22
<PAGE>   29
            (e) result in the imposition or creation of any Encumbrance upon or
with respect to any asset owned or used by the Company (except for liens that
will not, in any case or in the aggregate, have a Material Adverse Effect on the
Company); or

            (f) result in, or increase the likelihood of, the disclosure or
delivery to any escrowholder or other Person of the source code, or any portion
or aspect of the source code, or any proprietary information or algorithm
contained in or relating to any source code, of any material Company Proprietary
Asset, or the transfer of any material asset of the Company to any Person
pursuant to any Escrow Contract.

Except as may be required by the Exchange Act, the DGCL, and the NASD Bylaws (as
they relate to the Form S-4 Registration Statement and the Joint Proxy
Statement) the Company has not been, is not or will not be required to make any
filing with or give any notice to, or to obtain any Consent from, any Person in
connection with (i) the execution, delivery or performance of this Agreement or
any of the other agreements referred to in this Agreement, or (ii) the
consummation of the Merger or any of the other transactions contemplated by this
Agreement.

      2.26 FAIRNESS OPINION. The Company's Board of Directors has received the
written opinion of CIBC Wood Gundy, financial advisor to the Company, dated the
date of this Agreement, to the effect that the consideration to be received by
the stockholders of the Company in the Merger is fair to the stockholders of the
Company from a financial point of view. The Company has furnished an accurate
and complete copy of said written opinion to Parent.

      2.27 FINANCIAL ADVISOR. Except for CIBC Wood Gundy, no broker, finder or
investment banker is entitled to any brokerage, finder's or other fee or
commission in connection with the Merger or any of the other transactions
contemplated by this Agreement based upon arrangements made by or on behalf of
the Company. The fees and expenses of all accountants, brokers, financial
advisors, legal counsel and other Persons retained by the Company in connection
with the negotiation and effectuation of this Agreement and the transactions
contemplated hereby incurred or to be incurred by the Company will not exceed
$500,000 in the aggregate. The Company has furnished to Parent accurate and
complete copies of all agreements under which any such fees, commissions or
other amounts have been paid or may become payable and all indemnification and
other agreements related to the engagement of CIBC Wood Gundy.

      2.28 SECTION 203 OF THE DGCL NOT APPLICABLE. As of the date hereof and at
all times on or prior to the Effective Time, the restrictions applicable to
business combinations contained in Section 203 of the DGCL are, and will be,
inapplicable to the execution, delivery and performance of this Agreement and to
the consummation of the Merger and the other transactions contemplated by this
Agreement. Prior to the execution of those Voting Agreements, in the form of
Exhibit G, of even date herewith between Parent and each of the individuals
identified on Exhibit H, the Board of Directors of the Company approved said
Voting Agreements and the transactions contemplated thereby.

SECTION 3. REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB


                                       23
<PAGE>   30
      Parent and Merger Sub represent and warrant to the Company that, except as
set forth in the Parent SEC Documents (as defined in Section 3.4(a)) or in the
Parent Disclosure Schedule:

      3.1 ORGANIZATION, STANDING AND POWER. Parent and Merger Sub are
corporations duly organized, validly existing and in good standing under the
laws of the State of Delaware. Each of Parent and Merger Sub has the corporate
power to own its properties and to carry on its business as now being conducted
and is duly qualified to do business and is in good standing in each
jurisdiction in which the failure to be so qualified would have a Material
Adverse Effect on Parent and Merger Sub.

      3.2 CERTIFICATE OF INCORPORATION AND BYLAWS. Parent has delivered to the
Company accurate and complete copies of the certificate of incorporation, bylaws
and other charter and organizational documents of Parent and the Merger Sub, in
each case as amended as of the date hereof.

      3.3 CAPITALIZATION, ETC.

            (a) The authorized capital stock of Parent consists of: (i)
25,000,000 shares of Parent Common Stock, of which 6,474,096 shares have been
issued and are outstanding and of which no shares are held by Parent in its
treasury as of the date of this Agreement; and (ii) 5,000,000 shares of Parent
Preferred Stock, $0.001 par value per share, of which no shares are outstanding
or are held by the Company in its treasury. All of the outstanding shares of
Parent Common Stock have been duly authorized and validly issued, and are fully
paid and nonassessable. Except as set forth in Part 3.3(a)(i) of the Parent
Disclosure Schedule: (i) none of the outstanding shares of Parent Common Stock
is entitled or subject to any preemptive right, right of participation, right of
maintenance or any similar right; (ii) none of the outstanding shares of Parent
Common Stock is subject to any right of first refusal in favor of Parent; and
(iii) there is no Parent Contract relating to the voting or registration of, or
restricting any Person from purchasing, selling, pledging or otherwise disposing
of (or granting any option or similar right with respect to), any shares of
Parent Common Stock. Parent is not under any obligation, nor is bound by any
Contract pursuant to which it may become obligated, to repurchase, redeem or
otherwise acquire any outstanding shares of Parent Common Stock.

            (b) At the close of business on September 25, 1997: (i) 316,707
shares of Parent Common Stock were subject to issuance pursuant to outstanding
options to purchase Parent Common Stock under Parent's 1987 Stock Option Plan;
(ii) 352,068 shares of Parent Common Stock were subject to issuance pursuant to
outstanding options to purchase Parent Common Stock under Parent's 1995 Stock
Option Plan; (iii) 62,500 shares of Parent Common Stock were subject to issuance
pursuant to outstanding options to purchase Parent Common Stock under Parent's
1995 Non-Employee Director's Stock Option Plan; (iv) 110,302 shares of Parent
Common Stock were subject to issuance pursuant to rights to purchase Parent
Common Stock under Parent's 1995 Employee Stock Purchase Plan; and (v) 26,587
shares of Parent Common Stock were subject to issuance pursuant to outstanding
options granted outside of any Parent stock option plan. (Stock options granted
by Parent pursuant to the 1995 Stock Option Plan, pursuant to the 1995 Non-


                                       24
<PAGE>   31
Employee Director's Stock Option Plan, pursuant to the 1987 Stock Option Plan
and outside of any stock option plan are referred to in this Agreement as
"Parent Options." The 1995 Stock Option Plan, the 1987 Stock Option Plan, and
the 1995 Non-Employee Director's Stock Option Plan are collectively referred to
as "Parent's Stock Plans.") Part 3.3(b) of the Parent Disclosure Schedule sets
forth the following information with respect to each Parent Option outstanding
as of September 25, 1997, (i) the particular plan pursuant to which such Parent
Option was granted; (ii) the name of the optionee; (iii) the number of shares of
Parent Common Stock subject to such Parent Option; (iv) the exercise price of
such Parent Option; (v) the date on which such Parent Option was granted; (vi)
the applicable vesting schedules, and the extent to which such Parent Option is
vested and exercisable as of September 25, 1997, and (vii) the date on which
such Parent Option expires.

            (c) Except for shares to be issued pursuant to rights to purchase
Parent Common Stock under Parent's 1995 Employee Stock Purchase Plan and Parent
Options, there is no: (i) outstanding subscription, option, call, warrant or
right (whether or not currently exercisable) to acquire any shares of the
capital stock or other securities of Parent; (ii) outstanding security,
instrument or obligation that is or may become convertible into or exchangeable
for any shares of the capital stock or other securities of Parent; (iii)
stockholder rights plan (or similar plan commonly referred to as a "poison
pill") or Contract under which Parent is or may become obligated to sell or
otherwise issue any shares of its capital stock or any other securities; or (iv)
condition or circumstance that may give rise to or provide a basis for the
assertion of a claim by any Person to the effect that such Person is entitled to
acquire or receive any shares of capital stock or other securities of Parent.

            (d) All outstanding shares of Parent Common Stock, all outstanding
Parent Options, and all outstanding warrants to purchase Parent Common Stock
have been issued and granted in compliance with (i) all applicable securities
laws and other applicable Legal Requirements, and (ii) all requirements set
forth in applicable Contracts.

      3.4 SEC FILINGS; FINANCIAL STATEMENTS.

            (a) Parent has delivered to the Company accurate and complete copies
of all registration statements, proxy statements, and other statements, reports,
schedules, forms and other documents filed by the Company with the SEC since
December 31, 1996 (the "Parent SEC Documents") including the Company's
registration statement on Form S-1 filed with the SEC on November 1995. All
statements, reports, schedules, forms and other documents required to be filed
by Parent with the SEC have been so filed. As of the time it was filed with the
SEC (or, if amended or superseded by a filing prior to the date of this
Agreement, then on the date of such filing): (i) each of the Parent SEC
Documents complied in all material respects with the applicable requirements of
the Securities Act or the Exchange Act (as the case may be); and (ii) none of
the Parent SEC Documents contained any untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary in
order to make the statements therein, in the light of the circumstances under
which they were made, not misleading.

            (b) The consolidated financial statements contained in the Parent
SEC Documents ("Parent Financial Statements"): (i) complied as to form in all
material respects with the published


                                       25
<PAGE>   32
rules and regulations of the SEC applicable thereto; (ii) were prepared in
accordance with generally accepted accounting principles applied on a consistent
basis throughout the periods covered (except as may be indicated in the notes to
such financial statements and, in the case of unaudited statements, as permitted
by Form 10-Q of the SEC, and except that unaudited financial statements may not
contain footnotes and are subject to year-end audit adjustments); and (iii)
fairly present the consolidated financial position of Parent and its
Subsidiaries as of the respective dates thereof and the consolidated results of
operations of Parent and its Subsidiaries for the periods covered thereby.

            (c) Parent has delivered to the Company an unaudited consolidated
balance sheet of Parent as of June 30, 1997 (the "Parent Unaudited Interim
Balance Sheet"), and the related unaudited consolidated statement of operations,
statement of stockholders' equity and statement of cash flows of Parent for the
quarter then ended. The financial statements referred to in this Section 3.4(c):
(i) were prepared in accordance with generally accepted accounting principles
applied on a basis consistent with the basis on which the financial statements
referred to in Section 3.4(b) were prepared (except that such financial
statements do not contain footnotes and are subject to normal and recurring
year-end adjustments which will not, individually or in the aggregate, be
material in amount), and (ii) fairly present the consolidated financial position
of Parent as of June 30, 1997 thereof and the consolidated results of operations
and cash flows of Parent for the six months ended June 30, 1997.

      3.5 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as disclosed in the
Parent SEC Documents, since June 30, 1997:

            (a) there has not been any Material Adverse Effect on Parent;

            (b) Parent has not declared, accrued, set aside or paid any
dividend;

            (c) Parent has not amended or waived any of its rights under, or
permitted the acceleration of vesting under, (i) any provision of any of the
Parent's Stock Plans, (ii) any provision of any agreement evidencing any
outstanding Parent Option, (iii) or any restricted stock purchase agreement;

            (d) except in the ordinary course of business and consistent with
past practices, Parent has not (i) entered into or permitted any of the assets
owned or used by it to become bound by any Material Contract (as defined in
Section 3.10), or (ii) amended or terminated, or waived any material right or
remedy under, any Material Contract;

            (e) Parent has not (i) acquired, leased or licensed any material
right or other material asset from any other Person, (ii) sold or otherwise
disposed of, or leased or licensed, any material right or other material asset
to any other Person, or (iii) waived or relinquished any right, except for
rights or other assets acquired, leased, licensed or disposed of in the ordinary
course of business and consistent with past practices;


                                       26
<PAGE>   33
            (f) Parent has not made any pledge of any of its assets or otherwise
permitted any of its assets to become subject to any Encumbrance, except for
pledges of immaterial assets made in the ordinary course of business and
consistent with past practices;

            (g) Parent has not changed any of its methods of accounting or
accounting practices (i) having a Material Adverse Effect on Parent or (ii) that
may have an effect on rules and regulations related to pooling of interests
accounting, except insofar as such change is required by a change in generally
accepted accounting principles;

            (h) Parent has not made any Tax election that could have a Material
Adverse Effect on Parent;

            (i) Parent has not entered into any material transaction or taken
any other material action outside the ordinary course of business or
inconsistent with past practices; and

            (j) Parent has not agreed or committed to take any of the actions
referred to in clauses "(c)" through "(i)" above.

      3.6 TITLE TO ASSETS. Parent owns, and has good, valid and marketable title
to, all assets purported to be owned by it, including: (a) all assets reflected
on the Parent Financial Documents; and (b) all other assets reflected in the
books and records of Parent as being owned by Parent. All of said assets are
owned by Parent free and clear of any Encumbrances, except for (i) any lien for
current taxes not yet due and payable, (ii) liens that have arisen in the
ordinary course of business and that do not (in any case or in the aggregate)
materially detract from the value of the assets subject thereto or materially
impair the operations of Parent, and (iii) liens described in Part 3.6 of the
Parent Disclosure Schedule.

      3.7 RECEIVABLES. All existing accounts receivable of Parent (a) represent
valid obligations of customers of Parent arising from bona fide transactions
entered into in the ordinary course of business, (b) are current and, to
Parent's knowledge will be collected in full when due, without any counterclaim
or set off (net of an allowance for doubtful accounts not to exceed $316,000 in
the aggregate).

      3.8 REAL PROPERTY; EQUIPMENT; LEASEHOLD. Parent does not own any real
property or any interest in real property, except for the leasehold created
under the real property lease listed on Part 3.8(a) of the Parent Disclosure
Schedule.


                                       27
<PAGE>   34
      3.9 PROPRIETARY ASSETS.

            (a) Parent, directly or indirectly, owns or is licensed or otherwise
possesses legally enforceable rights to use all Proprietary Assets that are
material to the business of Parent as currently conducted or as proposed to be
conducted by Parent ("Parent Proprietary Assets").

            (b) Parent has taken reasonable measures and precautions to protect
and maintain the confidentiality, secrecy and value of all Material Parent
Proprietary Assets (except Parent Proprietary Assets whose value would be
unimpaired by disclosure). No current or former employee, officer, director,
stockholder, consultant or independent contractor has any valid right, claim or
interest in or with respect to any Parent Proprietary Asset.

            (c) Except as set forth in Part 3.9(c) of the Parent Disclosure
Schedule: (i) all trademarks, service marks, copyrights, and to the knowledge of
Parent, patents, held by Parent are valid, enforceable and subsisting; (ii) none
of the Parent Proprietary Assets and no Proprietary Asset that is currently
being developed by Parent (either by itself or with any other Person) infringes,
misappropriates or conflicts with any Proprietary Asset owned or used by any
other Person; (iii) none of the products that are or have been designed,
created, developed, assembled, manufactured or sold by Parent is infringing,
misappropriating or making any unlawful or unauthorized use of any Proprietary
Asset owned or used by any other Person, and none of such products has at any
time infringed, misappropriated or made any unlawful or unauthorized use of, and
Parent has not received any notice or other communication (in writing or
otherwise) of any actual, alleged, possible or potential infringement,
misappropriation or unlawful or unauthorized use of, any Proprietary Asset owned
or used by any other Person; and (iv) no other Person is infringing,
misappropriating or making any unlawful or unauthorized use of, and no
Proprietary Asset owned or used by any other Person infringes or conflicts with,
any material Parent Proprietary Asset.

            (d) Parent has not (i) licensed any of the material Parent
Proprietary Assets to any Person on an exclusive basis, or (ii) entered into any
covenant not to compete or Contract limiting its ability to exploit fully any
material Parent Proprietary Assets or to transact business in any market or
geographical area or with any Person.

            (e) Except as set forth in Part 3.9(e) of the Parent Disclosure
Schedule, Parent has not disclosed or delivered to any Person, or permitted the
disclosure or delivery to any escrow agent or other Person, of the source code,
or any portion or aspect of the source code, or any proprietary information or
algorithm contained in any source code, of any Parent Proprietary Asset. To
Parent's knowledge, no event has occurred, and no circumstance or condition
exists, that (with or without notice or lapse of time) will, or could reasonably
be expected to, result in the disclosure or delivery to any Person of the source
code, or any portion or aspect of the source code, or any proprietary
information or algorithm contained in any source code, of any material Parent
Proprietary Asset pursuant to a Contract.


                                       28
<PAGE>   35
      3.10 CONTRACTS.

            (a) Part 3.10 of the Parent Disclosure Schedule identifies each
Parent Contract that constitutes a "Parent Material Contract" that has not
already been disclosed in the Parent SEC Documents. (For purposes of this
Agreement, each of the following and each of the Contracts filed as part of the
Parent SEC Documents shall be deemed to constitute a "Parent Material
Contract"):


                  (i) any Contract relating to the employment of, or the
      performance of services by, any employee or consultant, and any Contract
      pursuant to which Parent is or may become obligated to make any severance,
      termination, bonus or relocation payment or any other payment (other than
      payments in respect of salary) in excess of $60,000, to any current or
      former employee or director;

                  (ii) any Contract (A) relating to the acquisition, transfer,
      development, sharing or license of any Proprietary Asset (except for any
      Contract pursuant to which (1) any Proprietary Asset is licensed to Parent
      under any third party software license generally available to the public,
      or (2) any Proprietary Asset is licensed by Parent to any Person on a
      non-exclusive basis); or (B) of the type referred to in Section 3.9(e);

                  (iii) any Contract which provides for indemnification of any
      officer, director, employee or agent;

                  (iv) any Contract imposing any material restriction on the
      right or ability of Parent (A) to engage in any line of business or to
      compete with any Person or grant any exclusive distribution rights, (B) to
      acquire any product or other asset or any services from any other Person,
      to sell any product or other asset to or perform any services for any
      other Person or to transact business or deal in any other manner with any
      other Person, or (C) develop or distribute any technology;

                  (v) any Contract (A) relating to the acquisition, issuance,
      voting, registration, sale or transfer of any securities, (B) providing
      any Person with any preemptive right, right of participation, right of
      maintenance or any similar right with respect to any securities, or (C)
      providing Parent with any right of first refusal with respect to, or right
      to repurchase or redeem, any securities;

                  (vi) any Contract requiring that Parent give any notice or
      provide any information to any Person prior to accepting any Acquisition
      Proposal;

                  (vii) any Contract (excluding Parent's non-exclusive license
      agreements of its products entered into in the ordinary course of Parent's
      business) that has a term of more than 60 days and that may not be
      terminated by Parent (without penalty) within 60 days after the delivery
      of a termination notice by Parent;


                                       29
<PAGE>   36
                  (viii) any Contract that contemplates or involves (A) the
      payment or delivery of cash or other consideration on or after the date
      hereof having a value in excess of $60,000 in the aggregate or (B) the
      performance of services on or after the date hereof having a value in
      excess of $60,000 in the aggregate;

                  (ix) any Contract to which any Governmental Body is a party or
      under which any Governmental Body has any rights or obligations; and

                  (x) any other Contract, not otherwise identified in clauses
      "(i)" through "(ix)", if Parent's performance or breach of such Contract
      could reasonably be expected to have a Material Adverse Effect on Parent.

            (b) To Parent's knowledge, each Parent Contract that constitutes a
Parent Material Contract is valid and in full force and effect, and is
enforceable in accordance with its terms, subject to (i) laws of general
application relating to bankruptcy, insolvency and the relief of debtors, and
(ii) rules of law governing specific performance, injunctive relief and other
equitable remedies.

            (c) Except as set forth in Part 3.10 of the Parent Disclosure
Schedule: (i) Parent has not violated or breached, or committed any default
under, any Parent Material Contract, and, to the knowledge of Parent, no other
Person has violated or breached, or committed any default under, any Parent
Material Contract; (ii) to the knowledge of Parent, no event has occurred, and
no circumstance or condition exists, that (with or without notice or lapse of
time) could reasonably be expected to (A) result in a violation or breach of any
of the provisions of any Parent Material Contract, (B) give any Person the right
to declare a default or exercise any remedy under any Parent Material Contract,
(C) give any Person the right to a rebate, chargeback, penalty or change in
delivery schedule under any Parent Material Contract, (D) give any Person the
right to accelerate the maturity or performance of any Parent Material Contract,
or (E) give any Person the right to cancel, terminate or modify any Parent
Material Contract; (iii) since June 30, 1997, Parent has not received any notice
or other communication regarding any actual or possible violation or breach of,
or default under, any Parent Material Contract; and (iv) Parent has not waived
any of its material rights under any Parent Material Contract.

            (d) Parent is not currently renegotiating, any amount paid or
payable to Parent under any Parent Material Contract, or any other material term
or provision of any Material Contract.

      3.11 LIABILITIES. As of the date of this Agreement, except as set forth in
the Parent SEC Documents, Parent does not have any accrued, contingent or other
liabilities of any nature, either matured or unmatured except for: (a)
liabilities that would be required under generally accepted accounting
principles to be disclosed on a balance sheet of Parent, and (b) recurring
liabilities that have been incurred by Parent in the ordinary course of business
and consistent with past practices.

      3.12 COMPLIANCE WITH LEGAL REQUIREMENTS. Parent is, and has at all times
since inception been, in compliance with all applicable Legal Requirements,
except where the failure to


                                       30
<PAGE>   37
comply with such Legal Requirements has not had and could not reasonably be
expected to have a Material Adverse Effect on Parent.

      3.13 CERTAIN BUSINESS PRACTICES. Neither Parent nor any director, officer,
agent or employee of Parent has (i) used any funds for unlawful contributions,
gifts, entertainment or other unlawful expenses relating to political activity,
(ii) made any unlawful payment to foreign or domestic government officials or
employees or to foreign or domestic political parties or campaigns or violated
any provision of the Foreign Corrupt Practices Act of 1977, as amended, or (iii)
made any other unlawful payment.

      3.14 GOVERNMENTAL AUTHORIZATIONS. Parent holds all material Governmental
Authorizations necessary to enable Parent to conduct its business in the manner
in which such business is currently being conducted. All such Governmental
Authorizations are valid and in full force and effect. Parent is, and at all
times since inception has been, in substantial compliance with the terms and
requirements of such Governmental Authorizations.


      3.15 TAX MATTERS.

            (a) All Tax Returns required to be filed by or on behalf of Parent
with any Governmental Body with respect to any taxable period ending on or
before the Closing Date (the "Parent Returns") (i) have been or will be filed on
or before the applicable due date (including any extensions of such due date),
and (ii) have been, or will be when filed, prepared in all material respects in
compliance with all applicable Legal Requirements. All amounts shown on the
Parent Returns to be due on or before the Closing Date have been or will be paid
on or before the Closing Date.

            (b) The Parent Financial Statements fully accrue all actual and
contingent liabilities for Taxes with respect to all periods through the dates
thereof in accordance with generally accepted accounting principles.

            (c) No Parent Return has ever been examined or audited by any
Governmental Body. No extension or waiver of the limitation period applicable to
the Parent Returns has been granted (by Parent or any other Person), and no such
extension or waiver has been requested from Parent.

            (d) No claim or Legal Proceeding is pending or, to the knowledge of
Parent, has been threatened against or with respect to Parent, in respect of any
material Tax. There are no unsatisfied liabilities for material Taxes (including
liabilities for interest, additions to tax and penalties thereon and related
expenses) with respect to any notice of deficiency or similar document received
by Parent with respect to any material Tax (other than liabilities for Taxes
asserted under any such notice of deficiency or similar document which is being
contested in good faith by Parent and with respect to which adequate reserves
for payment have been established). There are no liens for material Taxes upon
any of the assets of Parent except liens for current Taxes not yet due and
payable.


                                       31
<PAGE>   38
         3.16 EMPLOYEE AND LABOR MATTERS; BENEFIT PLANS.

                  (a) Except with respect to Parent's wholly owned subsidiary,
Parent is not, nor has ever been required to be treated as a single employer
with any other Person under Section 4001(b)(1) of ERISA or Section 414(b), (c),
(m) or (o) of the Code. Parent has never been a member of an "affiliated service
group" within the meaning of Section 414(m) of the Code. Parent has never made a
complete or partial withdrawal from a multiemployer plan, as such term is
defined in Section 3(37) of ERISA, resulting in "withdrawal liability," as such
term is defined in Section 4201 of ERISA (without regard to subsequent reduction
or waiver of such liability under either Section 4207 or 4208 of ERISA).

                  (b) Each of the Plans of Parent has been operated and
administered in all material respects in accordance with applicable Legal
Requirements, including but not limited to ERISA and the Code.

                  (c) Each of the Plans of Parent intended to be qualified under
Section 401(a) of the Code has received a favorable determination from the
Internal Revenue Service, and Parent is not aware of any reason why any such
determination letter should be revoked.

                  (d) Parent is in compliance in all material respects with all
applicable Legal Requirements and Contracts relating to employment, employment
practices, wages, bonuses and terms and conditions of employment, including
employee compensation matters.

                  (e) Parent does not have any knowledge of any facts indicating
that the consummation of the Merger or any of the other transactions
contemplated by this Agreement will have a Material Adverse Effect on the labor
relations of Parent.

