CRAY RESEARCH INC
SC 14D1, 1996-02-29
ELECTRONIC COMPUTERS
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<PAGE>
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                 SCHEDULE 14D-1
              TENDER OFFER STATEMENT PURSUANT TO SECTION 14(D)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                            ------------------------
 
                              CRAY RESEARCH, INC.
 
                           (Name of Subject Company)
 
                           C ACQUISITION CORPORATION
                             SILICON GRAPHICS, INC.
                                    (Bidder)
 
                         Common Stock, $1.00 par value
                    (including Common Stock Purchase Rights
                          issued with respect thereto)
                         (Title of Class of Securities)
 
                                  225224 10 4
                     (CUSIP Number of Class of Securities)
 
                                William M. Kelly
                 Vice President, General Counsel and Secretary
                             Silicon Graphics, Inc.
                         2011 North Shoreline Boulevard
                      Mountain View, California 94043-1389
                           Telephone: (415) 933-1440
          (Name, Address and Telephone Number of Person Authorized to
            Receive Notices and Communications on Behalf of Bidder)
 
                                    Copy to:
                            Michael J. Kennedy, Esq.
                              Shearman & Sterling
                             555 California Street
                      San Francisco, California 94104-1522
                           Telephone: (415) 616-1100
 
                               February 29, 1996
                            ------------------------
 
                           CALCULATION OF FILING FEE
 
<TABLE>
<S>                                    <C>
          Transaction Value                    Amount of Filing Fee
           $576,562,050(1)                          $115,313(2)
<FN>
 
/ /  Check  box if any part of the fee  is offset as provided by Rule 0-11(a)(2)
     and identify the filing with which the offsetting fee was previously  paid.
     Identify  the previous filing by registration statement number, or the Form
     or Schedule and the date of its filing.
Amount Previously Paid:                        Filing Party:
Form or Registration No.:                      Date Filed:
</TABLE>
 
- - - - ------------------------
(1) Calculated  by multiplying  $30.00, the  per share  tender offer  price,  by
    19,218,735, the number of shares of Common Stock sought in the Offer.
 
(2) 1/50 of 1% of Transaction Valuation.
 
- - - - --------------------------------------------------------------------------------
- - - - --------------------------------------------------------------------------------
<PAGE>
    This  Tender Offer Statement on Schedule  14D-1 (the "Statement") relates to
the offer by  C Acquisition  Corporation, a corporation  organized and  existing
under  the  laws  of  the  State  of  Delaware  ("Purchaser")  and  wholly owned
subsidiary of  Silicon Graphics,  Inc., a  Delaware corporation  ("Parent"),  to
purchase  19,218,735  shares of  common stock,  par value  $1.00 per  share (the
"Shares"), of Cray Research,  Inc., a corporation  organized and existing  under
the  laws of  the State  of Delaware  (the "Company"),  including the associated
Common Share  Purchase  Rights (the  "Rights")  issued pursuant  to  the  Rights
Agreement,  dated May 15, 1989, between  the Company and Norwest Bank Minnesota,
N.A. (the "Rights Agreement"), at a price of $30.00 per Share, net to the seller
in cash, upon the terms and subject  to the conditions set forth in  Purchaser's
Offer  to Purchase dated February 29, 1996  (the "Offer to Purchase") and in the
related Letter of Transmittal (which together constitute the "Offer"), copies of
which are  attached hereto  as  Exhibits (a)(1)  and (a)(2),  respectively.  All
references  herein  to  the  Rights  include all  benefits  which  may  inure to
stockholders of the  Company pursuant to  the Rights Agreement,  and unless  the
context requires otherwise, all references herein to Shares include the Rights.
 
ITEM 1.  SECURITY AND SUBJECT COMPANY.
 
    (a)  The name of the  subject company is Cray  Research, Inc., a corporation
organized and existing under the  laws of the State  of Delaware, which has  its
principal executive offices at 655A Lone Oak Drive, Eagan, Minnesota 55121.
 
    (b) The class of equity securities and number of shares thereof being sought
are  the common stock, par value $1.00  per share, of the Company and 19,218,735
shares thereof, including the Rights, respectively. The information set forth in
the Introduction  and Section  1  ("Terms of  the Offer;  Proration;  Expiration
Date") of the Offer to Purchase is incorporated herein by reference.
 
    (c)  The information concerning the principal market in which the Shares are
traded and certain high and  low sales prices for  the Shares in such  principal
market  set forth in Section 6 ("Price Range of Shares; Dividends") of the Offer
to Purchase is incorporated herein by reference.
 
ITEM 2.  IDENTITY AND BACKGROUND.
 
    (a)-(d) and  (g)   This Statement  is  filed by  Purchaser and  Parent.  The
information concerning the name, state or other place of organization, principal
business and address of the principal office of each of Purchaser and Parent and
the  information  concerning  the  name,  business  address,  present  principal
occupation or employment  and the name,  principal business and  address of  any
corporation  or other  organization in  which such  employment or  occupation is
conducted, material occupations,  positions, offices or  employments during  the
last  five years and citizenship of each of the executive officers and directors
of Purchaser and Parent are set  forth in the Introduction, Section 8  ("Certain
Information  Concerning Purchaser  and Parent") and  Schedule I of  the Offer to
Purchase and are incorporated herein by reference.
 
    (e) and (f)  During the last five years, none of Purchaser or Parent and, to
the best  knowledge of  Purchaser and  Parent,  none of  the persons  listed  in
Schedule  I  of the  Offer  to Purchase  has been  (i)  convicted in  a criminal
proceeding (excluding  traffic violations  or similar  misdemeanors) or  (ii)  a
party  to a civil proceeding  of a judicial or  administrative body of competent
jurisdiction and as a result of such proceeding was or is subject to a judgment,
decree or final order enjoining future violations of, or prohibiting  activities
subject  to, federal or state  securities laws or finding  any violation of such
laws.
 
ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.
 
    (a) The information set forth in Section 8 ("Certain Information  Concerning
Purchaser  and Parent") and Section 10  ("Background of the Offer; Contacts with
the Company; the Merger Agreement") is incorporated herein by reference.
 
    (b) The  information set  forth  in the  Introduction, Section  7  ("Certain
Information Concerning the Company"), Section 8 ("Certain Information Concerning
Purchaser  and Parent"), Section 10 ("Background of the Offer; Contacts with the
Company; the Merger Agreement") and Section 11 ("Purpose of the Offer; Plans for
the Company  After the  Offer  and the  Merger") of  the  Offer to  Purchase  is
incorporated herein by reference.
<PAGE>
ITEM 4.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
 
    (a)-(c)  The information set forth in Section 9 ("Financing of the Offer and
the Merger") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 5.  PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.
 
    (a)-(e)    The  information  set  forth  in  the  Introduction,  Section  10
("Background of the Offer; Contacts with the Company; the Merger Agreement") and
Section 11 ("Purpose of the Offer; Plans for the Company After the Offer and the
Merger") of the Offer to Purchase is incorporated herein by reference.
 
    (f) and (g)  The information set  forth in Section 13 ("Effect of the  Offer
on  the Market for  Shares, Exchange Listing and  Exchange Act Registration") of
the Offer to Purchase is incorporated herein by reference.
 
ITEM 6.  INTEREST IN SECURITIES OF THE SUBJECT COMPANY.
 
    (a) and (b)   The information set forth  in Section 8 ("Certain  Information
Concerning  Purchaser  and Parent")  of the  Offer  to Purchase  is incorporated
herein by reference.
 
ITEM 7.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO THE SUBJECT COMPANY'S SECURITIES.
 
    The  information  set  forth  in  the  Introduction,  Section  8   ("Certain
Information  Concerning Purchaser and  Parent"), Section 10  ("Background of the
Offer; Contacts  with  the  Company;  the  Merger  Agreement")  and  Section  11
("Purpose  of the Offer; Plans for the  Company After the Offer and the Merger")
of the Offer to Purchase is incorporated herein by reference.
 
ITEM 8.  PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.
 
    The information set  forth in  the Introduction  and Section  16 ("Fees  and
Expenses") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 9.  FINANCIAL STATEMENTS OF CERTAIN BIDDERS.
 
    The  information  set forth  in Section  8 ("Certain  Information Concerning
Purchaser and  Parent") of  the  Offer to  Purchase  is incorporated  herein  by
reference.
 
ITEM 10.  ADDITIONAL INFORMATION.
 
    (a) Not applicable.
 
    (b) and  (c) The information set forth in Section 15 ("Certain Legal Matters
        and Regulatory  Approvals") of  the Offer  to Purchase  is  incorporated
        herein by reference.
 
    (d) Not applicable.
 
    (e) Not applicable.
 
    (f)  The  information set  forth in  the Offer  to Purchase  is incorporated
herein by reference.
 
ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.
 
    (a)(1) Form of Offer to Purchase dated February 29, 1996
 
    (a)(2) Form of Letter of Transmittal
 
    (a)(3) Form of Notice of Guaranteed Delivery
 
    (a)(4) Form of Letter from Unterberg Harris to Brokers, Dealers,  Commercial
           Banks, Trust Companies and Nominees
 
    (a)(5) Form  of  Letter  from  Brokers,  Dealers,  Commercial  Banks,  Trust
           Companies and Nominees to Clients
 
    (a)(6) Form of  Guidelines  for  Certification  of  Taxpayer  Identification
           Number on Substitute Form W-9
 
    (a)(7)  Summary Advertisement  as published  in THE  WALL STREET  JOURNAL on
February 29, 1996
 
    (a)(8) Press Release issued by Parent and the Company on February 26, 1996
<PAGE>
    (b)   Not applicable
 
    (c)   Agreement and Plan  of Merger,  dated as  of January  25, 1996,  among
          Parent, Purchaser and the Company
 
    (d)   None
 
    (e)   Not applicable
 
    (f)   None
 
                                   SIGNATURE
 
    After due 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.
 
<TABLE>
<S>                                             <C>
February 29, 1996                               C ACQUISITION CORPORATION
</TABLE>
 
                                          By        /S/ WILLIAM M. KELLY
 
                                            ------------------------------------
                                                      William M. Kelly
                                                       VICE PRESIDENT
 
                                          SILICON GRAPHICS, INC.
 
                                          By        /S/ WILLIAM M. KELLY
 
                                            ------------------------------------
                                                      William M. Kelly
                                            VICE PRESIDENT, GENERAL COUNSEL AND
                                                         SECRETARY
<PAGE>
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
  EXHIBIT
    NO.                                                   ITEM
- - - - -----------  -----------------------------------------------------------------------------------------------
<S>          <C>
    (a)(1)   Form of Offer to Purchase dated February 29, 1996
    (a)(2)   Form of Letter of Transmittal
 (a)(3)      Form of Notice of Guaranteed Delivery
 (a)(4)      Form of Letter from Unterberg Harris to Brokers, Dealers, Commercial Banks, Trust Companies and
              Nominees
 (a)(5)      Form of Letter from Brokers, Dealers, Commercial Banks, Trust Companies and Nominees to Clients
 (a)(6)      Form of Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9
 (a)(7)      Summary Advertisement as published in THE WALL STREET JOURNAL on February 29, 1996
 (a)(8)      Press Release issued by Silicon Graphics, Inc. and Cray Research, Inc. on February 26, 1996
 (b)         Not applicable
 (c)         Agreement and Plan of Merger, dated as of February 25, 1996, among Silicon Graphics, Inc., C
              Acquisition Corporation and Cray Research, Inc.
 (d)         None
 (e)         Not applicable
 (f)         None
</TABLE>

<PAGE>
                           OFFER TO PURCHASE FOR CASH
                       19,218,735 SHARES OF COMMON STOCK
                  (INCLUDING THE COMMON SHARE PURCHASE RIGHTS)
 
                                       OF
                              CRAY RESEARCH, INC.
                                       AT
                              $30.00 NET PER SHARE
                                       BY
                           C ACQUISITION CORPORATION
                          A WHOLLY OWNED SUBSIDIARY OF
 
                             SILICON GRAPHICS, INC.
 
        THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON WEDNESDAY, MARCH 27, 1996,
                         UNLESS THE OFFER IS EXTENDED.
 
    THE  OFFER  IS CONDITIONED  UPON, AMONG  OTHER  THINGS, THERE  BEING VALIDLY
TENDERED AND NOT  WITHDRAWN PRIOR  TO THE  EXPIRATION OF  THE OFFER  AT LEAST  A
MAJORITY OF THE SHARES OUTSTANDING ON A FULLY DILUTED BASIS.
                            ------------------------
 
    THE  BOARD OF DIRECTORS  OF CRAY RESEARCH,  INC. (THE "COMPANY") UNANIMOUSLY
HAS APPROVED AND ADOPTED THE MERGER AGREEMENT AND THE TRANSACTIONS  CONTEMPLATED
THEREBY,  INCLUDING THE  OFFER AND THE  MERGER, AND  UNANIMOUSLY RECOMMENDS THAT
STOCKHOLDERS ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO THE OFFER.
                            ------------------------
 
                                   IMPORTANT
 
    Any stockholder desiring to tender all or any portion of such  stockholder's
shares of common stock, par value $1.00 per share (the "Shares"), of the Company
should  either (i) complete and  sign the Letter of  Transmittal (or a facsimile
thereof) in accordance with  the instructions in the  Letter of Transmittal  and
mail  or deliver it together with the certificate(s) evidencing tendered Shares,
and any  other required  documents,  to the  Depositary  or tender  such  Shares
pursuant to the procedure for book-entry transfer set forth in Section 3 or (ii)
request  such stockholder's  broker, dealer,  commercial bank,  trust company or
other nominee to effect  the transaction for  such stockholder. Any  stockholder
whose  Shares are registered in  the name of a  broker, dealer, commercial bank,
trust company  or other  nominee must  contact such  broker, dealer,  commercial
bank,  trust company or other nominee if such stockholder desires to tender such
Shares.
 
    A stockholder who desires to tender Shares and whose certificates evidencing
such Shares  are  not immediately  available,  or  who cannot  comply  with  the
procedure  for book-entry transfer on a timely  basis, may tender such Shares by
following the procedure for guaranteed delivery set forth in Section 3.
 
    Questions or  requests for  assistance may  be directed  to the  Information
Agent  or  to 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  the  Notice  of
Guaranteed  Delivery may also be obtained from the Information Agent, the Dealer
Manager or from brokers, dealers, commercial banks or trust companies.
                            ------------------------
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                UNTERBERG HARRIS
 
February 29, 1996
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                   PAGE
                                                                                                                   -----
<C>        <S>                                                                                                  <C>
INTRODUCTION..................................................................................................           1
       1.  Terms of the Offer; Proration; Expiration Date.....................................................           2
       2.  Acceptance for Payment and Payment for Shares......................................................           4
       3.  Procedures for Accepting the Offer and Tendering Shares............................................           5
       4.  Withdrawal Rights..................................................................................           8
       5.  Certain Federal Income Tax Consequences............................................................           8
       6.  Price Range of Shares; Dividends...................................................................           9
       7.  Certain Information Concerning the Company.........................................................           9
       8.  Certain Information Concerning Purchaser and Parent................................................          11
       9.  Financing of the Offer and the Merger..............................................................          13
      10.  Background of the Offer; Contacts with the Company; the Merger Agreement...........................          13
      11.  Purpose of the Offer; Plans for the Company After the Offer and the Merger.........................          24
      12.  Dividends and Distributions........................................................................          26
      13.  Effect of the Offer on the Market for the Shares, Exchange Listing and Exchange Act Registration...          26
      14.  Certain Conditions of the Offer....................................................................          27
      15.  Certain Legal Matters and Regulatory Approvals.....................................................          29
      16.  Fees and Expenses..................................................................................          31
      17.  Miscellaneous......................................................................................          32
Schedule   Directors and Executive Officers of Parent and Purchaser...........................................         I-1
I.
</TABLE>
<PAGE>
To the Holders of Common Stock of
Cray Research, Inc.:
 
                                  INTRODUCTION
 
    C  Acquisition Corporation, a  corporation organized and  existing under the
laws of the  State of Delaware  ("Purchaser") and a  wholly owned subsidiary  of
Silicon  Graphics, Inc., a corporation organized  and existing under the laws of
the State of Delaware  ("Parent"), hereby offers  to purchase 19,218,735  shares
(the  "Offered Number") of common stock, par value $1.00 per share (the "Company
Common Stock"), of  Cray Research,  Inc., a corporation  organized and  existing
under  the laws of the  State of Delaware (the  "Company"), including the Common
Share Purchase Rights (the "Rights") issued pursuant to the Rights Agreement, as
amended, dated May  15, 1989, between  the Company and  Norwest Bank  Minnesota,
N.A.  (the "Rights Agreement") at a price of $30.00 per Share, net to the seller
in cash, upon the terms and subject to the conditions set forth in this Offer to
Purchase and in the related Letter of Transmittal (which together constitute the
"Offer"). All references  herein to the  Rights include all  benefits which  may
inure  to  stockholders of  the Company  pursuant to  the Rights  Agreement, and
unless the context requires otherwise,  shares of Company Common Stock  together
with the Rights are herein collectively referred to as the "Shares".
 
    Tendering  stockholders  will  not be  obligated  to pay  brokerage  fees or
commissions or, except as otherwise provided  in Instruction 6 of the Letter  of
Transmittal,  stock transfer  taxes with  respect to  the purchase  of Shares by
Purchaser pursuant to the Offer. Purchaser will pay all charges and expenses  of
Unterberg  Harris L.P. ("Unterberg  Harris"), which is  acting as Dealer Manager
for the Offer  (in such  capacity, the  "Dealer Manager"),  Citibank, N.A.  (the
"Depositary") and Georgeson & Company Inc. (the "Information Agent") incurred in
connection with the Offer. See Section 16.
 
    THE BOARD OF DIRECTORS OF THE COMPANY (THE "BOARD") UNANIMOUSLY HAS APPROVED
AND  ADOPTED  THE  MERGER  AGREEMENT (AS  DEFINED  BELOW)  AND  THE TRANSACTIONS
CONTEMPLATED THEREBY,  INCLUDING  THE  OFFER AND  THE  MERGER,  AND  UNANIMOUSLY
RECOMMENDS  THAT STOCKHOLDERS ACCEPT THE OFFER  AND TENDER THEIR SHARES PURSUANT
TO THE OFFER.
 
    SALOMON BROTHERS INC  ("SALOMON BROTHERS")  HAS DELIVERED TO  THE BOARD  ITS
WRITTEN OPINION THAT THE CONSIDERATION TO BE RECEIVED BY THE STOCKHOLDERS OF THE
COMPANY  IN  THE  OFFER AND  THE  MERGER IS  FAIR  TO SUCH  STOCKHOLDERS  FROM A
FINANCIAL POINT OF VIEW. A COPY OF  THE OPINION OF SALOMON BROTHERS, WHICH  SETS
FORTH  THE ASSUMPTIONS  MADE, MATTERS CONSIDERED  AND LIMITATIONS  ON THE REVIEW
UNDERTAKEN   BY   SALOMON    BROTHERS,   IS   CONTAINED    IN   THE    COMPANY'S
SOLICITATION/RECOMMENDATION  STATEMENT ON SCHEDULE 14D-9 (THE "SCHEDULE 14D-9"),
WHICH IS BEING MAILED TO STOCKHOLDERS HEREWITH.
 
