ZITEL CORP
8-K, 1999-08-25
PATENT OWNERS & LESSORS
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<PAGE>

                       SECURITIES EXCHANGE AND 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): August 9, 1999


                                ZITEL CORPORATION
             (Exact name of registrant as specified in its charter)


                                   CALIFORNIA
                 (State or other jurisdiction of incorporation)


             0-12194                               94-2566313
      (Commission File No.)             (IRS Employer Identification No.)


                             47211 BAYSIDE PARKWAY,
                         FREMONT, CALIFORNIA 94538-6517
              (Address of principal executive offices and zip code)


       Registrant's telephone number, including area code: (510) 440-9600
<PAGE>

ITEM 5.   OTHER EVENTS.

     A.   MERGER AGREEMENT.

          On August 9, 1999, Zitel Corporation entered into an Agreement and
Plan of Merger and Reorganization whereby a newly formed wholly owned
subsidiary of Zitel is to be merged into MatriDigm Corporation with the
result that all of the issued and outstanding capital stock of MatriDigm will
be converted into fully paid and nonassessable Common Stock of Zitel and
Zitel will be the owner of all of the issued and outstanding capital stock of
MatriDigm. The transaction is subject to regulatory approvals and certain
other conditions and is expected to close in approximately 60 days from
August 9, 1999. Zitel expects to issue approximately 2,300,000 shares of its
authorized but unissued capital stock at the closing of the transaction.
Zitel currently owns approximately 31 percent of the stock of MatriDigm on a
fully converted basis and is represented on the Board of Directors of
MatriDigm by three of its executive officers, Jack H. King, Henry C. Harris
and Anna M. McCann. The consideration to be paid by Zitel was determined in
arm's length negotiations with MatriDigm and certain of its principal
stockholders.

     Reference is made to the Exhibit filed with this report for the actual
terms of the Merger Agreement.

ITEM 7.   FINANCIAL STATEMENTS AND EXHIBITS.

          The following financial statements and exhibit are furnished in
accordance with the provisions of Item 601 of Regulation S-K:

     a)   FINANCIAL STATEMENTS OF BUSINESS ACQUIRED.

          The following financial statements of MatriDigm are incorporated by
reference from Zitel's Annual Report on Form 10-K for the year ended
September 30, 1998:

          Balance Sheet as of September 30, 1997 and 1998

          Statement of Operations for the period August 9, 1995 (date of
          inception) to September 30, 1996, and for the years ended September
          30, 1997 and 1998

          Statement of Changes in Shareholders' Equity (Deficit) for the
          periods ended September 30, 1996, 1997 and 1998

          Statement of Cash Flows for the period August 9, 1995 (date of
          inception) to September 30, 1996, and for the years ended September
          30, 1997 and 1998

     b)   PRO FORMA FINANCIAL INFORMATION.

          The following pro forma financial statements will be filed by
          amendment:

          Pro Forma Condensed Consolidated Balance Sheet as of June 30, 1999

          Pro Forma Condensed Consolidated Statement of Operations for the Year
          ended September 30, 1998


                                       1.
<PAGE>

          Pro Forma Condensed Consolidated Statement of Operations for the Nine
          Months ended June 30, 1999

     c)   EXHIBIT.

<TABLE>
<CAPTION>
     Exhibit
     Number    Exhibit
     <S>       <C>
     10.1      Agreement and Plan Of Merger And Reorganization Between Zitel
               Corporation, ZM Acquisition Corporation And MatriDigm
               Corporation Dated as of August 9, 1999.
</TABLE>


                                    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, thereunto duly authorized.


                                          ZITEL CORPORATION


Dated: August 25, 1999                    By: /s/ Anna M. McCann
                                              ----------------------------------
                                              Anna M. McCann
                                              Chief Financial Officer


                                       2.
<PAGE>

                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT
NUMBER    DESCRIPTION
<S>       <C>
10.1      Agreement and Plan of Reorganization between Zitel Corporation, ZM
          Acquisition Corporation and MatriDigm Corporation dated as of
          August 9, 1999
</TABLE>


                                       1.

<PAGE>

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

                   AGREEMENT AND PLAN OF MERGER AND REORGANIZATION


                                       among:


                                 ZITEL CORPORATION,
                             a California corporation;


                               ZM ACQUISITION CORP.,
                             a California corporation;


                                        and


                               MATRIDIGM CORPORATION,
                             a California corporation;



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

                             Dated as of August 9, 1999

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


- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

                                  TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                 PAGE
<S>                                                                              <C>
SECTION 1.  DESCRIPTION OF TRANSACTION . . . . . . . . . . . . . . . . . . . . . . .1

     1.1    Merger of Merger Sub into the Company. . . . . . . . . . . . . . . . . .1

     1.2    Effect of the Merger . . . . . . . . . . . . . . . . . . . . . . . . . .1

     1.3    Closing; Effective Time. . . . . . . . . . . . . . . . . . . . . . . . .1

     1.4    Articles of Incorporation and Bylaws; Directors and Officers . . . . . .2

     1.5    Conversion of Shares . . . . . . . . . . . . . . . . . . . . . . . . . .2

     1.6    Employee Stock Options . . . . . . . . . . . . . . . . . . . . . . . . .3

     1.7    Closing of the Company's Transfer Books. . . . . . . . . . . . . . . . .3

     1.8    Exchange of Certificates . . . . . . . . . . . . . . . . . . . . . . . .3

     1.9    Dissenting Shares. . . . . . . . . . . . . . . . . . . . . . . . . . . .4

     1.10   Tax Consequences . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

     1.11   Accounting Treatment . . . . . . . . . . . . . . . . . . . . . . . . . .5

     1.12   Further Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

SECTION 2.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY  . . . . . . . . . . . . .5

     2.1    Due Organization; No Subsidiaries; Etc.. . . . . . . . . . . . . . . . .5

     2.2    Articles of Incorporation and Bylaws; Records. . . . . . . . . . . . . .6

     2.3    Capitalization, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . .6

     2.4    Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . .7

     2.5    Absence of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . .7

     2.6    Title to Assets. . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

     2.7    Bank Accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

     2.8    Equipment; Leasehold . . . . . . . . . . . . . . . . . . . . . . . . . 10

     2.9    Proprietary Assets . . . . . . . . . . . . . . . . . . . . . . . . . . 10

     2.10   Contracts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

     2.11   (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

     2.12   Compliance with Legal Requirements . . . . . . . . . . . . . . . . . . 13

     2.13   Governmental Authorizations. . . . . . . . . . . . . . . . . . . . . . 13

     2.14   Tax Matters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

     2.15   Employee and Labor Matters; Benefit Plans. . . . . . . . . . . . . . . 14

     2.16   Environmental Matters. . . . . . . . . . . . . . . . . . . . . . . . . 16


                                       i.
<PAGE>

                                  TABLE OF CONTENTS
                                    (CONTINUED)

                                                                                 PAGE

     2.17   Insurance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

     2.18   Related Party Transactions . . . . . . . . . . . . . . . . . . . . . . 17

     2.19   Legal Proceedings; Orders. . . . . . . . . . . . . . . . . . . . . . . 17

     2.20   Authority; Binding Nature of Agreement . . . . . . . . . . . . . . . . 18

     2.21   Non-Contravention; Consents. . . . . . . . . . . . . . . . . . . . . . 18

     2.22   Full Disclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SECTION 3.  REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB  . . . . . . . 19

     3.1    SEC Filings; Financial Statements. . . . . . . . . . . . . . . . . . . 19

     3.2    Authority; Binding Nature of Agreement . . . . . . . . . . . . . . . . 20

     3.3    Valid Issuance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

     3.4    Disclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

SECTION 4.  CERTAIN COVENANTS OF THE COMPANY AND THE DESIGNATED SHAREHOLDERS . . . 20

     4.1    Access and Investigation . . . . . . . . . . . . . . . . . . . . . . . 20

     4.2    Operation of the Company's Business. . . . . . . . . . . . . . . . . . 20

     4.3    Notification; Updates to Disclosure Schedule . . . . . . . . . . . . . 22

     4.4    No Negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SECTION 5.  ADDITIONAL COVENANTS OF THE PARTIES  . . . . . . . . . . . . . . . . . 23

     5.1    Filings and Consents . . . . . . . . . . . . . . . . . . . . . . . . . 23

     5.2    California Permit; Fairness Hearing. . . . . . . . . . . . . . . . . . 24

     5.3    Company Shareholders' Meeting. . . . . . . . . . . . . . . . . . . . . 24

     5.4    Public Announcements . . . . . . . . . . . . . . . . . . . . . . . . . 24

     5.5    Exchange of Company Securities . . . . . . . . . . . . . . . . . . . . 24

     5.6    Affiliate Agreements . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.7    Best Efforts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.8    Employment Contracts . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.9    Parent Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.10   (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.11   Release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.12   Termination of Employee Plans. . . . . . . . . . . . . . . . . . . . . 25


                                       ii.
<PAGE>

                                  TABLE OF CONTENTS
                                    (CONTINUED)

                                                                                 PAGE

     5.13   Indemnification. . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

     5.14   Company Option Plan. . . . . . . . . . . . . . . . . . . . . . . . . . 25

SECTION 6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF PARENT AND MERGER SUB . . . . . 26

     6.1    Accuracy of Representations. . . . . . . . . . . . . . . . . . . . . . 26

     6.2    Performance of Covenants . . . . . . . . . . . . . . . . . . . . . . . 26

     6.3    Shareholder Approval . . . . . . . . . . . . . . . . . . . . . . . . . 26

     6.4    Consents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

     6.5    Agreements and Documents . . . . . . . . . . . . . . . . . . . . . . . 26

     6.6    (Reserved) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

     6.7    Permit; Compliance With Section 3(a)(10) of the Securities Act . . . . 27

     6.8    Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

     6.9    No Restraints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

     6.10   No Legal Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . 27

     6.11   Employees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

     6.12   Termination of Employee Plans. . . . . . . . . . . . . . . . . . . . . 27

SECTION 7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF THE COMPANY . . . . . . . . . . 27

     7.1    Accuracy of Representations. . . . . . . . . . . . . . . . . . . . . . 28

     7.2    Performance of Covenants . . . . . . . . . . . . . . . . . . . . . . . 28

     7.3    Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

     7.4    Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

     7.5    No Restraints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

     7.6    Permit; Compliance with Section 3(a)(10) of the Securities Act . . . . 28

     7.7    Listing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SECTION 8.  TERMINATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

     8.1    Termination Events . . . . . . . . . . . . . . . . . . . . . . . . . . 28

     8.2    Termination Procedures . . . . . . . . . . . . . . . . . . . . . . . . 29

     8.3    Effect of Termination. . . . . . . . . . . . . . . . . . . . . . . . . 29

SECTION 9.  (RESERVED) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29


                                       iii.
<PAGE>

                                  TABLE OF CONTENTS
                                    (CONTINUED)

                                                                                 PAGE

SECTION 10. MISCELLANEOUS PROVISIONS . . . . . . . . . . . . . . . . . . . . . . . 29

     10.1   Further Assurances . . . . . . . . . . . . . . . . . . . . . . . . . . 29

     10.2   Fees and Expenses. . . . . . . . . . . . . . . . . . . . . . . . . . . 29

     10.3   Attorneys' Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

     10.4   Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

     10.5   Confidentiality. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

     10.6   Time of the Essence. . . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.7   Headings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.8   Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.9   Governing Law. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.10  Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.11  Remedies Cumulative; Specific Performance. . . . . . . . . . . . . . . 31

     10.12  Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

     10.13  Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

     10.14  Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

     10.15  Parties in Interest. . . . . . . . . . . . . . . . . . . . . . . . . . 32

     10.16  Entire Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

     10.17  Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
</TABLE>


                                       iv.
<PAGE>



                                      EXHIBITS

Exhibit A   -   Designated Shareholders (Preamble)

Exhibit B   -   Certain definitions (Preamble)

Exhibit C   -   Form of Amended and Restated Articles of Incorporation of
                Surviving Corporation (Paragraph 1.4(a))

Exhibit D   -   Directors and officers of Surviving Corporation
                (Paragraph 1.4(c))

Exhibit E   -   Form of Affiliate Agreement (Section 5.6)

Exhibit F   -   Persons to execute Affiliate Agreements (Section 5.6)

Exhibit G   -   Form of Release (Section 5.11)

Exhibit H   -   Form of legal opinion of Arter & Hadden (Paragraph
                6.5(f))

Exhibit I   -   Certain employees (Section 6.11)

Exhibit J   -   Form of legal opinion of Cooley Godward LLP (Section 7.3)


                                       v.
<PAGE>

                                 AGREEMENT AND PLAN
                            OF MERGER AND REORGANIZATION

     THIS AGREEMENT AND PLAN OF MERGER AND REORGANIZATION ("Agreement") is
made and entered into as of August 9, 1999, by and among:  ZITEL CORPORATION,
a California corporation ("Parent"); ZM ACQUISITION CORP., a California
corporation and a wholly owned subsidiary of Parent ("Merger Sub"); MATRIDIGM
CORPORATION, a California corporation (the "Company"); and the parties
identified on Exhibit A (the "Designated Shareholders").  Certain other
capitalized terms used in this Agreement are defined in Exhibit B.

                                      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
California 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 accounting purposes, it is intended that the
Merger be treated as a "purchase."

