CONTROL DATA SYSTEMS INC
SC 14D9, 1997-07-15
COMPUTER INTEGRATED SYSTEMS DESIGN
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                              (CONTROL DATA LOGO)

                                                                  July 15, 1997

Dear Stockholder:

     I am pleased to inform you that on July 8, 1997, Control Data Systems, Inc.
("Control  Data")  entered  into an  Agreement  and Plan of Merger (the  "Merger
Agreement")  with  CDSI  Holding  Corporation  ("Parent")  and its  wholly-owned
subsidiary,  CDSI  Acquisition  Corp. (the  "Purchaser"),  that provides for the
acquisition of Control Data by Parent through the Purchaser at a price of $20.25
per share. Under the terms of the Merger Agreement,  the Purchaser has commenced
today a cash tender  offer to purchase  all Control Data common stock at a price
of $20.25 per share,  net cash to  tendering  stockholders.  The tender offer is
currently scheduled to expire at 12:00 midnight on Monday, August 11, 1997.

     Following the successful  completion of the tender offer,  upon approval by
stockholder  vote, if required,  the Purchaser  will be merged into Control Data
and all shares not  purchased  in the tender  offer  (other  than shares held by
dissenting  stockholders,  if  applicable)  will be converted  into the right to
receive in cash the same price per share as is paid in the tender offer, without
interest.

     YOUR BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT,  THE
TENDER OFFER,  AND THE MERGER AND HAS DETERMINED THAT THE TERMS OF THE OFFER AND
THE MERGER ARE FAIR TO AND IN THE BEST  INTERESTS OF CONTROL DATA  STOCKHOLDERS.
ACCORDINGLY,  THE BOARD OF DIRECTORS UNANIMOUSLY  RECOMMENDS THAT YOU ACCEPT THE
TENDER OFFER AND TENDER YOUR CONTROL DATA STOCK TO THE PURCHASER PURSUANT TO THE
TENDER OFFER.

     In arriving at its  recommendation,  the Board of  Directors  gave  careful
consideration to a number of factors that are described in the enclosed Schedule
14D-9,  including,  among other things,  the opinion of Cowen & Company that the
financial  terms of the tender offer and the merger are fair to the Control Data
stockholders  (other than Parent and its  affiliates)  from a financial point of
view as of the date of such opinion.

     Also  accompanying  this  letter  is a copy  of the  Purchaser's  Offer  to
Purchase and related  materials,  including a Letter of  Transmittal  for use in
tendering  shares.  These  documents  set forth the terms and  conditions of the
Purchaser's  offer and provide  instructions as to how to tender your shares. We
urge you to read each of the enclosed materials carefully.

                                        Sincerely,

                                        CONTROL DATA SYSTEMS, INC.

                                        /s/ James E. Ousley

                                        James E. Ousley
                                        President and Chief Executive Officer

Enclosures


<PAGE>


                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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

                                 SCHEDULE 14D-9

                SOLICITATION/RECOMMENDATION STATEMENT PURSUANT TO
             SECTION 14(D)(4) OF THE SECURITIES EXCHANGE ACT OF 1934

                           CONTROL DATA SYSTEMS, INC.
- --------------------------------------------------------------------------------
                           (Name of Subject Company)

                           CONTROL DATA SYSTEMS, INC.
- --------------------------------------------------------------------------------
                      (Name of Person(s) Filing Statement)

                          COMMON STOCK, $.01 PAR VALUE
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                  21238F 10 6
- --------------------------------------------------------------------------------
                     (CUSIP Number of Class of Securities)

                                 JAMES E. OUSLEY
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                           CONTROL DATA SYSTEMS, INC.
                           4201 LEXINGTON AVENUE NORTH
                        ARDEN HILLS, MINNESOTA 55126-6198
                                 (612) 415-3001
- --------------------------------------------------------------------------------
       (Name, address and telephone number of person authorized to receive
     notice and communications on behalf of the person(s) filing statement)

                                    COPY TO:
                              KEITH A. LIBBEY, ESQ.
                            FREDRIKSON & BYRON, P.A.
                          900 SECOND AVENUE, SUITE 1100
                              MINNEAPOLIS, MN 55402
                                 (612) 347-7010


<PAGE>


                                  INTRODUCTION

     This Solicitation/Recommendation  Statement on Schedule 14D-9 relates to an
offer by CDSI Acquisition Corp., a Delaware corporation (the "Purchaser"), which
is a wholly-owned subsidiary of CDSI Holding Corporation, a Delaware corporation
("Parent"),  to purchase  all of the Shares (as defined  below) of Control  Data
Systems,  Inc.,  a Delaware  corporation  (the  "Company"  or  "Control  Data").
Capitalized  terms used herein and not otherwise  defined  herein shall have the
meaning  assigned to such terms in the Offer to Purchase  dated July 15, 1997, a
copy of which is filed as Exhibit (a)(1) hereto (the "Offer to Purchase").

ITEM 1. SECURITY AND SUBJECT COMPANY

     This Statement  relates to the common stock,  $.01 par value per share (the
"Shares"), of Control Data Systems, Inc., a Delaware corporation and the subject
company.  The  address  of the  Company's  principal  executive  offices is 4201
Lexington Avenue North, Arden Hills, Minnesota 55126.

ITEM 2. TENDER OFFER OF THE BIDDER

     This  Statement  relates to the tender  offer  described  in a Tender Offer
Statement on Schedule 14D-1 (the "Schedule 14D-1") dated July 15, 1997, filed by
CDSI  Acquisition  Corp.,  a  Delaware   corporation  (the  "Purchaser")  and  a
wholly-owned  subsidiary  of CDSI Holding  Corporation,  a Delaware  corporation
("Parent")   (collectively  referred  to  as  the  "Bidder"),  to  purchase  all
outstanding  Shares  for cash at $20.25  per  share,  net to the seller in cash,
without interest,  upon the terms and subject to the conditions set forth in the
Offer to Purchase  and the related  Letter of  Transmittal  (which  collectively
constitute the "Offer"), copies of which are filed as Exhibits (a)(1) and (a)(2)
hereto, respectively.  The principal executive offices of each of Parent and the
Purchaser are located at 1013 Centre Road, Wilmington, Delaware 19805.

     The  Purchaser  and Parent have been  organized at the  direction of Welsh,
Carson, Anderson & Stowe VII, L.P., a Delaware limited partnership ("WCAS VII"),
and WCAS Capital  Partners III, L.P., a Delaware limited  partnership  ("WCAS CP
III"), to effect the transactions described herein. WCAS VII and WCAS CP III are
investment   partnerships  affiliated  with  Welsh,  Carson,  Anderson  &  Stowe
("WCAS"),  a private equity investment firm principally  engaged in the business
of  investing  in and  acquiring  companies in the  healthcare  and  information
processing industries.

     The Offer is being made  pursuant to the Agreement and Plan of Merger dated
as of July 8, 1997 (the "Merger  Agreement"),  among Parent, the Purchaser,  and
the Company.  A copy of the Merger  Agreement is filed as Exhibit  (c)(1) hereto
and is incorporated herein by reference in its entirety.  Pursuant to the Merger
Agreement,  following  the  consummation  of the Offer and the  satisfaction  or
waiver of certain  conditions,  the  Purchaser  will be merged with and into the
Company (the "Merger").  In the Merger,  each outstanding  Share (other than the
Company's or any  subsidiary's  treasury Shares or Shares owned by Parent or the
Purchaser or by  stockholders,  if any, who properly  exercise  appraisal rights
under  Delaware  law) will be  converted  into the right to receive an amount in
cash equal to the price per Share paid pursuant to the Offer,  without  interest
thereon. The Merger Agreement is summarized in Item 3 of this Statement.

ITEM 3. IDENTITY AND BACKGROUND

     (a) The name and address of the  Company,  which is the person  filing this
Statement, is as set forth in Item 1, above.

     (b)(1)  Certain  contracts,  agreements,  arrangements  and  understandings
between the Company or its affiliates and its executive officers,  directors and
affiliates  are  described  in the  Information  Statement  attached  as Annex A
hereto, and incorporated herein by reference.

     (2) Parent,  the  Purchaser  and the Company  have  entered into the Merger
Agreement,  a copy of which is filed with this  Statement as Exhibit  (c)(1) and
incorporated herein by reference.

                                        1


<PAGE>


     MERGER AGREEMENT

     The following is a summary of certain  provisions of the Merger  Agreement.
Such summary is qualified in its entirety by reference to the Merger Agreement.

     The Offer. The Offer has been commenced  pursuant to the Merger  Agreement.
The  obligation  of the  Purchaser  to accept  for  payment  and pay for  Shares
tendered  pursuant to the Offer is subject to the  satisfaction or waiver of the
condition that  stockholders  of the Company  validly tender and do not withdraw
prior to the  expiration of the Offer that number of Shares which  represents at
least 51  percent  of the  Shares  outstanding  on a  fully-diluted  basis  (the
"Minimum  Condition"),  the  expiration or  termination  of all waiting  periods
imposed  by the HSR Act and  certain  other  conditions  that are  described  in
Section 18 of the Offer to Purchase  ("Certain  Conditions  of the Offer").  The
Purchaser has agreed not to change the form of consideration to be paid pursuant
to the Offer,  decrease the price per Share of the Offer or the number of Shares
sought in the Offer or impose any  condition  to the Offer in  addition to those
described  in Section 18 of the Offer to Purchase  ("Certain  Conditions  of the
Offer"),  but may waive any of the  conditions to the Offer or change any of the
other terms or conditions of the Offer in its sole discretion.

     Initially,  the Offer will expire 20 business  days after it is  commenced.
The Purchaser has agreed,  subject to the terms and conditions of the Offer,  to
accept for payment and pay for all Shares  validly  tendered  and not  withdrawn
pursuant  to the  Offer  promptly  after the  expiration  of the  Offer.  If all
conditions  of the Offer have not been  satisfied  or, to the extent  permitted,
waived by the Purchaser as of any scheduled  expiration  date, the Purchaser may
or, if required to do so by law, will extend the Offer from time to time.

     The  Company  has been  advised  that all of its  directors  and  executive
officers  intend either to tender their Shares  pursuant to the Offer or to vote
in favor of the Merger.

     Directors.   The  Merger  Agreement  provides  that,   effective  upon  the
acceptance for payment by the Purchaser of a majority of the outstanding  Shares
pursuant to the Offer (and deposit with the  Depositary  of funds  sufficient to
make payment for such  Shares),  the  Purchaser  has the right to designate  the
number of directors,  rounded up to the next whole number,  on the Company Board
equal to the  product of the number of  directors  on the Company  Board  (after
giving  effect to any required  increase in the size of the Board) and the ratio
that the number of Shares  purchased by the Purchaser  bears to the total number
of Shares then outstanding.  The Company has agreed, subject to Section 14(f) of
the Exchange  Act, to take all actions  necessary to cause such  designees to be
elected or appointed to the Company  Board,  including by increasing the size of
the Company Board and securing the  resignations  of such number of directors as
is necessary to provide the  Purchaser  with such level of  representation.  The
Company  has  further  agreed  to use its  best  efforts  to  cause  individuals
designated by the Purchaser to constitute the same percentage, on each committee
of the Company  Board and on the board of  directors of each  subsidiary  of the
Company,  that  they  represent  on  the  Company  Board.   Notwithstanding  the
foregoing,  at all  times  prior  to the  effective  time  of  the  Merger  (the
"Effective  Time") at least two directors on the Company Board will be directors
in office as of the date of the Merger  Agreement  who are not  employees of the
Company or any of its subsidiaries or affiliates of Parent or the Purchaser.

     In  connection  with  the foregoing, the Purchaser has provided the Company
with  information  concerning Messrs. Patrick J. Welsh, Thomas E. McInerney, and
Rudolph E. Rupert, for inclusion in this Statement.

     The Merger. The Merger Agreement provides that as soon as practicable after
the  satisfaction or waiver (if permissible) of the conditions to the Merger and
in accordance with the relevant  provisions of the Delaware General  Corporation
Law (the "DGCL"),  the Purchaser will be merged with and into the Company.  As a
result of the Merger,  the separate  corporate  existence of the Purchaser  will
cease and the Company will continue as the Surviving Corporation and will become
a wholly-owned subsidiary of Parent.

     Conversion  of  Securities.  At the Effective  Time,  each Share issued and
outstanding  immediately prior to the Effective Time (other than Shares owned by
Parent,  the Purchaser or any subsidiary  thereof or held in the treasury of the
Company  or any  subsidiary  of the  Company  and  other  than  Shares  held  by
stockholders

                                        2


<PAGE>


who shall have properly  demanded and perfected  appraisal  rights under Section
262 of the DGCL) will be canceled and converted at the  Effective  Time into the
right to receive  an amount in cash,  without  interest,  equal to $20.25 or any
higher price paid for each Share in the Offer (the "Merger Consideration").

     The  Purchaser or the  designated  paying agent shall be entitled to deduct
and withhold from the  consideration  otherwise  payable  pursuant to the Merger
Agreement to any holder of Shares such amounts that the  Purchaser or the paying
agent is  required  to deduct and  withhold  with  respect to the making of such
payment  under the  Internal  Revenue  Code of 1986,  as amended,  the rules and
regulations promulgated thereunder or any other applicable law.

     Pursuant to the Merger  Agreement,  each share of common  stock,  par value
$.01 per share, of the Purchaser issued and outstanding immediately prior to the
Effective Time shall be automatically converted into and become at the Effective
Time one share of common stock of the Surviving Corporation.

     Options.  The Merger Agreement provides for the acceleration of the vesting
of all  unvested  stock  options  outstanding  under the  Company's  1992 Equity
Incentive  Plan (the  "Company  Stock  Option  Plan")_so  that each holder of an
option  thereunder  will be  entitled  to receive  from the  Company,  as of the
Effective  Time,  for each Share  subject to such  option,  an amount in cash in
cancellation  of  such  option  equal  to the  excess,  if  any,  of the  Merger
Consideration  over the per Share  exercise  price of such  option,  subject  to
applicable withholding, if any.

     Pursuant to the Merger Agreement,  immediately prior to the Effective Time,
all options  outstanding  under the Company's  1993 Employee Stock Purchase Plan
(the "Company  Stock Purchase  Plan") shall become  exercisable to the extent of
payroll  deductions  accumulated  by  participants  as of such  date,  and  each
participant shall be deemed to have purchased the number of whole Shares subject
to the options held by such participant at a per Share price determined pursuant
to the provisions of the Company Stock Purchase Plan, and each participant shall
receive a cash payment equal to the balance, if any, of such accumulated payroll
deductions  remaining  after  the  deemed  purchase  of such  Shares.  As of the
Effective Time, each participant  under such plan shall receive,  for each Share
such   participant   is  deemed  to  have  purchased   thereunder,   the  Merger
Consideration.

     The Company Stock Option Plan and the Company  Stock  Purchase Plan and all
options issued and  outstanding  thereunder  will terminate  effective as of the
Effective Time.

     Directors and Officers; Certificate of Incorporation and Bylaws. The Merger
Agreement provides that the directors of the Purchaser  immediately prior to the
Effective Time will be the initial  directors of the Surviving  Corporation  and
that the officers of the Company immediately prior to the Effective Time will be
the  initial  officers of the  Surviving  Corporation,  until  their  respective
successors are duly elected and qualified.  The Merger Agreement  provides that,
at the  Effective  Time,  the  Certificate  of  Incorporation  and Bylaws of the
Purchaser  will  become  the  Certificate  of  Incorporation  and  Bylaws of the
Surviving Corporation.

     Approvals Required under the DGCL and the Company's Restated Certificate of
Incorporation.  Pursuant to the DGCL and the Company's  Restated  Certificate of
Incorporation,  the  affirmative  vote of a majority of the  outstanding  Shares
entitled to vote  thereon is required  to approve the Merger  Agreement  and the
Merger.

     Representations  and  Warranties.  The Merger  Agreement  contains  various
customary representations and warranties of the parties thereto including, among
others, representations by the Company, Parent and the Purchaser as to corporate
status and the  enforceability  of the Merger Agreement  against each such party
and by the Company as to its  capitalization,  compliance with law, the accuracy
of  financial  statements  and filings  with the  Commission  and the absence of
certain  material  adverse changes or events  concerning the Company's  business
since December 31, 1996.

     Stockholders'  Meeting. The Merger Agreement provides that the Company will
take all action  necessary to call,  give notice of and convene a meeting of its
stockholders  (the  "Stockholders'  Meeting")  to  consider  and  vote  upon the
approval  and  adoption  of the  Merger  Agreement  and  the  Merger  as soon as
reasonably  practicable following the acquisition by the Purchaser of a majority
of the outstanding

                                        3


<PAGE>


Shares (on a fully diluted basis).  Parent and the Purchaser have agreed to vote
at the Stockholders'  Meeting all Shares owned or acquired pursuant to the Offer
or otherwise by them or any of their  affiliates in favor of the Merger.  In the
event that the Purchaser  acquires such number of Shares as constitutes at least
90% of the  outstanding  Shares,  the  parties  will to take all  necessary  and
appropriate  action to cause the Merger to become effective,  in accordance with
Section  253  of  the  DGCL,  as  soon  as  reasonably  practicable  after  such
acquisition, without a meeting of the stockholders of the Company.

     The Merger  Agreement  provides that, in connection  with the  Stockholders
Meeting,  the Company will file a proxy statement (the "Proxy  Statement") under
the Securities  Exchange Act of 1934, as amended (the "Exchange Act"),  with the
Securities and Exchange Commission (the "Commission"),  and cause the definitive
Proxy Statement to be delivered to stockholders promptly following review by the
Commission.  The Company has agreed not to distribute the Proxy Statement or any
amendment  or  supplement  thereto  without the prior  consent of Parent and its
counsel.  Parent  and the  Purchaser  have  agreed to  cooperate  fully with the
Company  in the  preparation  of the  Proxy  Statement  and any  amendments  and
supplements  thereto. The Company has agreed to use its best efforts to have the
Proxy Statement  cleared by the Commission and shall cause the definitive  Proxy
Statement to be distributed to its stockholders entitled to vote upon the Merger
as promptly as practicable thereafter.

     Conduct of the Company's Business. In the Merger Agreement, the Company has
agreed to conduct the business of the Company and its  subsidiaries  only in the
ordinary  course of business and consistent  with past practice.  In particular,
the Company has covenanted,  among other things,  not to do any of the following
prior to the Effective Time: (i) sell, pledge, dispose of or encumber (or permit
any  subsidiary  of the Company to sell,  pledge,  dispose of or  encumber)  any
assets of the Company or any  subsidiary  of the Company,  except  inventory and
immaterial  assets in the ordinary course of business;  (ii) amend or propose to
amend its  Certificate  of  Incorporation  or Bylaws;  (iii)  split,  combine or
reclassify any outstanding shares of its capital stock, or declare, set aside or
pay any dividend payable in cash,  stock,  property or otherwise with respect to
such shares (except for any dividends paid in the ordinary course to the Company
or to any  wholly-owned  subsidiary  of the  Company);  (iv)  redeem,  purchase,
acquire or offer to acquire (or permit any  subsidiary of the Company to redeem,
purchase,  acquire or offer to  acquire)  any shares of its capital  stock;  (v)
enter into any contract,  agreement,  commitment or arrangement  with respect to
any of the foregoing  matters;  (vi) issue, sell, pledge or dispose of, or agree
to issue,  sell,  pledge or dispose of, any additional  shares of, or securities
convertible or exchangeable for, or any options,  warrants or rights of any kind
to acquire  any shares of, its capital  stock of any class or other  property or
assets  whether  pursuant to the Company  Stock Option Plan or the Company Stock
Purchase Plan (except in respect of  outstanding  options under such Plans),  or
otherwise;  (vii) acquire (by merger,  consolidation  or acquisition of stock or
assets) any corporation,  partnership or other business organization or division
thereof  (except an existing  wholly-owned  subsidiary of the  Company);  (viii)
incur any  indebtedness  for borrowed  money or issue any debt  securities in an
amount  exceeding  $3,000,000  in the  aggregate;  (ix) enter into or modify any
material contract, lease, agreement or commitment, except in the ordinary course
of business and consistent with past practice;  (x) terminate,  modify,  assign,
waive,  release or relinquish any material contract rights or amend any material
rights  or  claims  not in the  ordinary  course  of  business;  (xi)  settle or
compromise any material claim,  action, suit or proceeding pending or threatened
against the  Company,  or, if the Company may be liable or  obligated to provide
indemnification,  against the Company's directors or officers, before any court,
governmental  agency or  arbitrator;  (xii) grant any  increase in the salary or
other  compensation  of its  employees  except  (A)  pursuant  to the  terms  of
employment  agreements  in  effect  on the  date  of the  Merger  Agreement  and
previously  disclosed  to Parent  and (B) in the case of  employees  who are not
executive  officers of the  Company,  in the  ordinary  course of  business  and
consistent  with past practice;  (xiii) grant any bonus to any employee or enter
into any  employment  agreement  or make any loan to or enter into any  material
transaction  of any  other  nature  with  any  employee  of the  Company  or any
subsidiary of the Company; or (xiv) with certain exceptions,  adopt or amend any
welfare or benefit  agreement,  plan or arrangement  for directors,  officers or
employees.

     Notices of Certain Matters. The Company and Parent are each obligated under
the Merger  Agreement to give the other prompt notice of (i) the occurrence,  or
failure to occur, of any event that such party believes would be likely to cause
any of its representations or warranties contained in the Merger

                                        4


<PAGE>


Agreement to be untrue or  inaccurate  in any material  respect at any time from
July 8, 1997 to the Effective Time and (ii) any material failure of the Company,
Parent or the Purchaser, as the case may be, or any officer, director,  employee
or agent thereof, to comply with or satisfy any covenant, condition or agreement
to be complied with or satisfied by it under the Merger Agreement.

     Indemnification  and  Insurance.  The  Merger  Agreement  provides  for the
survival  beyond  the  Merger,  for a period of not less than six years from the
Effective Time, of all rights to indemnification  and exculpation from liability
set forth in the Company's  Restated  Certificate of Incorporation and Bylaws as
in  effect  on the  date of the  Merger  Agreement.  During  such  period,  such
provisions may not be amended, repealed or otherwise modified in any manner that
would adversely affect the rights  thereunder of individuals who, at or prior to
the Effective Time, were directors, officers, employees or agents of the Company
("Indemnified  Parties") unless such modification is required by law. Parent has
agreed to guarantee  the  performance  of the  Company's  obligations  under the
existing indemnification agreements with the Company's directors and officers.

     In addition,  pursuant to the Merger Agreement,  Parent has agreed to cause
the Company to maintain,  for a period of two years after the expiration date of
the Company's  current  policy,  officers' and  directors'  liability  insurance
covering those  Indemnified  Parties who are currently  covered by the Company's
directors' and officers'  liability  insurance policy, on terms that are no less
favorable to such Indemnified  Parties than the terms of such current  coverage.
The  Company is not  obligated  to expend in any one year an amount in excess of
150% of the annual premiums currently payable by the Company for such insurance.

     Further  Assurances.  Pursuant  to the terms of the  Merger  Agreement  and
subject to the conditions thereof, each of the parties thereto has agreed to use
all reasonable  efforts to take, or cause to be taken,  all action and to do, or
cause to be done,  all things  necessary,  proper or advisable to consummate and
make effective as promptly as practicable the  transactions  contemplated by the
Merger Agreement, including, without limitation, using all reasonable efforts to
obtain all necessary waivers, consents and approvals and to effect all necessary
registrations and filings. Neither Parent nor the Company is obligated, however,
to make or agree to any  divestiture  of a significant  asset in order to obtain
any waiver, consent or approval.

     Publicity. Under the Merger Agreement,  Parent and the Company have agreed,
subject to the  requirements  of law, not to issue any press release or make any
other  public  announcement  concerning  the  Merger  Agreement  or the  related
transactions without the prior consent of the other party.

     Conditions  to the  Merger.  Under the  Merger  Agreement,  the  respective
obligations  of each party to effect the Merger are subject to the  satisfaction
at or prior to the Effective  Time of the following  conditions:  (i) the Merger
Agreement  and the Merger shall have been  approved and adopted by the requisite
vote of the  stockholders of the Company;  (ii) any waiting period under the HSR
Act shall have expired or earlier terminated;  (iii) no preliminary or permanent
injunction  or other  order,  decree or ruling  shall be in  effect  that  would
restrain  the  effective  operation  of the  business  of the  Company  and  its
subsidiaries  from and after the Effective Time; and (iv) no proceeding shall be
pending that challenges the Merger  Agreement or the  transactions  contemplated
thereby or seeks to prohibit, alter, prevent or materially delay the Merger. The
obligations of Parent and the Purchaser to effect the Merger are also subject to
the Purchaser having purchased Shares pursuant to the Offer.

     Inquiries and  Negotiations.  Until  termination  of the Merger  Agreement,
neither  the Company nor any of its  subsidiaries,  nor any of their  respective
directors,  officers, employees,  representatives or other agents, may, directly
or indirectly, solicit or initiate any discussions,  submissions of proposals or
offers or negotiations  with, or, subject to the fiduciary duties of the Company
Board as advised by counsel,  participate  in any  negotiations  or  discussions
with,  or  provide  any  information  or data of any  nature  whatsoever  to, or
otherwise  cooperate  in any  other  way with,  or  assist  or  participate  in,
facilitate  or  encourage  any effort or attempt  by, any  person,  corporation,
entity or "group" (as defined in Section  13(d) of the Exchange  Act) other than
Parent and its affiliates, representatives and agents (each, a "Third Party") in
connection with any merger, consolidation, sale of any substantial subsidiary or
division  that is material to the business of the Company and its  subsidiaries,
sale of shares of capital stock or

                                        5


<PAGE>
other  equity  securities,  tender or  exchange  offer,  recapitalization,  debt
restructuring or similar  transaction  involving the Company (such  transactions
being hereinafter  referred to as "Alternative  Transactions").  The Company has
agreed to notify Parent  immediately  if any proposal,  offer,  inquiry or other
contact is received  by or  continued  with,  the Company in respect of any such
transaction,  and, in any such  notice,  to indicate  the  identity of the Third
Party and the terms and  conditions  of any proposals or offers or the nature of
any  inquiries or  contacts,  and  thereafter  must keep Parent  informed,  on a
current  basis,  of the status and terms of any such proposals or offers and the
status of any such discussions or negotiations.  The Company is required to give
Parent not less than two  business  days'  notice  prior to the  execution  of a
definitive  agreement  with respect to an Alternative  Transaction  and not less
than  two  days'  notice  (or  the  longest  notice  legally  permitted,  in the
reasonable  opinion  of the  Company's  counsel,  if less  than two days) of any
public announcement relating to any Alternative Transaction. The Company may not
release any third party from, or waive any provision of, any  confidentiality or
standstill agreement to which the Company is a party.

     Prior  to  furnishing  any  nonpublic  information  to,  or  entering  into
negotiations  or discussions  with, any Third Party,  the Company is required to
obtain an  executed  confidentiality  agreement  from such Third  Party on terms
substantially  the same as, or no less  favorable to the Company in any material
respect than,  those  contained in the  Confidentiality  Agreement.  The Company
cannot  release  any Third  Party  from,  or waive any  provision  of,  any such
confidentiality  agreement or any other  confidentiality or standstill agreement
to which the  Company is a party.  As of the date of the Merger  Agreement,  the
Company,   its   subsidiaries   and   the   officers,   directors,    employees,
representatives  and  other  agents of the  Company  and its  subsidiaries  were
required to cease all  discussions,  negotiations  and  communications  with all
Third Parties and demand the immediate  return of all  confidential  information
previously provided to Third Parties.

     Termination;  Fees and Expenses. The Merger Agreement may be terminated and
the  Merger  may  be  abandoned  at  any  time  prior  to  the  Effective  Time,
notwithstanding  any  requisite  approval  thereof  by the  stockholders  of the
Company:

     (i)  by mutual action of the Boards of Directors of Parent and the Company;

     (ii) by either Parent or the Company, if the Offer is not consummated on or
before  the close of  business  on  October  31,  1997,  or if the Merger is not
effected on or before the close of business on December 31, 1997; unless, in any
case,  such event has been caused by the breach of the Merger  Agreement  by the
party seeking such termination;

     (iii) by Parent if (1) the conditions to its  obligations to consummate the
Merger shall not have been  complied  with or performed in any material  respect
prior to December 31, 1997;  (2) the Offer is terminated or expires  without the
purchase of any Shares, unless such termination or expiration has been caused by
the failure of Parent or the  Purchaser to perform in any  material  respect its
obligations under the Merger Agreement and the Offer; (3) the Board of Directors
of the Company shall have withdrawn,  modified or amended in a manner adverse to
Parent and the  Purchaser  its approval or  recommendation  of the Offer and the
Merger or approved,  recommended or endorsed any proposal for, or authorized the
Company to enter into, an Alternative Transaction;  or (4) Cowen & Company shall
have  withdrawn  its opinion at any time prior to the earlier of (A)  acceptance
for  payment of Shares by the  Purchaser  under the Offer and (B) the  Effective
Time; or

     (iv) by the Company if (1) the conditions to its  obligations to consummate
the  Merger  shall not have been  complied  with or  performed  in any  material
respect  prior to  December  31,  1997,  or (2) prior to the  earlier of (x) the
acceptance  for  payment  of  Shares  by the  Purchaser  under the Offer and (y)
stockholder  approval of the Merger Agreement and the Merger,  the Company shall
enter  into a  definitive  written  agreement  with  respect  to an  Alternative
Transaction  with a Third Party,  or a Third Party has  commenced a tender offer
that, in either case, the Company Board believes in good faith is more favorable
to the Company's  stockholders than the transactions  contemplated by the Merger
Agreement,  provided,  that all  amounts  payable  by the  Company  by reason of
termination  of the Merger  Agreement (as described  below) shall have been paid
prior  to  such   termination   (except  to  the  extent  that  certain  expense
reimbursements  are paid  thereafter,  promptly  upon  receipt of  documentation
therefor).

                                       6
<PAGE>

     If the Merger Agreement is terminated due to a "Payment Event", the Company
will be required  to pay to Parent,  within two  business  days  following  such
Payment  Event,  (i) a fee of $8,200,000 in cash,  plus (ii) all  reasonable and
documented  out-of-pocket  costs  and  expenses  of  Parent  and the  Purchaser,
including  without  limitation  fees  and  expenses  of  counsel,   accountants,
investment bankers and other advisors and printing  expenses.  In the event that
the Merger  Agreement is terminated  for any other  reason,  and the Company has
failed to comply with or perform, or has breached,  in any material respect, any
of its covenants or agreements  contained in the Merger  Agreement,  the Company
shall pay to Parent,  within two business days following such  termination,  the
fees and expenses referred to in clause (ii) of the preceding  sentence,  except
that such fees and  expenses  are not  payable  if Parent or the  Purchaser  has
failed to comply with or perform, or has breached,  in any material respect, any
of its covenants or agreements contained in the Merger Agreement.

     The Merger  Agreement  defines a "Payment  Event" as (i) the termination of
the Merger  Agreement by Parent for the reasons  described in clause (iii)(3) or
clause  (iii)(4)  above;  (ii) the  termination  of the Merger  Agreement by the
Company  for the  reasons  described  in  clause  (iv)(2)  above;  or (iii)  the
occurrence  of any of the  following  events within six months after the date of
termination of the Merger  Agreement (other than because Parent or the Purchaser
has failed to comply with or perform,  or has breached in any material  respect,
any of its  covenants  or  agreements  contained  in the  Merger  Agreement)  if
stockholders of the Company receive, pursuant to such event, cash, securities or
other  consideration  having an aggregate  value,  when taken  together with the
value of any securities of the Company or its subsidiaries otherwise held by the
stockholders of the Company after such event, in excess of $20.90 per Share: (w)
the Company is acquired by merger or  otherwise  by a Third  Party;  (x) a Third
Party  acquires  more  than  50% of the  total  assets  of the  Company  and the
subsidiaries of the Company,  taken as a whole;  (y) a Third Party acquires more
than 50% of the  outstanding  Shares or (z) the Company  adopts and implements a
plan of  liquidation  or  share  repurchase  relating  to more  than  50% of the
outstanding Shares or an extraordinary dividend relating to more than 50% of the
assets of the Company and its subsidiaries, taken as a whole.

     Except as set forth above, in the event that the transactions  contemplated
by Merger Agreement are not consummated,  neither the Company,  on the one hand,
nor Parent and the  Purchaser,  on the other hand,  shall have any obligation to
pay any of the fees and expenses of the other.

     In the event that the transactions contemplated by the Merger Agreement are
consummated,  Parent  shall  pay all of the fees and  expenses  of the  Company,
Parent and the Purchaser incident to the negotiation,  preparation and execution
of  the  Merger   Agreement,   including  the  fees  and  expenses  of  counsel,
accountants, investment bankers and other advisors.

     Amendment.  The Merger Agreement may be amended or supplemented at any time
before or after its approval and adoption by the  stockholders of the Company by
action of the  respective  Boards of Directors  of the  Company,  Parent and the
Purchaser,  without  action  by the  stockholders  thereof,  except  that  after
approval and adoption of the Merger Agreement by the Company's stockholders,  no
such amendment or supplement shall, without consent of such stockholders, reduce
the  amount  or alter  the form of the  consideration  that the  holders  of the
capital stock of the Company shall be entitled to receive at the Effective  Time
pursuant to the Offer.

     FINANCING COMMITMENT LETTER

     On July 8,  1997,  WCAS VII and WCAS CP III,  delivered  to Parent a letter
agreement confirming their commitment, subject to satisfaction of the conditions
described in the Merger Agreement,  to provide or cause to be provided to Parent
and the Purchaser  sufficient funding to permit the payment of the amounts to be
paid to stockholders of the Company pursuant to the Offer and the Merger,  up to
an aggregate  $200 million for WCAS VII and $100 million for WCAS CP III. A copy
of such letter  agreement  is filed with this  Statement  as Exhibit  (c)(2) and
incorporated herein by reference.

     Except  as set  forth in the  preceding  paragraphs  of this  Item 3 and as
described in Item 4, below,  to the best knowledge of the Company,  there are no
material contracts, agreements,  arrangements or understanding, or any actual or
potential  conflicts of interest,  between the Company or its affiliates and (i)
the Company, its executive officers,  directors or affiliates or (ii) the Bidder
or  its  respective  executive  officers,   directors,   controlling  person  or
affiliates.

                                        7


<PAGE>


ITEM 4. THE SOLICITATION OR RECOMMENDATION.

     (A) RECOMMENDATION OF THE BOARD OF DIRECTORS.

     The Board of  Directors of the Company has  unanimously  approved the Offer
and the  Merger  and  determined  that the terms of the Offer and the Merger are
fair to, and in the best  interests  of, the  stockholders  of the  Company  and
unanimously  recommends  that  stockholders  of the Company accept the Offer and
tender their Shares to the Purchaser.

     (B) BACKGROUND OF THE OFFER; REASONS FOR THE RECOMMENDATION.

     Background of the Offer

     During the last three years the Company has, at the  recommendation  of the
Board of Directors,  pursued strategic and financial  opportunities  intended to
improve the focus of the Company and enhance the value of the Company.  Numerous
discussions  and the completion of several  transactions  took place during this
period.  Completed transactions have included the sale of the stock or assets of
eight product  subsidiaries to AmeriData,  Inc. in 1995 and 1996 and the sale of
the Company's ownership interest in Metaphase Technology, Inc. and the Company's
related  product  data  management  sales and  support  business  to  Structural
Dynamics Research  Corporation  ("SDRC")  effective January 1, 1997. The Company
also made several  acquisitions and held numerous other discussions  during this
period to  explore  merger,  acquisition  and  investment  opportunities.  These
included  discussions with computer systems  companies both in the United States
and  Europe,   telecommunication  companies,  computer  services  companies  and
investment companies. None of these discussions resulted, however, in any formal
offers to acquire  the  Company or any part of it,  except  with  respect to the
sales to  AmeriData,  Inc.  and SDRC  referenced  above.  The Company  also held
discussions  during this period with various investment bankers in fall 1995 and
spring 1997 to consider strategic options for the Company.

     In November  1995,  management of the Company met with  representatives  of
WCAS,  which directly or indirectly  controls  Parent and the  Purchaser,  as to
whether  either party was  interested in pursuing the sale of the Company to one
of the WCAS  managed  funds.  On  November  1, 1995,  the  Company  and WCAS VII
executed a Confidentiality  Agreement, and a series of presentations occurred on
November 7, 1995, in which Company  management  presented  certain financial and
business information to WCAS.  Subsequent to the November 7 meeting, the Company
provided additional  information to WCAS. In December 1995, the Company received
an oral response from WCAS that it was not interested in pursuing a transaction.
No further  discussions with WCAS were held during the balance of 1995 or during
1996.  The Company  meanwhile  continued to pursue  strategic  opportunities  as
described above.

     At the January 29,  1997,  Board  meeting,  the Board  reviewed the overall
strategic  plan for 1997 and beyond and  instructed  management  to  continue to
explore strategic and financial  alternatives for the Company.  Discussions were
pursued  by James E.  Ousley,  President  and  Chief  Executive  Officer  of the
Company,   with  additional   potential   strategic  partners  without  success.
Management also pursued informal discussions with various investment bankers and
strategic partners to explore alternatives.

     In March  1997,  the  Company  received  a request  from WCAS to update the
information  that WCAS had reviewed in November  1995. In April 1997, Mr. Ousley
and  W.  Douglas  Hajjar,  Chairman  of  the  Board  of the  Company,  met  with
representatives  of WCAS to discuss  strategic  plans and  alternatives  for the
Company.

     On May 21, 1997, representatives of WCAS met with Mr. Ousley and Mr. Hajjar
to discuss the  possibility  of WCAS making an offer to  purchase  the  Company.
Subsequent to that discussion,  information on business and financial matters of
the Company were provided to WCAS pursuant to its requests. On June 11-12, 1997,
WCAS reviewed marketing,  technology and financial matters with the Company, and
decided to proceed with a due diligence  review of the Company.  From June 16 to
July 8, 1997, WCAS and its advisors performed legal,  financial and business due
diligence with the Company.

     On  June  23,  1997,   the  Board  of  Directors  of  the  Company  met  by
teleconference  to discuss a potential  offer from WCAS to purchase the Company.
The Board directed  management to continue to proceed with its discussions  with
WCAS and, at that meeting, Mr. Hajjar reviewed a meeting that Mr. Ousley and Mr.

                                        8


<PAGE>


Hajjar had with representatives of Cowen & Company ("Cowen") on May 22, 1997, at
which  time  Cowen  reviewed  with Mr.  Ousley  and Mr.  Hajjar its views on the
outlook for sale of the Company,  potential buyers that had been identified, and
the potential  valuation methods for the Company as a whole and its nonstrategic
business  segments.  Mr.  Ousley  informed  the  Board  that  he had  previously
contacted each of the target companies identified by Cowen that were believed to
be viable prospects for an acquisition, had held discussions with those that had
indicated interest, and that no offers had resulted from those discussions.

     On June 27, 1997, the Board of Directors of the Company met in Minneapolis.
At that  meeting,  representatives  of Cowen  outlined a  preliminary  valuation
approach for the  Company.  The Board then  unanimously  directed the Company to
pursue discussions with WCAS.  Representatives of the Company and WCAS and their
respective  legal  advisors also  proceeded to negotiate  documentation  for the
contemplated transactions.

     On July 8,  1997,  after the close of the  financial  markets in the United
States,  the Purchaser offered to pay $20.25 per Share, in cash, for the Shares.
Company  management  conducted  further  discussions with the Purchaser and then
presented  the offer to the Board of Directors at a special  meeting held in the
early  evening of July 8, 1997.  Following  further  discussion of the price and
terms offered by the Purchaser, Cowen delivered its opinion to the Company Board
that the financial  terms of the Offer and the Merger are fair, from a financial
point of view,  to the  Control  Data  stockholders  (other  than Parent and its
affiliates) as of the date of such opinion. Late in the evening on July 8, 1997,
the Boards of  Directors  of the  Company  and the  Purchaser  each  unanimously
approved the transactions  and the purchase price.  Following such approvals the
Merger  Agreement was executed and delivered,  and the  transaction was publicly
announced before financial markets in the United States opened on July 9, 1997.

     Reasons for the Recommendation

     At its  meeting  on July 8, 1997,  the Board of  Directors  of the  Company
unanimously (i) approved the Merger  Agreement,  the Offer and the Merger,  (ii)
determined  that the Offer and the Merger are fair to, and in the best interests
of, the  stockholders  of the  Company,  and (iii)  resolved to  recommend  that
stockholders accept the Offer and tender their Shares pursuant to the Offer.

     Prior to reaching its decision to approve the transactions  contemplated by
the Merger  Agreement  and to recommend  acceptance  of the Offer,  the Board of
Directors  received  presentations  from,  and reviewed the Offer and the Merger
Agreement  with,  management  of the  Company  as  well as  with  Cowen  and the
Company's legal counsel. In reaching its decision, the Board considered a number
of factors,  including,  but not limited  to, the  following:  (i) the terms and
conditions  of the  Merger  Agreement,  including  the  amount  and  form of the
consideration;  (ii) the fact that the  $20.25  per  Share  price  represents  a
premium of approximately  29% over the closing sale price of $15.69 per Share as
reported  on the  Nasdaq  National  Market on July 8,  1997;  (iii)  the  recent
historical market prices of the Shares;  (iv) the Board of Directors'  knowledge
of the business, operations,  prospects,  properties, assets and earnings of the
Company;  (v) the Company's  current  financial  condition and future prospects;
(vi) the effect of the proposed transaction on the Company's  relationships with
its employees and customers;  (vii) the likelihood that the Offer and the Merger
would  be  consummated,  including  the  experience,  reputation  and  financial
condition  of the  Purchaser  and its  affiliates;  (viii) a review of  possible
values realizable by the Company's stockholders through other alternatives; (ix)
the fact that,  pursuant to the Merger Agreement,  the Company is not prohibited
from  responding to any unsolicited  alternative  transaction to the extent that
the  Board  of  Directors  of  the  Company  determines  in  good  faith,  after
consultation  with  outside  counsel,  that it is necessary to do so in order to
comply with its fiduciary duties to the Company's  stockholders  under the DGCL;
and (x) the  presentation  of Cowen at the meeting of the Board of  Directors on
July 8, 1997, and the written opinion of Cowen dated July 8, 1997, to the effect
that, as of such date, the financial  terms of the Offer and the Merger are fair
to the Control Data  stockholders  (other than Parent and its affiliates) from a
financial point of view.

     The full text of the  opinion  of Cowen,  which  sets  forth,  among  other
things,  the assumptions made,  matters considered and limitations on the review
undertaken, is filed as Exhibit (a)(5) hereto, is attached as Annex B hereto and
is  incorporated  herein by reference.  Stockholders of the Company are urged to
read such  opinion  in its  entirety.  Cowen's  opinion  was  presented  for the
information of the Board in connection

                                        9


<PAGE>


with its  consideration  of the Merger  Agreement,  and is directed  only to the
fairness from a financial point of view of the  consideration  to be received by
holders of the  Company's  Common Stock  (other than Parent and its  affiliates)
pursuant to the Offer and the Merger.  Cowen's  opinion  does not  constitute  a
recommendation  to any  stockholder  as to  whether  to sell such  stockholder's
shares in the Offer pursuant to the Merger Agreement.

     In light  of all the  factors  set  forth  above,  the  Board of  Directors
approved the Merger Agreement, the Offer, and the Merger. In view of the variety
of factors considered in connection with its evaluation of the transaction,  the
Board of  Directors  did not assign  relative  weights to the  specific  factors
considered in reaching its decision.

ITEM 5. PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED

     The Company  retained Cowen to render a fairness opinion in connection with
a possible sale of the Company.  On June 20, 1997,  the Company  entered into an
engagement  letter  (the  "Letter  Agreement")  to engage  Cowen to  render,  if
requested, an opinion as to the fairness, from a financial point of view, of the
financial  terms of the Offer and the Merger to the  stockholders of the Company
(other than Parent and its affiliates). The Company agreed to pay Cowen a fee of
$500,000 upon  delivery of such opinion.  The Company also agreed to pay Cowen's
reasonable out-of-pocket expenses,  including fees and disbursements of counsel,
incurred in carrying out its duties under the Letter  Agreement and to indemnify
Cowen  against  certain  liabilities  arising out of or in  connection  with its
engagement.

     Except as set forth above, neither the Company nor any person acting on its
behalf has or currently  intends to employ,  retain or compensate  any person to
make  solicitations  or  recommendations  to  stockholders of the Company on its
behalf with respect to the Offer.

ITEM 6. RECENT TRANSACTIONS AND INTENT WITH RESPECT TO SECURITIES

     (a) During the past 60 days, no  transactions  in Shares have been effected
by the  Company or, to the best of the  Company's  knowledge,  by any  executive
officer, director, affiliate or subsidiary of the Company.

     (b) To the  best  of  the  Company's  knowledge,  its  executive  officers,
directors and their  affiliates  presently intend to tender to the Purchaser any
Shares that are held of record or beneficially owned by such persons.

ITEM 7. CERTAIN NEGOTIATIONS AND TRANSACTIONS BY THE SUBJECT COMPANY

     (a)  Except  as set  forth  in this  Statement,  no  negotiation  is  being
undertaken  or is underway by the Company in response to the Offer that  relates
to or would  result  in (i) an  extraordinary  transaction,  such as a merger or
reorganization, involving the Company or its subsidiaries; (ii) a purchase, sale
or transfer of a material  amount of assets by the Company or its  subsidiaries;
(iii) a  tender  offer  for or  other  acquisition  of  securities  by or of the
Company;  or (iv) any material change in the present  capitalization or dividend
policy of the Company.

     (b) Except as set forth in this Statement,  there is no transaction,  board
resolution,  agreement in principle or signed  contract in response to the Offer
that relates to or would result in one or more of the events referred to in Item
7(a) above.

                                       10


<PAGE>


ITEM 8. ADDITIONAL INFORMATION TO BE FURNISHED

     The information  contained in Exhibits (a)(1),  (a)(2),  (a)(5), (c)(1) and
(c)(2) referred to in Item 9 below is incorporated herein by reference.

ITEM 9. MATERIAL TO BE FILED AS EXHIBITS


NUMBER                                   DESCRIPTION
- --------   ---------------------------------------------------------------------
(a)(1)     Form of Offer to Purchase dated July 15, 1997.

(a)(2)     Form of Letter of Transmittal

(a)(3)     Text of Joint Press Release issued by Control Data Systems,  Inc. and
           CDSI Holding Corporation dated July 9, 1997.

(a)(4)     Form of Letter to Stockholders from Control Data Systems,  Inc. dated
           July 15, 1997

(a)(5)     Opinion of Cowen & Company dated July 8, 1997

(c)(1)     Agreement and Plan of Merger,  dated as of July 8, 1997, by and among
           Control  Data  Systems,  Inc.,  CDSI  Holding  Corporation  and  CDSI
           Acquisition Corp.

(c)(2)     Letter to CDSI Holding Corporation by Welsh, Carson, Anderson & Stowe
           VII, L.P. and WCAS Capital Partners III, L.P. dated July 8, 1997


                                       11


<PAGE>


     SIGNATURE.  After  reasonable  inquiry  and to the best of my knowledge and
belief,  I  certify  that  the  information set forth in this statement is true,
complete and correct.

                                     CONTROL DATA SYSTEMS, INC.

Dated: July 15, 1997                 By /s/ James E. Ousley
                                        ---------------------------------------

                                            James E. Ousley
                                            President    and   Chief   Executive
                                            Officer



                                       12


<PAGE>


                                                                         ANNEX A

                           CONTROL DATA SYSTEMS, INC.
                           4201 LEXINGTON AVENUE NORTH
                          ARDEN HILLS, MINNESOTA 55126

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

                        INFORMATION STATEMENT PURSUANT TO
                         SECTION 14(f) OF THE SECURITIES
                 EXCHANGE ACT OF 1934 AND RULE 14f-1 THEREUNDER

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

        NO VOTE OR OTHER ACTION OF THE COMPANY'S STOCKHOLDERS IS REQUIRED
                 IN CONNECTION WITH THIS INFORMATION STATEMENT.
            NO PROXIES ARE BEING SOLICITED AND YOU ARE REQUESTED NOT
                          TO SEND THE COMPANY A PROXY.

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



     This  Information  Statement  is being  mailed on or about July 15, 1997 as
part of the  Solicitation/  Recommendation  Statement  on  Schedule  14D-9  (the
"Schedule  14D-9") of Control Data Systems,  Inc. (the  "Company") to holders of
the Shares. You are receiving this Information  Statement in connection with the
possible  election of persons  designated  by the Purchaser to a majority of the
seats on the Board of Directors of the Company.  This  Information  Statement is
required by Section 14(f) of the Exchange Act and Rule 14f-1 thereunder.

     Under the Merger Agreement, effective upon payment by the Purchaser for all
Shares  accepted for payment  pursuant to the Offer,  provided  that such Shares
constitute a majority of all Shares on a fully-diluted basis,  Purchaser will be
entitled  to  designate  the number of  directors  (rounded up to the next whole
number) on the  Company's  Board of  Directors  that  equals the  product of the
number of directors on the Company's  Board of Directors  (giving  effect to the
election of additional  directors) and the ratio that the combined  voting power
of the  Shares so  purchased  bears to the total  combined  voting  power of all
outstanding  Shares. The Company has agreed to increase the size of its Board of
Directors  and/or to secure the  resignation  of directors,  conditioned  on and
effective as of the closing of the Offer,  to enable the  Purchaser's  designees
(the "Purchaser Designees") to be appointed to the Board.

     Effective  upon the  closing of the  Offer,  Patrick  J.  Welsh,  Thomas E.
McInerney, and Rudolph E. Rupert, as the Purchaser Designees, may become members
of the  Company's  Board of  Directors.  Information  regarding  such  Purchaser
Designees is included herein.  Pursuant to the Merger  Agreement,  the Purchaser
commenced the Offer on July 15, 1997.  The Offer is scheduled to expire at 12:00
midnight,  New York City time, on Monday,  August 11, 1997,  unless the Offer is
extended.

     You are urged to read this Information  Statement  carefully.  You are not,
however,  required to take any action.  Capitalized terms used and not otherwise
defined  herein  shall have the meaning  set forth in the  Schedule  14D-9.  The
information  contained in this Information  Statement  concerning the Purchaser,
Parent and the  Purchaser  Designees  has been  furnished to the Company by such
persons,  and  the  Company  assumes  no  responsibility  for  the  accuracy  or
completeness of such information.

                                       A-1


<PAGE>


            BOARD OF DIRECTORS AND EXECUTIVE OFFICERS OF THE COMPANY

GENERAL

     The  Shares  are  the  only  class  of  voting  securities  of the  Company
outstanding.  Each Share has one vote. As of July 7, 1997, there were 12,622,359
Shares outstanding.  The Board of Directors currently consists of one class with
six members.  At each annual  meeting of  stockholders,  all six  directors  are
elected for one-year terms. The officers serve at the discretion of the Board.