    THE OFFER  IS CONDITIONED  UPON,  AMONG OTHER  THINGS, THERE  BEING  VALIDLY
TENDERED  AND NOT  WITHDRAWN PRIOR  TO THE  EXPIRATION OF  THE OFFER  AT LEAST A
MAJORITY OF THE SHARES THEN OUTSTANDING  ON A FULLY DILUTED BASIS (THE  "MINIMUM
CONDITION").  SEE SECTION  14, WHICH  SETS FORTH IN  FULL THE  CONDITIONS TO THE
OFFER.
 
    The Offer is being made pursuant to the Agreement and Plan of Merger,  dated
as  of February 25,  1996 (the "Merger Agreement"),  among Parent, Purchaser and
the Company. The Merger Agreement provides that, among other things, as soon  as
practicable  after  the  purchase  of  Shares  pursuant  to  the  Offer  and the
satisfaction of the other  conditions set forth in  the Merger Agreement and  in
accordance  with the relevant  provisions of the General  Corporation Law of the
State of Delaware ("Delaware Law"), Purchaser  will be merged with and into  the
Company  (the "Merger"). 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.
 
                                       1
<PAGE>
    Following  completion of the Offer, the  remaining Shares are expected to be
converted in the Merger at a one to  one ratio into common stock of Parent,  par
value  $0.001 per  share ("Parent Common  Stock"). As  more completely described
below, if fewer than 19,218,735  of the Shares are  purchased in the Offer,  the
remaining  Company stockholders will receive in the Merger a fraction of a share
of Parent Common Stock and  cash for each Share so  that the aggregate cash  and
stock  consideration paid  in the Merger  is the same  as if the  Offer had been
fully subscribed. At the  effective time of the  Merger (the "Effective  Time"),
each Share issued and outstanding immediately prior to the Effective Time (other
than Shares held in the treasury of the Company or owned by Purchaser, Parent or
any  direct or  indirect wholly  owned subsidiary  of Parent  or of  the Company
(collectively, "Ineligible Shares"), and other than Shares held by  stockholders
who  shall have demanded and perfected  appraisal rights, if any, under Delaware
Law) will be cancelled and converted automatically into the right to receive (i)
1.00 fully paid and non-assessable share  of Parent Common Stock (the  "Exchange
Ratio");  PROVIDED, HOWEVER, that if Purchaser  accepts for payment and pays for
fewer than 19,218,735 Shares in the Offer (the number of Shares so accepted  for
payment  and paid for being referred to  herein as the "Accepted Share Number"),
then the Exchange Ratio shall be equal to a fraction, (A) the numerator of which
is equal  to (x)  the number  of  outstanding Shares  immediately prior  to  the
Effective  Time (excluding  Ineligible Shares) (the  "Final Outstanding Number")
PLUS (y) the  Accepted Share Number  MINUS (z)  the Offered Number  and (B)  the
denominator  of which is the  Final Outstanding Number and  (ii) if the Exchange
Ratio has been adjusted pursuant to the immediately preceding PROVISO, an amount
in cash equal to a  fraction, (A) the numerator of  which is the product of  the
$30.00 (such amount, or any greater amount per Share paid pursuant to the Offer,
being hereinafter referred to as the "Per Share Amount") and the amount by which
the  Offered Number exceeds the Accepted Share Number and (B) the denominator of
which is  the Final  Outstanding  Number. The  Merger  Agreement is  more  fully
described in Section 10.
 
    The  Merger Agreement provides that, promptly upon the purchase by Purchaser
of Shares pursuant  to the  Offer and from  time to  time thereafter,  Purchaser
shall be entitled to designate up to such number of directors, rounded up to the
next  whole number, on  the Board as  will give Purchaser  representation on the
Board equal to the product of the number of directors on the Board multiplied by
the percentage that the  aggregate number of Shares  then beneficially owned  by
Purchaser  and its affiliates following such  purchase bears to the total number
of Shares then outstanding. In the  Merger Agreement, the Company has agreed  to
take  all  actions necessary  to cause  Purchaser's designees  to be  elected as
directors of the Company, including increasing the size of the Board or securing
the resignations of incumbent directors or both.
 
    The consummation of the Merger is  subject to the satisfaction or waiver  of
certain  conditions, including the approval and adoption of the Merger Agreement
by the requisite  vote of the  stockholders of  the Company. See  Section 11.  A
proxy  statement (which will also constitute  a prospectus for the Parent Common
Stock issuable in  the Merger)  containing detailed  information concerning  the
Merger  will be furnished  to stockholders of  the Company in  connection with a
special meeting to be  called by the  Company to vote  on the Merger.  Purchaser
will  vote all  Shares acquired pursuant  to the  Offer in favor  of the Merger.
Under  the  Company's  Certificate  of  Incorporation  and  Delaware  Law,   the
affirmative  vote of  the holders  of a  majority of  the outstanding  Shares is
required to approve and adopt the Merger Agreement and the Merger. Consequently,
if Purchaser acquires (pursuant to the  Offer or otherwise) at least a  majority
of  the  outstanding  Shares, Purchaser  will  have sufficient  voting  power to
approve and adopt the Merger  Agreement and the Merger  without the vote of  any
other stockholder.
 
    THIS  OFFER  TO  PURCHASE  AND THE  RELATED  LETTER  OF  TRANSMITTAL CONTAIN
IMPORTANT INFORMATION WHICH  SHOULD BE  READ BEFORE  ANY DECISION  IS MADE  WITH
RESPECT TO THE OFFER.
 
    1.   TERMS  OF THE OFFER;  PRORATION; EXPIRATION  DATE.  Upon  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
 
                                       2
<PAGE>
or  amendment), Purchaser will accept for payment and pay for all Shares validly
tendered prior to the Expiration Date (as hereinafter defined) and not withdrawn
as permitted by Section 4. The term "Expiration Date" means 12:00 midnight,  New
York  City time,  on Wednesday, March  27, 1996; PROVIDED,  HOWEVER, that Parent
may, in its  sole discretion (but  subject to  the terms and  conditions of  the
Merger  Agreement), extend the period  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 Purchaser, shall expire.
 
    If  more than 19,218,735 Shares are validly tendered prior to the Expiration
Date and  not withdrawn,  Purchaser will,  upon  the terms  and subject  to  the
conditions  of the Offer,  accept such Shares  for payment on  a PRO RATA basis,
with adjustments to avoid purchases of fractional Shares, based upon the  number
of Shares validly tendered prior to the Expiration Date and not withdrawn.
 
    Because  of the  difficulty of  determining precisely  the number  of Shares
validly tendered and not  withdrawn, if proration  is required, Purchaser  would
not  expect to announce the final results of proration until approximately seven
New York  Stock  Exchange  ("NYSE")  trading days  after  the  Expiration  Date.
Preliminary  results of proration will be announced by press release as promptly
as practicable after  the Expiration  Date. Holders  of Shares  may obtain  such
preliminary information from the Depositary, and may also be able to obtain such
preliminary  information  from their  brokers. Purchaser  will  not pay  for any
Shares accepted for  payment pursuant  to the  Offer until  the final  proration
factor is known.
 
    Purchaser  expressly reserves the right, in its sole discretion (but subject
to the terms and conditions of the Merger Agreement), at any time and from  time
to  time, to extend for any reason the  period of time during which the Offer is
open, including the occurrence of any of the conditions specified in Section 14,
by giving oral or written notice of such extension to the Depositary. During any
such extension, all  Shares previously  tendered and not  withdrawn will  remain
subject  to  the Offer,  subject to  the  rights of  a tendering  stockholder to
withdraw his Shares. See Section 4.
 
    Subject to  the  applicable  regulations  of  the  Securities  and  Exchange
Commission  (the "Commission"), Purchaser also  expressly reserves the right, in
its sole  discretion (but  subject to  the terms  and conditions  of the  Merger
Agreement),  at any  time and  from time  to time,  (i) to  delay acceptance for
payment of, or, regardless of whether such Shares were theretofore accepted  for
payment,  payment for,  any Shares  pending receipt  of any  regulatory approval
specified in Section 15, (ii) to terminate the Offer and not accept for  payment
any  Shares upon the occurrence of any of the conditions specified in Section 14
and (iii) to waive any condition or otherwise amend the Offer in any respect, by
giving oral or written notice of such delay, termination, waiver or amendment to
the Depositary and by making a public announcement thereof. The Merger Agreement
provides that,  without the  consent  of the  Company,  Purchaser will  not  (i)
decrease the price per Share payable pursuant to the Offer, (ii) change the form
of  consideration to be paid in the Offer,  (iii) reduce the number of Shares to
be purchased in the  Offer, (iv) change  or waive the  Minimum Condition or  (v)
modify  the conditions to the Offer set forth in Section 14 or impose conditions
to  the  Offer  in  addition  to  those  set  forth  in  Section  14.  Purchaser
acknowledges  that (i) Rule 14e-1(c) under  the Securities Exchange Act of 1934,
as amended (the  "Exchange Act"),  requires Purchaser to  pay the  consideration
offered  or  return  the  Shares  tendered  promptly  after  the  termination or
withdrawal of the Offer and (ii) Purchaser may not delay acceptance for  payment
of,  or payment for (except  as provided in clause (i)  of the first sentence of
this paragraph),  any  Shares upon  the  occurrence  of any  of  the  conditions
specified  in Section 14 without  extending the period of  time during which the
Offer is open.
 
    Any such extension, delay, termination, waiver or amendment will be followed
as promptly as practicable by public announcement thereof, such announcement  in
the case of an extension to be made no later than 9:00 a.m., New York City time,
on the next business day after the previously scheduled Expiration Date. Subject
to applicable law (including Rules 14d-4(c) and 14d-6(d) under the Exchange Act,
which  require that material changes be promptly disseminated to stockholders in
a manner  reasonably  designed to  inform  them  of such  changes)  and  without
limiting the manner in
 
                                       3
<PAGE>
which Purchaser may choose to make any public announcement, Purchaser shall have
no  obligation to  publish, advertise or  otherwise communicate  any such public
announcement other  than  by issuing  a  press release  to  the Dow  Jones  News
Service.
 
    If  Purchaser  makes a  material change  in the  terms of  the Offer  or the
information concerning the Offer,  or if it waives  a material condition of  the
Offer,  Purchaser will extend the Offer to the extent required by Rules 14d-4(c)
and 14d-6(d) under the Exchange Act.
 
    Subject to the terms  of the Merger Agreement,  if, prior to the  Expiration
Date, Purchaser should decide to increase or decrease the number of Shares being
sought  or to increase or decrease the consideration being offered in the Offer,
such increase or decrease in the number of Shares being sought or such  increase
or  decrease  in  the consideration  being  offered  will be  applicable  to all
stockholders whose Shares are accepted for payment pursuant to the Offer and, if
at the time notice of any such decrease in the number of Shares being sought  or
such increase or decrease in the consideration being offered is first published,
sent or given to holders of such Shares, the Offer is scheduled to expire at any
time earlier than the period ending on the tenth business day from and including
the  date that such notice is first so  published, sent or given, the Offer will
be extended at least until the expiration  of such ten business day period.  For
purposes  of the Offer,  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, New York City time.
 
    The  Company has provided Purchaser with  the Company's stockholder list and
security position listings for the purpose of disseminating the Offer to holders
of Shares. This Offer to Purchase and the related Letter of Transmittal will  be
mailed  to  record  holders  of  Shares  whose  names  appear  on  the Company's
stockholder list and will be furnished, for subsequent transmittal to beneficial
owners of Shares,  to brokers,  dealers, commercial banks,  trust companies  and
similar  persons whose  names, or  the names  of whose  nominees, appear  on the
stockholder list or, if applicable, who are listed as participants in a clearing
agency's security position listing.
 
    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), Purchaser
will accept for payment, and will pay for, all Shares validly tendered prior  to
the Expiration Date and not properly withdrawn promptly after the later to occur
of (i) the Expiration Date, (ii) the expiration or termination of any applicable
waiting  periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended  (the  "HSR  Act"), and  (iii)  the  satisfaction or  waiver  of  the
conditions  to the Offer set forth in Section 14. Subject to applicable rules of
the Commission, Purchaser expressly reserves  the right to delay acceptance  for
payment  of, or payment for, Shares  pending receipt of any regulatory approvals
specified in Section 15 or in order to comply in whole or in part with any other
applicable law.
 
    Parent intends to file with the Federal Trade Commission (the "FTC") and the
Antitrust Division of  the Department  of Justice (the  "Antitrust Division")  a
Premerger  Notification and Report  Form under the  HSR Act with  respect to the
Offer. Parent currently intends to file this document by a date that would allow
the applicable HSR waiting period for the  Offer to expire on or prior to  11:59
p.m., New York City time, on March 27, 1996. Absent any action by the FTC or the
Antitrust Division, the waiting period under the HSR Act applicable to the Offer
will expire at 11:59 p.m., New York City time, on the 15th day after the date of
this  filing. Prior to the expiration or termination of such waiting period, the
FTC or  the Antitrust  Division may  extend such  waiting period  by  requesting
additional  information from Parent with respect to the Offer. If such a request
is made with respect to the purchase of Shares in the Offer, the waiting  period
will  expire at 11:59 p.m., New York City  time, on the tenth calendar day after
substantial compliance by Parent  with such a  request. Thereafter, the  waiting
period may only be extended by court order. The waiting period under the HSR Act
may be terminated prior to its expiration by the FTC and the Antitrust Division.
Parent  intends to  request early  termination of  the waiting  period, although
there can be no assurance that this request will be granted. See Section 15  for
additional information regarding the HSR Act.
 
                                       4
<PAGE>
    In  all cases, payment for Shares tendered and accepted for payment pursuant
to the Offer will be made only after timely receipt by the Depositary of (i) the
certificates  evidencing  such  Shares  (the  "Share  Certificates")  or  timely
confirmation  (a  "Book-Entry Confirmation")  of a  book-entry transfer  of such
Shares into the  Depositary's account  at The  Depository Trust  Company or  the
Philadelphia  Depository Trust  Company (each, a  "Book-Entry Transfer Facility"
and,  collectively,  the  "Book-Entry  Transfer  Facilities")  pursuant  to  the
procedures  set  forth  in Section  3,  (ii)  the Letter  of  Transmittal  (or a
facsimile thereof),  properly completed  and duly  executed, 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.
 
    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 a
Book-Entry Confirmation, which states that such Book-Entry Transfer Facility has
received an  express acknowledgement  from the  participant in  such  Book-Entry
Transfer  Facility tendering the Shares, that  such participant has received and
agrees to be bound by the terms of the Letter of Transmittal and that  Purchaser
may enforce such agreement against such participant.
 
    For  purposes of the  Offer, Purchaser will  be deemed to  have accepted for
payment (and  thereby  purchased)  Shares  validly  tendered  and  not  properly
withdrawn  as,  if  and when  Purchaser  gives  oral or  written  notice  to the
Depositary of Purchaser's acceptance for payment of such Shares pursuant to  the
Offer.  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 of the
purchase price  therefor  with the  Depositary,  which  will act  as  agent  for
tendering  stockholders for the purpose of receiving payments from Purchaser and
transmitting such  payments to  tendering stockholders  whose Shares  have  been
accepted  for payment. Payment  for Shares accepted for  payment pursuant to the
Offer may  be  delayed in  the  event of  proration  due to  the  difficulty  of
determining the number of shares validly tendered and not withdrawn. See Section
1.  Under no  circumstances will  interest on the  purchase price  for Shares be
paid, regardless of any delay in making such payment.
 
    If any tendered Shares are not accepted for payment for any reason  pursuant
to the terms and conditions of the Offer (including because of proration), Share
Certificates  evidencing unpurchased Shares will be returned, without expense to
the tendering stockholder  (or, in  the case  of Shares  tendered by  book-entry
transfer  into  the  Depositary's  account  at  a  Book-Entry  Transfer Facility
pursuant to the procedure set forth in  Section 3, such Shares will be  credited
to  an account maintained at such  Book-Entry Transfer Facility), as promptly as
practicable following the expiration or termination of the Offer.
 
    Purchaser reserves the right to transfer or assign, in whole or from time to
time in part, to one or more of its 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 Purchaser of  its obligations under  the Offer and
will in no way prejudice the rights of tendering stockholders to receive payment
for Shares validly tendered and accepted for payment pursuant to the Offer.
 
    3.  PROCEDURES FOR ACCEPTING THE OFFER AND TENDERING SHARES.  In order for a
holder of Shares validly to tender Shares  pursuant to the Offer, the Letter  of
Transmittal  (or  a facsimile  thereof), properly  completed and  duly executed,
together with  any  required signature  guarantees,  or an  Agent's  Message  in
connection  with  a  book-entry  delivery of  Shares,  and  any  other documents
required by the Letter of Transmittal, must be received by the Depositary at one
of its addresses  set forth  on the  back cover of  this Offer  to Purchase  and
either (i) the Share Certificates evidencing tendered Shares must be received by
the  Depositary at such address or such  Shares must be tendered pursuant to the
procedure for book-entry transfer described below and a Book-Entry  Confirmation
must  be received by the Depositary, in  each case prior to the Expiration Date,
or (ii)  the tendering  stockholder  must comply  with the  guaranteed  delivery
procedures described below.
 
                                       5
<PAGE>
    THE  METHOD  OF  DELIVERY  OF  SHARE  CERTIFICATES  AND  ALL  OTHER REQUIRED
DOCUMENTS, INCLUDING DELIVERY  THROUGH ANY BOOK-ENTRY  TRANSFER FACILITY, IS  AT
THE  OPTION AND  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.
 
    BOOK-ENTRY TRANSFER.  The Depositary will establish accounts with respect to
the  Shares  at 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  the system  of any  Book-Entry  Transfer
Facility  may make  a book-entry delivery  of Shares by  causing such Book-Entry
Transfer Facility to transfer such Shares into the Depositary's account at  such
Book-Entry  Transfer  Facility  in  accordance  with  such  Book-Entry  Transfer
Facility's procedures for  such transfer. However,  although delivery of  Shares
may  be effected through book-entry transfer  at a Book-Entry Transfer Facility,
the Letter of Transmittal (or a facsimile thereof), properly completed and  duly
executed, together 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 received by  the Depositary at one  of its addresses  set
forth  on the back cover of this Offer to Purchase prior to the Expiration Date,
or the tendering stockholder must comply with the guaranteed delivery  procedure
described  below. DELIVERY OF  DOCUMENTS TO A  BOOK-ENTRY TRANSFER FACILITY DOES
NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.
 