     C.   This Agreement has been approved by the respective boards of
directors of Parent, Merger Sub and the Company.

     D.   The Designated Shareholders own or will acquire the shares of the
Common Stock of the Company ("Company Common Stock"), Series B Preferred
Stock of the Company (the "Series B Preferred"), Series C Preferred Stock of
the Company (the "Series C Preferred") and Series D Preferred Stock of the
Company (the "Series D Preferred") listed on Exhibit A hereto.
Contemporaneously with the execution and delivery of this Agreement, each
Designated Shareholder is executing and delivering to Parent a Voting
Agreement of even date herewith.

                                     AGREEMENT

     The parties to this Agreement 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 California General
Corporation Law.

     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, One


                                      1.
<PAGE>

Maritime Plaza, San Francisco, California 94111 at 10:00 a.m. on August 20,
1999, or at such other time and date during the period from August 15, 1999
through October 15, 1999 as Parent may designate upon not less than five
days' prior notice to the Company (the "Scheduled Closing Time"). (The date
on which the Closing actually takes place is referred to in this Agreement as
the "Closing Date.")  Contemporaneously with or as promptly as practicable
after the Closing, a properly executed agreement of merger conforming to the
requirements of Chapter 11 of the California General Corporation Law shall be
filed with the Secretary of State of the State of California.  The Merger
shall become effective at the time such agreement of merger is filed with the
Secretary of State of the State of California (the "Effective Time").

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

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

          (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 individuals identified
     on Exhibit D.

     1.5  CONVERSION OF SHARES.

          (a)  Subject to Sections 1.8(c) and 1.9, 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 shareholder of the Company:

               (i)  each share of Company Common Stock outstanding
     immediately prior to the Effective Time shall be converted into the right
     to receive .0342857 shares of the Common Stock of Parent ("Parent Common
     Stock");

               (ii)  each share of Series B Preferred and Series D
     Preferred outstanding immediately prior to the Effective Time shall be
     converted into the right to receive .114286 shares of Parent Common Stock
     and each share of Series C Preferred outstanding immediately prior to the
     effective time shall be converted into the right to receive 9.57143
     shares of Parent Common Stock;

               (iii)  each share of Capital Stock of the Company owned by
     Parent shall be cancelled; and

               (iv)  each share of the common stock (with no par value)
     of Merger Sub outstanding immediately prior to the Effective Time shall
     be converted into one share of common stock of the Surviving Corporation.

          (b)  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


                                      2.
<PAGE>

with the Company, 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.

     1.6  EMPLOYEE STOCK OPTIONS.  At the Effective Time, each stock option
that is then outstanding under the Company's Stock Option Plans, whether
vested or unvested which has not been exercised (a "Company Option"), shall
terminate.

     1.7  CLOSING OF THE COMPANY'S TRANSFER BOOKS.  At the Effective Time,
holders of certificates representing shares of the Company's capital stock
that were outstanding immediately prior to the Effective Time shall cease to
have any rights as shareholders of the Company, and the stock transfer books
of the Company shall be closed with respect to all shares of such capital
stock outstanding immediately prior to the Effective Time.  No further
transfer of any such shares of the Company's capital 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 the
Company's capital stock (a "Company Stock Certificate") is presented to the
Surviving Corporation or Parent, such Company Stock Certificate shall be
canceled and shall be exchanged as provided in Section 1.8.

     1.8  EXCHANGE OF CERTIFICATES.

          (a)  At or as soon as practicable after the Effective Time, Parent
will send to the holders of Company Stock Certificates (i) a letter of
transmittal in customary form and containing such provisions as Parent may
reasonably specify, 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 Parent
for exchange, together with a duly executed letter of transmittal and such
other documents as may be reasonably required by Parent, 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 this
Section 1, and the Company Stock Certificate so surrendered shall be
canceled. Until surrendered as contemplated by this Section 1.8, each Company
Stock Certificate shall be deemed, from and after the Effective Time, to
represent only the right to receive upon such surrender a certificate
representing shares of Parent Common Stock (and cash in lieu of any
fractional share of Parent Common Stock) as contemplated by this 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 Parent or the
Surviving Corporation with respect to such Company Stock Certificate.

          (b)  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 share shall be paid to any such
holder, until such holder surrenders such Company Stock Certificate in
accordance with


                                      3.
<PAGE>

this Section 1.8 (at which time such holder shall be entitled to receive all
such dividends and distributions and such cash payment).

          (c)  No fractional shares of Parent Common Stock shall be issued in
connection with the Merger, and no certificates for any such fractional
shares shall be issued.  In lieu of such fractional shares, any holder of
capital stock of the Company 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, upon surrender
of such holder's Company Stock Certificate(s), be paid in cash the dollar
amount (rounded to the nearest whole cent), without interest, determined by
multiplying such fraction by the Designated Parent Stock Price.

          (d)  Parent and the Surviving Corporation shall be entitled to
deduct and withhold from any consideration payable or otherwise deliverable
to any holder or former holder of capital stock of the Company pursuant to
this Agreement such amounts as Parent or the Surviving Corporation may be
required to deduct or withhold therefrom under the Code or under any
provision of state, local or foreign tax law.  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.

          (e)  Neither Parent nor the Surviving Corporation shall be liable
to any holder or former holder of capital stock of the Company for 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, escheat or similar law.

     1.9  DISSENTING SHARES.

          (a)  Notwithstanding anything to the contrary contained in this
Agreement, any shares of capital stock of the Company that, as of the
Effective Time, are or may become "dissenting shares" within the meaning of
Section 1300(b) of the California Corporations Code shall not be converted
into or represent the right to receive Parent Common Stock in accordance with
Section 1.5 (or cash in lieu of fractional shares in accordance with Section
1.8(c)), and the holder or holders of such shares shall be entitled only to
such rights as may be granted to such holder or holders in Chapter 13 of the
California General Corporation Law; PROVIDED, HOWEVER, that if the status of
any such shares as "dissenting shares" shall not be perfected, or if any such
shares shall lose their status as "dissenting shares," then, as of the later
of the Effective Time or the time of the failure to perfect such status or
the loss of such status, such shares shall automatically be converted into
and shall represent only the right to receive (upon the surrender of the
certificate or certificates representing such shares) Parent Common Stock in
accordance with Section 1.5 (and cash in lieu of fractional shares in
accordance with Section 1.8(c)).

          (b)  The Company shall give Parent (i) prompt notice of any written
demand received by the Company prior to the Effective Time to require the
Company to purchase shares of capital stock of the Company pursuant to
Chapter 13 of the California General Corporation Law and of any other demand,
notice or instrument delivered to the Company prior to the Effective Time
pursuant to the California General Corporation Law, and (ii) the opportunity
to participate in all negotiations and proceedings with respect to any such
demand, notice or instrument.  The Company shall not make any payment or
settlement offer prior to the Effective


                                      4.
<PAGE>

Time with respect to any such demand unless Parent shall have consented in
writing to such payment or settlement offer.

     1.10  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.

     1.11  ACCOUNTING TREATMENT.  For accounting purposes, the Merger will be
treated as a "purchase."

     1.12  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 or
Parent 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 and for the benefit of the
Parent, as follows:

     2.1  DUE ORGANIZATION; NO SUBSIDIARIES; ETC.

          (a)  The Company is a corporation duly organized, validly existing
and in good standing under the laws of the State of California 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 and use its
assets in the manner in which its assets are currently owned and used; and
(iii) to perform its obligations under all Company Contracts.

          (b)  Except as set forth in Part 2.1(b) of the Disclosure Schedule,
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 name "Matridigm Corporation."

          (c)  The Company is not and has not been required to be qualified,
authorized, registered or licensed to do business as a foreign corporation in
any jurisdiction, except as set forth in Part 2.1(c) of the Disclosure
Schedule.

          (d)  Part 2.1(d) of the Disclosure Schedule accurately sets forth
(i) the names of the members of the Company's board of directors, (ii) the
names of the members of each committee of the Company's board of directors,
and (iii) the names and titles of the Company's officers.

          (e)  Except as set forth in Part 2.1(e) of the Disclosure Schedule,
the Company does not own any controlling interest in any Entity and the
Company has never owned, beneficially or otherwise, any shares or other
securities of, or any direct or indirect equity interest in, any Entity.  The
Company has not agreed and is not obligated to make any future


                                      5.
<PAGE>

investment in or capital contribution to any Entity.  The Company has not
guaranteed and is not responsible or liable for any obligation of any person
or entity.

     2.2  ARTICLES OF INCORPORATION AND BYLAWS; RECORDS.  The Company has
delivered to Parent accurate and complete copies of:  (1) the Company's
articles of incorporation and bylaws, including all amendments thereto; (2)
the stock records of the Company; and (3) the minutes and other records of
the meetings and other proceedings (including any actions taken by written
consent or otherwise without a meeting) of the shareholders of the Company,
the board of directors of the Company and all committees of the board of
directors of the Company.  There have been no formal meetings or other
proceedings of the shareholders of the Company, the board of directors of the
Company or any committee of the board of directors of the Company that are
not fully reflected in such minutes or other records.  There has not been any
violation of any of the provisions of the Company's articles of incorporation
or bylaws, and the Company has not taken any action that is inconsistent in
any material respect with any resolution adopted by the Company's
shareholders, the Company's board of directors or any committee of the
Company's board of directors.  The books of account, stock records, minute
books and other records of the Company are accurate, up-to-date and complete
in all material respects, and have been maintained in accordance with prudent
business practices.

     2.3  CAPITALIZATION, ETC.

          (a)  The authorized capital stock of the Company consists of: (i)
100,000,000 shares of Common Stock, of which 21,392,852 shares have been
issued and are outstanding as of the date of this Agreement; and (ii)
30,000,000 shares of Preferred Stock, of which 9,600,000 have been designated
Series A Preferred Stock, all of which are issued and are outstanding;
2,000,000 shares have been designated Series B Preferred Stock, all of which
are issued and outstanding; 1,500,000 shares have been designated Series C
Preferred Stock, none of which are issued and outstanding; and 5,000,000
shares have been designated Series D Preferred Stock, 2,000,000 of which are
issued and outstanding.  Each outstanding share of Preferred Stock is
convertible into one share of Company Common Stock.  All of the outstanding
shares of Company Common Stock and Preferred Stock have been duly authorized
and validly issued, and are fully paid and non-assessable.

          (b)  The Company has reserved 7,277,742 shares of Company Common
Stock for issuance under its 1996 Stock Option Plan and 1998 Stock Option
Plan, of which options to purchase 2,218,894 shares are outstanding as of the
date of this Agreement.  Part 2.3 of the Disclosure Schedule accurately sets
forth, with respect to each Company Option that is outstanding as of the date
of this Agreement:  (i) the name of the holder of such Company Option; (ii)
the total number of shares of Company Common Stock that are subject to such
Company Option and the number of shares of Company Common Stock with respect
to which such Company Option is immediately exercisable; (iii) the date on
which such Company Option was granted and the term of such Company Option;
(iv) the vesting schedule for such Company Option; (v) the exercise price per
share of Company Common Stock purchasable under such Company Option; and (vi)
whether such Company Option has been designated an "incentive stock option"
as defined in Section 422 of the Code.  Except as set forth in Part 2.3 of
the Disclosure Schedule, 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


                                      6.
<PAGE>

become convertible into or exchangeable for any shares of the capital stock
or other securities of the Company;  (iii) 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) to the Knowledge of the
Company, 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.

          (c)  All outstanding shares of Company Common Stock and Preferred
Stock, and all outstanding Company Options, 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.

          (d)  The Company has never repurchased, redeemed or otherwise
reacquired any shares of capital stock or other securities of the Company.

     2.4  FINANCIAL STATEMENTS.

          (a)  The Company has delivered to Parent the following financial
statements and notes (collectively, the "Company Financial Statements"):

               (i)  The audited balance sheets of the Company as of
       September 30, 1998 and 1997, and the related audited income statements,
       statements of shareholders' equity and statements of cash flows of the
       Company for the years then ended, together with the notes thereto and the
       qualified report and opinion of PricewaterhouseCoopers LLP relating
       thereto; and

               (ii)  the unaudited balance sheet of the Company as of
       May 31, 1999 (the "Unaudited Interim Balance Sheet"), and the related
       unaudited income statement of the Company for the seven months then
       ended.

          (b)  Except as set forth in Part 2.4(b) of the Disclosure Schedule,
the Company Financial Statements are accurate and complete in all material
respects and present fairly the financial position of the Company as of the
respective dates thereof and the results of operations and (in the case of
the financial statements referred to in Section 2.4(a)(i)) cash flows of the
Company for the periods covered thereby.  Except as set forth in Part 2.4(b)
of the Disclosure Schedule, the Company Financial Statements have been
prepared in accordance with generally accepted accounting principles applied
on a consistent basis throughout the periods covered (except that the
financial statements referred to in Section 2.4(a)(ii) do not contain
footnotes and are subject to normal and recurring year-end audit adjustments,
which will not, individually exceed $50,000 or in the aggregate exceed
$250,000).