PURCHASER DESIGNEES

     Pursuant to the Merger  Agreement,  upon the  acceptance for payment by the
Purchaser  of a majority of the  outstanding  Shares  pursuant to the Offer (and
deposit  with  the  Depositary  of funds  sufficient  to make  payment  for such
Shares),  the Purchaser will be entitled to designate the number of directors to
the Board of Directors of the Company (rounded up to the next whole number) that
equals  the  product  of the  number  of  directors  on the  Company's  Board of
Directors (giving effect to the election of additional  directors) and the ratio
that the number of Shares  purchased by the Purchaser  bears to the total number
of outstanding  Shares. The Company has agreed to increase the size of its Board
of Directors  and/or to secure the resignation of directors,  conditioned on and
effective as of the closing of the Offer and subject to compliance  with Section
14(f)  of the  Exchange  Act,  to  provide  the  Purchaser  with  such  level of
representation.  Notwithstanding  the  foregoing,  at  all  times  prior  to the
Effective Time of the Merger at least two directors on the Company Board will be
directors in office as of the date of the Merger Agreement who are not employees
of the  Company  or any of its  subsidiaries  or  affiliates  of  Parent  or the
Purchaser.

     In connection  with the  foregoing,  the Purchaser has provided the Company
with information concerning the persons it is designating for appointment to the
Company  Board (the  "Purchaser  Designees"),  who  consist of Patrick J. Welsh,
Thomas E. McInerney, and Rudolph E. Rupert, for inclusion in this Statement. The
Purchaser  has  informed the Company that each of the  Purchaser  Designees  has
consented to act as a director.  Except as  otherwise  disclosed in the Schedule
14D-1, none of the Purchaser  Designees (i) is currently a director of, or holds
any position with, the Company, (ii) has a familial relationship with any of the
directors or executive officers of the Company or (iii) to the best knowledge of
the  Purchaser,  beneficially  owns any  securities  (or rights to  acquire  any
securities) of the Company.  The Company has been advised by the Purchaser that,
to the best of the Purchaser's  knowledge,  none of the Purchaser  Designees has
been  involved  in any  transaction  with the  Company or any of its  directors,
executive  officers or affiliates  that is required to be disclosed  pursuant to
the rules and regulations of the Commission.

     It is  expected  that some or all of the  Purchaser  Designees  may  assume
office at any time  following the purchase by the Purchaser of a majority of the
Shares  pursuant to the Offer and that,  upon  assuming  office,  the  Purchaser
Designees will thereafter constitute a majority of the Board of Directors.

                                       A-2


<PAGE>


     Biographical  information  concerning  each of the  Purchaser  Designees is
presented below.

<TABLE>
<CAPTION>
         NAME                             PRINCIPAL OCCUPATION AND OTHER INFORMATION         AGE
- -------------------------   --------------------------------------------------------------   ----
<S>                         <C>                                                              <C>
Patrick J. Welsh   ......   Patrick J. Welsh is Chairman and director of each of             53
                            Parent  and the  Purchaser.  Mr.  Welsh  is  general
                            partner  or  managing  member  of the  sole  general
                            partners of several investment funds affiliated with
                            WCAS.   Mr.   Welsh   serves   as  a   director   of
                            Pharmaceutical  Marketing  Services Inc. and MedCath
                            Incorporated.

Thomas E. McInerney .....   Thomas E.  McInerney  is  President  and director of             55
                            each of Parent and the Purchaser.  Mr.  McInerney is
                            general  partner  or  managing  member  of the  sole
                            general   partners  of  several   investment   funds
                            affiliated  with  WCAS.  Mr.  McInerney  serves as a
                            director   of  The   Bisys   Group,   Inc.,   Aurora
                            Electronics, Inc. and DecisionOne Holdings Corp.

Rudolph E. Rupert  ......   Rudolph  E.  Rupert  is Vice  President,  Secretary,             31
                            Treasurer,  and  director for each of Parent and the
                            Purchaser. Mr. Rupert is Vice President of WCAS. Mr.
                            Rupert  was  an   associate   at  General   Atlantic
                            Partners, L.L.P., a private investment group focused
                            on  software  and  information  technol-  ogy,  from
                            September  1994 to  March  1997.  Mr.  Rupert  was a
                            consultant  at Onex  Investment  Corp.,  a  publicly
                            traded  holding  company,  from  Febru-  ary 1993 to
                            September 1994 and an Associate at Lazard Freres, an
                            invest- ment bank, from January 1987 to May 1992.

</TABLE>

CURRENT DIRECTORS

     Biographical information concerning each of the Company's current directors
follows:

<TABLE>
<CAPTION>

                                                                                             DIRECTOR
        NAME                           PRINCIPAL OCCUPATION AND OTHER INFORMATION      AGE    SINCE
- ---------------------- --------------------------------------------------------------- ----- ---------
<S>                    <C>                                                             <C>   <C>
W. Donald Bell  ...... W.  Donald  Bell  is the  founder,  President  and  Chief       60    August 
                       Executive   Officer  of  Bell   Microproducts,   Inc.,  a              1992  
                       distribution  company  specializing in semicon-  ductors,                    
                       computer products,  and manufacturing  services. Mr. Bell                    
                       founded Bell Microproducts, Inc. in 1988.                       
                                                                                       
Grant A. Dove   ...... Grant  A.  Dove  is  a  Managing  Partner  of  Technology       69    August 
                       Strategies  &  Alli-  ances,  a  strategic  planning  and              1992  
                       investment  banking  firm.  Mr. Dove joined TS&A in 1991.                    
                       From 1987-1992,  Mr. Dove served as Chairman of the Board                    
                       and  Chief  Executive  Officer  of  Microelectronics  and                    
                       Computer Technology  Corporation (MCC). He is Chairman of                    
                       the Board and a director of OPTEK  Technology,  Inc.  Mr.                    
                       Dove is also a director of US West, Inc.,  Cooper Cameron                    
                       Corporation,  Intervoice,  Inc.,  The Fore  Front  Group,       
                       Inc., and MCC.                                                  
                                                                                       
Marcelo A. Gumucio ... Marcelo A. Gumucio is the President  and Chief  Executive       59    August 
                       Officer of Micro Focus,  Inc., an international  software              1992  
                       organization  engaged  in the  design  of  software.  Mr.       
                       Gumucio  joined  Micro Focus in 1996 and is cur- rently a
                       member of its Board of Directors.  From 1992 to 1996, Mr.
                       Gumucio  held  positions as the  President,  Chairman and
                       Chief Executive  Officer of Memorex Telex,  N.V. Prior to
                       that time, Mr. Gumucio was President of Gumucio,  Burke &
                       Associates, a private investment firm he founded in 1990.
                       Mr. Gumucio was the President,  Chief Operating Of- ficer
                       and member of the Board of  Directors  of Cray  Research,
                       Inc. from March 1988 to July 1990.
</TABLE>

                                       A-3


<PAGE>


<TABLE>
<CAPTION>

                                                                                            DIRECTOR
        NAME                         PRINCIPAL OCCUPATION AND OTHER INFORMATION       AGE    SINCE
- --------------------- --------------------------------------------------------------- ----- ---------
<S>                   <C>                                                             <C>   <C>
W. Douglas Hajjar ...  W. Douglas Hajjar is Chairman of the Company. He was Vice       50    August  
                       Chairman of Cadence Design  Systems,  Inc., an electronic              1992   
                       design  automation  ven- dor,  from December  1991,  when                     
                       Cadence Design  Systems,  Inc.  completed its merger with                     
                       Valid Logic  Systems,  Inc., to May 1994.  From September                     
                       1987 through  December  1991, Mr. Hajjar was Chairman and                     
                       Chief Exec- utive  Officer of Valid Logic  Systems,  Inc.                     
                       Mr. Hajjar also serves on the Board of Platinum  Software                     
                       Corporation.                                                    
                                                                                       
Keith A. Libbey   ...  Keith A. Libbey is a member and Chairman  Emeritus of the       60    August  
                       Board of  Fredrikson  &  Byron,  P.A.,  a law  firm  with              1992   
                       principal offices in Minneap- olis, Minnesota.                                
                                                                                       
James E. Ousley   ...  James E. Ousley has been  President  and Chief  Executive       51    August  
                       Officer of the  Company  since the  establishment  of the              1992   
                       Company as an  independent  public  company  through  the                 
                       transfer  of  Ceridian  Corporation's  Computer  Products
                       business to the Company and subsequent immediate spin-off
                       of the Company from Ceridian effective July 31, 1992. Mr.
                       Ousley was Pres- ident of  Ceridian's  Computer  Products
                       business from April 1989 and was Executive Vice President
                       of Ceridian from February 1990 until the spin- off of the
                       Company.  From January 1989 to April 1989, Mr. Ousley was
                       Vice  President,   Marketing  and  Sales  for  Ceridian's
                       Computer Products business and prior thereto held various
                       positions with Ceridian.
</TABLE>

COMPENSATION OF DIRECTORS

     Officers  of the Company do not receive  any  additional  compensation  for
serving as members of the Board of Directors or any of its committees. Directors
who are not employees of the Company  receive an annual  retainer fee of $16,000
($17,000 if chairman  of a Board  committee)  and $1,000 for each Board or Board
committee  meeting  attended.  The Chairman of the Company  receives $25,000 per
calendar quarter,  with no additional fees for Board or Board committee meetings
attended.  If there is a "change of  control"  of the  Company as defined in the
Company's 1992 Equity Incentive Plan, then the Chairman shall, upon a "change of
control  termination"  as defined in such Plan, be paid an amount equal to three
times the Chairman's  annual fee. The  consummation of the Offer and acquisition
by the  Purchaser  of at least a majority  of the  Company's  outstanding  stock
pursuant  thereto will,  assuming the current  Chairman of the Company ceases to
hold such position, constitute a change of control termination.

     Under the  Company's  1992 Equity  Incentive  Plan,  directors  who are not
employees of the Company are also  eligible for stock  options.  As specified in
the Plan, an option for 25,000  shares of the Company's  Common Stock is granted
to each  non-employee  director  when such director  first  assumes  office as a
director.  The Plan also  provides  for the annual  grant of an option for 5,000
shares to each non-employee director upon the non-employee director's reelection
to the  Board.  The  per  share  exercise  price  for  an  option  granted  to a
non-employee director is the fair market value of a share of the Common Stock as
of the date the option is granted.  Each option is a nonqualified  stock option,
expires ten years after the date it is granted  and  becomes  exercisable  as to
one-third of the shares  subject to the option on each of the  succeeding  three
anniversaries  of the option grant.  If a non-employee  director  ceases to be a
director of the Company for reasons other than death or disability,  any portion
of an option not yet exercisable at such time will be forfeited, and the portion
of the option then exercisable will remain exercisable for 90 days.  Pursuant to
the Merger Agreement,  all outstanding options will become fully vested, and the
holders of such options will  receive cash in  termination  of such options on a
per-Share  basis  equal  to the  excess  of the  Merger  Consideration  over the
pre-Share exercise price of such options.

                                       A-4


<PAGE>


BOARD AND COMMITTEE MEETINGS

     The Company's  Board of Directors  held four Board  meetings in fiscal year
1996.  The  standing  committees  of the Board of  Directors  include  the Audit
Committee and the  Compensation  Committee.  No director missed a meeting of the
Board of  Directors  or a meeting of any Board  committee  on which the director
served. The Board does not have a standing nominating or similar committee.

     Audit  Committee.  The  Audit  Committee  held  two meetings in fiscal year
1996.  Committee  members  are  Mr. Libbey (Chair) and Mr. Hajjar. The Committee
reviews  Control  Data's  annual  financial  statements;  makes  recommendations
regarding  Control  Data's  independent  auditors and scope of auditor services;
reviews  the  adequacy  of  accounting  and audit policies, compliance assurance
procedures  and  internal  controls;  reviews  nonaudit  services  performed  by
auditors  to  maintain  auditors'  independence;  and  reports  to  the Board of
Directors  on  disclosure  adequacy  and adherence to accounting principles. The
Audit  Committee  also  appoints  the  Company's  Retirement Committee, which is
responsible for administering the Company's U.S. qualified retirement plans.

     Compensation  Committee.  The  Compensation  Committee held two meetings in
fiscal  year  1996.  Committee  members  are  Mr. Dove (Chair), Mr. Bell and Mr.
Gumucio.  The  Committee  reviews compensation philosophy and major compensation
and  benefits  programs  for  executives;  administers  certain stock plans; and
approves executive officers' and directors' compensation.

EXECUTIVE OFFICERS

     The executive officers of the Company are as follows:


          NAME             AGE                           POSITION
- -------------------------- ----- -----------------------------------------------

James E. Ousley  .........  51   President and Chief Executive Officer

Joseph F. Killoran  ......  56   Vice President and Chief Financial Officer

Ruth A. Rich  ............  53   Vice President, Human  Resources/Administration
                                 and Sec- retary

Dieter Porzel ............  60   Vice   President,   Europe/Middle   East/Africa
                                 Region

Michael G. Eleftheriou ...  52   Vice President, Technical Services

David B. Folsom  .........  49   Vice President,  Electronic  Commerce Solutions
                                 and Chief Technology Officer

Arnold (Nol) Rutgers   ...  55   Vice President, Sales and Operations,  U.S. and
                                 Asia

     Executive officers of the Company are elected by the Board of Directors and
serve at the Board's  discretion.  There are no family  relationships  among any
directors or executive officers of the Company.

     James E. Ousley has been President and Chief  Executive  Officer of Control
Data since August 1992. Mr. Ousley was President of Ceridian's Computer Products
business from April 1989 to July 1992;  and Executive Vice President of Ceridian
from February 1990 to July 1992.

     Joseph F. Killoran has been Vice President and Chief  Financial  Officer of
Control Data since February 1994. Mr. Killoran was Vice President and Controller
of  Control  Data from  August  1992 to January  1994;  and Vice  President  and
Controller for Ceridian's Computer Products business from 1989 to July 1992.

     Ruth A. Rich has been Vice  President,  Human  Resources/Administration  of
Control Data since August 1992 and Secretary since March 1997. Ms. Rich was Vice
President,  Human Resources/  Administration  for Ceridian's  Computer  Products
business  from  November  1990  to  July  1992;   and  Vice   President,   Human
Resources/Administration for Ceridian's Information Services Group from May 1986
to November 1990.

                                       A-5


<PAGE>


     Dieter Porzel has been Vice President,  Europe/Middle East/Africa Region of
Control Data since February 1993. Mr. Porzel was Vice President,  Central Europe
Region for Control Data from August 1992 to January  1993;  and Vice  President,
Central  Europe Region of  Ceridian's  Computer  Products  business from 1987 to
1992.

     Michael G.  Eleftheriou  has been Vice  President,  Technical  Services  of
Control  Data  since  January  1996.  Mr.  Eleftheriou  was  Vice  President  of
Assessment  and Planning  for Control  Data from October 1994 to December  1995;
General Manager of United States Systems Integration Operations from May 1994 to
September  1994;  General  Manager of Control  Data Mexico from  October 1992 to
April 1994;  General Manager of Worldwide Sales and Services from August 1992 to
September  1992;  General  Manager,  Worldwide  Sales and Services of Ceridian's
Computer  Products business from December 1991 to July 1992; and General Manager
of Ceridian's Cyber Marketing business from April 1990 to November 1991.

     David B. Folsom has been Vice President,  Electronic  Commerce Solutions of
Control Data since October 1994. In addition,  in March 1997, Mr. Folsom assumed
the  role of Chief  Technology  Officer.  Mr.  Folsom  was  General  Manager  of
Networking  Competency  Centers of Control  Data from August  1992 to  September
1994;  and Director of Software  Development  for Ceridian's  Computer  Products
business from 1990 to July 1992.

     Arnold (Nol) Rutgers has been Vice President,  Sales and  Operations,  U.S.
and Asia of Control Data since October  1996.  Mr.  Rutgers was Vice  President,
Asia/Pacific Region from June 1995 to September 1996; Vice President,  Marketing
from October 1994 to May 1995; General Manager of Strategic Planning for Control
Data from August  1992 to  September  1994;  and  General  Manager of  Strategic
Planning for Ceridian's  Computer  Products business from September 1989 to July
1992.

EXECUTIVE COMPENSATION

     The  following  table sets forth the fiscal year 1996 annual and  long-term
compensation for the Company's Chief Executive Officer and the next four highest
paid executive  officers,  as well as the total  compensation  paid to each such
individual during fiscal years 1994 and 1995:

<TABLE>
<CAPTION>
                                                                                          LONG-TERM COMPENSATION                    
                                                                                  ----------------------------------------          
                                                                                     AWARDS              PAYOUTS                    
                                              ANNUAL COMPENSATION                 -------------- -------------------------          
                                   --------------------------------------------                   NUMBER OF                         
                                                                     OTHER         RESTRICTED    SECURITIES                ALL OTHER
                                                                    ANNUAL           STOCK       UNDERLYING     LTIP       COMPEN-  
        NAME AND PRINCIPAL         FISCAL  SALARY (1)  BONUS     COMPENSATION   AWARD(S) (2)   OPTIONS/SARS    PAYOUTS    SATION (3)
             POSITION               YEAR   ($)         ($)            ($)           ($)           (#)           ($)            ($)  
- ----------------------------------- ------ ----------- --------- -------------- -------------- ------------   ---------  -----------
<S>                                 <C>        <C>      <C>            <C>            <C>             <C>         <C>      <C>      
James E. Ousley ..................  1996       398,846  320,000        0                    0              0      0        3,750    
 President and Chief Executive      1995       385,000  383,000        0              318,750              0      0        3,750    
 Officer                            1994       380,944   77,000        0                    0              0      0            0    
Dieter Porzel (4)  ...............  1996       239,320   47,864        0                    0              0      0            0    
 Vice President, Europe/Middle      1995       262,458   67,160        0                    0              0      0            0    
 East and Africa                    1994       239,432   29,929        0                    0         25,000      0            0    
Joseph F. Killoran ...............  1996       198,077  100,000        0                    0              0      0        3,750    
 Vice President and Chief           1995       175,000  137,500        0                    0              0      0        3,750    
 Financial Officer                  1994       173,269   21,875        0                    0         25,000      0            0    
Arnold (Nol) Rutgers  ............  1996       133,846   52,500        0                    0         15,000      0        3,750    
 Vice President, Sales and          1995       102,426   65,000        0                    0         10,000      0        3,750    
 Operations, USA and Asia           1994        98,709   10,573        0                    0         25,000      0            0    
Ruth A. Rich .....................  1996       129,231   65,000        0                    0              0      0        3,750    
 Vice President, Human Resources/   1995       120,000   60,000        0                    0              0      0        3,750    
 Administration and Secretary       1994       120,000   15,000        0                    0         10,000      0            0    
</TABLE>

- ----------


(1)  The amounts  reflected  in "Salary"  include the named  executive's  salary
     deferral  contributions to the Company's Personal Investment Plan, which is
     a savings plan qualified  under Sections  401(a) and 401(k) of the Internal
     Revenue Code, for the period indicated.

                                       A-6


<PAGE>
(2)  Reflects a restricted  stock award of 50,000  shares.  Of the 50,000 shares
     granted,  restrictions  on  16,666  shares  lapsed  on  July  5,  1995  and
     restrictions  on 16,666 shares lapsed on January 2, 1997. The  restrictions
     on the remaining shares will lapse immediately prior to the consummation of
     the Offer. Any dividends  declared by the Company on its Common Stock would
     be  payable  to Mr.  Ousley  on his  restricted  shares.  The  value of the
     restricted  stock  holdings  that had not lapsed at the end of fiscal  year
     1996 was $733,348.

(3)  "All Other Compensation" reflects, in each instance, a discretionary profit
     sharing  contribution  made by the Company on behalf of the named executive
     under the  Company's  Personal  Investment  Plan for fiscal year 1996.  For
     fiscal years 1995 and 1996, each U.S. employee received, upon the Company's
     attainment  of  certain  financial  objectives  determined  by the Board of
     Directors,  an amount equal to two and one-half percent (2 1/2 %) of annual
     compensation  up  to  $150,000,   or  a  maximum  contribution  of  $3,750.
     Contributions for future fiscal years and any related financial  objectives
     will be determined by the Board of Directors.

(4)  All amounts for Mr.  Porzel were paid in Deutsche  Marks and  converted  to
     U.S. dollar equivalents at the exchange rates prevailing on the last day of
     the applicable fiscal year. Amounts paid in fiscal year 1996 were converted
     at the rate prevailing on December 31, 1996 (0.6450).

OPTIONS/SAR GRANTS IN LAST FISCAL YEAR

     There were no  options/SARs  granted to the named  executives  during  1996
except the following:

<TABLE>
<CAPTION>
                                                                                          POTENTIAL REALIZABLE
                                                                                            VALUE AT ASSUMED
                                                                                            ANNUAL RATES OF
                                                                                              STOCK PRICE
                                                                                            APPRECIATION FOR
                                             INDIVIDUAL GRANTS (1)                          OPTION TERM (2)
                         --------------------------------------------------------------  ----------------------
                          NUMBER OF        % OF TOTAL
                          SECURITIES       OPTIONS/ SARS
                          UNDERLYING       GRANTED TO       EXERCISE OR
                         OPTIONS/ SARS     EMPLOYEES IN     BASE PRICE     EXPIRATION
       NAME              GRANTED (#)       FISCAL YEAR      ($/SHARE)        DATE        5% ($)       10% ($)
- ----------------------   ---------------   --------------   ------------   -----------   ----------   ---------
<S>                      <C>               <C>              <C>            <C>           <C>          <C>
Arnold Rutgers  ......      15,000            6.8%           $18.875       7/24/06       $178,365     $450,165
</TABLE>
- ----------

(1)  The option gives the optionee the right to purchase  Common Stock.  No SARs
     were granted  separately or in tandem with the option.  The options  become
     exercisable  as to one-third of the shares subject to the option on each of
     the  three  succeeding  anniversaries  of the date of  grant.  Following  a
     "change  of  control  termination,"  the  option  will  become  immediately
     exercisable.  A "change of control  termination"  means (i) the  optionee's
     termination  of  employment by the Company for reasons other than a willful
     failure to perform his or her employment  duties or conduct  constituting a
     felony  involving  moral  turpitude;  or (ii) the termination of employment
     with the Company by the  optionee  for "good  reason,"  which is  generally
     defined as an adverse change in the optionee's responsibilities, authority,
     compensation or working conditions,  or a material breach of the optionee's
     employment  agreement by the Company.  Such  termination of employment must
     occur within two years of a "change of control,"  which is defined as (i) a
     merger  or  consolidation  involving  the  Company  if less than 50% of the
     Company's  voting stock after the business  combination  is held by persons
     who were stockholders before the business  combination;  (ii) a sale of the
     assets of the Company  substantially  as an entity;  (iii)  ownership  by a
     person or group of at least 20% of the Company's  voting  securities;  (iv)
     approval by the  stockholders of a plan for the liquidation of the Company;
     and (v)  certain  changes  in the  composition  of the  Company's  Board of
     Directors.  The options  will be  accelerated  and the holders will receive
     cash  therefor  at the  time of the  Merger,  as  described  in the  Merger
     Agreement.

(2)  The  potential  realizable  value of the  option  grant has been  estimated
     assuming the stated per share market  price of the  Company's  Common Stock
     appreciates in value at annualized  rates of 5% and 10% from the grant date
     to the date that the option  expires,  net of the  exercise  price that the
     optionee must pay for the shares  underlying such option.  However,  actual
     gains,  if any, from the exercise of these options and from holding  shares
     of the  Company's  Common  Stock  depend on the future  performance  of the
     Common  Stock  and  overall  stock  market  conditions.  Whether  the gains
     reflected in this Table will actually be achieved cannot be assured.

                                       A-7
<PAGE>


AGGREGATED  OPTIONS/SAR  EXERCISES  IN LAST  FISCAL  YEAR  AND  FISCAL  YEAR-END
OPTIONS/SAR VALUES

     The following table summarizes the options and SARs exercised during fiscal
year 1996 and  presents  the value of  unexercised  options and SARs held by the
named executives at December 31, 1996:

<TABLE>
<CAPTION>
                                                                    SECURITIES UNDERLYING        VALUE OF UNEXERCISED
                                                                         UNEXERCISED                IN-THE-MONEY
                                                                        OPTIONS/ SARS              OPTIONS/ SARS
                                                                  AT FISCAL YEAR-END (1) (#)     AT FY-END (2) ($)
                             SHARES ACQUIRED        VALUE              EXERCISABLE (E)            EXERCISABLE (E)
         NAME                ON EXERCISE (#)     REALIZED ($)         UNEXERCISABLE(U)           UNEXERCISABLE (U)
- --------------------------   -----------------   --------------   ----------------------------   ---------------------
<S>                                 <C>               <C>                     <C>                     <C>
James E. Ousley  .........               0                  0                 351,677(E)              $  5,015,553(E)
                                                                                    0(U)              $          0(U)

Dieter Porzel ............          54,993            723,990                  33,333(E)              $    430,206(E)
                                                                               16,668(U)              $    217,725(U)
Joseph F. Killoran  ......               0                  0                  99,066(E)              $  1,384,456(E)
                                                                                8,334(U)              $    112,716(U)
Arnold Rutgers   .........               0                  0                  31,849(E)              $    441,104(E)
                                                                               30,001(U)              $    218,346(U)
Ruth A. Rich  ............               0                  0                  99,896(E)              $  1,440,979(E)
                                                                                3,334(U)              $     47,926(U)
</TABLE>

- ----------


(1)  All are options to purchase  Common  Stock.  No SARs were  exercised or are
     outstanding,  whether  free  standing  or in tandem with the  options.  The
     number of unexercised  options  includes shares that may be issued upon the
     exercise  of  replacement  options  which  were  provided  to the  optionee
     pursuant to the  provisions  of the spin-off of the Company  from  Ceridian
     Corporation to replace  Ceridian stock options held by such optionee at the
     time of the  spin-off.  The  number of  shares  subject  to the  optionee's
     replacement  options and the per share  exercise  price were  calculated to
     preserve the economic  value of the optionee's  Ceridian stock options.  In
     addition,  the replacement options contain the same terms and conditions as
     the  Ceridian   options,   and  the  replacement   options'   duration  and
     exercisability  are  measured  according  to the  dates  that the  Ceridian
     options were granted.  All options will be accelerated and the holders will
     receive cash therefor at the time of the Merger, as described in the Merger
     Agreement.

(2)  The values are based on the difference between $22.00 (the closing price of
     the  Company's  Common Stock on December 31, 1996 as reported by the Nasdaq
     National Market) and the options' exercise price.

PENSION PLAN AND BENEFIT EQUALIZATION PLAN

     The  Company  maintains a defined  benefit  pension  plan (the  "Retirement
Plan") for its U.S.  employees  (including  executive  officers and employees of
U.S. subsidiaries),  which is funded by employee salary reductions and after-tax
contributions and Company contributions.  However,  effective December 20, 1992,
benefits  under the Retirement  Plan were frozen,  meaning that no employees may
become  participants in the plan after that date, that pension  benefits for all
employees  currently  participating in the Retirement Plan will be computed only
on the basis of compensation  paid and years of service  completed to that date,
and that no future  contributions  will be made to the Retirement Plan except to
the extent required by the funding  standards of ERISA and the Internal  Revenue
Code.  All current  Retirement  Plan  participants  also acquired a fully vested
interest in their pension benefits.

     Generally,  the amount of the annual  pension  benefit under the Retirement
Plan equals an annual base pension of 1.2% of the  participant's  average annual
compensation  during the participant's  highest  consecutive  five-year earnings
period ending on or before  December 20, 1992,  multiplied by the  participant's
credited  years of service as of such date.  In  addition,  the  participant  is
entitled to an annual  excess  pension  benefit of 0.4% of such  average  annual
compensation  in excess of the  participant's  "break  point"  multiplied by the
participant's  years of credited  service as of December 20, 1992,  or 30 years,
whichever is less. A participant's "annual  compensation"  generally consists of
salary  and any  annual  bonus  paid under the  Executive  Incentive  Plan.  The
participant's  "break  point"  amount  essentially  represents an average of the
social  security wage bases to which a participant  has been subject over his or
her career,  and has been frozen at the amount determined for the participant as
of December 20, 1992.

                                       A-8


<PAGE>


     The  Company  also  maintains  a Benefit  Equalization  Plan,  under  which
benefits  were also frozen on December 20, 1992. In 1992,  the Internal  Revenue
Code limited the annual  benefits  payable from the Retirement  Plan at $112,221
and provided that  compensation in excess of $228,860 per year could not be used
in calculating benefits under the Company's Retirement Plan described above. The
Benefit  Equalization Plan provides employees (including certain named executive
officers) with supplemental  pension benefits so that they will receive,  in the
aggregate,  the benefits that they would have been entitled to receive under the
frozen  Retirement  Plan  had  these  limits  not  been  imposed.   The  Benefit
Equalization Plan is an unfunded plan, and any amounts payable remain subject to
the claims of the  Company's  creditors.  Any benefits  payable to a participant
under the  Benefit  Equalization  Plan  commence at the same time as the pension
benefits payable under the Retirement Plan.

     The estimated annual benefits payable under the Retirement Plan and Benefit
Equalization  Plan  upon  retirement  at age 65  (expressed  in  the  form  of a
single-life  annuity) for each of the named  executive  officers are as follows:
Mr. Ousley,  $75,009; Ms. Rich, $45,728; and Mr. Rutgers,  $10,325. The years of
service this calculation  represents at the time the plan was frozen in 1992 was
24.5 years, 25.9 and 10.0 years, respectively.  Mr. Rutgers also participated in
an insured defined benefit plan in the Netherlands from 1967 to 1982. The amount
of the  benefit  payable to Mr.  Rutgers  from the  Netherlands  plan is 1/40 of
eligible salary multiplied by years of service. An estimate of his benefit under
the  Netherlands  plan  cannot  be  calculated  at  this  time  because  certain
beneficiaries  are entitled to receive a portion of that benefit when it becomes
payable.

     Neither Mr. Killoran nor Mr. Porzel  participated  in the Retirement  Plan.
Mr.  Killoran  had   participated  in  a  pension  plan  sponsored  by  Ceridian
Corporation  for  employees  of a company  acquired by Ceridian  and  received a
distribution from Ceridian under that plan. The German subsidiary of the Company
maintains  a defined  benefit  plan for its  employees,  including  Mr.  Porzel.
Generally,  the amount of the  benefit is 0.5% of  eligible  earnings  up to the
German social security wage base for each year of credited service, plus 2.0% of
eligible  earnings above the social security wage base for each year of credited
service.  Based upon present  earnings,  the estimated annual benefit payable to
Mr. Porzel under the German  retirement  plan at age 65 is an amount of Deutsche
Marks  equivalent  to $75,295,  calculated  at the exchange  rate  prevailing on
December 31, 1996. Future increases in Mr. Porzel's  compensation,  if any, will
not affect these amounts.

EMPLOYMENT AGREEMENTS

     The Company  has  severance  agreements,  expiring  January 4 , 1998,  with
Messrs.  Ousley and Killoran  under which the  executive  will  receive  certain
severance   payments  and  benefits  in  the  event  of  a  "change  of  control
termination."  Such term has the same  meaning set forth in the  Company's  1992
Equity  Incentive  Plan,  except  the  severance  agreements  require  that  the
executive's  termination  of  employment  occur within one year of the change of
control event in order to entitle him to the severance pay and benefits provided
by his severance agreement.  If a change of control termination occurs under his
severance agreement,  Mr. Ousley is entitled to receive,  within five days after
such  termination,  a severance  payment equal to approximately  three times his
average annual taxable compensation for the five tax years preceding the year in
which the change of control event occurs.  Mr.  Killoran's  severance payment is
approximately  one and one-half times his average  annual  taxable  compensation
over the same five-year period. In the event of a change of control termination,
the Company is also  required to continue  for 36 months the  executive's  life,
health,  dental and disability benefits at a level comparable to the benefits he
was receiving before the change of control termination. The severance agreements
also provide that all change of control  compensation  payable to the  executive
must be less than the amount which would be  considered  a  "parachute  payment"
under  Section  280G of the  Internal  Revenue  Code.  To the  extent  that  the
severance  payment  to which the  executive  is  entitled  under  his  severance
agreement,  together  with any other change of control  compensation  payable to
him, would exceed this amount,  the executive  must designate  which payments or
change of control  compensation  should be reduced or  eliminated so as to avoid
receipt of a parachute payment.

     The German subsidiary of the Company,  Control Data GmbH, has an employment
agreement  with Mr.  Porzel  which is  terminable  by Control  Data GmbH upon 36
months'  notice or upon Mr.  Porzel  reaching age 65, and by Mr. Porzel upon six
months' notice. Under this agreement, Mr. Porzel is re-

                                       A-9


<PAGE>


quired to devote full time to serve as the "Vorsitzender der Geschaeftsfuehrung"
(chief  executive  officer) of Control Data GmbH. As such, he is prohibited from
disclosing confidential  information about the Company during and after the term
of  employment,  and he is required to disclose and assign to Control Data GmbH,
in accordance  with applicable  German law, any  intellectual  property  created
during his  employment.  The agreement also provides for  remuneration at levels
determined  in accordance  with the  compensation  policies of the Company,  and
prescribes certain acts that require the prior approval of the Company. Upon any
termination  of  his  employment,   Mr.  Porzel  will  be  entitled  to  receive
remuneration at then-current levels for the balance of his notice period.

COMPENSATION COMMITTEE REPORT

     Decisions on compensation of the Company's executive officers generally are
made by the Compensation Committee of the Board of Directors.  The three members
of the  Compensation  Committee  are  non-employee  directors as defined in Rule
16b-3 of the  Securities  Exchange Act of 1934.  Decisions  by the  Compensation
Committee  relating to the compensation of the Company's  executive officers are
reviewed  by the full  Board,  except  for  decisions  about  awards  under  the
Company's  1992 Equity  Incentive  Plan which are made by the Committee in order
for the awards under such Plan to satisfy Rule 16b-3.

     Compensation  Philosophy  and  Relationship  of  Performance.  This  report
reflects the Compensation  Committee's executive officer compensation philosophy
as  endorsed  by the Board of  Directors.  The  resulting  actions  taken by the
Company  are  shown in the  compensation  tables  supporting  this  report.  The
Compensation  Committee  either approves or recommends to the Board of Directors
compensation levels and compensation  components for the executive officers. All
of the  non-employee  members  of the  Board of  Directors  review  compensation
actions  affecting  the  Chief  Executive  Officer.  This  report  reflects  the
compensation philosophy for fiscal year 1996.

     The Compensation  Committee's executive  compensation policies are designed
to enhance the financial performance of the Company, and thus stockholder value,
by  significantly  aligning the financial  interests of the key executives  with
those of stockholders.

     The executive  compensation  program is viewed in total  considering all of
the component parts: base salary, annual performance  incentives,  benefits, and
long-term  incentive  opportunity  in the form of stock  options and  restricted
stock grants. The annual compensation components consist generally of lower base
salaries than those of comparable companies combined with higher incentive plans
based  on the  Company's  financial  performance  and  performance  against  its
strategic initiatives. Long-term incentive is based on stock performance through
stock options and restricted stock grants. The Compensation Committee's position
is that stock ownership by management is beneficial in aligning management's and
stockholders'  interests in the enhancement of stockholder value.  Overall,  the
intent is to have more significant emphasis on variable compensation  components
and less on  fixed  components.  The  Committee  believes  this  philosophy  and
structure are in the best interests of the stockholders.

     Compensation  reflected  in the  previous  tables  paid  to  the  Company's
executive  officers is from January 1, 1994 to December 31, 1996,  consisting of
the following elements: base salary,  performance incentives and deferred profit
sharing  contributions  for such period,  and stock options and restricted stock
granted under the Company's 1992 Equity Incentive Plan.

     Recent tax law changes,  effective  for fiscal year 1994 and future  years,
may  disallow  deductions  for  compensation  paid by the Company to each of the
Company's  named  executive  officers  if  the  officer's  compensation  exceeds
$1,000,000. Special rules apply for "performance-based" compensation,  including
compensation  resulting  from stock  options.  The 1992  Equity  Incentive  Plan
includes a  per-employee  limit on the  options  that can be granted to salaried
employees, including the named executive officers, during any calendar year. For
other  performance-based  compensation plans,  including the Executive Incentive
Plan described  below,  the Company intends to take whatever steps are necessary
to comply with the deduction limits imposed by these tax provisions.

     Annual  Incentive  Arrangements.  The  Company  has  adopted  an  Executive
Incentive  Plan  which  provides annual incentive compensation to key employees,
including named executive officers, who by

                                      A-10


<PAGE>


the nature of their  positions,  are deemed  sufficiently  accountable to impact
directly the strategic objectives and financial results of the Company. The Plan
is approved by the  Compensation  Committee,  whose  members are not eligible to
participate in the Plan.

     The  Committee  believes  that key  executives  should  have a  significant
proportion  of  total  cash  compensation  subject  to  specific  strategic  and
financial  measurements.  At the  beginning  of  each  fiscal  year,  or upon an
individual  being  appointed an executive  officer,  the Committee sets a target
bonus  amount  for each  executive  officer  expressed  as a  percentage  of the
executive's base salary.  Performance  goals for purposes of determining  annual
incentive  compensation  are  established  which  include net earnings and other
strategic  and  financial  measurements.  Generally,  the  target  level  of net
earnings is assigned a  significantly  greater weight than the aggregate  weight
assigned  to all  remaining  factors.  Senior  management,  including  the named
executives,  have the potential to earn significantly higher levels of incentive
compensation  if  the  Company  exceeds  its  targets.   The  target   incentive
compensation  levels  established by the Compensation  Committee for fiscal year
1996  for  Messrs.  Porzel,   Rutgers,  and  Killoran  and  for  Ms.  Rich  were
approximately 50% of annual base salary.

     The performance goals established at the beginning of fiscal year 1996 were
based on several strategic and financial measurements,  including a target level
of net earnings and restructure management.  As noted above, the target level of
net  earnings  was  assigned  a  significantly  greater  weight  than the weight
assigned  to other  factors.  Messrs.  Porzel  and  Rutgers  were also  assigned
geographically specific financial  measurements.  Based on the evaluation of the
above criteria, the Compensation Committee awarded incentive payments for fiscal
1996 at 40% of the target incentive  compensation  level for Mr. Porzel,  70% of
the target incentive  compensation level for Mr. Rutgers, and 100% of the target
incentive compensation level for Mr. Killoran and Ms. Rich.

     1992 Equity  Incentive  Plan.  The  Compensation  Committee of the Board of
Directors  determines  stock option grants to eligible  employees  including the
named  executives.  The Committee  believes  that options  granted to management
reinforce the  Committee's  philosophy that  management  compensation  should be
closely  linked with  shareholder  value.  Stock  options  have been  granted to
approximately 65% of the Company's management worldwide.

     Other  Compensation  Plans.  Control Data has adopted  certain  broad-based
employee benefit plans in which all U.S.  employees,  including Messrs.  Ousley,
Killoran,  Rutgers, and Ms. Rich, are permitted to participate on the same terms
and  conditions  relating  to  eligibility  and  generally  subject  to the same
limitations on the amounts that may be contributed or the benefits payable under
those plans.  Under the Company's  Personal  Investment Plan, which is a defined
contribution  plan qualified under the Internal Revenue Code Sections 401(a) and
401(k), participants,  including the aforementioned executives, can contribute a
percentage  of  their  annual  compensation.  Beginning  in  1993,  the  Company
established a  discretionary  profit sharing  contribution  contingent  upon the
Company  reaching a target  level of net  earnings.  The  Company  made a profit
sharing  contribution of 2.5% of annual compensation up to a maximum of $150,000
for fiscal year 1996 to all  eligible  U.S.  employees.  Each of the U.S.  named
executives  received a profit sharing  contribution  of $3,750 to their Personal
Investment  Plan  accounts.  The Company  permits  participants  to invest their
salary  deferral  contributions  and any  Company  matching  or  profit  sharing
contributions  in a Company  Common Stock Fund in order to align the  employees'
and the  stockholders'  interests in the  enhancement of stockholder  value.  To
further  align these  interests,  the  Company  has  adopted an  Employee  Stock
Purchase Plan, approved by the stockholders in 1993, through which employees may
purchase shares of the Company's Common Stock.  Other than these purchases of or
investments  in Common  Stock and the  Company's  discretionary  profit  sharing
contribution,  benefits  under the Company's  broad-based  benefit plans are not
tied to Company performance.

     Mr.  Ousley's  1996  Compensation.  In  general,  compensation  for the CEO
aligns  with  the  philosophies  and  practices  discussed  above  for executive
officers.  All  compensation  determinations  and  stock  grants  to the CEO are
reviewed by the Committee with the Board of Directors.

     At  the  beginning  of  each  fiscal  year,   the  Committee   reviews  the
compensation  level of the CEO. The  Committee  considers  data on  compensation
history and competitive  practices in determining the CEO's total  compensation,
and reviews the data in light of the Company's philosophy that the compen-

                                      A-11


<PAGE>


sation of the CEO should be influenced primarily by the financial performance of
the Company.  This places a meaningful portion of the CEO's compensation at risk
along with the stockholders, as well as offering significant, market-competitive
upside  opportunities  based on the Company's  performance.  The objective is to
motivate and incent the CEO to achieve a level of Company performance consistent
with the Company's strategic business objectives.

     During  fiscal year 1996,  the  Committee  reviewed  Mr.  Ousley's  salary,
considering the compensation comparative data for CEO positions, the Committee's
philosophy on positioning Mr.  Ousley's  compensation as compared to market data
and his  overall  effectiveness  in  leading  the  Company.  As a result of this
review,  the Committee  decided to increase Mr.  Ousley's  annual base salary by
$15,000.

     For fiscal year 1996, the CEO's performance goals were established based on
strategic and financial measurements,  including a target level of net earnings,
restructure management and sale of non-strategic assets. The target level of net
earnings was assigned a significantly greater weight than the weight assigned to
other  factors.  In  evaluating  Mr.  Ousley's  performance  for the  purpose of
determining his incentive compensation for such period, the Committee considered
the  Company's   performance   against  its  financial,   major  refocusing  and
restructuring  objectives,  implementation of the Company's  continuing strategy
shift,  and  his  demonstrated  leadership.   Based  on  this  evaluation,   the
Compensation  Committee  awarded an  incentive  payment of 100% of Mr.  Ousley's
target  incentive  compensation  level which was 80% of his year-end  annualized
base salary.

     The  Compensation  Committee is satisfied  that the cash  compensation  and
long-term  incentive  plans in the form of stock  option  and  restricted  stock
awards  provided  to the CEO and to the  executive  officers  of the Company are
structured and have operated to create a high degree of alignment with increased
profitability and shareholder value.

     Grant A. Dove         Marcelo A. Gumucio         W. Donald Bell



                                      A-12


<PAGE>


PERFORMANCE GRAPH

     The following performance graph compares the cumulative  stockholder return
on the  Company's  Common Stock with the S&P 500  Composite  Stock Index and the
Nasdaq Computer and Data Processing Stock Index. The comparison assumes $100 was
invested  as of August 1, 1992 (the date of the  spin-off  of the  Company  from
Ceridian  Corporation)  in  Common  Stock  of the  Company  and in  each  of the
foregoing indices and assumes reinvestment of dividends. The Nasdaq Computer and
Data  Processing  Stock  Index was chosen  for  comparison  purposes  because it
encompasses  over 200  companies,  many of which are  comparable  in size to the
Company.

                  COMPARISON OF CUMULATIVE TOTAL RETURN AMONG
                      THE COMPANY, S&P 500 AND PEER GROUP

                               [GRAPHIC OMITTED]
<TABLE>
<S>                               <C>          <C>           <C>           <C>             <C>              <C>    
Control Data Systems, Inc.        $100.00      $110.61       $122.73       $83.33          $237.88          $266.67
S&P 500 Composite  Stock Index    $100.00      $104.00       $114.14      $115.70          $159.23          $196.32
NASDAQ                            $100.00      $117.63       $124.50      $151.15          $230.19          $284.18
</TABLE>


COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT

     Section 16(a) of the Securities Exchange Act of 1934 requires the Company's
executive  officers and  directors,  and persons who own more than 10 percent of
the Company's Common Stock, to file with the Securities and Exchange  Commission
initial reports of ownership and reports of changes in ownership of Common Stock
and other equity securities of the Company. Officers, directors and greater than
ten percent stockholders  ("Insiders") are required by Commission  regulation to
furnish the Company with copies of all Section 16(a) forms they file.

     To the Company's knowledge,  based solely on a review of the copies of such
reports  furnished  to the  Company,  during the fiscal year ended  December 31,
1996, all Section 16(a) filing requirements applicable to Insiders were complied
with.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     Certain Beneficial Owners. The following table shows information concerning
each  person who to the best of Control  Data's  knowledge,  was the  beneficial
owner of more than 5% of Control Data Common  Stock as of March 17, 1997,  which
was the most recent  practicable date as of which the Company was able to obtain
stock ownership information regarding non-management stockholders.



                                      A-13


<PAGE>


                                                       AMOUNT AND     
                                                        NATURE OF       PERCENT
NAME AND ADDRESS OF BENEFICIAL OWNER              BENEFICIAL OWNERSHIP  OF CLASS
- ------------------------------------------------- --------------------- --------
   Massachusetts Financial Services Company (1) .       887,755         7.0%
     500 Boylston Street
     Boston, MA 02116

   First Bank Systems, Inc. (2)   ...............       752,414         6.0%
     601 2nd Avenue South
     Minneapolis, MN 55402

   Leon G. Cooperman (3) ........................       730,000         5.8%
     c/o Omega Advisors, Inc.
     88 Pine Street, 31st Floor
     New York, NY 10005

- ----------

(1)  Represents  sole power to vote 731,155  shares and sole power to dispose of
     887,755 shares.

(2)  Represents  sole power to vote 725,665  shares and sole power to dispose of
     505,365 shares.

(3)  Represents  sole power to vote 583,600  shares and sole power to dispose of
     583,600 shares.

     Management Stockholdings. The following table shows the Control Data Common
Stock beneficially  owned by each Control Data director,  each executive officer
named in the  Summary  Compensation  Table and by all  directors  and  executive
officers (including the named individuals as a group) as of July 7, 1997.

<TABLE>
<CAPTION>
                                                                              AMOUNT AND
                                                                               NATURE OF        PERCENT
NAME AND ADDRESS OF BENEFICIAL OWNER                                     BENEFICIAL OWNERSHIP   OF CLASS
- ------------------------------------------------------------------------ ---------------------- ---------
<S>                                                                             <C>               <C>  
    W. Donald Bell   ...................................................         34,999           0.3% 
    Grant A. Dove    ...................................................         34,999           0.3% 
    Marcelo A. Gumucio  ................................................         34,999           0.3% 
    W. Douglas Hajjar   ................................................         59,999           0.5% 
    Keith A. Libbey  ...................................................         35,249           0.3% 
    James E. Ousley  ...................................................        401,906           3.1% 
    Joseph F. Killoran  ................................................        109,206           0.8% 
    Dieter Porzel ......................................................         50,001           0.3% 
    Ruth A. Rich  ......................................................        104,173           0.8% 
    Arnold Rutgers   ...................................................         43,144           0.3% 
    All directors and executive officers as a group (12 persons)  ......        989,370           7.3% 
</TABLE>

- ----------

(1)  Except as otherwise noted, each person or group named in the table has sole
     power to vote and dispose of all shares listed for such person or group. Of
     the total number of Mr. Ousley's  shares,  16,668 are shares over which Mr.
     Ousley  has sole  voting  power but which are  subject to  restrictions  on
     disposition. Shares not currently outstanding but deemed beneficially owned
     by virtue of the right of the person to acquire them as of July 7, 1997, or
     within 60 days of such date (on or before  September 5, 1997),  are treated
     as also  outstanding  only when determining the amount and percent owned by
     such person or by the group.  Shares covered by  unexercisable  portions of
     options are not  considered  outstanding  but are subject to the receipt of
     cash  therefor in connection  with the Merger.  Such  additional  shares so
     considered  outstanding are as follows:  Mr. Bell, 34,999 shares; Mr. Dove,
     34,999 shares; Mr. Gumucio,  34,999 shares; Mr. Hajjar,  34,999 shares, Mr.
     Libbey,  34,999 shares; Mr. Ousley,  351,677 shares; Mr. Killoran,  107,400
     shares;  Mr. Porzel,  50,001 shares; Ms. Rich, 103,230 shares; Mr. Rutgers,
     41,849  shares;  all directors and executive  officers as a group,  906,825
     shares.

                                      A-14


<PAGE>


                                                                         ANNEX B

                                  [LETTERHEAD]

July 8, 1997

Board of Directors
Control Data Systems, Inc.
4201 Lexington Avenue North
Arden Hills, MN 55126

Gentlemen:

You have requested our opinion as investment bankers as to the fairness,  from a
financial  point of view,  to the  holders of the  outstanding  shares of Common
Stock, par value $0.01 per share ("Common Stock") of Control Data Systems,  Inc.
(the "Company"),  of the terms of the Transaction (as hereinafter defined).  For
the  purposes  of  this  opinion,   the  "Transaction"  means  collectively  the
transactions  described  below  pursuant to that certain  Agreement  and Plan of
Merger  among the  Company,  CDSI  Holding  Corporation  ("Parent"),  a Delaware
corporation,  and  CDSI  Acquisition  Corp.  ("Acquisition"),   a  wholly  owned
subsidiary of Parent to be dated July 8, 1997 (the "Agreement").

As more  specifically  set forth in the Agreement,  and subject to certain terms
and  conditions  thereof,   Acquisition  has  agreed  to  purchase  all  of  the
outstanding shares of Common Stock at a price of $20.25 per share. Following the
closing  of the  Tender  Offer,  Acquisition  will be  merged  with and into the
Company (the "merger"),  and each outstanding share of Common Stock not acquired
by Acquisition  pursuant to the Tender Offer portion of the Transaction  will be
converted  into the right to receive $20.25 in cash (other than shares of Common
Stock held in the treasury of the Company or any subsidiary thereof).

In the ordinary course of its services,  Cowen & Company  ("Cowen") is regularly
engaged in the valuation and pricing of businesses  and their  securities and in
advising corporate securities issuers on related matters.

In arriving at our opinion, Cowen has, among other things:

(1)  reviewed  Control  Data's  financial  statements for the fiscal years ended
     December  31, 1995 and  December  31, 1996 and for the three month  periods
     ended  March 31, 1996 and March 31,  1997 and  certain  publicly  available
     filings with the  Securities  and  Exchange  Commission  and certain  other
     relevant financial and operating data of the Company;

(2)  reviewed a draft of the Agreement;

(3)  held  meetings and  discussions  with senior  management  of the Company to
     discuss  the  business,   operations,   competitive  position,   historical
     financial results and future prospects of the Company;

(4)  reviewed  financial  projections  furnished to us by the  management of the
     Company,  including, among other things, the capital structure,  sales, net
     income,  cash flow,  capital  requirements and other data of the Company we
     deemed relevant;

(5)  reviewed  Cowen research  estimates and First Call EPS consensus  estimates
     for the Company (collectively, the "Estimates");

(6)  reviewed  certain  financial  and stock market  information  regarding  the
     Company,  in comparison with similar  information  regarding  certain other
     publicly traded companies which we deemed relevant;

(7)  considered  the  financial  terms,  to the extent  publicly  available,  of
     selected recent business  transactions  which we deemed to be comparable in
     whole or in part to the Transaction;

                                      B-1


<PAGE>


(8)  analyzed the projections  provided by the management of the Company for the
     cash flows generated by the Company and its business units to determine the
     present value of the discounted cash flows;

(9) reviewed the historical prices,  price/earnings  ratios and trading activity
    of the Company  Common Stock from July 31, 1992 to July 8, 1997 and compared
    those  trading  histories  with  those of other  companies  which we  deemed
    relevant;

(10) reviewed the premiums  implied by the Agreement in comparison with premiums
     paid in other recent acquisitions and transactions deemed to be relevant;

(11) conducted such other studies, analysis,  inquiries and investigations as we
     deemed appropriate.