         3.17 ENVIRONMENTAL MATTERS. Parent is in compliance in all material
respects with all applicable Environmental Laws, which compliance includes the
possession by Parent of all permits and other Governmental Authorizations
required under applicable Environmental Laws, and compliance with the terms and
conditions thereof. Parent has not received any notice from a Governmental Body
that alleges that Parent is not in compliance with any Environmental Law, and,
to the knowledge of Parent, there are no circumstances that may prevent or
interfere with the compliance by Parent with any Environmental Law in the
future. To the knowledge of Parent, no current or prior owner of any property
leased or controlled by Parent has received any notice from a Government Body
that alleges that such current or prior owner or Parent is not in compliance
with any Environmental Law. To the knowledge of Parent, all property that is
leased to, controlled by or used by Parent, and all surface water, groundwater
and soil associated with or adjacent to such property is in clean and healthful
condition and is free of any material environmental contamination of any nature.
(For purposes of this Section 3.17: (i) "Environmental Law" means any federal,
state, local or foreign Legal Requirement relating to pollution or protection of
human health or the environment (including ambient air, surface water, ground
water, land surface or subsurface strata), including any law or regulation
relating to emissions, discharges, releases or threatened releases of Materials
of Environmental Concern, or otherwise relating to the manufacture, processing,
distribution, use, treatment, storage, disposal, transport or handling of
Materials of Environmental


                                       32
<PAGE>   39
Concern; and (ii) "Materials of Environmental Concern" include chemicals,
pollutants, contaminants, wastes, toxic substances, petroleum and petroleum
products and any other substance that is now or hereafter regulated by any
Environmental Law or that is otherwise a danger to health, reproduction or the
environment.)

         3.18 INSURANCE. Since December 31, 1996, Parent has not received any
notice or other communication regarding any actual or possible (a) cancellation
or invalidation of any insurance policy, (b) refusal of any coverage or
rejection of any material claim under any insurance policy, or (c) material
adjustment in the amount of the premiums payable with respect to any insurance
policy.

         3.19 TRANSACTIONS WITH AFFILIATES. Except as set forth in the Parent
SEC Reports, since the date of Parent's last proxy statement filed with the SEC,
no event has occurred that would be required to be reported by the Company
pursuant to Item 404 of Regulation S-K promulgated by the SEC. Part 3.19 of the
Parent Disclosure Schedule identifies each person who is an "affiliate" (as that
term is used in Rule 145 under the Securities Act) of Parent as of the date of
this Agreement.

         3.20 LEGAL PROCEEDINGS; ORDERS.

                  (a) There is no pending Legal Proceeding, and (to the
knowledge of Parent) no Person has threatened to commence any Legal Proceeding:
(i) that involves Parent or any of the assets owned or used by Parent which,
alone or in the aggregate, has had or would have a Material Adverse Effect on
Parent; or (ii) that challenges, or that may have the effect of preventing,
delaying, making illegal or otherwise interfering with, the Merger or any of the
other transactions contemplated by this Agreement. To the knowledge of Parent,
no event has occurred, and no claim, dispute or other condition or circumstance
exists, that could reasonably be expected to, give rise to or serve as a basis
for the commencement of any such Legal Proceeding that would have a Material
Adverse Effect on Parent.

                  (b) There is no material order, writ, injunction, judgment or
decree to which Parent, or any of the assets owned or used by Parent, is
subject. To the knowledge of Parent, no officer or key employee of Parent is
subject to any order, writ, injunction, judgment or decree that prohibits such
officer or other employee from engaging in or continuing any conduct, activity
or practice relating to the business of Parent.

         3.21 AUTHORITY; BINDING NATURE OF AGREEMENT. Parent and Merger Sub have
the requisite corporate power and authority to enter into and to perform their
obligations under this Agreement, subject to the approval of the issuance of
Parent Common Stock in the Merger by the Required Parent Stockholder Vote. The
Board of Directors of Parent (at a meeting duly called and held) has (a)
unanimously determined that the issuance of Parent Common Stock in the Merger is
advisable and fair and in the best interests of Parent and its stockholders, (b)
unanimously authorized and approved the execution, delivery and performance of
this Agreement by Parent and unanimously approved the issuance of Parent Common
Stock in connection with the Merger and (c) unanimously recommended the approval
of the issuance of Parent Common Stock in connection with the Merger by Parent's
stockholders at the Parent Stockholders' Meeting (as defined in Section 5.3).
This


                                       33
<PAGE>   40
Agreement constitutes the legal, valid and binding obligation of Parent and
Merger Sub, enforceable against them in accordance with its terms, subject to
(a) laws of general application relating to bankruptcy, insolvency and the
relief of debtors, and (b) rules of law governing specific performance,
injunctive relief and other equitable remedies.

         3.22 VOTE REQUIRED. The only vote of Parent's stockholders required to
approve the issuance of Parent Common Stock in the Merger is the vote prescribed
by the NASD Rules (the "Required Parent Stockholder Vote").

         3.23 NON-CONTRAVENTION; CONSENTS. Neither the execution and delivery of
this Agreement by Parent and Merger Sub nor the consummation by Parent and
Merger Sub of the Merger will (a) conflict with or result in any breach of any
provision of the certificate of incorporation or bylaws of Parent or the
certificate of incorporation or bylaws of Merger Sub, (b) result in a default by
Parent or Merger Sub under any Parent Material Contract to which Parent or
Merger Sub is a party, except for any default which has not had and will not
have a Material Adverse Effect on Parent, or (c) result in a violation by Parent
or Merger Sub of any order, writ, injunction, judgment or decree to which Parent
or Merger Sub is subject, except for any violation which has not had and will
not have a Material Adverse Effect on Parent.

         3.24 NO EXISTING DISCUSSIONS. During the period between August 26,
1997, the date on which the parties entered into a non-solicitation agreement,
and the date of this Agreement, neither Parent nor any Representative of Parent,
is or was engaged, directly or indirectly, in any discussions or negotiations
with any other Person relating to any Acquisition Proposal with respect to
Parent.

         3.25 ACCOUNTING MATTERS. To the knowledge of Parent, neither Parent nor
any affiliate (as that term is used in Rule 145 under the Securities Act) of
Parent has taken or agreed to take, or plans to take, any action that could
prevent Parent from accounting for the Merger as a "pooling of interests." Price
Waterhouse LLP has confirmed orally to the Company, Parent, and Ernst & Young
LLP, that, after having reviewed the transactions contemplated by this Agreement
and having conducted a reasonable investigation of Parent, Price Waterhouse LLP
is not aware of any fact concerning Parent that could preclude Parent from
accounting for the Merger as a "pooling of interests."

         3.26 FINANCIAL ADVISOR. Except for Hambrecht & Quist LLC, no broker,
finder or investment banker is entitled to any brokerage, finder's or other fee
or commission in connection with the Merger or the transactions contemplated by
this Agreement based upon arrangements made by or on behalf of Parent.

         3.27 FAIRNESS OPINION. Parent's Board of Directors has received the
written opinion of Hambrecht & Quist LLC, financial advisor to Parent, dated the
date of this Agreement, to the effect that the Exchange Ratio is fair to Parent
and its stockholders from a financial point of view.


                                       34
<PAGE>   41
         3.28 VALID ISSUANCE. The Parent Common Stock to be issued in the Merger
will, when issued in accordance with the provisions of this Agreement, be
validly issued, fully paid and nonassessable.


SECTION 4. CERTAIN COVENANTS OF THE PARTIES

         4.1 ACCESS AND INVESTIGATION. During the period from the date of this
Agreement to the Effective Time (the "Pre-Closing Period"), each party shall,
and shall cause its respective Representatives to: (a) provide the other party
and the other party's Representatives with reasonable access to such disclosing
party's Representatives, personnel and assets and to all existing books,
records, Tax Returns, work papers and other documents and information relating
to such disclosing party; and (b) provide the other party and the other party's
Representatives with such copies of the existing books, records, Tax Returns,
work papers and other documents and information relating to such disclosing
party, and with such additional financial, operating and other data and
information regarding such disclosing party, as the other party may reasonably
request. Except as required by law, each of the parties will hold, and will
cause its officers, employees, accountants, legal counsel, financial advisors
and other Representatives and controlled affiliates to hold, any and all
information received from the other party, directly or indirectly, in confidence
in accordance with the Mutual Confidential Disclosure Agreement dated March 12,
1997 between Parent and the Company.

         4.2 OPERATION OF THE COMPANY'S BUSINESS.

                  (a) During the Pre-Closing Period: (i) the Company shall
conduct its business and operations (A) in the ordinary course and consistent
with past practices and (B) in compliance with all applicable Legal Requirements
and the requirements of the Company's Material Contracts; (ii) to the extent
consistent with the foregoing, the Company shall use commercially reasonable
efforts to preserve intact its current business organization, keep available the
services of its current officers and employees and maintain its relations and
goodwill with all suppliers, customers, landlords, creditors, licensors,
licensees, employees and other Persons having business relationships with the
Company; (iii) the Company shall keep in full force all insurance policies
referred to in Section 2.18; (iv) the Company shall provide all notices,
assurances and support required by any Company Contract relating to any
Proprietary Asset in order to ensure that no condition of default or breach
under such Company Contract occurs which could result in, or could increase the
likelihood of, (A) any transfer or disclosure by the Company of any source code
materials or other Proprietary Asset, or (B) a release from any escrow of any
source code material or other Proprietary Asset which has been deposited or is
required to be deposited in escrow under the terms of such Escrow Contract; and
(v) the Company shall (to the extent requested by Parent) cause its officers to
report regularly to Parent concerning the status of the Company's business.

                  (b) During the Pre-Closing Period, the Company shall not
(without the prior written consent of Parent, which consent shall not be
unreasonably withheld or delayed):

                           (i) declare, accrue, set aside or pay any dividend or
         make any other distribution in respect of any shares of capital stock,
         or repurchase, redeem or otherwise


                                       35
<PAGE>   42
         reacquire any shares of capital stock or other securities except for
         repurchases from employees following their termination pursuant to the
         terms of their existing stock option or stock purchase agreements,
         which agreements are disclosed on Part 4.2(b)(i) of the Company
         Disclosure Schedule;

                           (ii) sell, issue, grant or authorize the issuance or
         grant of (A) any capital stock or other security, (B) any option, call,
         warrant or right to acquire any capital stock or other security, or (C)
         any instrument convertible into or exchangeable for any capital stock
         or other security (except (1) pursuant to the 1996 Employee Stock
         Purchase Plan, (2) the Company may issue Company Common Stock upon the
         valid exercise of Company Options outstanding as of the date of this
         Agreement and (3) the Company may grant Company Options under the
         Company Stock Plans to purchase up to an additional 120,000 shares of
         Company Common Stock after the date hereof and may issue Company Common
         Stock upon the exercise thereof, which shall have at least exercise
         prices equal to the fair market value on the date of the grant,
         consistent with past practice);

                           (iii) amend or waive any of its rights under, or
         accelerate the vesting under, any provision of any of the Company's
         stock option plans, any provision of any agreement evidencing any
         outstanding stock option or any restricted stock purchase agreement, or
         otherwise modify any of the terms of any outstanding option, warrant or
         other security or any related Contract;

                           (iv) amend or permit the adoption of any amendment to
         its certificate of incorporation or bylaws or other charter or
         organizational documents, or effect or become a party to any merger,
         consolidation, share exchange, business combination, recapitalization,
         reclassification of shares, stock split, reverse stock split or similar
         transaction;

                           (v) except as disclosed in Part 2.1(a)(i) of the
         Company Disclosure Schedule, form any subsidiary or acquire any equity
         interest or other interest in any other Entity;

                           (vi) make any capital expenditure (except that the
         Company may make capital expenditures that, when added to all other
         capital expenditures made on behalf of the Company during the
         Pre-Closing Period, do not exceed $100,000 in the aggregate; once the
         Company has made aggregate capital expenditures that exceed $100,000,
         it must seek Parent's consent for any additional capital expenditures
         in increments of $25,000);

                           (vii) enter into or become bound by, or permit any of
         the assets owned or used by it to become bound by, any Material
         Contract, or amend or terminate, or waive or exercise any material
         right or remedy under, any Material Contract;

                           (viii) acquire, lease or license any right or other
         asset from any other Person or sell or otherwise dispose of, or lease
         or license, any right or other asset to any other Person (except in
         each case for immaterial assets acquired, leased, licensed or disposed
         of by the


                                       36
<PAGE>   43
         Company in the ordinary course of business and consistent with past
         practices), or waive or relinquish any material right;

                           (ix) lend money to any Person, or incur or guarantee
         any indebtedness (except for: (i) advances to employees (other than to
         the Company's affiliates as identified on Part 2.19 of the Company
         Disclosure Schedule) in each case not to exceed $1,000 per employee, in
         the ordinary course of business and in accordance with past practices
         and (ii) make borrowings up to $1,000,000 under that certain credit
         line of the Company with Silicon Valley Bank substantially on the terms
         described in Part 4.2(ix) of the Company Disclosure Schedule; provided,
         however, that the Company shall (x) notify Parent prior to entering
         into an agreement with Silicon Valley Bank relating to such credit
         line, (y) provide Parent with a copy of the Company's executed
         agreement with Silicon Valley Bank relating to such credit line as soon
         as such an agreement is executed and (z) provide prompt updates to
         Parent regarding each drawdown the Company makes under such credit
         line, and in any event, to provide such updates no later than two
         business days after each such drawdown);

                           (x) establish, adopt or amend any employee benefit
         plan, pay any bonus (other than to non-officer employees in the
         aggregate amount not to exceed $35,000) or make any profit-sharing or
         similar payment to, or increase the amount of the wages, salary,
         commissions, fringe benefits or other compensation or remuneration
         payable to, any of its directors, officers or employees;

                           (xi) hire any new employee having an annual salary in
         excess of $100,000, or engage any consultant or independent contractor
         for a period exceeding 30 days;

                           (xii) change any of its methods of accounting or
         accounting practices in any respect, except as required by generally
         accepted accounting principles, to the extent consistent with past
         practices and after consultation with Parent;

                           (xiii) make any Tax election except in the ordinary
         course of business consistent with past practice or in respect of which
         amounts are reflected or reserved against in the most recent Company
         Unaudited Interim Balance Sheet;

                           (xiv) commence or settle any Legal Proceeding other
         than in the ordinary course of business consistent with past practice
         or in respect of settlements, to the extent the amount of such
         settlement has been reflected or reserved against in the Company
         Unaudited Interim Balance Sheet;

                           (xv) enter into any material transaction or take any
         other material action outside the ordinary course of business or
         inconsistent with past practices; or

                           (xvi) agree or commit to take any of the actions
         described in clauses "(i)" through "(xv)" of this Section 4.2(b).


                                       37
<PAGE>   44
                  (c) During the Pre-Closing Period, the Company shall give
prompt notice to Parent of any event or occurrence that has caused or is
reasonably expected to cause any representation or warranty made by it in this
Agreement to become untrue or inaccurate such that the condition set forth in
Section 6.1 would not be satisfied; provided, however that no such notification
shall affect the representations, warranties, covenants or agreements of the
parties or the conditions to the obligations of the parties under this
Agreement, except as specifically set forth in this Agreement.

         4.3 OPERATION OF PARENT'S BUSINESS.

                  (a) During Pre-Closing Period, Parent shall not (without the
prior written consent of the Company, which consent shall not be unreasonably
withheld or delayed):

                           (i) declare or pay any dividend on or make any other
         distribution (whether in cash, stock, equity securities or property) in
         respect of any capital stock (other than ordinary and routine cash
         dividends to its stockholders in accordance with past practices), or
         split, combine or reclassify any capital stock or issue or authorize
         the issuance of any other securities in respect of, in lieu of or in
         substitution for any capital stock;

                           (ii) sell, issue, grant or authorize the issuance or
         grant of (A) any capital stock or other security, (B) any option, call,
         warrant or right to acquire any capital stock or other security, or (C)
         any instrument convertible into or exchangeable for any capital stock
         or other security (except (1) pursuant to the 1995 Employee Stock
         Purchase Plan, (2) Parent may issue Parent Common Stock upon the valid
         exercise of Parent Options outstanding as of the date of this
         Agreement, and (3) Parent may grant Parent Options under the Parent
         Stock Plans to purchase up to an additional 240,000 shares of Parent
         Common Stock after the date hereof and may issue Parent Common Stock
         upon the exercise thereof);

                           (iii) amend or waive any of its rights under, or
         accelerate the vesting under, any provision of any of Parent's stock
         option plans, any provision of any agreement evidencing any outstanding
         stock option or any restricted stock purchase agreement, or otherwise
         modify any of the terms of any outstanding option, warrant or other
         security or any related Contract except for amendments to Parent's
         Stock Plans to increase the number of shares subject to issuance
         pursuant to such Parent's Stock Plans;

                           (iv) amend or permit the adoption of any amendment to
         its certificate of incorporation or bylaws or other charter or
         organizational documents or effect or become a party to any merger,
         consolidation, share exchange, or business combination;

                           (v) materially change its accounting methods,
         principles or practices, except as required by generally accepted
         accounting principles;

                           (vi) take any action, or permit any action to be
         taken, which would result in a failure to maintain the listing and
         trading of Parent Common Stock on Nasdaq National Market System;


                                       38
<PAGE>   45
                           (vii) make any Tax election except in the ordinary
         course of business consistent with past practice or in respect of which
         amounts are reflected or reserved against in the most recent Parent
         Unaudited Interim Balance Sheet;

                           (viii) commence or settle any Legal Proceeding other
         than in the ordinary course of business consistent with past practice
         or in respect of settlements, to the extent the amount of such
         settlement has been reflected or reserved against in the Parent
         Unaudited Interim Balance Sheet;

                           (ix) enter into any material transaction or take any
         other material action outside the ordinary course of business or
         inconsistent with past practices; or

                           (x) agree or commit to take any of the actions
         described in clauses "(i)" through "(ix)" of this Section 4.3(a).

                  (b) During the Pre-Closing Period, Parent shall give prompt
notice to the Company of any event or occurrence that has caused or is
reasonably expected to cause any representation or warranty made by it in this
Agreement to become untrue or inaccurate such that the condition set forth in
Section 7.1 would not be satisfied; provided, however that no such notification
shall affect the representations, warranties, covenants or agreements of the
parties or the conditions to the obligations of the parties under this
Agreement.

         4.4 NO SOLICITATION.

                  (a) The Company shall not directly or indirectly, and shall
not authorize or permit any Representative of the Company directly or indirectly
to, (i) solicit, initiate, encourage or induce the making, submission or
announcement of any Acquisition Proposal or take any action that could
reasonably be expected to lead to an Acquisition Proposal, (ii) furnish any
information regarding the Company to any Person in connection with or in
response to an Acquisition Proposal, (iii) engage in discussions or negotiations
with any Person with respect to any Acquisition Proposal, (iv) approve, endorse
or recommend any Acquisition Proposal or (v) enter into any letter of intent or
similar document or any Contract contemplating or otherwise relating to any
Acquisition Transaction; provided, however, prior to the approval and adoption
of this Agreement and approval of the Merger by the Required Company Stockholder
Vote, no provision of this Agreement shall prohibit the Company from furnishing
nonpublic information regarding the Company to, or entering into discussions and
participating in negotiations with, any Person in response to an Acquisition
Proposal that is submitted by such Person (and not then withdrawn) if (A)
neither the Company nor any of the Representatives of the Company shall have
violated any of the restrictions set forth in this Section 4.4, (B) the Board of
Directors of the Company concludes in good faith, after consultation with
outside legal counsel, that such action is required in order for the Board of
Directors of the Company to comply with its fiduciary obligations to the
Company's stockholders under applicable law, (C) concurrently with furnishing
any such nonpublic information to, or entering into discussions or negotiations
with, such Person, the Company gives Parent written notice of the identity of
such Person and of the Company's intention to furnish nonpublic information to,
or enter into discussions or negotiations with, such Person, and the Company
receives from such Person an executed


                                       39
<PAGE>   46
confidentiality agreement containing customary and reasonable limitations on the
use and disclosure of all nonpublic written and oral information furnished to
such Person by or on behalf of the Company and (D) concurrently with furnishing
any such nonpublic information to such Person, the Company furnishes such
nonpublic information to Parent (to the extent such nonpublic information has
not been previously furnished by the Company to Parent). Without limiting the
generality of the foregoing, the Company acknowledges and agrees that any
violation of any of the restrictions set forth in the preceding sentence by any
Representative of the Company, whether or not such Representative is purporting
to act on behalf of the Company, shall be deemed to constitute a breach of this
Section 4.4 by the Company.

                  (b) The Company shall promptly advise Parent orally and in
writing of any Acquisition Proposal (including the identity of the Person making
or submitting such Acquisition Proposal and the terms thereof) that is made or
submitted by any Person during the Pre-Closing Period. The Company shall keep
Parent fully informed with respect to the status of any such Acquisition
Proposal and any modification or proposed modification thereto.


SECTION 5. ADDITIONAL COVENANTS OF THE PARTIES

         5.1 REGISTRATION STATEMENT; JOINT PROXY STATEMENT.

                  (a) As promptly as practicable after the date of this
Agreement, Parent and the Company shall prepare and cause to be filed with the
SEC the Joint Proxy Statement and Parent shall prepare and cause to be filed
with the SEC the Form S-4 Registration Statement, in which the Joint Proxy
Statement will be included as a prospectus. Each of Parent and the Company shall
use all reasonable efforts to cause the Form S-4 Registration Statement and the
Joint Proxy Statement to comply with the rules and regulations promulgated by
the SEC, to respond promptly to any comments of the SEC or its staff and to have
the Form S-4 Registration Statement declared effective under the Securities Act
as promptly as practicable after it is filed with the SEC. Parent will use all
reasonable efforts to cause the Joint Proxy Statement to be mailed to Parent's
stockholders, and the Company will use all reasonable efforts to cause the Joint
Proxy Statement to be mailed to the Company's stockholders, as promptly as
practicable after the Form S-4 Registration Statement is declared effective
under the Securities Act. The parties shall promptly furnish to the other party
all information concerning itself, its stockholders and its affiliates that may
be required or reasonably requested in connection with any action contemplated
by this Section 5.1. If any event relating to the Company occurs, or if the
Company becomes aware of any information, that should be disclosed in an
amendment or supplement to the Form S-4 Registration Statement or the Joint
Proxy Statement, then the Company shall promptly inform Parent thereof and shall
cooperate with Parent in filing such amendment or supplement with the SEC and,
if appropriate, in mailing such amendment or supplement to the stockholders of
the Company.

                  (b) Prior to the Effective Time, Parent shall use reasonable
efforts to obtain all regulatory approvals needed to ensure that the Parent
Common Stock to be issued in the Merger: (i) will be registered or qualified
under the securities law of every jurisdiction of the United States in which any
registered holder of Company Common Stock has an address of record on the record


                                       40
<PAGE>   47
date for determining the stockholders entitled to notice of and to vote at the
Company Stockholders' Meeting, and (ii) will be approved for quotation at the
Effective Time on the Nasdaq National Market; provided, however, that Parent
shall not be required (A) to qualify to do business as a foreign corporation in
any jurisdiction in which it is not now qualified or (B) to file a general
consent to service of process in any jurisdiction.

                  (c) None of the information to be supplied by or on behalf of
the parties for inclusion in the Form S-4 Registration Statement will, at the
time the Form S-4 Registration Statement becomes effective under the Securities
Act, 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 the light of the circumstances under which they are made,
not misleading. None of the information to be supplied by or on behalf of the
parties for inclusion in the Joint Proxy Statement will, at the time the Joint
Proxy Statement is mailed to the stockholders of the Company, at the time of the
Company Stockholders' Meeting or as of the Effective Time, 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 the
light of the circumstances under which they are made, not misleading. The Joint
Proxy Statement will comply as to form in all material respects with the
provisions of the Exchange Act and the rules and regulations promulgated by the
SEC thereunder, except that no representation or warranty is made by Parent with
respect to statements made or incorporated by reference therein based on
information supplied by the Company for inclusion or incorporation by reference
in the Joint Proxy Statement and no representation or warranty is made by the
Company with respect to statements made or incorporated by reference therein
based on information supplied by Parent for inclusion or incorporation by
reference in the Joint Proxy Statement.

         5.2 COMPANY STOCKHOLDERS' MEETING.

                  (a) The Company shall take all action necessary under all
applicable Legal Requirements to call, give notice of, convene and hold a
meeting of the holders of Company Common Stock to consider, act upon and vote
upon the approval of this Agreement and of the Merger (the "Company
Stockholders' Meeting"). The Company Stockholders' Meeting will be held as
promptly as practicable and in any event within 45 days after the Form S-4
Registration Statement is declared effective under the Securities Act. The
Company shall ensure that the Company Stockholders' Meeting is called, noticed,
convened, held and conducted, and that all proxies solicited in connection with
the Company Stockholders' Meeting are solicited, in compliance with all
applicable Legal Requirements.