     2.5  ABSENCE OF CHANGES.  Except as set forth in Part 2.5 of the
Disclosure Schedule, since September 30, 1998:

          (a)  there has not been any material adverse change in the
     Company's business, condition, assets, liabilities, operations, financial
     performance or prospects, and, to the Knowledge of the Company, no event
     has occurred that will, or could reasonably be expected to, have a
     Material Adverse Effect on the Company;


                                      7.
<PAGE>

          (b)  there has not been any material loss, damage or destruction
     to, or any material interruption in the use of, any of the Company's
     assets (whether or not covered by insurance);

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

          (d)  except as specified in Part 2.5(d) of the Disclosure
     Schedule, the Company has not sold, issued 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), (ii) any option
     or right to acquire any capital stock or any other security (except for
     Company Options described in Part 2.3 of the Disclosure Schedule), or
     (iii) any instrument convertible into or exchangeable for any capital
     stock or other security;

          (e)  except as specified in this Agreement, the Company has not
     amended or waived any of its rights under, or permitted the acceleration
     of vesting under, (i) any provision of its 1996 and 1998 Stock Option
     Plans, (ii) any provision of any agreement evidencing any outstanding
     Company Option, or (iii) any restricted stock purchase agreement;

          (f)  there has been no amendment to the Company's articles of
     incorporation or bylaws, and the Company has not effected or been a party
     to any Acquisition Transaction, recapitalization, reclassification of
     shares, stock split, reverse stock split or similar transaction;

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

          (h)  the Company has not made any capital expenditure which,
     when added to all other capital expenditures made on behalf of the
     Company since September 30, 1998, exceeds $50,000;

          (i)  the Company has not (i) entered into or permitted any of
     the assets owned or used by it to become bound by any Contract that is or
     would constitute a Material Contract (as defined in Section 2.10(a)), or
     (ii) amended or prematurely terminated, or waived any material right or
     remedy under, any such Contract;

          (j)  the Company has not (i) acquired, leased or licensed any
     right or other asset from any other Person, (ii) sold or otherwise
     disposed of, or leased or licensed, any right or other 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 the Company's past practices;

          (k)  the Company has not written off as uncollectible, or
     established any extraordinary reserve with respect to, any account
     receivable or other indebtedness greater than $50,000;


                                      8.
<PAGE>

          (l)  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 assets made in the ordinary course of
     business and consistent with the Company's past practices;

          (m)  the Company has not (i) lent money to any Person (other
     than pursuant to routine travel advances made to employees in the
     ordinary course of business), or (ii) incurred or guaranteed any
     indebtedness for borrowed money;

          (n)  the Company has not (i) established or adopted any Employee
     Benefit Plan, (ii) paid any bonus or made any profit-sharing or similar
     payment to, or 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 (iii) hired any new employee at
     an annual rate of pay in excess of $50,000;

          (o)  the Company has not changed any of its methods of
     accounting or accounting practices in any respect;

          (p)  the Company has not made any Tax election;

          (q)  the Company has not commenced or settled any Legal
     Proceeding;

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

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

     2.6  TITLE TO ASSETS.

          (a)  The Company owns, and has good, valid and marketable title to,
all assets purported to be owned by it, including:  (i) all assets reflected
on the Unaudited Interim Balance Sheet; (ii) all assets referred to in Parts
2.1 and 2.9 of the Disclosure Schedule and all of the Company's rights under
the Contracts identified in Part 2.10 of the Disclosure Schedule; and (iii)
all other assets reflected in the Company's books and records as being owned
by the Company.  Except as set forth in Part 2.6 of the Disclosure Schedule,
all of said assets are owned by the Company free and clear of any liens or
other Encumbrances, except for (x) any lien for current taxes not yet due and
payable, (y) minor 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 (z) inchoate liens arising under statute.

          (b)  Part 2.6 of the Disclosure Schedule identifies all assets with
an original cost greater than $25,000 and that are being leased or licensed
to the Company.


                                      9.
<PAGE>

     2.7  BANK ACCOUNTS.

          Part 2.7 of the Disclosure Schedule provides accurate information
with respect to each account maintained by or for the benefit of the Company
at any bank or other financial institution.

     2.8  EQUIPMENT; LEASEHOLD.

          (a)  All material items of equipment and other tangible assets
owned by or leased to the Company are adequate for the uses to which they are
being put and are adequate for the conduct of the Company's business in the
manner in which such business is currently being conducted.

          (b)  The Company does not own any real property or any interest in
real property, except for the leasehold created under the real property lease
identified in Part 2.10 of the Disclosure Schedule.

     2.9  PROPRIETARY ASSETS.

          (a)  Part 2.9(a)(i) of the Disclosure Schedule sets forth, with
respect to each Company Proprietary Asset registered with any Governmental
Body or for which an application has been filed with any Governmental Body,
(i) a brief description of such Proprietary Asset, and (ii) the names of the
jurisdictions covered by the applicable registration or application.  Part
2.9(a)(ii) of the Disclosure Schedule identifies and provides a brief
description of all other Company Proprietary Assets owned by the Company.
Part 2.9(a)(iii) of the Disclosure Schedule identifies and provides a brief
description of each Proprietary Asset licensed to the Company by any Person
(except for any Proprietary Asset that is licensed to the Company under any
third party software license generally available to the public at a cost of
less than $10,000), and identifies the license agreement under which such
Proprietary Asset is being licensed to the Company.  Except as set forth in
Part 2.9(a)(iv) of the Disclosure Schedule, the 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) of the Disclosure Schedule, free and clear of all
liens and other Encumbrances, and has a valid right to use all Proprietary
Assets identified in Part 2.9(a)(iii) of the Disclosure Schedule.  Except as
set forth in Part 2.9(a)(v) of the Disclosure Schedule, the Company is not
obligated to make any payment to any Person for the use of any Company
Proprietary Asset.  Except as set forth in Part 2.9(a)(vi) of the Disclosure
Schedule, the Company has not developed jointly with any other Person any
Company Proprietary Asset with respect to which such other Person has any
rights.

          (b)  The Company has taken all commercially reasonable measures and
precautions necessary to protect and maintain the confidentiality and secrecy
of all Company Proprietary Assets (except Company Proprietary Assets whose
value would be unimpaired by public disclosure) and otherwise to maintain and
protect the value of all Company Proprietary Assets.  Except as set forth in
Part 2.9(b) of the Disclosure Schedule, the Company has not (other than
pursuant to license agreements identified in Part 2.10 of the Disclosure
Schedule) disclosed or delivered to any Person, or permitted the disclosure
or delivery to any Person of, (i) the source code, or any portion or aspect
of the source code, of any Company Proprietary Asset, or (ii) the object
code, or any portion or aspect of the object code, of any Company Proprietary
Asset.


                                      10.
<PAGE>

          (c)  None of the Company Proprietary Assets infringes or conflicts
with any Proprietary Asset owned or used by any other Person.  The Company is
not infringing, misappropriating or making any unlawful use of, and the
Company has not at any time infringed, misappropriated or made any unlawful
use of, or received any notice or other communication (in writing or
otherwise) of any actual, alleged, possible or potential infringement,
misappropriation or unlawful use of, any Proprietary Asset owned or used by
any other Person. Except as set forth in Part 2.9(c) to the Disclosure
Schedule, to the Knowledge of the Company, no other Person is infringing,
misappropriating or making any unlawful use of, and no Proprietary Asset
owned or used by any other Person infringes or conflicts with, any Company
Proprietary Asset.

          (d)  Except as set forth in Part 2.9(d) of the Disclosure Schedule:
(i) each Company Proprietary Asset conforms in all material respects with
any specification, documentation, performance standard, representation or
statement made or provided with respect thereto by or on behalf of the
Company; and (ii) there has not been any claim by any customer or other
Person alleging that any Company Proprietary Asset (including each version
thereof that has ever been licensed or otherwise made available by the
Company to any Person) does not conform in all material respects with any
specification, documentation, performance standard, representation or
statement made or provided by or on behalf of the Company, and, to the
Knowledge of the Company, there is no basis for any such claim.  The Company
has established adequate reserves on the Unaudited Interim Balance Sheet to
cover all costs associated with any obligations that the Company may have
with respect to the correction or repair of programming errors or other
defects in the Company Proprietary Assets.

          (e)  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.  Except as set forth
in Part 2.9(e) of the Disclosure Schedule, (i) the Company has not licensed
any of the Company Proprietary Assets to any Person on an exclusive basis,
and (ii) the Company has not entered into any covenant not to compete or
Contract limiting its ability to exploit fully any of its Proprietary Assets
or to transact business in any market or geographical area or with any Person.

          (f)  Except as set forth in Part 2.9(f) of the Disclosure Schedule,
(i) all current and former employees of the Company 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 Confidential Information and Invention Assignment Agreement
previously delivered to Parent, and (ii) all current and former consultants
and independent contractors to the Company 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.

     2.10  CONTRACTS.

          (a)  Part 2.10 of the Disclosure Schedule identifies:

               (i)  each Company Contract relating to the employment of, or
     the performance of services by, any employee, consultant or independent
     contractor;


                                     11.
<PAGE>

               (ii)  each Company Contract relating to the acquisition,
     transfer, use, development, sharing or license of any technology or any
     Proprietary Asset;

               (iii)  each Company Contract imposing any restriction on the
     Company's right or ability (A) to compete with any other Person, (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;

               (iv)  each Company Contract creating or involving any agency
     relationship, distribution arrangement or franchise relationship;

               (v)  each Company Contract relating to the acquisition,
     issuance or transfer of any securities;

               (vi)  each Company Contract relating to the creation of any
     Encumbrance with respect to any asset of the Company;

               (vii)  each Company Contract involving or incorporating any
     guaranty, any pledge, any performance or completion bond, any indemnity
     or any surety arrangement;

               (viii)  each Company Contract creating or relating to any
     partnership or joint venture or any sharing of revenues, profits,
     losses, costs or liabilities;

               (ix)  each Company Contract relating to the purchase or sale
     of any product or other asset by or to, or the performance of any
     services by or for, any Related Party (as defined in Section 2.18);

               (x)  each Company Contract constituting or relating to a
     Government Contract or Government Bid;

               (xi)  any other Company Contract that was entered into outside
     the ordinary course of business or was inconsistent with the Company's
     past practices;

               (xii)  any other Company Contract 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; and

               (xiii)  any other Company Contract that contemplates or
     involves (A) the payment or delivery of cash or other consideration in
     an amount or having a value in excess of $10,000 in the aggregate, or
     (B) the performance of services having a value in excess of $10,000 in
     the aggregate.

(Contracts in the respective categories described in clauses "(i)" through
"(xiii)" above are referred to in this Agreement as "Material Contracts.")

          (b)  The Company has delivered to Parent accurate and complete
copies of all written Contracts identified in Part 2.10 of the Disclosure
Schedule, including all amendments


                                     12.
<PAGE>

thereto.  Part 2.10 of the Disclosure Schedule provides an accurate
description of the terms of each Company Contract that is not in written
form.  Each Contract identified in Part 2.10 of the Disclosure Schedule is
valid and in full force and effect, and, to the Knowledge of the Company, is
enforceable by 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.

          (c)  Except as set forth in Part 2.10 of the Disclosure Schedule:

               (i)  the Company has not violated or breached, or committed
     any default under, any Company Contract, and, to the Knowledge of the
     Company, no other Person has violated or breached, or committed any
     default under, any Company 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) will, or could reasonably be expected to, (A) result in a
     violation or breach of any of the provisions of any Company Contract,
     (B) give any Person the right to declare a default or exercise any
     remedy under any Company Contract, (C) give any Person the right to
     accelerate the maturity or performance of any Company Contract, or (D)
     give any Person the right to cancel, terminate or modify any Company
     Contract;

               (iii)  since September 30, 1998, the Company has not received
     any notice or other communication regarding any actual or possible
     violation or breach of, or default under, any Company Contract; and

               (iv)  the Company has not waived any of its material rights
     under any Material Contract.

          (d)  No Person is renegotiating, or has a right pursuant to the
terms of any Company Contract to renegotiate, any amount paid or payable to
the Company under any Material Contract or any other material term or
provision of any Material Contract.

          (e)  Part 2.10 of the Disclosure Schedule identifies and provides a
brief description of each proposed Contract as to which any bid, offer,
award, written proposal, term sheet or similar document has been submitted by
the Company which is still open.

     2.11  (RESERVED).

     2.12  COMPLIANCE WITH LEGAL REQUIREMENTS.  The Company is, and has at
all times since September 30, 1998 been, in compliance with all applicable
Legal Requirements, except where the failure to comply with such Legal
Requirements has not had and will not have a Material Adverse Effect on the
Company.  Except as set forth in Part 2.12 of the Disclosure Schedule, since
September 30, 1998, the Company has not received any notice or other
communication from any Governmental Body regarding any actual or possible
violation of, or failure to comply with, any Legal Requirement.

     2.13  GOVERNMENTAL AUTHORIZATIONS.  Part 2.13 of the Disclosure Schedule
identifies each material Governmental Authorization held by the Company, and
the Company has delivered to Parent accurate and complete copies of all
Governmental Authorizations identified


                                     13.
<PAGE>

in Part 2.13 of the Disclosure Schedule.  The Governmental Authorizations
identified in Part 2.13 of the Disclosure Schedule are valid and in full
force and effect, and collectively constitute all material Governmental
Authorizations necessary to enable the Company to conduct its business in the
manner in which its business is currently being conducted.

     2.14  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, accurately and
completely 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 paid or accrued.  The Company
has delivered to Parent accurate and complete copies of all Company Returns
which have been requested by Parent.

          (b)  No Company Return relating to income Taxes 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.

     2.15  EMPLOYEE AND LABOR MATTERS; BENEFIT PLANS.

          (a)  Part 2.15(a) of the 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 employee of the Company ("Employee"), except
for Plans which would not require the Company to make payments or provide
benefits having a value in excess of $25,000 in the aggregate.

          (b)  Except as set forth in Part 2.15(a) of the Disclosure
Schedule, the Company does not maintain, sponsor or contribute to, and, to
the Knowledge of the Company, has not 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 (a "Pension Plan").

          (c)  The Company maintains, sponsors or contributes only to those
employee welfare benefit plans (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 Employees or former Employees which are described
in Part 2.15(a) of the Disclosure Schedule (the "Welfare Plans"), none of
which is a multiemployer plan (within the meaning of Section 3(37) of ERISA).