    SIGNATURE GUARANTEES.   Signatures  on all  Letters of  Transmittal must  be
guaranteed  by a  firm which  is a member  of the  Medallion Signature Guarantee
Program, or  by any  other "eligible  guarantor institution",  as such  term  is
defined  in Rule 17Ad-15 under  the Securities Exchange Act  of 1934, as amended
(each of the foregoing being referred  to as an "Eligible Institution"),  except
in  cases where Shares are tendered (i) by a registered holder of Shares who has
not completed either the box entitled "Special Payment Instructions" or the  box
entitled  "Special Delivery Instructions"  on the Letter  of Transmittal or (ii)
for the account of an Eligible Institution. If a Share Certificate is registered
in the name of a person  other than the person who  or that signs the Letter  of
Transmittal,  or if payment is  to be made, or  a Share Certificate not accepted
for payment  or not  tendered is  to be  returned, to  a person  other than  the
registered holder(s), then the Share Certificate must be endorsed or accompanied
by appropriate stock powers, in either case signed exactly as the name(s) of the
registered  holder(s) appear on the Share  Certificate, with the signature(s) on
such Share Certificate or  stock powers guaranteed  by an Eligible  Institution.
See Instructions 1 and 5 of the Letter of Transmittal.
 
    GUARANTEED  DELIVERY.  If a stockholder desires to tender Shares pursuant to
the Offer and such stockholder's  Share Certificates evidencing such Shares  are
not   immediately  available  or  such  stockholder  cannot  deliver  the  Share
Certificates and all  other required documents  to the Depositary  prior to  the
Expiration  Date, or such stockholder cannot complete the procedure for delivery
by book-entry  transfer on  a  timely basis,  such  Shares may  nevertheless  be
tendered, provided that all the following conditions are satisfied:
 
           (i)
           such tender is made by or through an Eligible Institution;
 
          (ii)
           a properly completed and duly executed Notice of Guaranteed Delivery,
           substantially in the form made available by Purchaser, is received by
    the Depositary prior to the Expiration Date as provided below; and
 
         (iii)
           the  Share Certificates (or a Book-Entry Confirmation) evidencing all
           tendered Shares, in proper form  for transfer, in each case  together
    with  the Letter of Transmittal (or a facsimile thereof), properly completed
    and duly executed, with any required  signature guarantees (or, in the  case
    of  a  book-entry transfer,  an Agent's  Message),  and any  other documents
    required by the Letter of Transmittal are received by the Depositary  within
    three  New York Stock Exchange, Inc. ("NYSE") trading days after the date of
    execution of such Notice of Guaranteed Delivery.
 
                                       6
<PAGE>
    The Notice  of Guaranteed  Delivery may  be  delivered by  hand or  mail  or
transmitted  by telegram  or facsimile transmission  to the  Depositary and must
include a guarantee by an Eligible Institution in the form set forth in the form
of Notice of Guaranteed Delivery made available by Purchaser.
 
    In all cases, payment for Shares tendered and accepted for payment  pursuant
to  the Offer will  be made only after  timely receipt by  the Depositary of the
Share Certificates evidencing such Shares,  or a Book-Entry Confirmation of  the
delivery of such Shares, and the Letter of Transmittal (or a facsimile thereof),
properly  completed and  duly executed,  with any  required signature guarantees
(or, in the case of  a book-entry transfer, an  Agent's Message), and any  other
documents required by the Letter of Transmittal.
 
    DETERMINATION  OF  VALIDITY.    All  questions  as  to  the  validity, form,
eligibility (including time of receipt) and acceptance for payment of any tender
of Shares  will  be  determined  by Purchaser  in  its  sole  discretion,  which
determination  shall be final and binding on all parties. Purchaser reserves the
absolute right to  reject any  and all  tenders determined by  it not  to be  in
proper  form or the acceptance  for payment of which may,  in the opinion of its
counsel, be unlawful. Purchaser  also reserves the absolute  right to waive  any
condition  of the  Offer or  any defect  or irregularity,  in the  tender of any
Shares of  any  particular  stockholder,  whether  or  not  similar  defects  or
irregularities are waived in the case of other stockholders. No tender of Shares
will  be deemed to have  been validly made until  all defects and irregularities
have been cured or  waived. None of Purchaser,  Parent, the Dealer Manager,  the
Depositary,  the Information Agent 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. 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.
 
    OTHER  REQUIREMENTS.   By executing the  Letter of Transmittal  as set forth
above, a tendering  stockholder irrevocably appoints  designees of Purchaser  as
such  stockholder's proxies, each with full power of substitution, in the manner
set forth in the Letter of Transmittal, to the full extent of such stockholder's
rights with respect to the Shares tendered by such stockholder and accepted  for
payment  by Purchaser  (and with respect  to any  and all other  Shares or other
securities issued or issuable in respect of such Shares on or after February 25,
1996). All such  proxies shall  be considered coupled  with an  interest in  the
tendered Shares. Such appointment will be effective when, and only to the extent
that,  Purchaser  accepts  such Shares  for  payment. Upon  such  acceptance for
payment, all prior proxies given by such stockholder with respect to such Shares
(and such other Shares and securities)  will be revoked without further  action,
and  no  subsequent proxies  may  be given  nor  any subsequent  written consent
executed by such stockholder (and, if given  or executed, will not be deemed  to
be  effective)  with  respect thereto.  The  designees of  Purchaser  will, with
respect to the Shares  for which the appointment  is effective, be empowered  to
exercise  all voting and other rights of  such stockholder as they in their sole
discretion may deem  proper at any  annual or special  meeting of the  Company's
stockholders  or any adjournment or postponement  thereof, by written consent in
lieu of any such meeting or  otherwise. Purchaser reserves the right to  require
that,  in  order for  Shares  to be  deemed  validly tendered,  immediately upon
Purchaser's payment for  such Shares, Purchaser  must be able  to exercise  full
voting rights with respect to such Shares.
 
    The  acceptance for payment  by Purchaser of  Shares pursuant to  any of the
procedures described  above  will constitute  a  binding agreement  between  the
tendering stockholder and Purchaser upon the terms and subject to the conditions
of the Offer.
 
                                       7
<PAGE>
    UNDER  THE  FEDERAL INCOME  TAX  LAWS, THE  DEPOSITARY  WILL BE  REQUIRED TO
WITHHOLD 31 PERCENT OF THE AMOUNT  OF ANY PAYMENTS MADE TO CERTAIN  STOCKHOLDERS
PURSUANT  TO THE  OFFER. TO PREVENT  BACKUP FEDERAL INCOME  TAX WITHHOLDING WITH
RESPECT TO  PAYMENT TO  CERTAIN STOCKHOLDERS  OF THE  PURCHASE PRICE  OF  SHARES
PURCHASED  PURSUANT  TO  THE  OFFER,  EACH  SUCH  STOCKHOLDER  MUST  PROVIDE THE
DEPOSITARY WITH SUCH  STOCKHOLDER'S CORRECT TAXPAYER  IDENTIFICATION NUMBER  AND
CERTIFY  THAT  SUCH STOCKHOLDER  IS  NOT SUBJECT  TO  BACKUP FEDERAL  INCOME TAX
WITHHOLDING BY COMPLETING THE SUBSTITUTE FORM W-9 IN THE LETTER OF  TRANSMITTAL.
SEE INSTRUCTION 9 OF THE LETTER OF TRANSMITTAL.
 
    4.   WITHDRAWAL RIGHTS.   Tenders of  Shares made pursuant  to the Offer are
irrevocable except that such Shares  may be withdrawn at  any time prior to  the
Expiration  Date  and,  unless  theretofore accepted  for  payment  by Purchaser
pursuant to the Offer, may also be  withdrawn at any time after April 28,  1996.
If  Purchaser extends  the Offer,  is delayed in  its acceptance  for payment of
Shares or is unable to accept Shares  for payment pursuant to the Offer for  any
reason,  then,  without prejudice  to Purchaser's  rights  under the  Offer, the
Depositary may, nevertheless,  on behalf of  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  4.
Any  such delay will be 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 page of this Offer to Purchase.
Any such notice of withdrawal must specify  the name of the person who  tendered
the Shares to be withdrawn, the number of Shares to be withdrawn and the name of
the  registered holder of such Shares, if  different from that of the person who
tendered such Shares. If  Share Certificates evidencing  Shares to be  withdrawn
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 the signature(s)
on  the  notice of  withdrawal must  be guaranteed  by an  Eligible Institution,
unless  such  Shares  have  been  tendered  for  the  account  of  an   Eligible
Institution.  If  Shares  have  been  tendered  pursuant  to  the  procedure for
book-entry transfer as  set forth in  Section 3, any  notice of withdrawal  must
specify  the name and number of the  account at the Book-Entry Transfer Facility
to be credited with the withdrawn Shares,  in which case a notice of  withdrawal
will  be effective if delivered to the Depositary by any method described in the
first sentence of this paragraph.
 
    All questions as to the form and validity (including time of receipt) of any
notice of withdrawal will  be determined by Purchaser,  in its sole  discretion,
whose  determination will be  final and binding. None  of Purchaser, Parent, the
Dealer Manager, the Depositary, the Information  Agent 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.
 
    Any  Shares properly  withdrawn will thereafter  be deemed not  to have been
validly tendered for  purposes of the  Offer. However, withdrawn  Shares may  be
re-tendered  at any time  prior to the  Expiration Date by  following one of the
procedures described in Section 3.
 
    5.  CERTAIN FEDERAL INCOME TAX CONSEQUENCES.  The receipt of cash for Shares
pursuant to the Offer and the receipt of Parent Common Stock or a combination of
Parent Common  Stock  and  cash  pursuant  to  the  Merger  will  be  a  taxable
transaction  for  federal  income  tax  purposes  and  may  also  be  a  taxable
transaction under applicable state, local or foreign tax laws. This will be  the
case  whether a stockholder of  the Company sells Shares  pursuant to the Offer,
the Merger, or both.
 
    A tendering stockholder whose Shares are  accepted for sale pursuant to  the
Offer generally will recognize gain or loss on the date the Offer is consummated
equal  to  the difference  between such  stockholders' tax  basis in  the Shares
accepted for purchase and  the amount of cash  received in exchange therefor.  A
stockholder  who receives Parent Common Stock  or a combination of Parent Common
Stock and cash in exchange for Shares pursuant to the Merger will recognize gain
or loss at the Effective Time in  an amount equal to the difference between  (i)
the sum of the amount of cash and
 
                                       8
<PAGE>
the  fair  market value  of the  Parent Common  Stock, if  any, received  by the
stockholder and (ii) such stockholders' tax basis in the Shares surrendered. The
fair market value of the Parent Common Stock likely will equal the trading value
per share of Parent Common Stock on the date on which the Merger occurs.
 
    Gain or loss will be calculated  separately for each block of Shares  (i.e.,
Shares  purchased at the same time and price) surrendered by a stockholder. Such
gain or loss will be capital gain or  loss if the Shares were capital assets  in
the  hands of the stockholder, and will be long-term capital gain or loss if, at
the time of the exchange, the Shares were held by the stockholder for more  than
one  year. Under present law, long-term capital gains are generally taxable at a
maximum rate of 28% for individuals and 35% for corporations.
 
    THE  FOREGOING  DISCUSSION  MAY  NOT  BE  APPLICABLE  TO  CERTAIN  TYPES  OF
STOCKHOLDERS,  INCLUDING  STOCKHOLDERS  WHO  ACQUIRED  SHARES  PURSUANT  TO  THE
EXERCISE OF EMPLOYEE STOCK OPTIONS OR OTHERWISE AS COMPENSATION, INDIVIDUALS WHO
ARE NOT CITIZENS OR RESIDENTS OF THE UNITED STATES, AND FOREIGN CORPORATIONS.
 
    THE FEDERAL INCOME TAX  DISCUSSION SET FORTH ABOVE  IS INCLUDED FOR  GENERAL
INFORMATION  ONLY  AND IS  BASED  UPON PRESENT  LAW.  STOCKHOLDERS ARE  URGED TO
CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE SPECIFIC TAX CONSEQUENCES OF  THE
OFFER  AND  THE MERGER  TO THEM,  INCLUDING  THE APPLICATION  AND EFFECT  OF THE
ALTERNATIVE MINIMUM TAX, AND STATE, LOCAL AND FOREIGN TAX LAWS.
 
    6.  PRICE RANGE OF SHARES; DIVIDENDS.  The Shares are listed and principally
traded on the NYSE. The following table sets forth, for the quarters  indicated,
the high and low sales prices per Share on the NYSE as reported by the Dow Jones
News  Service. The Company has  not paid any dividends  on the Shares during the
periods set forth below.
 
<TABLE>
<CAPTION>
                                                                              HIGH          LOW
                                                                           -----------  -----------
<S>                                                                        <C>          <C>
1994
  First Quarter..........................................................  $     33-3/4 $     25-3/8
  Second Quarter.........................................................        29-3/4       19-1/8
  Third Quarter..........................................................         24          20-1/4
  Fourth Quarter.........................................................        21-1/2       14-5/8
1995
  First Quarter..........................................................  $     18-5/8 $     14-5/8
  Second Quarter.........................................................         26          18-1/8
  Third Quarter..........................................................        29-1/4       21-3/4
  Fourth Quarter.........................................................        24-7/8       20-1/4
1996
  First Quarter (through February 28, 1996)..............................  $     28-7/8 $      24
</TABLE>
 
    On February 23, 1996, the last full trading day prior to the announcement of
the execution of the Merger Agreement  and of Purchaser's intention to  commence
the  Offer, the closing price per Share as  reported on the NYSE was $25 1/4. On
February 28, 1996, the last full trading day prior to the date of this Offer  to
Purchase, the closing price per Share as reported on the NYSE was $28 5/8.
 
    STOCKHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET QUOTATION FOR THE SHARES.
 
    7.   CERTAIN  INFORMATION CONCERNING THE  COMPANY.  Except  as otherwise set
forth herein, the information concerning the Company contained in this Offer  to
Purchase,  including financial information, has been furnished by the Company or
has been taken from  or based upon publicly  available documents and records  on
file  with the Commission and other public sources. Neither Purchaser nor Parent
assumes any responsibility for the  accuracy or completeness of the  information
concerning  the Company furnished by the  Company or contained in such documents
and records or for any failure by the Company to disclose events which may  have
occurred  or may affect the significance or accuracy of any such information but
which are unknown to Purchaser or Parent.
 
                                       9
<PAGE>
    GENERAL.  The Company is a corporation organized and existing under the laws
of the State of  Delaware with its principal  executive offices located at  655A
Lone  Oak Drive, Eagan, Minnesota, 55121.  The Company is principally engaged in
the development, manufacture and sale of high-performance supercomputer  systems
that  are used  primarily by scientists  and engineers  to perform computational
research. Computational research  allows researchers to  investigate areas  that
are  physically  impossible or  impracticable  to study  in  any other  way. The
Company's computational systems are used in many commercial industries including
aerospace, automotive, chemical/pharmaceutical and petroleum, as well as in many
public and  private  research  centers, such  as  government  and  environmental
science organizations and universities.
 
    FINANCIAL  INFORMATION.   Set forth  below is  certain selected consolidated
financial information relating  to the  Company and its  subsidiaries which  has
been excerpted or derived from the audited financial statements contained in the
Company's  Current Report on Form 8-K, expected to be filed on February 29, 1996
(the "Form 8-K"), and the  Company's Annual Report on  Form 10-K for the  fiscal
year  ended December  31, 1994 (the  "Form 10-K").  More comprehensive financial
information is included  in the  Form 8-K, the  Form 10-K,  and other  documents
filed by the Company with the Commission. The financial information that follows
is  qualified in its entirety by reference  to such reports and other documents,
including the financial  statements and  related notes  contained therein.  Such
reports  and other documents may be examined and copies may be obtained from the
offices of the Commission in the manner set forth below.
 
                              CRAY RESEARCH, INC.
                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
<TABLE>
<CAPTION>
                                                                             FISCAL YEAR ENDED DECEMBER 31,
                                                                       -------------------------------------------
                                                                           1995           1994           1993
                                                                       -------------  -------------  -------------
<S>                                                                    <C>            <C>            <C>
Income Statement Data:
  Total revenue......................................................  $     676,244  $     921,609  $     894,857
  Operating income (loss)............................................       (238,219)        74,472         87,795
  Earnings (Loss) before taxes.......................................       (235,796)        77,733         84,443
  Net earnings (loss)................................................  $    (226,364) $      55,696  $      60,855
                                                                       -------------  -------------  -------------
  Earnings (Loss) per common and common equivalent share.............  $       (8.95) $        2.16  $        2.33
                                                                       -------------  -------------  -------------
  Average number of common and common equivalent shares
   outstanding.......................................................         25,282         25,845         26,118
                                                                       -------------  -------------  -------------
 
<CAPTION>
 
                                                                             AT DECEMBER 31,
                                                                       ----------------------------
                                                                           1995           1994
                                                                       -------------  -------------
<S>                                                                    <C>            <C>            <C>
Balance Sheet Data:
  Current assets.....................................................  $     497,905  $     534,038
  Total assets.......................................................        978,054      1,181,879
  Current liabilities................................................        272,172        237,939
  Long term debt, excluding current installments.....................         92,682         97,000
  Other long term obligations........................................         10,772         18,030
  Stockholders' equity...............................................        602,428        828,910
</TABLE>
 
    In connection with Parent's review of the  Company and in the course of  the
negotiations between the Company and Parent described in Section 10, the Company
provided Parent with certain business and financial information which Parent and
Purchaser  believe  is not  publicly available,  including, among  other things,
financial projections for fiscal 1996 prepared  by management of the Company  in
order to formulate a business plan for 1996 (the "Projections"). The Projections
do  not  take into  account any  of  the potential  effects of  the transactions
contemplated by the Offer and the Merger.
 
                                       10
<PAGE>
    According to the Projections,  the Company has estimated  that it will  have
total  revenue  of $921,702,000  and net  earnings of  $36,902,000 for  the year
ending December 31, 1996.
 