                  (b) Subject to Section 5.2(c): (i) the Board of Directors of
the Company shall unanimously recommend that the Company's stockholders vote in
favor of and approve and adopt this Agreement and approve the Merger at the
Company Stockholders' Meeting; (ii) the Joint Proxy Statement shall include a
statement to the effect that the Board of Directors of the Company has
unanimously recommended that the Company's stockholders vote in favor of and
approve and adopt this Agreement and approve the Merger at the Company
Stockholders' Meeting; and (iii) neither the Board of Directors of the Company
nor any committee thereof shall withdraw, amend or modify, or propose or resolve
to withdraw, amend or modify, in a manner adverse to Parent, the unanimous


                                       41
<PAGE>   48
recommendation of the Board of Directors of the Company that the Company's
stockholders vote in favor of and approve and adopt this Agreement and approve
the Merger. For purposes of this Agreement, said recommendation of the Board of
Directors of the Company shall be deemed to have been modified in a manner
adverse to Parent if said recommendation shall no longer be unanimous.

                  (c) Notwithstanding any other provision in this Agreement,
prior to the approval of this Agreement by the Required Company Stockholder
Vote, if a Superior Offer is made to the Company and is not withdrawn, the Board
of Directors of the Company may, in light of the Superior Offer, to the extent
it determines in good faith, after consultation with outside legal counsel, that
it is required to do so in order to comply with its fiduciary duties to the
Company's stockholders under applicable law, withdraw or modify its approval or
recommendation of this Agreement and the Merger or approve or recommend such
Superior Offer; provided that, in so withdrawing or modifying its approval or
recommendation of this Agreement and the Merger and/or recommending or approving
a Superior Offer, neither the Company nor its Representatives shall have
breached Section 4.4, provided, further, that the Company may refrain from
soliciting proxies from its stockholders with respect to this Agreement and the
Merger, in which event, however, the Company shall, subject to compliance with
applicable law: (i) immediately deliver a copy of a complete, accurate and
current list of the Company's stockholders to Parent; and (ii) upon the request
of Parent, include in the materials mailed by the Company to the Company's
stockholders with respect to calling and giving notice of the Company
Stockholders' Meeting, proxy solicitation materials that have been prepared by
Parent in accordance with the Exchange Act. To the extent that there is no
temporary restraining order, preliminary or permanent injunction or other final
and nonappealable order, decree or ruling issued by any court of competent
jurisdiction which remains in effect and which has the effect of permanently
restraining, enjoining or otherwise prohibiting the Merger, the Company shall
remain obligated and nothing shall limit the Company's obligation under Section
5.2(a) to call, give notice of, include Parent's proxy solicitation materials in
the notice materials mailed by the Company to the Company's stockholders,
convene and hold the Company Stockholders' Meeting and to cause the Company's
stockholders to take a final vote on this Agreement and the Merger (regardless
of whether the unanimous recommendation of the Board of Directors of the Company
shall have been withdrawn, amended or modified).

         5.3 PARENT STOCKHOLDERS' MEETING.

                  (a) Parent shall take all action necessary under all
applicable Legal Requirements to call, give notice of, convene and hold a
meeting of the holders of Company Common Stock to consider and vote upon the
issuance of Parent Common Stock in the Merger (the "Parent Stockholders'
Meeting"). The Parent Stockholders' Meeting will be held as promptly as
practicable and in any event within 45 days after the Form S-4 Registration
Statement is declared effective under the Securities Act; provided, however,
that notwithstanding the foregoing, nothing in this Section 5.3 shall obligate
Parent to call, give notice of, convene or hold a Parent Stockholders' Meeting
(i) if the holders of the Company Common Stock do not approve and adopt this
Agreement and approve the Merger or (ii) if, prior to the time the Parent
Stockholders' Meeting is scheduled to be held, there is a Material Adverse
Effect on the Company that arose from (A) the Company's breach of or failure to
perform its covenants as set forth in Sections 4 and 5 hereof, or (B) the
Company's breach of or inaccuracy of any of its representations and warranties
as set forth in Section 2 that resulted from


                                       42
<PAGE>   49
facts, circumstances, events or conditions which existed at any time prior to
and through the date of this Agreement.

                  (b) (i) The Board of Directors of Parent shall unanimously
recommend that Parent's stockholders vote in favor of the issuance of Parent
Common Stock in the Merger; (ii) the Joint Proxy Statement shall include a
statement to the effect that the Board of Directors of Parent has unanimously
recommended that Parent's stockholders vote in favor of the issuance of Parent
Common Stock in the Merger; and (iii) neither the Board of Directors of Parent
nor any committee thereof shall withdraw, amend or modify, or propose or resolve
to withdraw, amend or modify, in a manner adverse to the Company, the unanimous
recommendation of the Board of Directors of Parent that Parent's stockholders
vote in favor of the issuance of Parent Common Stock in the Merger. For purposes
of this Agreement, said recommendation of Parent's Board of Directors shall be
deemed to have been modified in a manner adverse to the Company if said
recommendation shall no longer be unanimous.

         5.4 REGULATORY APPROVALS. The Company and Parent shall use all
reasonable efforts to file, as soon as practicable after the date of this
Agreement, all notices, reports and other documents required to be filed with
any Governmental Body with respect to the Merger and the other transactions
contemplated by this Agreement, and to submit promptly any additional
information requested by any such Governmental Body.

         5.5 STOCK OPTIONS, WARRANTS, AND EMPLOYEE STOCK PURCHASE PLANS.

                  (a) Subject to Section 5.5(b), at the Effective Time by virtue
of the Merger and without the need for any further corporate action, all rights
with respect to Company Common Stock under each Company Option then outstanding
shall be converted into and become rights with respect to Parent Common Stock,
and Parent shall assume each such Company Option in accordance with the terms of
the stock option plan (as in effect as of the date of this Agreement) under
which it was issued and the stock option agreement by which it is evidenced.
From and after the Effective Time, (i) each Company Option assumed by Parent may
be exercised solely for shares of Parent Common Stock, (ii) the number of shares
of Parent Common Stock subject to each such Company Option shall be equal to the
number of shares of Company Common Stock subject to such Company Option
immediately prior to the Effective Time multiplied by the Exchange Ratio,
rounding down to the nearest whole share (with cash, less the applicable
exercise price, being payable for any fraction of a share), (iii) the per share
exercise price under each such Company Option shall be adjusted by dividing the
per share exercise price under such Company Option by the Exchange Ratio and
rounding up to the nearest cent and (iv) any restriction on the exercise of any
such Company Option shall continue in full force and effect and the term,
exercisability, vesting schedule and other provisions of such Company Option
shall otherwise remain unchanged; provided, however, that each Company Option
assumed by Parent in accordance with this Section 5.5(a) shall, in accordance
with its terms, be subject to further adjustment as appropriate to reflect any
stock split, stock dividend, reverse stock split, reclassification,
recapitalization or other similar transaction subsequent to the Effective Time.
Parent shall file with the SEC, no later than 5 days after the Effective Time, a
registration statement on Form S-8 relating to the shares of Parent Common Stock
issuable with respect to the Company Options assumed by Parent in accordance
with this Section 5.5(a). The


                                       43
<PAGE>   50
adjustments provided herein with respect to any Company Option that are
"incentive stock options" as defined in Section 422 of the Code shall be and are
intended to be effected in a manner which is consistent with Section 424(a) of
the Code.

                  (b) Notwithstanding anything to the contrary contained in this
Section 5.5, in lieu of assuming outstanding Company Options in accordance with
Section 5.5(a), Parent may, at its election, cause such outstanding Company
Options to be replaced by issuing reasonably equivalent replacement stock
options in substitution therefor.

                  (c) The Company shall take all action that may be necessary
(under the plans pursuant to which Company Options are outstanding and
otherwise) to effectuate the provisions of this Section 5.5 and to ensure that,
from and after the Effective Time, holders of Company Options have no rights
with respect thereto other than those specifically provided in this Section 5.5.
As soon as practicable after the Effective Time, Parent shall deliver to the
participants in the Company Stock Plans appropriate notice setting forth such
participants' rights pursuant thereto and the assumption of such Company Stock
Plans by Parent as described in Section 5.5(a).

                  (d) At the Effective Time, all rights with respect to the
Company Warrants that are then outstanding shall be converted into and become
rights with respect to Parent Common Stock, and Parent shall assume each Company
Warrant in accordance with the terms (as in effect as of the date hereof) of
such Company Warrants. From and after the Effective Time, (i) each Company
Warrant assumed by Parent may be exercised solely for shares of Parent Common
Stock, (ii) the number of shares of Parent Common Stock subject to each such
Company Warrant shall be equal to the number of shares of Company Common Stock
subject to such Company Warrant immediately prior to the Effective Time
multiplied by the Exchange Ratio, rounding down to the nearest whole share (with
cash, less the applicable exercise price, being payable for any fraction of a
share), (iii) the per share exercise price under each such Company Warrant shall
be adjusted by dividing the per share exercise price under such Company Warrant
by the Exchange Ratio and rounding up to the nearest cent and (iv) any
restriction on the exercise of any such Company Warrant shall continue in full
force and effect and the term, exercisability, vesting schedule and other
provisions of such Company Warrant shall otherwise remain unchanged; provided,
however, that each Company Warrant assumed by Parent in accordance with this
Section 5.5(d) shall, in accordance with its terms, be subject to further
adjustment as appropriate to reflect any stock split, stock dividend, reverse
stock split, reclassification, recapitalization or other similar transaction
subsequent to the Effective Time. The Company shall take all action that may be
necessary (under the Company Warrants and otherwise) to effectuate the
provisions of this Section 5.5(d) and to ensure that, from and after the
Effective Time, holders of Company Warrants have no rights with respect thereto
other than those specifically provided herein. As soon as practicable after the
Effective Time, Parent shall deliver to the Company Warrant holders appropriate
notice setting forth such holders' rights pursuant thereto and the assumption of
such Company Warrants by Parent as described in this Section 5.5(d).

                  (e) The Company shall terminate the Company's 1996 Employee
Stock Purchase Plan ("ESPP") by having its Board of Directors amend the ESPP as
necessary to provide that: (i) any shares of Company Common Stock shall be
purchased under the ESPP on a new "Exercise


                                       44
<PAGE>   51
Date" (as such term is defined in the ESPP) set by the Board of Directors of the
Company, which new Exercise Date shall be on the last trading day immediately
prior to the Effective Time, or such earlier time as the Board of Directors of
the Company shall specify and (ii) immediately following such purchase of shares
of Company Common Stock on the new Exercise Date, the ESPP shall terminate.

                  (f) Parent shall assume all Stock Purchase Agreements and the
Company shall assign its repurchase rights under such Stock Purchase Agreements
to Parent pursuant to Section 10 of the Stock Purchase Agreements. The Stock
Purchase Agreements so assumed by Parent under this Agreement will continue to
have, and be subject to, the same terms and conditions set forth in the
applicable Stock Purchase Agreement by which it is evidenced (including, without
limitation, any repurchase rights) immediately prior to the Effective Time,
except that (i) the Stock Purchase Agreement will be for that number of whole
shares (and no fractional shares) of Parent Common Stock equal to the product of
the number of shares of Company Common Stock that have not vested immediately
prior to the Effective Time multiplied by the Exchange Ratio, rounded down to
the nearest whole number of shares of Parent Common Stock and (ii) the per share
repurchase price for the unvested shares of Parent Common Stock subject to the
repurchase right will be equal to the quotient determined by dividing the
purchase price per share of Company Common Stock at which such Company Common
Stock was purchased under the Stock Purchase Agreement by the Exchange Ratio,
rounded up to the nearest whole cent.

         5.6 INDEMNIFICATION OF OFFICERS AND DIRECTORS.

                  (a) From the Effective Time, Parent will, and will cause the
Surviving Corporation to, fulfill and honor in all respects the obligations of
the Company pursuant to (i) each indemnification agreement in effect at such
time between the Company and each person who is or was a director or officer of
the Company at or prior to the Effective Time and (ii) any indemnification
provisions under the Company's Restated Certificate of Incorporation or Bylaws
as each is in effect on the date hereof (the persons to be indemnified pursuant
to the agreements or provisions referred to in clauses (i) and (ii) of this
Section 5.6 shall be referred to as, individually, the "Indemnified Party.") The
Certificate of Incorporation and Bylaws of the Surviving Corporation shall
contain the provisions with respect to indemnification and exculpation from
liability set forth in the Company's Certificate of Incorporation and Bylaws on
the date of this Agreement which provisions shall not be amended, repealed or
otherwise modified for a period of six years after the Effective Time in any
manner that would adversely affect the rights thereunder of any Indemnified
Party, unless required by applicable law. In addition, the terms of the existing
indemnification agreements entered into by the Company and its officers and
directors as of the date of this Agreement shall not be terminated by Parent or
the Surviving Corporation for a period of six years after the Effective Time,
unless required by applicable law.

                  (b) From the Effective Time until the third anniversary of the
Effective Time, the Surviving Corporation shall maintain in effect, for the
benefit of the current directors and officers of the Company with respect to
acts or omissions occurring prior to the Effective Time, the existing policy of
directors' and officers' liability insurance maintained by the Company as of the
date of this Agreement (the "Existing Policy"); provided, however, that (i) the
Surviving Corporation may


                                       45
<PAGE>   52
substitute for the Existing Policy a policy or policies of comparable coverage,
and (ii) the Surviving Corporation shall not be required to pay an annual
premium for the Existing Policy (or for any substitute policies) in excess of
$150,000. In the event any future annual premium for the Existing Policy (or any
substitute policies) exceeds $150,000, the Surviving Corporation shall be
entitled to reduce the amount of coverage of the Existing Policy (or any
substitute policies) to the amount of coverage that can be obtained for a
premium equal to $150,000.

                  (c) This Section 5.6 shall survive the consummation of the
Merger at the Effective Time and is intended to be for the benefit of the
Company, Parent, the Surviving Corporation and each Indemnified Party and such
Indemnified Party's heirs and representatives and shall be binding on all
successors and assigns of Parent and the Surviving Corporation.


         5.7 POOLING OF INTERESTS. Each of the Company and Parent agrees (a) not
to take any action during the Pre-Closing Period that would adversely affect the
ability of Parent to account for the Merger as a "pooling of interests," and (b)
to use all reasonable efforts to attempt to ensure that none of its "affiliates"
(as that term is used in Rule 145 under the Securities Act) takes any action
that could adversely affect the ability of Parent to account for the Merger as a
"pooling of interests."

         5.8 ADDITIONAL AGREEMENTS.

                  (a) Subject to Section 5.8(b), Parent and the Company shall
use all reasonable efforts to take, or cause to be taken, all actions necessary
to consummate the Merger and make effective the other transactions contemplated
by this Agreement. Without limiting the generality of the foregoing, but subject
to Section 5.8(b), each party to this Agreement (i) shall make all filings (if
any) and give all notices (if any) required to be made and given by such party
in connection with the Merger and the other transactions contemplated by this
Agreement, (ii) shall use all reasonable efforts to obtain each Consent (if any)
required to be obtained (pursuant to any applicable Legal Requirement or
Contract, or otherwise) by such party in connection with the Merger or any of
the other transactions contemplated by this Agreement, (iii) shall use all
reasonable efforts to lift any restraint, injunction or other legal bar to the
Merger, (iv) shall execute and deliver any additional instruments, documents,
certificates or agreements necessary to consummate the Merger and the other
transactions contemplated by this Agreement and to carry out the purposes and
intent of this Agreement, and (v) shall fulfill their respective obligations
under Sections 6 and 7. Each of the Company and Parent shall promptly deliver to
the other party a copy of each such filing made, each such notice given and each
such Consent obtained by the other party during the Pre-Closing Period.

                  (b) Notwithstanding anything to the contrary contained in this
Agreement, Parent shall not have any obligation under this Section 5.8: (i) to
dispose or cause any of its Subsidiaries to dispose of any assets, or to commit
to cause the Company to dispose of any assets; (ii) to discontinue or cause any
of its Subsidiaries to discontinue offering any product, or to commit to cause
the Company to discontinue offering any product; (iii) to license or otherwise
make available, or cause any of its Subsidiaries to license or otherwise make
available, to any Person, any technology, software or other Proprietary Asset,
or to commit to cause the Company to license or otherwise make available to any
Person any technology, software or other Proprietary Asset the


                                       46
<PAGE>   53
Company is not already required to license or otherwise make available under
Contracts existing as of the date of this Agreement and identified on Part 2.9
of the Company Disclosure Schedule; or (iv) to hold separate or cause any of its
Subsidiaries to hold separate any assets or operations (either before or after
the Closing Date), or to commit to cause the Company to hold separate any assets
or operations.

         5.9 DISCLOSURE. Parent and the Company shall consult with each other
before issuing any press release or otherwise making any public statement with
respect to the Merger or any of the other transactions contemplated by this
Agreement. Without limiting the generality of the foregoing, neither the Company
nor Parent shall, nor shall either of them permit any of their respective
Representatives to, make any disclosure regarding the Merger or any of the other
transactions contemplated by this Agreement unless (a) the other party shall
have approved such disclosure or (b) the disclosing party shall have been
advised in writing by its outside legal counsel that such disclosure is required
by applicable law.

         5.10 AFFILIATE AGREEMENTS. The Company shall use all reasonable efforts
to cause each Person identified in Part 2.19 of the Company Disclosure Schedule
and each other Person who is or becomes an "affiliate" (as that term is used in
Rule 145 under the Securities Act) of the Company to execute and deliver to
Parent, prior to the date of the mailing of the Joint Proxy Statement to the
Company's stockholders, an Affiliate Agreement in the form of Exhibit C.

         5.11 TAX MATTERS. At or prior to the Closing, the Company and Parent
shall execute and deliver to Cooley Godward LLP and Wilson Sonsini Goodrich &
Rosati, a Professional Corporation tax representation letters in customary form.
In addition, the Company shall use all reasonable efforts to obtain and deliver
to Parent, as soon as practicable after the date of this Agreement, Continuity
of Interest Certificates in the form of Exhibit D, signed by Phillip Lamoreaux.
Parent and the Company shall use all reasonable efforts prior to the Effective
Time to cause the Merger to qualify as a tax free reorganization under Section
368(a)(1) of the Code and each shall use reasonable efforts to obtain the
opinions of counsel referred to in Sections 6.5(e) and 7.5(a) hereof.

         5.12 COMFORT LETTERS. The Company shall use all reasonable efforts to
cause Ernst & Young LLP, certified public accountants to the Company, to provide
comfort letters dated the date on which the Form S-4 Registration Statement
shall become effective and reasonably acceptable in form and substance to
Parent, relating to the performance of Ernst & Young LLP of customary
procedures, including a review of interim financial statement information as
described in SAS No. 71, with respect to the financial statements of the Company
contained in or incorporated by reference in the Form S-4 Registration
Statement. Parent shall use all reasonable efforts to cause Price Waterhouse
LLP, certified public accountants to Parent, to provide comfort letters dated
the date on which the Form S-4 Registration Statement shall become effective and
reasonably acceptable in form and substance to the Company, relating to the
performance of Price Waterhouse LLP of customary procedures, including a review
of interim financial statement information as described in SAS No. 71, with
respect to the financial statements of Parent contained in or incorporated by
reference in the Form S-4 Registration Statement.


                                       47
<PAGE>   54
         5.13 RESIGNATION OF OFFICERS AND DIRECTORS. The Company shall use all
reasonable efforts to obtain and deliver to Parent prior to the Closing the
resignation of each officer and director of the Company.

         5.14 APPOINTMENT OF ADDITIONAL DIRECTORS. As of the Effective Time, the
Board of Directors of Parent shall have taken appropriate action to cause the
number of directors comprising the full Board of Directors of Parent to be
increased to seven (7) persons, and Dr. Phillip Berman and Dr. David Lapan to be
appointed as of the Effective Time as new members of the Board of Directors,
each to serve until their respective successors are duly elected, appointed and
qualified.

         5.15 CONSENTS. As soon as practicable after the date hereof, the
Company will use its best efforts to obtain all material Consents, waivers and
approvals required to be obtained in connection with the Merger and the other
transactions contemplated by this Agreement (including the Consents identified
in Part 5.15 of the Company Disclosure Schedule).

         5.16 FINANCIAL INFORMATION AND REPORTING. During the Pre-Closing
Period, each of Parent and the Company will furnish to the other, as soon as
practicable after the end of such party's monthly accounting periods, and in any
event within 21 days thereafter, a consolidated balance sheet of such party, as
of the end of each such monthly period, and a consolidated statement of income
and a consolidated statement of cash flows of such party, for such period and
for the current fiscal year to date, prepared in accordance with generally
accepted accounting principles, with the exception that no notes need be
attached to such statements.


SECTION 6. CONDITIONS PRECEDENT TO OBLIGATIONS OF PARENT AND MERGER SUB

         The obligations of Parent and Merger Sub to effect the Merger and
otherwise consummate the transactions contemplated by this Agreement are subject
to the satisfaction, at or prior to the Closing, of each of the following
conditions:


                                       48
<PAGE>   55
         6.1 ACCURACY OF REPRESENTATIONS.

         The representations and warranties of the Company contained in this
Agreement shall have been accurate in all respects as of the date of this
Agreement and shall be accurate in all respects as of the Closing Date as if
made on and as of the Closing Date, except that any inaccuracies in such
representations and warranties will be disregarded if the circumstances giving
rise to all such inaccuracies (considered individually and collectively) do not
constitute a Material Adverse Effect on the Company (it being understood that,
for purposes of determining the accuracy of such representations and warranties
(i) all "Material Adverse Effect" qualifications and other materiality
qualifications contained in such representations and warranties shall be
disregarded and (ii) any update of or modification of the Company Disclosure
Schedule made or purported to have been made after the date of this Agreement
shall be disregarded).

         6.2 PERFORMANCE OF COVENANTS. Each covenant or obligation that the
Company is required to comply with or to perform at or prior to the Closing
shall have been complied with and performed in all material respects.

         6.3 EFFECTIVENESS OF REGISTRATION STATEMENT. The Form S-4 Registration
Statement shall have become effective in accordance with the provisions of the
Securities Act, and no stop order shall have been issued by the SEC with respect
to the Form S-4 Registration Statement.

         6.4 STOCKHOLDER APPROVAL. This Agreement shall have been duly adopted
and approved by the Required Company Stockholder Vote, the Merger shall have
been duly approved by the Required Company Stockholder Vote and the issuance of
Parent Common Stock in the Merger shall have been duly approved by the required
Parent Stockholder Vote.

         6.5 AGREEMENTS AND DOCUMENTS. Parent and the Company shall have
received the following agreements and documents, each of which shall be in full
force and effect:

                  (a) Affiliate Agreements in the form of Exhibit C, executed by
each Person who could reasonably be deemed to be an "affiliate" of the Company
(as that term is used in Rule 145 under the Securities Act ), which Affiliate
Agreement shall also contain customary continuity of interest representations;

                  (b) Accepted employment letters in the form of Exhibit E,
executed by the individuals identified on Exhibit F; and none of the individuals
identified on Exhibit F shall have expressed an intention to terminate his
employment with the Company or to decline to accept employment with Parent;

                  (c) a letter from Ernst & Young LLP, dated as of the Closing
Date and addressed to Parent, the Company and Price Waterhouse LLP, reasonably
satisfactory in form and substance to Parent and Price Waterhouse LLP, to the
effect that, after reasonable investigation, Ernst & Young LLP is not aware of
any fact concerning the Company or any of the Company's stockholders or
affiliates that could preclude Parent from accounting for the Merger as a
"pooling of interests" in


                                       49
<PAGE>   56
accordance with generally accepted accounting principles, Accounting Principles
Board Opinion No. 16 and all published rules, regulations and policies of the
SEC;

                  (d) a letter from Price Waterhouse LLP, dated as of the
Closing Date and addressed to Parent, reasonably satisfactory in form and
substance to Parent, to the effect that Parent may account for the Merger as a
"pooling of interests" in accordance with generally accepted accounting
principles, Accounting Principles Board Opinion No. 16 and all published rules,
regulations and policies of the SEC;

                  (e) a legal opinion of Cooley Godward LLP, dated as of the
Closing Date and addressed to Parent, to the effect that the Merger will
constitute a reorganization within the meaning of Section 368 of the Code (it
being understood that, in rendering such opinion, Cooley Godward LLP may rely
upon the continuity of interest representations and tax representation letters
referred to in this Agreement), provided, however, that if Cooley Godward LLP
does not render such opinion or withdraws or modifies such opinion, this
condition shall nonetheless be deemed to be satisfied if counsel to the Company
renders such opinion to Parent;

                  (f) a certificate executed on behalf of the Company by its
Chief Executive Officer confirming that the conditions set forth in Sections
6.1, 6.2, 6.4 (as to the Required Company Stockholder Vote only), 6.6, 6.8, and
6.9 have been duly satisfied; and

                  (g) the written resignations of all officers and directors of
the Company, effective as of the Effective Time; provided further that (i) the
written resignations of Phillip Berman, Cary Cole, and Henky Wibowo (the
"Executives") shall also contain provisions providing for the release by the
Executives of the Company's obligations under the Executives' existing
employment agreements with the Company and (ii) a voluntary termination by the
Executives of such employment agreements.