                                     14.
<PAGE>

          (d)  With respect to each Plan, the Company has delivered 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, and
     all material employee communications relating 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 required to be, and, to the Knowledge of
the Company, 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.
To the Knowledge of the Company, 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).

          (f)  The Company does not have any plan or commitment to create any
additional Welfare Plan or any Pension Plan, or to modify or change any
existing Welfare Plan or Pension Plan (other than to comply with applicable
law) in a manner that would affect any Employee.

          (g)  Except as set forth in Part 2.15(g) of the Disclosure
Schedule, no Welfare Plan provides death, medical or health benefits (whether
or not insured) with respect to any current or former Employee 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
Unaudited Interim Balance Sheet, and (iii) benefits the full cost of which
are borne by current or former Employees (or the Employees' beneficiaries)).


                                     15.
<PAGE>

          (h)  With respect to each of the Welfare Plans 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.

          (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 to the Knowledge of the Company, there exists no reason
why any such determination letter should be revoked.

          (k)  Except as required pursuant to Section 5.14 and as set forth
in Part 2.15(k) of the Disclosure Schedule, 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 2.15(l) of the 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. Except as set forth on Part 2.15(l) of the Disclosure Schedule,
all of the Company's employees are "at will" employees.

          (m)  Part 2.15(m) of the 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 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.

          (o)  Except as set forth in Part 2.15(o) of the Disclosure
Schedule, the Company has good labor relations.  The Company has no reason to
believe that the consummation of the Merger or any of the other transactions
contemplated by this Agreement will have a material adverse effect on the
Company's labor relations.

     2.16  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 or other communication (in writing or otherwise), whether from a
Governmental Body, citizens group, employee or otherwise, that alleges that
the Company is not


                                     16.
<PAGE>

in compliance with any Environmental Law, and, to the Knowledge of the
Company, there are no circumstances that may prevent or interfere with the
Company's compliance 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 or other communication (in
writing or otherwise), whether from a Government Body, citizens group,
employee or otherwise, that alleges that such current or prior owner or the
Company is not in compliance with any Environmental Law.  All Governmental
Authorizations currently held by the Company pursuant to Environmental Laws
are identified in Part 2.16 of the Disclosure Schedule. (For purposes of this
Section 2.16:  (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.)

     2.17  INSURANCE.  Part 2.17 of the Disclosure Schedule identifies all
insurance policies maintained by, at the expense of or for the benefit of the
Company and identifies any material claims made thereunder, and the Company
has delivered to Parent accurate and complete copies of the insurance
policies identified on Part 2.17 of the Disclosure Schedule.  Each of the
insurance policies identified in Part 2.17 of the Disclosure Schedule is in
full force and effect.  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 claim under any insurance policy, or (c) material adjustment
in the amount of the premiums payable with respect to any insurance policy.

     2.18  RELATED PARTY TRANSACTIONS.  Except as set forth in Part 2.18 of
the Disclosure Schedule, no contracts, agreements or other arrangements (oral
or written) are in effect as of the date hereof between (a) on the one hand,
the Company and (b) on the other hand, any of its affiliates.  For purposes
of this Section 2.18, an "affiliate" of the Company shall mean any other
person directly or indirectly controlling or controlled by or under direct or
indirect common control with such person.

     2.19  LEGAL PROCEEDINGS; ORDERS.

          (a)  Except as set forth in Part 2.19 of the Disclosure Schedule,
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 or any Person
whose liability the Company has or may have retained or assumed, either
contractually or by operation of law; 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, except as set forth in Part
2.19 of the Disclosure Schedule, no event has occurred, and no claim, dispute
or other condition or circumstance exists, that will, or that could
reasonably be expected to, give rise to or serve as a basis for the
commencement of any such Legal Proceeding.


                                     17.
<PAGE>

          (b)  Except as set forth in Part 2.19 of the Disclosure Schedule,
no Legal Proceeding has ever been commenced by or has ever been pending
against the Company.

          (c)  There is no 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 other 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 Company's business.

     2.20  AUTHORITY; BINDING NATURE OF AGREEMENT.  The Company has the
absolute and unrestricted right, power and authority to enter into and to
perform its obligations under this Agreement; and the execution, delivery and
performance by the Company of this Agreement have been duly authorized by all
necessary action on the part of the Company and its board of directors.  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.

     2.21  NON-CONTRAVENTION; CONSENTS.  Except as set forth in Part 2.21 of
the Disclosure Schedule, 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 Company's articles of incorporation or bylaws,
     or (ii) any resolution adopted by the Company's shareholders, the
     Company's board of directors or any committee of the Company's board of
     directors;

          (b)  contravene, conflict with or result in a violation of, or give
     any Governmental Body or other Person the right to challenge any of the
     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 Company's business 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, any provision of any Company Contract
     that is or would constitute a Material Contract, or give any Person the
     right to (i) declare a default or exercise any remedy under any such
     Material Contract, (ii) accelerate the maturity or performance of any
     such Material Contract, or (iii) cancel, terminate or modify any such
     Material Contract; or


                                     18.
<PAGE>

          (e)  result in the imposition or creation of any lien or other
     Encumbrance upon or with respect to any asset owned or used by the
     Company (except for minor liens that will 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).

Except as set forth in Part 2.21 of the Disclosure Schedule, the Company is
not and 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 (x) the
execution, delivery or performance of this Agreement or any of the other
agreements referred to in this Agreement, or (y) the consummation of the
Merger or any of the other transactions contemplated by this Agreement.

     2.22  FULL DISCLOSURE.

          (a)  This Agreement (including the Disclosure Schedule) does not,
and the Company's Closing Certificate will not, (i) contain any
representation, warranty or information that is false or misleading with
respect to any material fact, or (ii) omit to state any material fact or
necessary in order to make the representations, warranties and information
contained and to be contained herein and therein (in the light of the
circumstances under which such representations, warranties and information
were or will be made or provided) not false or misleading.

          (b)  The information supplied by the Company for inclusion in the
Information Statement (as defined in Section 5.2) will not, as of the date of
the Information Statement or as of the date of the Company Shareholders'
Meeting (as defined in Section 5.3), (i) contain any statement that is
inaccurate or misleading with respect to any material fact, or (ii) omit to
state any material fact necessary in order to make such information (in the
light of the circumstances under which it is provided) not false or
misleading.

SECTION 3.  REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB

     Parent and Merger Sub jointly and severally represent and warrant to the
Company and the Signing Shareholders as follows:

     3.1  SEC FILINGS; FINANCIAL STATEMENTS.

          (a)  Parent has delivered to the Company accurate and complete
copies (excluding copies of exhibits) of each report, registration statement
(on a form other than Form S-8) and definitive proxy statement filed by
Parent with the SEC between October 1, 1998 and the date of this Agreement
(the "Parent SEC Documents").  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:  (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


                                     19.
<PAGE>

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.

     3.2  AUTHORITY; BINDING NATURE OF AGREEMENT.  Parent and Merger Sub have
the absolute and unrestricted right, power and authority to perform their
obligations under this Agreement; and the execution, delivery and performance
by Parent and Merger Sub of this Agreement (including the contemplated
issuance of Parent Common Stock in the Merger in accordance with this
Agreement) have been duly authorized by all necessary action on the part of
Parent and Merger Sub and their respective boards of directors.  No vote of
Parent's stockholders is needed to approve the Merger.  This Agreement
constitutes the legal, valid and binding obligation of Parent and Merger Sub,
enforceable against them 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.

     3.3  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.

     3.4  DISCLOSURE.  The information supplied by the Company for inclusion
in the Information Statement (as defined in Section 5.2) will not, as of the
date of the Information Statement or as of the date of the Company
Shareholders' Meeting (as defined in Section 5.3), (i) contain any statement
that is inaccurate or misleading with respect to any material fact, or (ii)
omit to state any material fact necessary in order to make such information
(in the light of the circumstances under which it is provided) not false or
misleading.

SECTION 4.  CERTAIN COVENANTS OF THE COMPANY AND THE DESIGNATED SHAREHOLDERS

     4.1  ACCESS AND INVESTIGATION.  During the period from the date of this
Agreement through the Effective Time (the "Pre-Closing Period"), the Company
shall, and shall cause its Representatives to:  (a) provide Parent and
Parent's Representatives with reasonable access to the Company's
Representatives, personnel and assets and to all existing books, records, Tax
Returns, work papers and other documents and information relating to the
Company; and (b) provide Parent and Parent's Representatives with copies of
such existing books, records, Tax Returns, work papers and other documents
and information relating to the Company, and with such additional financial,
operating and other data and information regarding the Company, as Parent may
reasonably request.

     4.2  OPERATION OF THE COMPANY'S BUSINESS.  During the Pre-Closing Period:

          (a)  the Company shall conduct its business and operations in the
     ordinary course and in substantially the same manner as such business
     and operations have been conducted prior to the date of this Agreement;


                                     20.
<PAGE>

          (b)  the Company shall use reasonable efforts to preserve intact its
     current business organization, keep available the services of its current
     officers and employees and maintain its relations and good will with all
     suppliers, customers, landlords, creditors, employees and other Persons
     having business relationships with the Company;

          (c)  the Company shall keep in full force all insurance policies
     identified in Part 2.17 of the Disclosure Schedule;

          (d)  the Company shall cause its Chief Executive Officer or Chief
     Financial Officer to report regularly (but in no event less frequently
     than weekly) to Parent concerning the status of the Company's business;

          (e)  the Company shall not declare, accrue, set aside or pay any
     dividend or make any other distribution in respect of any shares of
     capital stock, and shall not repurchase, redeem or otherwise reacquire
     any shares of capital stock or other securities;

          (f)  the Company shall not sell, issue or authorize the issuance
     of (i) any capital stock or other security, (ii) any option or right to
     acquire any capital stock or other security, or (iii) any instrument
     convertible into or exchangeable for any capital stock or other security
     (except that the Company shall be permitted to issue Company Common Stock
     to employees upon the exercise of outstanding Company Options;

          (g)  except as required pursuant to Section 5.14, the Company shall
     not amend or waive any of its rights under, or permit the acceleration of
     vesting under, (i) any provision of its Stock Option Plan, (ii) any
     provision of any agreement evidencing any outstanding Company Option, or
     (iii) any provision of any restricted stock purchase agreement;

          (h)  neither the Company nor any of the Designated Shareholders shall
     amend or permit the adoption of any amendment to the Company's articles of
     incorporation or bylaws, or effect or permit the Company to become a party
     to any Acquisition Transaction, recapitalization, reclassification of
     shares, stock split, reverse stock split or similar transaction;

          (i)  the Company shall not form any subsidiary or acquire any equity
     interest or other interest in any other Entity;

          (j)  the Company shall not make any capital expenditure, except for
     capital expenditures that, when added to all other capital expenditures
     made on behalf of the Company during the Pre-Closing Period, do not exceed
     $10,000 per transaction;

          (k)  the Company shall not (i) enter into, or permit any of the
     assets owned or used by it to become bound by, any Contract that is or
     would constitute a Material Contract, or (ii) amend or prematurely
     terminate, or waive any material right or remedy under, any such Contract;

          (l)  except as set forth in Part 4.2(l) of the Disclosure Schedule,
     the Company shall not (i) acquire, lease or license any right or other
     asset from any other Person, (ii) sell or otherwise dispose of, or lease
     or license, any right or other asset to any other


                                      21.
<PAGE>

     Person, or (iii) waive or relinquish any right, except for assets
     acquired, leased, licensed or disposed of by the Company pursuant to
     Contracts that are not Material Contracts;

          (m)  the Company shall not (i) lend money to any Person (except that
     the Company may make routine travel advances to employees in the ordinary
     course of business and may, consistent with its past practices, allow
     employees to acquire Company Common Stock in exchange for promissory notes
     upon exercise of Company Options), or (ii) incur or guarantee any
     indebtedness for borrowed money;

          (n)  the Company shall not (i) establish, adopt or amend any Employee
     Benefit Plan, (ii) pay any bonus or make any profit-sharing payment, cash
     incentive payment 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, or
     (iii) hire any new employee whose aggregate annual compensation is
     expected to exceed $75,000;

          (o)  the Company shall not change any of its methods of accounting or
     accounting practices in any material respect;

          (p)  the Company shall not make any Tax election;

          (q)  the Company shall not commence or settle any material Legal
     Proceeding;

          (r)  the Company shall not agree or commit to take any of the actions
     described in clauses "(e)" through "(q)" above.

Notwithstanding the foregoing, the Company may take any action described in
clauses "(g)" through "(r)" above if Parent gives its prior written consent
to the taking of such action by the Company, which consent will not be
unreasonably withheld (it being understood that Parent's withholding of
consent to any action will not be deemed unreasonable if Parent determines in
good faith that the taking of such action would not be in the best interests
of Parent or would not be in the best interests of the Company).

     4.3  NOTIFICATION; UPDATES TO DISCLOSURE SCHEDULE.

          (a)  During the Pre-Closing Period, the Company shall promptly
notify Parent in writing of:

               (i)  the discovery by the Company of any event, condition, fact
     or circumstance that occurred or existed on or prior to the date of this
     Agreement and that caused or constitutes an inaccuracy in or breach of any
     representation or warranty made by the Company in this Agreement;

               (ii)  any event, condition, fact or circumstance that occurs,
     arises or exists after the date of this Agreement and that would cause or
     constitute an inaccuracy in or breach of any representation or warranty
     made by the Company in this Agreement if (A) such representation or
     warranty had been made as of the time of the occurrence, existence or
     discovery of such event, condition, fact or circumstance, or (B) such
     event,


                                      22.
<PAGE>

     condition, fact or circumstance had occurred, arisen or existed on or
     prior to the date of this Agreement;

               (iii)  any breach of any covenant or obligation of the Company
     or any of the Designated Shareholders; and

               (iv)  any event, condition, fact or circumstance that would make
     the timely satisfaction of any of the conditions set forth in Section 6 or
     Section 7 impossible or unlikely.