    PROJECTED INFORMATION OF  THIS TYPE  IS BASED ON  ESTIMATES AND  ASSUMPTIONS
THAT   ARE   INHERENTLY  SUBJECT   TO   SIGNIFICANT  ECONOMIC   AND  COMPETITIVE
UNCERTAINTIES AND CONTINGENCIES, ALL OF WHICH ARE DIFFICULT TO PREDICT AND  MANY
OF  WHICH ARE BEYOND THE COMPANY'S CONTROL.  MOREOVER, THE COMPANY OPERATES IN A
HIGHLY COMPETITIVE  ENVIRONMENT THAT  IS RAPIDLY  CHANGING AND  THAT INVOLVES  A
NUMBER  OF RISKS, MANY OF  WHICH ARE BEYOND THE  COMPANY'S CONTROL. THESE RISKS,
WHICH COULD SIGNIFICANTLY AFFECT THE PROJECTIONS, INCLUDE CUTBACKS IN GOVERNMENT
SPENDING, IMPLEMENTATION OF PROTECTIONIST TRADE  POLICIES IN THE U.S. OR  ABROAD
AND  THE RISKS ARISING OUT OF THE FACT THAT SINCE A SMALL NUMBER OF LARGE SYSTEM
SALES COMPRISE A SIGNIFICANT PORTION OF THE COMPANY'S SALES REVENUE, THE  TIMING
OF  EQUIPMENT ACCEPTANCE DATES  ON THESE LARGE  SYSTEMS CAN SIGNIFICANTLY AFFECT
RESULTS FOR ANY PARTICULAR PERIOD. ACCORDINGLY,  THERE CAN BE NO ASSURANCE  THAT
THE  PROJECTED  RESULTS WILL  BE REALIZED  OR  THAT ACTUAL  RESULTS WILL  NOT BE
SIGNIFICANTLY HIGHER  OR LOWER  THAN THOSE  SET FORTH  ABOVE. IN  ADDITION,  THE
PROJECTIONS  WERE NOT  PREPARED WITH A  VIEW TO PUBLIC  DISCLOSURE OR COMPLIANCE
WITH THE PUBLISHED GUIDELINES OF THE COMMISSION OR THE GUIDELINES ESTABLISHED BY
THE AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTS REGARDING PROJECTIONS AND
FORECASTS AND  ARE  INCLUDED  IN  THIS  OFFER  TO  PURCHASE  ONLY  BECAUSE  SUCH
INFORMATION  WAS  MADE  AVAILABLE TO  PARENT  BY  THE COMPANY.  NONE  OF PARENT,
PURCHASER, THE COMPANY  OR ANY OTHER  PARTY ASSUMES ANY  RESPONSIBILITY FOR  THE
ACCURACY OR VALIDITY OF THE FOREGOING PROJECTIONS.
 
    The  Company  is subject  to the  informational  filing 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. Information  as of particular
dates concerning the Company's directors and officers, their remuneration, stock
options granted to them, the principal  holders of the Company's securities  and
any  material  interest of  such  persons in  transactions  with the  Company is
required to  be  disclosed in  proxy  statements distributed  to  the  Company's
stockholders  and filed with the Commission.  Such reports, proxy statements and
other information should  be available  for inspection at  the public  reference
facilities  maintained by the  Commission at Judiciary  Plaza, 450 Fifth Street,
N.W., Room  1024, Washington,  D.C.  20549, and  also  should be  available  for
inspection  at the  Commission's regional offices  located at  Seven World Trade
Center, 13th Floor, New York, New York  10048 and the Citicorp Center, 500  West
Madison  Street, Suite 1400,  Chicago, Illinois 60604.  Copies of such materials
may also be obtained by mail,  upon payment of the Commission's customary  fees,
by  writing to its principal office at  Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549. The information should also be available for  inspection
at the NYSE, 20 Broad Street, New York, New York 10005.
 
    8.   CERTAIN  INFORMATION CONCERNING PURCHASER  AND PARENT.   Purchaser is a
newly incorporated  corporation organized  and existing  under the  laws of  the
State  of Delaware organized in connection with the Offer and the Merger and has
not carried on any activities  other than in connection  with the Offer and  the
Merger.  The principal offices of Purchaser  are located at 2011 North Shoreline
Boulevard,  Mountain  View,  California  94043.  Purchaser  is  a  wholly  owned
subsidiary of Parent.
 
    Until  immediately prior  to the  time that  Purchaser will  purchase Shares
pursuant to  the Offer,  it is  not  anticipated that  Purchaser will  have  any
significant  assets  or liabilities  or engage  in  activities other  than those
incident to its formation and  capitalization and the transactions  contemplated
by  the Offer and the Merger. Because  Purchaser is newly formed and has minimal
assets  and  capitalization,  no  meaningful  financial  information   regarding
Purchaser is available.
 
    Parent  is a corporation organized and existing  under the laws of the State
of  Delaware.  Its  principal  offices  are  located  at  2011  North  Shoreline
Boulevard,  Mountain View, California 94043.  Parent is the leading manufacturer
of  high-performance  visual  computing  systems.  Parent  provides  interactive
three-dimensional  graphics,  digital media  and  multiprocessing supercomputing
technologies to technical, scientific and creative professionals. Parent's  core
technologies -- including interactive three-dimensional graphics, digital media,
RISC  microprocessors  and  symmetric  multiprocessing  --  combine  to  provide
customers with  an  array  of  desktop  graphics  workstations,  multiprocessing
servers, advanced computing platforms and application software.
 
                                       11
<PAGE>
    Parent's  core  computing systems  are  complemented by  several  wholly and
partially owned  subsidiaries.  MIPS  Technologies,  Inc.  ("MTI")  designs  and
licenses  the  MIPS-Registered Trademark-  RISC  microprocessor family,  used in
Parent products and those of other companies for computer, consumer and embedded
control applications. Silicon Studio, Inc. provides software tools, support  and
training  for application and content developers  in the film, video, publishing
and interactive television markets. Alias--Wavefront develops advanced tools for
digital design  and content  creation. Interactive  Digital Solutions,  a  joint
venture,  provides interactive video capabilities  to telephone company networks
and cable TV systems.
 
    The name, citizenship, business address, principal occupation or employment,
and five-year  employment  history  for  each of  the  directors  and  executive
officers  of Purchaser and Parent and certain other information are set forth in
Schedule I hereto.
 
    Set forth below are certain selected consolidated financial data relating to
Parent and its  subsidiaries for Parent's  last three fiscal  years, which  have
been  excerpted or  derived from the  audited financial  statements contained in
Parent's Annual Report on Form 10-K for the fiscal year ended June 30, 1995  and
from  the unaudited financial statements  contained in Parent's Quarterly Report
on Form 10-Q for the fiscal quarter ended December 31, 1995, in each case  filed
by  Parent  with the  Commission.  More comprehensive  financial  information is
included  in  such  reports  and  other  documents  filed  by  Parent  with  the
Commission,  and the  following financial data  is qualified in  its entirety by
reference  to  such  reports  and  other  documents,  including  the   financial
information  and  related  notes  contained  therein.  Such  reports  and  other
documents may be inspected and  copies may be obtained  from the offices of  the
Commission in the same manner as set forth with respect to information about the
Company in Section 7.
 
                             SILICON GRAPHICS, INC.
                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                                       SIX MONTHS ENDED DECEMBER
                                                  FISCAL YEAR ENDED JUNE 30,                      31,
                                          -------------------------------------------  --------------------------
                                              1995           1994           1993           1995          1994
                                          -------------  -------------  -------------  -------------  -----------
<S>                                       <C>            <C>            <C>            <C>            <C>
Income Statement Data:
  Total revenue.........................  $   2,228,268  $   1,537,766  $   1,132,869  $   1,267,012  $   998,074
  Operating income from continuing
   operations...........................        307,272        193,829        119,971        142,890      148,413
  Income before income taxes............        316,719        198,608        120,491        155,930      147,369
  Net income............................  $     224,856  $     141,414  $      82,803  $     110,710  $   104,139
                                          -------------  -------------  -------------  -------------  -----------
  Common shares and common share
   equivalents used in the calculation
   of net income per common share.......        175,435        165,149        154,887        178,268      173,155
                                          -------------  -------------  -------------  -------------  -----------
  Net income per common share from
   continuing operations................  $        1.28  $        0.86  $        0.53  $        0.62  $      0.60
                                          -------------  -------------  -------------  -------------  -----------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                            AT JUNE 30,
                                                                    ----------------------------  AT DECEMBER 31,
                                                                        1995           1994            1995
                                                                    -------------  -------------  ---------------
<S>                                                                 <C>            <C>            <C>
Balance Sheet Data:
  Current assets..................................................  $   1,508,873  $   1,058,033   $   1,497,280
  Total assets....................................................      2,206,619      1,567,052       2,265,487
  Current liabilities.............................................        573,182        377,238         544,628
  Long term debt and other........................................        287,267        252,645         277,575
  Stockholders' equity............................................      1,346,170        937,169       1,443,284
</TABLE>
 
                                       12
<PAGE>
    Except as described in this Offer to Purchase, (i) none of Purchaser, Parent
nor, to the best knowledge of Purchaser and Parent, any of the persons listed in
Schedule  I  to  this  Offer  to Purchase  or  any  associate  or majority-owned
subsidiary of Purchaser,  Parent or any  of the persons  so listed  beneficially
owns  or has any right  to acquire, directly or  indirectly, any Shares and (ii)
none of Purchaser, Parent  nor, to the best  knowledge of Purchaser and  Parent,
any  of the persons  or entities referred  to above nor  any director, executive
officer or subsidiary of  any of the foregoing  has effected any transaction  in
the Shares during the past 60 days.
 
    Except  as provided  in the Merger  Agreement and as  otherwise described in
this Offer to Purchase, none of Purchaser, Parent nor, to the best knowledge  of
Purchaser  and Parent, any of the persons listed  in Schedule I to this Offer to
Purchase, has any contract, arrangement, understanding or relationship 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 voting  of  such securities,  joint  ventures, loan  or option
arrangements, puts or calls, guaranties of loans, guaranties against loss or the
giving or withholding of proxies. Except as set forth in this Offer to Purchase,
since June 30, 1993, neither Purchaser nor Parent nor, to the best knowledge  of
Purchaser  and Parent, any of  the persons listed on  Schedule I hereto, has had
any business  relationship  or  transaction  with the  Company  or  any  of  its
executive  officers, directors  or affiliates  that is  required to  be reported
under the  rules and  regulations of  the Commission  applicable to  the  Offer.
Except  as set forth in this Offer to  Purchase, since June 30, 1993, there have
been no contacts, negotiations or transactions between any of Purchaser, Parent,
or any of their respective subsidiaries  or, to the best knowledge of  Purchaser
and  Parent, any of the persons listed in  Schedule I to this Offer to Purchase,
on the  one  hand,  and the  Company  or  its affiliates,  on  the  other  hand,
concerning  a  merger,  consolidation  or  acquisition,  tender  offer  or other
acquisition of securities, an election of directors or a sale or other  transfer
of a material amount of assets.
 
    9.   FINANCING  OF THE  OFFER AND  THE MERGER.   The  total amount  of funds
required by Purchaser to consummate the Offer and the Merger and to pay  related
fees  and expenses is estimated to be approximately $580,483,050. Purchaser will
obtain all of such funds from Parent or its affiliates. Parent will provide such
funds from cash on hand.
 
    10.   BACKGROUND  OF  THE  OFFER; CONTACTS  WITH  THE  COMPANY;  THE  MERGER
AGREEMENT.
 
    On  October 5, 1995, the Executive Committee of the Board determined that it
would be in  the best  interests of  the Company  and its  stockholders for  the
Company  to  take  an  active  approach  in  pursuing  opportunities  with other
companies.
 
    On November  21, 1995,  members of  management met  with representatives  of
Salomon  Brothers and analyzed  and discussed potential  strategic alliances. In
December, the Company communicated to representatives of several companies  that
the  Company  was  interested  in  exploring  opportunities  for  collaboration,
strategic alliance  or  some  form of  business  combination.  Discussions  with
certain of these companies followed.
 
    In late 1995, senior executives at the Company approached their counterparts
at Parent to suggest the possibility of a business combination involving the two
companies.  A confidentiality  agreement with  respect to  these discussions was
entered  into  in   December  1995,   and  shortly  thereafter   a  meeting   of
representatives  of the two companies was  held at the Company's headquarters in
Eagan, Minnesota.  At  that  meeting, the  parties  discussed  their  respective
product  and technology plans and financial  outlooks, and how the two companies
might consolidate their operations  in the event of  a business combination.  No
acquisition  proposal was made at or following this meeting, but representatives
of the two companies continued to be in communication, and a follow-up  meeting,
including  each  company's  financial  and legal  representatives,  was  held in
California on January 22, 1996.
 
                                       13
<PAGE>
    On February 3,  1996 representatives of  the Company had  a discussion  with
representatives of Parent in which Parent expressed the interest of its Board of
Directors  in a business combination with  the Company whereby the Company would
be maintained as a separate operating unit. Parent and the Company discussed the
timetable for a due diligence evaluation  of the Company in connection with  the
proposed business combination.
 
    On  February 5, 1996,  a regular meeting  of the Board  was held to discuss,
among other things, the  Company's strategic partnering efforts  as well as  the
recent communications between representatives of the Company and representatives
of  Parent. At  this meeting,  the Company's  management reviewed communications
with Parent, the respective technological abilities of Parent and the Company as
well as the potential synergies of a combination of the Company with Parent  and
other  matters  related thereto.  At the  conclusion of  the meeting,  the Board
determined that it would be consistent with the Company's objectives to continue
to investigate a  possible business  combination with  Parent as  well as  other
possible strategic alternatives for the Company.
 
    On February 13, 1996, at a special meeting of the Board, management reviewed
the  status of its  continuing discussions. Representatives  of Salomon Brothers
then reviewed  the environment  in  which the  Company operates,  the  pressures
facing   industry   participants,  strategies   undertaken  by   other  industry
participants, the reaction of the  stock market to major industry  transactions,
public  trading values of Parent and the  Company, valuations of the Company and
the methodology by which such valuations were derived.
 
    On  February  14,   1996  the   parties  and  their   financial  and   legal
representatives met to discuss whether a business combination could be agreed to
on  terms  acceptable  to both  sides.  The parties  discussed  several possible
transaction structures and values.  After further discussions and  negotiations,
which continued into the following day, the parties agreed to discuss with their
boards of directors a transaction valued at $30 per Share in cash for 75% of the
Shares and one share of Parent Common Stock for each remaining Share.
 
    On  February  18, 1996,  a special  meeting of  the Board  was held.  At the
meeting, the  executive officers  indicated that  the Parent  was interested  in
acquiring  the  Company,  subject to  further  due diligence,  negotiation  of a
satisfactory agreement, approval  by its  Board of Directors  and certain  other
conditions,  pursuant to a cash  tender offer to acquire  75% of the outstanding
shares of common stock of the Company's for $30 per share, net to the seller  in
cash,  and followed  by a  merger. At  the conclusion  of the  meeting the Board
determined that the Company should continue to negotiate the terms of a business
combination with  the  Parent,  including  but not  limited  to  the  terms  and
provisions  of a merger  agreement, which would  be subject to  final review and
approval by the Board.
 
    During the week of  February 19, 1996, the  parties conducted due  diligence
investigations  of each other's businesses, negotiated the terms of a definitive
merger agreement  and, beginning  in the  afternoon of  February 23,  1996,  had
meetings  and  telephone calls  with  certain key  customers  of the  Company to
discuss the potential transaction.
 
    On Tuesday,  February 20,  1996, the  Board of  Directors of  Parent met  by
telephone   conference  with   Parent's  management  and   financial  and  legal
representatives to review the results of  the negotiations held on February  14,
1996 and to discuss a preliminary draft of the Merger Agreement.
 
    On  Sunday,  February 25,  1996, the  Board  of Directors  of Parent  met by
telephone  conference  with   Parent's  management  and   financial  and   legal
representatives to review the results of Parent's due diligence investigation of
the  Company  and  the  terms  of  the  proposed  Merger  Agreement,  which  was
unanimously approved at this meeting.
 
    On February 25,  1996, a  special meeting  of the  Board was  held. At  such
meeting,  the  Board  reviewed with  certain  of its  executive  officers, legal
counsel and  financial  advisors the  discussion  and negotiations  between  the
Company and Parent. Following such discussions, the Board heard presentations by
its  legal counsel on the terms and  conditions contained in the proposed merger
agreement and by Salomon Brothers on  its analysis of the proposed  transaction.
Representatives of
 
                                       14
<PAGE>
Salomon Brothers then discussed matters related to the proposed transaction with
Parent.  At the conclusion of their presentation, Salomon Brothers delivered its
oral opinion to the Board (subsequently confirmed by a written opinion) that, as
of such date, the consideration to be  received by the holders of Shares in  the
Offer  and  the  Merger  is  fair,  from  a  financial  point  of  view,  to the
stockholders of the  Company. Thereafter,  the Board authorized  the Offer,  the
Merger  and the execution and delivery  of the Merger Agreement substantially in
the form presented to it; and  recommended that the stockholders of the  Company
accept  the Offer and  tender their shares  to Parent and  approve and adopt the
Merger Agreement.
 
    The Merger  Agreement was  executed that  evening and  announced before  the
opening of trading on the NYSE on the following morning.
 
    On February 29, 1996, Purchaser commenced the Offer.
 
THE MERGER AGREEMENT
 
    The following is a summary of the Merger Agreement, a copy of which is filed
as  an Exhibit to  the Tender Offer  Statement on Schedule  14D-1 (the "Schedule
14D-1") filed by 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 Merger Agreement provides for the commencement of the Offer
as promptly as reasonably practicable, but in no event later than five  business
days  after the initial public announcement of Purchaser's intention to commence
the Offer. The  obligation of Purchaser  to accept for  payment Shares  tendered
pursuant  to the Offer is  subject to the satisfaction  of the Minimum Condition
and certain other conditions that are described in Section 14 hereof.  Purchaser
and Parent have agreed that no change in the Offer may be made without the prior
written  consent of the Company  which decreases the price  per Share payable in
the Offer, changes the form  of consideration to be  paid in the Offer,  reduces
the maximum number of Shares to be purchased in the Offer, changes or waives the
Minimum  Condition or which imposes conditions to the Offer in addition to those
set forth in Section 14 hereof.
 
    Subject to  the  terms  and  conditions of  the  Offer  (including,  without
limitation,  the  Minimum Condition),  Purchaser shall,  and Parent  shall cause
Purchaser to, accept for payment and  pay for, as promptly as practicable  after
expiration  of  the  Offer,  all  Shares  validly  tendered  and  not withdrawn;
PROVIDED, HOWEVER, that notwithstanding  the foregoing Parent  may, in its  sole
discretion,  extend the expiration date of the Offer for up to 15 business days,
and agrees on a one-time basis, if  all other conditions to the Offer have  been
met,  to extend the expiration date for the Offer for 10 business days if on the
relevant date  of  expiration  at  least 45%  of  the  then  outstanding  Shares
(calculated  on a fully diluted basis) have been tendered and not withdrawn from
the Offer.
 
    THE MERGER.  The Merger Agreement provides that, upon the terms and  subject
to the conditions thereof, and in accordance with Delaware Law, at the Effective
Time,  Purchaser shall be merged  with and into the Company.  As a result of the
Merger, the separate corporate existence of Purchaser will cease and the Company
will continue  as the  Surviving  Corporation and  will  become a  wholly  owned
subsidiary  of Parent. Upon consummation  of the Merger, each  Share held in the
treasury of the Company and each Ineligible Share shall be cancelled and retired
without payment of any consideration thereof and cease to exist.
 