         6.6 NO MATERIAL ADVERSE EFFECT. No Material Adverse Effect with respect
to the Company shall have occurred since the date of this Agreement (except for
any Material Adverse Effect that shall have been cured without such cure
resulting or reasonably being expected to result in a Material Adverse Effect on
the Company).

         6.7 LISTING. The shares of Parent Common Stock to be issued in the
Merger shall have been approved for listing (subject to notice of issuance) on
the Nasdaq National Market.

         6.8 NO RESTRAINTS. No temporary restraining order, preliminary or
permanent injunction or other order preventing the consummation of the Merger
shall have been issued by any court of competent jurisdiction and remain in
effect, and there shall not be any Legal Requirement enacted or deemed
applicable to the Merger that makes consummation of the Merger illegal.

         6.9 NO GOVERNMENTAL LITIGATION. There shall not be pending or
threatened any Legal Proceeding in which a Governmental Body is or has
threatened to become a party or is otherwise involved: (a) challenging or
seeking to restrain or prohibit the consummation of the Merger or any of the
other transactions contemplated by this Agreement; (b) seeking to prohibit or
limit in any


                                       50
<PAGE>   57
material respect Parent's ability to vote, receive dividends with respect to or
otherwise exercise ownership rights with respect to the stock of the Surviving
Corporation; or (c) which would materially and adversely affect the right of
Parent, the Surviving Corporation or any Subsidiary of Parent to own the assets
or operate the business of the Company.


SECTION 7. CONDITIONS PRECEDENT TO OBLIGATION OF THE COMPANY

         The obligation of the Company to effect the Merger and otherwise
consummate the transactions contemplated by this Agreement are subject to the
satisfaction, at or prior to the Closing, of the following conditions:

         7.1 ACCURACY OF REPRESENTATIONS.

         The representations and warranties of Parent contained in this
Agreement shall have been accurate in all respects as of the date of this
Agreement and shall be accurate in all respects as of the Closing Date as if
made on and as of the Closing Date, except that any inaccuracies in such
representations and warranties will be disregarded if the circumstances giving
rise to all such inaccuracies (considered individually and collectively) do not
constitute a Material Adverse Effect on Parent (it being understood that, for
purposes of determining the accuracy of such representations and warranties (i)
all "Material Adverse Effect" qualifications and other materiality
qualifications contained in such representations and warranties shall be
disregarded and (ii) any update of or modification of the Parent Disclosure
Schedule made or purported to have been made after the date of this Agreement
shall be disregarded).

         7.2 PERFORMANCE OF COVENANTS. All of the covenants and obligations that
Parent and Merger Sub are required to comply with or to perform at or prior to
the Closing shall have been complied with and performed in all material
respects.

         7.3 EFFECTIVENESS OF REGISTRATION STATEMENT. The Form S-4 Registration
Statement shall have become effective in accordance with the provisions of the
Securities Act, and no stop order shall have been issued by the SEC with respect
to the Form S-4 Registration Statement.

         7.4 STOCKHOLDER APPROVAL. This Agreement shall have been duly approved
and adopted by the Required Company Stockholder Vote, the Merger shall have been
duly approved by the Required Company Stockholder Vote and the issuance of
Parent Common Stock in the Merger shall have been duly approved by the Required
Parent Stockholder Vote.

         7.5 DOCUMENTS. The Company shall have received the following documents:

                  (a) a legal opinion of Wilson Sonsini Goodrich & Rosati, a
Professional Corporation dated as of the Closing Date, to the effect that the
Merger will constitute a reorganization within the meaning of Section 368 of the
Code (it being understood that, in rendering such opinion, Wilson Sonsini
Goodrich & Rosati may rely upon the continuity of interest representations and
tax representation letters referred to in this Agreement), provided, however,
that


                                       51
<PAGE>   58
if Wilson Sonsini Goodrich & Rosati does not render such opinion or withdraws or
modifies such opinion, this condition shall nonetheless be deemed to be
satisfied if counsel to Parent renders such opinion to the Company;

                  (b) a certificate executed on behalf of Parent by an executive
officer of Parent, confirming that conditions set forth in Sections 7.1, 7.2,
7.4 (as to the Required Parent Stockholder Vote only) 7.6 and 7.8 have been duly
satisfied; and

                  (c) a letter from Price Waterhouse LLP, dated as of the
Closing Date and addressed to the Company, Parent and Ernst & Young LLP,
reasonably satisfactory in form and substance to the Company and Ernst & Young
LLP, to the effect that, after reasonable investigation, Price Waterhouse LLP is
not aware of any fact concerning Parent or any of Parent's stockholders or
affiliates that could preclude Parent from accounting for the Merger as a
"pooling of interests" in accordance with generally accepted accounting
principles, Accounting Principles Board Opinion No. 16 and all published rules,
regulations and policies of the SEC.

         7.6 NO MATERIAL ADVERSE EFFECT. No Material Adverse Effect with respect
to the Parent shall have occurred since the date of this Agreement (except for
any Material Adverse Effect that shall have been cured without such cure
resulting or reasonably being expected to result in a Material Adverse Effect on
Parent).

         7.7 LISTING. The shares of Parent Common Stock to be issued in the
Merger shall have been approved for listing (subject to notice of issuance) on
the Nasdaq National Market.

         7.8 NO RESTRAINTS. No temporary restraining order, preliminary or
permanent injunction or other order preventing the consummation of the Merger by
the Company shall have been issued by any court of competent jurisdiction and
remain in effect, and there shall not be any Legal Requirement enacted or deemed
applicable to the Merger that makes consummation of the Merger by the Company
illegal.


SECTION 8. TERMINATION

         8.1 TERMINATION. This Agreement may be terminated and the Merger
contemplated hereby may be abandoned prior to the Effective Time (unless
otherwise indicated below, whether before or after approval and adoption of this
Agreement and approval of the Merger by the Required Company Stockholder Vote
and whether before or after approval of the issuance of Parent Common Stock in
the Merger by the Required Parent Stockholder Vote):

                  (a) by mutual written consent of Parent and the Company;

                  (b) by either Parent or the Company if the Merger shall not
have been consummated by January 31, 1998, provided, however, that the right to
terminate this Agreement under this Section 8.1(b) shall not be available to any
party whose action or failure to act has been


                                       52
<PAGE>   59
a principal cause of or resulted in the failure of the Merger to occur on or
before such date and such action or failure to act constitutes a breach of this
Agreement;

                  (c) by either Parent or the Company if a court of competent
jurisdiction or other Governmental Body shall have issued a final and
nonappealable order, decree or ruling, or shall have taken any other action,
having the effect of permanently restraining, enjoining or otherwise prohibiting
the Merger;

                  (d) by either Parent or the Company if (i) the Company
Stockholders' Meeting (including any adjournments or postponements thereof)
shall have been held and completed and the Company's stockholders shall have
taken a final vote on a proposal to approve and adopt this Agreement and to
approve the Merger and (ii) this Agreement shall not have been adopted and
approved and the Merger shall not have been approved at such meeting by the
Required Company Stockholder Vote (provided, however, that the right to
terminate this Agreement under Section 8.1(d) shall not be available to the
Company where the failure to obtain the Required Company Stockholder Vote shall
have been caused by the action or failure to act of the Company and such action
or failure to act constitutes a material breach by the Company of this
Agreement);

                  (e) by either Parent or the Company if (i) the Parent
Stockholders' Meeting (including any adjournments or postponements thereof)
shall have been held and completed and Parent's stockholders shall have taken a
final vote on the issuance of Parent Common Stock in the Merger and (ii) the
issuance of Parent Common Stock in the Merger shall not have been approved at
such meeting by the Required Parent Stockholder Vote (provided, however, that
the right to terminate this Agreement under Section 8.1(e) shall not be
available to Parent where the failure to obtain the Required Parent Stockholder
Vote shall have been caused by the action or failure to act of Parent and such
action or failure to act constitutes a material breach by Parent of this
Agreement);

                  (f) by Parent (at any time prior to the approval and adoption
of this Agreement and the approval of the Merger by the Required Company
Stockholder Vote) or by the Company (at any time after (i) a Company
Stockholders' Meeting has been held and completed, (ii) a final vote on the
proposal to approve and adopt this Agreement and to approve the Merger has been
taken at such Company Stockholders' Meeting and (iii) the Required Company
Stockholder Vote has not been obtained at such Company Stockholders' Meeting) if
a Company Triggering Event shall have occurred;

                  (g) by Parent if any of the Company's representations and
warranties contained in this Agreement shall be or shall have become materially
inaccurate, or if any of the Company's covenants contained in this Agreement
shall have been breached in any material respect, in either case such that the
conditions set forth in Section 6.1, 6.2 or 6.6 would not be satisfied as of the
time such representation or warranty shall have become inaccurate or as of the
time of such breach; provided, however, that if an inaccuracy in the Company's
representations and warranties or a breach of a covenant by the Company is
curable by the Company and the Company is continuing to exercise all reasonable
efforts to cure such inaccuracy or breach during the 45-day period commencing
upon delivery by Parent of a written notice to the Company describing such
inaccuracy or breach, then Parent may not terminate this Agreement under this
Section 8.1(g) on account of such inaccuracy


                                       53
<PAGE>   60
or breach until the end of such cure period (if such inaccuracy or breach then
remains uncured), and provided further that Parent may not terminate this
Agreement pursuant to this Section 8.1(g) if it shall have materially breached
this Agreement (it being understood that (i) the cure period described in this
Section 8.1(g) shall in no event extend beyond January 31, 1998, and (ii) that
any such cure shall not individually or in the aggregate have or reasonably be
expected to have a Material Adverse Effect on the Company);

                  (h) by the Company if any of Parent's representations and
warranties contained in this Agreement shall be or shall have become materially
inaccurate, or if any of Parent's covenants contained in this Agreement shall
have been breached in any material respect, in either case such that the
conditions set forth in Section 7.1, 7.2 or 7.6 would not be satisfied as of the
time such representation or warranty shall have become inaccurate or as of the
time of such breach; provided, however, that if an inaccuracy in Parent's
representations and warranties or a breach of a covenant by Parent is curable by
Parent and Parent is continuing to exercise all reasonable efforts to cure such
inaccuracy or breach during the 45-day period commencing upon delivery by the
Company of a written notice to Parent describing such inaccuracy or breach, then
the Company may not terminate this Agreement under this Section 8.1(h) on
account of such inaccuracy or breach until the end of such cure period (if such
inaccuracy or breach then remains uncured), and provided further that the
Company may not terminate this Agreement pursuant to this Section 8.1(h) if it
shall have materially breached this Agreement (it being understood that (i) the
cure period described in this Section 8.1(h) shall in no event extend beyond
January 31, 1998 and (ii) that any such cure shall not individually or in the
aggregate have or reasonably be expected to have a Material Adverse Effect on
Parent); or

                  (i) by Parent, if (i) any Person who has signed a Voting
Agreement in favor of Parent, in the form of Exhibit G, shall have breached,
withdrawn, amended or modified in a manner adverse to Parent, such Voting
Agreement, (ii) if, prior to the Effective Time, any Person who has signed a
Voting Agreement challenges the validity of such Voting Agreement, (iii) if any
Person who has signed a Voting Agreement in any way disposes of or encumbers any
of the shares of Company Common Stock owned directly or beneficially by such
Person as of the date of this Agreement, or (iv) if any Person who has signed a
Voting Agreement votes in favor of an Acquisition Proposal.

         8.2 EFFECT OF TERMINATION. In the event of the termination of this
Agreement as provided in Section 8.1, this Agreement shall be of no further
force or effect and shall relieve Parent, Merger Sub and the Company of any
liability or obligation under this Agreement; provided, however, that the
liabilities and obligations under (i) Sections 5.9, 8.2, 8.3 and 9 shall survive
the termination of this Agreement and shall remain in full force and effect, and
(ii) the termination of this Agreement shall not relieve any party from any
liability for any breach of any representation, warranty or covenant contained
in this Agreement.

         8.3 EXPENSES; TERMINATION FEES.

                  (a) Except as set forth in this Section 8.3, all fees and
expenses incurred in connection with this Agreement and the transactions
contemplated by this Agreement shall be paid by the party incurring such
expenses, whether or not the Merger is consummated; provided, however,


                                       54
<PAGE>   61
that Parent and the Company shall share equally all fees and expenses, other
than attorneys' fees, incurred in connection with the filing, printing and
mailing of the Form S-4 Registration Statement and the Joint Proxy Statement and
any amendments or supplements thereto; and provided further that to the extent
that the aggregate of the fees and expenses specified in Section 2.27 exceeds
$500,000 (the amount of such excess shall be referred to herein as "Excess
Company Merger Expenses"), the adjustment set forth in Section 1.5(e) shall be
made.

                  (b) If this Agreement is terminated:

                           (i) pursuant to Section 8.1(d) by Parent or the
         Company (and if by Parent, only if at the time the Company
         Stockholders' Meeting was held, there existed a publicly announced and
         pending Acquisition Proposal),

                           (ii) pursuant to Section 8.1(f) by Parent or the
         Company (and if by Parent, unless the occurrence of a Company
         Triggering Event is attributable to Parent's failure to meet the
         condition set forth in Section 7.6 (but only if such failure to meet
         the condition set forth in Section 7.6 arose from (A) Parent's breach
         of or failure to perform its covenants as set forth in Sections 4 and
         5, or (B) Parent's breach of or inaccuracy of any of its
         representations and warranties as set forth in Section 3 that resulted
         from facts, circumstances, events or conditions which existed at any
         time prior to and through the date of this Agreement)),

                           (iii) pursuant to Section 8.1(h) by the Company
         (provided that such termination under Section 8.1(h) is not as a result
         of (A) Parent's breach of or failure to perform its covenants as set
         forth in Sections 4 and 5, or (B) Parent's breach of or inaccuracy of
         any of its representations and warranties as set forth in Section 3
         that resulted from facts, circumstances, events or conditions which
         existed at any time prior to and through the date of this Agreement),
         or

                           (iv) pursuant to Section 8.1(i),

and if an Acquisition Transaction is consummated within twelve months from the
date this Agreement is terminated, then the Company shall pay to Parent within
two business days following the consummation of such Acquisition Transaction,
the sum of $1,000,000 by wire transfer of immediately available funds to an
account designated by Parent.

                  (c) If this Agreement is terminated:

                           (i) pursuant to Section 8.1(b) by Parent (unless
         failure to consummate the Merger is attributable to the restrictions or
         restraints imposed by any Governmental Body or because the conditions
         set forth in Sections 6.3, 6.5(a), 6.5(b), 6.5(c), 6.5(d), (but only if
         such condition was not met due to a change in the Company's situation
         between the date of this Agreement and the termination date), 6.5(g),
         and 6.6 (but only if such Material Adverse Effect arose from (A) the
         Company's breach of or failure to perform its covenants as set forth in
         Sections 4 and 5, or (B) the Company's breach of or inaccuracy of any
         of its


                                       55
<PAGE>   62
         representations and warranties as set forth in Section 2 that resulted
         from facts, circumstances, events or conditions which existed at any
         time prior to and through the date of this Agreement) have not been
         met),

                           (ii) pursuant to Section 8.1(e) by either Parent or
         the Company (and if by the Company, unless the condition set forth in
         Section 6.6 has not been met by the Company at the time the Parent
         Stockholders' Meeting, during which the Required Parent Stockholder
         Vote was not obtained, is held (but only if such failure to meet the
         condition set forth in Section 6.6 arose from (A) the Company's breach
         of or failure to perform its covenants as set forth in Sections 4 and
         5, or (B) the Company's breach of or inaccuracy of any of its
         representations and warranties as set forth in Section 2 that resulted
         from facts, circumstances, events or conditions which existed at any
         time prior to and through the date of this Agreement)),

                           (iii) pursuant to Section 8.1(g) by Parent (provided
         that such termination under Section 8.1(g) is not as a result of (A)
         the Company's breach of or failure to perform its covenants as set
         forth in Sections 4 and 5, or (B) the Company's breach of or inaccuracy
         of any of its representations and warranties as set forth in Section 2
         that resulted from facts, circumstances, events or conditions which
         existed at any time prior to and through the date of this Agreement),
         or

                           (iv) pursuant to Section 8.1(h) by the Company
         (provided that such termination under Section 8.1(h) is as a result of
         (A) Parent's breach of or failure to perform its covenants as set forth
         in Sections 4 and 5, or (B) Parent's breach of or inaccuracy of any of
         its representations and warranties as set forth in Section 3 that
         resulted from facts, circumstances, events or conditions which existed
         at any time prior to and through the date of this Agreement),

then, Parent shall pay to the Company two business days following the date this
Agreement is terminated as described in this Section 8.3(c), the sum of
$1,000,000 by wire transfer of immediately available funds to an account
designated by the Company.


SECTION 9. MISCELLANEOUS PROVISIONS

         9.1 AMENDMENT. This Agreement may be amended by the Company and Parent
at any time (whether before or after approval of this Agreement and the Merger
by the stockholders of the Company; and whether before or after approval of the
issuance of Parent Common Stock in the Merger by Parent's stockholders)
provided, however, that (i) after any such approval of this Agreement and the
Merger by the Company's stockholders, no amendment shall be made which by law
requires further approval of the stockholders of the Company without the further
approval of such stockholders, and (ii) after any such approval of the issuance
of Parent Common Stock in the Merger, no amendment shall be made which by law or
NASD regulation requires further approval of Parent's stockholders without the
further approval of such stockholders. This Agreement may not be amended except
by an instrument in writing signed on behalf of each of the parties hereto.


                                       56
<PAGE>   63
         9.2 WAIVER.

                  (a) No failure on the part of any party to exercise any power,
right, privilege or remedy under this Agreement, and no delay on the part of any
party in exercising any power, right, privilege or remedy under this Agreement,
shall operate as a waiver of such power, right, privilege or remedy; and no
single or partial exercise of any such power, right, privilege or remedy shall
preclude any other or further exercise thereof or of any other power, right,
privilege or remedy.

                  (b) No party shall be deemed to have waived any claim arising
out of this Agreement, or any power, right, privilege or remedy under this
Agreement, unless the waiver of such claim, power, right, privilege or remedy is
expressly set forth in a written instrument duly executed and delivered on
behalf of such party; and any such waiver shall not be applicable or have any
effect except in the specific instance in which it is given.

         9.3 NO SURVIVAL OF REPRESENTATIONS AND WARRANTIES. None of the
representations and warranties contained in this Agreement or in any certificate
delivered pursuant to this Agreement shall survive the Merger.

         9.4 ENTIRE AGREEMENT; COUNTERPARTS; APPLICABLE LAW; JURISDICTION.

                  (a) This Agreement and the other agreements referred to herein
between Parent and the Company constitute the entire agreement and supersede all
prior agreements and understandings, both written and oral, among or between any
of the parties with respect to the subject matter hereof and thereof.

                  (b) This Agreement may be executed in several counterparts,
each of which shall be deemed an original and all of which shall constitute one
and the same instrument, and shall be governed in all respects by the laws of
the State of Delaware as applied to contracts entered into and to be performed
entirely within Delaware.

                  (c) Each of the parties hereto (i) consents to submit itself
to the personal jurisdiction of any court of the United States located in the
State of Delaware or of any Delaware state court in the event any dispute arises
out of this Agreement or the transactions contemplated by this Agreement, (ii)
agrees that it will not attempt to deny or defeat such personal jurisdiction by
motion or other request for leave from any such court and (iii) agrees that it
will not bring any action relating to this Agreement or the transactions
contemplated by this Agreement in any court other than a court of the United
States located in the State of Delaware or a Delaware state court.

         9.5 ATTORNEYS' FEES. In any action at law or suit in equity to enforce
this Agreement or the rights of any of the parties hereunder, the prevailing
party in such action or suit shall be entitled to receive a reasonable sum for
its attorneys' fees and all other reasonable costs and expenses incurred in such
action or suit.

         9.6 ASSIGNABILITY. This Agreement shall be binding upon, and shall be
enforceable by and inure solely to the benefit of, the parties hereto and their
respective successors and assigns;


                                       57
<PAGE>   64
provided, however, that neither this Agreement nor any of the Company's rights
hereunder may be assigned, by operation of law or otherwise, in whole or in part
by any of the parties without the prior written consent of the other party, and
any attempted assignment of this Agreement or any of such rights by a party
without such consent shall be void and of no effect. Except as set forth in
Section 5.6 with respect to the current directors and officers of the Company,
nothing in this Agreement, express or implied, is intended to or shall confer
upon any Person any right, benefit or remedy of any nature whatsoever under or
by reason of this Agreement.

         9.7 NOTICES. Any notice or other communication required or permitted to
be delivered to any party under this Agreement shall be in writing and shall be
deemed properly delivered, given and received when delivered (by hand, by
registered mail, by courier or express delivery service or by facsimile) to the
address or facsimile telephone number set forth beneath the name of such party
below (or to such other address or facsimile telephone number as such party
shall have specified in a written notice given to the other parties hereto):

            IF TO PARENT:           Lumisys Incorporated
                                    225 Humboldt Court
                                    Sunnyvale, CA 94086
                                    Attn: Stephen J. Weiss


            WITH A COPY TO:         Cooley Godward LLP
                                    Five Palo Alto Square
                                    3000 El Camino Real
                                    Palo Alto, CA 94306-2155
                                    Attn:  Andrei M. Manoliu




            IF TO MERGER SUB:       SAC Acquisition Corporation
                                    c/o Lumisys Incorporated
                                    225 Humboldt Court
                                    Sunnyvale, CA 94086
                                    Attn: Stephen J. Weiss


            WITH A COPY TO:         Cooley Godward LLP
                                    Five Palo Alto Square
                                    3000 El Camino Real
                                    Palo Alto, CA 94306-2155
                                    Attn:  Andrei M. Manoliu


                                       58
<PAGE>   65
            IF TO THE COMPANY:      CompuRAD, Inc.
                                    1350 North Kolb Road
                                    Tucson, Arizona 85715
                                    Attn: Dr. Phillip Berman


            WITH A COPY TO:         Wilson Sonsini Goodrich & Rosati
                                    650 Page Mill Road
                                    Palo Alto, CA 94304
                                    Attn:  David J. Segre

         9.8 CONSTRUCTION.

                  (a) For purposes of this Agreement, whenever the context
requires: the singular number shall include the plural, and vice versa; the
masculine gender shall include the feminine and neuter genders; the feminine
gender shall include the masculine and neuter genders; and the neuter gender
shall include masculine and feminine genders.

                  (b) The parties hereto agree that any rule of construction to
the effect that ambiguities are to be resolved against the drafting party shall
not be applied in the construction or interpretation of this Agreement.

                  (c) As used in this Agreement, the words "include" and
"including," and variations thereof, shall not be deemed to be terms of
limitation, but rather shall be deemed to be followed by the words "without
limitation."

                  (d) Except as otherwise indicated, all references in this
Agreement to "Sections" and "Exhibits" are intended to refer to Sections of this
Agreement and Exhibits to this Agreement.


                                       59
<PAGE>   66
         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed as of the date first above written.


                                          LUMISYS INCORPORATED



                                          By:___________________________________




                                          SAC ACQUISITION CORPORATION


                                          By:___________________________________




                                          COMPURAD, INC.


                                          By:___________________________________


                                       60
<PAGE>   67
                                    EXHIBIT A

                               CERTAIN DEFINITIONS

         For purposes of the Agreement (including this Exhibit A):

         ACQUISITION PROPOSAL. "Acquisition Proposal" shall mean any offer,
proposal or inquiry (other than an offer or proposal by Parent) contemplating or
otherwise relating to any Acquisition Transaction.

         ACQUISITION TRANSACTION. "Acquisition Transaction" shall mean any
transaction or series of related transactions involving:

                  (a) other than the transactions contemplated by this
Agreement, any merger, consolidation, share exchange, business combination,
issuance of securities, acquisition of securities, tender offer, exchange offer
or other similar transaction (i) in which the Company is a constituent
corporation, (ii) in which a Person or "group" (as defined in the Exchange Act
and the rules promulgated thereunder) of Persons directly or indirectly acquires
the Company or more than 50% of the Company's business or directly or indirectly
acquires beneficial or record ownership of securities representing more than 20%
of the outstanding securities of any class of voting securities of the Company,
or (iii) in which the Company issues securities representing more than 20% of
the outstanding securities of any class of voting securities of the Company;

                  (b) any sale, lease, exchange, transfer, license, acquisition
or disposition of more than 50% of the assets of the Company; or

                  (c) any liquidation or dissolution of the Company.