          (b)  If any event, condition, fact or circumstance that is required
to be disclosed pursuant to Section 4.3(a) requires any change in the
Disclosure Schedule, or if any such event, condition, fact or circumstance
would require such a change assuming the Disclosure Schedule were dated as of
the date of the occurrence, existence or discovery of such event, condition,
fact or circumstance, then the Company shall promptly deliver to Parent an
update to the Disclosure Schedule specifying such change.  No such update
shall be deemed to supplement or amend the Disclosure Schedule for the
purpose of (i) determining the accuracy of any of the representations and
warranties made by the Company in this Agreement, or (ii) determining whether
any of the conditions set forth in Section 6 has been satisfied.

     4.4  NO NEGOTIATION.  During the Pre-Closing Period, neither the Company
nor any of the Designated Shareholders shall, directly or indirectly:

          (a)  solicit or encourage the initiation of any inquiry, proposal or
     offer from any Person (other than Parent) relating to a possible
     Acquisition Transaction;

          (b)  participate in any discussions or negotiations or enter into any
     agreement with, or provide any non-public information to, any Person
     (other than Parent) relating to or in connection with a possible
     Acquisition Transaction; or

          (c)  consider, entertain or accept any proposal or offer from any
     Person (other than Parent) relating to a possible Acquisition Transaction.

The Company shall promptly notify Parent in writing of any material inquiry,
proposal or offer relating to a possible Acquisition Transaction that is
received by the Company or any of the Designated Shareholders during the
Pre-Closing Period.

SECTION 5.  ADDITIONAL COVENANTS OF THE PARTIES

     5.1  FILINGS AND CONSENTS.  As promptly as practicable after the
execution of this Agreement, each party to this Agreement (a) 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, and (b) shall use all commercially reasonable
efforts to obtain all Consents (if any) required to be obtained (pursuant to
any applicable Legal Requirement or Contract, or otherwise) by such party in
connection with the Merger and the other transactions contemplated by this
Agreement.  The Company shall (upon request) promptly deliver to Parent a
copy of each such filing made, each such notice given and each such Consent
obtained by the Company during the Pre-Closing Period.


                                      23.
<PAGE>

     5.2  CALIFORNIA PERMIT; FAIRNESS HEARING.  Promptly after the execution
of this Agreement, the Company and Parent shall prepare and cause to be filed
with the California Commissioner of Corporations (the "California
Commissioner") a permit application under Section 25121 of the California
Corporations Code, and a related information statement or other disclosure
document (the "Information Statement"), and shall request a hearing on the
fairness of the terms and conditions of the Merger pursuant to Section 25142
of the California Corporations Code.  The parties to this Agreement shall use
all commercially reasonable efforts to cause the California Commissioner to
approve the fairness of the terms and conditions of the Merger at such a
hearing; PROVIDED, HOWEVER, that Parent shall not be required to modify any
of the terms of the Merger in order to cause the California Commissioner to
approve the fairness of such terms and conditions.  The Company shall provide
and include in the Information Statement such information relating to the
Company as may be required pursuant to the rules of the California
Commissioner.  The Information Statement shall include the recommendation of
the board of directors of the Company in favor of the Merger.

     5.3  COMPANY SHAREHOLDERS' MEETING.  The Company shall, in accordance
with its articles of incorporation and bylaws and the applicable requirements
of the California General Corporation Law, call and hold a special meeting of
its shareholders as promptly as practicable for the purpose of permitting
them to consider and to vote upon and approve the Merger and this Agreement
(the "Company Shareholders' Meeting").  As soon as permissible under the
rules of the California Commissioner, the Company shall cause a copy of the
Information Statement to be delivered to each shareholder of the Company who
is entitled to vote at the Company Shareholders' Meeting.

     5.4  PUBLIC ANNOUNCEMENTS.  During the Pre-Closing Period, (a) neither
the Company nor any of the Designated Shareholders shall (and the Company
shall not permit any of its Representatives to) issue any press release or
make any public statement regarding this Agreement or the Merger, or
regarding any of the other transactions contemplated by this Agreement,
without Parent's prior written consent, and (b) Parent will use reasonable
efforts to consult with the Company prior to issuing any press release or
making any public statement regarding the Merger.

     5.5  EXCHANGE OF COMPANY SECURITIES.  Prior to the Closing:

          (a)  ACS BRC Holdings, Inc., will exchange its $400,000 receivable
     from the Company for 2,000,000 shares of Company Common Stock and will
     release its warrant to acquire 275,000 shares of Company Common Stock;

          (b)  JBJ Partners, Ltd. will release its warrant to purchase
     1,500,000 shares of Series C Preferred Stock and EFO Holding, L.P. will
     release its warrant to acquire 275,000 shares of Company Common Stock; and

          (c)  Lynx Venture Partners I, LLC ("Lynx") (i) will exchange its
     Convertible Promissory Note of the Company in the principal amount of
     $5,000,000 for 100,000 shares of Series C Preferred, (ii) will cancel
     accrued interest on such note for shares of Series C Preferred at the rate
     of 0.02 shares for each dollar of accrued interest and (iii) will cancel
     its rights under a certain undated Term Sheet with the Company which


                                      24.
<PAGE>

     provides, among other things, for Lynx to receive additional consideration
     with respect to its investment in the Company in certain transactions.

     5.6  AFFILIATE AGREEMENTS.  Each Designated Shareholder shall execute
and deliver to Parent, and the Company shall use all commercially reasonable
efforts to cause each other Person identified on Exhibit F (and any other
Person that could reasonably be deemed to be an "affiliate" of the Company
for purposes of the Securities Act), to execute and deliver to Parent, as
promptly as practicable after the execution of this Agreement, an Affiliate
Agreement in the form of Exhibit E.

     5.7  BEST EFFORTS.  During the Pre-Closing Period, (a) the Company and
the Designated Shareholders shall use their best efforts to cause the
conditions set forth in Section 6 to be satisfied on a timely basis, and (b)
Parent and Merger Sub shall use their best efforts to cause the conditions
set forth in Section 7 to be satisfied on a timely basis.

     5.8  EMPLOYMENT CONTRACTS.  The employment contracts between James T.
Brady, Franklin Chiang and the Company shall be terminated.

     5.9  PARENT OPTIONS.  As soon as practical following the Effective Time
Parent will issue to employees of the Company options under its Qualified
Stock Option Plan (the "Option Plan") exercisable for approximately 550,000
shares of Common Stock of Parent.  These options shall vest one year after
the date of grant and otherwise include the standard terms and conditions of
options under the Option Plan, including an exercise price equal to the fair
market value of the Common Stock of Parent on the date of grant.

     5.10  (RESERVED).

     5.11  RELEASE.  At the Closing, each of the Designated Shareholders
shall execute and deliver to the Company and the Parent a release of all
claims against the Company, Parent and Merger sub, except under Sections 1.5
and 1.7 above, in the form of Exhibit G.

     5.12  TERMINATION OF EMPLOYEE PLANS.  Prior to the Closing the Company
shall cooperate with the Parent to determine which of the Company's employee
benefit plans and insurance policies, including directors and officers
insurance, should be continued, which should be merged into plans and
policies of the Parent and to schedule such mergers and terminations so as to
minimize the financial impact of such actions on the Company; PROVIDED that
the scope or amount of coverage available to the Company's current or former
directors or officers following the Closing shall be no less advantageous in
any material respect to the covered persons than the coverages provided under
the Company's current officers and directors policy.

     5.13  INDEMNIFICATION.  Parent agrees not to amend the Articles of
Incorporation or Section 63 of the Bylaws of Merger Sub (which become the
Bylaws of the Company) in any manner which would adversely impact the rights
to indemnification or limitation of liability of any director or officer or
any former director or officer of the Company.

     5.14  COMPANY OPTION PLAN.  Not later than 15 days prior to the Closing,
the Company agrees to notify the holders of options pursuant to Section
5(b)(2)b of the Company's 1996 Stock Option Plan and the 1998 Stock Option
Plan that the Parent has refused to assume or


                                      25.
<PAGE>

substitute options, that the options are fully exercisable for a period of 15
days from the date of the notice and that the options shall expire at the end
of that 15-day period.

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:

     6.1  ACCURACY OF REPRESENTATIONS.  Each of the representations and
warranties made by the Company in this Agreement and in each of the other
agreements and instruments delivered to Parent in connection with the
transactions contemplated by this Agreement shall have been accurate in all
respects (with regard to representations and warranties containing
materiality or Material Adverse Effect Qualifications), and shall be accurate
in all material respects (with regard to representations and warranties that
do not contain materiality or Material Adverse Effect Qualifications), in
each case as of the Scheduled Closing Time as if made at the Scheduled
Closing Time and the Company shall not have suffered a Material Adverse
Effect between the date of this Agreement and the Closing.

     6.2  PERFORMANCE OF COVENANTS.  All of the covenants and obligations
that the Company and the Designated Shareholders 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, including the obligations set forth in
Section 5.5 above.

     6.3  SHAREHOLDER APPROVAL.  The principal terms of the Merger shall have
been duly approved by the affirmative vote of at least (a) 90% of the shares
of Company Common Stock entitled to vote with respect thereto, and (b) all of
the shares of Preferred Stock entitled to vote with respect thereto.

     6.4  CONSENTS.  All material Consents required to be obtained in
connection with the Merger and the other transactions contemplated by this
Agreement (including the Consents identified in Part 2.21 of the Disclosure
Schedule) shall have been obtained and shall be in full force and effect.

     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 E, executed by the
     Persons identified on Exhibit F and by any other Person who could
     reasonably be deemed to be an "affiliate" of the Company for purposes of
     the Securities Act;

          (b)  Releases in the form of Exhibit G, executed by the Designated
     Shareholders;

          (c)  a certificate executed by the Chief Executive Officer and the
     Chief Financial Officer of the Company confirming that the conditions set
     forth in paragraphs 6.1 and 6.2 have been satisfied;


                                      26.
<PAGE>

          (d)  a legal opinion of Arter & Hadden LLP, dated as of the Closing
     Date, in the form of Exhibit H;

          (e)  a certificate executed by the Designated Shareholders and
     containing the representation and warranty of each Designated Shareholder
     that such Designated Stockholder has performed all of the covenants to be
     performed by such Designated Stockholder on or before the Closing Date; and

          (f)  written resignations of all directors of the Company, effective
     as of the Effective Time.

     6.6  (RESERVED).

     6.7  PERMIT; COMPLIANCE WITH SECTION 3(a)(10) OF THE SECURITIES ACT.  The
California Commissioner shall have issued a permit under Section 25121 of the
California Corporations Code (following a hearing upon the fairness of the
terms and conditions of the Merger, conducted pursuant to Section 25142 of
the California Corporations Code) for the issuance of the Parent Common Stock
to be issued in the Merger, and all applicable requirements of Section
3(a)(10) of the Securities Act shall have been satisfied.

     6.8  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.

     6.9  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.

     6.10  NO LEGAL PROCEEDINGS.  No Person shall have commenced or
threatened to commence any Legal Proceeding challenging or seeking the
recovery of a material amount of damages in connection with the Merger or
seeking to prohibit or limit the exercise by Parent of any material right
pertaining to its ownership of stock of the Surviving Corporation.

     6.11  EMPLOYEES.  None of the five individuals identified on Exhibit I,
no more than eight of the sixteen current factory employees of the Company
and no more than five of the ten current research and development employees
of the Company shall have ceased to be employed by, or expressed an intention
to terminate their employment with, the Company.

     6.12  TERMINATION OF EMPLOYEE PLANS.  The Company shall have provided
Parent with evidence, reasonably satisfactory to Parent, as to the
termination of the benefit plans referred to in Section 5.12.

SECTION 7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF THE COMPANY

     The obligations 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:


                                      27.
<PAGE>

     7.1  ACCURACY OF REPRESENTATIONS.  Each of the representations and
warranties made by Parent and Merger Sub in this Agreement shall have been
accurate in all material respects as of the date of this Agreement (without
giving effect to any materiality or similar qualifications contained in such
representations and warranties), and shall be accurate in all material
respects as of the Scheduled Closing Time as if made at the Scheduled Closing
Time (without giving effect to any materiality or similar qualifications
contained in such representations and warranties).

     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
respects.

     7.3  DOCUMENTS.  The Company shall have received a legal opinion of
Cooley Godward LLP, dated as of the Closing Date, in the form of Exhibit J.

     7.4  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.

     7.5  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.

     7.6  PERMIT; COMPLIANCE WITH SECTION 3(a)(10) OF THE SECURITIES ACT. The
California Commissioner shall have issued a permit under Section 25121 of the
California Corporations Code (following a hearing upon the fairness of the
terms and conditions of the Merger, conducted pursuant to Section 25142 of
the California Corporations Code) for the issuance of the Parent Common Stock
to be issued in the Merger, and all applicable requirements of Section
3(a)(10) of the Securities Act shall have been satisfied.

     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.