Cowen was not requested  to, and did not,  solicit  third party  indications  of
interest in  acquiring  all or  substantially  all of the stock or assets of the
Company or the assets of any of its business units.

On July 8, 1997,  the  closing  price of the Common  Stock of the Company in the
last transaction reported by NASDAQ was $15.6875 per share.

In rendering our opinion,  we relied upon the Company's  management with respect
to  the  accuracy  and  completeness  of the  financial  and  other  information
furnished to us as described  above.  With respect to the financial  projections
furnished to us by  management of the Company,  we have also assumed,  with your
consent,  that they have been reasonably  prepared on bases  reflecting the best
currently  available  estimates and  judgements of the Company'  management.  In
addition, with respect to the Estimates, the management of the Company confirmed
that such  Estimates  provide a  reasonable  basis  for our  opinion.  With your
consent, we have relied upon such projections and the Estimates in preparing our
opinion.

We have not assumed any  responsibility  for  independent  verification  of such
information,  including financial  information,  nor have we made an independent
evaluation or appraisal of any of the properties or assets of the Company.

With respect to all legal matters  relating to the Company and  Transaction,  we
have relied on the advice of legal counsel to the Company.  We have also assumed
that the  Transaction  will be  consummated  in a manner  that  complies  in all
respects with the applicable  provisions of the Securities Exchange Act of 1934,
as  amended,  and all other  applicable  federal and state  statutes,  rules and
regulations.  Our  opinion  is based on  economic,  monetary,  market  and other
conditions existing on the date hereof.

Cowen  will  receive a fee for  rendering  this  opinion.  In  addition,  in the
ordinary course of its business,  Cowen trades the debt and equity securities of
the  Company for its own account  and for the  accounts of its  customers,  and,
accordingly,  it  may  at  any  time  hold a long  or  short  position  in  such
securities.

On the basis of our review and analysis,  as described  above, it is our opinion
as investment  bankers that, as of the date hereof,  the financial  terms of the
Transaction are fair, from a financial point of view, to the stockholders of the
Company (other than Parent and its affiliates).

This letter does not constitute a recommendation  to any holders of common stock
to tender or not to tender their shares in the Transaction or how to vote in any
shareholder vote with respect to the Transaction.

Very truly yours,

/s/ Cowen & Company
Cowen & Company

                                       B-2

<PAGE>
                                 EXHIBIT INDEX



EXHIBIT                                     DESCRIPTION
- -------                                     -----------
(a)(1)     Form of Offer to Purchase dated July 15, 1997.

(a)(2)     Form of Letter of Transmittal

(a)(3)     Text of Joint Press Release issued by Control Data Systems,  Inc. and
           CDSI Holding Corporation dated July 9, 1997.

(a)(4)     Form of Letter to Stockholders from Control Data Systems,  Inc. dated
           July 15, 1997  (included  immediately prior  to  Schedule 14D-9 Cover
           Page).

(a)(5)     Opinion  of Cowen  &  Company  dated  July  8,  1997  (See Annex B of
           Schedule 14D-9)

(c)(1)     Agreement and Plan of Merger,  dated as of July 8, 1997, by and among
           Control  Data  Systems,  Inc.,  CDSI  Holding  Corporation  and  CDSI
           Acquisition Corp.

(c)(2)     Letter to CDSI Holding Corporation by Welsh, Carson, Anderson & Stowe
           VII, L.P. and WCAS Capital Partners III, L.P. dated July 8, 1997





                           Offer to Purchase for Cash
                     All Outstanding Shares of Common Stock
                                       of
                           CONTROL DATA SYSTEMS, INC.
                                       by
                             CDSI Acquisition Corp.
                          a Wholly-Owned Subsidiary of
                            CDSI Holding Corporation
                                       at
                              $20.25 Net Per Share

THE OFFER AND  WITHDRAWAL  RIGHTS WILL EXPIRE AT 12:00  MIDNIGHT,  NEW YORK CITY
TIME, ON MONDAY, AUGUST 11, 1997, UNLESS THE OFFER IS EXTENDED.

THE OFFER IS  CONDITIONED  UPON THERE BEING  VALIDLY  TENDERED AND NOT WITHDRAWN
PRIOR TO THE  EXPIRATION OF THE OFFER THAT NUMBER OF SHARES WHICH  REPRESENTS AT
LEAST FIFTY-ONE  PERCENT (51%) OF THE SHARES OF COMMON STOCK, $.01 PAR VALUE, OF
CONTROL DATA SYSTEMS, INC. (THE "COMPANY")  OUTSTANDING ON A FULLY DILUTED BASIS
(AS DEFINED HEREIN). THE OFFER IS ALSO SUBJECT TO CERTAIN OTHER CONDITIONS.  SEE
SECTION 18 OF THE OFFER TO PURCHASE ("CERTAIN CONDITIONS OF THE OFFER").

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

THE BOARD OF DIRECTORS OF THE COMPANY,  BY UNANIMOUS  VOTE, HAS DETERMINED  THAT
EACH OF THE OFFER AND THE MERGER (AS DEFINED HEREIN) IS FAIR TO, AND IN THE BEST
INTERESTS  OF,  THE  STOCKHOLDERS  OF  THE  COMPANY,  AND  RECOMMENDS  THAT  THE
STOCKHOLDERS OF THE COMPANY ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO
THE OFFER.

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

                                   IMPORTANT

Stockholders who desire to tender all or any portion of their Shares (as defined
herein)  should  either  (i)  complete  and sign the Letter of  Transmittal  (or
facsimile  thereof) that  accompanies  this Offer to Purchase in accordance with
the  instructions  in such Letter of Transmittal,  have their signature  thereon
guaranteed if required by Instruction 1 to such Letter of  Transmittal,  mail or
deliver  it and any  other  required  documents  to The  Bank of New  York  (the
"Depositary")  and  either  deliver  the  certificates  ("Share   Certificates")
representing  the  tendered  Shares to the  Depositary,  or tender  such  Shares
pursuant to the procedures for book-entry  transfer set forth under Section 3 of
the Offer to Purchase  ("Procedure for Tendering  Shares") or (ii) request their
broker,  dealer,  bank, trust company or other nominee to effect the transaction
for them.  Stockholders  whose  Shares are  registered  in the name of a broker,
dealer,  bank, trust company or other nominee must contact such broker,  dealer,
bank, trust company or other nominee to tender such Shares.

Stockholders  who desire to tender their  Shares and whose Share  Certificate(s)
are not immediately available,  or who cannot comply in a timely manner with the
procedures for book-entry transfer, or who cannot deliver all required documents
to the Depositary  prior to the expiration of the Offer,  may tender such Shares
by following the procedures for guaranteed delivery set forth under Section 3 of
the Offer to Purchase ("Procedure for Tendering Shares").

Questions  and  requests for  assistance  may be directed to Georgeson & Company
Inc. (the "Information  Agent"),  or J.P. Morgan Securities Inc. ("JP Morgan" or
the "Dealer Manager"),  at their respective  addresses and telephone numbers set
forth on the back cover of this  Offer to  Purchase.  Additional  copies of this
Offer to Purchase,  the Letter of Transmittal and other related materials may be
obtained  from the  Information  Agent or the Dealer  Manager  or from  brokers,
dealers, banks or trust companies.

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

THIS  TRANSACTION  HAS NOT BEEN APPROVED OR  DISAPPROVED  BY THE  SECURITIES AND
EXCHANGE  COMMISSION NOR HAS THE SECURITIES AND EXCHANGE  COMMISSION PASSED UPON
THE FAIRNESS OR MERITS OF SUCH  TRANSACTION NOR UPON THE ACCURACY OR ADEQUACY OF
THE INFORMATION  CONTAINED IN THIS DOCUMENT.  ANY REPRESENTATION TO THE CONTRARY
IS UNLAWFUL.

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

                      The Dealer Manager for the Offer is:

                               J.P. MORGAN & CO.

              The date of this Offer to Purchase is July 15, 1997.


<PAGE>


                                TABLE OF CONTENTS


                                                                          PAGE
                                                                          -----
INTRODUCTION   .........................................................    1

THE OFFER   ............................................................    3
  1. Terms of the Offer ................................................    3
  2. Acceptance for Payment and Payment for Shares .....................    3
  3. Procedure for Tendering Shares ....................................    4
  4. Extension of the Offer Period; Termination; Amendment .............    6
  5. Withdrawal Rights  ................................................    7
  6. Appraisal Rights   ................................................    8
  7. Certain Federal Income Tax Consequences ...........................    9
  8. Price  Range of the  Shares;  Dividend  Policy of the
     Company ...........................................................    9
  9. Effect of the  Offer on the  Market  for the  Shares;
     Nasdaq   National   Market   Listing;   Exchange  Act
     Registration;  Margin  Regulations ................................   10
 10. Source and Amount of Funds  .......................................   11
 11. Certain Information Concerning the Company    .....................   11
 12. Selected Consolidated Financial Data of the Company ...............   12
 13. Certain Information Concerning WCAS VII, WCAS CP III,
     Parent and the Purchaser ..........................................   14
 14. Background of the Offer and the Merger; Contacts with
     the Company .......................................................   16
 15. The Merger Agreement  .............................................   16
 16. Purpose  and  Structure  of the Offer and the Merger;
     Reasons of Parent and the Purchaser for the Offer and
     the Merger ........................................................   22
 17. Plans for the Company After the Offer and the Merger;
     Certain   Effects   of  the  Offer  and  the   Merger .............   22
 18. Certain Conditions of the Offer   .................................   23
 19. Certain Legal Matters .............................................   25
 20. Fees and Expenses  ................................................   27
 21. Miscellaneous   ...................................................   28

SCHEDULE I DIRECTORS AND EXECUTIVE OFFICERS OF PARENT AND THE PURCHASER;
     GENERAL  PARTNERS OF VII PARTNERS;  AND MANAGING  MEMBERS OF CP III
     ASSOCIATES

 ANNEX A RIGHTS OF DISSENTING STOCKHOLDERS UNDER THE DGCL



<PAGE>


To the Holders of Shares of Common
Stock of Control Data Systems, Inc.:

                                  INTRODUCTION

CDSI  Acquisition  Corp.  (the  "Purchaser"),   a  Delaware  corporation  and  a
wholly-owned  subsidiary  of CDSI Holding  Corporation,  a Delaware  corporation
("Parent"),  hereby offers to purchase all outstanding  shares (the "Shares") of
common stock, $.01 par value ("Common Stock"), of Control Data Systems,  Inc., a
Delaware corporation (the "Company"), at a price of $20.25 per Share, net to the
seller in cash, without interest (the "Offer Price"), upon the terms and subject
to the  conditions set forth in this Offer to Purchase and the related Letter of
Transmittal  (this Offer to  Purchase  and the  related  Letter of  Transmittal,
together with any  amendments  or  supplements  hereto or thereto,  collectively
constitute the "Offer").

The Purchaser and Parent have been organized at the direction of Welsh,  Carson,
Anderson & Stowe VII, L.P., a Delaware  limited  partnership  ("WCAS VII"),  and
WCAS Capital Partners III, L.P., a Delaware limited  partnership  ("WCAS CP III"
and,  together  with WCAS VII,  the  "Investors")  to  effect  the  transactions
described  herein.  WCAS  VII  and  WCAS  CP  III  are  investment  partnerships
affiliated  with Welsh,  Carson,  Anderson & Stowe  ("WCAS"),  a private  equity
investment  firm  specializing  in buyouts  in the  healthcare  and  information
processing  industries.  The Investors  have committed to provide or cause to be
provided up to $300 million of cash financing for the Offer and the Merger.  See
Section 10 of the Offer to Purchase ("Source and Amount of Funds").

THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS,  THERE BEING VALIDLY TENDERED
AND NOT  WITHDRAWN  PRIOR TO THE  EXPIRATION  OF THE OFFER THAT NUMBER OF SHARES
WHICH REPRESENTS AT LEAST FIFTY-ONE PERCENT (51%) OF THE SHARES OUTSTANDING ON A
FULLY DILUTED BASIS (AS DEFINED HEREIN) (THE "MINIMUM  CONDITION").  SEE SECTION
18 OF THE OFFER TO PURCHASE ("CERTAIN CONDITIONS OF THE OFFER").

Tendering   stockholders  will  not  be  obligated  to  pay  brokerage  fees  or
commissions  or,  except  as  set  forth  in  Instruction  6 of  the  Letter  of
Transmittal,  stock  transfer  taxes on the purchase of Shares by the  Purchaser
pursuant to the Offer. Parent or the Purchaser will pay all fees and expenses of
J.P. Morgan Securities Inc. ("JP Morgan"),  as Dealer Manager (in such capacity,
the "Dealer Manager"),  The Bank of New York, as Depositary (the  "Depositary"),
and Georgeson & Company Inc., as Information  Agent (the  "Information  Agent"),
incurred in connection  with the Offer.  See Section 20 of the Offer to Purchase
("Fees and Expenses").

THE BOARD OF DIRECTORS OF THE COMPANY (THE "COMPANY BOARD"),  BY UNANIMOUS VOTE,
HAS DETERMINED THAT EACH OF THE OFFER AND THE MERGER (AS DEFINED HEREIN) IS FAIR
TO, AND IN THE BEST INTERESTS OF, THE STOCKHOLDERS OF THE COMPANY AND RECOMMENDS
THAT  STOCKHOLDERS  ACCEPT THE OFFER AND TENDER  THEIR  SHARES  PURSUANT  TO THE
OFFER.  COWEN & COMPANY HAS DELIVERED TO THE COMPANY BOARD ITS WRITTEN  OPINION,
DATED JULY 8, 1997,  THAT, AS OF THAT DATE, THE FINANCIAL TERMS OF THE OFFER AND
THE MERGER ARE FAIR TO THE  HOLDERS OF THE COMMON  STOCK  (OTHER THAN PARENT AND
ITS  AFFILIATES)  FROM A FINANCIAL POINT OF VIEW. SEE SECTION 14 OF THE OFFER TO
PURCHASE ("BACKGROUND OF THE OFFER AND THE MERGER; CONTACTS WITH THE COMPANY").

The  Company  has  filed  with  the  Securities  and  Exchange  Commission  (the
"Commission")  a  Solicitation/Recommendation  Statement on Schedule  14D-9 (the
"Schedule 14D-9"), which is being mailed to stockholders herewith.

The Company has advised the  Purchaser  that as of the close of business on July
7, 1997 (i) 12,622,359 Shares were issued and outstanding; (ii) 2,348,123 Shares
were held in the treasury of the Company; (iii) 1,688,490 Shares were authorized
and reserved for future issuance  pursuant to outstanding  stock options granted
under the  Company's  1992 Equity  Incentive  Plan (the  "Company  Stock  Option
Plan");  and (iv) up to  65,000  Shares  (depending  on the  extent  of  payroll
deductions)  were  authorized and reserved for issuance under the Company's 1992
Employee Stock Purchase Plan (the "Company Stock Purchase  Plan").  (The Company
Stock  Option  Plan  and  the  Company  Stock  Purchase  Plan  are   hereinafter
collectively  referred to as the  "Company  Stock  Plans".)  For purposes of the
Offer,  in  determining  the number of Shares  outstanding  on a "Fully  Diluted
Basis",  there shall be included all Shares actually outstanding plus all Shares
issuable upon exercise or  conversion or exchange of then  outstanding  options,
warrants and other rights to purchase,  or other securities  convertible into or
exchangeable for, Shares, including options under the Company Stock Plans. As of
July 15, 1997, neither the


<PAGE>


Purchaser  nor Parent owned any Shares.  Accordingly,  Parent and the  Purchaser
believe  that the Minimum  Condition  will be  satisfied  if at least  7,331,683
Shares are validly  tendered in the Offer and not  withdrawn.  See Section 15 of
the Offer to Purchase ("The Merger Agreement").

The Offer is being made pursuant to an Agreement and Plan of Merger, dated as of
July 8, 1997,  by and among  Parent,  the Purchaser and the Company (the "Merger
Agreement"). The Merger Agreement provides that the merger of the Purchaser with
and into the Company (the "Merger") will take place as soon as practicable after
the satisfaction or waiver, if permissible,  of all conditions to the Merger. In
the event that Parent and the Purchaser  acquire at least 90% of the Shares then
outstanding, pursuant to the Offer or otherwise, then, at the election of Parent
and the Purchaser, the Merger will take place without a meeting or a vote of the
Company's stockholders pursuant to Section 253 of the General Corporation Law of
the State of Delaware (the "DGCL").  However,  if, following the consummation of
the Offer,  Parent and the  Purchaser  do not own 90% or more of the Shares then
outstanding,  the Company  will hold a special  meeting of the  stockholders  to
consider and vote upon approval of the Merger Agreement.

Under the  Company's  Restated  Certificate  of  Incorporation,  as amended (the
"Company Certificate") and Section 251 of the DGCL, the Merger Agreement and the
Merger must be approved by the holders of a majority of the outstanding  Shares.
If the Minimum  Condition has been satisfied in connection  with the Offer,  the
Purchaser  will have  sufficient  voting power to approve the Merger without the
vote of any other  stockholder  of the Company.  Parent and the  Purchaser  have
agreed to vote all Shares beneficially owned by them in favor of the adoption of
the Merger Agreement and the Merger.  Parent and the Purchaser have been advised
by the Company that all directors and executive  officers of the Company  intend
either to tender their Shares in the Offer or to vote in favor of the Merger.

The  purpose of the Offer and the  Merger is for  Parent to  acquire  the entire
equity  interest in the  Company.  Following  consummation  of the  Merger,  the
Company will continue as the surviving corporation (the "Surviving Corporation")
and will become a  wholly-owned  subsidiary of Parent.  At the effective time of
the Merger (the "Effective Time"), each Share issued and outstanding immediately
prior to the Effective Time (other than Shares owned by Parent, the Purchaser or
any  subsidiary of Parent or the  Purchaser,  Shares held in the treasury of the
Company or any subsidiary of the Company or Shares owned or held by stockholders
who shall have properly  demanded and perfected  appraisal  rights under Section
262 of the DGCL) will be canceled and converted  automatically into the right to
receive in cash,  without interest,  an amount equal to the price paid per Share
in the Offer (the "Merger  Consideration").  The Merger  Agreement is more fully
described under Section 15 of the Offer to Purchase ("The Merger Agreement").

Pursuant to the Merger  Agreement,  at the Effective Time, each holder of a then
outstanding  option  under the  Company  Stock  Option Plan shall be entitled to
receive in cancellation of such option an amount in cash equal to the excess, if
any,  of the  Merger  Consideration  over the per share  exercise  price of such
option,  subject to applicable withholding taxes, if any. Pursuant to the Merger
Agreement,  immediately  prior to the Effective  Time,  all options  outstanding
under the Company Stock Purchase Plan shall become  exercisable to the extent of
payroll  deductions  accumulated  by  participants  as of such  date,  and  each
participant shall be deemed to have purchased the number of whole Shares subject
to the options held by such participant at a per Share price determined pursuant
to the  provisions of the Company  Stock  Purchase Plan and shall receive a cash
payment equal to the balance,  if any, of such  accumulated  payroll  deductions
remaining  after the deemed  purchase of such Shares.  As of the Effective Time,
each  participant  shall receive,  for each Share such  participant is deemed to
have  purchased,  the Merger  Consideration.  The  Company  Stock  Plans and all
options issued and outstanding  thereunder  shall terminate  effective as of the
Effective Time.

No  appraisal  rights are  available  in  connection  with the  Offer.  However,
stockholders will have appraisal rights in connection with the Merger regardless
of whether  the Merger is  consummated  with or without a vote of the  Company's
stockholders. See Section 6 of the Offer to Purchase ("Appraisal Rights").

THE OFFER TO PURCHASE AND THE RELATED  LETTER OF TRANSMITTAL  CONTAIN  IMPORTANT
INFORMATION  ABOUT  THE  OFFER AND THE  MERGER.  STOCKHOLDERS  ARE URGED TO READ
CAREFULLY THE OFFER TO PURCHASE AND THE RELATED  LETTER OF  TRANSMITTAL IN THEIR
ENTIRETY BEFORE MAKING ANY DECISION WITH RESPECT TO THE OFFER.

                                       2

<PAGE>


                                    THE OFFER

1. TERMS OF THE OFFER

Upon the terms and subject to the  conditions  of the Offer  (including,  if the
Offer is extended or amended,  the terms and conditions of any such extension or
amendment), the Purchaser will accept for payment and pay for all Shares validly
tendered on or prior to the  Expiration  Date and not  theretofore  withdrawn in
accordance  with the  provisions  set  forth  under  Section  5 of the  Offer to
Purchase ("Withdrawal Rights"). The term "Expiration Date" means 12:00 midnight,
New York City time, on August 11, 1997, unless and until the Purchaser,  subject
to the terms and  conditions  of the Merger  Agreement,  shall have extended the
period  of time  during  which  the  Offer is  open,  in  which  event  the term
"Expiration  Date" shall mean the latest time and date at which the Offer, as so
extended by the Purchaser, shall expire.

The Offer is  conditioned  upon,  among other things,  the  satisfaction  of the
Minimum  Condition and the  expiration  or  termination  of all waiting  periods
imposed by the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended,
and the regulations  thereunder (the "HSR Act").  See Section 18 of the Offer to
Purchase  ("Certain  Conditions  of the  Offer"),  which sets  forth  additional
conditions  to the Offer.  If such  conditions  are not  satisfied  prior to the
Expiration  Date,  subject to the terms of the Merger  Agreement,  the Purchaser
reserves  the  right  (but  shall  not be  obligated)  to (i) amend the Offer or
decline to purchase any of the Shares  tendered and  terminate  the Offer and/or
the Merger  Agreement,  (ii) waive any of the  conditions  to the Offer,  to the
extent  permitted by applicable law and,  subject to complying  with  applicable
rules and regulations of the Commission, purchase and pay for all Shares validly
tendered or (iii) extend the Offer and,  subject to the right of stockholders to
withdraw  Shares  until the  Expiration  Date,  retain the Shares that have been
tendered  until the  expiration  of the period or periods for which the Offer is
extended.

2. ACCEPTANCE FOR PAYMENT AND PAYMENT FOR SHARES

Upon the terms and subject to the  conditions  of the Offer  (including,  if the
Offer is extended or amended,  the terms and conditions of any such extension or
amendment),  the Purchaser will purchase, by accepting for payment, and will pay
for,  all Shares  validly  tendered on or prior to the  Expiration  Date and not
properly withdrawn in accordance with the terms set forth under Section 5 of the
Offer to Purchase ("Withdrawal Rights") promptly after the later to occur of (i)
the Expiration Date or (ii) the  satisfaction  or waiver (where  permissible) of
the terms and  conditions  set forth  under  Section 18 of the Offer to Purchase
("Certain   Conditions  of  the  Offer").   Any  determination   concerning  the
satisfaction  or waiver of any such terms and conditions will be within the sole
discretion of the Purchaser,  which  determination  will be final and binding on
all holders of Shares.  Subject to applicable  rules of the  Commission  and the
terms and conditions of the Merger Agreement,  the Purchaser  expressly reserves
the right, in its sole discretion, to delay acceptance for payment of or payment
for Shares in order to comply in whole or in part with any  applicable  law. See
Section 1 of the Offer to Purchase ("Terms of the Offer").

In all cases, payment for Shares accepted for payment pursuant to the Offer will
be made only after timely  receipt by the  Depositary of (i) Share  Certificates
(or timely  Book-Entry  Confirmation  of the book-entry  transfer of such Shares
into the Depositary's  account at a Book-Entry Transfer Facility pursuant to the
procedures  set forth under Section 3 of the Offer to Purchase  ("Procedure  for
Tendering  Shares")),  (ii) the Letter of  Transmittal  (or facsimile  thereof),
properly  completed  and duly  executed,  together  with any required  signature
guarantees,  or an Agent's  Message  (as  defined  below) in  connection  with a
book-entry  transfer  and (iii) any other  documents  required  by the Letter of
Transmittal.

For purposes of the Offer,  the  Purchaser  will be deemed to have  accepted for
payment, and thereby purchased, Shares validly tendered to the Purchaser and not
properly withdrawn as, if and when the Purchaser gives oral or written notice to
the Depositary of the Purchaser's acceptance for payment of such Shares pursuant
to the Offer. In all cases,  upon the terms and subject to the conditions of the
Offer,  payment for Shares  accepted  for payment  pursuant to the Offer will be
made by  deposit  by the  Purchaser  of the  purchase  price  therefor  with the
Depositary,  which will act as agent for tendering  stockholders for the purpose
of receiving payment from the Purchaser and transmitting payment to such validly
tendering  stockholders.  Upon the deposit of funds with the  Depositary for the
purpose of making payments to tendering stockholders, the Purchaser's obligation
to make  such  payments  shall be  satisfied  and  tendering  stockholders  must
thereafter  look solely to the Depositary for payment of amounts owed to them by
reason of the  acceptance  for  payment of Shares  pursuant  to the  Offer.  The
Purchaser  will pay any stock  transfer  taxes with  respect to the transfer and
sale to it or its order pursuant to the Offer,  except as otherwise  provided in
Instruction 6 of the Letter of Transmittal,  as well as any charges and expenses
of the Depositary and the Information Agent.

                                       3


<PAGE>







If any tendered  Shares are not  purchased  pursuant to the Offer  because of an
invalid tender or for any other reason,  Share  Certificates for any such Shares
will be returned, without expense, to the tendering stockholder (or, in the case
of Shares delivered by book-entry  transfer of such Shares into the Depositary's
account at a Book-Entry  Transfer  Facility pursuant to the procedures set forth
under Section 3 of the Offer to Purchase  ("Procedure  for  Tendering  Shares"),
such Shares will be credited to an account maintained at the Book-Entry Transfer
Facility),  as promptly as  practicable  after the  expiration,  termination  or
withdrawal of the Offer.

The Purchaser reserves the right to transfer or assign, in whole or from time to
time in part, to one or more of the Purchaser's subsidiaries or affiliates,  the
right to  purchase  all or any  portion of the Shares  tendered  pursuant to the
Offer, but any such transfer or assignment will not relieve the Purchaser of its
obligations under the Offer or prejudice the rights of tendering stockholders to
receive payment for Shares validly tendered and accepted for purchase.

3. PROCEDURE FOR TENDERING SHARES

Valid Tender.

For a stockholder to validly tender Shares  pursuant to the Offer,  either (i) a
properly  completed  and duly  executed  Letter  of  Transmittal  (or  facsimile
thereof), together with any required signature guarantees, or an Agent's Message
in  connection  with a  book-entry  delivery of Shares,  and any other  required
documents,  must be received by the Depositary at one of its addresses set forth
on the back cover of this Offer to Purchase, and Share Certificates for tendered
Shares must be received by the Depositary at one of such addresses or such Share
Certificates  must  be  delivered  pursuant  to the  procedures  for  book-entry
transfer  set forth below (and a  Book-Entry  Confirmation  (as  defined  below)
received by the Depositary),  in each case on or prior to the Expiration Date or
(ii)  the  tendering  stockholder  must  comply  with  the  guaranteed  delivery
procedures set forth below.

Book-Entry Delivery.

The  Depositary  will  establish  an account  with  respect to the Shares at The
Depository Trust Company ("DTC") and the  Philadelphia  Depositary Trust Company
("PDTC")  (DTC  and  PDTC,   each,  a  "Book-Entry   Transfer   Facility"   and,
collectively,  the "Book-Entry  Transfer  Facilities") for purposes of the Offer
within two business days after the date of this Offer to Purchase. Any financial
institution  that is a participant  in a Book-Entry  Transfer  Facility may make
book-entry  delivery  of Shares by causing  the  book-entry  transfer  system to
transfer  such Shares into the  Depositary's  account at a  Book-Entry  Transfer
Facility in accordance with the Book-Entry  Transfer  Facility's  procedures for
such transfer.  Although  delivery of Shares may be effected through  book-entry
transfer into the Depositary's  account at a Book-Entry  Transfer Facility,  the
Letter of Transmittal,  properly completed and duly executed,  with any required
signature  guarantees,  or an Agent's  Message in  connection  with a book-entry
transfer,  and any other required  documents,  must, in any case, be transmitted
to, and received by, the  Depositary  at one of its  addresses  set forth on the
back cover of this Offer to Purchase on or prior to the Expiration  Date, or the
tendering  stockholder  must  comply  with the  guaranteed  delivery  procedures
described below.  The  confirmation of a book-entry  transfer of Shares into the
Depositary's  account at a Book-Entry  Transfer  Facility as described  above is
referred to herein as a  "Book-Entry  Confirmation".  DELIVERY OF DOCUMENTS TO A
BOOK-ENTRY  TRANSFER FACILITY IN ACCORDANCE WITH ITS BOOK-ENTRY  PROCEDURES DOES
NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.

The term "Agent's Message" means a message, transmitted by a Book-Entry Transfer
Facility  to,  and  received  by,  the  Depositary  and  forming  a part  of the
Book-Entry Confirmation,  which states that the Book-Entry Transfer Facility has
received  an  express  acknowledgment  from the  participant  in the  Book-Entry
Transfer  Facility  tendering the Shares that such  participant has received the
Letter of  Transmittal  and  agrees  to be bound by the  terms of the  Letter of
Transmittal  and that the  Purchaser  may enforce  such  agreement  against such
participant.

THE METHOD OF  DELIVERY  OF  SHARES,  THE  LETTER OF  TRANSMITTAL  AND ALL OTHER
REQUIRED   DOCUMENTS  IS  AT  THE  ELECTION  AND  SOLE  RISK  OF  THE  TENDERING
STOCKHOLDER, AND DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED AT THE
DEPOSITARY.  IF DELIVERY IS BY MAIL, THEN INSURED OR REGISTERED MAIL WITH RETURN
RECEIPT  REQUESTED  IS  RECOMMENDED.  IN ALL CASES,  SUFFICIENT  TIME  SHOULD BE
ALLOWED TO ENSURE TIMELY DELIVERY.

                                       4


<PAGE>






Signature Guarantees.

No  signature  guarantee  is  required on the Letter of  Transmittal  if (i) the
Letter of Transmittal is signed by the registered holder(s) of the Shares (which
term,  for purposes of this Section,  includes any  participant  in a Book-Entry
Transfer  Facility system whose name appears on a security  position  listing as
the owner of the Shares)  tendered  therewith and such registered  holder(s) has
not completed either the box entitled "Special Delivery Instructions" or the box
entitled  "Special  Payment  Instructions" on such Letter of Transmittal or (ii)
such Shares are  tendered  for the  account of a bank,  broker,  dealer,  credit
union,  savings association or other entity that is a member in good standing of
the Securities Transfer Agents Medallion Program (an "Eligible Institution"). In
all other cases,  all signatures on the Letter of Transmittal must be guaranteed
by  an  Eligible  Institution.  See  Instructions  1  and  5 to  the  Letter  of
Transmittal.  If the Share  Certificates  are registered in the name of a person
other than the signer of the Letter of Transmittal,  or if payment is to be made
or Share  Certificates  not validly  tendered or not accepted for payment or not
purchased  are to be issued or  returned to a person  other than the  registered
holder  of the Share  Certificates,  the  tendered  Share  Certificates  must be
endorsed in blank or accompanied by appropriate stock powers,  signed exactly as
the name or names of the registered  holder(s) appear on the Share  Certificates
with the signatures on such Share  Certificates or stock powers guaranteed by an
Eligible Institution. See Instructions 1 and 5 to the Letter of Transmittal.

Guaranteed Delivery.

If a  stockholder  desires  to  tender  Shares  pursuant  to the  Offer and such
stockholder's Share Certificates are not immediately available or the procedures
for book-entry  transfer  cannot be completed on a timely basis or time will not
permit  all  required  documents  to  reach  the  Depositary  on or prior to the
Expiration Date, such Shares may nevertheless be tendered  provided that all the
following guaranteed delivery procedures are duly complied with:

      (1) such tender is made by or through an Eligible Institution;

      (2)  the  Depositary  receives  (by  hand,  mail,  telegram  or  facsimile
   transmission)  on or prior to the Expiration  Date, a properly  completed and
   duly  executed  Notice  of  Guaranteed  Delivery,  substantially  in the form
   provided by the Purchaser; and

      (3) the Share  Certificates  representing all tendered  Shares,  in proper
   form for transfer (or a Book-Entry Confirmation with respect to such Shares),
   together with a properly  completed and duly executed  Letter of  Transmittal
   (or facsimile  thereof),  with any required  signature  guarantees (or in the
   case of  Book-Entry  Transfer,  an Agent's  Message) and any other  documents
   required by the Letter of Transmittal,  are received by the Depositary within
   three  trading days after the date of execution of such Notice of  Guaranteed
   Delivery.  A "trading  day" is any day on which the National  Association  of
   Securities Dealers Automated  Quotation National Market (the "Nasdaq National
   Market") is open for business.

The Notice of  Guaranteed  Delivery may be delivered by hand or  transmitted  by
facsimile transmission or by mail to the Depositary and must include a guarantee
by an Eligible  Institution  in the form set forth in such Notice of  Guaranteed
Delivery.

Notwithstanding  any other  provision  hereof,  payment for Shares  accepted for
payment  pursuant  to the  Offer  will in all cases be made  only  after  timely
receipt by the Depositary of (i) Share  Certificates for (or a timely Book-Entry
Confirmation  with respect to) such  Shares,  (ii) a Letter of  Transmittal  (or
facsimile thereof) for such Shares,  properly completed and duly executed,  with
any required signature  guarantees,  or, in the case of Book-Entry Transfer,  an
Agent's  Message,  and (iii)  any  other  documents  required  by the  Letter of
Transmittal.  Accordingly, tendering stockholders may be paid at different times
depending upon when Share Certificates,  Book-Entry Confirmations and such other
documents are actually received by the Depositary.  Under no circumstances  will
interest be paid by the  Purchaser  on the  purchase  price of the Shares to any
tendering stockholder,  regardless of any extension of the Offer or any delay in
making such payment.

The Purchaser's  acceptance for payment of Shares validly  tendered  pursuant to
any of the  procedures  described  above  will  constitute  a binding  agreement
between the tendering  stockholder  and the Purchaser upon the terms and subject
to the conditions of the Offer.

                                       5


<PAGE>






Determination of Validity; Rejection of Shares; Waiver of Defects; No Obligation
to Give Notice of Defects.

All questions as to the validity,  form, eligibility (including time of receipt)
and acceptance of any tender of Shares will be determined by the  Purchaser,  in
its  sole  discretion,  which  determination  will be  final  and  binding.  The
Purchaser reserves the absolute right to reject any or all tenders determined by
it not to be in proper  form or the  acceptance  for  payment of or payment  for
which may, in the opinion of the Purchaser's counsel, be unlawful. The Purchaser
also reserves the absolute  right to waive any of the conditions of the Offer or
any defect or irregularity in any tender with respect to any particular  Shares,
or with respect to those Shares held by any particular  stockholder,  whether or
not  similar  conditions,  defects or  irregularities  are waived in the case of
other Shares. No tender of Shares will be deemed to have been validly made until
all defects or irregularities  relating thereto have been cured or waived.  None
of Parent,  the Purchaser,  any of their affiliates or assigns,  the Depositary,
the Information  Agent, the Dealer Manager or any other person will be under any
duty to give  notification of any defects or  irregularities in tenders or incur
any  liability  for  failure  to give any  such  notification.  The  Purchaser's
interpretation of the terms and conditions of the Offer (including the Letter of
Transmittal and the instructions thereto) will be final and binding.

Proxy.

By  executing  a Letter of  Transmittal,  a  tendering  stockholder  irrevocably
appoints   Patrick  J.  Welsh  and  Thomas  E.  McInerney,   and  each  of  them
individually,  the attorneys-in-fact  and proxies of the stockholder,  each with
full power of  substitution,  to vote in such a manner as each such attorney and
proxy  or his  substitute  shall,  in his  sole  discretion,  deem  proper,  and
otherwise act (including pursuant to written consent) with respect to all of the
Shares tendered by the  stockholder  which have been accepted for payment by the
Purchaser  prior to the time of such vote or action (and any  Distributions  (as
defined in the Offer to Purchase))  which the stockholder is entitled to vote at
any  meeting of  stockholders  (whether  annual or special and whether or not an
adjourned  or postponed  meeting) of the Company,  or by consent in lieu of such
meeting,  or otherwise.  The power of attorney and proxy will be coupled with an
interest in the  tendered  Shares,  will be  irrevocable  and will be granted in
consideration  of, and effective upon, the acceptance for payment of such Shares
by the Purchaser in accordance with the terms of the Offer.  Such acceptance for
payment shall revoke,  without  further  action,  any other power of attorney or
proxy granted by the  stockholder  at any time with respect to the Shares and no
subsequent  powers of  attorney  or proxies  will be given (and if given will be
deemed  not to be  effective)  with  respect  thereto  by the  stockholder.  The
Purchaser  shall  reserve the right to require  that,  in order for Shares to be
deemed validly tendered, immediately upon the Purchaser's acceptance for payment
of such Shares,  the  Purchaser or its designees is able to exercise full voting
rights with respect to such Shares and other securities, including voting at any
meeting of stockholders.

Backup Withholding.

In order to avoid backup  withholding  of Federal income tax on payments of cash
pursuant to the Offer, a stockholder  tendering Shares in the Offer must provide
the Depositary with such stockholder's  correct taxpayer  identification  number
("TIN") on a  Substitute  Form W-9 and certify  under  penalties of perjury that
such  TIN is  correct  and  that  such  stockholder  is not  subject  to  backup
withholding. Certain stockholders (including, among others, all corporations and
certain foreign individuals and entities) are not subject to backup withholding.
If a  stockholder  does not  provide  its  correct  TIN or fails to provide  the
certification  described  above,  under Federal  income tax laws, the Depositary
will be  required  to  withhold  31% of the amount of any  payment  made to such
stockholder pursuant to the Offer. All stockholders tendering Shares pursuant to
the Offer should  complete and sign the Substitute  Form W-9 included as part of
the Letter of Transmittal to provide the information and certification necessary
to avoid  backup  withholding  (unless  an  applicable  exemption  exists and is
provided  in a  manner  satisfactory  to  the  Purchaser  and  the  Depositary).
Noncorporate   foreign  stockholders  should  complete  and  sign  a  Form  W-8,
Certificate  of  Foreign  Status,  a copy of  which  may be  obtained  from  the
Depositary,  in order to avoid  backup  withholding.  See  Instruction  9 to the
Letter of Transmittal.

4. EXTENSION OF OFFER PERIOD; TERMINATION; AMENDMENT

Subject to the applicable rules and regulations of the Commission, the Purchaser
expressly reserves the right,  subject to the terms and conditions of the Merger
Agreement,  at any time and from time to time,  upon the failure to be satisfied
of any of the conditions to the Offer set forth under Section 18 of the Offer to
Purchase  ("Certain  Conditions  of the Offer"),  to (i)  terminate or amend the
Offer, (ii) extend the Offer and postpone  acceptance for payment of any Shares,
or  (iii)  waive  any  condition  by  giving  oral  or  written  notice  of such
termination,  amendment,  extension or waiver to the  Depositary and by making a
public announcement  thereof.  During any such extension,  all Shares previously
tendered and not properly

                                       6


<PAGE>





withdrawn will remain  subject to the Offer,  including the right of a tendering
stockholder to withdraw such stockholder's Shares. See Section 5 of the Offer to
Purchase ("Withdrawal Rights").  UNDER NO CIRCUMSTANCES WILL INTEREST BE PAID ON
THE PURCHASE PRICE FOR TENDERED SHARES,  WHETHER OR NOT THE PURCHASER  EXERCISES
ITS RIGHT TO EXTEND THE OFFER.

Any termination,  amendment, extension or waiver will be followed as promptly as
practicable by public announcement.  In the case of an extension,  Rule 14e-1(d)
under the Exchange Act requires that the announcement be made no later than 9:00
a.m.,  Eastern  Time, on the next  business day after the  previously  scheduled
Expiration Date in accordance with the public announcement  requirements of Rule
14d-4(c)  under the Exchange Act.  Subject to applicable  law  (including  Rules
14d-4(c) and 14d-6(d)  under the Exchange  Act,  which require that any material
change in the information published, sent or given to stockholders in connection
with the Offer be promptly  disseminated to stockholders in a manner  reasonably
designed to inform stockholders of such change), and without limiting the manner
in which  the  Purchaser  may  choose  to make  any  public  announcements,  the
Purchaser  will not have any  obligations  to publish,  advertise  or  otherwise
communicate any such public  announcement  other than by issuing a press release
to the Dow Jones News Service.  As used herein,  a "business  day" means any day
other than a Saturday, Sunday or federal holiday and consists of the time period
from 12:01 a.m. through 12:00 midnight, Eastern Time.

If the Purchaser extends the Offer or if the Purchaser  (whether before or after
its  acceptance  for  payment of the  Shares) is delayed in its  acceptance  for
payment of or payment for any Shares  validly  tendered and not withdrawn in the
Offer,  or the  Purchaser is unable to accept for payment or pay for such Shares
pursuant to the Offer for any reason, then, without prejudice to the Purchaser's
rights under the Offer,  the Depositary may retain  tendered Shares on behalf of
the  Purchaser,  and such  Shares  may not be  withdrawn  except  to the  extent
tendering stockholders are entitled to withdrawal rights as described in Section
5 of the Offer to Purchase ("Withdrawal  Rights").  The ability of the Purchaser
to delay the payment for the Shares that the Purchaser has accepted for payment,
however, is limited by Rule 14e-1(c) under the Exchange Act, which requires that
a bidder pay the consideration  offered or return the securities deposited by or
on behalf of holders of securities  promptly after the termination or withdrawal
of such bidder's offer.

If the  Purchaser or Parent make a material  change in the terms of the Offer or
the information concerning the Offer or waive a material condition of the Offer,
the  Purchaser  will,  or  Parent  will  cause  the  Purchaser  to,  disseminate
additional tender offer materials and extend the Offer to the extent required by
Rules  14d-4(c),  14d-6(d) and 14e-1 under the Exchange Act. The minimum  period
during which an offer must remain open following  material  changes in the terms
of the offer or information  concerning the offer,  other than a change in price
or a change in the percentage of securities  sought, or a change in the dealer's
advisory  fee,  will  depend  upon the facts and  circumstances  then  existing,
including the relative  materiality of the changed terms or information.  In the
Commission's  view,  an offer should  remain open for a minimum of five business
days  from the date a  material  change  is  first  published,  sent or given to
securityholders,  and, if material  changes are made with respect to information
that  approaches the  significance  of price and share levels,  a minimum of ten
business days may be required to allow for adequate  dissemination  and investor
response.  With respect to a change in price or, subject to certain limitations,
a change in the  percentage  of  securities  sought  or a change  in a  dealer's
solicitation  fee, a minimum  period of ten business  days from the date of such
change is generally  required under the applicable  rules and regulations of the
Commission  to allow for adequate  dissemination  to  stockholders  and investor
response.

5. WITHDRAWAL RIGHTS

Except as otherwise provided in this Section 5 of the Offer to Purchase, tenders
of Shares made pursuant to the Offer are irrevocable.  Shares tendered  pursuant
to the Offer may be withdrawn  pursuant to the procedures set forth below at any
time prior to the Expiration Date, and, unless theretofore  accepted for payment
by the Purchaser  pursuant to the Offer, may also be withdrawn at any time after
September  15,  1997.  If the  Purchaser  extends  the Offer,  is delayed in its
acceptance  for  payment  of  Shares or is unable  to  purchase  Shares  validly
tendered  pursuant to the Offer for any reason,  then  without  prejudice to the
Purchaser's  rights under the Offer, the Depositary may nevertheless,  on behalf
of the Purchaser,  retain  tendered  Shares and such Shares may not be withdrawn
except to the extent that  tendering  stockholders  are  entitled to  withdrawal
rights as described in this Section.  Any such delay will be  accompanied  by an
extension of the Offer to the extent required by law.

For  a  withdrawal  to  be  effective,  a  written,   telegraphic  or  facsimile
transmission  notice of withdrawal  must be timely received by the Depositary at
one of its  addresses  set forth on the back cover of this Offer to Purchase and
must specify the name of the person having  tendered the Shares to be withdrawn,
the number of Shares to be withdrawn if Share Certificates

                                       7


<PAGE>






have been  tendered  and the name of the  registered  holder of the Shares to be
withdrawn as set forth on such Share  Certificates if different from the name of
the person who tendered the Shares. If Share Certificates have been delivered or
otherwise  identified to the Depositary,  then, prior to the physical release of
such Share  Certificates,  the serial  numbers shown on such Share  Certificates
must be submitted to the Depositary  and,  unless such Shares have been tendered
by an Eligible  Institution,  the signatures on the notice of withdrawal must be
guaranteed by an Eligible Institution. If Shares have been delivered pursuant to
the procedures for book-entry transfer as set forth under Section 3 of the Offer
to Purchase  ("Procedure for Tendering  Shares"),  any notice of withdrawal must
specify  the  name  and  number  of the  account  at the  appropriate  financial
institution that is a member of the system of a Book-Entry  Transfer Facility to
be credited with the withdrawn  Shares and otherwise comply with such Book-Entry
Transfer  Facility's  procedures for such withdrawal,  in which case a notice of
withdrawal  will be effective if  delivered to the  Depositary  by any method of
delivery  described  in the first  sentence of this  paragraph.  Withdrawals  of
tenders of Shares may not be rescinded,  and any Shares properly  withdrawn will
thereafter be deemed not validly  tendered for purposes of the Offer.  Withdrawn
Shares may be retendered  by again  following  one of the  procedures  described
above  under  Section  3 of the  Offer to  Purchase  ("Procedure  for  Tendering
Shares") at any time on or prior to the Expiration Date.

All questions as to the form and validity (including time of receipt) of notices
of withdrawal will be determined by the Purchaser, in its sole discretion, which
determination shall be final and binding. None of Parent, the Purchaser,  any of
their affiliates or assigns,  the Depositary,  the Information Agent, the Dealer
Manager or any other person will be under any duty to give  notification  of any
defects or irregularities in any notice of withdrawal or incur any liability for
failure to give any such notification.

6. APPRAISAL RIGHTS

No appraisal rights are available in connection with the Offer. If the Merger is
consummated,  however,  stockholders  of the Company who have not tendered their
Shares will have certain  rights under the DGCL to dissent and demand  appraisal
of,  and to  receive  payment  in cash  of the  fair  value  of,  their  Shares.
Stockholders  who perfect such rights by complying with the procedures set forth
in  Section  262 of the DGCL  ("Section  262") will have the fair value of their
Shares  (exclusive  of any element of value arising from the  accomplishment  or
expectation of the Merger) determined by the Delaware Court of Chancery and will
be  entitled  to  receive  a cash  payment  equal to such  fair  value  from the
Surviving  Corporation.  In  addition,  such  dissenting  stockholders  would be
entitled  to  receive  payment  of a fair  rate of  interest  from  the  date of
consummation  of the  Merger on the  amount  determined  to be the fair value of
their Shares. In determining the fair value of the Shares, the court is required
to take into account all relevant factors. Accordingly, such determination could
be based upon considerations  other than, or in addition to, the market value of
the Shares, including, among other things, asset values and earning capacity. In
Weinberger v. UOP, Inc., the Delaware  Supreme Court stated that "proof of value
by any  techniques or methods which are generally  considered  acceptable in the
financial  community and otherwise  admissible in court" should be considered in
an appraisal proceeding. The Weinberger court also noted that under Section 262,
fair value is to be  determined  "exclusive of any element of value arising from
the accomplishment or expectation of the merger".  In Cede & Co. v. Technicolor,
Inc.,  however,  the Delaware  Supreme  Court  stated that,  in the context of a
two-step  cash  merger,  "to the extent  that value has been added  following  a
change in majority  control before cash-out,  it is still value  attributable to
the going concern", to be included in the appraisal process. As a consequence of
the foregoing,  the fair value  determined in any appraisal  proceeding could be
the same as or more or less than the Merger Consideration.  See Annex A attached
hereto for a detailed description of appraisal rights under the DGCL, as well as
the text of Section 262.

Parent does not intend to object,  assuming the proper  procedures are followed,
to the  exercise  of  appraisal  rights by any  stockholder  and the  demand for
appraisal  of, and  payment in cash for the fair  value of, the  Shares.  Parent
intends,  however,  to cause the Surviving  Corporation to argue in an appraisal
proceeding that, for purposes of such  proceeding,  the fair value of each Share
is less than the Merger  Consideration.  In this regard,  stockholders should be
aware that  opinions  of  investment  banking  firms as to the  fairness  from a
financial point of view (including  Cowen & Company's  opinion  described in the
Company's Schedule 14D-9 filed in connection with the Offer) are not necessarily
opinions as to "fair value" under Section 262.

THE FOREGOING SUMMARY OF THE RIGHTS OF DISSENTING  STOCKHOLDERS DOES NOT PURPORT
TO BE A COMPLETE  STATEMENT  OF THE  PROCEDURES  TO BE FOLLOWED BY  STOCKHOLDERS
DESIRING TO EXERCISE  ANY  AVAILABLE  APPRAISAL  RIGHTS AND IS  QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO THE

                                       8


<PAGE>





FULL  TEXT  OF  SECTION  262  INCLUDED HEREWITH IN ANNEX A. THE PRESERVATION AND
EXERCISE  OF  APPRAISAL  RIGHTS  ARE  CONDITIONED  ON  STRICT  ADHERENCE  TO THE

APPLICABLE PROVISIONS OF THE DGCL.

7. CERTAIN FEDERAL INCOME TAX CONSEQUENCES

The summary of Federal  income tax  consequences  set forth below is for general
information  only and is based on the  Purchaser's  understanding  of the law as
currently in effect.  The tax  consequences to each  stockholder  will depend in
part upon such stockholder's particular situation.  Special tax consequences not
described herein may be applicable to particular  classes of taxpayers,  such as
financial  institutions,   broker-dealers,  persons  who  are  not  citizens  or
residents  of the United  States and  stockholders  who  acquired  their  Shares
through the exercise of an employee  stock option or otherwise as  compensation.
ALL STOCKHOLDERS SHOULD CONSULT WITH THEIR OWN TAX ADVISORS AS TO THE PARTICULAR
TAX   CONSEQUENCES  OF  THE  OFFER  AND  THE  MERGER  TO  THEM,   INCLUDING  THE
APPLICABILITY AND EFFECT OF THE ALTERNATIVE  MINIMUM TAX AND ANY STATE, LOCAL OR
FOREIGN INCOME AND OTHER TAX LAWS AND OF CHANGES IN SUCH TAX LAWS.