         AGREEMENT. "Agreement" shall mean the Agreement and Plan of Merger and
Reorganization to which this Exhibit A is attached, as it may be amended from
time to time.

         COMPANY COMMON STOCK. "Company Common Stock" shall mean the Common
Stock, $0.01 par value per share, of the Company.

         COMPANY CONTRACT. "Company Contract" shall mean any Contract: (a) to
which the Company is a party; (b) by which the Company or any asset of the
Company is or may become bound or under which the Company has, or may become
subject to, any obligation; or (c) under which the Company has or may acquire
any right or interest.

         COMPANY DISCLOSURE SCHEDULE. "Company Disclosure Schedule" shall mean
the disclosure schedule that has been prepared by the Company and that has been
delivered by the Company to Parent on the date of this Agreement and signed by
the President of the Company.

         COMPANY PROPRIETARY ASSET. "Company Proprietary Asset" shall mean any
Proprietary Asset owned by or licensed to the Company or otherwise used by the
Company.


                                      A-1
<PAGE>   68
         COMPANY TRIGGERING EVENT. A "Company Triggering Event" shall be deemed
to have occurred if: (i) the Board of Directors of the Company shall have failed
to recommend unanimously, or shall for any reason have withdrawn or shall have
amended or modified in a manner adverse to Parent its unanimous recommendation
in favor of, the Merger or approval of this Agreement; (ii) the Company shall
have failed to include in the Joint Proxy Statement the unanimous recommendation
of the Board of Directors of the Company in favor of approval of this Agreement
and the Merger; (iii) the Board of Directors of the Company shall have approved,
endorsed or recommended any Acquisition Proposal; (iv) the Company shall have
entered into any letter of intent or similar document or any Contract relating
to any Acquisition Proposal; (v) a tender or exchange offer relating to
securities of the Company shall have been commenced and the Company shall not
have sent to its securityholders, within ten business days after the
commencement of such tender or exchange offer, a statement disclosing that the
Company recommends rejection of such tender or exchange offer; or (vii) an
Acquisition Proposal is publicly announced, and the Company fails to issue a
press release announcing its opposition to such Acquisition Proposal within five
business days after such Acquisition Proposal is announced.

         CONSENT. "Consent" shall mean any approval, consent, ratification,
permission, waiver or authorization (including any Governmental Authorization).

         CONTRACT. "Contract" shall mean any written, oral or other agreement,
contract, subcontract, lease, understanding, instrument, note, option, warranty,
purchase order, license, sublicense, insurance policy, benefit plan or legally
binding commitment or undertaking of any nature.

         ENCUMBRANCE. "Encumbrance" shall mean any lien, pledge, hypothecation,
charge, mortgage, security interest, encumbrance, claim, infringement,
interference, option, right of first refusal, preemptive right, community
property interest or restriction of any nature (including any restriction on the
voting of any security, any restriction on the transfer of any security or other
asset, any restriction on the receipt of any income derived from any asset, any
restriction on the use of any asset and any restriction on the possession,
exercise or transfer of any other attribute of ownership of any asset).

         ENTITY. "Entity" shall mean 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.

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

         FORM S-4 REGISTRATION STATEMENT. "Form S-4 Registration Statement"
shall mean the registration statement on Form S-4 to be filed with the SEC by
Parent in connection with issuance of Parent Common Stock in the Merger, as said
registration statement may be amended prior to the time it is declared effective
by the SEC.


                                      A-2
<PAGE>   69
         GOVERNMENTAL AUTHORIZATION. "Governmental Authorization" shall mean
any: (a) permit, license, certificate, franchise, permission, variance,
clearance, registration, qualification or authorization issued, granted, given
or otherwise made available by or under the authority of any Governmental Body
or pursuant to any Legal Requirement; or (b) right under any Contract with any
Governmental Body.

         GOVERNMENTAL BODY. "Governmental Body" shall mean any: (a) nation,
state, commonwealth, province, territory, county, municipality, district or
other jurisdiction of any nature; (b) federal, state, 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).

         JOINT PROXY STATEMENT. "Joint Proxy Statement" shall mean the joint
proxy statement/prospectus to be sent to the Company's stockholders in
connection with the Company Stockholder's Meeting and to Parent's stockholders
in connection with the Parent Stockholders' Meeting.

         KNOWLEDGE. A party shall be deemed to have "knowledge" of a particular
fact or other matter if:

                  (a) an officer or director of such party is actually aware of
such fact or other matter; or

                  (b) a prudent officer or director of such party could be
expected to discover or otherwise become aware of such fact or other matter in
the course of conducting a reasonably diligent investigation concerning the
truth or existence of such fact or other matter.

         LEGAL PROCEEDING. "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.

         LEGAL REQUIREMENT. "Legal Requirement" shall mean any federal, state,
local, municipal, foreign or other law, statute, constitution, principle of
common law, resolution, ordinance, code, edict, decree, rule, regulation, ruling
or requirement issued, enacted, adopted, promulgated, implemented or otherwise
put into effect by or under the authority of any Governmental Body.

         MATERIAL ADVERSE EFFECT. One or more events, violations, inaccuracies,
circumstances or other matters will be deemed to have a "Material Adverse
Effect" on a party if such event(s), violation(s), inaccuracy(ies),
circumstance(s) or other matter(s) would have a material adverse effect on: (i)
the business, condition, capitalization, assets, liabilities, operations or
financial performance of the applicable party and its Subsidiaries taken as a
whole, (ii) the ability of the party to consummate the Merger or any of the
other transactions contemplated by this Agreement or to


                                      A-3
<PAGE>   70
perform obligations under this Agreement, or (iii) Parent's ability to vote,
receive dividends with respect to or otherwise exercise ownership rights with
respect to the stock of the Surviving Corporation except that any event(s),
violation(s), inaccuracy(ies), circumstance(s) or other matter(s) from the
following shall not be taken into account in determining whether there has been
or there is reasonably expected to be a Material Adverse Effect: (i) general
economic conditions or conditions affecting the party's industry generally, (ii)
the delay or cancellation of orders for the party's products from customers or
distributors (or other resellers) directly attributable to the announcement of
this Agreement or pendency of the Merger, (iii) the lack of or delay in
availability of components or raw materials from the party's suppliers directly
attributable to the announcement of this Agreement or pendency of the Merger,
and (iv) stockholder litigation brought or threatened against the party or any
member of the Board of Directors of the party with respect to this Agreement or
pendency of the Merger, provided, however, that in any dispute, the party
asserting that any of the foregoing is "directly attributable" to or "with
respect to" this Agreement or pendency of the Merger shall have the burden of
proof of such assertion by a preponderance of the evidence.

         PARENT COMMON STOCK. "Parent Common Stock" shall mean the Common Stock,
$0.001 par value per share, of Parent.

         "PARENT DISCLOSURE SCHEDULE" shall mean the disclosure schedule that
has been prepared by Parent and that has been delivered by Parent to the Company
on the date of this Agreement and signed by the President of Parent.

         PERSON. "Person" shall mean any individual, Entity or Governmental
Body.

         PROPRIETARY ASSET. "Proprietary Asset" shall mean any: (a) patent,
patent application, trademark (whether registered or unregistered), trademark
application, trade name, fictitious business name, service mark (whether
registered or unregistered), service mark application, copyright (whether
registered or unregistered), copyright application, maskwork, maskwork
application, trade secret, know-how, customer list, franchise, system, computer
software, computer program, source code, algorithm, invention, design,
blueprint, engineering drawing, proprietary product, technology, proprietary
right or other intellectual property right or intangible asset; or (b) right to
use or exploit any of the foregoing.

         REPRESENTATIVES. "Representatives" shall mean officers, directors,
employees, agents, attorneys, accountants, advisors and representatives.

         SEC. "SEC" shall mean the United States Securities and Exchange
Commission.

         SECURITIES ACT. "Securities Act" shall mean the Securities Act of 1933,
as amended.

         SUBSIDIARY. An entity shall be deemed to be a "Subsidiary" of another
Person if such Person directly or indirectly owns, beneficially or of record, an
amount of voting securities of other interests in such Entity that is sufficient
to enable such Person to elect at leased a majority of the members of such
Entity's Board of Directors or other governing body.


                                      A-4
<PAGE>   71
         SUPERIOR OFFER. "Superior Offer" shall mean any bona fide offer made by
a third party to acquire, directly or indirectly more than 50% of outstanding
Company Common Stock on terms that the Board of Directors of the Company
determines in its reasonable judgment, after consultation with its financial
advisor, to be more favorable to the Company's stockholders than the terms of
the Merger; provided, however, that any such offer shall not be deemed to be a
"Superior Offer" if any financing required to consummate the transaction
contemplated by such offer is neither committed nor, in the good faith judgment
of the Board of Directors of the Company, reasonably capable of being obtained
by such third party.

         TAX. "Tax" shall mean any tax (including any income tax, franchise tax,
capital gains tax, gross receipts tax, value-added tax, surtax, excise tax, ad
valorem tax, transfer tax, stamp tax, sales tax, use tax, property tax, business
tax, withholding tax or payroll tax), levy, assessment, tariff, duty (including
any customs duty), deficiency or fee, and any related charge or amount
(including any fine, penalty or interest), imposed, assessed or collected by or
under the authority of any Governmental Body.

         TAX RETURN. "Tax Return" shall mean any return (including any
information return), report, statement, declaration, estimate, schedule, notice,
notification, form, election, certificate or other document or information filed
with or submitted to, or required to be filed with or submitted to, any
Governmental Body in connection with the determination, assessment, collection
or payment of any Tax or in connection with the administration, implementation
or enforcement of or compliance with any Legal Requirement relating to any Tax.


                                      A-5
<PAGE>   72
                                    EXHIBIT B

                          CERTIFICATE OF INCORPORATION
                                       OF
                             [SURVIVING CORPORATION]

                                       I.

         The name of this corporation is [Surviving Corporation].

                                      II.

         The address, including street, number, city, and county, of the
registered office of the corporation in the State of Delaware is 1013 Centre
Road, City of Wilmington, 19805, County of New Castle; and the name of the
registered agent of the corporation in the State of Delaware at such address is
Corporation Service Company.

                                      III.

         The purpose of this corporation is to engage in any lawful act or
activity for which a corporation may be organized under the Delaware General
Corporation Law.

                                      IV.

         1. This corporation is authorized to issue one class of stock to be
designated "Common Stock". The total number of shares of Common Stock which the
corporation is authorized to issue is one thousand (1,000) shares each having a
par value of one-tenth of one cent ($0.001).


                                      A-1
<PAGE>   73
                                       V.

         For the management of the business and for the conduct of the affairs
of the corporation, and in further definition, limitation and regulation of the
powers of the corporation, of its directors and of its stockholders or any class
thereof, as the case may be, it is further provided that:

         1. The management of the business and the conduct of the affairs of the
corporation shall be vested in its Board of Directors. The number of directors
which shall constitute the whole Board of Directors shall be fixed by the Board
of Directors in the manner provided in the Bylaws.

         2. The Board of Directors may from time to time make, amend, supplement
or repeal the Bylaws; provided, however, that the stockholders may change or
repeal any Bylaw adopted by the Board of Directors by the affirmative vote of
the holders of a majority of the voting power of all of the then outstanding
shares of the capital stock of the corporation (considered for this purpose as
one class); and, provided further, that no amendment or supplement to the Bylaws
adopted by the Board of Directors shall vary or conflict with any amendment or
supplement thus adopted by the stockholders.

         3. The directors of the corporation need not be elected by written
ballot unless the Bylaws so provide.

                                      VI.

         1. To the fullest extent permitted by the Delaware General Corporation
Law as the same exists or as may hereafter be amended, no director of the
corporation shall be personally liable to the corporation or its stockholders
for monetary damages for breach of fiduciary duty as a director.

         2. The corporation may indemnify to the fullest extent permitted by law
any person made or threatened to be made a party to an action or proceeding,
whether criminal, civil,


                                      A-2
<PAGE>   74
administrative or investigative, by reason of the fact that he, his testator or
intestate is or was a director, officer or employee of the corporation or any
predecessor of the corporation or serves or served at any other enterprise as a
director, officer or employee at the request of the corporation or any
predecessor to the corporation.

         3. Neither any amendment nor repeal of this Article VI, nor the
adoption of any provisions of the Corporation's Certificate of Incorporation
inconsistent with this Article VI, shall eliminate or reduce the effect on this
Article VI, in respect of any matter occurring, or any action, suite, claim or
proceeding accruing or arising or that, but for this Article VI, would accrue or
arise, prior to such amendment, repeal, or adoption of an inconsistent
provision.

                                      VII.

         The name and mailing address of the incorporator is as follows:

                                Andrei M. Manoliu
                               Cooley Godward LLP
                              Five Palo Alto Square
                               3000 El Camino Real
                            Palo Alto, CA 94306-0663

                                     VIII.

         The corporation is to have perpetual existence.

                                      IX.

         The corporation reserves the right to amend, alter, change or repeal
any provision contained in this Certificate of Incorporation, in the manner now
or hereafter prescribed by statute, and all rights conferred upon the
stockholders herein are granted subject to this right.


                                      A-3
<PAGE>   75
I, THE UNDERSIGNED, being the incorporator hereinbefore named, for the purpose
of forming a corporation pursuant to the Delaware General Corporation Law, do
make this Certificate, hereby declaring and certifying that this is my act and
deed and that the facts herein stated are true and accordingly have hereunto set
my hand this ___ day of October, 1997.


                                    ____________________________________________
                                    ANDREI M. MANOLIU
                                    SOLE INCORPORATOR


                                      A-4
<PAGE>   76
                                    EXHIBIT C



                           FORM OF AFFILIATE AGREEMENT


         THIS AFFILIATE AGREEMENT (this "Agreement") is being executed and
delivered as of _________ __, 1997 by _________ ("Affiliate") in favor of and
for the benefit of LUMISYS INCORPORATED, a Delaware corporation ("Parent").

                                    RECITALS

         A.       Affiliate is a stockholder [and an officer and director] of
COMPURAD, INC., a Delaware corporation (the "Company").

         B.       Parent, the Company and SAC Acquisition Corporation, a
Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"),
have entered into an Agreement and Plan of Merger and Reorganization dated as of
_________ __, 1997 (the "Reorganization Agreement"), providing for the merger of
Merger Sub with and into the Company (the "Merger"). The Reorganization
Agreement contemplates that, upon consummation of the Merger, (i) the Company's
stockholders will receive shares of common stock, par value $.001 per share, of
Parent ("Parent Common Stock") in exchange for their shares of the common stock,
par value $.01 per share, of the Company ("Company Common Stock") and (ii) the
Company will become a wholly owned subsidiary of Parent. It is accordingly
contemplated that Affiliate will receive shares of Parent Common Stock in the
Merger.

         C.       Affiliate may be deemed to be an "affiliate" of the Company
for purposes of: (i) the restrictions on resale imposed by the Securities Act of
1933, as amended (the "Act"); and (ii) determining Parent's eligibility to
account for the Merger as a "pooling of interests" under applicable "pooling of
interests" accounting requirements (including Accounting Principles Board
Opinion No. 16 and Accounting Series Releases 130 and 135, as amended, of the
Securities and Exchange Commission (the "SEC")).

                                    AGREEMENT

         1.       REPRESENTATIONS AND WARRANTIES. Affiliate represents and
warrants to Parent as follows:

                  (a)      RESTRICTIONS AS AFFILIATE.

                           (i)      Affiliate is the holder and beneficial owner
of _____________ (_____) shares of Company Common Stock (the "Company Shares"),
and Affiliate has good and valid title to the Company Shares, free and clear of
any liens, pledges, security interests, adverse claims, equities, options,
proxies, charges, encumbrances or restrictions of any nature.


                                      A-1
<PAGE>   77
                           (ii)     Affiliate has carefully read this Agreement,
and has discussed with counsel to the extent Affiliate felt necessary the
limitations imposed on Affiliate's ability to sell, transfer or otherwise
dispose of the Company Shares and the shares of Parent Common Stock that
Affiliate is to receive in the Merger (the "Parent Shares"). Affiliate fully
understands the limitations this Agreement places upon Affiliate's ability to
sell, transfer or otherwise dispose of the Company Shares and the Parent Shares.

                           (iii)    Affiliate understands that the
representations, warranties and covenants set forth in this Agreement will be
relied upon by Parent and its counsel and accountants for purposes of
determining Parent's eligibility to account for the Merger as a "pooling of
interests," for purposes of determining whether Parent should proceed with the
Merger and for various other purposes.

                  (b)      CONTINUITY OF INTEREST.

                           (i)      Affiliate did not acquire any of the Company
Shares in contemplation of the Merger.

                           (ii)     Affiliate has not engaged in a Sale (as
defined below) of any shares of Company Common Stock in contemplation of the
Merger.

                           (iii)    Affiliate has no plan or intention to engage
in a sale, exchange, transfer, distribution, redemption or reduction in any way
of Affiliate's risk of ownership (by short sale or otherwise), or other
disposition, directly or indirectly (such actions being collectively referred to
herein as a "Sale") of more than fifty percent (50%) of the shares of Parent
Common Stock to be received by Affiliate in the Merger. (For purposes of the
preceding sentence, shares of Company Common Stock (or the portion thereof) (i)
with respect to which Affiliate will receive consideration in the Merger other
than shares of Parent Common Stock (including cash to be received in lieu of
fractional shares of Parent Common Stock) and/or (ii) with respect to which a
Sale (A) occurred in contemplation of the Merger or (B) will occur prior to the
Merger, shall be considered shares of Company Common Stock exchanged for shares
of Parent Common Stock in the Merger and then disposed of pursuant to a plan).

                           (iv)     Affiliate has no plan or intention to
exercise dissenters' rights in connection with the Merger.


                                      A-2
<PAGE>   78
                           (v)      Affiliate is not aware of, or participating
in, any plan or intention on the part of the stockholders of the Company to
engage in a Sale or Sales of more than fifty percent (50%) of the shares of
Parent Common Stock to be received in the Merger. (For purposes of the preceding
sentence, shares of Company Common Stock (or the portion thereof) (i) with
respect to which a stockholder of the Company receives consideration in the
Merger other than shares of Parent Common Stock (including, without limitation,
cash received pursuant to the exercise of dissenters' rights or in lieu of a
fractional share of Parent Common Stock) or (ii) with respect to which a Sale
occurs prior to and in contemplation of the Merger, shall be considered shares
of outstanding Company Common Stock exchanged for shares of Parent Common Stock
in the Merger and then disposed of pursuant to a plan).

                           (vi)     Except to the extent written notification to
the contrary is received by Parent and the Company from Affiliate prior to the
consummation of the Merger, the representations, warranties and certifications
contained herein shall be accurate at all times from the date hereof through the
date on which the Merger is consummated.

                           (vii)    Affiliate has consulted with such legal
counsel and financial advisors as he has deemed appropriate in connection with
the execution of this Agreement.

                           (viii)   Affiliate understands that Parent, Merger
Sub, the Company, and the Company's stockholders, as well as legal counsel to
Parent, Merger Sub and the Company (in connection with rendering their opinions
that the Merger will be a "reorganization" within the meaning of Section 368(a)
of the Internal Revenue Code of 1986, as amended) will be relying on (a) the
truth and accuracy of the representations, warranties and certifications
contained herein and (b) Affiliate's performance of the obligations set forth
herein.


         2.       PROHIBITIONS AGAINST TRANSFER.

                  (a)      Affiliate agrees that during the period from the date
on which the Merger is consummated through the date on which financial results
covering at least thirty (30) days of post-Merger combined operations of Parent
and the Company have been published by Parent (within the meaning of the
applicable "pooling of interests" accounting requirements), Affiliate agrees
that (i) he shall not sell, transfer or otherwise dispose of, or reduce his
interest in or risk relating to, any shares of Parent Common Stock (including
the Parent Shares), and (ii) he shall ensure that none of his children sells,
transfers or otherwise disposes of, or reduces his interest in or risk relating
to, any shares of Parent Common Stock received in the Merger.

                  (b)      Without limiting the generality of Section 2(a) of
this Agreement, Affiliate shall not effect any sale, transfer or other
disposition of any of the Parent Shares, and Affiliate shall ensure that none of
his children effects any sale, transfer or other disposition of any shares of
Parent Common Stock received in the Merger; unless:

                           (i)      such sale, transfer or other disposition has
                  been registered under the Act;


                                      A-3
<PAGE>   79
                           (ii)     such sale, transfer or other disposition is
                  made in conformity with the requirements of Rule 144 under the
                  Act, as evidenced by a broker's letter and a representation
                  letter executed by Affiliate (satisfactory in form and content
                  to Parent) stating that such requirements have been met;

                           (iii)    counsel reasonably satisfactory to Parent
                  shall have advised Parent in a written opinion letter
                  (satisfactory in form and content to Parent), upon which
                  Parent may rely, that such sale, transfer or other disposition
                  will be exempt from registration under the Act; or

                           (iv)     an authorized representative of the SEC
                  shall have rendered written advice to Affiliate to the effect
                  that the SEC would take no action, or that the staff of the
                  SEC would not recommend that the SEC take action, with respect
                  to such sale, transfer or other disposition, and a copy of
                  such written advice and all other related communications with
                  the SEC shall have been delivered to Parent.

         3.       STOP TRANSFER INSTRUCTIONS; LEGEND.

                  Affiliate understands that the Parent Shares will be
characterized as "restricted securities" for purposes of Rule 144 under the Act,
and that therefore any sale, transfer or other disposition of any of the Parent
Shares must be made in conformity with the provisions of said Rule or be
registered under the Act. Affiliate acknowledges and agrees that (i) stop
transfer instructions will be given to Parent's transfer agent with respect to
the Parent Shares, and (ii) each certificate representing any of such shares
shall bear a legend identical or similar in effect to the following legend
(together with any other legend or legends required by applicable state
securities laws or otherwise):

            "THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
            UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "ACT") AND MAY NOT
            BE OFFERED, SOLD OR OTHERWISE TRANSFERRED, ASSIGNED, PLEDGED OR
            HYPOTHECATED UNLESS REGISTERED UNDER THE ACT OR UNLESS AN EXEMPTION
            FROM THE REGISTRATION REQUIREMENTS OF THE ACT IS AVAILABLE. THE
            SHARES REPRESENTED BY THIS CERTIFICATE MAY ONLY BE TRANSFERRED IN
            ACCORDANCE WITH THE TERMS OF AN AGREEMENT DATED AS OF _________ __,
            1997, BETWEEN THE REGISTERED HOLDER HEREOF AND Lumisys Incorporated,
            A COPY OF WHICH AGREEMENT IS ON FILE AT THE PRINCIPAL OFFICES OF
            LUMISYS INCORPORATED"

         4.       INDEPENDENCE OF OBLIGATIONS. The covenants and obligations of
Affiliate set forth in this Agreement shall be construed as independent of any
other agreement or arrangement between Affiliate, on the one hand, and the
Company or Parent, on the other. The existence of any 


                                      A-4
<PAGE>   80
claim or cause of action by Affiliate against the Company or Parent shall not
constitute a defense to the enforcement of any of such covenants or obligations
against Affiliate.

         5.       SPECIFIC PERFORMANCE. Affiliate agrees that in the event of
any breach or threatened breach by Affiliate of any covenant, obligation or
other provision contained in this Agreement, Parent shall be entitled (in
addition to any other remedy that may be available to Parent) to: (a) a decree
or order of specific performance or mandamus to enforce the observance and
performance of such covenant, obligation or other provision; and (b) an
injunction restraining such breach or threatened breach.

         6.       INDEMNIFICATION. Without in any way limiting any of the rights
or remedies otherwise available to Parent, Affiliate shall hold harmless and
indemnify Parent from and against, and shall compensate and reimburse Parent
for, any loss, damage, injury, decline in value, lost opportunity, liability,
exposure, claim, demand, settlement, judgment, award, fine, penalty, tax, fee,
charge, cost or expense of any nature (whether or not relating to a third party
claim) which is directly or indirectly suffered or incurred at any time by
Parent or any of Parent's affiliates or to which Parent or any of Parent's
affiliates otherwise becomes subject and that arises from any inaccuracy in or
breach of any representation, warranty, covenant or obligation of Affiliate
contained in this Agreement.

         7.       OTHER AGREEMENTS. Nothing in this Agreement shall limit any of
the rights or remedies of Parent under the Reorganization Agreement and nothing
in the Reorganization Agreement shall limit any of the rights or remedies of
Parent under this Agreement.