SECTION 8.  TERMINATION

     8.1  TERMINATION EVENTS.  This Agreement may be terminated prior to the
Closing:

          (a)  by Parent if Parent reasonably determines that the timely
     satisfaction of any condition set forth in Section 6 has become impossible
     (other than as a result of any failure on the part of Parent or Merger Sub
     to comply with or perform any covenant or obligation of Parent or Merger
     Sub set forth in this Agreement);

          (b)  by the Company if the Company reasonably determines that the
     timely satisfaction of any condition set forth in Section 7 has become
     impossible (other than as a result of any failure on the part of the
     Company or any of the Designated Shareholders to comply with or perform
     any covenant or obligation set forth in this Agreement or in any other
     agreement or instrument delivered to Parent);


                                      28.
<PAGE>

          (c)  by Parent at or after the Scheduled Closing Time if any
     condition set forth in Section 6 has not been satisfied by the Scheduled
     Closing Time;

          (d)  by the Company at or after the Scheduled Closing Time if any
     condition set forth in Section 7 has not been satisfied by the Scheduled
     Closing Time;

          (e)  by Parent if the Closing has not taken place on or before
     October 15, 1999 (other than as a result of any failure on the part of
     Parent to comply with or perform any covenant or obligation of Parent set
     forth in this Agreement);

          (f)  by the Company if the Closing has not taken place on or before
     October 15, 1999 (other than as a result of the failure on the part of the
     Company or any of the Designated Shareholders to comply with or perform
     any covenant or obligation set forth in this Agreement or in any other
     agreement or instrument delivered to Parent); or

          (g)  by the mutual consent of Parent and the Company.

     8.2  TERMINATION PROCEDURES.  If Parent wishes to terminate this
Agreement pursuant to Section 8.1(a), Section 8.1(c) or Section 8.1(e),
Parent shall deliver to the Company a written notice stating that Parent is
terminating this Agreement and setting forth a brief description of the basis
on which Parent is terminating this Agreement.  If the Company wishes to
terminate this Agreement pursuant to Section 8.1(b), Section 8.1(d) or
Section 8.1(f), the Company shall deliver to Parent a written notice stating
that the Company is terminating this Agreement and setting forth a brief
description of the basis on which the Company is terminating this Agreement.

     8.3  EFFECT OF TERMINATION.  If this Agreement is terminated pursuant to
Section 8.1, all further obligations of the parties under this Agreement
shall terminate; PROVIDED, HOWEVER, that: (a) neither the Company nor Parent
shall be relieved of any obligation or liability arising from any prior
breach by such party of any provision of this Agreement; (b) the parties
shall, in all events, remain bound by and continue to be subject to the
provisions set forth in Section 10; and (c) the Company shall, in all events,
remain bound by and continue to be subject to Section 5.4.

SECTION 9.  (RESERVED)

SECTION 10.  MISCELLANEOUS PROVISIONS

     10.1  FURTHER ASSURANCES.  Each party hereto shall execute and cause to
be delivered to each other party hereto such instruments and other documents,
and shall take such other actions, as such other party may reasonably request
(prior to, at or after the Closing) for the purpose of carrying out or
evidencing any of the transactions contemplated by this Agreement.

     10.2  FEES AND EXPENSES.  Each party to this Agreement shall bear and
pay all fees, costs and expenses (including legal fees and accounting fees)
that have been incurred or that are incurred by such party in connection with
the transactions contemplated by this Agreement, including all fees, costs
and expenses incurred by such party in connection with or by virtue of (a)
the investigation and review conducted by Parent and its Representatives with
respect to the Company's business (and the furnishing of information to
Parent and its Representatives in


                                      29.
<PAGE>

connection with such investigation and review), (b) the negotiation,
preparation and review of this Agreement (including the Disclosure Schedule)
and all agreements, certificates, opinions and other instruments and
documents delivered or to be delivered in connection with the transactions
contemplated by this Agreement, (c) the preparation and submission of any
filing or notice required to be made or given in connection with any of the
transactions contemplated by this Agreement, and the obtaining of any Consent
required to be obtained in connection with any of such transactions, and (d)
the consummation of the Merger.

     10.3  ATTORNEYS' FEES.  If any action or proceeding relating to this
Agreement or the enforcement of any provision of this Agreement is brought
against any party hereto, 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).

     10.4  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:        Zitel Corporation
                          47211 Bayside Drive
                          Fremont, CA  94538-6517
                          Attn: Chief Executive Officer
                          Ph.: (510) 440-9600
                          Fax: (510) 440-8526

     IF TO THE COMPANY:   Matridigm Corporation
                          4777 Hellyer Avenue
                          San Jose, CA  95138
                          Attn: Robert Luth
                          Ph.: (408) 360-3210
                          Fax: (408) 225-1901

          With copy (which shall not constitute notice):
                          William L. Rivers
                          Arter & Hadden LLP
                          1717 Main Street, Suite 4100
                          Dallas, TX 75201
                          Ph:  (214) 761-4357
                          Fax: (214) 741-7139

          IF TO ANY OF THE DESIGNATED SHAREHOLDERS:

     10.5  CONFIDENTIALITY.  Without limiting the generality of anything
contained in Section 5.4, on and at all times after the Closing Date, each
Designated Shareholder shall keep confidential, and shall not use or disclose
to any other Person, any non-public document or other


                                      30.
<PAGE>

non-public information in such Signing Shareholder's possession that relates
to the business of the Company or Parent.

     10.6  TIME OF THE ESSENCE.  Time is of the essence of this Agreement.

     10.7  HEADINGS.  The underlined headings 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.

     10.8  COUNTERPARTS.  This Agreement may be executed in several
counterparts, each of which shall constitute an original and all of which, when
taken together, shall constitute one agreement.

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

     10.10  SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon:
the Company and its successors and assigns (if any); the Designated
Shareholders and their respective personal representatives, executors,
administrators, estates, heirs, successors and assigns (if any); Parent and
its successors and assigns (if any); and Merger Sub and its successors and
assigns (if any).  This Agreement shall inure to the benefit of: the Company;
the Company's shareholders (to the extent set forth in Section 1.5); Parent;
Merger Sub; the Company's current officers and directors (to the extent of
the indemnification, insurance requirements and limitation of liability
arising under Sections 1.4, 5.12 and 5.13); and the respective personal
representative, executors, administrators and heirs, successors and assigns
(if any) of the foregoing.  Parent may freely assign any or all of its rights
under this Agreement, in whole or in part, to any other Person without
obtaining the consent or approval of any other party hereto or of any other
Person.

     10.11  REMEDIES CUMULATIVE; SPECIFIC PERFORMANCE.  The rights and
remedies of the parties hereto shall be cumulative (and not alternative).
The parties to this Agreement agree that, in the event of any breach or
threatened breach by any party to this Agreement of any covenant, obligation
or other provision set forth in this Agreement for the benefit of any other
party to this Agreement, such other party shall be entitled (in addition to
any other remedy that may be available to it) 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.

     10.12  WAIVER.

          (a)  No failure on the part of any Person to exercise any power,
right, privilege or remedy under this Agreement, and no delay on the part of
any Person 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 Person 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


                                      31.
<PAGE>

such claim, power, right, privilege or remedy is expressly set forth in a
written instrument duly executed and delivered on behalf of such Person; and
any such waiver shall not be applicable or have any effect except in the
specific instance in which it is given.

     10.13  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 all of the parties hereto.

     10.14  SEVERABILITY.  In the event that any provision of this Agreement,
or the application of any such provision to any Person or set of
circumstances, shall be determined to be invalid, unlawful, void or
unenforceable to any extent, the remainder of this Agreement, and the
application of such provision to Persons or circumstances other than those as
to which it is determined to be invalid, unlawful, void or unenforceable,
shall not be impaired or otherwise affected and shall continue to be valid
and enforceable to the fullest extent permitted by law.

     10.15  PARTIES IN INTEREST.  Except for the provisions of Section 1.5 or
as provided in Section 10.10 none of the provisions of this Agreement is
intended to provide any rights or remedies to any Person other than the
parties hereto and their respective successors and assigns.

     10.16  ENTIRE AGREEMENT.  This Agreement and the other agreements
referred to herein set forth the entire understanding of the parties hereto
relating to the subject matter hereof and thereof and supersede all prior
agreements and understandings among or between any of the parties relating to
the subject matter hereof and thereof.

     10.17  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 the 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.


                                      32.
<PAGE>

     The parties hereto have caused this Agreement to be executed and
delivered as of August 9, 1999.

                                        ZITEL CORPORATION,
                                        a California corporation

                                        By:  s/
                                           -----------------------------------
                                        ZM ACQUISITION CORP.,
                                        a California corporation

                                        By:  s/
                                           -----------------------------------
                                        MATRIDIGM CORPORATION,
                                        a California corporation

                                        By:  s/
                                           -----------------------------------

                                        DESIGNATED SHAREHOLDERS:

                                        ACS BRC HOLDINGS, INC.

                                        By:  s/
                                           -----------------------------------
                                        JBJ PARTNERS, LTD.

                                        By:  s/
                                           -----------------------------------
                                        LYNX VENTURE PARTNERS I, LLC

                                        By:  s/
                                           -----------------------------------

                                        s/
                                        --------------------------------------
                                        JAMES BRADY

                                        s/
                                        --------------------------------------
                                        HELEN BRADY

                                        s/
                                        --------------------------------------
                                        JAMES BRADY as Trustee of the
                                        Brady 1996 Living Trust dated
                                        3/26/96

                                        s/
                                        --------------------------------------
                                        HELEN BRADY as Trustee of the
                                        Brady 1996 Trust dated 3/26/96


                                     33.
<PAGE>

                                        s/
                                        --------------------------------------
                                        STEVE BRADY as Trustee of the
                                        Brady Children Trust dated
                                        Effective 5/2/96

                                        s/
                                        --------------------------------------
                                        FRANKLIN CHIANG

                                        s/
                                        --------------------------------------
                                        SUE-KEWN CHIANG

                                        s/
                                        --------------------------------------
                                        FRANKLIN C. CHIANG as Trustee
                                        of the Chiang 1997 Living Trust
                                        dated June 18, 1997

                                        s/
                                        --------------------------------------
                                        SUE-KEWN CHIANG as Trustee of
                                        the Chiang 1997 Living Trust
                                        dated June 18, 1997

                                        s/
                                        --------------------------------------
                                        FRANK ROSS as Trustee of the
                                        Dawn Constance Chiang,
                                        Grace Carina Chiang and
                                        Elizabeth Jen Chiang Trust


                                     34.
<PAGE>

                                   EXHIBIT A

                            DESIGNATED SHAREHOLDERS


NAME

BRC Holdings, Inc.

JBJ Partners, Ltd.

Lynx Ventures

James Brady

James Brady and Helen Brady as Trustees
of the Brady 1996 Living Trust

Steve Brady, as Trustee of the Brady
Children Trust

Franklin Chiang

Sue-Kewn Chiang

Franklin Chiang and Sue-Kewn Chiang as
Trustees of the Chiang 1997 Living Trust

Frank Ross as Trustee of the
Dawn Constance Chiang,
Grace Carina Chiang and
Elizabeth Jen Chiang Trust


<PAGE>

                                   EXHIBIT B

                              CERTAIN DEFINITIONS

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

     ACQUISITION TRANSACTION.  "Acquisition Transaction" shall mean any
transaction involving:

          (a)  the sale, license, disposition or acquisition of all or a
     material portion of the Company's business or assets;

          (b)  the issuance, disposition or acquisition of (i) any capital
     stock or other equity security of the Company (other than common stock
     issued to employees of the Company, upon exercise of Company Options or
     otherwise, in routine transactions in accordance with the Company's past
     practices), (ii) any option, call, warrant or right (whether or not
     immediately exercisable) to acquire any capital stock or other equity
     security of the Company (other than stock options granted to employees of
     the Company in routine transactions in accordance with the Company's past
     practices), or (iii) any security, instrument or obligation that is or
     may become convertible into or exchangeable for any capital stock or
     other equity security of the Company; or

          (c)  any merger, consolidation, business combination, reorganization
     or similar transaction involving the Company.

     AGREEMENT.  "Agreement" shall mean the Agreement and Plan of Merger and
Reorganization to which this Exhibit B is attached (including the Disclosure
Schedule), as it may be amended from time to time.

     COMPANY CONTRACT.  "Company Contract" shall mean any Contract:  (a) to
which the Company is a party; (b) by which the Company or any of its assets
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 PROPRIETARY ASSET.  "Company Proprietary Asset" shall mean any
Proprietary Asset owned by or licensed to the Company or otherwise used by
the Company.

     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, warranty,
insurance policy, benefit plan or legally binding commitment or undertaking of
any nature.

     DAMAGES.  "Damages" shall include any loss, damage, injury, decline in
value, lost opportunity, liability, claim, demand, settlement, judgment, award,
fine, penalty, Tax, fee (including reasonable attorneys' fees), charge, cost
(including costs of investigation) or expense of any nature.


                                      1.
<PAGE>

     DESIGNATED PARENT STOCK PRICE.  "Designated Parent Stock Price" shall be
the average of the closing sale prices of a share of Parent Common Stock as
reported on the NASDAQ National Market for each of the [ten] consecutive trading
days immediately preceding the Closing Date.

     DISCLOSURE SCHEDULE.  "Disclosure Schedule" shall mean the schedule
(dated as of the date of the Agreement) delivered to Parent on behalf of the
Company and the Designated Shareholders.

     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.

     GOVERNMENT BID.  "Government Bid" shall mean any quotation, bid or
proposal submitted to any Governmental Body or any proposed prime contractor
or higher-tier subcontractor of any Governmental Body.