    Following completion of the Offer, the  remaining Shares are expected to  be
converted  at a one  to one ratio  into Parent Common  Stock. As more completely
described below, if  fewer than 19,218,735  of the Shares  are purchased in  the
Offer,  the remaining Company stockholders will receive a fraction of a share of
Parent Common Stock and cash for each Share so that the aggregate cash and stock
consideration paid in  the Merger is  the same as  if the Offer  had been  fully
subscribed.  Subject to adjustment  to remove fractional  shares, each remaining
outstanding Share (other than Shares held by stockholders who have demanded  and
perfected  appraisal rights, if any, under Delaware Law) shall be converted into
the right to receive  (i) 1.00 fully paid  and non-assessable share of  Parent's
Common
 
                                       15
<PAGE>
Stock  (the "Exchange Ratio"); PROVIDED, HOWEVER,  that if Purchaser accepts for
payment and pays for less than 19,218,735 Shares in the Offer, then the Exchange
Ratio shall be equal to a fraction, (A)  the numerator of which is equal to  (x)
the  Final Outstanding Number PLUS  (y) the Accepted Share  Number MINUS (z) the
Offered Number and (B) the denominator of which is the Final Outstanding  Number
and  (ii) if the  Exchange Ratio has  been adjusted pursuant  to the immediately
preceding PROVISO, an amount in cash equal  to a fraction, (A) the numerator  of
which is the product of the Per Share Amount and the amount by which the Offered
Number exceeds the Accepted Share Number and (B) the denominator of which is the
Final Outstanding Number.
 
    Pursuant  to the Merger Agreement, each share of common stock, no par value,
of Purchaser  issued and  outstanding immediately  prior to  the Effective  Time
shall  be converted into and exchanged for  one share of common stock, par value
$1.00 per share, of the Surviving Corporation.
 
    Under the Merger  Agreement, all  options to purchase  Company Common  Stock
granted   under  the  Cray  Research,  Inc.  1985  Incentive  Stock  Option  and
Nonstatutory Option Plan  (the "1985  Employee Plan"), the  Cray Research,  Inc.
1989  Employee  Benefit Stock  Plan  (the "Employee  Stock  Plan") and  the Cray
Research, Inc. 1989 Non-Employee Directors'  Stock Option Plan (the  "Directors'
Plan" and, together with the 1985 Employee Plan and the Employee Stock Plan, the
"Stock  Option Plans") or pursuant to any other arrangement adopted by the Board
to provide options to  directors, officers or employees  of the Company (in  any
such case, an "Option") then outstanding shall be assumed by Parent as set forth
below.  The above plans, along with all other employee related plans, are herein
collectively referred to as the "Employee Plans."
 
    At the  Effective  Time, the  Company's  obligations with  respect  to  each
outstanding  Option, whether vested or unvested,  shall, by virtue of the Merger
Agreement and without any further action of the Company, Parent or the holder of
any Option, be assumed  by Parent. Each  Option so assumed  by Parent under  the
Merger  Agreement shall continue to have, and  be subject to, the same terms and
conditions set forth  in the  applicable Stock  Option Plan  and the  applicable
stock  option agreement  as in effect  immediately prior to  the Effective Time,
except that (i) such  Option will be  exercisable for that  number of shares  of
Parent  Common Stock  equal to the  product of  the number of  shares of Company
Common Stock that were  purchasable under such Option  immediately prior to  the
Effective  Time multiplied by 1.0, subject to adjustment to eliminate fractional
shares, rounded up to the nearest whole number of shares of Parent Common Stock,
and (ii) the  per share exercise  price for  the shares of  Parent Common  Stock
issuable  upon exercise  of such  assumed Option will  be equal  to the quotient
determined by dividing the exercise price  per share of Company Common Stock  at
which  such Option  was exercisable immediately  prior to the  Effective Time by
1.0, subject  to adjustment  to eliminate  fractional shares,  and rounding  the
resulting exercise price up to the nearest whole cent.
 
    Under  the Merger Agreement,  the Convertible Debentures  shall, pursuant to
the terms of the Indenture,  dated as of February  1, 1986, between the  Company
and  Manufacturers Hanover Trust  Company, as Trustee  (the "Indenture"), become
thereafter convertible only into  that number of shares  of Parent Common  Stock
and  cash, if any, that the holder of any such Convertible Debentures would have
received if such  holder had converted  such Convertible Debentures  immediately
prior  to the  Effective Time  as provided  in Section  15.06 of  the Indenture.
Parent shall execute  and deliver  a supplemental  indenture (the  "Supplemental
Indenture"),  which  shall  evidence  Parent's  assumption  of  the  Convertible
Debentures and provide that the holder of each Convertible Debenture shall  have
the  right thereafter to convert such  Convertible Debenture as described above,
in each case in accordance with the terms of the Indenture.
 
    The Merger Agreement  provides that the  directors of 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. The
Merger  Agreement  provides  that,  at  the  Effective  Time,  unless  otherwise
determined   by  Parent  prior  to  the   Effective  Time,  the  Certificate  of
Incorporation of  Purchaser will  be  the Certificate  of Incorporation  of  the
Surviving Corporation; provided, however, that, at the Effective Time, Article I
 
                                       16
<PAGE>
of the Certificate of Incorporation of the Surviving Corporation will be amended
to  read as follows:  "The name of  the corporation is  Cray Research, Inc." The
Merger Agreement  also provides  that the  By-laws of  Purchaser, as  in  effect
immediately  prior to the Effective  Time, will be the  By-laws of the Surviving
Corporation.
 
    AGREEMENTS OF PARENT,  PURCHASER AND THE  COMPANY.  Pursuant  to the  Merger
Agreement,  the  Company  and Parent  shall  promptly as  practicable  after the
execution  of  the  Merger  Agreement  prepare  and  file  with  the  Commission
preliminary  proxy materials which shall constitute the proxy statement relating
to the  meeting  of  the  Company's  Stockholders  (the  "Company  Stockholders'
Meeting")  to  be  held  in  connection with  the  Merger  and  the Registration
Statement on Form S-4 to be filed with the Commission by Parent relating to  the
Parent   Common  Stock  to  be  issued   in  connection  with  the  Merger  (the
"Registration  Statement").  As  promptly  as  practicable  after  comments  are
received from the Commission thereon and after the furnishing by the Company and
Parent  of all  information required  to be  contained therein,  the Company and
Parent shall  file  with  the  Commission  a  combined  proxy  and  registration
statement  on Form S-4 (or on such  other form as shall be appropriate) relating
to the approval of the Merger by  the stockholders of the Company and shall  use
all  reasonable efforts to cause the  Registration Statement to become effective
as soon  thereafter as  practicable.  The Company  has  agreed, subject  to  its
fiduciary  duties  under applicable  law as  advised by  opinion of  counsel, to
include in the Proxy Statement the recommendation  of the Board in favor of  the
Merger.
 
    The  Company  shall  in  accordance  with  Delaware  Law  and  the Company's
Certificate of Incorporation and By-laws call and hold the Company Stockholders'
Meeting as promptly as practicable for  the purpose of voting upon the  approval
of the Merger, PROVIDED that the Company shall not be required to call or hold a
stockholders  meeting while the Offer remains outstanding. The Company shall use
its reasonable best efforts to hold the Company Stockholders' Meeting as soon as
practicable  after  the  date  on  which  the  Registration  Statement   becomes
effective.  Subject to its  fiduciary duties under applicable  law as advised by
opinion of counsel, the Company shall use its reasonable best efforts to solicit
from its stockholders proxies in favor of the approval of the Merger, and  shall
take  all other action necessary  or advisable to secure  the vote or consent of
stockholders required by Delaware Law to obtain such approvals.
 
    Pursuant to  the Merger  Agreement, the  Company has  covenanted and  agreed
that,  subject to certain  exceptions, between the date  of the Merger Agreement
and continuing until the earlier of  the termination of the Merger Agreement  or
the  Effective Time, unless Parent shall otherwise agree in writing, the Company
shall conduct its business and shall  cause the business of its subsidiaries  to
be  conducted only in, and  the Company and its  subsidiaries shall not take any
action except in the ordinary course of business and in a manner consistent with
past practice;  and  the Company  shall  use reasonable  commercial  efforts  to
preserve  substantially intact the business organization  of the Company and its
subsidiaries, to keep available the services of the present officers,  employees
and  consultants of  the Company  and its  subsidiaries, to  take all reasonable
action necessary to prevent the  loss, cancellation, abandonment, forfeiture  or
expiration   of  all  current  patents,  registered  and  material  unregistered
trademarks and  service marks,  registered  and unregistered  copyrights,  trade
names  and  any  applications  therefor  owned  by  the  Company  (the  "Company
Intellectual Property Rights"), all material third-party patents, trademarks  or
copyrights which are incorporated in, are, or form a part of any Company product
(the  "Third Party Intellectual Property Rights"), and material contracts of the
Company and  to  preserve the  present  relationships  of the  Company  and  its
subsidiaries  with customers, suppliers and other persons with which the Company
or any  of  its subsidiaries  has  significant business  relations.  The  Merger
Agreement provides that, except as contemplated therein, neither the Company nor
any  of its  Subsidiaries shall,  between the date  of the  Merger Agreement and
continuing until the earlier of the  termination of the Merger Agreement or  the
Effective  Time,  directly  or indirectly  do,  or  propose to  do,  any  of the
following, without the prior written consent  of Parent: (a) amend or  otherwise
change  its Certificate  of Incorporation or  By-laws; (b)  issue, sell, pledge,
dispose of, encumber, or authorize  the issuance, sale, pledge, disposition,  or
encumbrance of
 
                                       17
<PAGE>
any  shares of capital stock of any class, or any options, warrants, convertible
securities or other rights of any kind  to acquire any shares of capital  stock,
or  any  other ownership  interest (including,  without limitation,  any phantom
interest) of the Company, any of its subsidiaries or affiliates (except for  the
issuance of shares of the Company Common Stock issuable pursuant to the exercise
of  Options under the Stock Option Plans  or pursuant to rights to purchase such
shares under  the  Company's Employee  Stock  Purchase Plan,  which  Options  or
rights,  as the case may be, are outstanding on the date of the Merger Agreement
or with respect to the Convertible Debentures); (c) sell, pledge, dispose of  or
encumber  any assets of the  Company or any of  its subsidiaries (except for (i)
sales of assets in the  ordinary course of business  and in a manner  consistent
with  past  practice  which individually  and  in  the aggregate  do  not exceed
$1,000,000 and (ii) dispositions of obsolete or worthless assets); (d) amend  or
change  the  period  (or  permit  any  acceleration,  amendment  or  change)  of
exercisability of Options  or restricted  stock granted under  the Stock  Option
Plans  or authorize cash payments in exchange for any such Options or restricted
stock;  (e)  (i)  declare,  set  aside,  make  or  pay  any  dividend  or  other
distribution  (whether in cash, stock or property or any combination thereof) in
respect of any of its  capital stock, except that  a wholly owned subsidiary  of
the Company may declare and pay a dividend to its parent, (ii) split, combine or
reclassify  any  of its  capital  stock or  issue  or authorize  or  propose the
issuance of any other securities  in respect of, in  lieu of or in  substitution
for  shares of its capital stock or (iii) amend the terms of, repurchase, redeem
or otherwise  acquire,  or  permit  any  subsidiary  to  repurchase,  redeem  or
otherwise  acquire, any of its securities or any securities of its subsidiaries,
or propose to do any of  the foregoing; (f) sell, transfer, license,  sublicense
or  otherwise dispose  of any Company  Intellectual Property (other  than in the
ordinary course of business, consistent  with past practice, in connection  with
systems  sales and software developer programs), or amend or modify any existing
agreements with  respect to  any Company  Intellectual Property  or Third  Party
Intellectual  Property  Rights; (g)  (i) acquire  (by merger,  consolidation, or
acquisition of stock or assets)  any corporation, partnership or other  business
organization or division thereof; (ii) incur any indebtedness for borrowed money
or  issue any debt securities or assume, guarantee or endorse or otherwise as an
accommodation become responsible for, the obligations of any person, or make any
loans or advances, except  to employees in the  ordinary course consistent  with
past practice; (iii) enter into or amend any contract or agreement other than in
the  ordinary course  of business;  (iv) authorize  any capital  expenditures or
purchase of fixed assets which are, in the aggregate, in excess of the Company's
budgeted capital expenditures for 1996; PROVIDED, HOWEVER, that no more than one
half of such amount shall  be made or firmly committed  prior to June 30,  1996,
and,  PROVIDED, FURTHER that  the Company will  give Parent prior  notice of the
making or the firm commitment of more than $5 million of capital expenditure  in
any  calendar quarter; (v) terminate  any material contract or  amend any of its
material terms (other than amendments  to existing credit arrangements  designed
to  remedy  defaults thereunder);  or  (vi) enter  into  or amend  any contract,
agreement, commitment or arrangement to effect any of the matters prohibited  by
(i)  through (v); (h) increase the compensation  payable or to become payable to
its officers or  employees, or  grant any severance  or termination  pay to,  or
enter  into any employment or severance  agreement with any director, officer or
other employee of the  Company or any of  its subsidiaries except in  accordance
with  the Company's existing severance policy or establish, adopt, enter into or
amend any Employee Plan (other than  amendments required in order to effect  the
Merger  Agreement); (i)  take any  action, other  than as  required by  GAAP, to
change accounting  policies  or  procedures  or  cash  maintenance  policies  or
procedures  (including, without  limitation, procedures with  respect to revenue
recognition, capitalization of development  costs, payments of accounts  payable
and  collection  of accounts  receivable); (j)  make  any material  Tax election
inconsistent with past practices or  settle or compromise any material  federal,
state,  local or foreign tax liability or agree  to an extension of a statute of
limitations for any assessment of federal income tax or material state corporate
income or franchise tax, except to the extent the amount of any such  settlement
has  been  reserved for  on  the Company's  most  recent report  filed  with the
Commission; (k)  pay,  discharge,  settle,  or  satisfy  any  lawsuits,  claims,
liabilities   or  obligations   (absolute,  accrued,   asserted  or  unasserted,
contingent or otherwise), other than  the payment, discharge or satisfaction  in
the ordinary course of business and consistent with past practice of liabilities
reflected  or reserved  against in  the financial  statements of  the Company or
incurred in the ordinary course of business and
 
                                       18
<PAGE>
consistent with past practice; (l)  except as may be  required by law, take  any
action  to terminate or amend any  Employee Plan (other than amendments required
in order to effect the Merger Agreement); (m) permit any increase in the  number
of  employees of the Company  employed by the Company on  the date of the Merger
Agreement other than pursuant to an employee plan to be agreed to by the Company
and Parent as promptly  as practicable after the  date of the Merger  Agreement,
acting  reasonably  and in  good  faith; or  (n) take,  or  agree in  writing or
otherwise to take,  any of  the actions described  in sections  (a) through  (m)
above,  or any action which would make  any of the representations or warranties
of the Company contained in the Merger Agreement untrue or incorrect or  prevent
the  Company from performing or  cause the Company not  to perform its covenants
under the Merger Agreement or result in any of the conditions to the Merger  set
forth in the Merger Agreement not being satisfied.
 
    Pursuant  to the Merger Agreement, the Company has agreed that it shall not,
directly or indirectly, through any officer, director, employee,  representative
or  agent  of the  Company  or any  of  its subsidiaries,  solicit  or encourage
(including by way of furnishing information) the initiation of any inquiries  or
proposals  regarding any merger, take-over bid, sale of substantial assets, sale
of shares of capital stock (including without  limitation by way of a tender  or
exchange   offer)  or  similar   transactions  involving  the   Company  or  any
subsidiaries of the Company (any of  the foregoing inquiries or proposals  being
referred  to  herein  as  an "Acquisition  Proposal");  PROVIDED,  HOWEVER, that
nothing contained in the Merger Agreement shall prevent the Board from referring
any third party that contacts the Company on an unsolicited basis after the date
of the Merger Agreement concerning an Alternative Transaction (as defined below)
(provided that Parent is  concurrently notified of  such contact and  referral).
The  parties have  agreed that nothing  contained in the  Merger Agreement shall
prevent the Board, after receiving an  opinion of outside counsel to the  effect
that the Board is required to do so in order to discharge properly its fiduciary
duties,  from  considering,  negotiating,  approving  and  recommending  to  the
stockholders of  the  Company  an  unsolicited  bona  fide  written  Acquisition
Proposal  which the Board of  Directors of the Company  determines in good faith
(after  consultation  with  its  financial  advisors)  (i)  would  result  in  a
transaction  more favorable to  the Company's stockholders  than the transaction
contemplated by the Merger  Agreement and (ii) is  made by a person  financially
capable of consummating such Acquisition Proposal (any such Acquisition Proposal
being   referred  to  herein  as  a  "Superior  Proposal").  The  Company  shall
immediately notify  Parent after  receipt  of any  Acquisition Proposal  or  any
request  for  nonpublic  information  relating  to the  Company  or  any  of its
subsidiaries in connection  with an Acquisition  Proposal or for  access to  the
properties,  books or records of the Company  or any subsidiary by any person or
entity that informs the  Board that it  is considering making,  or has made,  an
Acquisition  Proposal. Such notice to Parent shall be made orally and in writing
and shall indicate  in reasonable  detail the identity  of the  offeror and  the
terms and conditions of such proposal, inquiry or contact. If the Board receives
a  request for material nonpublic  information by a party  who makes a bona fide
Acquisition Proposal and the Board determines that such proposal, if consummated
pursuant to its terms is a Superior  Proposal, then, and only in such case,  the
Company   may,  subject  to   the  execution  of   a  confidentiality  agreement
substantially similar to  that then in  effect between the  Company and  Parent,
provide  such party with access to information regarding the Company. The Merger
Agreement also provides that the Company shall immediately cease and cause to be
terminated any existing discussions or negotiations with any parties (other than
Parent and Purchaser) conducted heretofore with respect to any of the foregoing.
The Company agrees not  to release any third  party from any confidentiality  or
standstill  agreement to which the Company is  a party. The Company shall ensure
that the officers, directors and employees  of the Company and its  subsidiaries
and  any investment  banker or other  advisor or representative  retained by the
Company are aware of the restrictions described in this paragraph; and shall  be
responsible  for  any breach  of this  paragraph by  such bankers,  advisors and
representatives (PROVIDED, HOWEVER, that the Company shall not be liable for any
consequential damages with respect to such breaches).
 