The  receipt  of cash  for  Shares  pursuant  to the  Offer  will  be a  taxable
transaction for Federal income tax purposes under the the Internal  Revenue Code
of 1986, as amended (the "Code"),  and may also be a taxable  transaction  under
applicable  state,  local or foreign income and other tax laws.  Generally,  for
Federal income tax purposes, a tendering stockholder will recognize gain or loss
in an  amount  equal  to  the  difference  between  the  cash  received  by  the
stockholder  pursuant to the Offer and the  stockholder's  adjusted tax basis in
the Shares tendered by the stockholder and purchased  pursuant to the Offer. For
Federal income tax purposes,  such gain or loss will be capital gain or loss and
will be long-term  capital gain or loss if the beneficial  owner held the Shares
for more than one year as of the date of sale (in the case of the  Offer) or the
Effective  Time  (in  the  case  of  the  Merger).  Long-term  capital  gain  of
individuals  currently is taxed at a maximum rate of 28%.  Legislation  has been
approved  by the  House  Ways and  Means  Committee  and by the  Senate  Finance
Committee which, if enacted,  generally would tax the long-term  capital gain of
individuals  at a maximum rate of 20%,  effective  with respect to  transactions
occurring on or after May 7, 1997. It is uncertain,  however,  whether,  in what
form, and with what effective date such legislation will be enacted.

A stockholder (other than certain exempt stockholders  including,  among others,
all  corporations  and certain  foreign  individuals  and entities) that tenders
Shares may be subject to 31% backup withholding unless the stockholder  provides
its TIN and certifies that such number is correct or properly  certifies that it
is awaiting a TIN, or unless an exemption  applies.  A stockholder  who does not
furnish its TIN may be subject to a penalty imposed by the IRS. See Section 3 of
the Offer to Purchase ("Procedure for Tendering Shares").

If backup  withholding  applies to a stockholder,  the Depositary is required to
withhold 31% from payments to such  stockholder.  Backup  withholding  is not an
additional  tax.  Rather,  the amount of the backup  withholding can be credited
against the Federal  income tax  liability  of the person  subject to the backup
withholding,  provided  that the  required  information  is given to the IRS. If
backup withholding results in an overpayment of tax, a refund can be obtained by
the stockholder upon filing an appropriate income tax return.

The  receipt of cash by  stockholders  pursuant to the Merger  should  result in
Federal income tax consequences to such stockholders  similar to those described
above.

8. PRICE RANGE OF THE SHARES; DIVIDEND POLICY OF THE COMPANY

The  Company's  common  stock is listed  and  traded  principally  on the Nasdaq
National  Market under the symbol CDAT.  The following  table sets forth for the
periods  indicated  the high and low sale prices of the common stock as reported
by the Nasdaq  National  Market,  based on the  Company's  1996 Annual Report to
Stockholders and other publicly available sources.

                                       9


<PAGE>

                           CONTROL DATA SYSTEMS, INC.

<TABLE>
<CAPTION>
                                                                            HIGH       LOW
                                                                          --------   -------
<S>                                                                       <C>        <C>

FISCAL 1995

      Quarter ended March 31, 1995 ....................................    $ 7.25    $ 5.88
      Quarter ended June 30, 1995  ....................................    $10.75    $ 6.63
      Quarter ended September 30, 1995   ..............................    $12.13    $ 8.63
      Quarter ended December 31, 1995 .................................    $21.38    $10.13

FISCAL 1996

      Quarter ended March 31, 1996 ....................................    $26.13    $14.25
      Quarter ended June 30, 1996  ....................................    $27.50    $18.00
      Quarter ended September 30, 1996   ..............................    $24.00    $12.75
      Quarter ended December 31, 1996 .................................    $28.63    $19.13

FISCAL 1997

      Quarter ended March 31, 1997 ....................................    $24.38    $13.50
      Quarter ended June 30, 1997  ....................................    $15.88    $12.75
      Quarter ending September 30, 1997 (through July 14, 1997)  ......    $21.19    $14.63
</TABLE>

On July 8, 1997,  the last full day of trading prior to the public  announcement
of the  proposed  acquisition  of the  Company  by  Parent  and  the  Purchaser,
according to published sources,  the reported closing price of the Shares on the
Nasdaq National Market was $15.69 per Share. On July 14, 1997, the last full day
of trading before the commencement of the Offer, according to published sources,
the  reported  closing  price of the  Shares on the Nasdaq  National  Market was
$20.19 per Share. STOCKHOLDERS ARE URGED TO OBTAIN CURRENT MARKET QUOTATIONS FOR
THE SHARES.  According to the Company's  Annual Report on Form 10-K for the year
ended  December 31, 1996 (the "1996 10-K"),  the Company has never paid any cash
dividends on its Common Stock.

9. EFFECT  OF  THE  OFFER  ON  THE MARKET FOR THE SHARES; NASDAQ NATIONAL MARKET
    LISTING; EXCHANGE ACT REGISTRATION; MARGIN REGULATIONS

The  purchase of Shares by the  Purchaser  pursuant to the Offer will reduce the
number of Shares that might otherwise trade publicly,  will reduce the number of
holders of Shares and could  thereby  adversely  affect the liquidity and market
value of the remaining publicly held Shares.

Nasdaq National Market Listing.

Depending upon the number of Shares purchased  pursuant to the Offer, the Shares
may no longer meet the standards for continued  inclusion in the Nasdaq National
Market.  According to the Nasdaq National  Market's  published  guidelines,  the
Shares would not be eligible to be included for listing if, among other  things,
the number of publicly held Shares falls below 500,000, the number of holders of
Shares  falls below 400 or the  aggregate  market  value of such  publicly  held
Shares falls below $3,000,000.  If these standards are not met, the Shares might
continue to be listed on The Nasdaq SmallCap Market,  Inc., but if the number of
holders of the Shares falls below 300, or if the number of publicly  held Shares
falls below  100,000,  or if the  aggregate  market value of such  publicly held
Shares falls below  $200,000 or there are not at least two registered and active
market makers (one of which may be a market maker  entering a stabilizing  bid),
Nasdaq rules provide that the  securities  would no longer qualify for inclusion
in the Nasdaq,  and Nasdaq  would cease to provide any  quotations.  Shares held
directly  or  indirectly  by an  officer  or  director  of the  Company  or by a
beneficial  owner  of  more  than  10%  of the  Shares  will  ordinarily  not be
considered as being publicly held for purposes of these standards.  In the event
the Shares are no longer eligible for Nasdaq  quotation,  quotations might still
be available from other sources.  The extent of the public market for the Shares
and the availability of such quotations would,  however,  depend upon the number
of holders of such Shares  remaining at such time, the interest in maintaining a
market in such Shares on the part of securities firms, the possible  termination
of  registration  of such Shares under the  Exchange Act as described  below and
other factors.  If  registration  of the Shares is not  terminated  prior to the
Merger,  trading of the Shares on the Nasdaq  National  Market or Nasdaq will be
discontinued,  and the registration of the Shares under the Exchange Act will be
terminated following the consummation of the Merger.

                                       10


<PAGE>







The  Purchaser  has been advised by the Company  that as of July 8, 1997,  there
were  approximately  14,500  holders of record of the  Shares.  The  Company has
advised  Purchaser that it believes that the number of beneficial  owners of the
Shares as of July 8, 1997 is in excess of 25,000.

Exchange Act Registration.

The Shares are currently  registered  under the Exchange Act. Such  registration
may be  terminated  upon  application  by the Company to the  Commission  if the
Shares are not listed on a national securities exchange and there are fewer than
300 record holders.  The termination of the registration of the Shares under the
Exchange Act would substantially reduce the information required to be furnished
by the Company to holders of Shares and to the Commission and would make certain
provisions  of the  Exchange  Act,  such  as  the  short-swing  profit  recovery
provisions of Section 16(b),  the requirement of furnishing a proxy statement in
connection with stockholders'  meetings and the requirements of Rule 13e-3 under
the  Exchange  Act with  respect  to  "going  private"  transactions,  no longer
applicable to the Shares.  In addition,  "affiliates" of the Company and persons
holding "restricted securities" of the Company may be deprived of the ability to
dispose of such  securities  pursuant  to Rule 144 under the  Securities  Act of
1933,  as amended.  If  registration  of the Shares  under the Exchange Act were
terminated, the Shares would no longer be "margin securities" or be eligible for
Nasdaq  reporting.  Purchaser  currently intends to seek to cause the Company to
terminate  the  registration  of the Shares under the Exchange Act as soon after
consummation  of the Offer as the  requirements  for termination of registration
are met.

Margin Regulations.

The Shares are currently "margin  securities" under the regulations of the Board
of Governors of the Federal Reserve System (the "Federal Reserve Board"),  which
has the effect,  among other things, of allowing brokers to extend credit on the
collateral  of such  Shares for the  purpose of buying,  carrying  or trading in
securities ("Purpose Loans").  Depending upon factors similar to those described
above regarding the continued  listing,  public trading and market quotations of
the Shares,  it is possible that,  following the purchase of the Shares pursuant
to the Offer, the Shares would no longer constitute "margin  securities" for the
purposes of the margin  regulations  of the Federal  Reserve Board and therefore
could no longer be used as collateral for Purpose Loans made by brokers.

10. SOURCE AND AMOUNT OF FUNDS

The Purchaser  estimates  that the total amount of funds  required by Parent and
the Purchaser to acquire all of the outstanding Shares pursuant to the Offer and
the Merger and to pay fees and  expenses to be incurred in  connection  with the
successful completion of the Offer and the Merger is approximately $280 million.

Investor Financing.

On July 8, 1997,  the  Investors  delivered to Parent a letter (the  "Investors'
Commitment  Letter")  confirming  their  commitment  to  provide  or cause to be
provided up to an aggregate $300 million of financing to Parent, the proceeds of
which will be transferred to the Purchaser upon or prior to the  consummation of
the Offer to the extent  necessary to permit the Purchaser to pay for the Shares
accepted for payment,  and to the Company upon or prior to the  consummation  of
the Merger,  to the extent necessary to permit the Company to pay the amounts to
be paid to the holders of Shares in the Merger. The obligations of the Investors
to provide or cause to be provided  such  financing to Parent are subject to the
satisfaction or waiver of the Minimum  Condition and all other conditions to the
Offer and the Merger and are subject to maximum  amounts of $200  million in the
case of WCAS VII and  $100  million  in the  case of WCAS CP III.  A copy of the
Investors  Commitment Letter is attached to this Statement as Exhibit (b)(1) and
incorporated herein by reference.

The terms of the Investors'  Commitment  Letter with respect to the provision of
such  financing  to Parent will be  incorporated  in a  definitive  Subscription
Agreement (the "Subscription Agreement").

11. CERTAIN INFORMATION CONCERNING THE COMPANY

General.

The following description of the Company's business has been taken from the 1996
10-K.

The Company is a global  software  and  services  company  dedicated  to helping
organizations develop the enterprise-wide systems required to create,  transmit,
access  and   control   business   information.   With  its   Rialto   brand  of
directory-enabled

                                       11


<PAGE>





software  tools and  services,  the  Company  is  focused  on the  architecture,
implementation  and lifetime  support of digital  commerce  and  enterprise-wide
client-server solutions for business and government.

The Company provides Enterprise  Integration software and service solutions that
include network design, installation and maintenance;  application re-hosting to
client-server  architectures;  the integration of disparate electronic messaging
systems;  and  corporate  directory  design and  implementation.  Its  Technical
Services  offerings include hardware and software  maintenance  services;  rapid
technology deployment in distributed environments;  and customer service hotline
support.  The Company's Product Design software provides  computer-aided  design
(CAD) software and services, primarily to the discrete manufacturing industry.

Available Information.

The Company is subject to the  information  and  reporting  requirements  of the
Exchange Act and, in accordance therewith, is required to file periodic reports,
proxy  statements  and other  information  with the  Commission  relating to its
business,  financial  condition and other  matters.  Certain  information  as of
particular  dates  concerning  the Company's  directors and officers  (including
their remuneration and stock options granted to them),  Shares held by them, the
principal holders of the Company's  securities and any material interest of such
persons in  transactions  with the Company and certain other matters is required
to be  disclosed  in proxy  statements  and annual  reports  distributed  to the
Company's  stockholders  and filed  with the  Commission.  Such  reports,  proxy
statements and other information are available for inspection and copying at the
public reference  facilities of the Commission  located at Room 1024,  Judiciary
Plaza,  450 Fifth Street,  N.W.,  Washington,  D.C.  20549,  and at the regional
offices of the  Commission  located in the  Citicorp  Center,  500 West  Madison
Street,  Suite 1400,  Chicago,  Illinois  60661 and in Seven World Trade Center,
Suite 1300, New York, New York 10048. Copies also may be obtained, by mail, upon
payment of the  Commission's  customary  charges by writing to the  Commission's
principal  office  at Room  1024,  Judiciary  Plaza,  450  Fifth  Street,  N.W.,
Washington,  D.C.  20549.  The Commission also maintains an Internet site on the
World Wide Web at  [http://www.sec.gov]  that contains reports, proxy statements
and other  information.  The information  also should be available at the Nasdaq
National Market, 1735 K. Street, N.W., Washington, D.C. 20006-1506.

12. SELECTED CONSOLIDATED FINANCIAL DATA OF THE COMPANY

The  selected  consolidated  financial  data of the Company for the fiscal years
ended  December  31,  1996,  1995 and 1994 have been taken or  derived  from the
audited  consolidated  financial  statements of the Company and its subsidiaries
that are contained in the 1996 10-K and the Company's Annual Report on Form 10-K
for the fiscal year ended December 31, 1995, as filed with the  Commission.  The
selected  consolidated  financial data of the Company for the three months ended
March  31,  1997  and  1996  have  been  taken or  derived  from  the  unaudited
consolidated  financial  statements of the Company and its subsidiaries that are
contained in the Company's  Quarterly  Reports on Form 10-Q for the three months
ended March 31, 1997 and 1996, as filed with the Commission.  More comprehensive
financial data concerning the Company and its  subsidiaries are contained in the
reports filed by the Company with the  Commission  and the financial  data below
are qualified by reference to such reports and all of the  financial  statements
and related  notes  contained  therein.  Such  reports may be obtained  from the
offices of the  Commission  and are  available as described in Section 11 of the
Offer to Purchase ("Certain Information Concerning the Company").

                                       12


<PAGE>






                          CONTROL DATA SYSTEMS, INC.
                      SELECTED CONSOLIDATED FINANCIAL DATA

                   ($ IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>

                                                            THREE MONTHS        
                                                          ENDED MARCH 31,              YEAR ENDED DECEMBER 31,          
                                                       ----------------------   --------------------------------------  
                                                            (UNAUDITED)         

                                                          1997         1996        1996         1995        1994
                                                       ----------   ---------   ----------   ---------- ------------
<S>                                                     <C>         <C>         <C>          <C>        <C>
OPERATING DATA:
Revenues  ..........................................     $ 60,953   $ 78,254    $305,696     $454,815     $  524,227
Cost of revenues   .................................       39,800     52,588     201,369      330,380        382,528
Operating expenses .................................       21,625     24,669      99,343      122,720        238,732
                                                          --------  --------    --------    ---------     ----------
 Earnings (loss) from operations  ..................         (472)       997       4,984        1,715        (97,033)
Nonoperating income, net ...........................       17,372      2,281      12,094        8,353          3,630
                                                          --------  --------    --------    ---------     ----------
 Earnings (loss) before income taxes ...............       16,900      3,278      17,078       10,068        (93,403)
Provision for income taxes  ........................          300        400       1,100        1,200          1,000
                                                          --------  --------    --------    ---------     ----------
 Net earnings (loss)  ..............................     $ 16,600   $  2,878    $ 15,978     $  8,868     $  (94,403)
                                                          ========  ========    ========    =========     ==========
INCOME PER COMMON SHARE INFORMATION:
Primary earnings (loss) per common share and common

 share equivalents .................................     $   1.19   $   0.20    $   1.09     $   0.67     $    (6.87)
Fully diluted earnings (loss) per common share and
 common share equivalents   ........................     $   1.19   $   0.20    $   1.09     $   0.62     $    (6.87)
</TABLE>

<TABLE>
<CAPTION>

                                                            AT MARCH 31,                AT DECEMBER 31,         
                                                        ---------------------   --------------------------------
                                                             (UNAUDITED)                                        
                                                                                                                
                                                          1997        1996        1996        1995          1994    
                                                        ---------   ---------   ---------   ---------     --------
<S>                                                     <C>         <C>         <C>         <C>          <C>     
BALANCE SHEET DATA:                                                                                             
                                                                                                                
 Cash and short-term investments  ..................    $  94,655   $ 79,475    $ 84,610     $ 84,034     $   85,415 
 Total assets   ....................................      216,786    218,012     220,297      227,485        300,568 
 Working capital   .................................      107,494    102,140     110,791       98,715         93,341 
 Stockholders' equity ..............................      110,765     88,798     109,020       83,498         82,306 
</TABLE>
                                               
Certain Company Projections.

In the ordinary course of the Company's business planning and budgeting process,
the Company's  management develops and presents to the Company Board projections
of the  future  performance  of the  Company.  The  Company  provided  WCAS with
projected  results of operations  derived from its current business plan for the
1997-1999 years.  These results were not represented to WCAS as expected results
of  operations,  but  rather  as  financial  models  for  management's  planning
decisions.

THE PROJECTIONS  SET FORTH BELOW WERE DEVELOPED FOR PLANNING  PURPOSES ONLY, ARE
NOT  TO BE  REGARDED  AS  FACTS  AND  SHOULD  NOT BE  RELIED  UPON  AS  ACCURATE
REPRESENTATIONS  OF FUTURE  RESULTS.  SUCH  PROJECTIONS  ARE  BASED ON  NUMEROUS
ESTIMATES  AND   ASSUMPTIONS   WHICH   THEMSELVES  ARE  BASED  UPON  EVENTS  AND
CIRCUMSTANCES   THAT  HAVE  NOT  TAKEN  PLACE  AND  ARE  INHERENTLY  SUBJECT  TO
SIGNIFICANT  FINANCIAL,  MARKET,  ECONOMIC  AND  COMPETITIVE  UNCERTAINTIES  AND
CONTINGENCIES  WHICH ARE DIFFICULT OR IMPOSSIBLE TO PREDICT  ACCURATELY  AND ARE
BEYOND PARENT'S,  THE PURCHASER'S AND THE COMPANY'S CONTROL. THEY ARE INHERENTLY
IMPRECISE  AND THERE  CAN BE NO  ASSURANCE  THAT THE  PROJECTED  RESULTS  CAN BE
REALIZED.

                                       13


<PAGE>






THEREFORE,  IT IS EXPECTED THAT THERE WILL BE DIFFERENCES BETWEEN THE ACTUAL AND
PROJECTED  RESULTS AND THAT THE ACTUAL RESULTS MAY BE MATERIALLY HIGHER OR LOWER
THAN THOSE PROJECTED.  THE PROJECTIONS WERE NOT PREPARED IN CONTEMPLATION OF THE
OFFER OR THE MERGER AND,  THEREFORE,  DO NOT REFLECT ANY  BENEFITS OR COSTS THAT
COULD RESULT AS A CONSEQUENCE OF CONSUMMATION  OF THE OFFER OR THE MERGER.  NONE
OF THE COMPANY,  PARENT NOR ANY OTHER PARTY ASSUMES ANY  RESPONSIBILITY  FOR THE
ACCURACY OF SUCH  INFORMATION.  THE INCLUSION OF THE PROJECTIONS SET FORTH BELOW
SHOULD NOT BE REGARDED AS A REPRESENTATION  BY PARENT OR THE PURCHASER OR ANY OF
THEIR AFFILIATES OR  REPRESENTATIVES  OR BY THE COMPANY OR ANY OF ITS AFFILIATES
OR REPRESENTATIVES THAT THE PROJECTED RESULTS WILL BE ACHIEVED.  THE PROJECTIONS
SET FORTH BELOW WERE NOT  PREPARED  WITH A VIEW  TOWARDS  PUBLIC  DISCLOSURE  OR
COMPLYING WITH PUBLISHED GUIDELINES OF THE COMMISSION OR GUIDELINES  ESTABLISHED
BY THE AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS.  THE PROJECTIONS HAVE
NOT BEEN EXAMINED,  REVIEWED OR COMPILED BY THE COMPANY'S  INDEPENDENT AUDITORS,
AND  ACCORDINGLY  THEY HAVE NOT  EXPRESSED AN OPINION OR ANY OTHER  ASSURANCE ON
THEM.

The  projected  business  plan  results  are set  forth  below  for  each of the
Company's three principal product and services groups.

<TABLE>
<CAPTION>

                                                           YEAR ENDING DECEMBER 31,

                                                    ---------------------------------------
                                                      1997          1998          1999
                                                    -----------   -----------   -----------
                                                               ($ IN THOUSANDS)

<S>                                                 <C>           <C>           <C>

REVENUES

Enterprise Integration Services   ...............     $  175.8      $  216.3      $  274.1
Product Design and Information Services .........         39.7          41.8          44.6
Technical Services ..............................         69.4          64.2          59.5
                                                       --------      --------      --------
Total  ..........................................     $  284.8      $  322.3      $  378.2
                                                       ========      ========      ========
EARNINGS BEFORE INTEREST AND TAXES (EBIT)

Enterprise Integration Services   ...............     $    5.6      $   20.4      $   38.7
Product Design and Information Services .........          7.0           7.5           8.8
Technical Services ..............................         17.1          15.9          13.9
Selling, General and Administrative Costs  ......        (17.1)        (18.0)        (18.9)
                                                       --------      --------      --------
Consolidated EBIT  ..............................     $   12.6      $   25.8      $   42.5
                                                       ========      ========      ========
</TABLE>

Parent   believes  that  the  foregoing   projections  are  based  upon  certain
assumptions  and estimates  that are subject to  considerable  uncertainty.  The
Purchaser did not rely on the Company's  projections in formulating  its bid for
the Company.

The Company's business plan was not prepared with a view to public disclosure or
compliance  with  published  guidelines  of the  Commission  or  the  guidelines
established by the American Institute of Certified Public Accountants  regarding
projections,  and are included in this Offer to Purchase  only because they were
provided  to Parent  and the  Purchaser.  None of  Parent,  the  Purchaser,  the
Investors,  the Dealer Manager or the Company assumes any responsibility for the
accuracy of such information.

13. CERTAIN  INFORMATION  CONCERNING  WCAS  VII,  WCAS  CP  III,  PARENT AND THE
     PURCHASER

WCAS VII and WCAS CP III.

WCAS VII and WCAS CP III are Delaware limited  partnerships  principally engaged
in the business of investing in and acquiring  companies in the  healthcare  and
information  processing  industries.  The sole general  partners of WCAS VII and
WCAS CP III are,  respectively,  WCAS VII  Partners,  L.P.,  a Delaware  limited
partnership  ("VII  Partners"),  and WCAS CP III Associates  L.L.C.,  a Delaware
limited liability company ("CP III Associates").  The business addresses of WCAS
VII,  WCAS CP III,  VII Partners and CP III  Associates  are c/o Welsh,  Carson,
Anderson & Stowe, 320 Park Avenue, Suite 2500, New York, N.Y. 10022. WCAS CP III
is a  newly  organized  limited  partnership  and it is  contemplated  that  its
investment in Parent will be its initial investment.

                                       14


<PAGE>

Parent.

Parent is a newly formed Delaware corporation organized at the direction of WCAS
VII and WCAS CP III in connection with the Offer and the Merger.  The address of
Parent is 1013 Centre Road, Wilmington, Delaware 19805. Currently, WCAS VII owns
all of the  issued  and  outstanding  common  stock of  Parent.  Until the first
acceptance for payment of Shares  pursuant to the Offer,  it is not  anticipated
that Parent will have any  significant  assets or liabilities  (other than those
arising  under  the  Merger  Agreement  and  the  Subscription  Agreement  or in
connection with the  transactions  contemplated  thereby) or engage in any other
activities than those incident to its formation and  capitalization,  the Offer,
the Merger Agreement, the Merger and the Subscription Agreement.

Parent is now, and after the consummation of the Offer and the Merger will be, a
privately  held company.  The  directors  and  executive  officers of Parent are
Patrick J. Welsh  (Chairman),  Thomas E. McInerney  (President),  and Rudolph E.
Rupert (Vice President, Secretary and Treasurer).

The Purchaser.

The Purchaser is a newly formed Delaware corporation  organized at the direction
of  Parent in  connection  with the Offer and the  Merger.  The  address  of the
Purchaser  is 1013 Centre  Road,  Wilmington,  Delaware  19805.  Until the first
acceptance for payment of Shares  pursuant to the Offer,  it is not  anticipated
that the Purchaser will have any significant  assets or liabilities  (other than
those arising under the Merger  Agreement or in connection with the transactions
contemplated  thereby) or engage in any activities  other than those incident to
its formation and  capitalization,  the Subscription  Agreement,  the Offer, the
Merger Agreement and the Merger.  As of the date of this Offer to Purchase,  the
authorized  capital  stock of the  Purchaser  consists of 1,000 shares of common
stock, all of which are issued and outstanding and owned by Parent.

The  directors  and  executive  officers  of  the Purchaser are Patrick J. Welsh
(Chairman),  Thomas  E.  McInerney  (President),  and  Rudolph  E.  Rupert (Vice
President, Secretary and Treasurer).

The  name,  business  address,   current  principal  occupation  or  employment,
five-year  employment  history and  citizenship  of each  executive  officer and
director  of  Parent  and the  Purchaser,  and of each  general  partner  of VII
Partners  and  each  managing  member  of CP III  Associates,  are set  forth in
Schedule I hereto.

Except as set forth in this Offer to Purchase,  neither Parent nor the Purchaser
nor, to the best  knowledge  of Parent and the  Purchaser,  any person  named in
Schedule I hereto, or any associate or  majority-owned  subsidiary of any of the
foregoing  or of any  person  so  listed,  beneficially  owns or has a right  to
acquire any equity  securities of the Company,  nor, except as set forth in this
Offer to Purchase,  the Parent or the  Purchaser,  or, to the best  knowledge of
Parent and the Purchaser or any of the persons or entities referred to above, or
any of the respective  executive  officers,  directors or subsidiaries of any of
the foregoing, effected any transactions in the equity securities of the Company
during the past 60 days.

Except as described in this Offer to Purchase,  neither  Parent or the Purchaser
nor, to the best  knowledge  of Parent and the  Purchaser,  any person  named in
Schedule  I  hereto,  has  any  present  or  proposed   contract,   arrangement,
understanding  or  relationship  (whether or not legally  enforceable)  with any
other person with respect to any securities of the Company,  including,  but not
limited to, any contract, arrangement,  understanding or relationship concerning
the transfer or the voting of any  securities  of the Company,  joint  ventures,
loan or option  arrangements,  puts or calls,  guaranties  of loans,  guaranties
against  loss or the giving or  withholding  of proxies.  Except as described in
this  Offer  to  Purchase,  there  have  been  no  contracts,   negotiations  or
transactions  between  Parent and the  Purchaser  or, to the best  knowledge  of
Parent and the  Purchaser,  any person  named in  Schedule I hereto,  on the one
hand, and the Company or its affiliates, on the other hand, concerning a merger,
consolidation or acquisition, a tender offer or other acquisition of securities,
an election of  directors  or a sale or other  transfer of a material  amount of
assets. Except as set forth herein,  neither of Parent nor the Purchaser nor, to
the best  knowledge of Parent and the  Purchaser any persons named in Schedule I
hereto, has had any business  relationships or has entered into any transactions
with the Company or any of its executive officers, directors or has entered into
any transactions with the Company or any of its executive officers, directors or
affiliates  which  are  required  to be  disclosed  pursuant  to the  rules  and
regulations of the Commission.

14. BACKGROUND OF THE OFFER; CONTACTS WITH THE COMPANY

In November  1995,  WCAS met with  representatives  of the Company's  management
concerning  the  possibility of an acquisition of the Company by one of the WCAS
managed funds. On November 1, 1995, the Company and WCAS VII

                                       15


<PAGE>

entered into a Confidentiality  Agreement.  Thereafter,  representatives of WCAS
met with  representatives  of the  Company and the  Company  provided  WCAS with
certain business and financial information concerning the Company.

In December 1995, WCAS notified the Company orally that it was not interested in
pursuing an acquisition of the Company.

In  March  1997,  representatives  of WCAS requested that the Company update the
business  and  financial  information  they  had been provided earlier. In April
1997,  Messrs.  James  E.  Ousley,  President and Chief Executive Officer of the
Company,  and  W. Douglas Hajjar, Chairman of the Board of the Company, met with
Messrs.  Patrick  J. Welsh, Thomas E. McInerney and Rudolph E. Rupert of WCAS to
discuss strategic plans and alternatives for the Company.

On May 21,  1997,  representatives  of WCAS  again met with  Messrs.  Ousley and
Hajjar to discuss the  possibility of WCAS  purchasing  the Company.  After that
discussion,  the Company provided the additional information WCAS had requested.
Subsequent  to  this  meeting,   the  Company   provided  WCAS  with  background
information on technology and product development.

On June 11 and 12,  1997,  WCAS  reviewed  with the Company  various  marketing,
technology  and  financial  matters.  The Company also gave WCAS  permission  to
contact selected customers.

On June 16, 1997, WCAS and its financial  advisors commenced their due diligence
review of the Company and its subsidiaries. On June 18, 1997, in connection with
such review, Mr. Rudolph E. Rupert of WCAS met with selected  representatives of
the  Company's  European  subsidiaries.  From June 26 through July 8, 1997,  the
parties negotiated documentation for the contemplated transactions.

On July 8, 1997,  discussions  were held among  representatives  of WCAS and the
Company,  regarding  the price at which WCAS  would be  willing  to acquire  the
Shares.  The purchase  price of $20.25 per Share,  in cash was  presented to the
Company  Board on behalf of the  Purchaser in the early evening of July 8, 1997.
Following such discussions, Cowen & Company delivered its opinion to the Company
Board that,  as of such date,  the  financial  terms of the Offer and the Merger
were  fair  to the  stockholders  of the  Company  (other  than  Parent  and its
affiliates) from a financial point of view as of the date of such opinion.  Late
in the evening of July 8, 1997, the Company Board and the Boards of Directors of
Parent and the Purchaser each unanimously  approved the Merger Agreement and the
other transactions  contemplated thereby.  Following such approvals,  the Merger
Agreement was executed and delivered and the transaction was publicly  announced
before the financial markets in the U.S. opened on July 9, 1997.

15. THE MERGER AGREEMENT

The following is a summary of the material terms of the Merger Agreement, a copy
of which appears as Exhibit  (c)(1) to the Schedule 14D-1 filed by the Purchaser
and Parent with the  Commission  in connection  with the Offer.  Such summary is
qualified in its entirety by reference to the Merger Agreement.

The Offer.

The Offer has been commenced pursuant to the Merger Agreement. The obligation of
the Purchaser to accept for payment and pay for Shares tendered  pursuant to the
Offer is  subject  to the  satisfaction  or  waiver  of the  Minimum  Condition,
expiration  or  termination  of all waiting  periods  imposed by the HSR Act and
certain  other  conditions  that are  described  in  Section  18 of the Offer to
Purchase  ("Certain  Conditions of the Offer").  The Purchaser has agreed not to
change the form of consideration to be paid pursuant to the Offer,  decrease the
price  per Share of the  Offer or the  number  of Shares  sought in the Offer or
impose any  condition to the Offer in addition to those  described in Section 18
of the Offer to Purchase ("Certain  Conditions of the Offer"), but may waive any
of the conditions to the Offer or change any of the other terms or conditions of
the Offer in its sole discretion.

Initially,  the  Offer  will  expire  twenty  (20)  business  days  after  it is
commenced.  The Purchaser has agreed, subject to the terms and conditions of the
Offer,  to accept for payment and pay for all Shares  validly  tendered  and not
withdrawn  pursuant to the Offer promptly after the expiration of the Offer.  If
all conditions of the Offer have not been satisfied or, to the extent permitted,
waived by the Purchaser as of any scheduled  expiration date, the Purchaser may,
or if required to do so by law, will, extend the Offer from time to time.

                                       16


<PAGE>

Parent has been advised by the Company that all of the  Company's  directors and
executive officers intend either to tender their Shares pursuant to the Offer or
to vote in favor of the Merger.

Directors.

The Merger Agreement provides that, effective upon the acceptance for payment by
the Purchaser of a majority of the outstanding Shares pursuant to the Offer (and
deposit with the Depositary of funds sufficient to make payment  therefor),  the
Purchaser has the right to designate such number of directors, rounded up to the
next whole number,  on the Company Board as equals the product of (i) the number
of directors on the Company Board (after giving affect to any required  increase
in the size of the  Company  Board) and (ii) the  percentage  that the number of
Shares owned by the Purchaser  (including  Shares accepted for payment for which
deposit  has been made as  aforesaid)  bears to the total  number of Shares then
outstanding.  The Company has agreed,  subject to Section  14(f) of the Exchange
Act,  to take all  action  necessary  to cause such  designees  to be elected or
appointed to the Company Board and the board of directors of each  subsidiary of
the Company,  either by increasing the size of the Company Board (or the size of
the boards of directors of such  subsidiaries)  or securing the  resignations of
such number of  directors as is  necessary  to provide the  Purchaser  with such
level of representation.  The Company has further agreed to use its best efforts
to  cause  individuals  designated  by the  Purchaser  to  constitute  the  same
percentage  as they  represent on the Company  Board,  on each  committee of the
Company   Board  and  of  the  board  of  each   subsidiary   of  the   Company.
Notwithstanding  the foregoing,  at all times prior to the Effective Time of the
Merger at least two  directors on the Company  Board will be directors in office
as of the date of the Merger  Agreement  who are not employees of the Company or
any of its  subsidiaries  or affiliates of Parent or the Purchaser  ("Continuing
Directors").

In connection  with the  foregoing,  the Purchaser has provided the Company with
information concerning Messrs. Patrick J. Welsh, Thomas E. McInerney and Rudolph
E. Rupert for inclusion in the Company's Schedule 14D-9 filed in connection with
the Offer.

The Merger.

The Merger Agreement provides that as soon as practicable after the satisfaction
or waiver (if  permissible)  of the  conditions  to the Merger and in accordance
with the relevant  provisions of the DGCL, the Purchaser will be merged with and
into the Company. As a result of the Merger, the separate corporate existence of
the  Purchaser  will  cease  and the  Company  will  continue  as the  Surviving
Corporation and will become a wholly-owned subsidiary of Parent.

Conversion of Securities.

At the Effective Time, each Share issued and  outstanding  immediately  prior to
the  Effective  Time (other than Shares  owned by Parent,  the  Purchaser or any
subsidiary thereof or held in the treasury of the Company,  or any subsidiary of
the Company and other than Shares held by  stockholders  who shall have properly
demanded and perfected  appraisal  rights under Section 262 of the DGCL) will be
canceled  and  converted  at the  Effective  Time into the right to receive  the
Merger Consideration.

The  Purchaser  or the  designated  paying agent shall be entitled to deduct and
withhold  from  the  consideration  otherwise  payable  pursuant  to the  Merger
Agreement to any holder of Shares such amounts that the  Purchaser or the paying
agent is  required  to deduct and  withhold  with  respect to the making of such
payment under the Code, the rules and regulations  promulgated thereunder or any
other applicable law.

Pursuant to the Merger  Agreement,  each share of common stock of the  Purchaser
issued  and  outstanding  immediately  prior  to the  Effective  Time  shall  be
automatically  converted  into and  become  at the  Effective  Time one share of
common stock of the Surviving Corporation.

The  Merger  Agreement  provides  for the  acceleration  of the  vesting  of all
unvested stock options  outstanding  under the Company Stock Option Plan so that
each  holder  of an option  thereunder  will be  entitled  to  receive  from the
Company,  as of the Effective  Time,  for each Share subject to such option,  an
amount in cash in  cancellation  of such option equal to the excess,  if any, of
the  Merger  Consideration  over the per share  exercise  price of such  option,
subject to applicable withholding, if any.

The Merger  Agreement  further provides that all options  outstanding  under the
Company Stock Purchase Plan immediately prior to the Effective Time shall become
exercisable to the extent of payroll  deductions  accumulated by participants as
of such  date,  and that  each  participant  thereunder  shall be deemed to have
purchased that number of whole Shares subject to

                                       17


<PAGE>


the options held by such participant at a per Share price determined pursuant to
the  provisions  of such Plan and  shall  receive  a cash  payment  equal to the
balance,  if any, of such  accumulated  payroll  deductions  remaining after the
deemed purchase of such Shares. As of the Effective Time, each participant under
such Plan  shall  receive,  for each Share  such  participant  is deemed to have
purchased thereunder, the Merger Consideration. All such payments are subject to
applicable withholding taxes, if any.

The Company Stock Plans and all options issued and  outstanding  thereunder will
terminate effective as of the Effective Time.

Directors and Officers; Certificate of Incorporation and By-laws.

The Merger  Agreement  provides that the directors of the Purchaser  immediately
prior to the  Effective  Time will be the  initial  directors  of the  Surviving
Corporation  and that  the  officers  of the  Company  immediately  prior to the
Effective Time will be the initial officers of the Surviving Corporation,  until
their respective successors are duly elected and qualified. The Merger Agreement
provides that, at the Effective  Time,  the  certificate  of  incorporation  and
By-laws of the  Purchaser  will  become the  certificate  of  incorporation  and
By-laws of the Surviving Corporation.

Approvals Required under the DGCL and the Company Certificate.

Pursuant  to the DGCL and the Company  Certificate,  the  affirmative  vote of a
majority of the outstanding Shares entitled to vote thereon is required to adopt
the Merger Agreement and approve the Merger.

Representations and Warranties.

The Merger Agreement contains various customary  representations  and warranties
of the parties thereto including, among others,  representations by the Company,
Parent and the Purchaser as to corporate  status and the  enforceability  of the
Merger  Agreement  against  each  such  party  and  by  the  Company  as to  its
capitalization,  compliance  with law, the accuracy of financial  statements and
filings with the Commission and the absence of certain  material adverse changes
or events  concerning the Company's  business from December 31, 1996 to the date
of the Merger Agreement.

Stockholders' Meeting.

The Merger Agreement provides that the Company will take all action necessary to
call,  give  notice  of  and  convene  a  meeting  of  its   stockholders   (the
"Stockholders'  Meeting") to consider and vote upon the approval and adoption of
the Merger Agreement and the Merger as soon as reasonably  practicable following
the acquisition by the Purchaser of a majority of the  outstanding  Shares (on a
fully  diluted  basis).  Parent  and the  Purchaser  have  agreed to vote at the
Stockholders'  Meeting  all Shares  owned or  acquired  pursuant to the Offer or
otherwise  by them or any of their  affiliates  in favor of the  Merger.  In the
event that the Purchaser  acquires such number of Shares as constitutes at least
90% of  the  outstanding  Shares,  the  parties  will  take  all  necessary  and
appropriate  action to cause the Merger to become effective,  in accordance with
Section  253  of  the  DGCL,  as  soon  as  reasonably  practicable  after  such
acquisition, without a meeting of the stockholders of the Company.

The  Merger  Agreement  provides  that,  in  connection  with the  Stockholders'
Meeting,  the Company will file a proxy statement with the Commission  under the
Exchange Act (the "Proxy  Statement"),  and cause the definitive Proxy Statement
to be delivered to stockholders promptly following review by the Commission. The
Company has agreed not to distribute the Proxy  Statement and each amendment and
supplement  thereto without the prior consent of Parent and its counsel.  Parent
and the  Purchaser  have  agreed to  cooperate  fully  with the  Company  in the
preparation of the Proxy Statement and any amendments and  supplements  thereto.
The  Company  has  agreed to use its best  efforts  to have the Proxy  Statement
cleared by the  Commission  and shall cause a definitive  Proxy  Statement to be
distributed to its stockholders  entitled to vote upon the Merger as promptly as
practicable thereafter.

Conduct of the Company's Business.

In the Merger  Agreement,  the Company has agreed to conduct the business of the
Company  and its  subsidiaries  only in the  ordinary  course  of  business  and
consistent with past practice. In particular, the Company has covenanted,  among
other things,  not to do any of the following  prior to the Effective  Time: (i)
sell, pledge, dispose of or encumber (or permit any subsidiary of the Company to
sell,  pledge,  dispose  of or  encumber)  any  assets  of  the  Company  or any
subsidiary  of the  Company,  except  inventory  and  immaterial  assets  in the
ordinary  course of business;  (ii) amend or propose to amend its Certificate of
Incorporation  or By-Laws;  (iii) split,  combine or reclassify any  outstanding
shares of its capital stock, or declare,  set aside or pay any dividend  payable
in cash, stock, property or otherwise with respect to such shares (except for

                                       18


<PAGE>

any dividends paid in the ordinary course to the Company or to any  wholly-owned
subsidiary of the Company); (iv) redeem,  purchase,  acquire or offer to acquire
(or permit any subsidiary of the Company to redeem,  purchase,  acquire or offer
to  acquire)  any shares of its  capital  stock;  (v) enter  into any  contract,
agreement,  commitment  or  arrangement  with  respect  to any of the  foregoing
matters; (vi) issue, sell, pledge or dispose of, or agree to issue, sell, pledge
or  dispose  of,  any  additional  shares  of,  or  securities   convertible  or
exchangeable for, or any options,  warrants or rights of any kind to acquire any
shares of, its capital  stock of any class or other  property or assets  whether
pursuant to the Company  Stock Option Plan or the Company  Stock  Purchase  Plan
(except in respect of outstanding options under such Plans), or otherwise; (vii)
acquire  (by  merger,  consolidation  or  acquisition  of stock or  assets)  any
corporation,  partnership or other  business  organization  or division  thereof
(except an existing  wholly-owned  subsidiary of the Company);  (viii) incur any
indebtedness  for  borrowed  money or issue  any debt  securities  in an  amount
exceeding  $3,000,000 in the  aggregate;  (ix) enter into or modify any material
contract,  lease,  agreement or  commitment,  except in the  ordinary  course of
business and consistent  with past  practice;  (x)  terminate,  modify,  assign,
waive,  release or relinquish any material contract rights or amend any material
rights  or  claims  not in the  ordinary  course  of  business;  (xi)  settle or
compromise any material claim,  action, suit or proceeding pending or threatened
against the  Company,  or, if the Company may be liable or  obligated to provide
indemnification,  against the Company's directors or officers, before any court,
governmental  agency or  arbitrator;  (xii) grant any  increase in the salary or
other  compensation  of its  employees  except  (A)  pursuant  to the  terms  of
employment  agreements  in  effect  on the  date  of the  Merger  Agreement  and
previously  disclosed  to Parent  and (B) in the case of  employees  who are not
executive  officers of the  Company,  in the  ordinary  course of  business  and
consistent  with past practice;  (xiii) grant any bonus to any employee or enter
into any  employment  agreement  or make any loan to or enter into any  material
transaction  of any  other  nature  with  any  employee  of the  Company  or any
subsidiary of the Company; or (xiv) with certain  exceptions,  adopt or amend in
any respect, any welfare or benefit plan or arrangement for directors,  officers
or employees.

Notification of Certain Matters.

The Company and Parent are each obligated under the Merger Agreement to give the
other prompt  notice of (i) the  occurrence,  or failure to occur,  of any event
that such party believes would be likely to cause any of its  representations or
warranties  contained in the Merger  Agreement to be untrue or inaccurate in any
material  respect at any time from the date  thereof to the  Effective  Time and
(ii) any material failure of the Company,  Parent or the Purchaser,  as the case
may be, or any officer,  director,  employee or agent thereof, to comply with or
satisfy any covenant, condition or agreement to be complied with or satisfied by
it under the Merger Agreement.

Indemnification and Insurance.

The Merger Agreement  provides for the survival beyond the Merger,  for a period
of  not  less  than  six  years  from  the  Effective  Time,  of all  rights  to
indemnification  and  exculpation  from  liability  set  forth  in  the  Company
Certificate and By-laws as in effect on the date of the Merger Agreement. During
such period, such provisions may not be amended,  repealed or otherwise modified
in any manner that would adversely  affect the rights  thereunder of individuals
who, on or prior to the Effective Time, were directors,  officers,  employees or
agents of the  Company  ("Indemnified  Parties")  unless  such  modification  is
required by law. Parent has agreed to guarantee the performance of the Company's
obligations  under the existing  indemnification  agreements  with the Company's
directors and officers.

In addition,  pursuant to the Merger  Agreement,  Parent has agreed to cause the
Surviving  Corporation,  for a period of two years after the expiration  date of
the Company's  current policy,  to maintain  officers' and directors'  liability
insurance  covering those  Indemnified  Parties who are currently covered by the
Company's directors' and officers' liability insurance policy, on terms that are
no less  favorable  to such  Indemnified  Parties than the terms of such current
coverage.  The Surviving  Corporation is not obligated to expend in any one year
an amount in excess of 150% of the  annual  premiums  currently  payable  by the
Company for such insurance.

Further Assurances.

Pursuant  to the terms of the Merger  Agreement  and  subject to the  conditions
thereof, each of the parties thereto has agreed to use all reasonable efforts to
take,  or cause to be taken,  all  action  and to do,  or cause to be done,  all
things  necessary,  proper or  advisable  to  consummate  and make  effective as
promptly as practicable the transactions  contemplated by the Merger  Agreement,
including,  without  limitation,  using all  reasonable  efforts  to obtain  all
necessary   waivers,   consents  and  approvals  and  to  effect  all  necessary
registrations and filings. The foregoing does not obligate Parent or the Company
to make or agree to any  divestiture  of a significant  asset in order to obtain
any waiver, consent or approval.

                                       19


<PAGE>

Publicity.

Under the Merger Agreement,  Parent and the Company have agreed,  subject to the
requirements  of law,  not to issue any press  release or make any other  public
announcement concerning the Merger Agreement or the related transactions without
the prior consent of the other party.

Conditions to the Merger.

Under the Merger Agreement,  the respective  obligations of each party to effect
the Merger are subject to the  satisfaction at or prior to the Effective Time of
the  following  conditions:  (i) the Merger  Agreement and the Merger shall have
been  approved  and adopted by the  requisite  vote of the  stockholders  of the
Company; (ii) any waiting period under the HSR Act shall have expired or earlier
terminated;  (iii) no preliminary or permanent injunction or other order, decree
or ruling shall be in effect that would restrain the effective  operation of the
business of the Company and its subsidiaries  from and after the Effective Time,
and (iv) no  proceeding  challenging  the Merger  Agreement or the  transactions
contemplated thereby or seeking to prohibit,  alter, prevent or materially delay
the Merger  shall be pending.  The  obligations  of Parent and the  Purchaser to
effect the Merger are also  subject to the  Purchaser  having  purchased  Shares
pursuant to the Offer.

Inquiries and Negotiations.

Until  termination of the Merger  Agreement,  neither the Company nor any of its
subsidiaries,  nor  any of  their  respective  directors,  officers,  employees,
representatives  or other  agents,  may,  directly  or  indirectly,  solicit  or
initiate any  discussions,  submissions  of proposals or offers or  negotiations
with,  or,  subject to the  fiduciary  duties of the Company Board as advised by
counsel,  participate in any  negotiations  or discussions  with, or provide any
information or data of any nature  whatsoever to, or otherwise  cooperate in any
other way with, or assist or participate in,  facilitate or encourage any effort
or attempt by, any person, corporation, entity or "group" (as defined in Section
13(d) of the Exchange Act) other than Parent and its affiliates, representatives
and agents (each, a "Third Party") in connection with any merger, consolidation,
sale of any substantial  subsidiary or division that is material to the business
of the Company and its  subsidiaries,  sale of shares of capital  stock or other
equity   securities,   tender  or   exchange   offer,   recapitalization,   debt
restructuring or similar  transaction  involving the Company (such  transactions
being  defined in the  Merger  Agreement  as  "Alternative  Transactions").  The
Company has agreed to notify Parent immediately if any proposal,  offer, inquiry
or other contact is received by or continued with, the Company in respect of any
such transaction, and, in any such notice, to indicate the identity of the Third
Party and the terms and  conditions  of any proposals or offers or the nature of
any  inquiries or  contacts,  and  thereafter  must keep Parent  informed,  on a
current  basis,  of the status and terms of any such proposals or offers and the
status of any such discussions or negotiations.  The Company is required to give
Parent  no less than two  business  days'  notice  prior to the  execution  of a
definitive  agreement with respect to an Alternative  Transaction  and two days'
notice (or the longest legally permissible notice, if less than two days) of any
public announcement relating to any Alternative Transaction.

Prior to furnishing any non-public information to, or entering into negotiations
or  discussions  with,  any Third  Party,  the  Company is required to obtain an
executed confidentiality  agreement from such Third Party on terms substantially
the same as, or no less  favorable to the Company in any material  respect than,
those contained in the Confidentiality Agreement. The Company is prohibited from
releasing  any  Third  Party  from,  or  waiving  any  provision  of,  any  such
confidentiality  agreement or any other  confidentiality or standstill agreement
to which the  Company is a party.  As of the date of the Merger  Agreement,  the
Company was  required to cease,  and cause its  subsidiaries  and the  officers,
directors,  employees,  representatives  and other agents of the Company and its
subsidiaries to cease, all discussions, negotiations and communications with all
Third Parties and demand the immediate  return of all  confidential  information
previously provided to Third Parties.

Termination; Fees and Expenses.

The Merger  Agreement may be  terminated  and the Merger may be abandoned at any
time prior to the Effective Time, notwithstanding any requisite approval thereof
by the stockholders of the Company:

      (i)  by  mutual  action  of  the  Boards  of  Directors  of Parent and the
   Company;

      (ii) by either  Parent or the  Company,  if the Offer  shall not have been
   consummated  on or before the close of business on October 31,  1997,  or the
   Merger  shall not have been  effected on or prior to the close of business on
   December 31, 1997;  unless, in either case, such event has been caused by the
   breach of the Merger Agreement by the party seeking such termination.

                                       20


<PAGE>


      (iii) by Parent if (1) the conditions to Parent's obligation to consummate
   the Merger  shall not have been  complied  with or  performed in any material
   respect  prior to December 31, 1997;  (2) the Offer is  terminated or expires
   without the purchase of any Shares  thereunder,  unless such  termination  or
   expiration  has been  caused by the  failure  of Parent or the  Purchaser  to
   perform in any material  respect its obligations  under the Merger  Agreement
   and the  Offer;  (3)  the  Board  of  Directors  of the  Company  shall  have
   withdrawn,  modified  or  amended  in a  manner  adverse  to  Parent  and the
   Purchaser  its  approval  or  recommendation  of the Offer and the  Merger or
   approved, recommended or endorsed any proposal for, or authorized the Company
   to enter into, an Alternative Transaction;  or (4) Cowen & Company shall have
   withdrawn its opinion at any time prior to the earlier of (A)  acceptance for
   payment  of Shares  by the  Purchaser  under the Offer and (B) the  Effective
   Time; or

      (iv) by the Company if (1) the  conditions to the Company's  obligation to
   consummate  the Merger shall not have been  complied with or performed in any
   material  respect  prior to December 31, 1997; or (2) prior to the earlier of
   (x) the acceptance for payment of Shares by the Purchaser under the Offer and
   (y) stockholder  approval of the Merger Agreement and the Merger, the Company
   shall  enter  into  a  definitive   written  agreement  with  respect  to  an
   Alternative  Transaction with a Third Party, or a Third Party has commenced a
   tender offer which,  in either case, the Company Board believes in good faith
   is  more  favorable  to the  Company's  stockholders  than  the  transactions
   contemplated by the Merger Agreement, provided, that all amounts payable upon
   the  occurrence of a "Payment  Event" (as defined) shall have been paid prior
   to such  termination  (except  that amounts due in respect of expenses may be
   paid after  termination,  as soon as  practicable  after the  delivery to the
   Company of required documentation).