     GOVERNMENT CONTRACT.  "Government Contract" shall mean any prime
contract, subcontract, letter contract, purchase order or delivery order
executed or submitted to or on behalf of any Governmental Body or any prime
contractor or higher-tier subcontractor, or under which any Governmental Body
or any such prime contractor or subcontractor otherwise has or may acquire
any right or interest.

     GOVERNMENTAL AUTHORIZATION.  "Governmental Authorization" shall mean
any: (a) permit, license, certificate, franchise, permission, 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).


                                      2.
<PAGE>

     KNOWLEDGE.  "Knowledge" means the actual current knowledge of any of the
executive officers of the Company, after reasonable review and inquiry of
appropriate employees of and consultants to the Company.

     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.  A violation or other matter will be deemed to
have a "Material Adverse Effect" on the Company if such violation or other
matter (considered together with all other matters that would constitute
exceptions to the representations and warranties set forth in the Agreement
or in the Designated Shareholders' Closing Certificate but for the presence
of "Material Adverse Effect" or other materiality qualifications, or any
similar qualifications, in such representations and warranties) would have a
material adverse effect on the Company's business, financial condition,
assets, liabilities, results of operations, financial performance or
prospects; provided, that neither (a) any violation or matter with a
financial effect on the Company which results in a loss to or payment by the
Company of less than $50,000 for any individual item or $250,000 in the
aggregate, (b) adverse conditions or events affecting the economy of the
United States generally, (c) adverse changes directly attributable to the
announcement and pendency of the transactions contemplated hereby, nor (d)
any failure to meet projected revenues, to the extent the failure is the
result of the Parent not meeting revenue projections provided to the Company
in writing, but only to the extent that such projections by Parent were
included in revenues projected by the Company, shall be deemed to have a
Material Adverse Effect.

     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, 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.


                                      3.
<PAGE>

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

     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.


                                      4.
<PAGE>

                                   EXHIBIT C


                          ARTICLES OF INCORPORATION
                                      OF
                          ZM ACQUISITION CORPORATION


                                      I.

     The name of this corporation is ZM Acquisition Corporation.

                                      II.

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

                                     III.

     The corporation is authorized to issue only one class of stock, to be
designated Common Stock.  The total number of shares of Common Stock presently
authorized is one hundred (100).

                                      IV.

     The liability of the directors of this corporation for monetary damages
shall be eliminated to the fullest extent permissible under California law.

     This corporation is authorized to provide indemnification of agents (as
defined in Section 317 of the California Corporations Code) for breach of duty
to the corporation and its shareholders through bylaw provisions or through
agreements with the agents, or through shareholder resolutions, or otherwise, in
excess of the indemnification otherwise permitted by Section 317 of the
Corporations Code, subject to the limits on such excess indemnification set
forth in Section 204 of the Corporations Code.

     Any repeal or modification of this Article shall only be prospective and
shall not affect the rights under this Article in effect at the time of the
alleged occurrence of any act or omission to act giving rise to liability or
indemnification.

                                      V.

      The name and address in the State of California of this corporation's
initial agent for service of process is:


                                       1.

<PAGE>

                        Anna M. McCann
                        Zitel Corporation
                        47211 Bayside Parkway
                        Fremont, California 94538

      IN WITNESS WHEREOF, for the purpose of forming this corporation under the
laws of the State of California, the undersigned, as sole incorporator of this
corporation, has executed these Articles of Incorporation this _____ day of
July, 1999.


                                       ------------------------------------
                                       JOHN L. CARDOZA
                                       Sole Incorporator


                                       2.

<PAGE>

                                   EXHIBIT D

Directors:     Asa W. Lanum
               Anna M. McCann
               Richard Ormond


Officers:      Chief Executive Officer: Richard Ormond
               Chief Financial Officer: Anna M. McCann
Secretary:     Anna M. McCann


                                       1.

<PAGE>

                                   EXHIBIT E

                              AFFILIATE AGREEMENT

     THIS AFFILIATE AGREEMENT ("Affiliate Agreement") is being executed and
delivered as of ______________, 1999 by _____________________________________
("Stockholder") in favor of and for the benefit of ZITEL CORPORATION, a
California corporation ("Parent").

                                   RECITALS

     A.   Stockholder is a stockholder of, MATRIDIGM CORPORATION, a California
corporation (the "Company").

     B.   Parent, the Company and ZM ACQUISITION CORPORATION, a wholly owned
subsidiary of Parent ("Merger Sub"), have entered into an Agreement and Plan of
Merger and Reorganization dated as of July ___, 1999 (the "Merger Agreement"),
providing for the merger of Merger Sub into the Company (the "Merger").  The
Merger Agreement contemplates that, upon consummation of the Merger, (i) holders
of shares of the capital stock of the Company will receive shares of common
stock of Parent ("Parent Common Stock") in exchange for their shares of capital
stock of the Company 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.

     C.   Stockholder understands that the Parent Common Stock being issued in
the Merger will be offered and sold pursuant to an exemption from the
registration requirements of the Securities Act of 1933, as amended (the
"Securities Act") pursuant to Section 3(a)(10) of the Securities Act, and that
Stockholder may be deemed an "affiliate" of Parent as such term is defined for
purposes of paragraphs (c) and (d) of Rule 145 under the Securities Act of 1933,
as amended (the "Securities Act").

                                  AGREEMENT

     Stockholder, intending to be legally bound, agrees as follows:

     1.   REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER.  Stockholder represents
and warrants to Parent as follows:

     (a)  Stockholder is the holder and "beneficial owner" (as defined in
Rule 13d-3 under the Securities Exchange Act of 1934, as amended) of the
number of outstanding shares of common stock of the Company set forth beneath
Stockholder's signature on the signature page hereof (the "Company Shares"),
and Stockholder 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.
Stockholder has the sole right to vote and to dispose of the Company Shares.


                                       1.

<PAGE>

     (b)  Stockholder does not own, of record or beneficially, directly or
indirectly, any securities of the Company other than the Company Shares.

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

     2.   LIMITATIONS ON TRANSFER.

          Stockholder agrees that Stockholder shall not effect any sale,
transfer or other disposition of any Parent Shares unless:

          (i)    such sale, transfer or other disposition is effected
pursuant to an effective registration statement under the Securities Act;

          (ii)   such sale, transfer or other disposition is made in
conformity with the requirements of Rule 145 under the Securities Act, as
evidenced by a broker's letter and a representation letter executed by
Stockholder (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 the registration requirements of the
Securities Act; or

          (iv)   an authorized representative of the SEC shall have rendered
written advice to Stockholder 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.

          Stockholder acknowledges and agrees that (a) stop transfer
instructions will be given to Parent's transfer agent with respect to the Parent
Shares, and (b) 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 WERE ISSUED IN A
          TRANSACTION TO WHICH RULE 145(d) OF THE SECURITIES ACT OF 1933
          APPLIES AND MAY NOT BE OFFERED, SOLD OR OTHERWISE TRANSFERRED,
          ASSIGNED, PLEDGED OR HYPOTHECATED EXCEPT IN ACCORDANCE WITH THE


                                       2.

<PAGE>

          PROVISIONS OF SUCH RULE AND IN ACCORDANCE WITH THE TERMS OF AN
          AGREEMENT DATED AS OF _____________, 1999, BETWEEN THE REGISTERED
          HOLDER HEREOF AND THE ISSUER, A COPY OF WHICH IS ON FILE AT THE
          PRINCIPAL OFFICES OF THE ISSUER."

     4.   INDEPENDENCE OF OBLIGATIONS.  The covenants and obligations of
Stockholder set forth in this Affiliate Agreement shall be construed as
independent of any other agreement or arrangement between Stockholder, on the
one hand, and the Company or Parent, on the other.  The existence of any claim
or cause of action by Stockholder against the Company or Parent shall not
constitute a defense to the enforcement of any of such covenants or obligations
against Stockholder.

     5.   SPECIFIC PERFORMANCE.  Stockholder agrees that in the event of any
breach or threatened breach by Stockholder of any covenant, obligation or other
provision contained in this Affiliate 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.  Stockholder further
agrees that neither Parent nor any other person or entity shall be required to
obtain, furnish or post any bond or similar instrument in connection with or as
a condition to obtaining any remedy referred to in this Section 5, and
Stockholder irrevocably waives any right he may have to require the obtaining,
furnishing or posting of any such bond or similar instrument.

     6.   OTHER AGREEMENTS.  Nothing in this Affiliate Agreement shall limit any
of the rights or remedies of Parent under the Merger Agreement, or any of the
rights or remedies of Parent or any of the obligations of Stockholder under any
agreement between Stockholder and Parent or any certificate or instrument
executed by Stockholder in favor of Parent; and nothing in the Merger Agreement
or in any other agreement, certificate or instrument shall limit any of the
rights or remedies of Parent or any of the obligations of Stockholder under this
Affiliate Agreement.

     7.   NOTICES.  Any notice or other communication required or permitted to
be delivered to Stockholder or Parent under this Affiliate Agreement shall be in
writing and shall be deemed properly delivered, given and received when
delivered 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):

          IF TO PARENT:

               Zitel Corporation
               47211 Bayside Parkway
               Fremont, CA  94538
               Attn:  Chief Executive Officer
               Fax:  (510) 440-9696


                                       3.

<PAGE>

          IF TO STOCKHOLDER:

               ______________________________
               ______________________________
               ______________________________
               Attn:_________________________
               Fax: (___) ___________________

     8.   SEVERABILITY.  If any provision of this Affiliate 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 Affiliate Agreement.
Each provision of this Affiliate Agreement is separable from every other
provision of this Affiliate Agreement, and each part of each provision of this
Affiliate Agreement is separable from every other part of such provision.

     9.   APPLICABLE LAW; JURISDICTION.   THIS AFFILIATE AGREEMENT IS MADE
UNDER, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF
CALIFORNIA APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED SOLELY THEREIN,
WITHOUT GIVING EFFECT TO PRINCIPLES OF CONFLICTS OF LAW.  In any action between
or among any of the parties, whether arising out of this Affiliate Agreement or
otherwise, (a) each of the parties irrevocably and unconditionally consents and
submits to the exclusive jurisdiction and venue of the state and federal courts
located in the County of Santa Clara, State of California; (b) if any such
action is commended in a state court, then, subject to applicable law, no party
shall object to the removal of such action to any federal court located in the
Northern District of California; (c) each of the parties irrevocably waives the
right to trial by jury; and (d) each of the parties irrevocably consents to
service of process by first class certified mail, return receipt requested,
postage prepared, to the address at which such party is to receive notice in
accordance with Section 7.

     10.  WAIVER; TERMINATION.  No failure on the part of Parent to exercise any
power, right, privilege or remedy under this Affiliate Agreement, and no delay
on the part of Parent in exercising any power, right, privilege or remedy under
this Affiliate 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 Affiliate Agreement, or any power, right,
privilege or remedy under this Affiliate Agreement, unless the waiver of such
claim, power, right, privilege or remedy is


                                       4.

<PAGE>

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.  If the Merger
Agreement is terminated, this Affiliate Agreement shall thereupon terminate.

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

     12.  FURTHER ASSURANCES.  Stockholder 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 Affiliate Agreement.

     13.  ENTIRE AGREEMENT.  This Affiliate Agreement, the Merger Agreement and
the other agreements and certificate entered into in connection with the Merger
Agreement between Stockholder and Parent collectively set forth the entire
understanding of Parent and Stockholder relating to the subject matter hereof
and thereof and supersede all other prior agreements and understandings between
Parent and Stockholder relating to the subject matter hereof and thereof.

     14.  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).

     15.  AMENDMENTS.  This Affiliate 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 Stockholder.

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

     17.  BINDING NATURE.  Subject to Section 16, this Affiliate Agreement will
inure to the benefit of Parent and its successors and assigns and will be
binding upon Stockholder and Stockholder's representatives, executors,
administrators, estate, heirs, successors and assigns.

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


                                       5.

<PAGE>

     Stockholder has executed this Affiliate Agreement on ___________ __, 1999.

                                       ----------------------------------------
                                                      (SIGNATURE)

                                       ----------------------------------------
                                                      (Print Name)


NUMBER OF OUTSTANDING SHARES OF
COMMON STOCK AND PREFERRED STOCK
OF THE COMPANY HELD BY STOCKHOLDER:

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


                                       6.

<PAGE>

                                   EXHIBIT F

                    PERSONS TO EXECUTE AFFILIATE AGREEMENTS

1.   Each of the following directors of the Company:

          James T. Brady
          Franklin C. Chiang
          Jack H. King
          Henry C. Harris
          Anna M. McCann
          Robert J. Luth
          Richard W. Ormond

2.   JBJ Partners, Ltd.

3.   James Brady and Helen Brady, as trustees of the Brady 1996 Living Trust

4.   Franklin Chiang and Su-Kewn Chiang, as trustees of the Chiang 1997 Living
     Trust

5.   Zitel Corporation


                                       1.

<PAGE>

                                   EXHIBIT G

                                GENERAL RELEASE

     THIS GENERAL RELEASE ("General Release") is being executed and delivered
as of ____________, 1999, by and among the parties who are "Designated
Shareholders" as defined in the Merger Agreement (as defined below) (all of
whom are referred to collectively as the "Shareholders," and each of whom is
referred to individually as a "Shareholder"), MATRIDIGM CORPORATION, a
California corporation ("Target"), ZITEL CORPORATION, a California
corporation ("Purchaser").