    For purposes of the Merger Agreement, "Alternative Transaction" means (i)  a
transaction pursuant to which any person (or group of persons) other than Parent
or its affiliates (a "Third Party")
 
                                       19
<PAGE>
acquires  more than 20% of  the outstanding Shares, whether  from the Company or
pursuant to a  tender offer or  exchange offer  or otherwise, (ii)  a merger  or
other  business combination  involving the Company  pursuant to  which any Third
Party acquires more than 20% of the outstanding equity securities of the Company
or the entity surviving such merger  or business combination or (iii) any  other
transaction  pursuant  to  which  any Third  Party  acquires  control  of assets
(including for this purpose the outstanding equity securities of subsidiaries of
the Company,  and  the  entity  surviving any  merger  or  business  combination
including  any of them) of the Company and its subsidiaries having a fair market
value equal to more than 20% of the  fair market value of all the assets of  the
Company  and  its subsidiaries,  taken  as a  whole,  immediately prior  to such
transaction; PROVIDED, HOWEVER, that the term Alternative Transaction shall  not
include  any acquisition of securities  by a broker dealer  in connection with a
bona fide public offering of such securities.
 
    The Merger Agreement provides  that during the period  from the date of  the
Merger  Agreement and  continuing until  the earlier  of the  termination of the
Merger Agreement or the Effective Time,  Parent shall, unless the Company  shall
otherwise  agree in writing,  conduct its business, and  cause the businesses of
its subsidiaries  to  be conducted,  in  the  ordinary course  of  business  and
consistent  with  past  practice, other  than  actions  taken by  Parent  or its
subsidiaries  in  contemplation  of  the  Merger,  and  shall  not  directly  or
indirectly  do, or propose to do, any of the following without the prior written
consent of the Company:  (a) amend or otherwise  change Parent's Certificate  of
Incorporation  (other than with respect to immaterial changes thereto), or amend
the terms  of the  Parent Common  Stock; (b)  acquire or  agree to  acquire,  by
merging  or consolidating with, by purchasing an equity interest in or a portion
of the assets  of, or  by any  other manner,  any business  or any  corporation,
partnership,  association or other business organization or division thereof, or
otherwise acquire or agree to acquire any assets of any other person, which,  in
each   case,  would  materially  delay  or   prevent  the  consummation  of  the
transactions contemplated by the Merger Agreement; (c) sell, transfer,  license,
sublicense or otherwise dispose of any material assets; or (d) take, or agree in
writing  or otherwise to take, any of the actions described in this paragraph or
any action which would make any  of the representations or warranties of  Parent
contained  in the  Merger Agreement untrue  or incorrect or  prevent Parent from
performing or cause  Parent not  to perform  its covenants  thereunder or  would
result  in any  of the conditions  to the merger  to be satisfied  by Parent not
being satisfied.
 
    The Merger Agreement provides that  promptly upon the purchase by  Purchaser
of  a majority of the outstanding Shares pursuant to the Offer, and from time to
time thereafter  as  Shares  are  acquired  by  Purchaser,  Purchaser  shall  be
entitled,  subject  to compliance  with Section  14(f) of  the Exchange  Act, to
designate such  number of  directors,  rounded up  to  the next  greatest  whole
number, on the Board as will give Purchaser representation on the Board equal to
that  number  of directors  which  equals the  product  of the  total  number of
directors on the  Board (giving  effect to  the directors  appointed or  elected
pursuant to this sentence and including current directors serving as officers of
the  Company) multiplied by  the percentage that the  aggregate number of Shares
beneficially owned by Purchaser  or any affiliate  of Purchaser (including  such
Shares  as are accepted for payment pursuant  to the Offer, but excluding Shares
held by the  Company or any  of its affiliates)  bears to the  number of  Shares
outstanding. The Merger Agreement also provides that, at such times, the Company
will  also cause (i) each committee of the Board of Directors, (ii) if requested
by Purchaser, the board of directors  of each of the Company's subsidiaries  and
(iii) if requested by Purchaser, each committee of such board to include persons
designated  by Purchaser constituting the same percentage of each such committee
or board as  Purchaser's designees  are of the  Board. The  Company shall,  upon
request  by Purchaser, promptly increase  the size of the  Board or exercise its
best efforts  to secure  the resignations  of  such number  of directors  as  is
necessary  to enable Purchaser  designees to be  elected to the  Board and shall
cause Purchaser's designees to be so elected.
 
                                       20
<PAGE>
    The Merger Agreement provides  that subject to  applicable law, the  Company
shall  promptly take all  action necessary pursuant to  the Merger Agreement and
the Exchange Act and Rule 14f-1  promulgated thereunder in order to fulfill  its
obligations  under the Merger Agreement and  shall include in the Schedule 14D-9
mailed to  stockholders promptly  after the  commencement of  the Offer  (or  an
amendment  thereof  or  an  information  statement  pursuant  to  Rule  14f-1 if
Purchaser has  not  theretofore  designated  directors)  such  information  with
respect  to the  Company and  its officers  and directors  as is  required under
Section 14(f)  and Rule  14f-1 in  order to  fulfill its  obligations under  the
Merger  Agreement. Parent  and Purchaser will  supply the Company  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.
 
    Pursuant to the Merger Agreement, the Surviving Corporation and Parent shall
honor  the terms and provisions in the Employment Agreement, dated May 27, 1995,
between the  Company's  chief executive  officer,  J. Phillip  Samper,  and  the
Company.  The  Merger Agreement  also  provides that  the  Surviving Corporation
shall, subject to certain  exceptions set forth in  the Merger Agreement,  offer
severance  benefits to the  Company's employees generally  consistent with those
given in  the Company's  most recent  reduction  in force  and, in  general,  in
accordance  with  the 1995  Amended  and Restated  Severance  Pay Plan  for Cray
Research, Inc.
 
    The Merger Agreement further provides that the Certificate of  Incorporation
of  the  Surviving  Corporation shall  contain  the provisions  with  respect to
indemnification set forth in the Certificate of Incorporation and By-laws of the
Company, 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 at the Effective  Time
were  directors or officers of the Company, unless such modification is required
by law.
 
    The Merger Agreement also  provides that the Company  shall, to the  fullest
extent  permitted under  applicable law  or under  the Company's  Certificate of
Incorporation or By-Laws and regardless of whether the Merger becomes effective,
indemnify and  hold  harmless,  and  after the  Effective  Time,  the  Surviving
Corporation  and Parent shall, to the  fullest extent permitted under applicable
law or  under the  Surviving Corporation's  and Parent's,  as the  case may  be,
Certificate  of  Incorporation or  By-Laws,  indemnify and  hold  harmless, each
director and officer of  the Company or any  of its subsidiaries  (collectively,
the  "Indemnified Parties") against any  costs or expenses (including attorneys'
fees), judgments, fines, losses, claims,  damages, liabilities and amounts  paid
in  settlement  in  connection  with  any  claim,  action,  suit,  proceeding or
investigation, whether civil, criminal, administrative or investigative, arising
out of or pertaining to  any action or omission by  such director or officer  by
virtue  of their holding the office of director or officer occurring at or prior
to  the  Effective  Time   (including,  without  limitation,  the   transactions
contemplated  by  the Merger  Agreement) for  a  period of  six years  after the
Effective Time. In  the event  of any such  claim, action,  suit, proceeding  or
investigation  (whether arising  before or  after the  Effective Time),  (i) any
counsel retained by the Indemnified Parties  for any period after the  Effective
Time  shall be reasonably  satisfactory to the  Surviving Corporation and Parent
and (ii) neither the  Surviving Corporation nor Parent  shall be liable for  any
settlement  effected without  its written  consent (which  consent shall  not be
unreasonably withheld).
 
                                       21
<PAGE>
    Pursuant  to  the  Merger Agreement  Parent  shall use  its  reasonable best
efforts to cause the shares of Parent  Common Stock to be issued in the  Merger,
upon  exercise of the Options and upon conversion of the Convertible Debentures,
to be approved for listing on the NYSE.
 
    REPRESENTATIONS AND  WARRANTIES.    The Merger  Agreement  contains  various
customary  representations  and  warranties  of  the  parties  thereto including
representations by the Company  as to the absence  of certain changes or  events
concerning the Company's business, capitalization, compliance with law, material
contracts,   litigation,  employee  benefit  plans,  labor  matters,  Commission
filings,  real   property  and   leases,   taxes,  intellectual   property   and
environmental  matters. In addition to the  foregoing, the Merger Agreement also
contains the representations of the Company described below.
 
    The Company has represented that the Board has taken all necessary action to
amend the Rights Agreement, so that (A) none of the execution or delivery of the
Merger Agreement or the making of the Offer will cause (i) the Rights to  become
exercisable under the Rights Agreement, (ii) Parent or Purchaser or any of their
affiliates  to  be  deemed  an  "Acquiring Person"  (as  defined  in  the Rights
Agreement) or (iii)  the "Shares  Acquisition Date"  (as defined  in the  Rights
Agreement)  to occur upon any such event, (B) none of the acceptance for payment
or payment for Shares by Purchaser pursuant to the Offer or the consummation  of
the  Merger will  cause (i)  the Rights to  become exercisable  under the Rights
Agreement or (ii) Parent or Purchaser or any of their affiliates to be deemed an
Acquiring Person or  (iii) the Shares  Acquisition Date to  occur upon any  such
event,  and (C) the "Expiration Date" (as defined in the Rights Agreement) shall
occur no later than immediately prior to the purchase of shares pursuant to  the
Offer. The Company has also represented that the "Distribution Date" (as defined
in the Rights Agreement) has not occurred.
 
    The Company has represented that the Board has taken all necessary action to
amend  the Cray Research, Inc. Executives  Severance Compensation Plan, the Cray
Research, Inc. Key Management/ Professional Severance Compensation Plan and  the
Cray  Research, Inc. General Employee Severance Compensation Plan (collectively,
the "Parachute Plans") so that none of the execution, delivery or performance of
the Merger Agreement, including, without  limitation, consummation of the  Offer
and  the Merger shall constitute a "Change  of Control" for the purposes of such
Parachute Plans.
 
    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:  (a)  the
Registration  Statement  shall have  been declared  effective by  the Commission
under the Securities  Act. No  stop order  suspending the  effectiveness of  the
Registration  Statement  shall  have  been  issued  by  the  Commission  and  no
proceedings for that purpose and no  similar proceeding in respect of the  Proxy
Statement  shall have  been initiated or  threatened by the  Commission; (b) the
Merger Agreement and  the Merger  shall have been  approved and  adopted by  the
requisite  vote  of the  stockholders  of the  Company;  (c) the  waiting period
applicable to  the consummation  of the  Merger  under the  HSR Act  shall  have
expired  or been terminated; (d) no  temporary restraining order, preliminary or
permanent  injunction  or  other  order   issued  by  any  court  of   competent
jurisdiction  or  other  similar  binding  legal  restraint  or  prohibition (an
"Injunction") preventing the consummation of the Merger shall be in effect,  nor
shall any proceeding brought by any administrative agency or commission or other
governmental  authority or instrumentality, domestic  or foreign, seeking any of
the foregoing  be pending;  and there  shall not  be any  action taken,  or  any
statute,  rule,  regulation  or  order  enacted,  entered,  enforced  or  deemed
applicable to the Merger,  which makes the consummation  of the Merger  illegal;
(e)  the Parent Common Shares  to be issued in the  Merger, upon exercise of the
Options and  upon  conversion of  the  Convertible Debentures  shall  have  been
approved for listing, subject to notice of issuance, on the NYSE; and (f) Parent
shall  have made, or caused  to be made, the Offer  and shall have purchased, or
caused to be purchased, Shares pursuant to the Offer.
 
    In addition to  the foregoing, the  obligations of Parent  and Purchaser  to
effect  the  Merger  are  also  subject to  the  following  conditions:  (a) the
representations and warranties of the Company contained in the Merger  Agreement
shall  be true  and correct  in all respects  on and  as of  the Effective Time,
 
                                       22
<PAGE>
except for  (i)  changes  contemplated  by  the  Merger  Agreement,  (ii)  those
representations  and warranties  which address matters  only as  of a particular
date (which shall remain true and correct  as of such date) and (iii) where  the
failure  to be true and correct would not  have a material adverse effect on the
Company, with the same force  and effect as if made  on and as of the  Effective
Time;  (b) the Company shall have performed or complied in all material respects
with all  agreements  and covenants  required  by  the Merger  Agreement  to  be
performed  or complied  with by it  on or prior  to the Effective  Time; (c) all
material consents, waivers, approvals, authorizations  or orders required to  be
obtained,  and  all  filings  required  to  be  made,  by  the  Company  for the
authorization,  execution  and  delivery  of   the  Merger  Agreement  and   the
consummation  by it  of the  transactions contemplated  thereby shall  have been
obtained and made  by the  Company; (d) there  shall not  have been  instituted,
pending  or threatened any  action or proceeding (or  any investigation or other
inquiry that might result in such  an action or proceeding) by any  governmental
authority   or   administrative  agency   before  any   governmental  authority,
administrative agency or court of competent jurisdiction, nor shall there be  in
effect   any  judgment,   decree  or   order  of   any  governmental  authority,
administrative agency  or  court  of competent  jurisdiction,  in  either  case,
seeking  to prohibit  or limit  Parent from  exercising all  material rights and
privileges pertaining  to its  ownership  of the  Surviving Corporation  or  the
ownership or operation by Parent or any of its subsidiaries of all or a material
portion  of the  business or  assets of  Parent or  any of  its subsidiaries, or
seeking to  compel Parent  or any  of its  subsidiaries to  dispose of  or  hold
separate  all or any material portion of the business or assets of Parent or any
of its subsidiaries, as a result of the Merger or the transactions  contemplated
by the Merger Agreement; (e) since the date of the Merger Agreement, there shall
have  been no  change, occurrence  or circumstance  in the  business, results of
operations or  financial condition  of  the Company  or  any subsidiary  of  the
Company  having or reasonably likely to have  a material adverse effect; and (f)
Parent shall have received from each  officer and director who is identified  as
an  "affiliate" of the  Company an affiliate agreement,  and each such affiliate
agreement shall be in full force and effect.
 
    Finally the obligation of the Company  to effect the Merger is also  subject
to  the following conditions:  (a) the representations  and warranties of Parent
and Purchaser contained in the Merger Agreement shall be true and correct in all
respects on and as of the Effective Time, except for (i) changes contemplated by
the Merger Agreement,  (ii) those representations  and warranties which  address
matters  only as of a particular date (which shall remain true and correct as of
such date) and  (iii) failures  to be  true and correct  that would  not have  a
material  adverse effect on  the Company, with  the same force  and effect as if
made on  and as  of the  Effective Time;  (b) Parent  and Purchaser  shall  have
performed or complied in all material respects with all agreements and covenants
required  by the Merger Agreement to be performed or complied with by them on or
prior to  the Effective  Time; (c)  all material  consents, waivers,  approvals,
authorizations or orders required to be obtained, and all filings required to be
made,  by Parent and Purchaser for  the authorization, execution and delivery of
the  Merger  Agreement  and  the  consummation  by  them  of  the   transactions
contemplated  thereby shall have been obtained and made by Parent and Purchaser;
and (d) since the date of the Merger Agreement, there shall have been no change,
occurrence or circumstance in the  business, results of operations or  financial
condition  of Parent or any subsidiary of  Parent having or reasonably likely to
have a material adverse effect.
 
    TERMINATION; FEES AND EXPENSES.  The  Merger Agreement provides that it  may
be  terminated at any time prior to the Effective Time, notwithstanding approval
thereof by the stockholders of the  Company: (a) by mutual written consent  duly
authorized  by the  boards of  directors of  Parent and  the Company;  or (b) by
either Parent or the Company  if the Merger shall  not have been consummated  by
September  30, 1996 (PROVIDED  that the right to  terminate the Merger Agreement
shall not be  available to  any party whose  failure to  fulfill any  obligation
under  the Merger Agreement has been the cause  of or resulted in the failure of
the Merger to  occur on or  before such date);  or (c) by  either Parent or  the
Company  if a  court of  competent jurisdiction  or governmental,  regulatory or
administrative agency or  commission shall  have issued  a non-appealable  final
order,  decree or  ruling or  taken any  other action,  in each  case having the
effect of  permanently  restraining,  enjoining  or  otherwise  prohibiting  the
Merger;  or (d) by Parent, if the Offer shall not have been consummated prior to
June 30, 1996
 
                                       23
<PAGE>
(PROVIDED that Parent is not then  in material breach of the Merger  Agreement);
or  (e)  by  Parent, if  (i)  the Board  shall  withdraw, modify  or  change its
recommendation of the  Merger Agreement,  the Offer or  the Merger  in a  manner
adverse  to Parent or shall have resolved to do so; or (ii) the Board shall have
taken a "neutral" position with respect to an Alternative Transaction; or  (iii)
any  person or "group" (other than Parent or an affiliate of Parent) becomes the
owner of 20% or more of the  outstanding shares of Company Common Stock; or  (f)
by  Parent  or  the Company,  upon  a  breach of  any  representation, warranty,
covenant or  agreement on  the part  of  the Company  or Parent  and  Purchaser,
respectively,  set forth in the Merger Agreement  or in certain events where the
representations  or  warranties  of  the   Company  or  Parent  and   Purchaser,
respectively, shall have become untrue, (a "Terminating Breach"), PROVIDED that,
if  such Terminating Breach is  curable prior to the  expiration of 30 days from
its occurrence (but in no event later than September 30, 1996) by Parent or  the
Company, as the case may be, through the exercise of its reasonable best efforts
and  for so  long as Parent  or the  Company, as the  case may  be, continues to
exercise  such  reasonable  best  efforts,  neither  the  Company  nor   Parent,
respectively,  may terminate the Merger Agreement under this provision until the
expiration of such period without such Terminating Breach having been cured;  or
(g)  by the Company  or Parent, if the  Board shall have  resolved to accept, or
accepted, a Superior Proposal.
 
    In the  event  of  the  termination of  the  Merger  Agreement,  the  Merger
Agreement  provides that it  shall forthwith become  void and there  shall be no
liability thereunder on the part of any party thereto, or any of its affiliates,
directors, officers or stockholders  except under the  provisions of the  Merger
Agreement  related to fees and expenses  described below and under certain other
provisions of the Merger Agreement which survive termination.
 
    Except as described  herein, all  fees and expenses  incurred in  connection
with the Merger Agreement and the transactions contemplated thereby will be paid
by the party incurring such expenses, whether or not the Merger is consummated.
 
    The  Company has agreed to pay Parent a fee of $25,000,000 (the "Fee"), plus
actual, documented  and  reasonable out-of-pocket  expenses  of Parent,  not  in
excess  of $2,500,000, relating  to the transactions  contemplated by the Merger
Agreement (including,  but  not  limited  to,  fees  and  expenses  of  Parent's
counsel),  if  the Merger  Agreement  is terminated  because  (i) the  Board has
withdrawn or changed its recommendation of the Merger Agreement or the Merger in
a manner adverse  to Parent or  taken a  "neutral" position with  respect to  an
Alternative  Transaction  or  any  person  or group  (other  than  Parent  or an
affiliate of Parent) becomes the owner of 20% or more of the outstanding  shares
of  Company Common  Stock, or  if the  Board shall  have resolved  to accept, or
accepted, a  Superior Proposal,  (ii) the  Company has  committed a  Terminating
Breach  and has failed to cure such breach  in the manner set forth above, (iii)
the Offer  has  not  been  consummated  by June  30,  1996  and  an  Alternative
Transaction has been publicly announced and not withdrawn or (iv) an Alternative
Transaction  is consummated on or prior to December 31, 1996, provided Parent or
Purchaser in each case is not in intentional material breach of its  obligations
under the Merger Agreement.
 