If the Merger Agreement is terminated due to a "Payment Event", the Company will
be required to pay to Parent,  within two business days  following  such Payment
Event,  (i) a fee of $8,200,000 in cash, plus (ii) all reasonable and documented
out-of-pocket costs and expenses of Parent and the Purchaser,  including without
limitation  fees and expenses of counsel,  accountants,  investment  bankers and
other advisors and printing expenses.  In the event that the Merger Agreement is
terminated  for any other  reason,  and the Company  shall have failed to comply
with or perform,  or shall have breached,  in any material  respect,  any of its
covenants or agreements contained in the Merger Agreement, the Company shall pay
to Parent,  within two business days following such  termination,  the costs and
expenses referred to in clause (ii) of the preceding sentence,  except that such
costs and  expenses  will not be payable if Parent or the  Purchase has breached
any of its covenants or agreements in any material respect.

The Merger  Agreement  defines a "Payment  Event" as (i) the  termination of the
Merger  Agreement  by Parent for the  reasons  described  in clause  (iii)(3) or
clause  (iii)(4)  above;  (ii) the  termination  of the Merger  Agreement by the
Company  for the  reasons  described  in  clause  (iv)(2)  above;  or (iii)  the
occurrence  of any of the  following  events  within  6  months  of the  date of
termination of the Merger  Agreement  (except in the event of termination due to
Parent's or the Purchaser's  breach of any of its covenants or agreements in any
material respect), whereby stockholders of the Company receive, pursuant to such
event, cash,  securities or other consideration  having an aggregate value, when
taken  together  with  the  value  of  any  securities  of  the  Company  or its
subsidiaries otherwise held by the stockholders of the Company after such event,
in excess  of  $20.90  per  Share:  (w) the  Company  is  acquired  by merger or
otherwise  by a Third  Party;  (x) a Third Party  acquires  more than 50% of the
total  assets of the Company and the  subsidiaries  of the  Company,  taken as a
whole;  (y) a Third Party acquires more than 50% of the outstanding  Shares;  or
(z) the Company adopts and implements a plan of liquidation or share  repurchase
relating to more than 50% of the outstanding Shares or an extraordinary dividend
relating  to more than 50% of the assets of the  Company  and its  subsidiaries,
taken as a whole.

If the Company fails to promptly pay any amounts owed to Parent or the Purchaser
under the foregoing  provisions of the Merger  Agreement,  and Parent and/or the
Purchaser  sue the  Company for such  amounts and obtain a judgment  against the
Company,  the  Company  must also pay  Parent's  and the  Purchaser's  costs and
expenses  in  connection  with such  litigation.  However,  in any suit over the
reasonableness and/or documentation of reimbursed expenses, each party will bear
its own expenses.

Except as set forth above,  in the event that the  transactions  contemplated by
the Merger Agreement are not consummated,  neither the Company, on the one hand,
nor Parent and the  Purchaser,  on the other hand,  shall have any obligation to
pay any of the fees and expenses of the other.

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<PAGE>

In the event that the  transactions  contemplated  by the Merger  Agreement  are
consummated,  Parent  shall  pay all of the fees  and  expenses  of the  Company
incident to the negotiation,  preparation and execution of the Merger Agreement,
including the fees and expenses of counsel, accountants,  investment bankers and
other  advisors,  as well as the fees and  expenses  incurred  by Parent and the
Purchaser.

Amendment.

The Merger  Agreement may be amended or supplemented at any time before or after
its approval and  adoption by the  stockholders  of the Company by action of the
respective Boards of Directors of the Company, Parent and the Purchaser, without
action by the stockholders  thereof,  except that after approval and adoption of
the  Merger  Agreement  by the  Company's  stockholders,  no such  amendment  or
supplement  shall,  without consent of such  stockholders,  reduce the amount or
alter the form of the consideration that the holders of the capital stock of the
Company  shall be  entitled  to receive at the  Effective  Time  pursuant to the
Merger Agreement.

16. PURPOSE  AND  STRUCTURE  OF  THE OFFER AND THE MERGER; REASONS OF PARENT AND
     THE PURCHASER FOR THE OFFER AND THE MERGER

Purpose and Structure.

The  purpose of the Offer and the  Merger is for  Parent to  acquire  the entire
equity  interest  in the  Company.  The  purpose  of the Merger is for Parent to
acquire all the equity  interest in the  Company  not  acquired  pursuant to the
Offer. Upon  consummation of the Merger,  the Company will become a wholly-owned
subsidiary  of Parent.  The  acquisition  of the entire  equity  interest in the
Company has been  structured as a cash tender offer followed by a cash merger in
order to  provide a prompt  and  orderly  transfer  of  ownership  of the equity
interest  in  the  Company  held  by  stockholders  of  the  Company  from  such
stockholders to Parent and to provide the  stockholders of the Company with cash
for all their Shares.

Under the DGCL if,  following  consummation of the Offer,  the Purchaser owns at
least 90% of the Shares then  outstanding,  the Purchaser  will be able to cause
the Merger to occur without a vote of the Company's stockholders. In such event,
Parent,  the  Purchaser  and the Company have agreed to take all  necessary  and
appropriate action to cause the Merger to become effective as soon as reasonably
practicable  after  consummation of the Offer without a meeting of the Company's
stockholders.

In the Merger Agreement,  the Company has agreed promptly after the commencement
of the Offer to take all action  necessary  to convene a special  meeting of its
stockholders  for the  purpose of  considering  and taking  action on the Merger
Agreement  and  the  Merger  and  the  transactions  contemplated  thereby.  If,
following  consummation  of the Offer, a vote of the Company's  stockholders  is
required  under  the  DGCL  to  approve  the  Merger,  it  is  possible  that  a
significantly  longer period of time will be required to effect the Merger.  See
Section 18 of the Offer to Purchase ("Certain Conditions of the Offer").

17. PLANS  FOR  THE  COMPANY  AFTER THE OFFER AND THE MERGER; CERTAIN EFFECTS OF
     THE OFFER AND THE MERGER

Pursuant to the Merger Agreement,  promptly upon completion of the Offer, Parent
and the Purchaser  intend to effect the Merger in  accordance  with the terms of
the Merger  Agreement.  See  Section 15 of the Offer to  Purchase  ("The  Merger
Agreement").

Parent's management has begun, and intends to continue,  a review of the Company
and its assets,  corporate structure,  capitalization,  operations,  properties,
policies,  management and personnel to determine what changes,  if any, would be
desirable in order best to organize and integrate the  activities of the Company
and Parent.  Parent  expressly  reserves  the right to make any changes  that it
deems  necessary  or  appropriate  in light of its  review or in light of future
developments  or that would be desirable to permit Parent to manage the Company.
The Merger Agreement provides that, promptly after the purchase by the Purchaser
of at least a  majority  of the  outstanding  Shares,  Parent  has the  right to
designate such number of directors,  rounded up to the next whole number, on the
Company's  Board of  Directors as is equal to the product of the total number of
directors on the Company's  Board of Directors  (giving  effect to the directors
designated by Parent)  multiplied by the percentage that the number of Shares so
accepted for payment bears to the total number of Shares then  outstanding.  The
Merger Agreement provides that the directors of the Purchaser  immediately prior
to the Effective  Time will be the directors of the Surviving  Corporation,  and
that the officers of the Company immediately prior to the Effective Time will be
the officers of the Surviving Corporation from and after the Effective Time.

                                       22


<PAGE>

Except as disclosed in this Offer to Purchase,  neither Parent nor the Purchaser
has any  present  plans or  proposals  that  would  result  in an  extraordinary
corporate transaction, such as a merger, reorganization, liquidation, relocation
of  operations,  or sale or transfer of assets,  involving the Company or any of
its subsidiaries,  or any material changes in the Company's corporate structure,
business or composition of its management or personnel.

The Shares are currently traded on the Nasdaq National Market.  See Section 8 of
the  Offer to  Purchase  ("Price  Range of the  Shares;  Dividend  Policy of the
Company").  Following the consummation of the Merger,  the Shares will no longer
be included in the Nasdaq  National  Market and the  registration  of the Shares
under the Exchange Act will be terminated.  Accordingly,  after the Merger there
will be no publicly traded equity securities of the Company  outstanding and the
Company will no longer be required to file periodic reports with the Commission.
See Section 9 of the Offer to  Purchase  ("Effect of the Offer on the Market for
the Shares;  Nasdaq National Market Listing;  Exchange Act Registration;  Margin
Regulations"). It is expected that if Shares are not accepted for payment by the
Purchaser pursuant to the Offer and the Merger is not consummated, the Company's
current  management,  under the general  direction  of the Company  Board,  will
continue to manage the Company as an ongoing business.

18. CERTAIN CONDITIONS OF THE OFFER

The  Purchaser is not  required to accept for  payment,  purchase or pay for any
Shares  tendered  pursuant  to the Offer and may  terminate  the Offer as to any
Shares not then accepted for payment, or may delay the acceptance for payment of
or payment for Shares tendered, if (1) prior to the expiration date of the Offer
(A) the number of Shares validly  tendered and not withdrawn,  together with any
Shares then owned by the Purchaser,  shall not satisfy the Minimum Condition, or
(B) the  applicable  waiting  period under the HSR Act shall not have expired or
been terminated;  or (2) at any time after July 8, 1997, and prior to acceptance
for payment of or payment for Shares, any of the following conditions exist:

      (a) there shall be  instituted  or pending any action or proceeding by any
   government  or  governmental   authority  or  agency,  before  any  court  or
   governmental authority or agency, (i) challenging or seeking to make illegal,
   to delay or  otherwise  directly or  indirectly  to restrain or prohibit  the
   making of the Offer,  the acceptance for payment of or payment for some of or
   all the Shares by the  Purchaser  or the  consummation  by the  Purchaser  or
   Parent of the Merger,  or seeking to obtain material  damages relating to the
   transactions  contemplated  by the  Offer  or the  Merger,  (ii)  seeking  to
   restrain or prohibit  Parent's or the Purchaser's full rights of ownership or
   operation  (or that of Parent's  subsidiaries  or  affiliates)  of a material
   portion of the business or assets of the Company and its subsidiaries,  taken
   as a whole,  or of Parent and its  subsidiaries,  taken as a whole, or any of
   their respective affiliates or to compel Parent or any of its subsidiaries or
   affiliates to dispose of or hold separate a material  portion of the business
   or assets of the Company and its subsidiaries, taken as a whole, or of Parent
   and  its  subsidiaries,  taken  as  a  whole,  or  any  of  their  respective
   affiliates,  (iii) seeking to impose  material  limitations on the ability of
   Parent or any of its subsidiaries or affiliates  effectively to exercise full
   rights of ownership of the Shares, including,  without limitation,  the right
   to vote any Shares acquired or owned by Parent or any of its  subsidiaries or
   affiliates on all matters properly  presented to the Company's  stockholders,
   (iv) seeking to require  divestiture by Parent or any of its  subsidiaries or
   affiliates of any Shares, (v) prohibiting the financing of the Offer, or (vi)
   that otherwise would reasonably expected to have a material adverse effect on
   the Company and its subsidiaries, taken as a whole; or

      (b)  there  shall  have  been  any  action  taken  or any  statute,  rule,
   regulation,  judgment,  administrative  interpretation,  injunction, order or
   decree proposed, enacted, enforced,  promulgated, issued or deemed applicable
   to the Offer,  the acceptance for payment of or payment for any Shares or the
   Merger, by any court,  government or governmental  authority or agency (other
   than the  application of the waiting period  provisions of the HSR Act to the
   Offer,  the  acceptance  for  payment  of or  payment  for any  Shares or the
   Merger), that has, directly or indirectly,  resulted, or is reasonably likely
   to, directly or indirectly,  result in any of the consequences referred to in
   clauses (i) through (v) of paragraph (a) above; or

      (c) any change shall have occurred or been  threatened (or any development
   shall have occurred or been threatened involving a prospective change) in the
   business,   assets,   liabilities,   financial   condition,   capitalization,
   operations or results of operations of the Company or any of its subsidiaries
   or  affiliates  that  have  had or would  reasonably  be  expected  to have a
   material adverse effect on the Company and its

                                       23


<PAGE>

   subsidiaries, taken as a whole, or Parent and the Purchaser shall have become
   aware of any  facts  that  have had or are  reasonably  likely to have such a
   material adverse effect; or

      (d) there shall have occurred (i) any general suspension of trading in, or
   limitation on prices for securities on any national securities exchange or in
   the  over-the-counter  market,  (ii) any  decline  in  either  the Dow  Jones
   Industrial  Average  or the  Standard  and  Poor's  Index  of 500  Industrial
   Companies by an amount in excess of 15%,  measured  from July 8, 1997,  (iii)
   the  declaration  of any banking  moratorium or any suspension of payments in
   respect of banks or any material limitation (whether or not mandatory) on the
   extension of credit by lending  institutions  in the United States,  (iv) the
   commencement  of  a  war,   material  armed  hostilities  or  other  material
   international  or national  calamity  directly or  indirectly  involving  the
   United States or having a significant  adverse  effect on the  functioning of
   the financial  markets in the United States, or (v) in the case of any of the
   foregoing  existing  at the time of  execution  of the  Merger  Agreement,  a
   material acceleration or worsening thereof; or

      (e) it shall have been publicly disclosed or Parent or the Purchaser shall
   have  otherwise  learned  that  (i)  any  Third  Party  shall  have  acquired
   beneficial ownership of more than 10% of any class or series of capital stock
   of the Company (including the Shares),  through the acquisition of stock, the
   formation  of a group or  otherwise,  or shall have been  granted any option,
   right or warrant,  conditional or otherwise,  to acquire beneficial ownership
   of more  than 10% of any  class or series  of  capital  stock of the  Company
   (including  the  Shares)  other  than  acquisitions  for bona fide  arbitrage
   purposes  only and other than as  disclosed  in a Schedule 13D or 13G on file
   with the Commission prior to the date of the Merger Agreement, (ii) any Third
   Party  that,  prior to the date of the  Merger  Agreement,  had filed  such a
   Schedule  with the  Commission  shall have acquired  beneficial  ownership of
   additional  shares of any class or series  of  capital  stock of the  Company
   (including the Shares),  through the acquisition of stock, the formation of a
   group or otherwise,  constituting  an additional 5% or more of any such class
   or  series,  or shall  have  been  granted  any  option,  right  or  warrant,
   conditional  or  otherwise,  to acquire  beneficial  ownership of  additional
   shares of any class or series of capital stock of the Company  (including the
   Shares)  constituting  and additional 5% or more of any such class or series,
   or (iii) any Third Party shall have entered into a definitive agreement or an
   agreement  in  principle  with  respect to a merger,  consolidation  or other
   business combination with the Company; or

      (f) the  Company  shall have  breached  or failed to perform in any of its
   covenants  or  agreements  under  the  Merger   Agreement,   or  any  of  the
   representations  and  warranties  of the  Company  set  forth  in the  Merger
   Agreement  shall  not have  been  true  when  made,  or at any time  prior to
   consummation of the Offer,  as if made at and as of such time,  provided that
   representations and warranties made as of a particular date need be true only
   as of such date (for the purpose of this paragraph (f),  representations  and
   warranties  of the Company  that are  expressly  qualified  by a  materiality
   qualification   shall  be  true  and  correct  subject  to  such  materiality
   qualification, and all other representations and warranties shall be true and
   correct in all material respects); and in any such case, such breach, failure
   or  untruth  would  reasonably  be  expected  to  materially   influence  the
   investment  decision of a reasonable  purchaser  of the all or a  substantial
   portion of the Company's outstanding securities; or

      (g)  all  consents,  approvals,  licenses,  certificates,  accreditations,
   authorizations  or  orders  of any  governmental  commission,  board or other
   regulatory  body  required in  connection  with the  execution,  delivery and
   performance of the Merger Agreement and for the Surviving Corporation and its
   subsidiaries to conduct business in substantially the manner conducted by the
   Company and its  subsidiaries as of the date of the Merger  Agreement,  shall
   not have been  obtained,  except for any of the same,  the  failure to obtain
   which would not  reasonably be expected to have a material  adverse effect on
   the Company and its  subsidiaries,  taken as a whole,  after giving effect to
   the transactions contemplated by the Merger Agreement; or

      (h) the Merger Agreement shall have been terminated in accordance with its
   terms or amended in accordance with its terms to provide for such termination
   or amendment of the Offer; or

      (i) all members of the Board of Directors  of the Company,  other than two
   Continuing  Directors,  shall not have  resigned,  effective upon and subject
   only to the acceptance for payment by the Purchaser of, and

                                       24


<PAGE>

   deposit  by the  Purchaser  with  the  depositary  for  the  Offer  of  funds
   sufficient to make payment for, a majority of the outstanding Shares pursuant
   to the  Offer,  or the  Board of  Directors  of the  Company  shall  not have
   elected,  effective upon and subject only to such acceptance and deposit,  at
   least three  individuals  designated  by Parent as  directors of the Company,
   effective upon such consummation,

which, in the sole judgment of the Purchaser in any such case, and regardless of
the  circumstances  giving rise to any such  condition,  makes it inadvisable to
proceed with such acceptance for payment or payment.

The  foregoing  conditions  are for the sole benefit of the Purchaser and may be
asserted  or  waived by the  Purchaser  in whole or in part at any time and from
time to time in its sole discretion. The failure by the Purchaser at any time to
exercise  any of the  foregoing  rights shall not be deemed a waiver of any such
right and each such right  shall be deemed an ongoing  right and may be asserted
at any time and from time to time. The failure by Parent or the Purchaser at any
time to exercise any of the foregoing  rights will not be deemed a waiver of any
such  right,  and each such right  will be deemed an  ongoing  right that may be
asserted at any time and from time to time.

19. CERTAIN LEGAL MATTERS

General.

Except as described in this section,  based on its review of publicly  available
filings  of the  Company  with  the  Commission  and  other  publicly  available
information  regarding the Company, the Purchaser is not aware of any license or
regulatory permit that appears to be material to the business of the Company and
its  subsidiaries,  taken as a whole,  that might be  adversely  affected by the
Purchaser's  acquisition of Shares (and/or the indirect acquisition of the stock
of the  Company's  subsidiaries)  as  contemplated  herein or of any approval or
other  action by or with any  domestic,  foreign,  or  international  government
authority or  administrative or regulatory agency that would be required for the
acquisition or ownership of the Shares  (and/or the indirect  acquisition of the
stock of the Company's subsidiaries) by the Purchaser.  Should any such approval
or other action be required,  the  Purchaser  currently  contemplates  that such
approval or other action will be sought,  except as described below under "State
Takeover Laws".  While, except as otherwise expressly described in this section,
the Purchaser  does not presently  intend to delay the acceptance for payment of
or payment for Shares tendered  pursuant to the Offer pending the outcome of any
such matter,  there can be no assurance  that any such approval or other action,
if needed,  would be obtained without substantial  conditions or that failure to
obtain  any such  approval  or other  action  might not  result in  consequences
adverse  to the  Company's  business  or that  certain  parts  of the  Company's
business might not have to be divested of if such approvals were not obtained or
such other  actions  were not taken,  any of which could cause the  Purchaser to
decline to accept for payment or pay for any Shares  tendered.  The  Purchaser's
obligations to accept for payment or pay for the Shares tendered pursuant to the
Offer is subject to the certain  conditions  set forth in this Offer,  including
the  conditions set forth above in this paragraph and with respect to litigation
and governmental  action as contemplated  herein. See Section 18 of the Offer to
Purchase ("Certain Conditions of the Offer").

State Takeover Laws.

The Company is incorporated under the laws of the State of Delaware. In general,
Section  203 of the DGCL  prevents an  "interested  stockholder"  (generally,  a
person  who owns or has the  right  to  acquire  15% or more of a  corporation's
outstanding voting stock, or an affiliate or associate thereof) from engaging in
a  "business   combination"  (defined  to  include  mergers  and  certain  other
transactions) with a Delaware  corporation for a period of three years following
the date such  person  became an  interested  stockholder  unless,  among  other
things,  prior to such date the board of directors of the  corporation  approved
either the  business  combination  or the  transaction  in which the  interested
stockholder  became  an  interested  stockholder.  Since the  Company  Board has
approved  the  Offer  and  the  Merger,  Section  203 is  inapplicable  to  this
transaction.

A number  of other  states  have  adopted  laws and  regulations  applicable  to
attempts to acquire securities of corporations  which are incorporated,  or have
substantial  assets,  stockholders,  principal  executive  offices or  principal
places of business,  or whose business  operations  otherwise  have  substantial
economic  effects,  in such states. In Edgar V. Mite Corp., the Supreme Court of
the United States  invalidated on  constitutional  grounds the Illinois Business
Takeover Statute,  which, as a matter of state securities law, made takeovers of
corporations meeting certain  requirements more difficult.  In 1987, however, in
CTS Corp. v. Dynamics Corp. of America, the Supreme Court held that the State of
Indiana may, as a matter of corporate  law and, in  particular,  with respect to
those aspects of corporate law concerning corporate governance, constitutionally
disqualify  a  potential  acquiror  from  voting  on  the  affairs  of a  target
corporation without the prior approval of

                                       25


<PAGE>

the  remaining  stockholders.  The state law before the Supreme Court was by its
terms  applicable  only  to  corporations  that  had  a  substantial  number  of
stockholders in the state and were incorporated there.

The  Purchaser has not currently  complied  with any state  takeover  statute or
regulation  (except  pursuant to Minnesota  Statutes Chapter 80B). The Purchaser
reserves the right to challenge the  applicability  or validity of any state law
purportedly  applicable  to the Offer or the Merger and nothing in this Offer to
Purchase  or any  action  taken in  connection  with the Offer or the  Merger is
intended as a waiver of such right.  If it is asserted  that any state  takeover
statute is applicable to the Offer or the Merger and an  appropriate  court does
not determine that it is  inapplicable or invalid as applied to the Offer or the
Merger, the Purchaser might be required to file certain  information with, or to
receive approvals from, the relevant state authorities,  and the Purchaser might
be unable to accept  for  payment  or pay for Shares  tendered  pursuant  to the
Offer, or be delayed in consummating the Offer or the Merger.  See Section 18 of
the Offer to Purchase ("Certain Conditions of the Offer").

Antitrust.

The Offer and the Merger are subject to the HSR Act, which provides that certain
acquisition  transactions may not be consummated unless certain  information has
been  furnished  to the  Antitrust  Division of the  Department  of Justice (the
"Antitrust  Division") and the Federal Trade  Commission (the "FTC") and certain
waiting period requirements have been satisfied.

Parent and the Company expect to file soon their  Notification  and Report Forms
with  respect to the Offer under the HSR Act.  The waiting  period under the HSR
Act with respect to the Offer will expire at 11:59 p.m.,  New York City time, on
the fifteenth day after the date Parent's form is filed unless early termination
of the waiting period is granted. However, the Antitrust Division or the FTC may
extend the waiting  period by requesting  additional  information or documentary
material  from Parent or the  Company.  If such a request is made,  such waiting
period  will expire at 11:59  p.m.,  New York City time,  on the tenth day after
substantial  compliance by Parent with such  request.  Only one extension of the
waiting period pursuant to a request for additional information is authorized by
the HSR Act. Thereafter, such waiting period may be extended only by court order
or with the  consent  of  Parent.  In  practice,  complying  with a request  for
additional  information  or material can take a  significant  amount of time. In
addition,  if the  Antitrust  Division or the FTC raises  substantive  issues in
connection  with a  proposed  transaction,  the  parties  frequently  engage  in
negotiations with the relevant  governmental agency concerning possible means of
addressing  those issues and may agree to delay  consummation of the transaction
while such  negotiations  continue.  The  Purchaser  will not accept for payment
Shares  tendered  pursuant  to the Offer  unless  and until the  waiting  period
requirements  imposed  by the  HSR Act  with  respect  to the  Offer  have  been
satisfied.  See Section 18 of the Offer to Purchase ("Certain  Conditions of the
Offer").

As discussed below, the HSR Act requirements with respect to the Merger will not
apply if  certain  conditions  are met.  In  particular,  the  Merger may not be
consummated  until thirty days after receipt by the  Antitrust  Division and the
FTC of the  Notification  and Report Forms of both Parent and the Company unless
the Purchaser  acquires 50% or more of the  outstanding  Shares  pursuant to the
Offer or the thirty-day period is earlier  terminated by the Antitrust  Division
and the FTC. Within such thirty-day  period,  the Antitrust  Division or the FTC
may request additional  information or documentary  materials from Parent and/or
the  Company.  The Merger may not be  consummated  until  twenty days after such
requests  are  substantially  complied  with by  both  Parent  and the  Company.
Thereafter,  the waiting periods may be extended only by court order or with the
consent of Parent and the Company.

The FTC and the Antitrust Division frequently  scrutinize the legality under the
antitrust laws of  transactions  such as the  Purchaser's  acquisition of Shares
pursuant  to the  Offer  and  the  Merger.  At any  time  before  or  after  the
Purchaser's  acquisition of Shares, the Antitrust Division or the FTC could take
such action under the antitrust  laws as it deems  necessary or desirable in the
public interest,  including seeking to enjoin the acquisition of Shares pursuant
to the Offer or  otherwise  or seeking  divestiture  of Shares  acquired  by the
Purchaser or divestiture of  substantial  assets of Parent or its  subsidiaries.
Private parties, as well as state governments, may also bring legal action under
the antitrust  laws under certain  circumstances.  Based upon an  examination of
publicly  available  information  relating to the businesses in which Parent and
the Company are engaged,  Parent and the Purchaser  believe that the acquisition
of Shares by the Purchaser  will not violate the antitrust  laws.  Nevertheless,
there can be no assurance that a challenge to the Offer or other  acquisition of
Shares by the  Purchaser  on  antitrust  grounds  will not be made or, if such a
challenge  is made,  of the  result.  See  Section  18 of the Offer to  Purchase
("Certain  Conditions  of the  Offer")  for  certain  conditions  to the  Offer,
including  conditions  with  respect  to  litigation  and  certain  governmental
actions.

                                       26


<PAGE>

Foreign Antitrust Approvals

The  Purchaser  has been  advised  that certain  filing  obligations  and review
procedures  exist in certain  other  jurisdictions  in which the Company and its
subsidiaries own property or conduct  business,  including  Germany and possibly
others.

Under the German Act Against  Restraints  of  Competition,  certain  acquisition
transactions  may not be consummated  unless certain  information has been filed
with the German  Federal  Cartel  Office (the  "Cartel  Office")  and the Cartel
Office  has  either  issued  a  clearance   letter  or  certain  waiting  period
requirements  have  been  satisfied.  Purchaser  expects  to  file a  Pre-Merger
Notification  with the Cartel Office as soon as possible after the  commencement
of the Offer and the normal  waiting  period will expire one month from the date
of such  filing,  or may be  extended  by the Cartel  Office for a total of four
months after the filing.  The Purchaser  intends to request early termination of
the waiting  period,  but there can be no  assurance  that such  request will be
granted.  If the waiting period has not expired or been terminated  prior to the
satisfaction or waiver (if  permissible)  of all other  conditions to the Offer,
the  Purchaser  may,  at its option,  elect to  purchase  and pay for the Shares
tendered   nothwithstanding  the  pendency  of  the  waiting  period,   postpone
acceptance for payment and payment for the Shares until such time as the waiting
period has expired or permit the Offer the expire without acceptance for payment
of any Shares. At the present time, the Purchaser has not made any determination
as to which of the  alternatives  it would  exercise if such a situation were to
arise.

Should Parent or the  Purchaser  become aware of other filings in or consents of
foreign  jurisdictions  that are necessitated by the Merger  Agreement,  it will
review  such  requirements  at  the  time  and  take  such  action  as it  deems
appropriate.

Federal Reserve Board Regulations.

Regulations G, U and X (the "Margin  Regulations")  of the Federal Reserve Board
restrict  the  extension or  maintenance  of credit for the purpose of buying or
carrying margin stock,  including the Shares,  if the credit is secured directly
or  indirectly  by margin  stock.  Such  secured  credit may not be  extended or
maintained  in an amount that exceeds the maximum  loan value of the  collateral
securing  the credit  (currently  50% of the current  market value of the margin
stock securing the credit).  The acquisition of the Shares pursuant to the Offer
will be structured so as to be in compliance with the Margin Regulations.

20. FEES AND EXPENSES

JP Morgan is acting as Dealer Manager in connection with the Offer and has acted
as  financial  adviser  to  Parent  and the  Purchaser  in  connection  with the
acquisition  of the  Company.  Parent  has  agreed  to pay JP  Morgan,  for  its
services,  a fee of  $1,000,000  upon  consummation  of the Offer for  acting as
Dealer Manager of the Offer and for its financial advisory services.  Parent has
also agreed to reimburse JP Morgan for its  reasonable  out-of-pocket  expenses,
including the fees and  disbursements  of its legal counsel,  in connection with
the Offer, and to indemnify it against certain liabilities and liabilities under
the federal  securities  laws.  In  addition,  WCA  Management  Corporation,  an
affiliate  of  WCAS,  will be paid a fee of $1.5  million  for its  services  in
connection with the Merger.

The  Purchaser  and Parent  have  retained  Georgeson  & Company  Inc. to be the
Information  Agent and The Bank of New York to be the  Depositary  in connection
with the Offer.  The  Information  Agent may contact  holders of Shares by mail,
telephone,  telecopy,  telegraph and personal  interview and may request  banks,
brokers, dealers and other nominee stockholders to forward materials relating to
the Offer to beneficial owners.

As  compensation  for acting as Information  Agent in connection with the Offer,
Georgeson  &  Company  Inc.  will  be  paid a fee of  $7,500  and  will  also be
reimbursed  for  certain  expenses  and  may  be  indemnified   against  certain
liabilities  and  expenses  in  connection  with the  Offer,  including  certain
liabilities  under the  federal  securities  laws.  The  Purchaser  will pay the
Depositary reasonable and customary  compensation for its services in connection
with  the  Offer,  plus  reimbursement  for  out-of-pocket  expenses,  and  will
indemnify the Depositary against certain  liabilities and expenses in connection
therewith, including certain liabilities under federal securities laws. Brokers,
dealers,  commercial  banks  and  trust  companies  will  be  reimbursed  by the
Purchaser  for  customary  handling  and  mailing  expenses  incurred by them in
forwarding material to their customers.

The  Purchaser  will not pay any fees or  commissions  to any broker,  dealer or
other person for soliciting  tenders of Shares pursuant to the Offer,  except as
set forth above.

                                       27


<PAGE>

21. MISCELLANEOUS

The Offer is not being made to (nor will  tenders be accepted  from or on behalf
of)  holders of Shares in any  jurisdiction  in which the making of the Offer or
the acceptance thereof would not be in compliance with the securities,  blue sky
or other  laws of such  jurisdiction.  The  Purchaser  may,  in its  discretion,
however,  take  such  action as it may deem  necessary  to make the Offer in any
jurisdiction and extend the Offer to holders of Shares in any such jurisdiction.
In any  jurisdiction  where the  securities,  blue sky or other laws require the
Offer to be made by a licensed broker or dealer, the Offer shall be deemed to be
made on behalf of the Purchaser by JP Morgan or one or more  registered  brokers
or dealers licensed under the laws of such jurisdiction.

No  person  has  been  authorized  to  give  any  information  or  to  make  any
representation  on behalf of the Purchaser not contained herein or in the Letter
of Transmittal  and, if given or made, such information or  representation  must
not be relied upon as having been authorized. Neither the delivery of this Offer
to  Purchase  nor  any  purchase   pursuant  to  the  Offer  shall,   under  any
circumstances,  create  any  implication  that  there  has been no change in the
affairs of the Purchaser or the Company  since the date as of which  information
is furnished or the date of this Offer to Purchase.

Parent and the Purchaser have filed with the Commission a Tender Offer Statement
on Schedule  14D-1,  together  with  exhibits,  pursuant to Rule 14d-3 under the
Exchange Act, in connection with the Offer.  In addition,  the Company has filed
with the  Commission a  Solicitation/Recommendation  Statement  Schedule  14D-9,
together with exhibits,  pursuant to Rule 14d-9 under the Exchange Act,  setting
forth the recommendations of the Company Board with respect to the Offer and the
reasons for such  recommendations  and  furnishing  certain  additional  related
information.  The Company's  Schedule 14D-9 is being distributed to stockholders
of the Company with this Offer to Purchase. The Schedule 14D-1 of Parent and the
Purchaser and the Schedule  14D-9 of the Company,  and any  amendments  thereto,
including  exhibits,  may be  inspected  and  copies  may be  obtained  from the
Commission and Nasdaq  National  Market in the manner set forth under Section 10
of the Offer to Purchase ("Certain Information  Concerning the Company") (except
that they will not be available at the regional offices of the Commission).

                            CDSI HOLDING CORPORATION
                             CDSI ACQUISITION CORP.

                                 JULY 15, 1997

                                       28


<PAGE>

                                                                     SCHEDULE I

                        DIRECTORS AND EXECUTIVE OFFICERS
               OF PARENT AND THE PURCHASER; GENERAL PARTNERS OF
            VII PARTNERS; AND MANAGING MEMBERS OF CP III ASSOCIATES

The  following  table  sets  forth  the name,  business  or  residence  address,
principal  occupation or employment at the present time and during the last five
years,   and  the  name  and  business  address  of  any  corporation  or  other
organization  in which such  employment  is conducted  or was  conducted of each
director and  executive  officer of Parent and the Purchaser and of each general
partner or managing  member of VII  Partners  and CP III  Associates.  Each such
person is a citizen  of the United  States.  The  business  address of each such
person is 320 Park Avenue, Suite 2500, New York, New York 10022.

<TABLE>
<CAPTION>

                              PRINCIPAL OCCUPATION OR
                              EMPLOYMENT AND FIVE-YEAR
NAME AND BUSINESS ADDRESS     EMPLOYMENT HISTORY
- ---------------------------   ------------------------------------------------------------
<S>                           <C>

Patrick J. Welsh  .........   Chairman and  director of each of Parent and the  Purchaser.
                              General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Thomas E. McInerney  ......   President and director of each of Parent and the  Purchaser.
                              General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Rudolph E. Rupert .........   Vice  President,  Secretary and  Treasurer,  and director of
                              each of Parent and the  Purchaser.  Vice  President of WCAS.
                              Associate,  General  Atlantic  Partners,  L.L.P.,  a private
                              investment   group  focused  on  software  and   information
                              technology, from September, 1994 to March, 1997. Consultant,
                              Onex  Investment  Corp.,  a  public  holding  company,  from
                              February,  1993 to  September  1994  and  Associate,  Lazard
                              Freres, an investment bank, from January, 1987, to May 1992.

Russell L. Carson .........   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Bruce K. Anderson .........   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Richard H. Stowe  .........   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Andrew M. Paul ............   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

Laura M. VanBuren .........   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates.

James B. Hoover   .........   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including  VII  Partners  and  CP  III   Associates,   since
                              November,  1992. General Partner,  Robertson Stephens & Co.,
                              an investment bank, from February, 1984 to November, 1992.

Robert A. Minicucci  ......   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III Associates,  since August,
                              1993.  Senior Vice  President and Chief  Financial  Officer,
                              First  Data  Corporation,  a  provider  of  information  and
                              transaction   processing  for  credit  card  issuers,   from
                              February, 1992 to August, 1993.
</TABLE>

                                       29


<PAGE>







<TABLE>
<CAPTION>

                              PRINCIPAL OCCUPATION OR
                              EMPLOYMENT AND FIVE-YEAR
NAME AND BUSINESS ADDRESS     EMPLOYMENT HISTORY
- ---------------------------   -----------------------------------------------------------------------------
<S>                           <C>

Anthony J. deNicola  ......   General  partner  or  managing  member  of the sole  general
                              partner of several  investment  funds  affiliated with WCAS,
                              including VII Partners and CP III  Associates,  since April,
                              1994. Associate,  William Blair & Associates,  an investment
                              firm, from September, 1990 to April, 1994.

Paul B. Queally   .........   General  partner of VII Partners  since  February,  1996 and
                              managing member of CP III Associates. General Partner at The
                              Sprout Group,  an investment  partnership,  from  September,
                              1986 to February, 1996.
</TABLE>

                                       30


<PAGE>






                                                                        ANNEX A

                RIGHTS OF DISSENTING STOCKHOLDERS UNDER THE DGCL

IN  VIEW  OF THE COMPLEXITY OF THESE PROVISIONS OF THE DGCL, ANY STOCKHOLDER WHO
IS  CONSIDERING  EXERCISING  DISSENTERS'  RIGHTS SHOULD CONSULT HIS OR HER LEGAL

ADVISOR.

STATUTORY  APPRAISAL  PROCEDURES.  The  following  is a  brief  summary  of  the
statutory  procedures to be followed by a holder of Shares at the Effective Time
who does not wish to accept the per Share  cash  consideration  pursuant  to the
Merger (a  "Remaining  Stockholder")  in order to  dissent  from the  Merger and
perfect  appraisal rights under Delaware law. THIS SUMMARY IS NOT INTENDED TO BE
COMPLETE  AND IS  QUALIFIED  IN ITS  ENTIRETY BY REFERENCE TO SECTION 262 OF THE
DGCL, THE TEXT OF WHICH IS SET FORTH IN THIS ANNEX B. ANY REMAINING  STOCKHOLDER
CONSIDERING  DEMANDING APPRAISAL IS ADVISED TO CONSULT LEGAL COUNSEL.  APPRAISAL
RIGHTS WILL NOT BE AVAILABLE  UNLESS AND UNTIL THE MERGER (OR A SIMILAR BUSINESS
COMBINATION) IS CONSUMMATED.

Remaining  stockholders of record who desire to exercise their appraisal  rights
must  fully  satisfy  all of the  following  conditions.  A written  demand  for
appraisal of Shares must be delivered to the Secretary of the Company (x) before
the taking of the vote on the approval  and adoption of the Merger  Agreement if
the Merger is not being  effected as a "short-form"  merger  pursuant to Section
253 of the DGCL but, rather, is being consummated  following approval thereof at
a meeting of the Company's  stockholders (a "long-form" merger) or (y) within 20
days  after  the date  that the  Surviving  Corporation  mails to the  Remaining
Stockholders  a notice (the "Notice of Merger") to the effect that the Merger is
effective and that appraisal rights are available (and includes in such notice a
copy of Section 262 of the DGCL and any other  information  required thereby) if
the Merger is being effected as a "short-form"  merger without a vote or meeting
of the  Company's  stockholders.  If the  Merger is  effected  as a  "long-form"
merger,  this written  demand for appraisal of Shares must be in addition to and
separate  from any proxy or vote  abstaining  from or against the  approval  and
adoption of the Merger  Agreement,  and neither voting against,  abstaining from
voting, nor failing to vote on the Merger Agreement will constitute a demand for
appraisal  within  the  meaning  of  Section  262 of the DGCL.  In the case of a
"long-form"  merger,  any  stockholder  seeking  appraisal  rights must hold the
Shares for which  appraisal  is sought on the date of the making of the  demand,
continuously  hold such Shares through the Effective Time, and otherwise  comply
with the provisions of Section 262 of the DGCL.

In the case of both a  "short-form"  and a  "long-form"  merger,  a  demand  for
appraisal  must be  executed  by or for the  stockholder  of  record,  fully and
correctly,  as such  stockholder's  name appears on the stock  certificates.  If
Shares  are owned of  record  in a  fiduciary  capacity,  such as by a  trustee,
guardian or custodian,  such demand must be executed by the fiduciary. If Shares
are owned of record by more than one person, as in a joint tenancy or tenancy in
common,  such demand must be executed by all joint owners.  An authorized agent,
including  an agent for two or more joint  owners,  may  execute  the demand for
appraisal  for a  stockholder  of record;  however,  the agent must identify the
record owner and expressly  disclose the fact that in exercising the demand,  he
or she is acting as agent for the record owner.

A record owner, such as a broker,  who holds Shares as a nominee for others, may
exercise  appraisal  rights with respect to the Shares held for all or less than
all beneficial  owners of Shares as to which the holder is the record owner.  In
such case the written demand must set forth the number of Shares covered by such
demand.  Where the number of Shares is not expressly stated,  the demand will be
presumed  to cover all  Shares  outstanding  in the name of such  record  owner.
Beneficial owners who are not record owners and who intend to exercise appraisal
rights  should  instruct the record owner to comply  strictly with the statutory
requirements with respect to the exercise of appraisal rights before the date of
any meeting of  stockholders  of the Company called to approve the Merger in the
case of a  "long-form"  merger and within 20 days  following  the mailing of the
Notice of Merger in the case of a "short-form" merger.

Remaining  Stockholders  who elect to  exercise  appraisal  rights  must mail or
deliver their written demands to:  Secretary,  Control Data Systems,  Inc., 4201
Lexington  Avenue North,  Arden Hills,  Minnesota  55126. The written demand for
appraisal should specify the stockholder's name and mailing address,  the number
of Shares covered by the demand and that the  stockholder  is thereby  demanding
appraisal of such Shares. In the case of a "long-form" merger, the Company must,
within ten days after the Effective  Time,  provide notice of the Effective Time
to all  stockholders who have complied with Section 262 of the DGCL and have not
voted for approval and adoption of the Merger Agreement.

                                      A-1


<PAGE>






In the case of a "long-form" merger, Remaining Stockholders electing to exercise
their  appraisal  rights  under  Section 262 must not vote for the  approval and
adoption of the Merger Agreement or consent thereto in writing.  Voting in favor
of the approval and adoption of the Merger  Agreement,  or delivering a proxy in
connection with the stockholders  meeting called to approve the Merger Agreement
(unless the proxy votes  against,  or expressly  abstains  from the vote on, the
approval and adoption of the Merger Agreement),  will constitute a waiver of the
stockholder's  right of  appraisal  and will  nullify  any  written  demand  for
appraisal submitted by the stockholder.

Regardless  of  whether  the Merger is  effected  as a  "long-form"  merger or a
"short-form"  merger,  within  120 days  after the  Effective  Time,  either the
Company or any  stockholder  who has complied  with the required  conditions  of
Section  262 and who is  otherwise  entitled  to  appraisal  rights  may  file a
petition in the Delaware Court of Chancery demanding a determination of the fair
value  of the  Shares  of the  dissenting  stockholders.  If a  petition  for an
appraisal is timely filed, after a hearing on such petition,  the Delaware Court
of Chancery will determine which  stockholders  are entitled to appraisal rights
and thereafter will appraise the Shares owned by such stockholders,  determining
the fair value of such Shares,  exclusive  of any element of value  arising from
the  accomplishment  or expectation of the Merger,  together with a fair rate of
interest to be paid, if any, upon the amount determined to be the fair value.

The cost of the appraisal  proceeding may be determined by the Delaware Court of
Chancery  and taxed upon the parties as the  Delaware  Court of  Chancery  deems
equitable in the  circumstances.  Upon application of a dissenting  stockholder,
the  Delaware  Court of Chancery may order that all or a portion of the expenses
incurred  by  any  dissenting  stockholder  in  connection  with  the  appraisal
proceeding,  including,  without limitation,  reasonable attorneys' fees and the
fees and  expenses  of  experts,  be charged  pro rata  against the value of all
Shares  entitled  to  appraisal.   In  the  absence  of  such  determination  or
assessment, each party bears its own expenses.

Any Remaining  Stockholder  who has duly demanded  appraisal in compliance  with
Section 262 of the DGCL will not, after the Effective  Time, be entitled to vote
for any  purpose  the  Shares  subject to such  demand or to receive  payment of
dividends or other  distributions on such Shares,  except for dividends or other
distributions payable to stockholders of record at a date prior to the Effective
Time.

At any time within 60 days after the Effective Time, any former holder of Shares
shall have the right to withdraw his or her demand for  appraisal  and to accept
the per Share  cash  consideration  pursuant  to the  Merger,  without  interest
thereon.  After this  period,  such  holder may  withdraw  his or her demand for
appraisal only with the consent of the Surviving Corporation. If no petition for
appraisal is filed with the Delaware Court of Chancery within 120 days after the
Effective  Time,   stockholders'   rights  to  appraisal  shall  cease  and  all
stockholders  shall be  entitled  to receive  the per Share  cash  consideration
pursuant to the Merger, without interest thereon.

Failure to take any required step in  connection  with the exercise of appraisal
rights may result in the termination or waiver of such rights.

APPRAISAL  RIGHTS CANNOT BE EXERCISED AT THIS TIME.  THE  INFORMATION  SET FORTH
ABOVE IS FOR INFORMATIONAL  PURPOSES ONLY WITH RESPECT TO ALTERNATIVES AVAILABLE
TO  STOCKHOLDERS  IF  THE  MERGER  (OR  ANY  SIMILAR  BUSINESS  COMBINATION)  IS
CONSUMMATED. STOCKHOLDERS WHO WILL BE ENTITLED TO APPRAISAL RIGHTS IN CONNECTION
WITH THE MERGER WILL RECEIVE ADDITIONAL  INFORMATION CONCERNING APPRAISAL RIGHTS
AND  THE  PROCEDURES  TO  BE  FOLLOWED  IN  CONNECTION   THEREWITH  BEFORE  SUCH
STOCKHOLDERS  HAVE TO TAKE ANY ACTION RELATING  THERETO.  STOCKHOLDERS  WHO SELL
SHARES IN THE OFFER WILL NOT BE  ENTITLED  TO  EXERCISE  APPRAISAL  RIGHTS  WITH
RESPECT THERETO BUT, RATHER, WILL RECEIVE THE PRICE PAID IN THE OFFER THEREFOR.

                                      A-2


<PAGE>






                            GENERAL CORPORATION LAW
                            OF THE STATE OF DELAWARE

262. APPRAISAL RIGHTS.

(a) Any  stockholder of a corporation of this State who holds shares of stock on
the date of the making of a demand  pursuant to  subsection  (d) of this section
with  respect to such shares,  who  continuously  holds such shares  through the
effective date of the merger or consolidation,  who has otherwise  complied with
subsection  (d) of this section and who has neither voted in favor of the merger
or  consolidation  nor consented  thereto in writing  pursuant to Section 228 of
this title  shall be entitled  to an  appraisal  by the Court of Chancery of the
fair  value  of his  shares  of  stock  under  the  circumstances  described  in
subsections  (b) and (c) of this  section.  As used in this  section,  the  word
"stockholder"  means a holder of record of stock in a stock corporation and also
a member of record of a nonstock corporation; the words "stock" and "share" mean
and  include  what is  ordinarily  meant by those words and also  membership  or
membership  interest  of a  member  of a  nonstock  corporation;  and the  words
"depository  receipt" mean a receipt or other instrument  issued by a depository
representing an interest in one or more shares, or fractions thereof,  solely of
stock of a corporation, which stock is deposited with the depository.

(b) Appraisal rights shall be available for the shares of any class or series of
stock of a constituent  corporation in a merger or  consolidation to be effected
pursuant to Section 251 (other than a merger effected pursuant to subsection (g)
of Section 251, 252, 254, 257, 258, 263 or 264) of this title:

      (1) Provided,  however,  that no appraisal rights under this section shall
   be available for the shares of any class or series of stock,  which stock, or
   depository receipts in respect thereof, at the record date fixed to determine
   the stockholders  entitled to receive notice of and to vote at the meeting of
   stockholders  to act upon the  agreement  of  merger or  consolidation,  were
   either  (i) listed on a  national  securities  exchange  or  designated  as a
   national  market system  security on an interdealer  quotation  system by the
   National  Association of Securities  Dealers,  Inc. or (ii) held of record by
   more than 2,000 holders;  and further provided that no appraisal rights shall
   be available for any shares of stock of the constituent corporation surviving
   a merger if the  merger  did not  require  for its  approval  the vote of the
   holders of the surviving corporation as provided in subsection (f) of Section
   251 of this title.

      (2)  Notwithstanding  paragraph (1) of this  subsection,  appraisal rights
   under this section  shall be available  for the shares of any class or series
   of stock of a constituent  corporation if the holders thereof are required by
   the terms of an  agreement  of merger or  consolidation  pursuant to Sections
   251,  252,  254, 257, 258, 263 and 264 of this title to accept for such stock
   anything except:

         a.  Shares of stock of the corporation surviving or resulting from such
      merger or consolidation, or depository receipts in respect thereof;

         b. Shares of stock of any other corporation,  or depository receipts in
      respect  thereof,  which  shares of stock or  depository  receipts  at the
      effective date of the merger or  consolidation  will be either listed on a
      national  securities  exchange or designated  as a national  market system
      security on an interdealer quotation system by the National Association of
      Securities Dealers, Inc. or held of record by more than 2,000 holders;

         c.  Cash in lieu of fractional shares or fractional depository receipts
      described in the foregoing subparagraphs a. and b. of this paragraph; or

         d.  Any  combination  of  the  shares of stock, depository receipts and
      cash  in  lieu  of  fractional  shares  or  fractional depository receipts
      described  in the foregoing subparagraphs a., b. and c. of this paragraph.

      (3) In the  event all of the stock of a  subsidiary  Delaware  corporation
   party to a merger  effected  under  Section 253 of this title is not owned by
   the parent  corporation  immediately  prior to the merger,  appraisal  rights
   shall be available for the shares of the subsidiary Delaware corporation.

(c) Any  corporation  may  provide  in its  certificate  of  incorporation  that
appraisal  rights  under this section  shall be available  for the shares of any
class or series of its stock as a result of an amendment to its  certificate  of
incorporation,  any  merger  or  consolidation  in which  the  corporation  is a
constituent corporation or the sale of all or substantially all of the assets of
the

                                      A-3


<PAGE>





corporation.  If the certificate of incorporation contains such a provision, the
procedures of this section, including those set forth in subsections (d) and (e)
of this section, shall apply as nearly as is practicable.