                                   RECITALS

     A.   Contemporaneously with the execution and delivery of this General
Release, certain of the Shareholders are exchanging their shares of the capital
stock of Target for capital stock of Purchaser pursuant to an Agreement and Plan
of Merger and Reorganization dated as of July __, 1999 (the "Merger Agreement").
Words capitalized but not defined in this General Release have the meanings
assigned to them in the Merger Agreement.

     B.   To induce Purchaser and the Shareholders to enter into the Merger
Agreement and as a condition to the parties' consummation of the transactions
contemplated by the Merger Agreement, the Parties have agreed to enter into and
deliver this General Release.

     C.   This Release is being delivered pursuant to Section 6.5 (b) of the
Merger Agreement.

                                  AGREEMENT

     In consideration of the recitals, the Agreements contained in this General
Release and the Merger Agreement, and other good and valuable consideration, the
receipt and sufficiency of which are acknowledged, pursuant to the terms of
Merger Agreement, the Parties agree as follows:

     1.   RELEASE BY THE SHAREHOLDERS.  Each Shareholder, on its own behalf and
on behalf of its successors and assigns does hereby generally, irrevocably,
unconditionally and completely release and forever discharge Target and
Purchaser and their respective successors, assigns, officers, directors,
employees and agents (collectively, the "PURCHASER RELEASE PARTIES") from any
and all claims, counterclaims, set-offs, debts, demands, causes of actions,
obligations, remedies, suits, damages and liabilities (collectively,
"SHAREHOLDER CLAIMS"), whether now known, suspected, or claimed, whether arising
under common law, in equity, or under statute, that such Shareholder ever had,
now has, or in the future may claim to have against any of the Purchaser Release
Parties and that are directly attributable to events or circumstances occurring
on or before the date of this General Release, excluding any claims (i) arising
from any representation, warranty or covenant of the Purchaser Released Parties
either set forth in the Merger Agreement or in any agreement executed in
connection therewith, or (ii) scheduled on Exhibit A attached hereto.


                                       1.

<PAGE>

     2.   RELEASE BY TARGET AND PURCHASER.  Target and Purchaser, for themselves
and their successors and assigns forever, do hereby unconditionally and
irrevocably, fully and forever, compromise, settle, remise, acquit, release and
discharge each Shareholder and his successors, assigns, officers, directors,
employees and agents (collectively, the "SHAREHOLDER RELEASE PARTIES") from any
and all claims, counterclaims, set-offs, debts, demands, causes of action,
obligations, remedies, suits, damages and liabilities (i) based on any breach or
alleged breach by the Shareholder Release Parties of any fiduciary duty owed to
the Company by such Shareholder Release Party, or based on any actual or alleged
waste of corporate assets of the Company in such parties' capacity as a
shareholder, officer, director or employee of the Company, or (ii) set forth on
EXHIBIT B attached hereto (collectively, the "PURCHASER RELEASED CLAIMS"),
whether now known, suspected, or claimed, whether arising under common law, in
equity, or under statute, that Target or Purchaser or their successors or
assigns ever had, now have, or in the future make claim to have against any of
the Shareholder Release Parties and that are directly attributable to events or
circumstances occurring on or before the date of this General Release.

     3.   CIVIL CODE SECTION 1542.  Each party releasing any claims hereunder
(each, a "Releasor") (a) represents, warrants and acknowledges that such
Releasor has been fully advised by his attorney of the contents of Section 1542
of the Civil Code of the State of California, and (b) hereby expressly waives
the benefits thereof and any rights such Releasor may have thereunder.  Section
1542 of the Civil Code of the State of California provides as follows:

               "A general release does not extend to claims which the creditor
          does not know or 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."

Each Releasor also hereby waives the benefits of, and any rights such Releasor
may have under, any statute or common law principle of similar effect in any
jurisdiction.

     4.   REPRESENTATIONS AND WARRANTIES.  Each Releasor represents and warrants
that:

          a.   such Releasor has not assigned, transferred, conveyed or
otherwise disposed of any Claim against any party being released hereunder
(each, a "Releasee") of the Releasees, or any direct or indirect interest in any
such Claim, in whole or in part;

          b.   to the best of such Releasor's knowledge, no other person or
entity has any interest in any of the Released Claims;

          c.   this General Release has been duly and validly executed and
delivered by such Releasor; and

          d.   this General Release is a valid and binding obligation of such
Releasor, and is enforceable against such Releasor in accordance with its terms;


                                       2.

<PAGE>

     5.   RELEASE NOT ADMISSION.  The execution of this General Release does not
constitute in any manner whatsoever an admission of liability on the part of any
party for any matters covered by this General Release, and all such liability is
specifically denied.

     6.   ADDITIONAL RIGHTS AND OBLIGATIONS.  This General Release is being
entered into pursuant to and subject to the terms and conditions of the Merger
Agreement.  Additional rights and obligations of the parties are expressly
provided for in the Merger Agreement and the agreements executed in connection
therewith, and the execution and delivery of this General Release will not
impair or diminish any rights or obligations of any party to the Merger
Agreement set forth in the Merger Agreement or any agreement executed in
connection therewith.

     7.   REASONABLE EFFORTS; COOPERATION.  The parties will use reasonable
efforts to take, or cause to be taken, all actions and to do, or cause to be
done, all things reasonably necessary, proper or advisable to consummate and
make effective as promptly as practicable the provisions of this General Release
and to cooperate with each other in connection with the foregoing.

     8.   MISCELLANEOUS.

          a.   This General Release sets forth the entire understanding of the
parties relating to the subject matter hereof and supersedes all prior
agreements and understandings among or between any of the Releasors and
Releasees relating to the subject matter hereof.

          b.   If any provision of this General Release or any part of any such
provision is held under any circumstances to be invalid or unenforceable in any
jurisdiction, then (i) 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, (ii) 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 (iii) such invalidity or
enforceability 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 General Release.  If any provision
of this General Release or any part of such provision is held to be
unenforceable against any Releasor, then the unenforceability of such provision
or part thereof against such Releasor shall not affect the enforceability
thereof against any other Releasor.  Each provision of this General Release is
separable from every other provision of this General Release, and each part of
each provision of this General Release is separable from every other part of
such provision.

          c.   This General Release 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).

          d.   Each party to this General Release hereby irrevocably submits to
the exclusive jurisdiction of the state and federal courts located in the county
of Santa Clara, State of California, for the purposes of any action arising out
of this General Release or any subject


                                       3.

<PAGE>

matter, brought by any other party.  To the extent permitted by applicable
law, each party hereby waives and agrees not to assert, by way of motion, as
a defense, or otherwise in any such action, any claim that (i) it is not
subject to the jurisdiction of the above-named courts, (ii) the action is
brought in an inconvenient form, (iii) it is immune from any legal process
with respect to itself or its property, (iv) the venue of the suit, action or
proceeding is improper, or (v) this General Release or its subject matter may
not be enforced by such courts.

          e.   This General Release may be executed in several counterparts,
each of which shall constitute an original and all of which, when taken
together, shall constitute one agreement.

          f.   Each Releasor shall execute and/or cause to be delivered to each
Releasee such instruments and other documents, and shall take such other
actions, as such Releasee may reasonably request for the purpose of carrying out
or evidencing any of the actions contemplated by this General Release.

          g.   If any legal action or other legal proceeding relating to this
General Release or the enforcement of any provision hereof is brought by any
Releasor or Releasee, the prevailing party shall be entitled to recover
reasonable attorneys' fees, costs and disbursements to the extent actually
incurred (in addition to any other relief to which the prevailing party may be
entitled).

          h.   This General Release shall be effective with respect to, and
shall be binding upon and enforceable against, each Releasor who executes this
General Release, regardless of whether any of the other Releasors executes this
General Release.

          i.   Whenever required by the context, the singular number shall
include the plural, and vice versa; the masculine gender shall include the
feminine and neuter genders; and the neuter gender shall include the masculine
and feminine genders.

          j.   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 General Release.

          k.   As used in this General Release, the words "include" and
"including," and variations thereof, shall not be deemed to be terms of
limitation, and shall be deemed to be followed by the words "without
limitation."



                            (SIGNATURE PAGE FOLLOWS)


                                       4.

<PAGE>

     IN WITNESS WHEREOF, the parties have caused this General Release to be
executed as of the date first above written.

                                       SHAREHOLDERS:

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

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

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

                                       MATRIDIGM CORPORATION:

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

                                       ZITEL CORPORATION:

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


                                       5.

<PAGE>

                                   EXHIBIT A

     1.   Compensation (including salary, bonuses, stock option plans, severance
benefits, health benefits, 401(k) contributions) owing to each Shareholder as of
the date hereof or accruing after the date hereof.

     2.   Expenses incurred in the ordinary course of business by Shareholder on
Target's behalf.

     3.   Claims or rights arising under the Merger Agreement or any agreement
executed in connection therewith.

     4.   Claims or rights of indemnification arising under Target's Articles of
Incorporation, Bylaws or Indemnification Agreements with its officers, directors
and employees.

     5.   Claims or rights under Target's directors' and officers liability
insurance policies, or successor policies maintained by Target or the Purchaser
providing benefits to current and/or former officers, directors or employees of
Target or the Purchaser.

     6.   Such other matters as may be approved by Purchaser.


                                       1.

<PAGE>

                                   EXHIBIT B

     1.   All rights of Target under all agreements relating to proprietary
information of Target.

     2.   All rights of Target under all agreements conveying interest in
patents, trade secrets and other forms of intellectual property to Target.

     3.   All rights arising under the Merger Agreement and any agreements
executed in connection therewith.

     4.   All advances and loans by Target or Purchaser.


                                       1.

<PAGE>

                                   EXHIBIT H

                       OPINION OF COUNSEL TO THE COMPANY


1.   The Company has been duly incorporated and is a validly existing
     corporation in good standing under the laws of the State of California.

2.   The Company has the requisite corporate power to enter into, execute,
     deliver and perform its obligations under the Merger Agreement.

3.   The Merger Agreement and Agreement of Merger have been duly and validly
     authorized, executed and delivered by the Company and constitutes valid and
     binding agreements of the Company enforceable against the Company in
     accordance with their respective terms, except as enforcement may be
     limited by applicable bankruptcy, insolvency, reorganization, arrangement,
     moratorium or other similar laws affecting creditors' rights and remedies
     generally, and subject, as to enforceability, to general principles of
     equity, including principles of commercial reasonableness, good faith and
     fair dealing (regardless of whether enforcement is sought at law or in
     equity) and except that rights to indemnification thereunder may be limited
     by federal or state securities laws or public policy relating thereto.

4.   The Company's authorized capital stock consists of _____ (a) one hundred
     million (100,000,000) shares of Common Stock, without par value, of which
     _____ (_____) shares are issued and outstanding, and (b) thirty million
     (30,000,000) shares of Preferred Stock, without par value, of which:
     (i) nine million six hundred thousand (9,600,000) shares have been
     designated Series A Preferred Stock, without par value, of which nine
     million six hundred thousand (9,600,000) shares are issued and outstanding;
     (ii) two million (2,000,000) shares have been designated Series B Preferred
     Stock, none of which are issued and outstanding; one million five hundred
     thousand (1,500,000) shares have been designated Series C Preferred Stock,
     none of which are issued and outstanding; and (d) five million (5,000,000)
     shares of which have been designated Series D Preferred Stock, none of
     which are issued and outstanding.  The outstanding shares of Common Stock
     have been duly authorized and validly issued and are fully paid and
     nonassessable.  To the best of our knowledge, there are no options,
     warrants, conversion privileges, preemptive rights or other rights
     presently outstanding to purchase any of the authorized but unissued
     capital stock of the Company, other than the conversion privileges of the
     Series A Preferred Stock.


                                       1.

<PAGE>

5.   To the best of our knowledge, there is no action, proceeding or
     investigation pending or overtly threatened against the Company before any
     court or administrative agency that questions the validity of the
     Agreement.

6.   All consents, approvals or filings with any federal or California
     regulatory authority or governmental body required for the consummation by
     the Company of the transactions contemplated by the Merger Agreement, have
     been made or obtained except for the filing of the Agreement of Merger (and
     the officers' certificates thereto).


                                       2.

<PAGE>

                                   EXHIBIT I

                               CERTAIN EMPLOYEES



Richard Ormond

Franklin Chiang

Jill Goldberg

David Nowlen

Damon Finney


                                       1.

<PAGE>

                                   EXHIBIT J

                          OPINION OF COUNSEL TO PARENT


1.   Parent and Merger Sub have been duly incorporated and are validly existing
     corporations in good standing under the laws of the State of California.

2.   Each of Parent and Merger Sub has the requisite corporate power to own its
     property and assets and to conduct its business as it is currently being
     conducted.

3.   The Merger Agreement and Agreement of Merger have been duly and validly
     authorized, executed and delivered by the Company and Merger Sub and
     constitute valid and binding agreements of the Company and Merger Sub
     enforceable against the Company and Merger Sub in accordance with their
     respective terms, except as enforcement may be limited by applicable
     bankruptcy, insolvency, reorganization, arrangement, moratorium or other
     similar laws affecting creditors' rights, and subject to general equity
     principles and to limitations on availability of equitable relief,
     including specific performance.

4.   The Shares of Common Stock issuable upon effectiveness of the Merger have
     been duly authorized, and upon issuance and delivery with the terms of the
     Merger Agreement, will be validly issued, outstanding, fully paid and
     nonassessable.

5.   To the best of our knowledge, there is no action, claim, proceeding, suit
     or investigation pending or overtly threatened against the Company before
     any court or administrative agency that questions the validity of the
     Merger Agreement.


                                       1.




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