         8.       NOTICES. Any notice or other communication required or
permitted to be delivered to Affiliate or Parent under this Agreement shall be
in writing and shall be deemed properly delivered, given and received when
delivered (by hand, by registered mail, by courier or express delivery service
or by facsimile) to the address or facsimile telephone number set forth beneath
the name of such party below (or to such other address or facsimile telephone
number as such party shall have specified in a written notice given to the other
party hereto):

            IF TO PARENT:     Lumisys Incorporated
                              225 Humboldt Court
                              Sunnyvale, CA 94089
                              Attention:  Stephen J. Weiss

            WITH A COPY TO:   Cooley Godward LLP
                              Five Palo Alto Square
                              3000 El Camino Real
                              Palo Alto, CA  94306-2155
                              Attention:  Andrei M. Manoliu, Esq.
                              Facsimile No.: (415) 857-0663


                                      A-5
<PAGE>   81
            TO AFFILIATE AT:




            WITH A COPY TO:    Wilson Sonsini Goodrich & Rosati
                               650 Page Mill Road
                               Palo Alto, CA 94304
                               Attention: David J. Segre, Esq.
                               Facsimile No.: (415) 493-6811

         9.       SEVERABILITY. If any provision of this Agreement or any part
of any such provision is held under any circumstances to be invalid or
unenforceable in any jurisdiction, then (a) such provision or part thereof
shall, with respect to such circumstances and in such jurisdiction, be deemed
amended to conform to applicable laws so as to be valid and enforceable to the
fullest possible extent, (b) the invalidity or unenforceability of such
provision or part thereof under such circumstances and in such jurisdiction
shall not affect the validity or enforceability of such provision or part
thereof under any other circumstances or in any other jurisdiction, and (c) the
invalidity or unenforceability of such provision or part thereof shall not
affect the validity or enforceability of the remainder of such provision or the
validity or enforceability of any other provision of this Agreement. Each
provision of this Agreement is separable from every other provision of this
Agreement, and each part of each provision of this Agreement is separable from
every other part of such provision.

         10.      GOVERNING LAW. This Agreement shall be construed in accordance
with, and governed in all respects by, the laws of the State of California
(without giving effect to principles of conflicts of laws).

         11.      WAIVER. No failure on the part of Parent to exercise any
power, right, privilege or remedy under this Agreement, and no delay on the part
of Parent in exercising any power, right, privilege or remedy under this
Agreement, shall operate as a waiver of such power, right, privilege or remedy;
and no single or partial exercise of any such power, right, privilege or remedy
shall preclude any other or further exercise thereof or of any other power,
right, privilege or remedy. Parent shall not be deemed to have waived any claim
arising out of this Agreement, or any power, right, privilege or remedy under
this Agreement, unless the waiver of such claim, power, right, privilege or
remedy is expressly set forth in a written instrument duly executed and
delivered on behalf of Parent; and any such waiver shall not be applicable or
have any effect except in the specific instance in which it is given.

         12.      CAPTIONS. The captions contained in this Agreement are for
convenience of reference only, shall not be deemed to be a part of this
Agreement and shall not be referred to in connection with the construction or
interpretation of this Agreement.


                                      A-6
<PAGE>   82
         13.      FURTHER ASSURANCES. Affiliate shall execute and/or cause to be
delivered to Parent such instruments and other documents and shall take such
other actions as Parent may reasonably request to effectuate the intent and
purposes of this Agreement.

         14.      ENTIRE AGREEMENT. This Agreement and the Reorganization
Agreement set forth the entire understanding of Parent and Affiliate relating to
the subject matter hereof and thereof and supersede all other prior agreements
and understandings between Parent and Affiliate relating to the subject matter
hereof and thereof.

         15.      NON-EXCLUSIVITY. The rights and remedies of Parent hereunder
are not exclusive of or limited by any other rights or remedies which Parent may
have, whether at law, in equity, by contract or otherwise, all of which shall be
cumulative (and not alternative).

         16.      AMENDMENTS. This Agreement may not be amended, modified,
altered or supplemented other than by means of a written instrument duly
executed and delivered on behalf of Parent and Affiliate.

         17.      ASSIGNMENT. This Agreement and all obligations of Affiliate
hereunder are personal to Affiliate and may not be transferred or delegated by
Affiliate at any time. Parent may freely assign any or all of its rights under
this Agreement (including its indemnification rights under Section 6), in whole
or in part, to any other person or entity without obtaining the consent or
approval of Affiliate.

         18.      BINDING NATURE. Subject to Section 17, this Agreement will
inure to the benefit of Parent and its successors and assigns and will be
binding upon Affiliate and his representatives, executors, administrators,
estate, heirs, successors and assigns.

         19.      ATTORNEYS' FEES AND EXPENSES. If any legal action or other
legal proceeding relating to the enforcement of any provision of this Agreement
is brought against Affiliate, the prevailing party shall be entitled to recover
reasonable attorneys' fees, costs and disbursements (in addition to any other
relief to which the prevailing party may be entitled).

         20.      SURVIVAL. Each of the representations, warranties, covenants
and obligations contained in this Agreement shall survive the consummation of
the Merger.

      Affiliate has executed this Agreement on September __, 1997.



                                    Signature: _______________________________


                                      A-7
<PAGE>   83
                                    EXHIBIT D


                   FORM OF CONTINUITY OF INTEREST CERTIFICATE


      ______________________ ("Stockholder") is aware that an Agreement and Plan
of Merger and Reorganization dated as of September ___, 1997 (the
"Reorganization Agreement") and related Certificate of Merger (together, the
"Agreements") has been made and entered into by and among LUMISYS INCORPORATED,
a Delaware corporation ("Parent"), SAC ACQUISITION CORPORATION, a Delaware
corporation and a wholly owned subsidiary of Parent ("Merger Sub") and COMPURAD,
INC., a Delaware corporation (the "Company") providing for the merger of Merger
Sub with and into the Company (the "Merger"). The Reorganization Agreement
contemplates that, upon consummation of the Merger, (i) the Company's
stockholders will receive shares of common stock, par value $.001 per share, of
Parent ("Parent Common Stock") in exchange for their shares of common stock, par
value $.01 per share, of the Company ("Company Common Stock") and (ii) the
Company will become a wholly owned subsidiary of Parent. It is accordingly
contemplated that Stockholder will receive shares of Parent Common Stock in the
Merger.

         1.       Stockholder represents, warrants and certifies to Parent,
Merger Sub, the Company and the Company's Stockholders as follows:

                  (a)      Stockholder currently is the owner of ___________
shares of Company Common Stock (the "Shares"), and did not acquire any of the
Shares in contemplation of the Merger.

                  (b)      Stockholder has not engaged in a Sale (as defined
below) of any shares of Company Common Stock in contemplation of the Merger.

                  (c)      Stockholder has no plan or intention to engage in a
sale, exchange, transfer, distribution, redemption or reduction in any way of
Stockholder's risk of ownership (by short sale or otherwise), or other
disposition, directly or indirectly (such actions being collectively referred to
herein as a "Sale") of more than [fifty percent (50%)] of the shares of Parent
Common Stock to be received by Stockholder in the Merger. (For purposes of the
preceding sentence, shares of Company Common Stock (or the portion thereof) (i)
with respect to which Stockholder will receive consideration in the Merger other
than shares of Parent Common Stock (including cash to be received in lieu of
fractional shares of Parent Common Stock) and/or (ii) with respect to which a
Sale (A) occurred in contemplation of the Merger or (B) will occur prior to the
Merger, shall be considered shares of Company Common Stock exchanged for shares
of Parent Common Stock in the Merger and then disposed of pursuant to a plan).

                  (d)      Stockholder has no plan or intention to exercise
dissenters' rights in connection with the Merger.

                  (e)      Stockholder is not aware of, or participating in, any
plan or intention on the part of the stockholders of the Company to engage in a
Sale or Sales of more than fifty percent (50%) of the shares of Parent Common
Stock to be received in the Merger. (For purposes of the preceding sentence,
shares of Company Common Stock (or the portion thereof) (i) with respect to


                                      A-1
<PAGE>   84
which a stockholder of the Company receives consideration in the Merger other
than shares of Parent Common Stock (including, without limitation, cash received
pursuant to the exercise of dissenters' rights or in lieu of a fractional share
of Parent Common Stock) or (ii) with respect to which a Sale occurs prior to and
in contemplation of the Merger, shall be considered shares of outstanding
Company Common Stock exchanged for shares of Parent Common Stock in the Merger
and then disposed of pursuant to a plan).

                  (f)      Except to the extent written notification to the
contrary is received by Parent and the Company from Stockholder prior to the
consummation of the Merger, the representations, warranties and certifications
contained herein shall be accurate at all times from the date hereof through the
date on which the Merger is consummated.

                  (g)      Stockholder has consulted with such legal counsel and
financial advisors as he has deemed appropriate in connection with the execution
of this Certificate.

         2.       Stockholder understands that Parent, Merger Sub, the Company,
and the Company's stockholders, as well as legal counsel to Parent, Merger Sub
and the Company (in connection with rendering their opinions that the Merger
will be a "reorganization" within the meaning of Section 368(a) of the Internal
Revenue Code of 1986, as amended) will be relying on (a) the truth and accuracy
of the representations, warranties and certifications contained herein and (b)
the Stockholder's performance of the obligations set forth herein.

         Stockholder has executed this Certificate on _________ ___, 1997.



                                             __________________________________


                                      A-2
<PAGE>   85
                                    EXHIBIT E

                              LUMISYS INCORPORATED


___________________________

___________________________

___________________________

___________________________

RE:   EMPLOYMENT TERMS

Dear _________________:

LUMISYS INCORPORATED (the "Company") is pleased to offer you the position of
President, effective upon the closing of the acquisition of CompuRAD, Inc. by
the Company (the "Closing"), on the following terms, which terms shall be
effective only upon the Closing.

1.    REPORTING DUTIES

You will be responsible for all functional areas of the combined company,
including duties customarily associated with the position and other duties as
assigned by me. You will work at our facility located in Tucson, Arizona. Of
course, the Company may change your position, duties, and work location from
time to time as it deems necessary; provided that no such change shall occur
prior to September 1998.

2.    COMPENSATION

Your compensation will be $        per month, less payroll deductions and all
required withholdings. You will be paid bi-weekly (26 payment periods per year)
and you will be eligible for the following standard Company benefits: group
medical, dental and life insurance, vacation and participation in the Company's
401(k) and employee stock purchase plan. Details about these benefit plans are
available for your review. The Company may modify compensation and benefits from
time to time as it deems necessary.

3.    BONUS

You will also be eligible annually for a discretionary year-end bonus, in an
amount to be determined by the Company's Board of Directors (the "Board") in its
sole discretion. You will earn this bonus if all of the following criteria are
met: (i) the Company must meet or exceed its planned revenue and profit
objectives for the bonus year, as determined by the Board; (ii) your performance
must meet or exceed expectations for your position, as determined by the Board;
and (iii) you must remain an active employee through the end of the bonus year.
If your employment terminates for any reason before the end of the bonus year,
you will not receive this bonus; no prorated bonus can be earned, provided
however, that if you are terminated at any time in 1998 (unless you are
terminated for "cause" as defined in Paragraph 8 below), you will receive a
pro-rated bonus for the year 1998. In 


                                      A-1
<PAGE>   86
addition, if the Closing occurs after January 1, 1998, any bonus for the year
1998 will be calculated to cover the period from January 1, 1998 as if you had
been employed during that period. It is currently expected that you will not
receive a bonus from the Company for the services you performed during the year
1997.

4.    RELOCATION EXPENSES

You will receive relocation benefits for your move from Arizona to California
from the date of this Agreement to December 31, 1998, under the terms of the
Relocation Benefits Agreement, attached hereto as Exhibit B, up to a maximum
reimbursement amount to be mutually agreed upon by the parties.

5.    COMPANY POLICIES REGARDING CONFIDENTIAL INFORMATION AND OTHER MATTERS

As a Company employee, you will be expected to abide by Company rules and
regulations, acknowledge in writing that you have read the Company's Employee
Handbook, and sign and comply with the Proprietary Information and Inventions
Agreement, attached hereto as Exhibit A, which prohibits unauthorized use or
disclosure of Company proprietary information. As required by law, this offer is
subject to satisfactory proof of your right to work in the United States.

Normal working hours are from 8:00 a.m. to 5:00 p.m., Monday through Friday. As
an exempt salaried employee, you will be expected to work additional hours as
required by the nature of your work assignments. Except with the prior written
consent of the Board, you will not during the term of your employment with the
Company undertake or engage in any other employment, occupation or business
enterprise. You may engage in civic and not-for-profit activities so long as
such activities do not materially interfere with the performance of your duties
hereunder.

6.    RESTRICTIVE COVENANT

During the term of your employment, except as permitted by this paragraph, you
agree not to acquire, assume or participate in, directly or indirectly, any
position, investment or interest known by you to be adverse or antagonistic to
the Company, its business or prospects, financial or otherwise. During the term
of your employment by the Company, including any period of salary continuation
following your termination, as described below, you will not directly or
indirectly, whether as an officer, director, stockholder, partner, proprietor,
associate, representative, consultant, or in any capacity whatsoever engage in,
become financially interested in, be employed by or have any business connection
with any other person, corporation, firm, partnership or other entity whatsoever
which competes with the Company, throughout the world, in any line of business
engaged in (or planned to be engaged in) by the Company. Notwithstanding the
above, however, you may own, as a passive investor, securities of any competitor
corporation, so long as your and your family's aggregate holdings in any one
such corporation do not constitute more than 1% of the voting stock of such
corporation.

7.    NON-SOLICITATION
<PAGE>   87
While employed by the Company, and for one (1) year thereafter, you agree not to
interfere with the business of the Company by: (i) soliciting, attempting to
solicit, inducing, or otherwise causing any employee of the Company to terminate
his or her employment with the Company; or (ii) directly or indirectly
soliciting the business of any customer of the Company which at the time of
termination or one year immediately prior thereto was listed on the Company's
customer list.

8.    TERMINATION

You may terminate your employment with the Company at any time and for any
reason whatsoever simply by notifying the Company. Likewise, the Company may
terminate your employment at any time and for any reason whatsoever, with or
without cause or advance notice. This at-will employment relationship cannot be
changed except in a writing signed by a Company officer. Notwithstanding the
foregoing, in the event before the second anniversary of Closing the Company
terminates your employment without "cause" or you terminate your employment for
"good reason," the Company will continue, as severance, your base salary at its
then current rate for a period of twelve (12) months following such termination.
For the purposes of the foregoing, "cause" means misconduct, including: (i) the
current use of illegal drugs; (ii) indictment for any crime involving moral
turpitude, fraud or misrepresentation; (iii) commission of any act which would
constitute a felony and which would adversely impact the business or reputation
of the Company; (iv) fraud; (v) misappropriation or embezzlement of Company
funds or property; (vi) willful conduct which is materially injurious to the
reputation, business or business relationships of the Company; (viii) your
failure to perform your responsibilities and/or duties provided that you have
thirty days (from the date that the Company delivers a written notice to you
describing your failure to perform) to cure any failure to perform; or (ix) a
material violation of any of the provisions of this employment offer letter or
of the attached Proprietary Information and Inventions Agreement. For purposes
of the foregoing, "good reason" means: (i) material diminution in your duties or
salary (except in connection with a fairly administered across the board salary
reduction plan adopted by the Board) or (ii) relocation outside of the San
Francisco Bay Area (other than back to the Tucson area if the Company provides
relocation expenses for such relocation).

9.    ENTIRE AGREEMENT

This letter, including Exhibits A, B, and C, constitutes the complete, final and
exclusive embodiment of the entire agreement between you and the Company with
respect to the terms and conditions of your employment. This letter agreement is
entered into without reliance on any promise or representation, written or oral,
other than those expressly contained herein. It may not be modified except in a
writing signed by you and a duly authorized officer of the Company.

The employment terms in this letter supersede any other agreements or promises
made to you by anyone, whether oral or written. In addition, all employment
contracts, terms of employment, offer letters or similar agreements,
arrangements or understandings between you and CompuRAD, Inc. terminate as of
the Closing.

In consideration of the terms of the Closing and this offer letter, you hereby
agree to release and hold harmless CompuRAD, Inc., the Company and their
officers, directors and agents for any and all acts 
<PAGE>   88
or omissions relating to your employment with CompuRAD, Inc. prior to the
Closing and do so by executing the Release attached hereto as Exhibit C.

Please sign and date this letter, and return it to me, if you wish to accept
employment at the Company under the terms described above.

We look forward to your favorable reply and to a productive and enjoyable work
relationship.

Sincerely,


___________________________________
Stephen J. Weiss


ACCEPTED:



___________________________________
Phillip Berman



___________________________________
Date


Attachment:

Exhibit A:        Proprietary Information and Inventions Agreement
Exhibit B:        Relocation Benefits Agreement
Exhibit C:        Release
<PAGE>   89
                                    EXHIBIT A

                              LUMISYS INCORPORATED


                             PROPRIETARY INFORMATION
                            AND INVENTIONS AGREEMENT


         In consideration of my employment or continued employment by LUMISYS
INCORPORATED (the "Company"), and the compensation now and hereafter paid to me,
I hereby agree as follows:

         1.       RECOGNITION OF COMPANY'S RIGHTS; NONDISCLOSURE. At all times
during the term of my employment and thereafter, I will hold in strictest
confidence and will not disclose, use, lecture upon or publish any of the
Company's Proprietary Information (defined below), except as such disclosure,
use or publication may be required in connection with my work for the Company,
or unless an officer of the Company expressly authorizes such in writing. I
hereby assign to the Company any rights I may have or acquire in such
Proprietary Information and recognize that all Proprietary Information shall be
the sole property of the Company and its assigns and the Company and its assigns
shall be the sole owner of all trade secret rights, patent rights, copyrights,
mask work rights and all other rights throughout the world (collectively,
"Proprietary Rights") in connection therewith.

                  The term "Proprietary Information" shall mean trade secrets,
confidential knowledge, data or any other proprietary information of the
Company. By way of illustration but not limitation, "Proprietary Information"
includes (a) trade secrets, inventions, mask works, ideas, processes, formulas,
source and object codes, data, programs, other works of authorship, know-how,
improvements, discoveries, developments, designs and techniques (hereinafter
collectively referred to as "Inventions"); and (b) information regarding plans
for research, development, new products, marketing and selling, business plans,
budgets and unpublished financial statements, licenses, prices and costs,
suppliers and customers; and information regarding the skills and compensation
of other employees of the Company.

         2.       THIRD PARTY INFORMATION. I understand, in addition, that the
Company has received and in the future will receive from third parties
confidential or proprietary information ("Third Party Information") subject to a
duty on the Company's part to maintain the confidentiality of such information
and to use it only for certain limited purposes. During the term of my
employment and thereafter, I will hold Third Party Information in the strictest
confidence and will not disclose (to anyone other than Company personnel who
need to know such information in connection with their work for the Company) or
use, except in connection with my work for the Company, Third Party Information
unless expressly authorized by an officer of the Company in writing.
<PAGE>   90
         3.       ASSIGNMENT OF INVENTIONS.

                  3.1      ASSIGNMENT. I hereby assign to the Company all my
right, title and interest in and to any and all Inventions (and all Proprietary
Rights with respect thereto) whether or not patentable or registrable under
copyright or similar statutes, made or conceived or reduced to practice or
learned by me, either alone or jointly with others, during the period of my
employment with the Company. Inventions assigned to or as directed by the
Company by this paragraph 3 are hereinafter referred to as "Company Inventions."
I recognize that this Agreement does not require assignment of any invention
which qualifies fully for protection under Section 2870 of the California Labor
Code (hereinafter "Section 2870"), which provides as follows:

                           (i)      Any provision in an employment agreement
which provides that an employee shall assign, or offer to assign, any of his or
her rights in an invention to his or her employer shall not apply to an
invention that the employee developed entirely on his or her own time without
using the employer's equipment, supplies, facilities, or trade secret
information except for those inventions that either:

                                    (1)      Relate at the time of conception or
reduction to practice of the invention to the employer's business, or actual or
demonstrably anticipated research or development of the employer.

                                    (2)      Result from any work performed by
the employee for the employer.

                           (ii)     To the extent a provision in an employment
agreement purports to require an employee to assign an invention otherwise
excluded from being required to be assigned under subdivision (i), the provision
is against the public policy of this state and is unenforceable.

                  3.2      GOVERNMENT. I also assign to or as directed by the
Company all my right, title and interest in and to any and all Inventions, full
title to which is required to be in the United States by a contract between the
Company and the United States or any of its agencies.

                  3.3      WORKS FOR HIRE. I acknowledge that all original works
of authorship which are made by me (solely or jointly with others) within the
scope of my employment and which are protectable by copyright are "works made
for hire," as that term is defined in the United States Copyright Act (17
U.S.C., Section 101).

         4.       ENFORCEMENT OF PROPRIETARY RIGHTS. I will assist the Company
in every proper way to obtain and from time to time enforce United States and
foreign Proprietary Rights relating to Company Inventions in any and all
countries. To that end I will execute, verify and deliver such documents and
perform such other acts (including appearances as a witness) as the Company may
reasonably request for use in applying for, obtaining, perfecting, evidencing,
sustaining and enforcing such Proprietary Rights and the assignment thereof. In
addition, I will execute, verify and deliver assignments of such Proprietary
Rights to the Company or its designee. My obligation to assist the Company with
respect to Proprietary Rights relating to such Company Inventions in any and all
countries shall continue beyond the termination of my employment, but the
Company shall 
<PAGE>   91
compensate me at a reasonable rate after my termination for the time actually
spent by me at the Company's request on such assistance.

                  In the event the Company is unable for any reason, after
reasonable effort, to secure my signature on any document needed in connection
with the actions specified in the preceding paragraph, I hereby irrevocably
designate and appoint the Company and its duly authorized officers and agents as
my agent and attorney in fact, which appointment is coupled with an interest, to
act for and in my behalf to execute, verify and file any such documents and to
do all other lawfully permitted acts to further the purposes of the preceding
paragraph with the same legal force and effect as if executed by me. I hereby
waive and quitclaim to the Company any and all claims, of any nature whatsoever,
which I now or may hereafter have for infringement of any Proprietary Rights
assigned hereunder to the Company.

         5.       OBLIGATION TO THE COMPANY AFTER TERMINATION. I agree to keep
and maintain adequate and current records (in the form of notes, sketches,
drawings and in any other form that may be required by the Company) of all
Proprietary Information developed by me and all Inventions made by me during the
period of my employment at the Company, which records shall be available to and
remain the sole property of the Company at all times.

         6.       PRIOR INVENTIONS. Inventions, if any, patented or unpatented,
which I made prior to the commencement of my employment with the Company are
excluded from the scope of this Agreement. To preclude any possible uncertainty,
I have set forth on Attachment 1 attached hereto a complete list of all
Inventions that I have, alone or jointly with others, conceived, developed or
reduced to practice or caused to be conceived, developed or reduced to practice
prior to the commencement of my employment with the Company, that I consider to
be my property or the property of third parties and that I wish to have excluded
from the scope of this Agreement. If disclosure of any such Invention on
Attachment 1 would cause me to violate any prior confidentiality agreement, I
understand that I am not to list such Inventions in Attachment 1 but am to
inform the Company that all such Inventions have not been listed for that
reason.

         7.       NO IMPROPER USE OF MATERIALS. During my employment by the
Company I will not improperly use or disclose any confidential information or
trade secrets, if any, of any former employer or any other person to whom I have
an obligation of confidentiality, and I will not bring onto the premises of the
Company any unpublished documents or any property belonging to any former
employer or any other person to whom I have an obligation of confidentiality
unless consented to in writing by that former employer or person. I will use in
the performance of my duties only information which is generally known and used
by persons with training and experience comparable to my own, which is common
knowledge in the industry or otherwise legally in the public domain, or which is
otherwise provided or developed by the Company.

         8.       NO CONFLICTING OBLIGATION. I represent that my performance of
all the terms of this Agreement and as an employee of the Company does not and
will not breach any agreement to keep in confidence information acquired by me
in confidence or in trust prior to my employment by the Company. I have not
entered into, and I agree I will not enter into, any agreement either written or
oral in conflict herewith.
<PAGE>   92
         9.       RETURN OF COMPANY DOCUMENTS. When I leave the employ of the
Company, I will deliver to the Company any and all drawings, notes, memoranda,
specifications, devices, formulas, and documents, together with all copies
thereof, and any other material containing or disclosing any Company Inventions,
Third Party Information or Proprietary Information of the Company. I further
agree that any property situated on the Company's premises and owned by the
Company, including disks and other storage media, filing cabinets or other work
areas, is subject to inspection by Company personnel at any time with or without
notice. Prior to leaving, I will cooperate with the Company in completing and
signing the Company's termination statement for technical and management
personnel.