(d) Appraisal rights shall be perfected as follows:

      (1) If a proposed merger or  consolidation  for which appraisal rights are
   provided  under this section is to be submitted  for approval at a meeting of
   stockholders,  the  corporation,  not less than 20 days prior to the meeting,
   shall  notify  each of its  stockholders  who was such on the record date for
   such meeting with respect to shares for which appraisal  rights are available
   pursuant to subsections (b) or (c) hereof that appraisal rights are available
   for any or all of the  shares  of the  constituent  corporations,  and  shall
   include in such notice a copy of this section.  Each stockholder  electing to
   demand the appraisal of his shares shall deliver to the  corporation,  before
   the taking of the vote on the merger or  consolidation,  a written demand for
   appraisal  of his shares.  Such demand will be  sufficient  if it  reasonably
   informs  the  corporation  of the  identity of the  stockholder  and that the
   stockholder intends thereby to demand the appraisal of his shares. A proxy or
   vote against the merger or consolidation  shall not constitute such a demand.
   A stockholder  electing to take such action must do so by a separate  written
   demand as herein  provided.  Within 10 days after the effective  date of such
   merger or consolidation,  the surviving or resulting corporation shall notify
   each stockholder of each  constituent  corporation who has complied with this
   subsection  and has not  voted in  favor of or  consented  to the  merger  or
   consolidation  of the date  that  the  merger  or  consolidation  has  become
   effective; or

      (2) If the merger or consolidation was approved pursuant to Section 228 or
   Section 253 of this title,  each constituent  corporation,  either before the
   effective date of the merger or  consolidation or within ten days thereafter,
   shall  notify  each of the  holders  of any  class or series of stock of such
   constituent  corporation who are entitled to appraisal rights of the approval
   of the merger or  consolidation  and that appraisal  rights are available for
   any or all  shares  of such  class or  series  of  stock of such  constituent
   corporation,  and  shall  include  in such  notice  a copy  of this  section;
   provided  that, if the notice is given on or after the effective  date of the
   merger or  consolidation,  such  notice  shall be given by the  surviving  or
   resulting  corporation to all such holders of any class or series of stock of
   a constituent  corporation that are entitled to appraisal rights. Such notice
   may,  and,  if  given  on or  after  the  effective  date  of the  merger  or
   consolidation,  shall, also notify such stockholders of the effective date of
   the merger or  consolidation.  Any stockholder  entitled to appraisal  rights
   may,  within twenty days after the date of mailing of such notice,  demand in
   writing from the  surviving or resulting  corporation  the  appraisal of such
   holder's shares.  Such demand will be sufficient if it reasonably informs the
   corporation  of the  identity  of the  stockholder  and that the  stockholder
   intends  thereby to demand the  appraisal of such  holder's  shares.  If such
   notice did not notify  stockholders  of the  effective  date of the merger or
   consolidation,  either  (i) each such  constituent  corporation  shall send a
   second  notice  before  the  effective  date of the  merger or  consolidation
   notifying  each of the  holders  of any  class  or  series  of  stock of such
   constituent  corporation  that  are  entitled  to  appraisal  rights  of  the
   effective  date of the  merger  or  consolidation  or (ii) the  surviving  or
   resulting  corporation shall send such a second notice to all such holders on
   or within 10 days after such effective date; provided,  however, that if such
   second  notice is sent more than 20 days  following  the sending of the first
   notice,  such  second  notice  need only be sent to each  stockholder  who is
   entitled to appraisal rights and who has demanded  appraisal of such holder's
   shares in accordance with this  subsection.  An affidavit of the secretary or
   assistant  secretary  or of the  transfer  agent of the  corporation  that is
   required to give either notice that such notice has been given shall,  in the
   absence of fraud,  be prima facie evidence of the facts stated  therein.  For
   purposes of determining the  stockholders  entitled to receive either notice,
   each constituent corporation may fix, in advance, a record date that shall be
   not more than 10 days prior to the date the notice is given;  provided  that,
   if the  notice  is given on or after  the  effective  date of the  merger  or
   consolidation,  the record date shall be such  effective  date.  If no record
   date is fixed and the notice is given prior to the effective date, the record
   date  shall be the close of  business  on the day next  preceding  the day on
   which the notice is given.

(e) Within 120 days after the effective date of the merger or consolidation, the
surviving or resulting  corporation  or any  stockholder  who has complied  with
subsections  (a) and (d)  hereof  and who is  otherwise  entitled  to  appraisal
rights,  may file a petition in the Court of Chancery  demanding a determination
of the  value  of  the  stock  of all  such  stockholders.  Notwithstanding  the
foregoing,  at any time within 60 days after the effective date of the merger or
consolidation, any

                                      A-4


<PAGE>
stockholder  shall have the right to withdraw  his demand for  appraisal  and to
accept the terms offered upon the merger or consolidation. Within 120 days after
the  effective  date of the merger or  consolidation,  any  stockholder  who has
complied with the  requirements of subsections (a) and (d) hereof,  upon written
request,  shall be entitled to receive from the corporation surviving the merger
or resulting  from the  consolidation  a statement  setting  forth the aggregate
number of  shares  not voted in favor of the  merger or  consolidation  and with
respect to which  demands for  appraisal  have been  received and the  aggregate
number of holders of such shares.  Such written statement shall be mailed to the
stockholder  within 10 days after his written  request  for such a statement  is
received  by the  surviving  or  resulting  corporation  or within 10 days after
expiration of the period for delivery of demands for appraisal under  subsection
(d) hereof, whichever is later.

(f) Upon the filing of any such  petition  by a  stockholder,  service of a copy
thereof shall be made upon the surviving or resulting  corporation,  which shall
within 20 days after such service file in the office of the Register in Chancery
in which the petition was filed a duly  verified list  containing  the names and
addresses of all  stockholders  who have  demanded  payment for their shares and
with whom  agreements  as to the value of their  shares have not been reached by
the surviving or resulting  corporation.  If the petition  shall be filed by the
surviving or resulting corporation,  the petition shall be accompanied by such a
duly verified list. The Register in Chancery,  if so ordered by the Court, shall
give  notice of the time and place  fixed for the  hearing of such  petition  by
registered or certified  mail to the surviving or resulting  corporation  and to
the stockholders shown on the list at the addresses therein stated.  Such notice
shall also be given by 1 or more  publications at least 1 week before the day of
the  hearing,  in a newspaper  of general  circulation  published in the City of
Wilmington, Delaware or such publication as the Court deems advisable. The forms
of the notices by mail and by  publication  shall be approved by the Court,  and
the costs thereof shall be borne by the surviving or resulting corporation.

(g) At the hearing on such petition,  the Court shall determine the stockholders
who have  complied  with this section and who have become  entitled to appraisal
rights.  The Court may require the  stockholders  who have demanded an appraisal
for their shares and who hold stock  represented by certificates to submit their
certificates  of stock to the Register in Chancery  for notation  thereon of the
pendency of the appraisal  proceedings;  and if any stockholder  fails to comply
with  such  direction,  the  Court  may  dismiss  the  proceedings  as  to  such
stockholder.

(h) After determining the stockholders entitled to an appraisal, the Court shall
appraise the shares,  determining  their fair value  exclusive of any element of
value  arising  from  the   accomplishment  or  expectation  of  the  merger  or
consolidation,  together  with a fair rate of interest,  if any, to be paid upon
the amount  determined to be the fair value. In determining such fair value, the
Court shall take into account all relevant factors. In determining the fair rate
of interest, the Court may consider all relevant factors,  including the rate of
interest which the surviving or resulting  corporation  would have had to pay to
borrow money  during the pendency of the  proceeding.  Upon  application  by the
surviving or resulting corporation or by any stockholder entitled to participate
in the appraisal proceeding, the Court may, in its discretion,  permit discovery
or other pretrial  proceedings and may proceed to trial upon the appraisal prior
to the final  determination  of the  stockholder  entitled to an appraisal.  Any
stockholder  whose name appears on the list filed by the  surviving or resulting
corporation pursuant to subsection (f) of this section and who has submitted his
certificates  of stock to the  Register in Chancery,  if such is  required,  may
participate fully in all proceedings  until it is finally  determined that he is
not entitled to appraisal rights under this section.

(i) The Court shall direct the payment of the fair value of the shares, together
with  interest,  if  any,  by the  surviving  or  resulting  corporation  to the
stockholders entitled thereto.  Interest may be simple or compound, as the Court
may direct.  Payment shall be so made to each such  stockholder,  in the case of
holders of  uncertificated  stock  forthwith,  and the case of holders of shares
represented  by  certificates  upon  the  surrender  to the  corporation  of the
certificates  representing  such stock.  The  Court's  decree may be enforced as
other decrees in the Court of Chancery may be enforced,  whether such  surviving
or resulting corporation be a corporation of this State or of any state.

(j) The costs of the  proceeding  may be  determined by the Court and taxed upon
the parties as the Court deems equitable in the circumstances.  Upon application
of a stockholder,  the Court may order all or a portion of the expenses incurred
by any  stockholder  in  connection  with the appraisal  proceeding,  including,
without  limitation,  reasonable  attorneys'  fees and the fees and  expenses of
experts,  to be charged pro rata against the value of all the shares entitled to
an appraisal.

(k) From and  after  the  effective  date of the  merger  or  consolidation,  no
stockholder who has demanded his appraisal  rights as provided in subsection (d)
of this  section  shall be  entitled  to vote such  stock for any  purpose or to
receive  payment  of  dividends  or other  distributions  on the  stock  (except
dividends or other  distributions  payable to  stockholders  of record at a date
which is prior to the effective date of the merger or consolidation);  provided,
however, that if no petition for an

                                      A-5


<PAGE>
appraisal  shall be filed  within the time  provided in  subsection  (e) of this
section,  or if such  stockholder  shall  deliver to the  surviving or resulting
corporation  a  written  withdrawal  of  his  demand  for  an  appraisal  and an
acceptance  of the  merger or  consolidation,  either  within 60 days  after the
effective date of the merger or  consolidation  as provided in subsection (e) of
this section or thereafter with the written  approval of the  corporation,  then
the right of such stockholder to an appraisal shall cease.  Notwithstanding  the
foregoing,  no appraisal  proceeding in the Court of Chancery shall be dismissed
as to any stockholder  without the approval of the Court,  and such approval may
be conditioned upon such terms as the Court deems just.

(l) The shares of the surviving or resulting  corporation to which the shares of
such objecting  stockholders  would have been converted had they assented to the
merger or consolidation  shall have the status of authorized and unissued shares
of the surviving or resulting corporation.

                                      A-6


<PAGE>





Facsimile copies of the Letters of Transmittal  will be accepted.  The Letter of
Transmittal,  Share  Certificates for your Shares,  and other required documents
should be sent or delivered  by you,  your broker,  dealer,  commercial  bank or
trust company to the Depositary at its addresses set forth below.

                                THE DEPOSITARY:
                             THE BANK OF NEW YORK
                               -----------------


<TABLE>

<S>                                <C>                                  <C>

                                                                              By Hand or
          By Mail:                   By Facsimile Transmission:           Overnight Courier:
      The Bank of New York         (for Eligible Institutions Only)      The Bank of New York
        Tender & Exchange                  (212) 815-6213                 Tender & Exchange
             Department              For Confirmation Telephone:              Department
          P.O. Box 11248                   (800) 507-9357                 101 Barclay Street
      Church Street Station                                              Receive and Deliver
 New York, New York 10286-1248                                                  Window
                                                                        New York, New York 10286

</TABLE>

Stockholders  should contact the Information  Agent, the Dealer Manager or their
broker,  dealer,  commercial bank or trust company for assistance concerning the
Offer.  Requests for  additional  copies of the Offer to Purchase and Letters of
Transmittal may also be directed to the Information Agent.

                             THE INFORMATION AGENT:
                       (LOGO FOR GEORGESON COMPANY, INC.)

                               Wall Street Plaza
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 440-9800
                         Call Toll Free: (800) 223-2064

                      THE DEALER MANAGER FOR THE OFFER IS:

                               J.P. MORGAN & CO.

                                 60 Wall Street
                                 Mail Stop 25RY
                            New York, New York 10260
                           (888) 576-5626 (toll free)




THE OFFER AND  WITHDRAWAL  RIGHTS WILL EXPIRE AT 12:00  MIDNIGHT,  NEW YORK CITY
TIME, ON MONDAY,  AUGUST 11, 1997 (THE "EXPIRATION  DATE"),  UNLESS THE OFFER IS
EXTENDED.

                              LETTER OF TRANSMITTAL
                                TO TENDER SHARES
                                       OF
                                  COMMON STOCK
                                       OF
                           CONTROL DATA SYSTEMS, INC.
              PURSUANT TO THE OFFER TO PURCHASE DATED JULY 15, 1997
                                       BY
                             CDSI ACQUISITION CORP.
                          A WHOLLY OWNED SUBSIDIARY OF
                            CDSI HOLDING CORPORATION

                        The Depositary for the Offer is:

                             THE BANK OF NEW YORK

<TABLE>

<S>                               <C>                                  <C>

             By Mail:               By Facsimile Transmission:               By Hand or
     The Bank of New York         (for Eligible Institutions Only)       Overnight Courier:
       Tender & Exchange                  (212) 815-6213                The Bank of New York
            Department                                                    Tender & Exchange
         P.O. Box 11248             For Confirmation Telephone:              Department
     Church Street Station                (800) 507-9357                 101 Barclay Street
New York, New York 10286-1248                                            Receive and Deliver
                                                                               Window
                                                                       New York, New York 10286

</TABLE>

     Delivery of the Letter of Transmittal to an address other than as set forth
above will not constitute a valid delivery.

     The  instructions  accompanying  this Letter of Transmittal  should be read
carefully before this Letter of Transmittal is completed.


<PAGE>





     This  Letter  of  Transmittal  is  to  be  completed  by   stockholders  if
certificates  for Shares (as  defined in the Offer to  Purchase,  dated July 15,
1997 (the "Offer to  Purchase")),  are to be forwarded  herewith  or,  unless an
Agent's Message (as defined in the Offer to Purchase) is utilized, if tenders of
shares are made by book-entry  transfer to an account  maintained by The Bank of
New  York  (the  "Depositary")  at  The  Depository  Trust  Company  ("DTC")  or
Philadelphia  Depository  Trust Company  ("PDTC")  (each a "Book-Entry  Transfer
Facility" and collectively referred to as the "Book-Entry Transfer Facilities"),
pursuant  to the  procedures  set forth in  Section 3 of the Offer to  Purchase.
Stockholders who tender Shares by book-entry  transfer are referred to herein as
"Book-Entry Stockholders".

  Holders  of  Shares   whose   certificates   for  such   Shares   (the  "Share
Certificates") are not immediately available,  or who cannot deliver their Share
Certificates  and all other required  documents to the Depositary on or prior to
the  Expiration  Date,  must tender  their Shares  according  to the  guaranteed
delivery  procedures  set  forth in  Section  3 of the  Offer to  Purchase.  See
Instruction 2.

NOTE: SIGNATURES MUST BE PROVIDED ON THE INSIDE AND REVERSE BACK COVER.
       PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.

[ ]  CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER TO
     THE DEPOSITARY'S  ACCOUNT AT ONE OF THE BOOK-ENTRY  TRANSFER FACILITIES AND
     COMPLETE THE FOLLOWING:

Name of Tendering Institution: 
                              -------------------------------------------------
   Check Box of Book-Entry Transfer Facility:

     [ ] The Depository Trust Company

     [ ] Philadelphia Depository Trust Company

   Account No. 

               -----------------------------------------------------------------
   Transaction Code No. 
                        --------------------------------------------------------

[ ]  CHECK HERE IF SHARES ARE BEING DELIVERED PURSUANT TO A NOTICE OF GUARANTEED
     DELIVERY  PREVIOUSLY  SENT TO THE  DEPOSITARY  AND COMPLETE THE  FOLLOWING.
     PLEASE ENCLOSE A PHOTOCOPY OF SUCH NOTICE OF GUARANTEED DELIVERY.

     Name(s) of Registered Holder(s): 
                                     -------------------------------------------

     Window Ticket Number (if any): 
                                   ---------------------------------------------

     Date of Execution of Notice of Guaranteed Delivery: 
                                                         -----------------------

     Name of Institution which Guaranteed Delivery: 
                                                    ----------------------------

                                       2


<PAGE>
<TABLE>
<CAPTION>

                                DESCRIPTION OF SHARES TENDERED

 NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)             SHARE CERTIFICATE(S) AND
  (PLEASE FILL IN, IF BLANK, EXACTLY AS NAME(S)                 SHARE(S) TENDERED
        APPEAR(S) ON SHARES CERTIFICATES)             (ATTACH ADDITIONAL LIST, IF NECESSARY)

                                                                    TOTAL NUMBER
                                                                  OF SHARES
                                                       SHARE        REPRESENTED     NUMBER OF
                                                    CERTIFICATE       BY SHARE        SHARES
                                                    NUMBER(S)*    CERTIFICATE(S)*   TENDERED**
                                                    ----------    ---------------   ----------

<S>                                                <C>            <C>               <C>
                                                 -------------    ---------------   ----------

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

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

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

                                                 TOTAL SHARES
- ----------------------------------------------------------------------------------------------

*    Need not be completed by Book-Entry Stockholders.

**   Unless otherwise indicated,  it will be assumed that all Shares represented
     by  certificates  delivered  to the  Depositary  are  being  tendered.  See
     Instruction 4.

</TABLE>

                                       3


<PAGE>

Ladies and Gentlemen:

     The undersigned hereby tenders to CDSI Acquisition Corp. (the "Purchaser"),
a Delaware corporation and a wholly owned subsidiary of CDSI Holding Corporation
, a Delaware corporation  ("Parent"),  the described shares of Common Stock, par
value $.01 per share (the "Shares"),  of Control Data Systems,  Inc., a Delaware
corporation (the  "Company"),  at a price of $20.25 per Share, net to the seller
in cash,  without  interest,  upon the terms and subject to the  conditions  set
forth in the Offer to Purchase,  dated July 15, 1997 (the "Offer to  Purchase"),
receipt  of which is hereby  acknowledged,  and in this  Letter  of  Transmittal
(which  together  with the  Offer  to  Purchase  constitute  the  "Offer").  The
undersigned  understands  that the  Purchaser  reserves the right to transfer or
assign,  in whole  or from  time to time in part,  to  Parent  or one or more of
Parent's subsidiaries or affiliates, the right to purchase all or any portion of
the Shares tendered pursuant to the Offer.

     Subject to, and effective  upon,  acceptance for payment of and payment for
the Shares  tendered  herewith in  accordance  with the terms and subject to the
conditions  of the Offer  (including,  if the Offer is extended or amended,  the
terms and  conditions of such extension or amendment),  the  undersigned  hereby
sells, assigns, and transfers to, or upon the order of, the Purchaser all right,
title and  interest in and to all of the Shares that are being  tendered  hereby
and any and all dividends on the Shares or any distribution (including,  without
limitation,  the issuance of additional  Shares  pursuant to a stock dividend or
stock split,  the issuance of other securities or the issuance of rights for the
purchase of any securities)  with respect to the Shares that is declared or paid
by the  Company on or after July 15,  1997 and is  payable or  distributable  to
stockholders  of record  on a date  prior to the  transfer  into the name of the
Purchaser or its nominees or transferees on the Company's stock transfer records
of  the  Shares  purchased  pursuant  to  the  Offer  (a  "Distribution"),   and
constitutes and  irrevocably  appoints the Depositary the true and lawful agent,
attorney-in-fact  and  proxy  of the  undersigned  to  the  full  extent  of the
undersigned's  rights with respect to such Shares (and any  Distributions)  with
full power of substitution  (such power of attorney and proxy being deemed to be
an  irrevocable   power  coupled  with  an  interest),   to  (i)  deliver  Share
Certificates (and any Distributions) or transfer ownership of such Shares on the
account books  maintained by the  Book-Entry  Transfer  Facilities,  together in
either such case with all accompanying  evidences of transfer and  authenticity,
to or upon the order of the  Purchaser  upon receipt by the  Depositary,  as the
undersigned's  agent,  of the  purchase  price,  (ii)  present  Shares  (and any
Distributions)  for  transfer on the books of the Company and (iii)  receive all
benefits and  otherwise  exercise all rights of  beneficial  ownership of Shares
(and any Distributions), all in accordance with the terms of the Offer.

     The undersigned hereby irrevocably  appoints Patrick J. Welsh and Thomas E.
McInerney,  and each of them individually,  the attorneys-in-fact and proxies of
the undersigned, each with full power of substitution, to vote in such manner as
each such attorney and proxy or his substitute  shall,  in his sole  discretion,
deem proper,  and otherwise  act  (including  pursuant to written  consent) with
respect to all of the  Shares  tendered  hereby  which  have been  accepted  for
payment  by the  Purchaser  prior to the time of such  vote or  action  (and any
Distributions)  which the  undersigned  is  entitled  to vote at any  meeting of
stockholders  (whether  annual or special  and  whether or not an  adjourned  or
postponed  meeting) of the Company,  or by consent in lieu of such  meeting,  or
otherwise.  This power of attorney  and proxy is coupled with an interest in the
tendered  Shares and is irrevocable and is granted in  consideration  of, and is
effective  upon,  the  acceptance for payment of such Shares by the Purchaser in
accordance  with the terms of the  Offer.  Such  acceptance  for  payment  shall
revoke,  without further action, any other power of attorney or proxy granted by
the  undersigned at any time with respect to the Shares (and any  Distributions)
and no subsequent powers of attorney or proxies will be given (and if given will
be deemed not to be  effective)  with respect  thereto by the  undersigned.  The
undersigned  understands that the Purchaser  reserves the right to require that,
in  order  for  Shares  to be  deemed  validly  tendered,  immediately  upon the
Purchaser's  acceptance  for  payment  of  such  Shares,  the  Purchaser  or its
designees is able to exercise full voting rights with respect to such Shares and
other securities, including voting at any meeting of stockholders.

     The  undersigned  hereby  represents and warrants that the  undersigned has
full  power and  authority  to tender,  sell,  assign  and  transfer  the Shares
tendered hereby (and any Distributions) and that, when the same are accepted for
payment by the  Purchaser,  the  Purchaser  will acquire  good,  marketable  and
unencumbered title thereto, free and clear of all liens,  restrictions,  charges
and  encumbrances  and the same will not be subject to any  adverse  claim.  The
undersigned,  upon request,  will execute and deliver all  additional  documents
deemed by the  Depositary  or the  Purchaser  to be  necessary  or  desirable to
complete the sale,  assignment and transfer of the Shares  tendered  hereby (and
any  Distributions).  In addition,  the  undersigned  shall  promptly  remit and
transfer to the  Depositary  for the account of the  Purchaser any and all other
Distributions  in  respect  of  the  Shares  tendered  hereby,   accompanied  by
appropriate   documentation   of  transfer  and,   pending  such  remittance  or
appropriate assurance thereof, the Purchaser shall be entitled to all rights and
privileges  as owner of any such  Distributions,  and may  withhold  the  entire
purchase price or deduct from the purchase price of Shares  tendered  hereby the
amount or value thereof, as determined by the Purchaser in its sole discretion.

     All authority  herein  conferred or herein agreed to be conferred shall not
be affected by, and shall  survive,  the death or incapacity of the  undersigned
and any obligation of the undersigned hereunder shall be binding upon the heirs,
executors, administrators, legal representatives,  successors and assigns of the
undersigned.  Except  as  stated  in the  Offer  to  Purchase,  this  tender  is
irrevocable.

     The undersigned  understands  that tenders of Shares pursuant to any one of
the  procedures  described  in  Section  3 of the Offer to  Purchase  and in the
instructions  hereto will constitute a binding agreement between the undersigned
and the Purchaser upon the terms and subject to the conditions of the Offer.

     Unless otherwise  indicated  herein under "Special  Payment  Instructions,"
please  issue  the  check  for  the  purchase  price  and/or  return  any  Share
Certificates  not  tendered  or  accepted  for  payment  in the  name(s)  of the
undersigned.  Similarly,  unless  otherwise  indicated  under "Special  Delivery
Instructions,"  please mail the check for the purchase  price and/or  return any
Share  Certificates  not  tendered or accepted  for  payment  (and  accompanying
documents,  as  appropriate)  to the  undersigned at the address shown below the
undersigned's  signature. In the event that either or both the "Special Delivery
Instructions" and the "Special Payment Instructions" are completed, please issue
the check for the  purchase  price  and/or  return  any Share  Certificates  not
tendered  or accepted  for  payment in the  name(s)  of, and deliver  said check
and/or return Share  Certificates  to, the person or persons so  indicated.  The
undersigned  recognizes  that the Purchaser  has no  obligation  pursuant to the
"Special  Payment  Instructions"  to  transfer  any Shares  from the name of the
registered  holder  thereof if the Purchaser  does not accept for payment any of
such Shares.

                                       4


<PAGE>
<TABLE>
<CAPTION>

       SPECIAL PAYMENT INSTRUCTIONS                  SPECIAL DELIVERY INSTRUCTIONS       
     (SEE INSTRUCTIONS 1, 5, 6 AND 7)              (SEE INSTRUCTIONS 1, 5, 6 AND 7)      
<S>                                           <C>                                        
To be completed ONLY if  certificates  for    To be completed ONLY if  certificates  for 
Shares  not  tendered  or  not   purchased    Shares  not  tendered  or  not   purchased 
and/or the check for the purchase price of    and/or the check for the purchase price of 
Shares  purchased  are to be issued in the    Shares purchased are to be sent to someone 
name   of    someone    other   than   the    other  than  the  undersigned  or  to  the 
undersigned.                                  undersigned  at an address other than that 
                                              shown above.                               
                                              
                                           
Mail Check [ ] and/or Certificates [ ] to:    Issue Check [ ] and/or Certificates [ ] to:

Name______________________________________    Name_______________________________________
               (Please Print)                                (Please Print)

Address___________________________________    Address____________________________________

__________________________________________    ____________________________________________
              (Include Zip Code)                            (Include Zip Code)

__________________________________________    ____________________________________________
(Tax Identification or Social Security No.)   (Tax Identification or Social Security No.)
      (See Substitute Form W-9 below)                 (See Substitute Form W-9 below)
</TABLE>

                                   SIGN HERE

                PLEASE ALSO COMPLETE SUBSTITUTE FORM W-9 BELOW

_______________________________________________________________________________
 SIGN HERE-                                                        - SIGN HERE

_______________________________________________________________________________
                           (SIGNATURE(S) OF OWNER(S))

Dated: ___________________________________, 1997

(Must be signed by the registered  holder(s) exactly as name(s) appear(s) on the
Share  Certificate(s)  or  on  a  security  position  listing  or  by  person(s)
authorized  to  become  registered   holder(s)  by  certificates  and  documents
transmitted  herewith. If signature is by trustees,  executors,  administrators,
guardians,  attorneys-in-fact,  officers of  corporations  or others acting in a
fiduciary or representative capacity,  please provide the necessary information.
See Instruction 5.)

Name(s)_________________________________________________________________________

________________________________________________________________________________
                                (Please Print)

Capacity (Full Title)___________________________________________________________

Address_________________________________________________________________________

________________________________________________________________________________
                             (Including Zip Code)

(Area Code and Telephone No.)___________________________________________________

(Tax Identification or Social Security No.)_____________________________________

                         (SEE SUBSTITUTE FORM W-9 BELOW)
                            GUARANTEE OF SIGNATURE(S)

                    (IF REQUIRED - SEE INSTRUCTIONS 1 AND 5)

(Authorized Signature(s))_______________________________________________________

(Name)__________________________________________________________________________

(Name of Firm)__________________________________________________________________

(Address Including Zip Code)____________________________________________________

(Area Code and Telephone Number)________________________________________________

(Dated)___________________________________, 1997

                                       5


<PAGE>


                                 INSTRUCTIONS

             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER

     1.  Guarantee  of  Signatures.  No  signature  guarantee  on this Letter of
Transmittal  is  required  (a) if this  Letter of  Transmittal  is signed by the
registered  holder of the  Shares  tendered  herewith,  unless  such  holder has
completed  either the box entitled  "Special  Delivery  Instructions" or the box
entitled  "Special Payment  Instructions" or (b) if such Shares are tendered for
the account of a bank or trust company in the United States or by a firm that is
a member  of the  National  Association  of  Securities  Dealers,  Inc.  or of a
registered national securities exchange which is a member of a recognized member
of a Medallion Signature Guarantee Program (an "Eligible  Institution").  In all
other cases,  all signatures on this Letter of Transmittal must be guaranteed by
an Eligible Institution. See Instruction 5.

     2.  Delivery  of Letter of  Transmittal  and  Certificates.  This Letter of
Transmittal is to be used if Share Certificates are to be forwarded herewith or,
unless an Agent's Message is utilized, if tenders are to be made pursuant to the
procedures for tender by book-entry transfer set forth in Section 3 of the Offer
to  Purchase.   Share  Certificates,   or  timely  confirmation  (a  "Book-Entry
Confirmation")  of a  book-entry  transfer of such Shares into the  Depositary's
account at a Book-Entry Transfer Facility, as well as this Letter of Transmittal
(or a facsimile hereof), properly completed and duly executed, with any required
signature  guarantees,  or an  Agent's  Message  (as  defined  in the  Offer  to
Purchase) in  connection  with a book-entry  transfer,  and any other  documents
required by this Letter of  Transmittal,  must be received by the  Depositary at
one of its  addresses  set forth  herein  prior to the  Expiration  Date and, if
later,  stockholders  who cannot deliver their Share  Certificates and all other
required  documents to the Depositary prior to the Expiration Date or who cannot
complete the  procedures  for delivery by book-entry  transfer on a timely basis
must tender their Shares by properly  completing  and duly executing a Notice of
Guaranteed  Delivery pursuant to the guaranteed delivery procedures set forth in
Section 3 of the Offer to Purchase.  Pursuant to such procedure: (a) such tender
must be made by or through an Eligible Institution; (b) a properly completed and
duly executed  Notice of  Guaranteed  Delivery,  substantially  in the form made
available by the  Purchaser,  must be received by the  Depositary on or prior to
the  Expiration   Date;  and  (c)  the  Share   Certificates  (or  a  Book-Entry
Confirmation)  representing  all  tendered  Shares,  in proper form for transfer
together with a properly completed and duly executed Letter of Transmittal (or a
manually signed facsimile hereof),  with any required signature  guarantees (or,
in the  case of a  book-entry  transfer,  an  Agent's  Message)  and  any  other
documents  required  by this  Letter of  Transmittal,  must be  received  by the
Depositary  within three Nasdaq  National  Market trading days after the date of
execution of such Notice of Guaranteed  Delivery as provided in Section 3 of the
Offer to  Purchase.  If  Share  Certificates  are  forwarded  separately  to the
Depositary,  a properly  completed and duly executed  Letter of Transmittal  (or
facsimile hereof) must accompany each such delivery.

     THE METHOD OF DELIVERY OF SHARE  CERTIFICATES,  THIS LETTER OF  TRANSMITTAL
AND ALL OTHER REQUIRED DOCUMENTS IS AT THE OPTION AND SOLE RISK OF THE TENDERING
STOCKHOLDER, AND THE DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY
THE  DEPOSITARY.  IF DELIVERY IS BY MAIL,  REGISTERED  MAIL WITH RETURN  RECEIPT
REQUESTED,  PROPERLY  INSURED,  IS  RECOMMENDED.  IN ALL CASES,  SUFFICIENT TIME
SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.

     No  alternative,  conditional or contingent  tenders will be accepted.  All
tendering stockholders,  by execution of this Letter of Transmittal or facsimile
hereof,  waive any right to receive any notice of the acceptance of their Shares
for payment.

     3. Inadequate  Space.  If the space provided  herein under  "Description of
Shares  Tendered" is inadequate,  the  certificate  numbers and/or the number of
Shares  and any other  required  information  should  be  listed  on a  separate
schedule  attached hereto and separately signed on each page thereof in the same
manner as this Letter of Transmittal is signed.

     4. Partial Tenders (Not Applicable to Stockholders who Tender by Book-Entry
Transfer).  If fewer than all the Shares evidenced by any certificate  submitted
are to be tendered, fill in the number of Shares which are to be tendered in the
box entitled "Number of Shares Tendered." In such case, new  certificate(s)  for
the remainder of the Shares that were evidenced by your old certificate(s)  will
be sent to you, unless otherwise provided in the appropriate box marked "Special
Payment  Instructions" and/or "Special Delivery  Instructions" on this Letter of
Transmittal,  as soon as  practicable  after the  Expiration  Date.  All  Shares
represented by  certificates  delivered to the Depositary will be deemed to have
been tendered unless otherwise indicated.

     5. Signatures of Letter of Transmittal,  Stock Powers and Endorsements.  If
this Letter of Transmittal  is signed by the registered  holder(s) of the Shares
tendered hereby,  the signature(s)  must correspond  exactly with the name(s) as
written on the face of the certificate(s) without alteration, enlargement or any
change whatsoever.

     If any of the  Shares  tendered  hereby  are owned of record by two or more
joint owners, all such owners must sign this Letter of Transmittal.

     If any  tendered  Shares  are  registered  in  different  names on  several
certificates, it will be necessary to complete, sign and submit as many separate
Letters of Transmittal as there are different registrations of certificates.

     If this  Letter of  Transmittal  or any  certificates  or stock  powers are
signed by trustees,  executors,  administrators,  guardians,  attorneys-in-fact,
officers  of  corporations  or others  acting in a fiduciary  or  representative
capacity,  such persons  should so indicate  when signing,  and proper  evidence
satisfactory to the Purchaser of their authority so to act must be submitted.

                                       6


<PAGE>
     If this Letter of Transmittal is signed by the registered  holder(s) of the
Shares listed and transmitted  hereby, no endorsements of Share  Certificates or
separate  stock  powers  are  required  unless  payment  is to be  made  to,  or
certificates  for Shares not tendered or purchased  are to be issued in the name
of, a person  other  than the  registered  holder(s).  Signatures  on such Share
Certificates or stock powers must be guaranteed by an Eligible Institution.

     If this  Letter  of  Transmittal  is  signed  by a  person  other  than the
registered  holder(s)  of the  Shares  listed,  the Share  Certificates  must be
endorsed or  accompanied  by  appropriate  stock  powers,  in either case signed
exactly  as the name or  names  of the  registered  holder(s)  appear(s)  on the
certificates.  Signatures  on such Share  Certificates  or stock  powers must be
guaranteed by an Eligible Institution.

     6. Stock  Transfer  Taxes.  Except as set forth in this  Instruction 6, the
Purchaser  will pay or cause to be paid any stock transfer taxes with respect to
the  transfer and sale of  purchased  Shares to it or its order  pursuant to the
Offer.  If,  however,  payment  of the  purchase  price is to be made to,  or if
certificates  for Shares not tendered or purchased  are to be  registered in the
name of, any person  other than the  registered  holder,  or if  tendered  Share
Certificates  are  registered in the name of any person other than the person(s)
signing  this  Letter of  Transmittal,  the amount of any stock  transfer  taxes
(whether imposed on the registered  holder or such person) payable on account of
the  transfer to such person will be deducted  from the  purchase  price  unless
satisfactory  evidence of the payment of such taxes or  exemption  therefrom  is
submitted.

     EXCEPT AS  PROVIDED IN THIS  INSTRUCTION  6, IT WILL NOT BE  NECESSARY  FOR
TRANSFER  TAX  STAMPS TO BE  AFFIXED  TO THE SHARE  CERTIFICATES  LISTED IN THIS
LETTER OF TRANSMITTAL.

     7. Special Payment and Delivery Instructions. If a check is to be issued in
the name of and/or  certificates for unpurchased  Shares are to be returned to a
person other than the signer of this Letter of  Transmittal  or if a check is to
be sent and/or such Share  Certificates are to be returned to someone other than
the signer of this Letter of  Transmittal or to an address other than that shown
on the front cover hereof,  the appropriate  boxes on this Letter of Transmittal
should be completed. See Instruction 1.

     8. Requests for Assistance or Additional Copies. Questions and requests for
assistance may be directed to the Information  Agent at its address or telephone
number set forth below.  Requests for additional copies of the Offer to Purchase
and this Letter of Transmittal  may be directed to the  Information  Agent or to
brokers, dealers, commercial banks or trust companies.

     9. 31% Backup  Withholding,  Substitute Form W-9. Under U.S. Federal income
tax law, a  stockholder  whose  tendered  Shares  are  accepted  for  payment is
required to provide the  Depositary  with such  stockholder's  correct  taxpayer
identification number ("TIN") on Substitute Form W-9 below. If the Depositary is
not provided with the correct TIN, the Internal  Revenue Service may subject the
stockholder or other payee to a $50 penalty. In addition, payments that are made
to such stockholder or other payee with respect to Shares purchased  pursuant to
the Offer may be subject to 31% backup withholding.

     Certain stockholders (including, among others, all corporations and certain
foreign  individuals) are not subject to these backup  withholding and reporting
requirements.  In  order  for a  foreign  individual  to  qualify  as an  exempt
recipient,  the  stockholder  must submit a Form W-8,  signed under penalties of
perjury,  attesting  to  that  individual's  exempt  status.  A Form  W-8 can be
obtained from the Depositary.  See the enclosed "Guidelines for Certification of
Taxpayer Identification Number on Substitute Form W-9" for more instructions.

     If backup withholding  applies,  the Depositary is required to withhold 31%
of any such payments made to the stockholder or other payee.  Backup withholding
is not an additional tax. Rather, the tax liability of persons subject to backup
withholding  will be  reduced  by the  amount of tax  withheld.  If  withholding
results in an  overpayment  of taxes, a refund may be obtained from the Internal
Revenue Service.

     The  stockholder is required to give the  Depositary the TIN (e.g.,  social
security  number or employer  identification  number) of the record owner of the
Shares or of the last  transferee  appearing  on the  transfers  attached to, or
endorsed  on, the Shares.  If the Shares are in more than one name or are not in
the name of the actual owner, consult the enclosed "Guidelines for Certification
of  Taxpayer  Identification  Number  on  Substitute  Form  W-9" for  additional
guidance on which number to report.

     10.  Lost,  Destroyed  or  Stolen   Certificates.   If  any  certificate(s)
representing  Shares has (have) been lost,  destroyed or stolen, the stockholder
should promptly notify the Transfer Agent for the Company, The Bank of New York.
The  stockholder  will then be  instructed as to the steps that must be taken in
order to replace  the  certificate(s).  This Letter of  Transmittal  and related
documents  cannot  be  processed  until the  procedures  for  replacing  lost or
destroyed certificates have been followed.

     IMPORTANT:  THIS LETTER OF TRANSMITTAL (OR A MANUALLY SIGNED FACSIMILE COPY
HEREOF) OR AN AGENT'S MESSAGE  TOGETHER WITH SHARE  CERTIFICATES OR CONFIRMATION
OF BOOK-ENTRY  TRANSFER AND ALL OTHER REQUIRED DOCUMENTS MUST BE RECEIVED BY THE
DEPOSITARY ON OR PRIOR TO THE EXPIRATION DATE.

                                       7
<PAGE>
<TABLE>
<CAPTION>


                  TO BE COMPLETED BY ALL TENDERING STOCKHOLDERS
                               (SEE INSTRUCTION 9)

                              Part  1  -  PLEASE  PROVIDE YOUR TIN IN                         Social Security Number
SUBSTITUTE                    THE  BOX   AT   RIGHT  AND  CERTIFY  BY                 or  Employer Identification  Number
FORM W-9                      SIGNING AND DATING BELOW.
                                                                                       ------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------
<S>                           <C>
                              Part  2  -  Certification-Under  penalties  of  perjury,  I certify that:
DEPARTMENT OF THE TREASURY
INTERNAL  REVENUE  SERVICE    (1)  (1) The number shown on this form is my correct (or I am waiting for a number to 
                                   be issued to me) and                                                             
PAYER'S  REQUEST FOR                                                                                                
TAXPAYER IDENTIFICATION       (2)  I am not  subject to backup  withholding  because:  (a) I am exempt  from backup 
NUMBER "TIN"                       withholding,  or (b) I have not been  notified by the Internal  Revenue  Service 
                                   (the "IRS") that I am subject to backup  withholding as a result of a failure to 
                                   report all  interest or  dividends,  or (c) the IRS has notified me that I am no 
                                   longer  subject to backup  withholding.  Certification  Instructions  - You must 
                                   cross  out item (2)  above if you  have  been  notified  by the IRS that you are 
                                   currently subject to backup withholding  because of under-reporting  interest or 
                                   dividends on your tax return.  However,  if after being notified by the IRS that 
                                   you were subject to backup withholding,  you received another  notification from 
                                   the IRS that you are no longer subject to backup  withholding,  do not cross out 
                                    such Item (2).                                                                   
                             
- ---------------------------------------------------------------------------------------------------------------------------
                                                                                                  Part 3
                   SIGNATURE: _____________________________  DATE: ________                      Awaiting
                                                                                                 TIN  [  ]
</TABLE>

NOTE: FAILURE TO COMPLETE AND RETURN THIS FORM MAY RESULT IN BACKUP  WITHHOLDING
      OF 31% OF ANY PAYMENTS  MADE TO YOU PURSUANT TO THE OFFER.  PLEASE  REVIEW
      THE  ENCLOSED  GUIDELINES  FOR  CERTIFICATION  OF TAXPAYER  IDENTIFICATION
      NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.

         YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU CHECKED THE
                      BOX IN PART 3 OF SUBSTITUTE FORM W-9.

I certify under penalties of perjury that a taxpayer  identification  number has
not been issued to me, and either (1) I have mailed or delivered an  application
to receive a Taxpayer  Identification Number to the appropriate Internal Revenue
Service Center or Social Security Administration Office, or (2) I intend to mail
or deliver an  application  in the near future.  I  understand  that if I do not
provide a  Taxpayer  Identification  Number by the time of  payment,  31% of all
reportable  payments made to me will be withheld,  but that such amounts will be
refunded to me if I then provide a Taxpayer  Identification  Number within sixty
(60) days.

- ------------------------------------------  ------------------------------, 1997
               Signature                                Date

Any  questions or requests  for  assistance  may be directed to the  Information
Agent at its address and telephone number listed below. Additional copies of the
Offer to Purchase,  this Letter of Transmittal  and other tender offer materials
may be  obtained  from the  Information  Agent as set forth  below,  and will be
furnished promptly at the Purchaser's expense. You may also contact your broker,
dealer,   commercial  bank,  trust  company  or  other  nominee  for  assistance
concerning the Offer.

                    THE INFORMATION AGENT FOR THE OFFER IS:
                                     (LOGO)

                               Wall Street Plaza
                            New York, New York 10005
                Banks and Brokers Call Collect: (212) 440-9800
                   All Others Call Toll Free: (800) 223-2064

                      The Dealer Manager for the Offer is:

                               J.P. MORGAN & CO.

                                 60 Wall Street
                                 Mail Stop 25RY
                            New York, New York 10260
                                 (888) 576-5626




                  Arden Hills,  Minnesota,  July 9 -- Control Data Systems, Inc.
(Nasdaq:  CDAT) and CDSI Holding Corporation (CDSI Holding), a company formed at
the direction of Welsh, Carson, Anderson & Stowe (WCAS), jointly announced today
that they have signed a definitive  merger agreement for CDSI Holding to acquire
all of the  outstanding  common  shares of Control Data at a price of $20.25 per
share.

                  Under the terms of the merger agreement, which was unanimously
approved by the boards of directors  of Control  Data Systems and CDSI  Holding,
CDSI  Holding,  through a subsidiary,  will promptly  commence a tender offer to
purchase all of the  outstanding  shares of Control Data.  The cash tender offer
will be followed by a cash merger to acquire all shares not tendered,  also at a
price of $20.25 per share.

                  The tender offer is expected to commence on July 15, 1997. The
cash tender offer is subject to receipt by the offeror of at least 51 percent of
the fully diluted shares of common stock of Control Data Systems, as well as the
satisfaction of various other  conditions,  including  expiration of the waiting
period under the Hart-Scott-Rodino Act.

                  "The  board and  management  of  Control  Data  Systems  fully
endorse this proposed  acquisition," said Jim Ousley, Control Data president and
CEO.  Control Data Systems was formed in August 1992 through a stock dividend to
the  shareholders  of  the  original  Control  Data  Corporation,  now  Ceridian
Corporation.

                  Control Data Systems is a global software and services company
dedicated  to  helping  organizations   integrate  the  enterprise-wide  systems
required to create,  transmit,  access and control electronic information.  With
its Rialto brand of directory-enabled  software tools and services,  the company
is focused on the architecture,  implementation  and lifetime support of digital
commerce  and   enterprise-wide   client-server   solutions   for  business  and
government.

                  WCAS is one of the country's leading private investment firms.
It focuses on two primary industries:  health care and information services. The
companies in its portfolio have combined revenues of more than $9 billion.

                  Contact: Tom Charland, Media Relations,  612-415-4229,  or Jim
McLendon, Investor Relations, 612-415-4469, both of Control Data Systems, Inc.






================================================================================








                          AGREEMENT AND PLAN OF MERGER


                                      Among


                            CDSI HOLDING CORPORATION,

                             CSDI ACQUISITION CORP.

                                       and

                           CONTROL DATA SYSTEMS, INC.










                            Dated as of July 8, 1997









================================================================================



<PAGE>



                               TABLE OF CONTENTS
                                                                          Page

                                   ARTICLE I
                                   THE OFFER

SECTION 1.01  The Offer....................................................  1
SECTION 1.02  Company Action...............................................  2
SECTION 1.03  Directors....................................................  3

                                  ARTICLE II
                                  THE MERGER

SECTION 2.01  The Merger...................................................  4
SECTION 2.02  Effect of the Merger.........................................  4
SECTION 2.03  Consummation of the Merger...................................  4
SECTION 2.04  Certificate of Incorporation; By-Laws;
                   Directors and Officers..................................  5
SECTION 2.05  Conversion of Securities.....................................  5
SECTION 2.06  Stock Options................................................  5
SECTION 2.07  Payment for Shares...........................................  6
SECTION 2.08  Dissenting Shares............................................  8
SECTION 2.09  Dissenting Shares After Payment of
                   Fair Value..............................................  8

                                  ARTICLE III
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

SECTION 3.01  Organization and Qualification...............................  9
SECTION 3.02  Subsidiaries.................................................  9
SECTION 3.03  Authority Relative to Agreement.............................. 10
SECTION 3.04  Non-Contravention............................................ 10
SECTION 3.05  Capitalization............................................... 10
SECTION 3.06  SEC Filings.................................................. 11
SECTION 3.07  Financial Statements......................................... 11
SECTION 3.08  Absence of Certain Changes or Events......................... 12
SECTION 3.09  Governmental Approvals....................................... 12
SECTION 3.10  Compliance with Laws......................................... 13
SECTION 3.11  Disclosure Documents......................................... 13
SECTION 3.12  Litigation................................................... 14
SECTION 3.13  Software..................................................... 14
SECTION 3.14  Trade Secrets................................................ 15
SECTION 3.15  Severance Arrangements....................................... 15
SECTION 3.16  Taxes........................................................ 16
SECTION 3.17  Employee Benefit Plans....................................... 17
SECTION 3.18  Environmental Matters........................................ 18
SECTION 3.19  Customer Relationships....................................... 18
SECTION 3.20  Certain Transactions......................................... 19
SECTION 3.21  State Takeover Statute Inapplicable.......................... 19
SECTION 3.22  Brokers...................................................... 19






                                        i

<PAGE>



                                  ARTICLE IV
                   REPRESENTATIONS AND WARRANTIES OF PARENT

SECTION 4.01  Organization and Qualification............................... 19
SECTION 4.02  Authority Relative to Agreement.............................. 20
SECTION 4.03  Non-Contravention............................................ 20
SECTION 4.04  Governmental Approvals....................................... 20
SECTION 4.05  Disclosure Documents......................................... 20
SECTION 4.06  Brokers...................................................... 21
SECTION 4.07  Financing.................................................... 21

                                   ARTICLE V
                 REPRESENTATIONS AND WARRANTIES OF ACQUISITION

SECTION 5.01  Organization and Qualification............................... 22
SECTION 5.02  Authority Relative to Agreement.............................. 22
SECTION 5.03  Non-Contravention............................................ 22
SECTION 5.04  Governmental Approvals....................................... 22

                                  ARTICLE VI
                              CERTAIN AGREEMENTS

SECTION 6.01  Conduct of the Company's Business............................ 23
SECTION 6.02  Stockholder Approval......................................... 25
SECTION 6.03  Access to Information........................................ 26
SECTION 6.04  Further Assurances........................................... 26
SECTION 6.05  Inquiries and Negotiations; Certain
                   Payments................................................ 26
SECTION 6.06  Notification of Certain Matters.............................. 29
SECTION 6.07  Indemnification.............................................. 29
SECTION 6.08  Voting of Shares............................................. 30

                                  ARTICLE VII
                           CONDITIONS TO THE MERGER

SECTION 7.01  Conditions to the Merger Relating
                   to Parent and Acquisition............................... 30
SECTION 7.02  Conditions to the Merger Relating
                   to the Company.......................................... 31

                                 ARTICLE VIII
                          TERMINATION AND ABANDONMENT

SECTION 8.01  Termination and Abandonment.................................. 31
SECTION 8.02  Effect of Termination........................................ 32

                                  ARTICLE IX
                                 MISCELLANEOUS

SECTION 9.01  Nonsurvival of Representations and
                   Warranties.............................................. 32
SECTION 9.02  Expenses, Etc................................................ 33




                                       ii

<PAGE>



 SECTION 9.03  Publicity.................................................... 33
 SECTION 9.04  Execution in Counterparts.................................... 33
 SECTION 9.05  Notices...................................................... 33
 SECTION 9.06  Waivers...................................................... 34
 SECTION 9.07  Entire Agreement............................................. 34
 SECTION 9.08  Applicable Law............................................... 35
 SECTION 9.09  Binding Effect, Benefits..................................... 35
 SECTION 9.10  Assignability................................................ 35
 SECTION 9.11  Amendments................................................... 35





                                       iii

<PAGE>



                          AGREEMENT AND PLAN OF MERGER



                  AGREEMENT AND PLAN OF MERGER,  dated as of July 8, 1997, among
CDSI HOLDING CORPORATION,  a Delaware corporation  ("Parent"),  CDSI ACQUISITION
CORP.,  a  Delaware   corporation  and  a  wholly-owned   subsidiary  of  Parent
("Acquisition"),  and CONTROL DATA SYSTEMS,  INC., a Delaware  corporation  (the
"Company"). The Company and Acquisition are hereinafter sometimes referred to as
the "Constituent Corporations" and the Company as the "Surviving Corporation."