    11.   PURPOSE OF  THE OFFER; PLANS FOR  THE COMPANY AFTER  THE OFFER AND THE
MERGER.
 
    PURPOSE OF THE OFFER.  The purpose of the Offer and the Merger is for Parent
to acquire  control of,  and the  entire equity  interest in,  the Company.  The
purpose of the Merger is for Parent to acquire all Shares not purchased pursuant
to  the Offer. Upon consummation of the Merger, the Company will become a wholly
owned subsidiary  of Parent.  The Offer  is being  made pursuant  to the  Merger
Agreement.
 
    Under  Delaware Law, the approval  of the Board and  the affirmative vote of
the holders of a majority of the  outstanding Shares is required to approve  and
adopt  the Merger Agreement and the transactions contemplated thereby, including
the Merger. A proxy statement (which  will also constitute a prospectus for  the
Parent  Common  Stock issuable  in the  Merger) containing  detailed information
concerning the  Merger will  be  furnished to  stockholders  of the  Company  in
connection  with a special  meeting to be called  by the Company  to vote on the
Merger. The Board of Directors of the
 
                                       24
<PAGE>
Company has  unanimously  approved and  adopted  the Merger  Agreement  and  the
transactions  contemplated thereby,  and the  only remaining  required corporate
action of the Company is the approval  and adoption of the Merger Agreement  and
the  transactions contemplated thereby by the affirmative vote of the holders of
a majority of the  Shares. Accordingly, if the  Minimum Condition is  satisfied,
Purchaser  will have sufficient voting power  to cause the approval and adoption
of the Merger Agreement  and the transactions  contemplated thereby without  the
affirmative vote of any other stockholder.
 
    In the Merger Agreement, the Company has agreed to take all action necessary
to  convene  a meeting  of its  stockholders  as soon  as practicable  after the
consummation of the Offer  for the purpose of  considering and taking action  on
the  Merger Agreement and the transactions  contemplated thereby, if such action
is required by Delaware  Law. Parent and Purchaser  have agreed that all  Shares
owned  by  them and  their subsidiaries  will be  voted in  favor of  the Merger
Agreement and the transactions contemplated thereby.
 
    If Purchaser purchases Shares  pursuant to the  Offer, the Merger  Agreement
provides  that Purchaser will be entitled  to designate representatives to serve
on the Board  in proportion to  Purchaser's ownership of  Shares following  such
purchase.  See  Section 10.  Purchaser  expects that  such  representation would
permit Purchaser to exert  substantial influence over  the Company's conduct  of
its business and operations.
 
    No  appraisal rights are available in connection with the Offer. However, if
the Merger is consummated, stockholders will have certain rights under  Delaware
Law  to dissent and demand  appraisal of, and to receive  payment in cash of the
fair value of, their Shares. Such rights to dissent, if the statutory procedures
are complied with, could lead to a  judicial determination of the fair value  of
the  Shares, as of the day prior to the date on which the stockholders' vote was
taken approving  the  Merger  or similar  business  combination  (excluding  any
element  of value arising from the accomplishment or expectation of the Merger),
required to be  paid in cash  to such  dissenting holders for  their Shares.  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, among other things,  that "proof of value by any
techniques or methods which are generally considered acceptable in the financial
community and  otherwise  admissible  in  court"  should  be  considered  in  an
appraisal  proceeding.  Therefore,  the  value so  determined  in  any appraisal
proceeding could be the same, more or less than the purchase price per Share  in
the Offer.
 
    In addition, several decisions by Delaware courts have held that, in certain
circumstances, a controlling stockholder of a company involved in a merger has a
fiduciary  duty to other stockholders which requires  that the merger be fair to
such other stockholders.  In determining whether  a merger is  fair to  minority
stockholders,  Delaware courts have considered, among other things, the type and
amount of consideration to be received by the stockholders and whether there was
fair dealing among the parties. The Delaware Supreme Court stated in  WEINBERGER
and RABKIN V. PHILIP A. HUNT CHEMICAL CORP. that the remedy ordinarily available
to  minority  stockholders  in  a  cash-out merger  is  the  right  to appraisal
described above. However, a damages remedy or injunctive relief may be available
if a  merger is  found to  be the  product of  procedural unfairness,  including
fraud, misrepresentation or other misconduct.
 
    The  Commission  has adopted  Rule  13e-3 under  the  Exchange Act  which is
applicable to certain "going private"  transactions and which may under  certain
circumstances  be  applicable  to  the Merger  or  another  business combination
following the purchase of Shares pursuant to the Offer in which Purchaser  seeks
to  acquire the remaining Shares not held by it. However, Rule 13e-3 will not be
applicable to  the Merger  or any  such other  business combination  if (i)  the
Shares are deregistered
 
                                       25
<PAGE>
under  the Exchange Act prior to the  Merger or other business combination, (ii)
the Merger or other  business combination is consummated  within one year  after
the  purchase  of  the  Shares  pursuant  to the  Offer  and  the  value  of the
consideration paid  per  Share  in  the Merger  or  other  business  combination
(measured  at the time of  consummation of the Merger) is  at least equal to the
amount paid per Share in the Offer  or (iii) 19,218,735 Shares are purchased  in
the  Offer. If applicable, Rule 13e-3 requires, among other things, that certain
financial information concerning the Company and certain information relating to
the fairness  of  the proposed  transaction  and the  consideration  offered  to
minority  stockholders  in such  transaction be  filed  with the  Commission and
disclosed to stockholders prior to consummation of the transaction.
 
    PLANS FOR THE COMPANY.  It is expected that, initially following the Merger,
the business and operations  of the Company  will, except as  set forth in  this
Offer  to  Purchase,  be continued  by  the  Company substantially  as  they are
currently being conducted.  Parent will  continue to evaluate  the business  and
operations  of  the Company  during  the pendency  of  the Offer  and  after the
consummation of the Offer and the Merger, and will take such actions as it deems
appropriate under  the  circumstances  then existing.  Parent  intends  to  seek
additional  information about the Company during this period. Thereafter, Parent
intends to review  such information  as part of  a comprehensive  review of  the
Company's  business, operations,  capitalization and  management with  a view to
optimizing exploitation of the Company's potential in conjunction with  Parent's
businesses.
 
    Except  as indicated  in this  Offer to Purchase,  Parent does  not have any
present plans or proposals which relate  to or would result in an  extraordinary
corporate   transaction,  such  as  a  merger,  reorganization  or  liquidation,
involving the  Company or  any of  its Subsidiaries,  a sale  or transfer  of  a
material  amount of  assets of  the Company  or any  of its  subsidiaries or any
material change in the Company's capitalization or dividend policy or any  other
material changes in the Company's corporate structure or business.
 
    12.   DIVIDENDS AND  DISTRIBUTIONS.  The Merger  Agreement provides that the
Company shall not, between the date of the Merger Agreement until the earlier of
the termination of the Merger Agreement or the Effective Time, without the prior
written consent of Parent, (a) issue,  sell, pledge, dispose of or encumber,  or
authorize  the issuance, sale, pledge, disposition or encumbrance of, any shares
of capital stock of any class, or any options, warrants, convertible  securities
or other rights of any kind to acquire any shares of capital stock, or any other
ownership  interest (including, without limitation, any phantom interest) of the
Company, any  of its  subsidiaries or  affiliates (except  for the  issuance  of
shares  of the Company Common Stock issuable pursuant to the exercise of Options
under the Stock Option Plans or pursuant to rights to purchase such shares under
the Company Stock Purchase Plan,  which Options or rights,  as the case may  be,
are  outstanding on  the date  of the  Merger Agreement  or with  respect to the
Convertible Debentures); or (b) (i) declare, set aside, make or pay any dividend
or other distribution  (whether in cash,  stock or property  or any  combination
thereof)  in respect  of any of  its capital  stock, except that  a wholly owned
subsidiary of the Company  may declare and  pay a dividend  to its parent,  (ii)
split,  combine or reclassify any of its  capital stock or issue or authorize or
propose the issuance of  any other securities  in respect of, in  lieu of or  in
substitution  for  shares of  its capital  stock  or (iii)  amend the  terms of,
repurchase, redeem or otherwise acquire, or permit any subsidiary to repurchase,
redeem or otherwise  acquire, any  of its securities  or any  securities of  its
subsidiaries,  or  propose to  do  any of  the  foregoing. See  Section  10. If,
however, the Company  should, during the  pendency of the  Offer, implement  any
stock   split,  reverse  split,  stock   dividend  (including  any  dividend  or
distribution   of   securities   convertible   into   Company   Common   Stock),
reorganization,  recapitalization or other  like change with  respect to Company
Common Stock then  the Exchange Ratio  shall be adjusted  to fully reflect  such
action.
 
    13.   EFFECT OF THE OFFER ON THE MARKET FOR THE SHARES, EXCHANGE LISTING AND
EXCHANGE ACT REGISTRATION.  The purchase of Shares by Purchaser pursuant to  the
Offer  will reduce the number of Shares  that might otherwise trade publicly and
will reduce the number  of holders of Shares,  which could adversely affect  the
liquidity and market value of the remaining Shares held by the public.
 
                                       26
<PAGE>
    Depending  upon the  number of Shares  purchased pursuant to  the Offer, the
Shares may no longer meet the requirements of the NYSE for continued listing and
may be delisted from the NYSE. According to the NYSE's published guidelines, the
NYSE would consider delisting the Shares  if, among other things, the number  of
record  holders of at  least 100 Shares  should fall below  1,200, the number of
publicly held Shares  (exclusive of  holdings of officers,  directors and  their
families  and  other  concentrated  holdings  of  10%  or  more  ("NYSE Excluded
Holdings")) should fall below 600,000 or the aggregate market value of  publicly
held  Shares (exclusive of NYSE Excluded Holdings) should fall below $5,000,000.
Since Parent is only offering  to purchase 19,218,735 Shares (approximately  75%
of  the currently outstanding Shares)  it is unlikely that  any of the foregoing
provisions would be triggered  by consummation of the  Offer. However, if, as  a
result  of the purchase of Shares pursuant to the Offer or otherwise, the Shares
no longer  meet the  requirements of  the  NYSE for  continued listing  and  the
listing  of  the Shares  is discontinued,  the  market for  the Shares  could be
adversely affected.
 
    If the NYSE were to delist the Shares, it is possible that the Shares  would
continue  to trade  on another  securities exchange  or in  the over-the-counter
market and that price or other quotations would be reported by such exchange  or
through  the  National  Association of  Securities  Dealers  Automated Quotation
System ("NASDAQ") or other sources. The extent of the public market therefor and
the availability of such quotations would depend, however, upon such factors  as
the  number of stockholders and/or the aggregate market value of such securities
remaining at such time, the  interest in maintaining a  market in the Shares  on
the part of securities firms, the possible termination of registration under the
Exchange  Act as  described below, and  other factors.  Purchaser cannot predict
whether the  reduction  in the  number  of  Shares that  might  otherwise  trade
publicly  would have an adverse or beneficial  effect on the market price for or
marketability of the Shares or whether it would cause future market prices to be
greater or less than $30.00 per share.
 
    The Shares are currently "margin securities", as such term is defined  under
the  rules 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  securities. Depending upon factors
similar to  those  described  above regarding  listing  and  market  quotations,
following  the Offer it is  possible that the Shares  might no longer constitute
"margin securities"  for  purposes of  the  margin regulations  of  the  Federal
Reserve  Board, in which event such Shares could no longer be used as collateral
for loans made by brokers.
 
    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 promulgated 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 NYSE or 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.
 
    14.  CERTAIN CONDITIONS OF THE  OFFER.  Notwithstanding any other  provision
of  the Offer, subject to the terms of the Merger Agreement, Purchaser shall not
be required to accept for payment or pay for any Shares tendered pursuant to the
Offer, and may terminate or amend the Offer and may postpone the acceptance  for
payment  of and payment for Shares tendered,  if (i) the Minimum Condition shall
 
                                       27
<PAGE>
not have been satisfied,  (ii) any applicable waiting  period under the HSR  Act
shall  not have expired or been terminated prior to the expiration of the Offer,
or (iii) at any time on or after February 25, 1996, and prior to the  acceptance
for payment of Shares, any of the following conditions shall exist:
 
       (a) there  shall have  been instituted  or be  pending or  threatened any
           action  or  proceeding  by  any  governmental  or  quasi-governmental
    authority  or agency, domestic or foreign, before any court or governmental,
    administrative or regulatory authority or agency of competent  jurisdiction,
    domestic  or foreign, (i) challenging or seeking to make illegal, materially
    delay or  otherwise directly  or  indirectly restrain  or prohibit  or  make
    materially  more costly the making of  the Offer, the acceptance for payment
    of, or payment for, any Shares  by Parent, Purchaser or any other  affiliate
    of  Parent, or the consummation of any other transaction contemplated by the
    Merger Agreement (the "Transactions"), or seeking to obtain material damages
    in connection  with  any Transaction;  (ii)  seeking to  prohibit  or  limit
    materially the ownership or operation by the Company, Parent or any of their
    subsidiaries of all or any material portion of the business or assets of the
    Company,  Parent or  any of  their subsidiaries,  or to  compel the Company,
    Parent or any of their  subsidiaries to dispose of  or hold separate all  or
    any material portion of the business or assets of the Company, Parent or any
    of  their subsidiaries,  as a result  of the Transactions;  (iii) seeking to
    impose or confirm material limitations  on the ability of Parent,  Purchaser
    or  any other  affiliate of  Parent to  exercise effectively  full rights of
    ownership of any Shares,  including, without limitation,  the right to  vote
    any  Shares acquired by Purchaser pursuant to  the Offer or otherwise on all
    matters properly presented to the Company's stockholders, including, without
    limitation, the  approval  and adoption  of  the Merger  Agreement  and  the
    transactions  contemplated thereby;  (iv) seeking to  require divestiture by
    Parent, Purchaser or  any other affiliate  of Parent of  any Shares; or  (v)
    which  otherwise has a material adverse effect or which is reasonably likely
    to  materially  adversely  affect  the  business,  operations,   properties,
    condition  (financial  or  otherwise),  assets  or  liabilities  (including,
    without limitation, contingent liabilities) or  prospects of the Company  or
    Parent;
 
       (b) there  shall  have  been  any action  taken,  or  any  statute, rule,
           regulation,   legislation,   interpretation,   judgment,   order   or
    injunction  enacted,  entered,  enforced,  promulgated,  amended,  issued or
    deemed applicable to (i) Parent, the Company or any subsidiary or  affiliate
    of  Parent or the Company or (ii)  any Transaction, by any legislative body,
    court, government or governmental, administrative or regulatory authority or
    agency, domestic  or foreign,  other  than the  routine application  of  the
    waiting  period provisions of the HSR Act  to the Offer or the Merger, which
    is reasonably likely  in the good  faith judgment of  the Parent to  result,
    directly  or indirectly, in  any of the consequences  referred to in clauses
    (i) through (v) of paragraph (a) above;
 
       (c) after February  25,  1996,  there shall  have  occurred  any  change,
           condition, event or development that has a material adverse effect on
    the Company;
 
       (d) there   shall  have  occurred  (i)  any  general  suspension  of,  or
           limitation on prices for, trading in  securities on the NYSE, (ii)  a
    declaration of a banking moratorium or any suspension of payments in respect
    of  banks  in the  United States,  (iii) a  commencement of  a war  or armed
    hostilities or other national or international crisis directly or indirectly
    involving the United  States or (iv)  in the  case of any  of the  foregoing
    existing  on the date of the Merger Agreement, in the good faith judgment of
    the Parent a material acceleration or worsening thereof;
 
       (e) (i) it shall  have been  publicly disclosed or  Purchaser shall  have
           otherwise  learned  that  beneficial  ownership  (determined  for the
    purposes of this paragraph as set forth in Rule 13d-3 promulgated under  the
    Exchange  Act)  of 20%  or  more of  the  then outstanding  Shares  has been
    acquired by any person, other than Parent  or any of its affiliates or  (ii)
    (A) the Board or any committee thereof shall have withdrawn or modified in a
    manner  adverse to Parent or Purchaser the approval or recommendation of the
    Offer,   the    Merger    or    the   Merger    Agreement,    or    approved
 
                                       28
<PAGE>
    or  recommended any  takeover proposal  or any  other acquisition  of Shares
    other than  the Offer  and the  Merger or  (B) the  Board or  any  committee
    thereof shall have resolved to do any of the foregoing;
 
       (f) any representation or warranty of the Company in the Merger Agreement
           which is qualified as to materiality shall not be true and correct or
    any  such representation or warranty  that is not so  qualified shall not be
    true and  correct  in  any  material  respect,  in  each  case  as  if  such
    representation  or warranty was made as of such time on or after the date of
    the Merger  Agreement, except  for (i)  changes contemplated  by the  Merger
    Agreement,  (ii) those representations and  warranties which address matters
    only as of a particular date (which shall remain true and correct as of such
    date) and (iii) where the  failure to be true and  correct would not have  a
    material adverse effect on the Company;
 
       (g) the  Company shall have failed to perform in any material respect any
           obligation or to comply in any material respect with any agreement or
    covenant of the Company  to be performed  or complied with  by it under  the
    Merger Agreement;
 
       (h) the Merger Agreement shall have been terminated; or
 
       (i) Purchaser  and  the Company  shall have  agreed that  Purchaser shall
           terminate the  Offer or  postpone the  acceptance for  payment of  or
    payment for Shares thereunder;
 
which,  in the reasonable good faith judgment of Purchaser in any such case, and
regardless of the circumstances (including any  action or inaction by Parent  or
any  of its affiliates) 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 Purchaser and  Parent
and  may  be asserted  by Purchaser  or Parent  regardless of  the circumstances
giving rise to any  such condition or  may be waived by  Purchaser or Parent  in
whole or in part at any time and from time to time in their sole discretion. The
failure  by Parent  or Purchaser at  any time  to exercise any  of the foregoing
rights shall not be deemed  a waiver of any such  right; the waiver of any  such
right  with respect  to particular  facts and  other circumstances  shall not be
deemed a waiver with respect to any other facts and circumstances; and each such
right shall be deemed an ongoing right that may be asserted at any time and from
time to time.
 