         10.      LEGAL AND EQUITABLE REMEDIES. Because my services are personal
and unique and because I may have access to and become acquainted with the
Proprietary Information of the Company, the Company shall have the right to
enforce this Agreement and any of its provisions by injunction, specific
performance or other equitable relief, without bond and without prejudice to any
other rights and remedies that the Company may have for a breach of this
Agreement.

         11.      NOTICES. Any notices required or permitted hereunder shall be
given to the appropriate party at the address specified below or at such other
address as the party shall specify in writing. Such notice shall be deemed given
upon personal delivery to the appropriate address or if sent by certified or
registered mail, three days after the date of mailing.

         12.      GENERAL PROVISIONS.

                  12.1     GOVERNING LAW. This Agreement will be governed by and
construed according to the laws of the State of California.

                  12.2     ENTIRE AGREEMENT. This Agreement is the final,
complete and exclusive agreement of the parties with respect to the subject
matter hereof and supersedes and merges all prior discussions between us. No
modification of or amendment to this Agreement, nor any waiver of any rights
under this Agreement, will be effective unless in writing and signed by the
party to be charged. Any subsequent change or changes in my duties, salary or
compensation will not affect the validity or scope of this Agreement. As used in
this Agreement, the period of my employment includes any time during which I may
be retained by the Company as a consultant.

                  12.3     SEVERABILITY. If one or more of the provisions in
this Agreement are deemed unenforceable by law, then such provision will be
deemed stricken from this Agreement and the remaining provisions will continue
in full force and effect.

                  12.4     SUCCESSORS AND ASSIGNS. This Agreement will be
binding upon my heirs, executors, administrators and other legal representatives
and will be for the benefit of the Company, its successors, and its assigns.

                  12.5     SURVIVAL. The provisions of this Agreement shall
survive the termination of my employment and the assignment of this Agreement by
the Company to any successor in interest or other assignee.
<PAGE>   93
                  12.6     EMPLOYMENT. I agree and understand that nothing in
this Agreement shall confer any right with respect to continuation of employment
by the Company, nor shall it interfere in any way with my right or the Company's
right to terminate my employment at any time, with or without cause.

                  12.7     WAIVER. No waiver by the Company of any breach of
this Agreement shall be a waiver of any preceding or succeeding breach. No
waiver by the Company of any right under this Agreement shall be construed as a
waiver of any other right. The Company shall not be required to give notice to
enforce strict adherence to all terms of this Agreement.

         This Agreement shall be effective as of the first day of my employment
with the Company, namely: ___________ __, 19__.

I HAVE READ THIS AGREEMENT CAREFULLY AND UNDERSTAND ITS TERMS.  I HAVE
COMPLETELY FILLED OUT ATTACHMENT 1 TO THIS AGREEMENT.



Dated:______________________              ____________________________________
                                          Signature


                                          ____________________________________
                                          (Printed Name)


                                          ____________________________________
                                          (Address)

                                          ____________________________________

                                          ____________________________________

ACCEPTED AND AGREED TO:

LUMISYS INCORPORATED


By: ___________________________

Title: ________________________
<PAGE>   94
                                  ATTACHMENT 1

                                   MEMORANDUM


TO:         LUMISYS INCORPORATED

FROM: _______________________________

DATE: _______________________________

RE:         Inventions


         1.       The following is a complete list of all inventions or
improvements relevant to the subject matter of my employment by LUMISYS
INCORPORATED (the "Company") that have been made or conceived or first reduced
to practice by me alone or jointly with others prior to my engagement by the
Company:

         [  ]  No inventions or improvements.

         [  ]  See below:


_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

         [  ] Due to confidentiality agreements with prior employer, I cannot
              disclose certain inventions that would otherwise be included on 
              the above-described list.

         [  ] Additional sheets attached.

         2.       I propose to bring to my employment the following devices,
materials and documents of a former employer or other person to whom I have an
obligation of confidentiality that are not generally available to the public,
which materials and documents may be used in my employment pursuant to the
express written authorization of my former employer or such other person (a copy
of which is attached hereto):
<PAGE>   95

      [  ]  No material.

      [  ]  See below:

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

      [  ]  Additional sheets attached.


Date: ___________________               _______________________________________
                                                Employee
<PAGE>   96
                                    EXHIBIT B

                          RELOCATION BENEFITS AGREEMENT


Effective on ___________________ 1997 (the "Effective Date"), I,_______________
               (Start Date)                                        (Name)
hereby agree to the following terms and conditions with respect to all
relocation costs paid to me or on my behalf by Lumisys Incorporated (the
"Company"), whether by reimbursement to me or by direct payment to third
parties, in connection with my relocation from Arizona to my new home in
___________________, California (the "Relocation Costs"):

1.    If I remain a President of the Company for 12 months from the Effective
      Date, I shall have no obligation to repay any of the Relocation Costs.

2.    If my employment terminates for "cause" or without "good reason" within
      one year from the effective date, I agree to repay to the Company a
      portion of the Relocation Costs, including tax assistance payments or
      other amounts paid to federal or state tax agencies as withholding or
      other credit against taxes, to be calculated as follows:

            For each full month of full-time employment, the Company will
            forgive 1/12 of my Relocation Costs. The remaining unforgiven
            Relocation Costs are due and payable to the Company on demand.

3.    I understand that all reimbursements and allowances paid to me or on my
      behalf as Relocation Costs, including tax assistance payments and
      amounts withheld as payroll deductions, in connection with my
      relocation must be included as a part of my gross income and therefore
      may be subject to tax.  If I am required under paragraph 2 of this
      agreement to repay Relocation Costs to the Company, I will repay the
      entire amount determined under paragraph 2, including tax assistance
      payments and amounts withheld as payroll deductions.

      I also understand that my ability to deduct a portion of my Relocation
      Costs is subject to specific limits and other IRS requirements, including
      the requirement that I must be able to substantiate my expenses by keeping
      copies of my receipts. I UNDERSTAND THAT IF I AM AUDITED BY THE IRS OR ANY
      STATE TAX AGENCY, I ALONE AND NOT THE COMPANY WILL BE LIABLE FOR ANY
      TAXES, INTEREST OR PENALTIES DUE IF ANY CLAIMED DEDUCTIONS ARE DENIED FOR
      ANY REASON, INCLUDING IF I FAIL TO KEEP COPIES OF RECEIPTS. I understand
      that I cannot rely on the Company or any officer or employee of the
      Company for advice regarding the proper tax treatment of my Relocation
      Costs, and that I am responsible for obtaining independent advice from my
      own personal tax advisor.

4.    I understand that nothing in this agreement assures me of a continuing
      position with the Company, or in any way changes the Company's right to
      end the employment relationship as it deems necessary.
<PAGE>   97
5.    If I am obligated under this agreement to repay the Company for Relocation
      Costs, I hereby authorize the Company to deduct the entire amount due from
      my final paycheck, including from any vacation pay due.

6.    Before submitting expenses for reimbursement as Relocation Costs, I will
      inform the Company whether my spouse is eligible for relocation benefits
      from another employer, and if so, the terms of those benefits. If my
      spouse is eligible for any of the same relocation benefits which the
      Company has offered me, I will only receive one-half of any such benefits
      from the Company.



_______________________________                   _____________________________
      Employee signature                                    Date
<PAGE>   98
                                    EXHIBIT C

                                     RELEASE


         Except as otherwise set forth in this Release, I hereby release, acquit
and forever discharge CompuRAD, Inc. (the "Company"), its parents and
subsidiaries, and their officers, directors, agents, servants, employees,
attorneys, shareholders, successors, assigns and affiliates, of and from any and
all claims, liabilities, demands, causes of action, costs, expenses, attorneys
fees, damages, indemnities and obligations of every kind and nature, in law,
equity, or otherwise, known and unknown, suspected and unsuspected, disclosed
and undisclosed, arising out of or in any way related to agreements, events,
acts or conduct at any time prior to and including the execution date of this
Release, including but not limited to: all such claims and demands directly or
indirectly arising out of or in any way connected with my employment with the
Company or the termination of that employment; claims or demands related to
salary, bonuses, commissions, stock, stock options, or any other ownership
interests in the Company, vacation pay, fringe benefits, expense reimbursements,
severance pay, or any other form of compensation; claims pursuant to any
federal, state or local law, statute, or cause of action including, but not
limited to, the federal Civil Rights Act of 1964, as amended; the federal
Americans with Disabilities Act of 1990; the federal Age Discrimination in
Employment Act of 1967, as amended ("ADEA"); the California Fair Employment and
Housing Act, as amended; the Arizona Civil Rights Act, as amended; tort law;
contract law; wrongful discharge; discrimination; harassment; fraud; defamation;
emotional distress; and breach of the implied covenant of good faith and fair
dealing.

         I acknowledge that I am knowingly and voluntarily waiving and releasing
any rights I may have under the ADEA, as amended. I also acknowledge that the
consideration given for the waiver and release in the preceding paragraph hereof
is in addition to anything of value to which I was already entitled. I further
acknowledge that I have been advised by this writing, as required by the ADEA,
that: (a) my waiver and release do not apply to any rights or claims that may
arise after the execution date of this Release; (b) I have been advised hereby
that I have the right to consult with an attorney prior to executing this
Release; (c) I have twenty-one (21) days to consider this Release (although I
may choose to voluntarily execute this Release earlier); (d) I have seven (7)
days following the execution of this Release by the parties to revoke the
Release; and (e) this Release shall not be effective until the date upon which
the revocation period has expired, which shall be the eighth day after this
Release is executed by me, provided that the Company has also executed this
Release by that date ("Effective Date").

         In giving this release, which includes claims which may be unknown to
me at present, I acknowledge that I have read and understand Section 1542 of the
California Civil Code which reads as follows: "A GENERAL RELEASE DOES NOT EXTEND
TO CLAIMS WHICH THE CREDITOR DOES NOT KNOW OR 
<PAGE>   99
SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE RELEASE, WHICH IF
KNOWN BY HIM MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE DEBTOR." I
hereby expressly waive and relinquish all rights and benefits under that section
and any law of any jurisdiction of similar effect with respect to my release of
any claims I may have against the Company.


                                       By: ____________________________________


                                       Date: __________________________________
<PAGE>   100
                                    EXHIBIT F

                INDIVIDUALS TO EXECUTE EMPLOYMENT OFFER LETTERS


1.    Phillip Berman, M.D.

2.    Cary Cole

3.    Henky Wibowo
<PAGE>   101
                                    EXHIBIT G

                                VOTING AGREEMENT


         THIS VOTING AGREEMENT is entered into as of September 28, 1997 by and
between LUMISYS INCORPORATED, a Delaware corporation ("Parent"), and
_____________________ ("Stockholder").

                                    RECITALS

         A.       Parent, SAC Acquisition Corporation, a Delaware corporation
and a wholly owned subsidiary of Parent ("Merger Sub"), and CompuRAD, Inc., a
Delaware corporation (the "Company"), are entering into an Agreement and Plan of
Merger and Reorganization of even date herewith (as amended from time to time,
the "Reorganization Agreement"; capitalized terms used but not otherwise defined
in this Voting Agreement have the meanings assigned to such terms in the
Reorganization Agreement), which provides (subject to the conditions set forth
therein) for the merger of Merger Sub with and into the Company (the "Merger").

         B.       As of the date hereof, Stockholder owns the number of shares
of Company Common Stock set forth below Stockholder's name on the signature page
hereto (all such shares, together with any shares of Company Common Stock or
other shares of capital stock of the Company that may hereafter be acquired by
Stockholder, being referred to herein as the "Subject Shares").

         C.       As a condition to the willingness of Parent and Merger Sub to
enter into the Reorganization Agreement, Parent and Merger Sub have required
that Stockholder agree, and in order to induce Parent and Merger Sub to enter
into the Reorganization Agreement Stockholder has agreed, to enter into this
Voting Agreement.


                                    AGREEMENT


         The parties to this Voting Agreement, intending to be legally bound,
agree as follows:

SECTION 1.           TRANSFER OF SUBJECT SHARES

         1.1      TRANSFER OF VOTING RIGHTS. Stockholder covenants and agrees
that, prior to the earlier to occur of: (i) the Effective Time, or (ii) the
valid termination of the Reorganization agreement (the "Expiration Date"), and
except as otherwise contemplated hereby, Stockholder will 
<PAGE>   102
not deposit any of the Subject Shares into a voting trust or grant a proxy or
enter into a voting agreement or similar agreement with respect to any of the
Subject Shares.

         1.2      OBLIGATIONS OF TRANSFEREES. Each transferee or any subsequent
transferee of the Subject Shares or any interest in such Subject Shares, shall
hold such Subject Shares or interest in the Subject Shares subject to all the
provisions of this Voting Agreement. Each transferee shall sign a counterpart of
this Agreement, agreeing to be bound by the terms and conditions hereof, prior
to receipt of any Subject Shares.

SECTION 2.            VOTING OF SUBJECT SHARES

         2.1      PRE-TERMINATION VOTING AGREEMENT. Without in any way limiting
the Stockholder's right to vote the Subject Shares in his sole discretion on any
other matters that may be submitted to a stockholder vote, consent or other
approval (including by written consent), at any meeting of the stockholders of
the Company called to vote upon the Merger and the Reorganization Agreement or
at any adjournment thereof or in any other circumstances upon which a vote,
consent or other approval (including by written consent) with respect to the
Merger and the Reorganization Agreement is sought, the Stockholder hereby agrees
that, prior to the Expiration Date, at any meeting of the stockholders of the
Company, however called, and in any written action by consent of stockholders of
the Company, Stockholder shall vote the Subject Shares in favor of: (i) the
Merger, (ii) the execution and delivery by the Company of the Reorganization
Agreement, (iii) the adoption and approval of the terms thereof and (iv) in
favor of each of the other actions contemplated by the Reorganization Agreement
and any action required in furtherance hereof or thereof.

Prior to the Expiration Date, Stockholder shall not enter into any agreement or
understanding with any Person to vote or give instructions with respect to the
Subject Shares regarding the Merger and the Reorganization Agreement, other than
any agreement or understanding to vote or give instructions in favor of the
Merger and the Reorganization Agreement.

         2.2      PROXY; FURTHER ASSURANCES. Contemporaneously with the
execution of this Voting Agreement, Stockholder shall deliver to Parent a proxy
in the form attached hereto as Exhibit A, which shall be irrevocable to the
fullest extent permitted by law, with respect to the Subject Shares (the
"Proxy").

SECTION 3.            WAIVER OF APPRAISAL RIGHTS.

         Stockholder hereby waives any rights of appraisal and any dissenters'
rights that Stockholder may have in connection with the Merger.

SECTION 4.            NO SOLICITATION
<PAGE>   103
         Stockholder covenants and agrees that, during the period commencing on
the date of this Voting Agreement and ending on the Expiration Date, Stockholder
shall not, directly or indirectly, and shall not authorize or permit any
Representative of Stockholder, directly or indirectly, to: (i) solicit,
initiate, encourage or induce the making, submission or announcement of any
Acquisition Proposal or take any action that could reasonably be expected to
lead to an Acquisition Proposal; (ii) furnish any information regarding the
Company to any Person in connection with or in response to an Acquisition
Proposal or potential Acquisition Proposal; (iii) engage in discussions with any
Person with respect to any Acquisition Proposal; (iv) approve, endorse or
recommend any Acquisition Proposal; or (v) enter into any letter of intent or
other similar document or any Contract contemplating or otherwise relating to
any Acquisition Proposal. Stockholder shall immediately cease any existing
discussions with any Person that relate to any Acquisition Proposal.
Notwithstanding the foregoing, Stockholder shall not be prevented from taking
any action that is not prohibited under Section 4.4 of the Reorganization
Agreement, whether he is acting in his capacity as a Stockholder of the Company
or as an officer or director of the Company; provided that nothing herein shall
be deemed to excuse Stockholder's performance of his voting obligations
hereunder.

SECTION 5.            REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER

         Stockholder hereby represents and warrants to Parent as follows:

         5.1      AUTHORIZATION, ETC. Stockholder has all requisite power and
capacity to execute and deliver this Voting Agreement and to perform his
obligations hereunder. This Voting Agreement has been duly executed and
delivered by Stockholder and constitutes a legal, valid and binding obligation
of Stockholder, enforceable against Stockholder in accordance with its terms,
subject to (i) laws of general application relating to bankruptcy, insolvency
and the relief of debtors, and (ii) rules of law governing specific performance,
injunctive relief and other equitable remedies.

         5.2      NO CONFLICTS, REQUIRED FILINGS AND CONSENTS.

                  (a)      The execution and delivery of this Voting Agreement
by Stockholder do not, and the performance of this Voting Agreement by
Stockholder will not: (i) conflict with or violate any Legal Requirement, order,
decree or judgment applicable to Stockholder or by which he or any of his
properties is bound or affected; or (ii) result in any breach of or constitute a
default (with notice or lapse of time, or both) under, or give to others any
rights of termination, amendment, acceleration or cancellation of, or result in
the creation of an Encumbrance on the Subject Shares pursuant to, any Contract
to which Stockholder is a party or by which Stockholder or any of his properties
is bound or affected.

                  (b)      The execution and delivery of this Voting Agreement
by Stockholder do not, and the performance of this Voting Agreement by
Stockholder will not, require any Consent of any Person.
<PAGE>   104
         5.3      TITLE TO SUBJECT SHARES. Stockholder owns of record and
beneficially the Subject Shares set forth under Stockholder's name on the
signature page hereof and does not directly or indirectly own, either
beneficially or of record, any shares of capital stock of the Company, or rights
to acquire any shares of capital stock of the Company, other than the Subject
Shares set forth below Stockholder's name on the signature page hereof.

         5.4      ACCURACY OF REPRESENTATIONS. The representations and
warranties contained in this Voting Agreement are accurate in all respects as of
the date of this Voting Agreement, will be accurate in all respects at all times
through the Expiration Date and will be accurate in all respects as of the date
of the consummation of the Merger as if made on that date.

SECTION 6.         COVENANTS OF STOCKHOLDER

         6.1      FURTHER ASSURANCES. From time to time and without additional
consideration, Stockholder will execute and deliver, or cause to be executed and
delivered, such additional or further transfers, assignments, endorsements,
proxies, consents and other instruments as Parent may reasonably request for the
purpose of effectively carrying out and furthering the intent of this Voting
Agreement.

         6.2      LEGEND. Promptly after the date of this Voting Agreement, and
in any event, no later than two business days following the date of this Voting
Agreement, Stockholder shall instruct the Company to cause each certificate of
Stockholder evidencing the Subject Shares to bear a legend in the following
form:

         THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD, EXCHANGED
         OR OTHERWISE TRANSFERRED OR DISPOSED OF EXCEPT IN COMPLIANCE WITH THE
         TERMS AND CONDITIONS OF THE VOTING AGREEMENT DATED AS OF SEPTEMBER 28,
         1997, AS IT MAY BE AMENDED, BETWEEN THE ISSUER AND THE REGISTERED
         HOLDER OF THIS CERTIFICATE, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
         EXECUTIVE OFFICES OF THE ISSUER.

SECTION 7.          MISCELLANEOUS

         7.1      SURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS. This
Voting Agreement shall terminate, and the provisions hereof shall be of no
further force or effect upon the Expiration Date.

         7.2      INDEMNIFICATION. Without in any way limiting any of the rights
or remedies otherwise available to Parent, Stockholder shall hold harmless and
indemnify Parent from and against, and shall compensate and reimburse Parent
for, any Damages (regardless of whether or not such Damages relate to a
third-party claim) which are directly or indirectly suffered or incurred at 
<PAGE>   105
any time by Parent, or to which Parent otherwise becomes subject, and that arise
from or are directly or indirectly connected with any breach of any
representation, warranty, covenant or obligation of Stockholder contained
herein.

         7.3      EXPENSES. All costs and expenses incurred in connection with
the transactions contemplated by this Voting Agreement shall be paid by the
party incurring such costs and expenses.

         7.4      NOTICES. Any notice or other communication required or
permitted to be delivered to either party under this Voting Agreement shall be
in writing and shall be deemed properly delivered, given and received when
delivered (by hand, by registered mail, by courier or express delivery service
or by facsimile) to the address or facsimile telephone number set forth beneath
the name of such party below (or to such other address or facsimile telephone
number as such party shall have specified in a written notice given to the other
party hereto):

            if to Stockholder:

                  at the address set forth below Stockholder's signature on
                  the signature page hereto;


            with a copy to:

                  Wilson Sonsini Goodrich & Rosati, Professional Corporation
                  650 Page Mill Road
                  Palo Alto, CA  94306
                  Attention: David J. Segre


            if to Parent:

                  Lumisys Incorporated
                  225 Humboldt Court
                  Sunnyvale, CA 94086
                  Attention: Stephen J. Weiss


            with a copy to:

                  Cooley Godward LLP
                  Five Palo Alto Square
                  3000 El Camino Real
                  Palo Alto, CA  94306
<PAGE>   106
                  Attention:  Andrei M. Manoliu


         7.5      SEVERABILITY. Any term or provision of this Voting Agreement
which is invalid or unenforceable in any jurisdiction shall, as to that
jurisdiction, be ineffective to the extent of such invalidity or
unenforceability without rendering invalid or unenforceable the remaining terms
and provisions of this Voting Agreement or affecting the validity or
enforceability of any of the terms or provisions of this Voting Agreement in any
other jurisdiction. If any provision of this Voting Agreement is so broad as to
be unenforceable, the provision shall be interpreted to be only so broad as is
enforceable.

         7.6      ENTIRE AGREEMENT. This Voting Agreement and any documents
delivered by the parties in connection herewith constitute the entire agreement
between the parties with respect to the subject matter hereof and thereof and
supersede all prior agreements and understandings between the parties with
respect thereto. No addition to or modification of any provision of this Voting
Agreement shall be binding upon either party hereto unless made in writing and
signed by both parties hereto. The parties hereto waive trial by jury in any
action at law or suit in equity based upon, or arising out of, this Voting
Agreement or the subject matter hereof.

         7.7      ASSIGNMENT; BINDING EFFECT. Except as provided herein, neither
this Voting Agreement nor any of the rights, interests or obligations hereunder
shall be assigned by either of the parties hereto (whether by operation of law
or otherwise) without the prior written consent of the other party, except that
Parent may assign all or any of its rights hereunder to any affiliate of Parent.
Subject to the preceding sentence, this Voting Agreement shall be binding upon
and shall inure to the benefit of (i) Stockholder and his heirs, successors and
assigns and (ii) Parent and its successors and assigns. Notwithstanding anything
contained in this Voting Agreement to the contrary, nothing in this Voting
Agreement, expressed or implied, is intended to confer on any Person other than
the parties hereto or their respective heirs, successors and assigns any rights,
remedies, obligations or liabilities under or by reason of this Voting
Agreement.

         7.8      SPECIFIC PERFORMANCE. The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Voting Agreement was not performed in accordance with its specific terms or was
otherwise breached. It is accordingly agreed that Parent shall be entitled to an
injunction or injunctions to prevent breaches of this Voting Agreement and to
enforce specifically the terms and provisions hereof in any Delaware court or
other court of proper jurisdiction, this being in addition to any other remedy
to which Parent is entitled at law or in equity.

         7.9      OTHER AGREEMENTS. Nothing in this Voting Agreement shall limit
any of the rights or remedies of Parent or any of the obligations of Stockholder
under any Affiliate Agreement between Parent and Stockholder or any other
agreement.
<PAGE>   107
         7.10     GOVERNING LAW. This Voting Agreement shall be governed in all
respects by the laws of the State of Delaware, as applied to contracts entered
into and to be performed entirely within the State of Delaware.

         7.11     COUNTERPARTS. This Voting Agreement may be executed by the
parties hereto in separate counterparts, each of which when so executed and
delivered shall be an original, but all such counterparts shall together
constitute one and the same instrument.

         7.12     CONSTRUCTION.

                  (a)      Headings of the Sections of this Voting Agreement are
for the convenience of the parties only, and shall be given no substantive or
interpretive effect whatsoever.

                  (b)      For purposes of this Voting Agreement, whenever the
context requires: the singular number shall include the plural, and vice versa;
the masculine gender shall include the feminine and neuter genders; the feminine
gender shall include the masculine and neuter genders; and the neuter gender
shall include masculine and feminine genders.

                  (c)      The parties hereto agree that any rule of
construction to the effect that ambiguities are to be resolved against the
drafting party shall not be applied in the construction or interpretation of
this Voting Agreement.

                  (d)      As used in this Voting Agreement, the words "include"
and "including," and variations thereof, shall not be deemed to be terms of
limitation, but rather shall be deemed to be followed by the words "without
limitation."