                  WHEREAS  the   respective   Boards  of  Directors  of  Parent,
Acquisition  and the Company have each  approved,  upon the terms and subject to
the  conditions   hereinafter  provided,  the  acquisition  of  the  Company  by
Acquisition  pursuant to a tender offer by Acquisition  for all the  outstanding
shares of Common Stock, $.01 par value ("Company Common Stock"), of the Company,
followed by a merger of Acquisition with and into the Company;

                  NOW,    THEREFORE,    in    consideration    of   the   mutual
representations,  warranties,  covenants,  agreements and  conditions  contained
herein, and in order to set forth the terms and conditions of the Merger and the
mode of carrying  the same into  effect,  the  parties  hereto  hereby  agree as
follows:


                                    ARTICLE I

                                    THE OFFER

                  SECTION 1.01 The Offer.  (a) Provided  that nothing shall have
occurred that, had the Offer referred to below been  commenced,  would give rise
to a right to terminate the Offer under any of the conditions set forth in Annex
I hereto,  Acquisition  shall, as promptly as practicable after the date hereof,
but in no event later than five business days following the public  announcement
of the terms of this Agreement,  commence an offer (the "Offer") to purchase all
of the  outstanding  shares (the "Shares" of Company  Common Stock at a price of
$20.25  per  Share,  net to the  seller  in cash  (or at such  higher  price  as
Acquisition,  in its sole  discretion,  elects to  offer),  but  subject  to any
withholding  required by law. The Offer shall be subject to the  condition  that
there shall be validly  tendered prior to the  expiration  date of the Offer and
not  withdrawn  a number  of  Shares  representing  at least  51% of the  Shares
outstanding on a fully diluted basis (the "Minimum  Condition") and to the other
conditions set forth in Annex I hereto.  For purposes of determining the Minimum
Condition,  (i) Shares  tendered  subject to  guaranteed  delivery  shall not be
considered  validly tendered unless and until delivery shall have been completed
and (ii) Shares out-





<PAGE>



standing on a  fully-diluted  basis shall mean all Shares  actually  outstanding
plus  all  Shares   issuable   upon   exercise,   conversion   or   exchange  of
then-outstanding  options,  warrants  and  other  rights to  purchase,  or other
securities convertible into or exchangeable for, Company Common Stock, including
any Shares  issuable  pursuant to the Company Stock Purchase Plan or the Company
Stock  Option  Plan (each as defined in  Section  3.05).  Acquisition  expressly
reserves the right to waive the Minimum Condition or any of the other conditions
to the Offer and to make any  change in the terms or  conditions  of the  Offer;
provided that no change may be made that changes the form of consideration to be
paid or  decreases  the price per  Share or the  number of Shares  sought in the
Offer or which imposes conditions to the Offer in addition to those set forth in
Annex I.

                  (b) As soon as practicable on the date of  commencement of the
Offer,  Acquisition  shall  file with the  Securities  and  Exchange  Commission
("SEC") a Tender  Offer  Statement  on Schedule  14D-1 with respect to the Offer
which will  contain  the offer to  purchase  and form of the  related  letter of
transmittal  (together with any supplements or amendments thereto,  collectively
the "Offer  Documents").  Acquisition  and the Company  each agrees  promptly to
correct any information  provided by it for use in the Offer Documents if and to
the  extent  that it shall  have  become  false or  misleading  in any  material
respect.  Acquisition  agrees  to take all  steps  necessary  to cause the Offer
Documents  as so corrected  to be filed with the SEC and to be  disseminated  to
holders of  Shares,  in each case as and to the extent  required  by  applicable
federal securities laws. The Company and its counsel shall be given a reasonable
opportunity  to review and comment on the Offer  Documents  prior to their being
filed with the SEC.

                  SECTION 1.02 Company  Action.  (a) The Company hereby consents
to the  Offer and  represents  that its Board of  Directors,  at a meeting  duly
called and held,  has (i)  unanimously  determined  that this  Agreement and the
transactions contemplated hereby, including the Offer and the Merger (as defined
in  Section  2.01),  are  fair  to and in the  best  interest  of the  Company's
stockholders,  (ii)  unanimously  approved this  Agreement and the  transactions
contemplated  hereby,  including  the  Offer  and  the  Merger,  which  approval
constituted approval of the Offer, the Merger and this Agreement for purposes of
Sections  203 and 251 of the  General  Corporation  Law of the State of Delaware
(the "Delaware GCL"), and (iii) unanimously  resolved to recommend acceptance of
the Offer and  approval  and  adoption of this  Agreement  and the Merger by its
stockholders.  The Company further represents that Cowen & Company has delivered
to the Company's  Board of Directors its written opinion that, as of the date of
such opinion,  the  consideration to be paid in the Offer and the Merger is fair
to the holders of Shares (other than Parent and its affiliates) from a financial
point of view.  The  Company  has been  advised  that all of its  directors  and
executive officers intend either to tender




                                        2

<PAGE>



their  Shares  pursuant  to the  Offer or to vote in favor  of the  Merger.  The
Company  will  promptly  furnish  Acquisition  with a list of its  stockholders,
mailing labels and any available  listing or computer file  containing the names
and addresses of all record holders of Shares and lists of securities  positions
of Shares  held in stock  depositories,  in each case true and correct as of the
most recent  practicable  date, and will provide to Acquisition  such additional
information  (including,  without  limitation,  updated  lists of  stockholders,
mailing labels and lists of securities  positions) and such other  assistance as
Acquisition may reasonably request in connection with the Offer.

                  (b)      As soon as practicable on the day that the Offer
is commenced,  the Company will file with the SEC a  Solicitation/Recommendation
Statement on Schedule  14D-9 (the  "Schedule  14D- 9"),  which shall reflect the
recommendations  of the  Company's  Board of  Directors  referred to above.  The
Company and Acquisition each agree promptly to correct any information  provided
by it for use in the  Schedule  14D-9 if and to the  extent  that it shall  have
become false or misleading in any material  respect.  The Company agrees to take
all steps necessary to cause the Schedule 14D-9 as so corrected to be filed with
the SEC and to be disseminated to holders of Shares,  in each case as and to the
extent required by applicable federal  securities laws. Parent,  Acquisition and
their  counsel  shall be given an  opportunity  to  review  and  comment  on the
Schedule 14D-9 prior to its being filed with the SEC.

                  SECTION 1.03 Directors.  (a) Effective upon the acceptance for
payment by Acquisition  of, and deposit by  Acquisition  with the depositary for
the Offer of funds sufficient to make payment for, a majority of the outstanding
Shares  pursuant to the Offer,  Acquisition  shall be entitled to designate  the
number of directors, rounded up to the next whole number, on the Company's Board
of Directors that equals the product of (i) the total number of directors on the
Company's  Board of Directors  (giving  effect to the election of any additional
directors  pursuant to this Section) and (ii) the percentage  that the number of
Shares owned by Acquisition (including Shares accepted for payment and for which
deposit  has  been  made as  aforesaid)  bears to the  total  number  of  Shares
outstanding,   and  the  Company  shall  take  all  action  necessary  to  cause
Acquisition's  designees to be elected or appointed  to the  Company's  Board of
Directors, including, without limitation, increasing the number of directors and
seeking and accepting  resignations of incumbent  directors.  At such times, the
Company will use its best efforts to cause individuals designated by Acquisition
to constitute the same percentage as such individuals represent on the Company's
Board of Directors of (A) each  committee of the Board (other than any committee
of the Board established to take action under this Agreement), (B) each board of
directors of each Subsidiary (as defined in Section 3.02) and (C) each committee
of each such




                                        3

<PAGE>



board.  Notwithstanding the foregoing,  at all times prior to the Effective Time
the Board shall  include at least two  directors in office as of the date hereof
who are not employees of the Company or any of its subsidiaries or affiliates of
Parent or Acquisition (any such director remaining in office being a "Continuing
Director").

                  (b) The  Company's  obligations  to appoint  designees  to the
Board of  Directors  shall be subject to Section  14(f) of the  Exchange Act (as
defined in Section  3.06) and Rule 14f-1  promulgated  thereunder.  The  Company
shall  promptly  take all actions  required  pursuant to Section  14(f) and Rule
14f-1 in order to fulfill its  obligations  under this Section and shall include
in the  Schedule  14D-9 such  information  with  respect to the  Company and its
officers and  directors  as is required  under  Section  14(f) and Rule 14f-1 to
fulfill its obligations under this Section 1.03.  Acquisition will supply to the
Company in writing and be solely responsible for any information with respect to
itself and its nominees,  officers, directors and affiliates required by Section
14(f) and Rule 14f-1.


                                   ARTICLE II

                                   THE MERGER

                  SECTION 2.01 The Merger. As promptly as reasonably practicable
after  consummation  of the Offer,  subject to the terms and  conditions of this
Agreement,  at the Effective Time (as hereinafter  defined),  in accordance with
this Agreement and the Delaware GCL,  Acquisition  shall be merged with and into
the Company (the "Merger"),  the separate existence of Acquisition (except as it
may be  continued  by  operation  of law) shall  cease,  and the  Company  shall
continue as the surviving corporation.

                  SECTION 2.02 Effect of the Merger.  Upon the  effectiveness of
the Merger, the Surviving Corporation shall succeed to and assume all the rights
and  obligations of the Company and  Acquisition in accordance with the Delaware
GCL and the Merger shall  otherwise have the effects set forth in Section 259 of
the Delaware GCL.

                  SECTION  2.03   Consummation   of  the  Merger.   As  soon  as
practicable   after  the  satisfaction  or  waiver  of  the  conditions  to  the
obligations of the parties to effect the Merger set forth herein,  provided that
this Agreement has not been terminated previously, the parties hereto will cause
the Merger to be  consummated by filing with the Secretary of State of the State
of Delaware a properly  executed  certificate  of merger in accordance  with the
Delaware GCL,  which shall be effective upon filing or on such later date as may
be  specified  therein  (the time of such  effectiveness  being  the  "Effective
Time").




                                        4

<PAGE>




                  SECTION 2.04 Certificate of Incorporation;  By-Laws; Directors
and Officers.  The Certificate of  Incorporation of Acquisition in effect at the
Effective  Time  shall be the  Certificate  of  Incorporation  of the  Surviving
Corporation,  until thereafter amended in accordance with the provisions thereof
and as provided by the Delaware GCL. The By-Laws of Acquisition in effect at the
Effective  Time  shall  be the  By-Laws  of  the  Surviving  Corporation,  until
thereafter amended in accordance with the provisions thereof and the Certificate
of  Incorporation  of the Surviving  Corporation and as provided by the Delaware
GCL. From and after the Effective Time and until their respective successors are
duly elected or appointed and qualified, (a) the directors of Acquisition at the
Effective Time shall be the directors of the Surviving  Corporation  and (b) the
officers  of the  Company at the  Effective  Time shall be the  officers  of the
Surviving Corporation.

                  SECTION 2.05 Conversion of Securities. By virtue of the Merger
and  without  any action on the part of either  Constituent  Corporation  or any
holder of the capital stock thereof, at the Effective Time:

                           (a) Each share of Common  Stock,  $.01 par value,  of
         Acquisition  issued and outstanding  immediately prior to the Effective
         Time shall be converted into and become one validly issued,  fully paid
         and nonassessable share of Common Stock of the Surviving Corporation;

                           (b) Each share of Company  Common  Stock that is held
         in the  treasury  of the  Company or of any  Subsidiary,  or by Parent,
         Acquisition or any of their subsidiaries, shall be canceled and retired
         and no consideration  shall be paid or delivered in exchange  therefor;
         and

                           (c) Each  remaining  share of  Company  Common  Stock
         issued and outstanding  immediately  prior to the Effective Time (other
         than Dissenting  Shares, as defined in Section 2.08) shall be converted
         into the right to receive an amount in cash, without interest, equal to
         the  $20.25 or any  higher  price paid for each Share in the Offer (the
         "Merger Consideration").

                  SECTION  2.06  Stock  Options.  (a)  All  stock  options  out-
standing at the  Effective  Time under the Company Stock Option Plan (as defined
in Section  3.05)  shall,  whether or not  exercisable  or vested,  become fully
exercisable  and  vested,  and each  holder  of an  option  thereunder  shall be
entitled to receive from the Company,  as of the Effective  Time, for each share
of Company  Common Stock subject to an option an amount in cash in  cancellation
of such option equal to the excess, if any, of the Merger Consideration over the
per share exercise price of such option, subject to applicable  withholding,  if
any. The Company Stock Option Plan




                                        5

<PAGE>



and all options issued and outstanding  thereunder shall terminate  effective as
of the Effective Time.

                  (b)  Immediately  prior to the  Effective  Time,  all  options
outstanding  under the Company Stock  Purchase Plan (as defined in Section 3.05)
shall become  exercisable  to the extent of payroll  deductions  accumulated  by
participants  as of such  date,  and each  participant  shall be  deemed to have
purchased  the  number  of whole  Shares  subject  to the  options  held by such
participant  at a per Share price  determined  pursuant to the provisions of the
Company Stock Purchase Plan, and each  participant  shall receive a cash payment
equal to the balance, if any, of such accumulated  payroll deductions  remaining
after the  deemed  purchase  of such  Shares.  As of the  Effective  Time,  each
participant  shall  receive,  for each Share such  participant is deemed to have
purchased,  the Merger  Consideration.  The Company Stock  Purchase Plan and all
options issued and outstanding  thereunder  shall terminate  effective as of the
Effective Time.

                  SECTION  2.07 Payment for Shares.  (a) Prior to the  Effective
Time,  Parent shall  designate a bank or trust company to act as exchange  agent
(the "Exchange Agent") for the purpose of exchanging  certificates  representing
Shares  for  the  Merger  Consideration.  At  the  Effective  Time,  Parent  and
Acquisition  shall cause such funds as are  required for the  conversion  of the
Shares pursuant to Section 2.05(c) hereof (the "Exchange  Fund") to be deposited
with the Exchange Agent.

                  (b)  Promptly   after  the  Effective   Time,   the  Surviving
Corporation  shall  instruct the Exchange Agent to mail to each holder of record
of one or more  shares of Company  Common  Stock,  (i) a letter of  transmittal,
which shall specify that delivery shall be effected,  and risk of loss and title
to the  certificates  that  immediately  prior to the Effective Time represented
outstanding Shares (each, a "Certificate") shall pass, only upon proper delivery
of the  Certificate  to the  Exchange  Agent and have such other  provisions  as
Parent shall specify,  and (ii)  instructions for use in effecting the surrender
of the Certificates in exchange for Merger  Consideration.  Until surrendered as
contemplated by this Section 2.07, each Certificate  shall be deemed at any time
after the  Effective  Time to  represent  only the right to  receive  the Merger
Consideration. No interest will be paid or accrued on the Merger Consideration.

                  (c) Upon surrender of a Certificate  for  cancellation  to the
Exchange  Agent,  together  with such letter of  transmittal,  duly executed and
completed in accordance with the instructions  thereto, and such other documents
as may  reasonably  be  required  by the  Exchange  Agent,  the  holder  of such
Certificate  shall be  entitled  to  receive  in  exchange  therefor  the Merger
Consideration  payable in respect of the Shares  previously  represented by such
Certificate, after giving effect to any applicable withholding




                                        6

<PAGE>



tax, and the Certificate so surrendered shall forthwith be canceled.

                  (d) If Merger  Consideration is to be paid to any person other
than the  person in whose  name the  Certificates  for  Shares  surrendered  for
conversion  are  registered,  it shall be a condition  of the payment  that such
Certificates be properly endorsed and the signatures thereon properly guaranteed
and  otherwise in proper form for transfer and that the person  requesting  such
payment shall pay to the Exchange  Agent any transfer or other taxes required by
reason  of the  delivery  of Merger  Consideration  to a person  other  than the
registered holder of such Certificate, or shall establish to the satisfaction of
the Exchange Agent that such tax has been paid or is not applicable.

                  (e) Any  portion  of the  Exchange  Fund held by the  Exchange
Agent for delivery pursuant to this Section 2.07 and unclaimed at the end of six
months after the Effective Time shall be repaid or  redelivered to Parent,  upon
demand,  and any holders of Certificates who have not theretofore  complied with
this Section 2.07 shall,  subject to applicable law, thereafter look only to the
Surviving Corporation for payment of the Merger Consideration in respect of such
holders' Shares.  Notwithstanding  the foregoing,  none of Parent, the Surviving
Corporation  or the  Exchange  Agent  shall be liable to any holder of Shares of
Company  Stock  for  any  amount  paid  to a  public  official  pursuant  to any
applicable abandoned property,  escheat or similar law. Any amounts unclaimed by
holders of Shares  two years  after the  Effective  Time (or such  earlier  date
immediately  prior to such time as such amounts  would  otherwise  escheat to or
become the property of any  governmental  entity) shall, to the extent permitted
by applicable  law,  become the property of the Surviving  Corporation  free and
clear of any claims or interest of any person previously entitled thereto.

                  (f) The  Exchange  Agent shall invest any cash in the Exchange
Fund, as directed by Parent,  in (i) direct  obligations of the United States of
America,  (ii)  obligations  for which the full  faith and  credit of the United
States of  America  is pledged to  provide  for the  payment  of  principal  and
interest or (iii) commercial paper rated, at the time of purchase,  in either of
the two highest quality  categories by both Moody's Investors  Services Inc. and
Standard & Poor's Ratings Group,  a division of  McGraw-Hill,  Inc., and any net
earnings with respect  thereto shall be paid to Parent as and when  requested by
Parent.  In the  event  the  Exchange  Fund  shall  realize  a loss on any  such
investment,  Parent shall promptly  thereafter deposit in the Exchange Fund cash
in an amount  sufficient  to enable the Exchange  Fund to satisfy all  remaining
obligations originally contemplated to be paid out of the Exchange Fund.





                                        7

<PAGE>



                  (g) At and after the Effective  Time, the stock transfer books
of the Company shall be closed,  and there shall be no further  registrations of
transfers  of shares of Company  Common Stock  thereafter  on the records of the
Company.  If,  after the  Effective  Time,  Certificates  are  presented  to the
Surviving  Corporation,  Parent or the Exchange Agent for any reason, they shall
be canceled and exchanged for Merger  Consideration  as provided in this Section
2.07.

                  SECTION 2.08 Dissenting  Shares.  Notwithstanding  anything in
this Agreement to the contrary, Shares that are outstanding immediately prior to
the  Effective  Time and that are held by  stockholders  who have not voted such
Shares in favor of the  approval and  adoption of this  Agreement  and who shall
have  delivered  a written  demand for  appraisal  of such  shares in the manner
provided in Section 262 of the Delaware GCL  ("Dissenting  Shares") shall not be
converted into the right to receive the Merger Consideration, but the holders of
such Shares shall be entitled to payment of the  appraised  value of such Shares
in accordance with the provisions of Section 262 of the Delaware GCL;  provided,
however,  that (i) if any holder of Dissenting Shares shall subsequently deliver
a written  withdrawal of such holder's demand for appraisal of such shares (with
the written  approval of the Surviving  Corporation,  if such  withdrawal is not
tendered  within 60 days after the Effective  Time), or (ii) if any holder fails
to perfect or loses such holder's appraisal rights as provided in Section 262 of
the Delaware  GCL, or (iii) if any holder of  Dissenting  Shares fails to demand
payment within the time period provided in Section 262 of the Delaware GCL, such
holder shall forfeit the right to appraisal of such shares and such shares shall
thereupon be deemed to have been converted  into, as of the Effective  Time, the
right to receive the Merger  Consideration,  without any interest  thereon.  The
Company  shall give  Acquisition  prompt  notice of any demands  received by the
Company for  appraisal  of Shares,  and the Company  shall not,  except with the
written consent of  Acquisition,  make any payment with respect to, or settle or
offer to settle, any such demands.

                  SECTION 2.09  Dissenting  Shares After  Payment of Fair Value.
Dissenting  Shares,  if any,  shall be canceled  after payments of fair value in
respect  thereto  have  been  made to  dissenting  stockholders  of the  Company
pursuant to the Delaware GCL.






                                        8

<PAGE>



                                   ARTICLE III

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                  The Company  represents and warrants to Parent and Acquisition
as follows:

                  SECTION 3.01 Organization and Qualification.  The Company is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has all requisite  corporate power and authority to
own or lease and operate its  properties and assets and to carry on its business
as it is now  being  conducted.  The  Company  is duly  qualified  as a  foreign
corporation to do business,  and is in good standing,  in each  jurisdiction  in
which the  character  of its  properties  owned or  leased or the  nature of its
activities makes such qualification necessary, except where the failure to be so
qualified would not reasonably be expected to have a Material Adverse Effect (as
hereinafter  defined) on the Company. As used herein,  "Material Adverse Effect"
shall  mean,  with  respect  to any  party,  a  material  adverse  effect on the
business,  assets,  condition  (financial or other) or operating results of such
party and its subsidiaries, taken as a whole.

                  SECTION  3.02  Subsidiaries.  (a)  Except  for  shares  of the
Subsidiaries (as hereinafter  defined),  and except as set forth in Section 3.02
of the Disclosure Schedule delivered by the Company to Parent and Acquisition on
the date hereof (the "Disclosure Schedule"),  the Company does not own of record
or beneficially,  directly or indirectly,  (i) any shares of outstanding capital
stock or securities  convertible into capital stock of any other  corporation or
(ii) any  participating  interest  in any  partnership,  joint  venture or other
non-corporate  business  enterprise.  Each  Subsidiary  is  a  corporation  duly
organized,  validly  existing  and  in  good  standing  under  the  laws  of its
jurisdiction  of  incorporation  and  has  all  requisite  corporate  power  and
authority  to own or  lease  and  operate  its  properties  and to  carry on its
business as it is now being  conducted.  Each  Subsidiary is duly qualified as a
foreign  corporation  to  do  business,   and  is  in  good  standing,  in  each
jurisdiction  in which the  character of its  properties  owned or leased or the
nature of its activities makes such  qualification  necessary,  except where the
failure to be so qualified  would not  reasonably be expected to have a Material
Adverse Effect on the Company. Each Subsidiary and its jurisdiction of formation
is identified in Section 3.02 of the Disclosure Schedule.

                  (b)  Except as set  forth in  Section  3.02 of the  Disclosure
Schedule,  all the  outstanding  shares of capital stock of each  Subsidiary are
validly issued,  fully paid and nonassessable and are owned by the Company or by
a wholly-owned  Subsidiary of the Company,  free and clear of any liens, claims,
charges, encum-




                                        9

<PAGE>



brances or adverse claims, and there are no proxies  outstanding or restrictions
on voting with respect to any such shares.

                  (c) For  purposes  of this  Agreement,  the term  "Subsidiary"
shall mean any corporation or other business entity of which securities or other
ownership  interests  having  ordinary  voting  power to elect a majority of the
board of directors or other persons performing similar functions are at the time
owned by the Company and/or one or more other Subsidiaries.

                  SECTION 3.03 Authority Relative to Agreement.  The Company has
all  requisite  corporate  power and  authority  to  execute  and  deliver  this
Agreement and to perform its obligations hereunder. The execution,  delivery and
performance of this Agreement by the Company and the  consummation  by it of the
transactions  contemplated  hereby have been duly  authorized  by the  Company's
Board  of  Directors,  and no  other  corporate  proceedings  on the part of the
Company  are  necessary  to  authorize  this  Agreement  and  the   transactions
contemplated hereby, other than the approval and adoption of this Agreement by a
majority  of the  stockholders  of the  Company.  This  Agreement  has been duly
executed and delivered by the Company and, subject to such stockholder approval,
constitutes the legal, valid and binding obligation of the Company,  enforceable
against the Company in accordance with its terms.

                  SECTION 3.04 Non-Contravention. Except as set forth in Section
3.04 of the Disclosure Schedule, the execution and delivery of this Agreement by
the  Company do not and the  consummation  by the  Company  of the  transactions
contemplated  hereby will not (i) conflict with any provision of the Amended and
Restated  Certificate of  Incorporation  or By-Laws of the Company;  (ii) result
(with the giving of notice or the lapse of time or both) in any  violation of or
default or loss of a benefit under, or permit the acceleration of any obligation
under, any mortgage,  indenture,  lease, agreement or other instrument,  permit,
concession,  grant, franchise,  license,  judgment, order, decree, statute, law,
ordinance,  rule or regulation  applicable  to the Company or any  Subsidiary or
their  respective  properties;  or (iii) result in the creation or imposition of
any lien,  charge or encumbrance of any nature  whatsoever upon any asset of the
Company or any  Subsidiary;  other than (in the cases of clauses  (ii) and (iii)
above)  such  as  would  not  reasonably  be  expected,  individually  or in the
aggregate, to have a Material Adverse Effect on the Company.

                  SECTION 3.05  Capitalization.  The authorized capital stock of
the Company consists of (i) 50,000,000  shares of Company Common Stock, and (ii)
5,000,000 shares of preferred stock, $.01 par value ("Preferred  Stock").  As of
July 7,  1997,  12,622,359  shares  of  Company  Common  Stock  are  issued  and
outstanding,  all of  which  were  duly  and  validly  issued,  fully  paid  and
nonassessable,




                                       10

<PAGE>



and no  shares of  Preferred  Stock are  outstanding  or have ever been  issued.
Except for options to purchase an aggregate  1,688,490  shares of Company Common
Stock granted pursuant to the Company's 1992 Equity Incentive Plan (the "Company
Stock Option Plan"), and options to purchase, depending on the extent of payroll
deductions,  up to an aggregate  65,000  shares of Company  Common Stock granted
pursuant to the Company's  1993 Employee Stock Purchase Plan (the "Company Stock
Purchase Plan"), no subscription,  warrant, option,  convertible security, stock
appreciation or other right (contingent or other) to purchase or acquire, or any
securities  convertible  into or  exchangeable  for,  any shares of any class of
capital stock of the Company or any Subsidiary is authorized or outstanding  and
there is not any  commitment  of the  Company  or any  Subsidiary  to issue  any
shares,  warrants,  options or other such rights or to  distribute to holders of
any class of its capital stock any evidences of indebtedness or assets.  Neither
the Company  nor any  Subsidiary  has any  obligation  (contingent  or other) to
purchase,  redeem or  otherwise  acquire any shares of its capital  stock or any
interest  therein  or to pay any  dividend  or make any  other  distribution  in
respect thereof.

                  SECTION 3.06 SEC  Filings.  The Company has provided to Parent
and  Acquisition  true and  complete  copies of (i) the  Annual  Reports  of the
Company on Form 10-K for the years ended December 31, 1994,  1995 and 1996, (ii)
the  Quarterly  Report of the  Company on Form 10-Q for the three  months  ended
March 31, 1997, (iii) its proxy or information  statements  relating to meetings
of, or actions taken without a meeting by, the stockholders of the Company since
January  1,  1994,  and (iv) all  other  reports,  statements  and  registration
statements   filed  by  the  Company   with  the  SEC  since   January  1,  1994
(collectively,  the "Company SEC Filings").  The Company SEC Filings (including,
without limitation,  any financial statements or schedules included therein) (i)
were prepared in compliance with the requirements of the Securities Act of 1933,
as amended (the  "Securities  Act") or the  Securities  Exchange Act of 1934, as
amended (the "Exchange  Act"), as the case may be, in all material  respects and
(ii) did not at the time of filing (or if amended, supplemented or superseded by
a filing  prior to the date  hereof,  on the date of that  filing)  contain  any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary in order to make the statements  therein,  in the
light of the circumstances  under which they were made, not misleading.  None of
the Subsidiaries is required to file any forms,  reports or other documents with
the SEC.

                  SECTION 3.07 Financial Statements.  The consolidated financial
statements of the Company included in the Company SEC Filings have been prepared
in accordance with generally accepted accounting principles consistently applied
and consistent  with prior periods,  subject,  in the case of unaudited  interim
consoli-




                                       11

<PAGE>



dated financial  statements,  to year-end  adjustments  (which consist of normal
recurring  accruals)  and the  absence  of  certain  footnote  disclosures.  The
consolidated  balance sheets of the Company  included in the Company SEC Filings
fairly  present in all material  respects the financial  position of the Company
and the Subsidiaries as of their respective dates, and the related  consolidated
statements of  operations,  stockholders'  equity and cash flows included in the
Company SEC  Filings  fairly  present in all  material  respects  the results of
operations of the Company and the Subsidiaries  for the respective  periods then
ended,  subject,  in the case of  unaudited  interim  financial  statements,  to
year-end  adjustments  (which  consist  of normal  recurring  accruals)  and the
absence of certain footnote disclosures.

                  SECTION 3.08 Absence of Certain  Changes or Events.  Except as
set forth in Section 3.08 of the Disclosure  Schedule,  since December 31, 1996,
neither the Company nor any Subsidiary has (i) issued any stock,  bonds or other
corporate securities, (ii) borrowed any material amount or incurred any material
liabilities (absolute or contingent), except in the ordinary course of business,
(iii) discharged or satisfied any material lien or incurred or paid any material
obligation or liability  (absolute or contingent) other than current liabilities
shown on the  consolidated  balance sheet of the Company and the Subsidiaries as
of December  31, 1996 and current  liabilities  incurred  since the date of such
balance  sheet in the  ordinary  course of business,  (iv)  declared or made any
payment or  distribution  to stockholders or purchased or redeemed any shares of
its capital stock or other  securities,  (v) mortgaged,  pledged or subjected to
lien any of its material  assets,  tangible or intangible,  other than liens for
current  real  property   taxes  not  yet  due  and  payable  (and  liens  that,
individually and in the aggregate,  could not materially impair the use or value
of the assets subject  thereto),  (vi) sold,  assigned or transferred any of its
tangible assets, or canceled any debts or claims,  except in the ordinary course
of business,  in immaterial amounts or as otherwise  contemplated  hereby, (vii)
sold, assigned or transferred any patents,  trademarks, trade names, copyrights,
trade secrets or other intangible assets,  (viii) made any changes in officer or
executive compensation, (ix) agreed, in writing or otherwise, to take any of the
actions  listed in clauses (i) through  (viii) above,  (x) suffered any Material
Adverse Effect or waived any rights of substantial value,  whether or not in the
ordinary course of business, or (xi) entered into any transaction, except in the
ordinary course of business or as otherwise  contemplated  hereby;  which,  with
respect to any of the above,  was or would reasonably be expected to be material
to any of the three business  segments  described in the Company's annual report
to  stockholders  for the year  ended  December  31,  1996  (each,  a  "Business
Segment").

                  SECTION 3.09  Governmental  Approvals.  No consent,  approval,
order or authorization of, or registration, declaration




                                       12

<PAGE>



or filing with, any federal,  state, local or foreign governmental or regulatory
authority is required to be made or obtained by the Company in  connection  with
the execution and delivery of this Agreement by the Company or the  consummation
by  the  Company  of  the  transactions  contemplated  hereby,  except  for  (i)
compliance by the Company with the Hart-Scott-Rodino  Antitrust Improvements Act
of 1976 (the "HSR Act"), (ii) filings pursuant to the Exchange Act and the rules
and regulations  promulgated by the SEC thereunder,  as contemplated by Sections
1.02 and 6.02  hereof,  (iii) the  filing of a  certificate  of merger  with the
Secretary of State of the State of Delaware in accordance with the Delaware GCL,
(iv) such as are listed in Section 3.09 of the Disclosure  Schedule and (v) such
consents,  approvals,  orders  or  authorizations  which  if  not  obtained,  or
registrations,  declarations or filings which if not made,  would not materially
adversely  affect the  ability of the  Company to  consummate  the  transactions
contemplated hereby or the ability of the Surviving  Corporation or any Business
Segment to conduct  its  business  after the  Effective  Time  substantially  as
currently conducted by the Company or such Business Segment.

                  SECTION  3.10  Compliance  with  Laws.  Except as set forth in
Section 3.10 of the Disclosure Schedule,  neither the Company nor any Subsidiary
is in default  under or in  violation  of any order of any  court,  governmental
authority  or  arbitration  board or  tribunal  to  which  the  Company  or such
Subsidiary  is  or  was  subject  or  in  violation  of  any  laws,  ordinances,
governmental rules or regulations (including, but not limited to, those relating
to export controls,  labor and employment matters and foreign corrupt practices)
to which the  Company  or any  Subsidiary  is or was  subject,  except  for such
defaults or violations that, in the aggregate,  would not reasonably be expected
to have a Material  Adverse  Effect.  Except as set forth in said Section  3.10,
neither  the  Company  nor any  Subsidiary  has failed to obtain  any  licenses,
permits,  franchises  or  other  governmental  authorizations  necessary  to the
ownership of its  properties  or to the conduct of its  business,  which failure
would  reasonably  be expected to have a Material  Adverse  Effect,  and,  after
giving  effect  to the  transactions  contemplated  hereby,  all such  licenses,
permits,  franchises and other governmental  authorizations  will continue to be
valid and in full  force and  effect,  except  where  the  failure  to have such
licenses,  permits,  franchises and other governmental  authorizations would not
reasonably be expected to have a Material Adverse Effect on the Company.

                  SECTION 3.11 Disclosure Documents.  (a) Each document required
to be filed by the  Company  with the SEC in  connection  with the  transactions
contemplated  hereby   (collectively,   the  "Company  Disclosure   Documents"),
including,  without  limitation,  the Schedule  14D-9,  the Proxy  Statement (as
defined in Section 6.03  hereof),  if any,  and any  amendments  or  supplements
thereto




                                       13

<PAGE>



will,  when  filed,  comply  as to  form  in  all  material  respects  with  the
requirements of the Exchange Act.

                  (b) The Proxy  Statement  (as defined in Section  6.02 hereof)
will not (i) at the time it or any  amendment or  supplement  is first mailed to
stockholders of the Company,  at the time such  stockholders vote on adoption of
this  Agreement and at the  Effective  Time,  contain any untrue  statement of a
material  fact or  omit  to  state  any  material  fact  necessary  to make  the
statements  therein,  in light of the circumstances  under which they were made,
not misleading or (ii) at the time of such  stockholder vote or at the Effective
Time,  omit any  information  necessary to correct any statement that has become
materially false or misleading in any earlier  communication with respect to the
solicitation  of any proxy for such  meeting.  At the time of the  filing of any
Company  Disclosure  Document other than the Proxy  Statement and at the time of
distribution  thereof,  such Company  Disclosure  Document  will not contain any
untrue statement of a material fact or omit to state any material fact necessary
to make the statements  therein,  in light of the circumstances under which they
were made, not misleading.  Notwithstanding the foregoing,  no representation is
made  by  the  Company  with  respect  to  information  supplied  by  Parent  or
Acquisition  specifically  for  inclusion  in the Proxy  Statement  or any other
Company Disclosure Document that relates to Parent or any affiliate or associate
of Parent.

                  (c)  The  information  with  respect  to  the  Company  or any
Subsidiary that the Company furnishes to Parent in writing  specifically for use
in the Offer Documents,  or that is incorporated  therein by reference to any of
the  Company  SEC  Filings,  will  not,  at the time of the  filing of the Offer
Documents,  at the  time  of any  distribution  thereof  and at the  time of the
consummation  of the Offer,  contain any untrue  statement of a material fact or
necessary to make the statements  therein,  in light of the circumstances  under
which they were made, not misleading.

                  SECTION 3.12  Litigation.  Except as set forth in Section 3.12
of the Disclosure Schedule, there is no action, suit, investigation,  proceeding
or claim  pending or, to the  knowledge  of the Company,  threatened  against or
affecting  the Company or any  Subsidiary,  or their  respective  properties  or
rights,  before any governmental body or arbitration  board or tribunal,  either
alone or  together  with other  similar  actions,  the  outcome  of which  would
reasonably be expected to have a Material Adverse Effect on the Company.

                  SECTION  3.13  Software.  (a)  Except as set forth in  Section
3.13(a) of the Disclosure Schedule, the Company and each of the Subsidiaries has
valid licenses to all copies of all software that is not owned by it and is used
by it in connection with the conduct of its business  ("Third Party  Software"),
and




                                       14

<PAGE>



the  use by the  Company  or  such  Subsidiary  of such  Third  Party  Software,
including without limitation all modifications and enhancements thereto (whether
or not created by the  Company),  complies  with such  license  (except for such
noncompliance  as could not,  individually  or in the  aggregate,  be reasonably
expected to have a Material Adverse Effect on the Company).  Except as set forth
in Section 3.13(a) of the Disclosure Schedule, the Company owns all right, title
and interest in and to all software  marketed or licensed by the Company and the
Subsidiaries  to customers or held for use or in  development  for marketing and
licensing to customers (collectively, the "Proprietary Software").

                  (b) Except as set forth in Section  3.13(b) of the  Disclosure
Schedule,  to the  Company's  knowledge,  none of the Third  Party  Software  or
Proprietary  Software,  no use thereof by the Company or any Subsidiary,  and no
permitted  use thereof by any  licensee  infringes  upon or violates any patent,
copyright,  trade secret or other  intellectual  property right of any person or
entity.  No claim or demand with respect to any such  infringement  or violation
has been made or, to the knowledge of the Company, threatened.

                  (c) To the  knowledge of the Company,  there are no viruses in
the Proprietary  Software and there are no defects in the  Proprietary  Software
that would prevent such software  from  performing in all material  respects the
tasks and  functions  that it was  intended to perform  except those that can be
cured without a Material Adverse Effect on the Company.

                  SECTION  3.14 Trade  Secrets.  No third  party has  claimed or
notified the Company or any Subsidiary  that any person employed by or otherwise
affiliated  with the  Company or any  Subsidiary  has,  in respect of his or her
activities  to  date,  violated  any of the  terms or  conditions  of his or her
employment  contract  with any third  party,  or disclosed or utilized any trade
secrets or  proprietary  information  or  documentation  of any third party,  or
interfered in the employment relationship between any third party and any of its
employees,  and to the  knowledge  of the  Company,  no  person  employed  by or
otherwise  affiliated  with the Company or any Subsidiary has employed any trade
secrets or any information or documentation  proprietary to any former employer,
or violated any  confidential  relationship  which such person may have had with
any third party,  in connection  with the development or sale of any products of
the Company or any Subsidiary.

                  SECTION 3.15  Severance  Arrangements.  Except as set forth in
Section 3.15 of the Disclosure Schedule,  neither the Company nor any Subsidiary
is  party  to any  agreement  with  any  employee  (i)  the  benefits  of  which
(including, without limitation, severance benefits) are contingent, or the terms
of which are materially altered, upon the occurrence of a transaction




                                       15

<PAGE>



involving the Company or any Subsidiary of the nature of any of the transactions
contemplated by this Agreement or (ii) providing severance benefits in excess of
those generally available under the Company's severance policies as in effect on
the  date  hereof  (which  are  described  in  Section  3.15  of the  Disclosure
Schedule),  or  which  are  conditioned  upon a change  of  control,  after  the
termination  of employment of such  employees  regardless of the reason for such
termination of employment. Except as set forth in Section 3.15 of the Disclosure
Schedule,  neither the Company nor any  Subsidiary is a party to any  employment
agreement or compensation  guarantee extending for a period longer than one year
from the date hereof.

                  SECTION 3.16 Taxes. (a) Except as set forth in Section 3.16 of
the  Disclosure  Schedule,  each  of  the  Company,  the  Subsidiaries  and  any
affiliated,  combined or unitary group of which any such corporation is or was a
member has (i) timely  filed all  Federal,  state,  local and  foreign  returns,
declarations, reports, estimates, information returns and statements ("Returns")
required  to be filed by it in  respect of any Taxes (as  hereinafter  defined),
which  Returns  correctly  reflect the facts  regarding  the  income,  business,
assets,  operations,  activities and status of the Company and the Subsidiaries,
(ii) timely paid or withheld  all Taxes that are due and payable with respect to
the Returns referred to in clause (i) (other than Taxes that are being contested
in good faith by appropriate  proceedings and are adequately reserved for in the
Company's most recent  consolidated  financial  statements  described in Section
3.07 hereof),  (iii)  established  reserves that are adequate for the payment of
all Taxes not yet due and payable with respect to the results of  operations  of
the  Company  and the  Subsidiaries  through  the date  hereof,  and (iv) to the
knowledge of the Company,  complied in all material respects with all applicable
laws, rules and regulations relating to the payment and withholding of Taxes and
has timely withheld from employee wages and paid over to the proper governmental
authorities all amounts required to be so withheld and paid over.

                  (b)  Except as set  forth in  Section  3.16 of the  Disclosure
Schedule, (i) there is no deficiency, claim, audit, action, suit, proceeding, or
investigation  now  pending  or, to the  knowledge  of the  Company,  threatened
against or with  respect  to the  Company  or any  Subsidiary  in respect of any
Taxes; and (ii) there are no requests for rulings or  determinations  in respect
of any Taxes  pending  between  the  Company  or any  Subsidiary  and any taxing
authority.

                  (c)  Except as set  forth in  Section  3.16 of the  Disclosure
Schedule,  neither the Company nor any  Subsidiary  has executed or entered into
(or prior to the  Effective  Time will  execute or enter into) with the Internal
Revenue  Service or any taxing  authority  (i) any  agreement or other  document
extending or having




                                       16

<PAGE>



the effect of extending  the period for  assessments  or collection of any Taxes
for  which  the  Company  or any  Subsidiary  would be  liable or (ii) a closing
agreement  pursuant to Section  7121 of the Internal  Revenue  Code of 1986,  as
amended  (the  "Code"),  or any  predecessor  provision  thereof or any  similar
provision  of  foreign,  state or local Tax law that  relates  to the  assets or
operations of the Company or any Subsidiary.

                  (d)  For   purposes  of  this   Agreement,   "Tax"  (and  with
correlative meaning,  "Taxes") shall mean all federal,  state, local, foreign or
other taxing authority net income, franchise,  sales, use, ad valorem, property,
payroll, withholding,  excise, severance, transfer,  employment,  alternative or
add-on minimum, stamp,  occupation,  premium,  environmental or windfall profits
taxes,  and other  taxes,  charges,  fees,  levies,  imposts,  customs,  duties,
licenses or other  assessments,  together  with any interest and any  penalties,
additions to tax or additional amounts imposed by any taxing authority.

                  SECTION 3.17 Employee  Benefit Plans.  (a) Except as set forth
in Section  3.17(a) of the  Disclosure  Schedule,  each of the  Company  and the
Subsidiaries  has  complied  and  currently  is in  compliance  in all  material
respects,  both as to form and operation,  with the applicable provisions of the
Employee  Retirement Income Security Act of 1974, as amended ("ERISA"),  and the
Code, with respect to each "employee benefit plan" as defined under Section 3(3)
of ERISA  ("Plan")  which the Company or any  Subsidiary  (i) has ever  adopted,
maintained,  established  or to  which  any of the same  has  been  required  to
contribute to or has ever  contributed or (ii)  currently  maintains or to which
any of the same  currently  contributes  or is required to  contribute  or (iii)
currently participates in or is required to participate in.

                  (b) Except as set forth in Section  3.17(b) of the  Disclosure
Schedule, neither the Company nor any Subsidiary has ever maintained, adopted or
established,  contributed  or been  required  to  contribute  to,  or  otherwise
participated in or been required to participate in, a  "multiemployer  plan" (as
defined in Section  3(37) of ERISA).  No amount is due or owing from the Company
or any of its  subsidiaries on account of a multiemployer  plan or on account of
any withdrawal therefrom.

                  (c) Notwithstanding anything else set forth herein, other than
routine  claims for  benefits  and  liability  for  premiums  due to the Pension
Benefit  Guaranty  Corporation and underfunded  pension  liabilities  previously
disclosed  to Parent,  neither the Company nor any  Subsidiary  has incurred any
material  liability  with respect to a Plan that is currently  due and owing and
has not yet been satisfied,  including without limitation under ERISA (including
without  limitation  Title I or Title IV thereof),  the Code or other applicable
law,  and,  to the  knowledge  of the  Company,  no event  has  occurred  and no
condition or set of cir-




                                       17

<PAGE>



cumstances currently exists (other than the accrual of benefits under the normal
terms of the  Plans),  that  would  reasonably  be  expected  to  result  in the
imposition  of any  material  liability  on the Company or any  Subsidiary  with
respect to a Plan,  including without  limitation under ERISA (including without
limitation Title I or Title IV of ERISA),  the Code or other applicable law with
respect to a Plan.

                  (d) Except as  required by  applicable  law or as set forth in
Section  3.17(d)  of the  Disclosure  Schedule,  neither  the  Company  nor  any
Subsidiary has committed itself,  orally or in writing,  (x) to provide or cause
to be  provided to any person any  payments or  provision  of any  "welfare"  or
"pension"  benefits (as defined in Sections  3(1) and 3(2) of ERISA) in addition
to, or in lieu of, those  payments or benefits set forth under any Plan,  (y) to
continue the payment of, or accelerate the payment of,  benefits under any Plan,
except  as  expressly  set forth  thereunder  or (z) to  provide  or cause to be
provided any severance or other  post-employment  benefit,  salary continuation,
termination,  disability,  death,  retirement,  health or medical benefit to any
person (including  without  limitation any former or current employee) except as
set forth under any Plan.

                  SECTION  3.18  Environmental  Matters.  The  Company  and each
Subsidiary   conducts  its  business  and  operations  in  compliance  with  all
applicable  environmental  laws,  ordinances  and  regulations,  and neither the
Company nor any  Subsidiary  has  received  notice of any claim,  action,  suit,
proceeding,  hearing or  investigation,  based on or related to the manufacture,
processing,  distribution,  use, treatment,  storage,  disposal,  transport,  or
handling,  or the emission,  discharge,  release or threatened  release into the
environment,  of any pollutant,  contaminant,  or hazardous or toxic material or
waste (collectively, an "Environmental Event") by the Company or any Subsidiary,
except for such as,  individually  or in the aggregate,  would not reasonably be
expected to have a Material  Adverse Effect on the Company.  To the knowledge of
the  Company,  no notice of any  Environmental  Event was given to any person or
entity that  occupied any of the premises  occupied by or used by the Company or
any  Subsidiary  prior to the  date  such  premises  were so  occupied.  Without
limiting  the  generality  of the  foregoing,  to the  knowledge of the Company,
neither the Company nor any  Subsidiary  has  disposed of or placed on or in any
property  or  facility  used in its  business  any  waste  materials,  hazardous
materials or hazardous substances in violation of law.

                  SECTION 3.19 Customer  Relationships.  Neither the Company nor
any Subsidiary has, since December 31, 1996, lost, or been notified that it will
lose or suffer  material  diminution  in, and to the knowledge of the Company no
representative  of any customer has notified the Company or any Subsidiary  that
in the event of a change of ownership of the Company such as contem-




                                       18

<PAGE>



plated by this  Agreement the Company or any  Subsidiary  would,  lose or suffer
material  diminution  in, its  relationship  with any customer or customers that
are,  individually or in the aggregate,  material to the Company or any Business
Segment.

                  SECTION 3.20 Certain Transactions.  Except as disclosed in the
Company SEC Filings or as set forth in Section 3.20 of the Disclosure  Schedule,
there are no existing or proposed material  transactions or arrangements between
the Company or any Subsidiary and (i) any person or entity  controlling or under
common  control  with the  Company or (ii)  Ceridian  Corporation  or any of its
subsidiaries or affiliates.

                  SECTION 3.21 State Takeover Statute Inapplicable. The Board of
Directors of the Company has approved the Offer,  the Merger  Agreement  and the
Merger in accordance with paragraph (a)(1) of Section 203 of the Delaware GCL.

                  SECTION 3.22  Brokers.  No person is entitled to any brokerage
or finder's fee or commission in connection with the  transactions  contemplated
by this  Agreement  as a  result  of any  action  taken by or on  behalf  of the
Company. Cowen & Company,  pursuant to an engagement letter dated June 20, 1997,
a copy of which has been  furnished  to Parent,  has  performed  services to the
Company and is entitled to compensation  from the Company in connection with the
transactions  contemplated  hereby,  including its fairness opinion with respect
thereto.



                                   ARTICLE IV

                    REPRESENTATIONS AND WARRANTIES OF PARENT

            Parent represents and warrants to the Company as follows:

                  SECTION 4.01 Organization and  Qualification.  (a) Parent is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware and has all requisite  corporate power and authority to
own or lease and operate its  properties and assets and to carry on its business
as it is now being conducted.  Parent is duly qualified as a foreign corporation
to do  business,  and is in good  standing,  in each  jurisdiction  in which the
character  of its  properties  owned or leased or the  nature of its  activities
makes such qualification necessary,  except where the failure to be so qualified
would not have a Material Adverse Effect on Parent.

                  (b)  Since  the  date  of its  incorporation,  Parent  has not
engaged in any activity other than in connection with or as contemplated by this
Agreement, the Offer and the Merger or in




                                       19

<PAGE>



connection  with arranging  financing  required to consummate  the  transactions
contemplated hereby.

                  SECTION 4.02 Authority  Relative to Agreement.  Parent has all
requisite  corporate  power and  authority to enter into this  Agreement  and to
perform its obligations  hereunder.  The execution,  delivery and performance of
this  Agreement  by Parent and the  consummation  by Parent of the  transactions
contemplated  hereby  have been duly  authorized  by the Board of  Directors  of
Parent,  and no other  corporate  proceedings on the part of Parent  (including,
without  limitation,  any action by its stockholders) are necessary to authorize
this Agreement and the transactions contemplated hereby. This Agreement has been
duly  executed and  delivered  by Parent and  constitutes  the legal,  valid and
binding obligation of Parent,  enforceable against Parent in accordance with its
terms.

                  SECTION 4.03 Non-Contravention.  The execution and delivery of
this  Agreement  by Parent and the  consummation  by Parent of the  transactions
contemplated  hereby will not (i) conflict with any provision of the Certificate
of  Incorporation or By-Laws of Parent or (ii) result (with the giving of notice
or the  lapse of time or  both)  in any  violation  of or  default  or loss of a
benefit under, or permit the acceleration of any obligation under, any mortgage,
indenture,  lease,  agreement or other instrument,  permit,  concession,  grant,
franchise,  license,  judgment,  order, decree, statute, law, ordinance, rule or
regulation  applicable to Parent or any of its  properties,  other than any such
violation,  default,  loss or acceleration  that would not materially  adversely
affect the ability of Parent to consummate the transactions contemplated hereby.

                  SECTION 4.04  Governmental  Approvals.  No consent,  approval,
order or  authorization  of, or  registration,  declaration  or filing with, any
Federal,  state,  local or  foreign  governmental  or  regulatory  authority  is
required to be made or obtained by Parent in  connection  with the execution and
delivery  of this  Agreement  by  Parent  or the  consummation  by Parent of the
transactions  contemplated hereby,  except for (i) compliance by Parent with the
HSR Act, (ii) filings pursuant to the Exchange Act and the rules and regulations
promulgated by the SEC  thereunder,  as  contemplated  by Sections 1.01 and 6.02
hereof,  (iii) the filing of a certificate of merger with the Secretary of State
of the State of Delaware in  accordance  with the  Delaware  GCL,  and (iv) such
consents,  approvals,  orders  or  authorizations  which  if  not  obtained,  or
registrations,  declarations or filings which if not made,  would not materially
adversely   affect  the  ability  of  Parent  to  consummate  the   transactions
contemplated hereby.

                  SECTION  4.05  Disclosure  Documents.  (a)  Each of the  Offer
Documents, when filed with the SEC in connection with the




                                       20

<PAGE>



transactions  contemplated  hereby,  will  comply  as to  form  in all  material
respects with the requirements of the Exchange Act.

                  (b) At the time of  filing  with the  SEC,  none of the  Offer
Documents will contain any untrue  statement of a material fact or omit to state
any material  fact  necessary to make the  statements  therein,  in light of the
circumstances  under which they were made, not misleading.  Notwithstanding  the
foregoing,  no  representation  is made by Parent or Acquisition with respect to
information  supplied by the Company  specifically  for  inclusion  in any Offer
Document that relates to the Company or any  Subsidiary,  affiliate or associate
of the  Company.  None of the  information  relating  to Parent  or  Acquisition
included  in the  Proxy  Statement  will,  at the time the  Proxy  Statement  is
distributed  to the  Company's  stockholders,  at the  time  of the  meeting  of
stockholders to which the Proxy  Statement  relates or at the Effective Time, as
then  amended  or  supplemented,  be false or  misleading  with  respect  to any
material fact or omit to state any material  fact required to be stated  therein
or necessary in order to make the statements therein not misleading.

                  SECTION 4.06  Brokers.  No person is entitled to any brokerage
or finder's fee or commission in connection with the  transactions  contemplated
by this  Agreement  as a result of any action taken by or on behalf of Parent or
Acquisition, other than J.P. Morgan Securities Inc.

                  SECTION 4.07 Financing. The Company has received a copy of the
commitment letter dated July 8, 1997, from Welsh, Carson,  Anderson & Stowe VII,
L.P., WCAS Capital Partners III, L.P. and certain affiliates (collectively,  the
"Financing Entities"),  pursuant to which the Financing Entities have committed,
subject to the terms and conditions set forth therein, to provide Parent with up
to an aggregate $300 million of financing (the  "Financing") and, subject to the
terms and conditions of this Agreement,  to ensure  Parent's  performance of its
obligations  hereunder.  Parent  believes  that the  aggregate  proceeds  of the
Financing  will be  sufficient  to pay all  amounts to be paid  pursuant  to the
Offer, the Merger Consideration, to pay related fees and expenses and to provide
a  reasonable   amount  of  working   capital  for  the  Surviving   Corporation
(collectively,  the "Required  Amounts").  Such  commitment  letter has not been
withdrawn as of the date hereof.


                                    ARTICLE V

                  REPRESENTATIONS AND WARRANTIES OF ACQUISITION

                  Acquisition represents and warrants to the Company as follows:





                                       21

<PAGE>



                  SECTION 5.01 Organization and  Qualification.  (a) Acquisition
is a corporation duly organized, validly existing and in good standing under the
laws of the  State  of  Delaware  and  has all  requisite  corporate  power  and
authority to own or lease and operate its  properties and assets and to carry on
its business as it is now being conducted.

                  (b) Since the date of its  incorporation,  Acquisition has not
engaged in any activity other than in connection with or as contemplated by this
Agreement,  the Offer and the Merger or in connection  with arranging  financing
required to consummate the transactions contemplated hereby.

                  SECTION 5.02 Authority Relative to Agreement.  Acquisition has
all requisite  corporate power and authority to enter into this Agreement and to
perform its obligations  hereunder.  The execution,  delivery and performance of
this  Agreement  by  Acquisition  and the  consummation  by  Acquisition  of the
transactions  contemplated  hereby  have  been duly  authorized  by the Board of
Directors of  Acquisition  and by Parent as its sole  stockholder,  and no other
corporate proceedings on the part of Acquisition are necessary to authorize this
Agreement and the transactions contemplated hereby. This Agreement has been duly
executed and  delivered by  Acquisition  and  constitutes  the legal,  valid and
binding obligation of Acquisition, enforceable against Acquisition in accordance
with its terms.

                  SECTION 5.03 Non-Contravention.  The execution and delivery of
this  Agreement  by  Acquisition  and the  consummation  by  Acquisition  of the
transactions contemplated hereby will not (i) conflict with any provision of the
Certificate of  Incorporation or By-Laws of Acquisition or (ii) result (with the
giving of notice or the lapse of time or both) in any violation of or default or
loss of a benefit under, or permit the acceleration of any obligation under, any
mortgage,   indenture,  lease,  agreement,  license,  judgment,  order,  decree,
statute,  law,  ordinance,  rule or regulation  applicable to Acquisition or its
properties,  other than any such violation,  default,  loss or acceleration that
would not materially  adversely  affect the ability of Acquisition to consummate
the transactions contemplated hereby.

                  SECTION 5.04  Governmental  Approvals.  No consent,  approval,
order or  authorization  of, or  registration,  declaration  or filing with, any
Federal,  state,  local or  foreign  governmental  or  regulatory  authority  is
required to be made or obtained by Acquisition in connection  with the execution
and delivery of this Agreement by Acquisition or the consummation by Acquisition
of  the  transactions   contemplated  hereby,   except  for  (i)  compliance  by
Acquisition  with the HSR Act, (ii) filings  pursuant to Securities  Act and the
Exchange Act and the rules and regulations promulgated by the SEC thereunder, as
contemplated by Sections 1.01 and 6.02 hereof, (iii) the filing of a certificate
of merger




                                       22

<PAGE>



with the  Secretary  of State of the State of  Delaware in  accordance  with the
Delaware GCL, and (iv) such consents,  approvals, orders or authorizations which
if not obtained,  or  registrations,  declarations or filings which if not made,
would not materially  adversely  affect the ability of Acquisition to consummate
the transactions contemplated hereby.


                                   ARTICLE VI

                               CERTAIN AGREEMENTS

                  SECTION 6.01 Conduct of the  Company's  Business.  The Company
covenants  and agrees that,  prior to the  Effective  Time,  unless Parent shall
otherwise  consent in writing or as  otherwise  expressly  contemplated  by this
Agreement:

                           (a) the business of the Company and the  Subsidiaries
         shall be conducted only in, and the Company and the Subsidiaries  shall
         not take any action  except in, the  ordinary  course of  business  and
         consistent with past practice; and

                           (b) neither the  Company  nor any  Subsidiary  shall,
         directly or  indirectly,  do any of the  following:  (i) sell,  pledge,
         dispose  of or  encumber  (or permit any  Subsidiary  to sell,  pledge,
         dispose of or  encumber)  any assets of the Company or any  Subsidiary,
         except  inventory  and  immaterial  assets  in the  ordinary  course of
         business;   (ii)  amend  or  propose  to  amend  its   Certificate   of
         Incorporation  or  By-Laws;  (iii)  split,  combine or  reclassify  any
         outstanding  shares of its capital stock, or declare,  set aside or pay
         any dividend payable in cash, stock, property or otherwise with respect
         to such shares (except for any dividends paid in the ordinary course to
         the Company or to any wholly-owned Subsidiary);  (iv) redeem, purchase,
         acquire  or offer to  acquire  (or  permit  any  Subsidiary  to redeem,
         purchase, acquire or offer to acquire) any shares of its capital stock;
         or (v) enter into any contract,  agreement,  commitment or  arrangement
         with respect to any of the matters set forth in this paragraph (b);

                           (c) neither the Company nor any Subsidiary  shall (i)
         issue,  sell, pledge or dispose of, or agree to issue,  sell, pledge or
         dispose of, any  additional  shares of, or  securities  convertible  or
         exchangeable  for,  or any  options,  warrants or rights of any kind to
         acquire any shares of, its capital stock of any class or other property
         or assets  whether  pursuant  to the Company  Stock  Option  Plan,  the
         Company Stock  Purchase  Plan, or otherwise,  provided that the Company
         may issue shares of Company Common Stock upon the exercise of currently
         outstanding options referred to in




                                       23

<PAGE>



         Section  3.05  hereof;  (ii)  acquire  (by  merger,   consolidation  or
         acquisition of stock or assets) any  corporation,  partnership or other
         business   organization   or  division   thereof  (except  an  existing
         wholly-owned  Subsidiary);  (iii) incur any  indebtedness  for borrowed
         money or issue any debt securities in an amount exceeding $3,000,000 in
         the aggregate;  (iv) enter into or modify any material contract, lease,
         agreement or commitment,  except in the ordinary course of business and
         consistent with past practice;  (v) terminate,  modify,  assign, waive,
         release  or  relinquish  any  material  contract  rights  or amend  any
         material  rights or claims not in the  ordinary  course of  business or
         (vi)  settle  or  compromise  any  material  claim,   action,  suit  or
         proceeding  pending  or  threatened  against  the  Company,  or, if the
         Company may be liable or obligated to provide indemnification,  against
         the  Company's  directors or officers,  before any court,  governmental
         agency or  arbitrator;  provided that nothing  herein shall require any
         action that might  impair or  otherwise  affect the  obligation  of any
         insurance carrier under any insurance policy maintained by the Company;

                           (d)  neither the  Company  nor any  Subsidiary  shall
         grant any increase in the salary or other compensation of its employees
         except (i) pursuant to the terms of employment  agreements in effect on
         the date hereof and previously disclosed to Parent and (ii) in the case
         of employees  who are not  executive  officers of the  Company,  in the
         ordinary course of business and consistent with past practice, or grant
         any bonus to any  employee or enter into any  employment  agreement  or
         make any loan to or enter into any  material  transaction  of any other
         nature with any employee of the Company or any Subsidiary;

                           (e)  neither the  Company  nor any  Subsidiary  shall
         (except in the case of employees who are not executive  officers of the
         Company,  for salary  increases in the ordinary  course of business and
         consistent with past practice)  adopt or amend, in any respect,  except
         as  contemplated  hereby or as may be  required  by  applicable  law or
         regulation,   any  collective   bargaining,   bonus,   profit  sharing,
         compensation,  stock option,  restricted  stock,  pension,  retirement,
         deferred  compensation,  employment  or other  employee  benefit  plan,
         agreement,  trust, fund, plan or arrangement for the benefit or welfare
         of any directors, officers or employees (including, without limitation,
         any such plan or arrangement relating to severance or termination pay);

                           (f) neither the Company nor any Subsidiary shall take
         any action  that  would  make any  representation  or  warranty  of the
         Company  hereunder  inaccurate in any material respect at, or as of any
         time prior to, the Effective Time,




                                       24

<PAGE>



         or omit to take any action necessary to prevent any such representation
         or warranty from being  inaccurate in any material  respect at any such
         time; and

                           (g) each of the  Company and the  Subsidiaries  shall
         use its best  efforts,  to the extent not  prohibited  by the foregoing
         provisions of this Section 6.01, to maintain its relationships with its
         suppliers  and  customers,  and  if  and  as  requested  by  Parent  or
         Acquisition,  (i) the  Company  shall  use  its  best  efforts  to make
         reasonable arrangements for representatives of Parent or Acquisition to
         meet with  customers and suppliers of the Company or any Subsidiary and
         (ii) the Company  shall  schedule,  and the  management  of the Company
         shall  participate  in,  meetings  of   representatives  of  Parent  or
         Acquisition with employees of the Company or any Subsidiary.

                  SECTION 6.02 Stockholder  Approval.  (a) As soon as reasonably
practicable  following  the  acquisition  by  Acquisition  of a majority  of the
outstanding Shares (on a fully diluted basis), the Company shall take all action
necessary  in  accordance   with  the  Delaware  GCL  and  its   Certificate  of
Incorporation  and  By-Laws  to call,  give  notice of and  convene a meeting (a
"Meeting")  of its  stockholders  to  consider  and vote upon the  approval  and
adoption of this  Agreement and the Merger and for such other purposes as may be
necessary or  desirable.  The Board of  Directors of the Company has  determined
that the Merger is advisable and in the best  interests of the  stockholders  of
the  Company  and shall,  subject  to  fiduciary  duties as advised by  counsel,
recommend  that the  stockholders  of the Company vote to approve and adopt this
Agreement and the Merger and any other  matters to be submitted to  stockholders
in connection therewith.

                  (b)  As  promptly  as  reasonably  practicable  following  the
acquisition by Acquisition of a majority of the  outstanding  Shares (on a fully
diluted  basis),  the  Company  shall  file a  proxy  or  information  statement
pertaining to the Merger (the "Proxy  Statement").  Parent and Acquisition shall
cooperate  fully with the Company in the  preparation of the Proxy Statement and
any  amendments  and  supplements  thereto.  The  Proxy  Statement  shall not be
distributed,  and no  amendment  or  supplement  thereto  shall  be  made by the
Company,  without the prior consent of Parent and its counsel. The Company shall
use its best  efforts to have the Proxy  Statement  cleared by the SEC and shall
cause  a  definitive  Proxy  Statement  to be  distributed  to its  stockholders
entitled to vote upon the Merger as promptly as practicable thereafter.

                  (c) The  Company  shall  notify  Parent of the  receipt of the
comments of the SEC and of any requests by the SEC for amendments or supplements
to the Proxy Statement or for additional information,  and shall promptly supply
Parent  with  copies  of  all   correspondence   between  the  Company  (or  its
representatives)




                                       25

<PAGE>



and the SEC (or its staff) with  respect  thereto.  If, at any time prior to the
Meeting, any event should occur relating to or affecting the Company,  Parent or
Acquisition, or to their respective officers or directors, which event should be
described in an  amendment or  supplement  to the Proxy  Statement,  the parties
shall  promptly  inform one another and shall  cooperate in promptly  preparing,
filing and clearing with the SEC and, if required by applicable securities laws,
distributing to the Company's stockholders such amendment or supplement.

                  SECTION 6.03 Access to Information. (a) The Company shall, and
shall cause the Subsidiaries and its and their respective  officers,  directors,
employees,  representatives  and agents to, afford,  from the date hereof to the
Effective Time, the officers,  employees,  representatives  and agents of Parent
reasonable  access during  regular  business  hours to its officers,  employees,
agents,  properties,  books, records and workpapers,  and shall promptly furnish
Parent  all  financial,  operating  and other  information  and data as  Parent,
through its officers, employees or agents, may reasonably request.

                  (b) Except as required  by law,  Parent  shall hold,  and will
cause its respective  officers,  employees,  representatives and agents to hold,
any confidential  information in accordance with the  Confidentiality  Agreement
dated November 1, 1995 between the Company and Welsh,  Carson,  Anderson & Stowe
VII, L.P. (the "Confidentiality Agreement").

                  (c) No  investigation  pursuant  to this  Section  6.03  shall
affect, add to or subtract from any representations or warranties of the parties
hereto or the conditions to the  obligations of the parties hereto to consummate
the Offer or effect the Merger.

                  SECTION  6.04  Further  Assurances.  Subject  to the terms and
conditions  herein  provided,  each  of the  parties  hereto  agrees  to use all
reasonable efforts to take, or cause to be taken, all action and to do, or cause
to be done,  all things  necessary,  proper or advisable to consummate  and make
effective  as promptly as  practicable  the  transactions  contemplated  by this
Agreement, including, without limitation, using all reasonable efforts to obtain
all  necessary  waivers,  consents  and  approvals  and to effect all  necessary
registrations and filings  (including  without  limitation any necessary filings
under the HSR Act);  provided that the foregoing shall not require Parent or the
Company to make,  or agree to make,  or require  Parent to permit the Company or
any the Subsidiaries to make, any divestiture of a significant asset in order to
obtain any waiver, consent or approval.

                  SECTION 6.05 Inquiries and Negotiations; Certain Payments. (a)
From the date hereof until the termination hereof, the Company, the Subsidiaries
and their respective




                                       26

<PAGE>



officers,  directors,  employees,  representatives  and other  agents  will not,
directly or  indirectly,  solicit or initiate any  discussions,  submissions  of
proposals or offers or negotiations  with or, subject to the fiduciary duties of
the  Company's  Board of  Directors  as advised by counsel,  participate  in any
negotiations  or  discussions  with, or provide any  information  or data of any
nature whatsoever to, or otherwise cooperate in any other way with, or assist or
participate  in,  facilitate  or encourage any effort or attempt by, any person,
corporation, entity or "group" (as defined in Section 13(d) of the Exchange Act)
other than Parent and its affiliates, representatives and agents (each, a "Third
Party") in connection with any merger, consolidation,  sale of any Subsidiary or
division  that is material to the business of the Company and the  Subsidiaries,
sale of shares of capital stock or other equity  securities,  tender or exchange
offer, recapitalization, debt restructuring or similar transaction involving the
Company  (such  transactions  being  hereinafter  referred  to  as  "Alternative
Transactions"),  provided,  however,  that nothing  contained in this  Agreement
shall prohibit the Company Board from taking and disclosing a position  required
by Rule 14e-2 under the  Exchange  Act.  The Company  shall  immediately  notify
Parent if any  proposal,  offer,  inquiry or other  contact is received  by, any
information is requested from, or any discussions or negotiations  are sought to
be  initiated  or  continued  with,  the  Company in  respect of an  Alternative
Transaction,  and shall, in any such notice to Parent,  indicate the identity of
the Third Party and the terms and  conditions  of any proposals or offers or the
nature of any inquiries or contacts,  and thereafter shall keep Parent informed,
on a current basis,  of the status and terms of any such proposals or offers and
the  status  of any such  discussions  or  negotiations.  Without  limiting  the
generality of the foregoing, the Company shall provide Parent with not less then
(i) two  business  days'  notice  prior to the  execution  by the Company of any
definitive  agreement with respect to any  Alternative  Transaction and (ii) two
days'  notice (or the  longest  notice  legally  permissible  in the  reasonable
determination  of counsel for the Company,  if less than two days) of any public
announcement  relating to any Alternative  Transaction.  Prior to furnishing any
non-public  information to, or entering into  negotiations or discussions  with,
any Third Party, the Company will obtain an executed  confidentiality  agreement
from such Third Party on terms  substantially  the same as, or no less favorable
to  the  Company  in  any  material   respect  than,   those  contained  in  the
Confidentiality  Agreement.  The Company shall not release any Third Party from,
or waive any  provision  of,  any such  confidentiality  agreement  or any other
confidentiality  or standstill  agreement to which the Company is a party. As of
the date hereof,  the Company shall cease,  and shall cause its subsidiaries and
the  officers,  directors,  employees,  representatives  and other agents of the
Company  and  its  subsidiaries  to  cease  all  discussions,  negotiations  and
communications with all Third Parties and demand the immediate




                                       27

<PAGE>



return of all confidential information previously provided to Third Parties.

                  (b) If a Payment Event (as hereinafter  defined)  occurs,  the
Company  shall pay to Parent,  within two business days  following  such Payment
Event,  (i) a fee of $8,200,000 in cash, plus (ii) all reasonable and documented
out-of-pocket  costs and expenses of Parent and Acquisition,  including  without
limitation  fees and expenses of counsel,  accountants,  investment  bankers and
other advisors and printing expenses.  In the event that this Agreement shall be
terminated for any other reason and the Company shall have failed to comply with
or  perform,  or  shall  have  breached,  in any  material  respect,  any of its
covenants  or  agreements  contained  herein,  the Company  shall pay to Parent,
within two  business  days  following  such  termination,  the fees and expenses
referred to in clause (ii) of the  preceding  sentence;  provided that such fees
and expenses shall not be so payable if Parent or Acquisition  shall have failed
to comply with or perform, or shall have breached,  in any material respect, any
of its covenants or agreements contained herein.

                  (c)  "Payment   Event"  means  (i)  the  termination  of  this
Agreement by Parent  pursuant to Section  8.01(e);  (ii) the termination of this
Agreement by the Company  pursuant to Section 8.01(d) or (iii) the occurrence of
any of the  following  events within 6 months after the date of  termination  of
this  Agreement  (other than by reason of Parent's or  Acquisition's  failure to
comply  with or  perform,  or breach,  in any  material  respect,  of any of its
covenants or agreements  contained  herein) whereby  stockholders of the Company
receive,  pursuant to such event, cash, securities or other consideration having
an aggregate value,  when taken together with the value of any securities of the
Company or its  subsidiaries  otherwise held by the  stockholders of the Company
after such event, in excess of $20.90 per Share:  (w) the Company is acquired by
merger or otherwise by a Third Party;  (x) a Third Party  acquires more than 50%
of the total assets of the Company and the Subsidiaries, taken as a whole; (y) a
Third Party acquires more than 50% of the outstanding  Shares or (z) the Company
adopts and implements a plan of liquidation or share repurchase relating to more
than 50% of the outstanding Shares or an extraordinary dividend relating to more
than 50% of the assets of the Company and the Subsidiaries, taken as a whole.

                  (d) The Company  acknowledges that the agreements contained in
this Section 6.05 are an integral part of the transactions  contemplated by this
Agreement, and that, without these agreements,  Parent and Acquisition would not
enter into this Agreement; accordingly, if the Company fails to promptly pay any
amount due pursuant to this Section 6.05,  and, in order to obtain such payment,
Parent and/or  Acquisition  commences a suit which results in a judgment against
the Company for the fee and




                                       28

<PAGE>



expenses set forth in this Section  6.05,  the Company  shall also pay to Parent
and  Acquisition  their  costs and  expenses  incurred in  connection  with such
litigation.  Notwithstanding the foregoing,  each party shall bear its own costs
and expenses incurred in connection with any litigation over the  reasonableness
and/or documentation of any expenses submitted for reimbursement hereunder.

                  (e) This Section 6.05 shall  survive any  termination  of this
Agreement, however caused.

                  SECTION  6.06  Notification  of Certain  Matters.  The Company
shall give prompt notice to Parent and  Acquisition,  and Parent and Acquisition
shall give prompt notice to the Company,  of (i) the  occurrence,  or failure to
occur, of any event that such party believes would be likely to cause any of its
representations  or  warranties  contained  in this  Agreement  to be  untrue or
inaccurate  in any  material  respect  at any time  from the date  hereof to the
Effective  Time  and  (ii)  any  material  failure  of the  Company,  Parent  or
Acquisition,  as the case may be, or any  officer,  director,  employee or agent
thereof,  to comply with or satisfy any  covenant,  condition or agreement to be
complied with or satisfied by it hereunder;  provided,  however, that failure to
give such  notice  shall not  constitute  a waiver  of any  defense  that may be
validly asserted.

                  SECTION  6.07   Indemnification.   (a)  The   Certificate   of
Incorporation  and  By-Laws  of the  Surviving  Corporation  shall  contain  the
provisions with respect to  indemnification  and exculpation  from liability set
forth in the Company's  Certificate of Incorporation and By-Laws as in effect on
the date hereof,  which provisions  shall not be amended,  repealed or otherwise
modified  for a period of six years from the  Effective  Time in any manner that
would adversely affect the rights  thereunder of individuals who, on or prior to
the Effective Time, were directors, officers, employees or agents of the Company
(collectively,  the "Indemnified Parties"), unless such modification is required
by law. Parent shall guarantee the obligations of the Surviving Corporation with
respect to indemnification of the Indemnified  Parties under such provisions and
under the Company's indemnification agreements with its directors and officers.

                  (b) For a period of two years after the expiration date of the
Company's current policy, the Surviving Corporation shall maintain officers' and
directors'  liability  insurance  covering  those  Indemnified  Parties  who are
currently covered by the Company's  directors' and officers' liability insurance
policy,  a copy of which has heretofore  been  delivered to Parent,  on terms no
less  favorable  than the terms of such current  insurance  coverage,  provided,
however,  that in no event shall the Surviving Corporation be required to expend
in any one year an amount in excess  of 150% of the  annual  premiums  currently
payable




                                       29

<PAGE>



by the Company  for such  insurance,  provided,  further,  however,  that if the
annual  premiums of such insurance  coverage  exceed such amount,  the Surviving
Corporation  shall obtain a policy with the greatest  coverage  available  for a
cost not exceeding such amount.

                  (c) This Section 6.07 shall  survive the  consummation  of the
Merger at the Effective  Time, is intended to benefit the Company,  Parent,  the
Surviving  Corporation and the Indemnified  Parties, and shall be binding on the
successors and assigns of
the Surviving Corporation.

                  SECTION 6.08 Voting of Shares.  Each of Parent and Acquisition
agrees to vote all Shares  beneficially owned by it in favor of adoption of this
Agreement and approval of the Merger.


                                   ARTICLE VII

                            CONDITIONS TO THE MERGER

                  SECTION 7.01  Conditions to the Merger  Relating to Parent and
Acquisition. The obligation of Parent and Acquisition to effect the Merger shall
be subject,  at their option,  to the  fulfillment  at or prior to the Effective
Time of the following conditions:

                           (a)     this Agreement and the Merger shall have been
         approved and adopted by the requisite vote of the stockhold-
         ers of the Company;

                           (b)      the expiration or earlier termination of any
         waiting period under the HSR Act shall have occurred;

                            (c) no preliminary or permanent  injunction or other
         order,  decree or ruling issued by any court of competent  jurisdiction
         nor any statute,  rule,  regulation or order  entered,  promulgated  or
         enacted by any  governmental,  regulatory or  administrative  agency or
         authority  shall  be  in  effect  that  would  restrain  the  effective
         operation of the business of the Company and the Subsidiaries  from and
         after the Effective Time, and no proceeding  challenging this Agreement
         or the transactions  contemplated hereby or seeking to prohibit, alter,
         prevent  or  materially  delay the Merger  shall be pending  before any
         court, arbitrator or governmental agency, body or official; and

                           (d) Acquisition  shall have purchased Shares pursuant
         to the Offer (provided that this condition shall be deemed fulfilled if
         Acquisition  shall have failed to purchase  Shares in  violation of the
         Offer).





                                       30

<PAGE>



                  SECTION 7.02 Conditions to the Merger Relating to the Company.
The  obligation  of the Company to effect the Merger  shall be  subject,  at its
option,  to the  fulfillment  at or prior to the Effective Time of the following
conditions:

                    (a) this  Agreement  and the Merger shall have been approved
               and adopted by the requisite  vote of the  stockhold-  ers of the
               Company;

                    (b) the  expiration  or earlier  termination  of any waiting
               period under the HSR Act shall have occurred; and

                    (c) no preliminary  or permanent  injunction or other order,
               decree or ruling  issued by any court of  competent  jurisdiction
               nor any statute,  rule, regulation or order entered,  promulgated
               or  enacted by any  governmental,  regulatory  or  administrative
               agency or  authority  shall be in effect  that would  prevent the
               consummation of the Merger as contemplated hereby.


                                  ARTICLE VIII

                           TERMINATION AND ABANDONMENT

                  SECTION 8.01 Termination and  Abandonment.  This Agreement may
be terminated and the Merger may be abandoned at any time prior to the Effective
Time, whether before or after approval by the stockholders of the Company:

                  (a) by mutual  action of the Boards of Directors of Parent and
the Company;

                  (b) by either  Parent or the  Company,  if (i) the Offer shall
not have been  consummated  on or prior to the close of  business on October 31,
1997; (ii) the conditions to its obligations under Section 7.01 or Section 7.02,
as the case may be,  shall  not have  been  complied  with or  performed  in any
material respect and such  noncompliance or  nonperformance  shall not have been
cured or  eliminated  (or by its nature  cannot be cured or  eliminated)  by the
other party on or before  December 31, 1997;  or (iii) the Merger shall not have
been effected on or prior to the close of business on December 31, 1997; unless,
in any case,  such event has been caused by the breach of this  Agreement by the
party seeking such termination;

                  (c) by Parent,  if the Offer is terminated or expires  without
the purchase of any Shares thereunder, unless such termination or expiration has
been caused by the failure of Parent or  Acquisition  to perform in any material
respect its obligations under this Agreement and the Offer;





                                       31

<PAGE>



                  (d)  by the  Company  if,  prior  to the  earlier  of (i)  the
acceptance  for  payment  of  Shares  by  Acquisition  under  the Offer and (ii)
stockholder  approval of this Agreement and the Merger,  the Company shall enter
into a definitive  written agreement with respect to an Alternative  Transaction
with a Third Party,  or a Third Party has  commenced a tender  offer  which,  in
either case,  the Board of  Directors  of the Company  believes in good faith is
more favorable to the Company's stockholders than the transactions  contemplated
by this Agreement;  provided, that all amounts payable under Section 6.05 hereof
shall have been paid prior to such  termination  (except  for any amounts due in
respect of expenses for which  documentation  shall not have been provided prior
to such  termination,  which  amounts  shall be paid as promptly as  practicable
after delivery to the Company of required documentation thereof); or

                  (e) by Parent,  if (i) the Board of  Directors  of the Company
shall have  withdrawn,  modified  or  amended in a manner  adverse to Parent and
Acquisition  its  approval  or  recommendation  of the Offer  and the  Merger or
approved, recommended or endorsed any proposal for, or authorized the Company to
enter  into,  an  Alternative  Transaction,  or (ii) Cowen & Company  shall have
withdrawn  its  opinion at any time prior to the earlier of (A)  acceptance  for
payment of Shares by Acquisition under the Offer and (B) the Effective Time.

Any party  desiring to terminate  this  Agreement  pursuant to this Section 8.01
shall give notice to the other party in accordance with Section 9.05.

                  SECTION  8.02  Effect of  Termination.  Except as  provided in
Sections 6.05 and 9.02 hereof, in the event of the termination of this Agreement
and the abandonment of the Merger pursuant to Section 8.01, this Agreement shall
thereafter  become void and have no effect,  and no party  hereto shall have any
liability to any other party hereto or its stockholders or directors or officers
in respect  thereof,  except that nothing  herein  shall  relieve any party from
liability for any willful breach hereof.


                                   ARTICLE IX

                                  MISCELLANEOUS

                  SECTION 9.01  Nonsurvival of  Representations  and Warranties.
None  of  the  representations  and  warranties  in  this  Agreement  or in  any
instrument  delivered pursuant hereto shall survive the Effective Time, provided
that this  Section 9.01 shall not limit any covenant or agreement of the parties
that by its terms contemplates performance after the Effective Time.





                                       32

<PAGE>



                  SECTION  9.02  Expenses,  Etc.  (a)  In  the  event  that  the
transactions contemplated by this Agreement are not consummated, then, except as
set forth in Section 6.05(b),  neither the Company,  on the one hand, nor Parent
and Acquisition,  on the other hand, shall have any obligation to pay any of the
fees and  expenses of the other  incident to the  negotiation,  preparation  and
execution  of this  Agreement,  including  the fees  and  expenses  of  counsel,
accountants, investment bankers and other experts.

                  (b) In the event that the  transactions  contemplated  by this
Agreement are consummated,  Parent shall pay all of the fees and expenses of the
Company  incident  to  the  negotiation,   preparation  and  execution  of  this
Agreement,  including the fees and expenses of counsel, accountants,  investment
bankers  and other  advisors,  and Parent  shall pay all such fees and  expenses
incurred by Acquisition and Parent.

                  SECTION 9.03 Publicity. The Company and Parent agree that they
will  not  issue  any  press  release  or make  any  other  public  announcement
concerning this Agreement or the  transactions  contemplated  hereby without the
prior  consent of the other  party,  except  that the Company or Parent may make
such public  disclosure that it believes in good faith to be required by law (in
which  event  such  party  shall  consult  with the other  prior to making  such
disclosure).

                  SECTION 9.04 Execution in Counterparts. For the convenience of
the parties, this Agreement may be executed in one or more counterparts, each of
which shall be deemed an original,  but all of which together  shall  constitute
one and the same  instrument,  and may be  delivered  in person or by  facsimile
transmission.

                  SECTION 9.05 Notices.  All notices that are required or may be
given pursuant to the terms of this  Agreement  shall be in writing and shall be
sufficient in all respects if given in writing and delivered by hand or national
overnight  courier  service,  transmitted by telecopy or mailed by registered or
certified mail, postage prepaid, as follows:

                  If to Parent to it:

                           In care of Welsh, Carson, Anderson & Stowe
                           320 Park Avenue, Suite 2500
                           New York, N.Y. 10022

                           Attention:  Patrick J. Welsh





                                       33

<PAGE>



                  with a copy to:

                           Reboul, MacMurray, Hewitt, Maynard & Kristol
                           45 Rockefeller Plaza
                           New York, N.Y. 10111

                           Attention:  William J. Hewitt

                  If to the Company, to:

                           Control Data Systems, Inc.
                           4201 Lexington Avenue North
                           Arden Hills, MN  55126-6198

                           Attention:  Chief Executive Officer

                  with a copy to:

                           Fredrikson & Byron, P.A.
                           1100 International Centre
                           900 Second Avenue South
                           Minneapolis, Minnesota 55402

                           Attention:  Keith A. Libbey

or such other address or addresses as any party hereto shall have  designated by
notice in writing to the other parties hereto.

                  SECTION 9.06 Waivers. The Company, on the one hand, and Parent
and  Acquisition,  on the other hand,  may, by written notice to the other,  (i)
extend the time for the  performance of any of the  obligations or other actions
of  the  other  under  this  Agreement;  (ii)  waive  any  inaccuracies  in  the
representations or warranties of the other contained in this Agreement or in any
document delivered  pursuant to this Agreement;  (iii) waive compliance with any
of the  conditions  of the other  contained  in this  Agreement;  or (iv)  waive
performance of any of the obligations of the other under this Agreement.  Except
as  provided  in the  preceding  sentence,  no  action  taken  pursuant  to this
Agreement,  including,  without limitation, any investigation by or on behalf of
any  party,  shall be deemed to  constitute  a waiver by the party  taking  such
action  of  compliance  with  any  representations,   warranties,  covenants  or
agreements  contained  in this  Agreement.  The waiver by any party  hereto of a
breach of any provision of this Agreement shall not operate or be construed as a
waiver of any subsequent breach.

                  SECTION 9.07 Entire Agreement.  This Agreement, the Disclosure
Schedule,  the documents  executed at the Effective Time in connection  herewith
and the  Confidentiality  Agreement  constitute the entire  agreement  among the
parties hereto with respect to the subject matter hereof and supersede all prior
agreements and understandings, oral and written, among the parties hereto




                                       34

<PAGE>



with respect to the subject  matter  hereof.  The Company may, in its discretion
and for its convenience,  include in the Disclosure  Schedule items that are not
material,  and  such  inclusions  shall  not be  deemed  to be an  agreement  or
admission  by the Company  that such items are  material or otherwise be used to
interpret the meaning of such term for purposes of this  Agreement or otherwise.
The parties  agree that no  representation,  warranty,  promise,  inducement  or
statement of intention  made by any party that is not embodied in this Agreement
or such other  documents  may be relied upon for any  purpose by any party,  and
none  of  the  parties  shall  be  bound  by,  or be  liable  for,  any  alleged
representation,  warranty,  promise,  inducement  or statement of intention  not
embodied herein or therein. The projections and budgets furnished by the Company
to  Parent  are  arithmetically  accurate,  based on the  assumptions  set forth
therein; it being understood that, while facts and circumstances  resulting in a
Material  Adverse  Effect on the Company may also result or be  reflected in the
Company's  failure to achieve such projected or budgeted  results,  such failure
shall not, in and of itself,  be deemed to be a Material  Adverse  Effect on the
Company.

                  SECTION 9.08  Applicable Law. This Agreement shall be governed
by and construed in accordance  with the laws of the State of Delaware,  without
regard to principles of conflict of laws.

                  SECTION 9.09 Binding  Effect,  Benefits.  This Agreement shall
inure to the  benefit  of and be  binding  upon the  parties  hereto  and  their
respective permitted successors and assigns.  Notwithstanding anything contained
in this  Agreement  to the  contrary,  nothing in this  Agreement,  expressed or
implied,  is intended to confer on any person  other than the parties  hereto or
their  respective  permitted  successors  and  assigns,  any  rights,  remedies,
obligations  or  liabilities  under or by  reason of this  Agreement;  provided,
however,  that the provisions of Section 6.07 hereof shall accrue to the benefit
of, and shall be  enforceable  by, each of the current and former  directors and
officers of the Company.

                  SECTION 9.10 Assignability.  Neither this Agreement nor any of
the parties'  rights  hereunder  shall be assignable by any party hereto without
the prior written consent of the other parties hereto.

                  SECTION 9.11 Amendments. This Agreement may be varied, amended
or  supplemented  at any time before or after the  approval and adoption of this
Agreement by the stockholders of the Company by action of the respective  Boards
of Directors  of the  Company,  Parent and  Acquisition,  without  action by the
stockholders  thereof;  provided  that,  after  approval  and  adoption  of this
Agreement  by  the  Company's  stockholders,  no  such  variance,  amendment  or
supplement shall, without consent of such




                                       35

<PAGE>



stockholders,  reduce the amount or alter the form of the consideration that the
holders of the capital  stock of the Company  shall be entitled to receive  upon
the  Effective  Time  pursuant to Section  2.05  hereof.  Without  limiting  the
generality  of the  foregoing,  this  Agreement  may only be amended,  varied or
supplemented by an instrument in writing, signed by the parties hereto.





                                       36

<PAGE>



                  IN WITNESS  WHEREOF,  the parties have  executed and delivered
this Agreement and Plan of Merger as of the day and year first above written.


                            CDSI HOLDING CORPORATION


                            By /s/ Thomas E. McInerney
                               ----------------------------------
                            Name:   Thomas E. McInerney
                            Title: President

                            CDSI ACQUISITION CORP.


                            By /s/ Thomas E. McInerney
                               ----------------------------------
                            Name:   Thomas E. McInerney
                            Title: President

                            CONTROL DATA SYSTEMS, INC.


                            By /s/ James E. Ousley
                               ----------------------------------
                            Name:   James E. Ousley
                            Title: President and
                                   Chief Executive Officer






                                       37

<PAGE>



                             INDEX TO DEFINED TERMS

                 THIS INDEX IS INCLUDED FOR CONVENIENCE ONLY AND
                   DOES NOT CONSTITUTE A PART OF THE AGREEMENT


   Term                                                   Section Reference
   ----                                                   -----------------

"Acquisition"                                                 Recitals
"Alternative Transactions"                                    6.05(a)
"Business Segment"                                            3.08
"Certificate"                                                 2.07(b)
"Code"                                                        3.17(a)
"Company"                                                     Recitals
"Company Common Stock"                                        Recitals
"Company Disclosure Documents"                                3.11(a)
"Company SEC Filings"                                         3.06
"Company Stock Option Plan"                                   3.05
"Company Stock Purchase Plan"                                 3.05
"Confidentiality Agreement"                                   6.03(c)
"Constituent Corporations"                                    Recitals
"Continuing Director"                                         1.03(a)
"Delaware GCL"                                                1.02(a)
"Disclosure Schedule"                                         3.02
"Dissenting Shares"                                           2.08
"Effective Time"                                              2.01
"Environmental Event"                                         3.18
"ERISA"                                                       3.17(a)
"Exchange Act"                                                3.06
"Exchange Agent"                                              2.07(a)
"Exchange Fund"                                               2.07(a)
"Financing"                                                   4.07
"Financing Entities"                                          4.07
"HSR Act"                                                     3.09
"Indemnified Parties"                                         6.07(a)
"Material Adverse Effect"                                     3.01
"Meeting"                                                     6.02(a)
"Merger"                                                      2.01
"Merger Consideration"                                        2.05(c)
"Minimum Condition"                                           1.01
"Offer"                                                       1.01
"Parent"                                                      Recitals
"Payment Event"                                               6.05(c)
"Plans"                                                       3.17(a)
"Preferred Stock"                                             3.05
"Proprietary Software"                                        3.13(a)
"Proxy Statement"                                             6.02(b)
"Returns"                                                     3.16(a)
"Required Amounts"                                            4.07
"SEC"                                                         1.01
"Securities Act"                                              3.06
"Schedule 14D-9"                                              1.02(b)





<PAGE>

   Term                                                   Section Reference
   ----                                                   -----------------

"Shares"                                                      1.01
"Subsidiary"                                                  3.02(c)
"Surviving Corporation"                                       Recitals
"Third Party"                                                 6.05(a)
"Third Party Software"                                        3.13(a)
"Tax"                                                         3.16(d)








<PAGE>



                                                                         ANNEX I

                            CONDITIONS TO THE OFFER

                  Capitalized terms used in this Annex I shall have the meanings
assigned  to  them  in the  Agreement  to  which  it is  attached  (the  "Merger
Agreement").

                  Notwithstanding any other provision of the Offer,  Acquisition
shall not be  required  to accept  for  payment or pay for any  Shares,  and may
terminate the Offer,  if (1) prior to the  expiration  date of the Offer (A) the
number of Shares validly  tendered and not  withdrawn,  together with any Shares
then owned by Acquisition,  shall not satisfy the Minimum Condition,  or (B) the
applicable  waiting  period  under the HSR Act shall  not have  expired  or been
terminated; or (2) at any time on or after July 8, 1997, and prior to acceptance
for payment of or payment for Shares, any of the following conditions exist:

                  (a)  there  shall be  instituted  or  pending  any  action  or
         proceeding  by any  government  or  governmental  authority  or agency,
         before any court or governmental  authority or agency,  (i) challenging
         or  seeking  to  make  illegal,  to  delay  or  otherwise  directly  or
         indirectly  to  restrain  or  prohibit  the  making of the  Offer,  the
         acceptance  for  payment of or payment for some of or all the Shares by
         Acquisition or the consummation by Acquisition or Parent of the Merger,
         or seeking to obtain  material  damages  relating  to the  transactions
         contemplated  by the Offer or the Merger,  (ii)  seeking to restrain or
         prohibit  Parent's  or  Acquisition's   full  rights  of  ownership  or
         operation  (or  that  of  Parent's  subsidiaries  or  affiliates)  of a
         material  portion  of the  business  or assets of the  Company  and its
         subsidiaries,  taken as a whole,  or of  Parent  and its  subsidiaries,
         taken as a whole,  or any of their  respective  affiliates or to compel
         Parent or any of its  subsidiaries  or affiliates to dispose of or hold
         separate a material  portion of the  business  or assets of the Company
         and  its  subsidiaries,  taken  as  a  whole,  or  of  Parent  and  its
         subsidiaries,  taken as a whole, or any of their respective affiliates,
         (iii) seeking to impose  material  limitations on the ability of Parent
         or any of its  subsidiaries or affiliates  effectively to exercise full
         rights of ownership of the Shares, including,  without limitation,  the
         right to vote any  Shares  acquired  or owned by  Parent  or any of its
         subsidiaries  or  affiliates on all matters  properly  presented to the
         Company's  stockholders,  (iv) seeking to require divestiture by Parent
         or any of its subsidiaries or affiliates of any Shares, (v) prohibiting
         the financing of the Offer,  or (vi) that  otherwise  would  reasonably
         expected to have a Material Adverse Effect on the Company; or






<PAGE>



                  (b) there  shall  have been any action  taken or any  statute,
         rule, regulation, judgment, administrative interpretation,  injunction,
         order or decree proposed,  enacted,  enforced,  promulgated,  issued or
         deemed  applicable  to the  Offer,  the  acceptance  for  payment of or
         payment  for any  Shares or the  Merger,  by any court,  government  or
         governmental  authority or agency  (other than the  application  of the
         waiting period  provisions of the HSR Act to the Offer,  the acceptance
         for  payment of or payment  for any  Shares or the  Merger),  that has,
         directly or indirectly,  resulted, or is reasonably likely to, directly
         or indirectly, result in any of the consequences referred to in clauses
         (i) through (vi) of paragraph (a) above; or

                  (c) any change shall have occurred or been  threatened (or any
         development  shall  have  occurred  or  been  threatened   involving  a
         prospective  change) in the business,  assets,  liabilities,  financial
         condition,  capitalization,  operations or results of operations of the
         Company or any of its  subsidiaries or affiliates that has had or would
         reasonably be expected to have a Material Adverse Effect, or Parent and
         Acquisition  shall have become  aware of any facts that have had or are
         reasonably likely to have a Material Adverse Effect; or

                  (d) there shall have  occurred (i) any general  suspension  of
         trading in, or  limitation  on prices for  securities  on any  national
         securities exchange or in the over-the-counter market, (ii) any decline
         in either the Dow Jones  Industrial  Average or the Standard and Poor's
         Index of 500  Industrial  Companies  by an  amount  in  excess  of 15%,
         measured  from July 8,  1997,  (iii)  the  declaration  of any  banking
         moratorium  or any  suspension  of  payments in respect of banks or any
         material  limitation  (whether or not  mandatory)  on the  extension of
         credit  by  lending   institutions  in  the  United  States,  (iv)  the
         commencement  of a war,  material  armed  hostilities or other material
         international or national calamity directly or indirectly involving the
         United States or having a significant adverse effect on the functioning
         of the financial  markets in the United  States,  or (v) in the case of
         any of the  foregoing  existing at the time of  execution of the Merger
         Agreement, a material acceleration or worsening thereof; or

                  (e) it  shall  have  been  publicly  disclosed  or  Parent  or
         Acquisition shall have otherwise learned that (i) any Third Party shall
         have  acquired  beneficial  ownership  of more than 10% of any class or
         series of capital stock of the Company (including the Shares),  through
         the  acquisition  of stock,  the formation of a group or otherwise,  or
         shall have been granted any option,  right or warrant,  conditional  or
         otherwise, to acquire beneficial ownership of more than 10% of




                                        2

<PAGE>



         any class or series of  capital  stock of the  Company  (including  the
         Shares) other than  acquisitions for bona fide arbitrage  purposes only
         and other than as  disclosed  in a Schedule 13D or 13G on file with the
         Commission  prior to the date of the Merger  Agreement,  (ii) any Third
         Party that, prior to the date of the Merger Agreement, had filed such a
         Schedule with the Commission shall have acquired  beneficial  ownership
         of  additional  shares of any class or series of  capital  stock of the
         Company  (including the Shares),  through the acquisition of stock, the
         formation of a group or  otherwise,  constituting  an  additional 5% or
         more of any such  class or  series,  or shall  have  been  granted  any
         option,  right  or  warrant,   conditional  or  otherwise,  to  acquire
         beneficial  ownership  of  additional  shares of any class or series of
         capital stock of the Company  (including the Shares)  constituting  and
         additional  5% or more of any such class or series,  or (iii) any Third
         Party shall have entered into a definitive agreement or an agreement in
         principle  with respect to a merger,  consolidation  or other  business
         combination with the Company; or

                  (f) the Company  shall have  breached or failed to perform any
         of its covenants or agreements  under the Merger  Agreement,  or any of
         the  representations  and  warranties  of the  Company set forth in the
         Merger  Agreement  shall not have been true when  made,  or at any time
         prior to  consummation of the Offer, as if made at and as of such time,
         provided that  representations  and warranties  made as of a particular
         date  need  be true  only as of such  date  (for  the  purpose  of this
         paragraph (f),  representations  and warranties of the Company that are
         expressly  qualified by a materiality  qualification  shall be true and
         correct  subject  to such  materiality  qualification,  and  all  other
         representations  and  warranties  shall  be  true  and  correct  in all
         material  respects);  and in any such  case,  such  breach,  failure or
         untruth  would  reasonably  be expected  to  materially  influence  the
         investment  decision of a reasonable  purchaser of all or a substantial
         portion of the Company's outstanding securities; or

                  (g)   all   consents,   approvals,   licenses,   certificates,
         accreditations,   authorizations   or   orders   of  any   governmental
         commission,  board or other regulatory body required in connection with
         the execution, delivery and performance of the Merger Agreement and for
         the Surviving  Corporation and the  Subsidiaries to conduct business in
         substantially  the manner conducted by the Company and the Subsidiaries
         as of the date of the Merger  Agreement,  shall not have been obtained,
         except  for any of the same,  the  failure  to obtain  which  would not
         reasonably be expected to have a Material Adverse Effect on the Company
         after  giving  effect to the  transactions  contemplated  by the Merger
         Agreement; or





                                        3

<PAGE>


                  (h)  the  Merger  Agreement  shall  have  been  terminated  in
         accordance  with its terms or amended in  accordance  with its terms to
         provide for such termination or amendment of the Offer; or

                  (i) all  members  of the Board of  Directors  of the  Company,
         other than two Continuing Directors, shall not have resigned, effective
         upon and subject only to the acceptance for payment by Acquisition  of,
         and deposit by  Acquisition  with the depositary for the Offer of funds
         sufficient  to make payment for, a majority of the  outstanding  Shares
         pursuant to the Offer,  or the Board of Directors of the Company  shall
         not have elected,  effective  upon and subject only to such  acceptance
         and  deposit,  at least  three  individuals  designated  by  Parent  as
         directors of the Company, effective upon such consummation,

which,  in the sole judgment of  Acquisition in any such case, and regardless of
the  circumstances  giving rise to any such  condition,  makes it inadvisable to
proceed with such acceptance for payment or payment.

The  foregoing  conditions  are for the sole benefit of  Acquisition  and may be
asserted or waived by  Acquisition in whole or in part at any time and from time
to time in its  sole  discretion.  The  failure  by  Acquisition  at any time to
exercise  any of the  foregoing  rights shall not be deemed a waiver of any such
right and each such right  shall be deemed an ongoing  right and may be asserted
at any time and from time to time.




                                        4




                    WELSH, CARSON, ANDERSON & STOWE VII, L.P.
                         WCAS CAPITAL PARTNERS III, L.P.



                                  July 8, 1997




CDSI Holding Corporation
320 Park Avenue, Suite 2500
New York, N.Y. 10022

                           Control Data Systems, Inc.
                           --------------------------

Dear Sirs:

                  We refer to the  Agreement  and Plan of Merger dated as of the
date hereof (the "Merger Agreement") among CDSI Holding Corporation,  a Delaware
corporation   ("Holding"),   CDSI  Acquisition  Corp.,  a  Delaware  corporation
("Acquisition"),  and Control Data Systems,  Inc., a Delaware  corporation  (the
"Company"),  providing for a tender offer by Acquisition  for all the issued and
outstanding   capital  stock  of  the  Company  and  the  subsequent  merger  of
Acquisition  with and into the  Company.  Terms used herein which are defined in
the Merger Agreement and not otherwise  defined herein shall have the respective
meanings assigned to them therein. The undersigned,  Welsh,  Carson,  Anderson &
Stowe VII,  L.P.,  a Delaware  limited  partnership  ("WCAS  VII"),  is the sole
stockholder of Holding, and Acquisition is a wholly-owned subsidiary of Holding.
The undersigned WCAS Capital Partners III, L.P., a Delaware  corporation  ("WCAS
CP III" and,  collectively  with WCAS VII,  the  Partnerships)  is under  common
control with WCAS VII.

                  This  will  confirm  our  agreement   that,   (i)  subject  to
satisfaction  of the Minimum  Condition  and the other  conditions  set forth in
Annex I to the Merger  Agreement,  the Partnerships will provide (or cause to be
provided) cash financing to Holding,  for transfer to Acquisition,  in an amount
sufficient to permit  Acquisition to purchase and pay for all Shares tendered in
the Offer, and (ii) subject to satisfaction of the conditions to the obligations
of Holding and  Acquisition  contained in Section 7.01 of the Merger  Agreement,
the  Partnerships  will  provide (or cause to be  provided)  cash  financing  to
Holding in an amount  sufficient  to permit it to convert the Shares (other than
Shares then held by Acquisition)  to cash in the Merger,  in each case up to the
maximum amount of financing for each Partnership hereinbelow provided.





<PAGE>



                  The form of the securities to be acquired by the  Partnerships
in connection  with such financing shall be determined by the  Partnerships  and
CDSI in their  discretion,  subject to compliance with applicable  laws, but the
amount of financing so provided (or caused to be provided) by WCAS VII shall not
exceed $200  million,  and the amount so provided  (or caused to be provided) by
WCAS CP III shall not exceed $100 million. The obligation of the Partnerships to
provide (or cause to be provided) such financing shall be several and not joint,
but no failure by one  Partnership  shall  relieve the other of its  obligations
hereunder.  In the event  that WCAS VII or WCAS CP III shall  arrange  for other
parties to provide a portion of the financing committed for by it hereunder, any
such  arrangement  shall  not  relieve  such  Partnership  from its  obligations
hereunder,  subject only to the conditions  hereinbefore  stated, to provide (or
cause to be provided) such financing.

                  This letter is intended to be for the benefit of the  Company,
and may be  enforced by the Company as a  third-party  beneficiary.  This letter
shall be governed by and construed in  accordance  with the laws of the State of
New York.


                                Very truly yours,

                                WELSH, CARSON, ANDERSON & STOWE
                                  VII, L.P.
                                By WCAS VII PARTNERS, L.P., General
                                  Partner



                                By   /s/ Thomas E. McInerney
                                     ------------------------------------------
                                           General Partner

                                WCAS CAPITAL PARTNERS III, L.P.
                                By WCAS CP III ASSOCIATES L.L.C.,
                                           General Partner



                                By   /s/ Thomas E. McInerney
                                     ------------------------------------------
                                           Managing Member






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