                  (e)      Except as otherwise indicated, all references in this
Voting Agreement to "Sections" and "Exhibits" are intended to refer to Sections
of this Voting Agreement and Exhibits to this Voting Agreement.

                [remainder of this page intentionally left blank]
<PAGE>   108
         IN WITNESS WHEREOF, Parent and Stockholder have caused this Voting
Agreement to be executed as of the date first written above.


                                          LUMISYS INCORPORATED


                                          By: _________________________________
                                          Name: _______________________________
                                          Title:_______________________________


                                          STOCKHOLDER


                                          _____________________________________
                                          Name: _______________________________

                                                Address:_______________________
                                                        _______________________
                                                Facsimile:_____________________

                                                Number of Shares of Company
                                                Common Stock owned of record as 
                                                of the date of this Voting 
                                                Agreement:
                                                _______________________________
<PAGE>   109
                                    EXHIBIT A

                                IRREVOCABLE PROXY


         The undersigned stockholder of CompuRAD, Inc., a Delaware corporation
(the "Company"), hereby irrevocably (to the fullest extent permitted by law)
appoints and constitutes ___________________, _________________ and Lumisys,
Incorporated, a Delaware corporation ("Parent"), and each of them, the attorneys
and proxies of the undersigned with full power of substitution and
resubstitution, to the full extent of the undersigned's rights with respect to
(i) the shares of capital stock of the Company owned by the undersigned as of
the date of this proxy, which shares are specified on the final page of this
proxy and (ii) any and all other shares of capital stock of the Company which
the undersigned may acquire after the date hereof. (The shares of the capital
stock of the Company referred to in clauses (i) and (ii) of the immediately
preceding sentence are collectively referred to as the "Shares.") Upon the
execution hereof, all prior proxies given by the undersigned with respect to any
of the Shares are hereby revoked, and no subsequent proxies will be given with
respect to any of the Shares.

         This proxy is irrevocable and is coupled with an interest. This proxy
is granted in connection with the Voting Agreement of even date herewith between
Parent and the undersigned (the "Voting Agreement") and in consideration of
Parent entering into the Agreement and Plan of Merger and Reorganization of even
date herewith among Parent, SAC Acquisition Corporation, a Delaware corporation
and wholly owned subsidiary of Parent, and the Company (the "Reorganization
Agreement"). Capitalized terms used but not otherwise defined in this proxy have
the meanings assigned to such terms in the Reorganization Agreement.

         The attorneys and proxies named above will be empowered, and may
exercise this proxy, to vote the Shares at any time at any meeting of the
stockholders of the Company, however called, or in any written action by consent
of stockholders of the Company, until the earlier to occur of the valid
termination of the Reorganization Agreement or the Effective Time, as follows:
(i) in favor of the Merger, (ii) in favor of the execution and delivery by the
Company of the Reorganization Agreement and the adoption and approval of the
terms thereof and (iii) in favor of each of the other actions contemplated by
the Reorganization Agreement and any action required in furtherance hereof or
thereof.
<PAGE>   110
         This proxy shall be binding upon the heirs, successors and assigns of
the undersigned (including any transferee of any of the Shares).


Dated:  September 28, 1997


                                          _____________________________________
                                          Name: _______________________________


                                          Number of Shares of Company
                                    Common Stock:______________________________
<PAGE>   111
                                    EXHIBIT H

                   INDIVIDUALS TO EXECUTE THE VOTING AGREEMENT


1.    Phillip Berman, M.D.

2.    Cary Cole

3.    Henky Wibowo

4.    Kevin Donovan

<PAGE>   1
                                                                   Exhibit 99.1


LUMISYS TO ACQUIRE COMPURAD

TRANSACTION TO CREATE A LEADING SUPPLIER OF MEDICAL IMAGE MANAGEMENT COMPONENTS


SUNNYVALE, CALIFORNIA (SEPTEMBER 29, 1997) -- Lumisys, Inc. (NASDAQ:LUMI) and
CompuRAD, Inc. (NASDAQ:COMD) today announced that they have entered into a
definitive agreement for Lumisys to acquire CompuRAD, a leading provider of
Teleradiology and PACS software in a stock for stock merger. The combined
company will focus on offering both hardware and software components to Medical
Image Management system suppliers, OEMs and VARs.

This acquisition is expected to qualify as a tax free reorganization, and is
expected to be accounted for as a pooling of interests. The consummation of the
acquisition is subject to certain conditions, including stockholder approval
for both companies. The transaction is anticipated to close during the first
quarter of 1998. Under the terms of the agreement, CompuRAD stockholders will
receive .928 shares of Lumisys common stock for each share of common stock of
CompuRAD. Dr. Phillip Berman, Chairman of the Board, President and Chief
Executive Officer of CompuRAD, and David Lapan, MD, CompuRAD Board of Directors
member, will join the Lumisys Board of Directors. Dr. Phillip Berman will serve
as President and Stephen Weiss, Chief Executive Officer of Lumisys, will serve
as the Chief Executive Officer of the combined company.

"In bringing together these two companies, we will be able to offer more
products to our customers and increase long-term opportunities for employees,"
said Stephen Weiss. Weiss added, "By increasing the software capabilities of
our core products, we also will be able to offer our customers a new generation
of 'intelligent' medical imaging appliances."

"We believe the combined companies will be able to deliver customers a unique
combination of hardware, software, services and, ultimately, appliances" said
Dr. Berman. Dr. Berman added "this combination will also allow us to leverage
the growing opportunities in the closely-related nuclear medicine, cardiology
and clinical information market segments."

Lumisys designs, manufactures and markets a family of precision digitizers that
convert medical images on film or video into digital format. The Company's
digitizers process images from all commercially available medical imaging
modalities, including x-ray, CT, MRI, ultrasound and nuclear medicine. Lumisys'
video digitization and compression products also have applications in
scientific and industrial inspection, broadcast video and multimedia imaging.
Additional information on Lumisys is available at www.lumisys.com.


1 of 2
<PAGE>   2
CompuRAD is a leading provider of Teleradiology and PACS software products
designed to capture, distribute, manage, store and view radiology images to
enable faster patient diagnosis and treatment. CompuRAD also offers an
innovative Clinical Data Repository and Access product called ClinicalWare
which combines Internet/Intranet and Object technologies. Additional
information on CompuRAD is available at www.compurad.com.

This press release contains forward looking statements that involve risks and
uncertainties, including those relating to the possible inability to complete
the acquisition as scheduled, or at all. Assuming completion of the
acquisition, such risks and uncertainties include risks that integration of
operations, technologies and products of the combining companies might not
occur as anticipated; that management's attention might be diverted from day to
day business activities; and that greater than normal employee turnover might
occur. In addition, there are normal risks and uncertainties associated with
Lumisys' and CompuRAD's business, including the timely development, acceptance
and pricing of new products and the impact of competitive conditions as well as
the other risks detailed from time to time in the SEC reports of Lumisys and
CompuRAD, including the report on Form 10-Q for the quarter ended June 30, 1997
for Lumisys and the report on Form 10-Q for the quarter ended June 30, 1997 for
CompuRAD.

2 of 2

<PAGE>   1
                                                                    EXHIBIT 99.2


                                VOTING AGREEMENT


         THIS VOTING AGREEMENT is entered into as of September 28, 1997 by and
between LUMISYS INCORPORATED, a Delaware corporation ("Parent"), and
___________________ ("Stockholder").

                                    RECITALS

         A. Parent, SAC Acquisition Corporation, a Delaware corporation and a
wholly owned subsidiary of Parent ("Merger Sub"), and CompuRAD, Inc., a Delaware
corporation (the "Company"), are entering into an Agreement and Plan of Merger
and Reorganization of even date herewith (as amended from time to time, the
"Reorganization Agreement"; capitalized terms used but not otherwise defined in
this Voting Agreement have the meanings assigned to such terms in the
Reorganization Agreement), which provides (subject to the conditions set forth
therein) for the merger of Merger Sub with and into the Company (the "Merger").

         B. As of the date hereof, Stockholder owns the number of shares of
Company Common Stock set forth below Stockholder's name on the signature page
hereto (all such shares, together with any shares of Company Common Stock or
other shares of capital stock of the Company that may hereafter be acquired by
Stockholder, being referred to herein as the "Subject Shares").

         C. As a condition to the willingness of Parent and Merger Sub to enter
into the Reorganization Agreement, Parent and Merger Sub have required that
Stockholder agree, and in order to induce Parent and Merger Sub to enter into
the Reorganization Agreement Stockholder has agreed, to enter into this Voting
Agreement.


                                    AGREEMENT

         The parties to this Voting Agreement, intending to be legally bound,
agree as follows:

SECTION 1. TRANSFER OF SUBJECT SHARES

         1.1 TRANSFER OF VOTING RIGHTS. Stockholder covenants and agrees that,
prior to the earlier to occur of: (i) the Effective Time, or (ii) the valid
termination of the Reorganization agreement (the "Expiration Date"), and except
as otherwise contemplated hereby, Stockholder will not deposit any of the
Subject Shares into a voting trust or grant a proxy or enter into a voting
agreement or similar agreement with respect to any of the Subject Shares.


                                        1.
<PAGE>   2
         1.2 OBLIGATIONS OF TRANSFEREES. Each transferee or any subsequent
transferee of the Subject Shares or any interest in such Subject Shares, shall
hold such Subject Shares or interest in the Subject Shares subject to all the
provisions of this Voting Agreement. Each transferee shall sign a counterpart of
this Agreement, agreeing to be bound by the terms and conditions hereof, prior
to receipt of any Subject Shares.

SECTION 2. VOTING OF SUBJECT SHARES

         2.1 PRE-TERMINATION VOTING AGREEMENT. Without in any way limiting the
Stockholder's right to vote the Subject Shares in his sole discretion on any
other matters that may be submitted to a stockholder vote, consent or other
approval (including by written consent), at any meeting of the stockholders of
the Company called to vote upon the Merger and the Reorganization Agreement or
at any adjournment thereof or in any other circumstances upon which a vote,
consent or other approval (including by written consent) with respect to the
Merger and the Reorganization Agreement is sought, the Stockholder hereby agrees
that, prior to the Expiration Date, at any meeting of the stockholders of the
Company, however called, and in any written action by consent of stockholders of
the Company, Stockholder shall vote the Subject Shares in favor of: (i) the
Merger, (ii) the execution and delivery by the Company of the Reorganization
Agreement, (iii) the adoption and approval of the terms thereof and (iv) in
favor of each of the other actions contemplated by the Reorganization Agreement
and any action required in furtherance hereof or thereof.

Prior to the Expiration Date, Stockholder shall not enter into any agreement or
understanding with any Person to vote or give instructions with respect to the
Subject Shares regarding the Merger and the Reorganization Agreement, other than
any agreement or understanding to vote or give instructions in favor of the
Merger and the Reorganization Agreement.

         2.2 PROXY; FURTHER ASSURANCES. Contemporaneously with the execution of
this Voting Agreement, Stockholder shall deliver to Parent a proxy in the form
attached hereto as Exhibit A, which shall be irrevocable to the fullest extent
permitted by law, with respect to the Subject Shares (the "Proxy").

SECTION 3. WAIVER OF APPRAISAL RIGHTS.

         Stockholder hereby waives any rights of appraisal and any dissenters'
rights that Stockholder may have in connection with the Merger.

SECTION 4. NO SOLICITATION

         Stockholder covenants and agrees that, during the period commencing on
the date of this Voting Agreement and ending on the Expiration Date, Stockholder
shall not, directly or indirectly, and shall not authorize or permit any
Representative of Stockholder, directly or indirectly, to: (i) solicit,
initiate, encourage or induce the making, submission or announcement of any
Acquisition Proposal or take any action that could reasonably be expected to
lead to an Acquisition Proposal; (ii) furnish any information regarding the
Company to any Person in connection with or in response 


                                       2.
<PAGE>   3
to an Acquisition Proposal or potential Acquisition Proposal; (iii) engage in
discussions with any Person with respect to any Acquisition Proposal; (iv)
approve, endorse or recommend any Acquisition Proposal; or (v) enter into any
letter of intent or other similar document or any Contract contemplating or
otherwise relating to any Acquisition Proposal. Stockholder shall immediately
cease any existing discussions with any Person that relate to any Acquisition
Proposal. Notwithstanding the foregoing, Stockholder shall not be prevented from
taking any action that is not prohibited under Section 4.4 of the Reorganization
Agreement, whether he is acting in his capacity as a Stockholder of the Company
or as an officer or director of the Company; provided that nothing herein shall
be deemed to excuse Stockholder's performance of his voting obligations
hereunder.

SECTION 5. REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER

         Stockholder hereby represents and warrants to Parent as follows:

         5.1 AUTHORIZATION, ETC. Stockholder has all requisite power and
capacity to execute and deliver this Voting Agreement and to perform his
obligations hereunder. This Voting Agreement has been duly executed and
delivered by Stockholder and constitutes a legal, valid and binding obligation
of Stockholder, enforceable against Stockholder in accordance with its terms,
subject to (i) laws of general application relating to bankruptcy, insolvency
and the relief of debtors, and (ii) rules of law governing specific performance,
injunctive relief and other equitable remedies.

         5.2 NO CONFLICTS, REQUIRED FILINGS AND CONSENTS.

                  (a) The execution and delivery of this Voting Agreement by
Stockholder do not, and the performance of this Voting Agreement by Stockholder
will not: (i) conflict with or violate any Legal Requirement, order, decree or
judgment applicable to Stockholder or by which he or any of his properties is
bound or affected; or (ii) result in any breach of or constitute a default (with
notice or lapse of time, or both) under, or give to others any rights of
termination, amendment, acceleration or cancellation of, or result in the
creation of an Encumbrance on the Subject Shares pursuant to, any Contract to
which Stockholder is a party or by which Stockholder or any of his properties is
bound or affected.

                  (b) The execution and delivery of this Voting Agreement by
Stockholder do not, and the performance of this Voting Agreement by Stockholder
will not, require any Consent of any Person.

         5.3 TITLE TO SUBJECT SHARES. Stockholder owns of record and
beneficially the Subject Shares set forth under Stockholder's name on the
signature page hereof and does not directly or indirectly own, either
beneficially or of record, any shares of capital stock of the Company, or rights
to acquire any shares of capital stock of the Company, other than the Subject
Shares set forth below Stockholder's name on the signature page hereof.

         5.4 ACCURACY OF REPRESENTATIONS. The representations and warranties
contained in this Voting Agreement are accurate in all respects as of the date
of this Voting Agreement, will be


                                        3.

<PAGE>   4
accurate in all respects at all times through the Expiration Date and will be
accurate in all respects as of the date of the consummation of the Merger as if
made on that date.

SECTION 6. COVENANTS OF STOCKHOLDER

         6.1 FURTHER ASSURANCES. From time to time and without additional
consideration, Stockholder will execute and deliver, or cause to be executed and
delivered, such additional or further transfers, assignments, endorsements,
proxies, consents and other instruments as Parent may reasonably request for the
purpose of effectively carrying out and furthering the intent of this Voting
Agreement.

         6.2 LEGEND. Promptly after the date of this Voting Agreement, and in
any event, no later than two business days following the date of this Voting
Agreement, Stockholder shall instruct the Company to cause each certificate of
Stockholder evidencing the Subject Shares to bear a legend in the following
form:

         THE SHARES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD, EXCHANGED
         OR OTHERWISE TRANSFERRED OR DISPOSED OF EXCEPT IN COMPLIANCE WITH THE
         TERMS AND CONDITIONS OF THE VOTING AGREEMENT DATED AS OF SEPTEMBER 28,
         1997, AS IT MAY BE AMENDED, BETWEEN THE ISSUER AND THE REGISTERED
         HOLDER OF THIS CERTIFICATE, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
         EXECUTIVE OFFICES OF THE ISSUER.

SECTION 7. MISCELLANEOUS

         7.1 SURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS. This Voting
Agreement shall terminate, and the provisions hereof shall be of no further
force or effect upon the Expiration Date.

         7.2 INDEMNIFICATION. Without in any way limiting any of the rights or
remedies otherwise available to Parent, Stockholder shall hold harmless and
indemnify Parent from and against, and shall compensate and reimburse Parent
for, any Damages (regardless of whether or not such Damages relate to a
third-party claim) which are directly or indirectly suffered or incurred at any
time by Parent, or to which Parent otherwise becomes subject, and that arise
from or are directly or indirectly connected with any breach of any
representation, warranty, covenant or obligation of Stockholder contained
herein.

         7.3 EXPENSES. All costs and expenses incurred in connection with the
transactions contemplated by this Voting Agreement shall be paid by the party
incurring such costs and expenses.

         7.4 NOTICES. Any notice or other communication required or permitted to
be delivered to either party under this Voting Agreement shall be in writing and
shall be deemed properly delivered, given and received when delivered (by hand,
by registered mail, by courier or express 


                                       4.
<PAGE>   5
delivery service or by facsimile) to the address or facsimile telephone number
set forth beneath the name of such party below (or to such other address or
facsimile telephone number as such party shall have specified in a written
notice given to the other party hereto):

                  if to Stockholder:

                      at the address set forth below Stockholder's
                      signature on the signature page hereto;


                  with a copy to:

                      Wilson Sonsini Goodrich & Rosati, Professional Corporation
                      650 Page Mill Road
                      Palo Alto, CA  94306
                      Attention:  David J. Segre


                  if to Parent:

                      Lumisys Incorporated
                      225 Humboldt Court
                      Sunnyvale,  CA 94086
                      Attention:  Stephen J. Weiss


                  with a copy to:

                      Cooley Godward LLP
                      Five Palo Alto Square
                      3000 El Camino Real
                      Palo Alto, CA  94306
                      Attention:  Andrei M. Manoliu


         7.5 SEVERABILITY. Any term or provision of this Voting Agreement which
is invalid or unenforceable in any jurisdiction shall, as to that jurisdiction,
be ineffective to the extent of such invalidity or unenforceability without
rendering invalid or unenforceable the remaining terms and provisions of this
Voting Agreement or affecting the validity or enforceability of any of the terms
or provisions of this Voting Agreement in any other jurisdiction. If any
provision of this Voting Agreement is so broad as to be unenforceable, the
provision shall be interpreted to be only so broad as is enforceable.

         7.6 ENTIRE AGREEMENT. This Voting Agreement and any documents delivered
by the parties in connection herewith constitute the entire agreement between
the parties with respect to 


                                       5.
<PAGE>   6
the subject matter hereof and thereof and supersede all prior agreements and
understandings between the parties with respect thereto. No addition to or
modification of any provision of this Voting Agreement shall be binding upon
either party hereto unless made in writing and signed by both parties hereto.
The parties hereto waive trial by jury in any action at law or suit in equity
based upon, or arising out of, this Voting Agreement or the subject matter
hereof.

         7.7 ASSIGNMENT; BINDING EFFECT. Except as provided herein, neither this
Voting Agreement nor any of the rights, interests or obligations hereunder shall
be assigned by either of the parties hereto (whether by operation of law or
otherwise) without the prior written consent of the other party, except that
Parent may assign all or any of its rights hereunder to any affiliate of Parent.
Subject to the preceding sentence, this Voting Agreement shall be binding upon
and shall inure to the benefit of (i) Stockholder and his heirs, successors and
assigns and (ii) Parent and its successors and assigns. Notwithstanding anything
contained in this Voting Agreement to the contrary, nothing in this Voting
Agreement, expressed or implied, is intended to confer on any Person other than
the parties hereto or their respective heirs, successors and assigns any rights,
remedies, obligations or liabilities under or by reason of this Voting
Agreement.

         7.8 SPECIFIC PERFORMANCE. The parties hereto agree that irreparable
damage would occur in the event that any of the provisions of this Voting
Agreement was not performed in accordance with its specific terms or was
otherwise breached. It is accordingly agreed that Parent shall be entitled to an
injunction or injunctions to prevent breaches of this Voting Agreement and to
enforce specifically the terms and provisions hereof in any Delaware court or
other court of proper jurisdiction, this being in addition to any other remedy
to which Parent is entitled at law or in equity.

         7.9 OTHER AGREEMENTS. Nothing in this Voting Agreement shall limit any
of the rights or remedies of Parent or any of the obligations of Stockholder
under any Affiliate Agreement between Parent and Stockholder or any other
agreement.

         7.10 GOVERNING LAW. This Voting Agreement shall be governed in all
respects by the laws of the State of Delaware, as applied to contracts entered
into and to be performed entirely within the State of Delaware.

         7.11 COUNTERPARTS. This Voting Agreement may be executed by the parties
hereto in separate counterparts, each of which when so executed and delivered
shall be an original, but all such counterparts shall together constitute one
and the same instrument.

         7.12 CONSTRUCTION.

                  (a) Headings of the Sections of this Voting Agreement are for
the convenience of the parties only, and shall be given no substantive or
interpretive effect whatsoever.

                  (b) For purposes of this Voting Agreement, whenever the
context requires: the singular number shall include the plural, and vice versa;
the masculine gender shall include the feminine and neuter genders; the feminine
gender shall include the masculine and neuter genders; 


                                       6.
<PAGE>   7
and the neuter gender shall include masculine and feminine genders.

                  (c) The parties hereto agree that any rule of construction to
the effect that ambiguities are to be resolved against the drafting party shall
not be applied in the construction or interpretation of this Voting Agreement.

                  (d) As used in this Voting Agreement, the words "include" and
"including," and variations thereof, shall not be deemed to be terms of
limitation, but rather shall be deemed to be followed by the words "without
limitation."

                  (e) Except as otherwise indicated, all references in this
Voting Agreement to "Sections" and "Exhibits" are intended to refer to Sections
of this Voting Agreement and Exhibits to this Voting Agreement.


                [remainder of this page intentionally left blank]


                                       7.
<PAGE>   8
         IN WITNESS WHEREOF, Parent and Stockholder have caused this Voting
Agreement to be executed as of the date first written above.


                                    LUMISYS INCORPORATED


                                    By:____________________________________
                                    Name:__________________________________
                                    Title:_________________________________


                                    STOCKHOLDER


                                    _______________________________________
                                    Name:__________________________________

                                         Address:   _______________________
                                                    _______________________
                                         Facsimile: _______________________

                                         Number of Shares of Company Common
                                         Stock owned of record as of the date 
                                         of this Voting Agreement:
                                         __________________________________


                                       8.
<PAGE>   9
                                    EXHIBIT A

                                IRREVOCABLE PROXY


         The undersigned stockholder of CompuRAD, Inc., a Delaware corporation
(the "Company"), hereby irrevocably (to the fullest extent permitted by law)
appoints and constitutes ___________________, _________________ and Lumisys,
Incorporated, a Delaware corporation ("Parent"), and each of them, the attorneys
and proxies of the undersigned with full power of substitution and
resubstitution, to the full extent of the undersigned's rights with respect to
(i) the shares of capital stock of the Company owned by the undersigned as of
the date of this proxy, which shares are specified on the final page of this
proxy and (ii) any and all other shares of capital stock of the Company which
the undersigned may acquire after the date hereof. (The shares of the capital
stock of the Company referred to in clauses (i) and (ii) of the immediately
preceding sentence are collectively referred to as the "Shares.") Upon the
execution hereof, all prior proxies given by the undersigned with respect to any
of the Shares are hereby revoked, and no subsequent proxies will be given with
respect to any of the Shares.

         This proxy is irrevocable and is coupled with an interest. This proxy
is granted in connection with the Voting Agreement of even date herewith between
Parent and the undersigned (the "Voting Agreement") and in consideration of
Parent entering into the Agreement and Plan of Merger and Reorganization of even
date herewith among Parent, SAC Acquisition Sub, Inc., a Delaware corporation
and wholly owned subsidiary of Parent, and the Company (the "Reorganization
Agreement"). Capitalized terms used but not otherwise defined in this proxy have
the meanings assigned to such terms in the Reorganization Agreement.

         The attorneys and proxies named above will be empowered, and may
exercise this proxy, to vote the Shares at any time at any meeting of the
stockholders of the Company, however called, or in any written action by consent
of stockholders of the Company, until the earlier to occur of the valid
termination of the Reorganization Agreement or the Effective Time, as follows:
(i) in favor of the Merger, (ii) in favor of the execution and delivery by the
Company of the Reorganization Agreement and the adoption and approval of the
terms thereof and (iii) in favor of each of the other actions contemplated by
the Reorganization Agreement and any action required in furtherance hereof or
thereof.


                                       A-1
<PAGE>   10
         This proxy shall be binding upon the heirs, successors and assigns of
the undersigned (including any transferee of any of the Shares).


Dated: September 28, 1997

                                    _____________________________________
                                    Name:________________________________


                                    Number of Shares of Company
                                    Common Stock:________________________


                                       A-2


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