    15.  CERTAIN LEGAL MATTERS AND REGULATORY APPROVALS.
 
    GENERAL.  Based upon its examination of publicly available information  with
respect  to the Company and  the review of certain  information furnished by the
Company  to  Parent   and  discussions   of  representatives   of  Parent   with
representatives of the Company during Parent's investigation of the Company (see
Section  10), neither  Purchaser nor  Parent is  aware of  any license  or other
regulatory permit that appears to be material to the business of the Company and
the Subsidiaries, taken  as a whole,  which might be  adversely affected by  the
acquisition of Shares by Purchaser pursuant to the Offer or, except as set forth
below,  of any approval  or other action  by any domestic  (federal or state) or
foreign governmental,  administrative or  regulatory authority  or agency  which
would  be required prior to  the acquisition of Shares  by Purchaser pursuant to
the Offer.  Should  any  such  approval  or other  action  be  required,  it  is
Purchaser's  present intention to seek such approval  or action. There can be no
assurance that any such approval or  other action, if needed, would be  obtained
without  substantial conditions or that adverse consequences might not result to
the business of the Company,  Purchaser or Parent or  that certain parts of  the
businesses  of the Company, Purchaser or Parent might not have to be disposed of
or held  separate or  other substantial  conditions complied  with in  order  to
obtain  such approval or other action or in the event that such approval was not
obtained or such other  action was not taken.  Purchaser's obligation under  the
Offer to accept for payment and pay for Shares is subject to certain conditions,
including conditions relating to the legal matters discussed in this Section 15.
See Section 14.
 
                                       29
<PAGE>
    STATE  TAKEOVER LAWS.   The  Company is incorporated  under the  laws of the
State of  Delaware.  In  general,  Section  203  of  Delaware  Law  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. On  February  25,  1996,  prior to  the  execution  of  the  Merger
Agreement,  the Board  of Directors  of the  Company, by  unanimous vote  of all
directors present at a meeting held on such date, approved the Merger  Agreement
and determined that each of the Offer and the Merger is fair to, and in the best
interest  of,  the  stockholders of  the  Company. Accordingly,  Section  203 is
inapplicable to the Offer and the Merger.
 
    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. However,  in 1987 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 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 Company, directly or through subsidiaries, conducts business in a number
of states throughout  the United  States, some  of which  have enacted  takeover
laws.  Purchaser does not know  whether any of these  laws will, by their terms,
apply to the Offer or the Merger and has not complied with any such laws. Should
any person seek to apply any state takeover law, Purchaser will take such action
as then  appears  desirable,  which  may include  challenging  the  validity  or
applicability of any such statute in appropriate court proceedings. In the event
it  is asserted that one or more state  takeover laws 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, Purchaser might be required to
file certain information  with, or  receive approvals from,  the relevant  state
authorities.  In addition, if enjoined, Purchaser  might be unable to accept for
payment any Shares tendered pursuant to  the Offer, or be delayed in  continuing
or  consummating the Offer, and  the Merger. In such  case, Purchaser may not be
obligated to accept for payment any Shares tendered. See Section 14.
 
    ANTITRUST.   Under the  HSR Act  and the  rules that  have been  promulgated
thereunder  by the FTC, certain acquisition  transactions may not be consummated
unless certain information has been furnished to the Antitrust Division and  the
FTC and certain waiting period requirements have been satisfied. The acquisition
of  Shares by Purchaser pursuant  to the Offer is  subject to such requirements.
See Section 2.
 
    Pursuant to the HSR Act, Parent intends to file a Premerger Notification and
Report Form  (the  "HSR Report")  in  connection  with the  purchase  of  Shares
pursuant  to  the Offer  with  the Antitrust  Division  and the  FTC.  Under the
provisions of  the HSR  Act applicable  to  the Offer,  the purchase  of  Shares
pursuant  to  the  Offer  may  not be  consummated  until  the  expiration  of a
15-calendar day waiting period following the filing by Parent. Parent intends to
file the HSR Report  so as to  allow the applicable HSR  waiting period for  the
Offer  to expire on  or prior to  11:59 p.m., New  York City time,  on March 27,
1996. Pursuant to the  HSR Act, Parent intends  to request early termination  of
the  waiting period applicable to the Offer. There can be no assurance, however,
that the 15-day HSR Act waiting period  will be terminated early. If either  the
FTC  or  the  Antitrust  Division  were  to  request  additional  information or
documentary material from Parent with respect  to the Offer, the waiting  period
with
 
                                       30
<PAGE>
respect  to the  Offer would expire  at 11:59 p.m.,  New York City  time, on the
tenth calendar day after the date of substantial compliance by Parent with  such
request.  Thereafter, the waiting period could  be extended only by court order.
If the acquisition of Shares is delayed pursuant to a request by the FTC or  the
Antitrust  Division for additional information  or documentary material pursuant
to the HSR Act, the Offer may, but need not, be extended and, in any event,  the
purchase  of and  payment for Shares  will be  deferred until 10  days after the
request is substantially complied with, unless the extended period expires on or
before the date when the initial 15-day period would otherwise have expired,  or
unless  the waiting  period is  sooner terminated by  the FTC  and the Antitrust
Division. Only one extension  of such waiting period  pursuant to a request  for
additional  information is authorized  by the HSR Act  and the rules promulgated
thereunder, except by court order. Any such extension of the waiting period will
not give rise to any withdrawal rights not otherwise provided for by  applicable
law.  See Section  4. It  is a condition  to the  Offer that  the waiting period
applicable under the HSR Act to the Offer expire or be terminated. See Section 2
and Section 14.
 
    The FTC and the Antitrust Division frequently scrutinize the legality  under
the antitrust laws of transactions such as the proposed acquisition of Shares by
Purchaser  pursuant to the  Offer. At any  time before or  after the purchase of
Shares pursuant to  the Offer by  Purchaser, the FTC  or the Antitrust  Division
could  take  such action  under  the antitrust  laws  as it  deems  necessary or
desirable in the public  interest, including seeking to  enjoin the purchase  of
Shares  pursuant to the Offer or seeking  the divestiture of Shares purchased by
Purchaser or the  divestiture of substantial  assets of Parent,  the Company  or
their  respective subsidiaries. Private parties  and state attorneys general may
also bring legal  action under  federal or  state antitrust  laws under  certain
circumstances.  Based  upon an  examination of  information available  to Parent
relating to the  businesses in which  Parent, the Company  and their  respective
subsidiaries  are engaged, Parent and Purchaser  believe that the Offer will not
violate the  antitrust laws.  Nevertheless, there  can be  no assurance  that  a
challenge  to the  Offer on  antitrust grounds will  not be  made or,  if such a
challenge is  made,  what  the result  would  be.  See Section  14  for  certain
conditions to the Offer, including conditions with respect to litigation.
 
    16.   FEES AND EXPENSES.  Except as  set forth below, Purchaser will not pay
any fees or  commissions to any  broker, dealer or  other person for  soliciting
tenders of Shares pursuant to the Offer.
 
    Unterberg  Harris is acting  as Dealer Manager in  connection with the Offer
and has  provided certain  financial advisory  services in  connection with  the
acquisition  of the Company. Parent has agreed  to pay Unterberg Harris a fee of
$2,500,000  if  the  transactions  contemplated  in  the  Merger  Agreement  are
consummated  and $1,000,000 if these transactions are not consummated and Parent
receives the termination fee described in Section 10. Parent has also agreed  to
reimburse Unterberg Harris for all reasonable out-of-pocket expenses incurred by
Unterberg  Harris, including the reasonable fees  and expenses of legal counsel,
and to indemnify Unterberg  Harris against certain  liabilities and expenses  in
connection  with its engagement, including certain liabilities under the federal
securities laws.
 
    Purchaser and  Parent  have  retained  Georgeson  &  Company  Inc.,  as  the
Information Agent, and Citibank, N.A., as the Depositary, in connection with the
Offer.  The Information Agent may contact  holders of Shares by mail, telephone,
telex, 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 $15,000 and will also  be
reimbursed  for certain  out-of-pocket expenses  and may  be indemnified against
certain liabilities and expenses in connection with the Offer, including certain
liabilities under the federal securities laws. 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
 
                                       31
<PAGE>
expenses in  connection  therewith,  including under  federal  securities  laws.
Brokers,  dealers, commercial  banks and trust  companies will  be reimbursed by
Purchaser for  customary  handling and  mailing  expenses incurred  by  them  in
forwarding material to their customers.
 
    17.   MISCELLANEOUS.  Purchaser  is not aware of  any jurisdiction where the
making of  the Offer  is prohibited  by any  administrative or  judicial  action
pursuant  to any valid  state statute. If  Purchaser becomes aware  of any valid
state statute prohibiting the  making of the Offer  or the acceptance of  Shares
pursuant  thereto, Purchaser will  make a good  faith effort to  comply with any
such state statute. If,  after such good faith  effort, Purchaser cannot  comply
with  any such state statute, the Offer will not be made to (nor will tenders be
accepted from or  on behalf  of) the  holders of Shares  in such  state. 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 Purchaser by the Dealer Manager  or by one or more registered brokers
or dealers licensed under the laws of such jurisdiction.
 
    NO  PERSON  HAS  BEEN  AUTHORIZED  TO  GIVE  ANY  INFORMATION  OR  MAKE  ANY
REPRESENTATION ON BEHALF OF PURCHASER OR THE COMPANY NOT CONTAINED IN THIS OFFER
TO  PURCHASE  OR IN  THE  LETTER OF  TRANSMITTAL, AND,  IF  GIVEN OR  MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED.
 
    Pursuant to  Rule 14d-3  of  the General  Rules  and Regulations  under  the
Exchange  Act, Parent and Purchaser have  filed with the Commission the Schedule
14D-1, together with  exhibits, furnishing certain  additional information  with
respect  to the Offer. The Schedule  14D-1 and any amendments thereto, including
exhibits, may be inspected at, and copies may be obtained from, the same  places
and  in the same manner as set forth in  Section 7 (except that they will not be
available at the regional offices of the Commission).
 
                                          C Acquisition Corporation
February 29, 1996
 
                                       32
<PAGE>
                                                                      SCHEDULE I
 
                      DIRECTORS AND EXECUTIVE OFFICERS OF
                              PARENT AND PURCHASER
 
    1.   DIRECTORS AND EXECUTIVE  OFFICERS OF PARENT.   The following table sets
forth the  name, current  business address,  citizenship and  present  principal
occupation  or  employment,  and  material  occupations,  positions,  offices or
employments and  business addresses  thereof for  the past  five years  of  each
director  and  executive  officer  of Parent.  Unless  otherwise  indicated, the
current business  address of  each  person is  2011 North  Shoreline  Boulevard,
Mountain  View,  California 94043-1389.  Unless  otherwise indicated,  each such
person is a  citizen of the  United States of  America and has  held his or  her
present  position as set forth  below for the past  five years. Unless otherwise
indicated, each occupation  set forth  opposite an individual's  name refers  to
employment with Parent.
 
<TABLE>
<CAPTION>
                                                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
           NAME, CITIZENSHIP AND                        MATERIAL POSITIONS HELD DURING THE PAST FIVE
         CURRENT BUSINESS ADDRESS                           YEARS AND BUSINESS ADDRESSES THEREOF
- - - - -------------------------------------------  ------------------------------------------------------------------
<S>                                          <C>
Edward R. McCracken                          Director
                                             Chairman and Chief Executive Officer.
                                             Mr. McCracken became Chairman of Parent in 1994.
 
Thomas A. Jermoluk                           Director
                                             President and Chief Operating Officer.
                                             Mr. Jermoluk became an Executive Vice President of Parent in 1991
                                             and was named Chief Operating Officer in 1992, and President in
                                             1994.
 
Robert R. Bishop                             Director
AUSTRALIA                                    Chairman, Silicon Graphics World Trade Corporation.
                                             Mr. Bishop, who has been an officer of Parent since 1991 and
                                             President of Silicon Graphics World Trade Corporation since 1986,
                                             was named Chairman of the Board of Silicon Graphics World Trade
                                             Corporation in July of 1995.
 
Allen F. Jacobson                            Director
3050 Minnesota World Trade Center            Former Chairman of the Board and
30 Seventh Street                            Chief Executive Officer, 3M Company (3M Center, Saint Paul, MN
East St. Paul, MN 55101                      55144).
                                             Mr. Jacobson was the Chairman of the Board and Chief Executive
                                             Officer of 3M Company until he retired on October 31, 1991. Mr.
                                             Jacobson serves on the boards of numerous other public companies.
 
C. Richard Kramlich                          Director
2490 Sand Hill Road                          Managing General Partner
Menlo Park, CA 94025                         New Enterprise Associates
                                             Mr. Kramlich also serves on the boards of numerous other public
                                             companies.
</TABLE>
 
                                      I-1
<PAGE>
<TABLE>
<CAPTION>
                                                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
           NAME, CITIZENSHIP AND                        MATERIAL POSITIONS HELD DURING THE PAST FIVE
         CURRENT BUSINESS ADDRESS                           YEARS AND BUSINESS ADDRESSES THEREOF
- - - - -------------------------------------------  ------------------------------------------------------------------
Robert A. Lutz                               Director
UNITED STATES AND SWITZERLAND                President and Chief Operating Officer
12000 Chrysler Drive                         Chrysler Corporation
Highland Park, MI 48288-0001                 Mr. Lutz was elected President of Chrysler Corporation in February
                                             1991. He has also served as Chief Operating Officer and a member
                                             of the Office of the Chairman since January 1993. Mr. Lutz has
                                             been a member of Chrysler Corporation's Board of Directors since
                                             1986.
<S>                                          <C>
 
James A. McDivitt                            Director
                                             Former Senior Vice President, Government Operations and
                                             International, Rockwell International Corporation. (1745 Jefferson
                                             Davis Highway, Arlington, VA 22202)
                                             Mr. McDivitt was Senior Vice President, Government Operations and
                                             International, of Rockwell International Corporation until his
                                             retirement in April 1995.
 
Lucille Shapiro, Ph.D.                       Director
Stanford University                          Professor and Chairman of the Department of Developmental Biology,
School of Medicine                           Stanford University School of Medicine.
Stanford, CA 94305-5427                      Dr. Shapiro has been Professor and Chairman of the Department of
                                             Developmental Biology, Stanford University School of Medicine,
                                             since 1989 and Professor of Genetics, Stanford University School
                                             of Medicine since 1990.
 
Robert B. Shapiro                            Director
800 North Lindbergh Boulevard                Chairman, President and Chief Executive Officer
St. Louis, MO 63167                          Monsanto Company.
                                             Mr. Shapiro has been the Chairman, President and Chief Executive
                                             Officer of Monsanto Company since April 1995. Prior to that time,
                                             Mr. Shapiro served as the President and Advisory Director of the
                                             Monsanto Company from 1993 to 1995 and the President of The
                                             Agricultural Group of Monsanto from 1990 to 1993. Mr. Shapiro also
                                             serves on the boards of other public companies.
 
James G. Treybig                             Director
                                             Former Chairman of the Board and Chief Executive Officer, Tandem
                                             Computers Incorporated (10435 N. Tantau Avenue, Cupertino, CA
                                             95014).
                                             Mr. Treybig was the Chief Executive Officer of Tandem Computers
                                             Incorporated until he retired on January 8, 1996. Mr. Treybig
                                             remains a director of Tandem Computers Incorporated.
</TABLE>
 
                                      I-2
<PAGE>
<TABLE>
<CAPTION>
                                                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
           NAME, CITIZENSHIP AND                        MATERIAL POSITIONS HELD DURING THE PAST FIVE
         CURRENT BUSINESS ADDRESS                           YEARS AND BUSINESS ADDRESSES THEREOF
- - - - -------------------------------------------  ------------------------------------------------------------------
Gary L. Lauer                                Executive Vice President, Worldwide Field Operations. President,
                                             Silicon Graphics World Trade Corporation.
                                             Mr. Lauer joined Parent in 1988 as a Vice President, was named
                                             Senior Vice President, North American Field Operations in 1991 and
                                             became Executive Vice President of Parent and President of Silicon
                                             Graphics World Trade Corporation in 1995.
<S>                                          <C>
 
Javaid Aziz                                  Senior Vice President, Europe.
UNITED KINGDOM                               Mr. Aziz joined Parent in 1995 as Senior Vice President, Europe.
                                             Prior to joining Parent, Mr. Aziz spent 20 years at IBM
                                             Corporation in technical, marketing and management positions, most
                                             recently as chief executive officer of the United Kingdom
                                             operations. (IBM UK Limited, P.O. Box 41, North Hasboro,
                                             Portsmouth, Hampshire, U.K. PO6 3AU)
 
Forest Baskett                               Senior Vice President, Research and Development and Chief
                                             Technology Officer.
 
Robert K. Burgess                            Senior Vice President.
CANADA                                       Mr. Burgess joined Parent in 1995 as Senior Vice President and
                                             President of Parent's Alias--Wavefront subsidiary. Prior to
                                             joining Parent, Mr. Burgess served as Alias Research Inc.'s (110
                                             Richmond Street East, Toronto, Ontario M5C 1P1) President and
                                             Chief Operating Officer since 1991 and its Chief Executive Officer
                                             as well as a Director since February 1992.
 
Kenneth L. Coleman                           Senior Vice President, Administration.
 
Stephen Goggiano                             Senior Vice President, Manufacturing and Customer Service.
                                             Mr. Goggiano was named Vice President/General Manager, Operations
                                             of Parent in 1990 and, in 1993, was named Senior Vice President.
 
Stanley J. Meresman                          Senior Vice President, Finance and Chief Financial Officer.
 
Michael Ramsay                               Senior Vice President.
UNITED KINGDOM                               Mr. Ramsay became Senior Vice President/General Manager, Entry
                                             Systems Division of Parent in 1991. In 1992, Mr. Ramsay was named
                                             Senior Vice President, Visual Systems Group, and, in 1994, became
                                             President of Silicon Studio, Inc.
</TABLE>
 
                                      I-3
<PAGE>
<TABLE>
<CAPTION>
                                                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
           NAME, CITIZENSHIP AND                        MATERIAL POSITIONS HELD DURING THE PAST FIVE
         CURRENT BUSINESS ADDRESS                           YEARS AND BUSINESS ADDRESSES THEREOF
- - - - -------------------------------------------  ------------------------------------------------------------------
Teruyasu Sekimoto                            Senior Vice President, East Asia.
JAPAN                                        Mr. Sekimoto was named Vice President, North Pacific Area of
                                             Parent in 1989 and in 1995 he was named Senior Vice President,
                                             East Asia.
<S>                                          <C>
 
William M. Kelly                             Vice President, Business Development, General Counsel and
                                             Secretary.
                                             Mr. Kelly joined Parent in 1994 as Vice President, Business
                                             Development, General Counsel and Secretary. Prior to joining
                                             Parent, Mr. Kelly had practiced law since 1978 with the firm of
                                             Shearman & Sterling, most recently as co-managing partner of that
                                             firm's San Francisco office (555 California Street, Suite 2000,
                                             San Francisco, California 94104).
 
Dennis P. McBride                            Vice President, Controller.
 
Robert W. Saltmarsh                          Vice President, Treasurer.
                                             Mr.  Saltmarsh joined Parent  in February 1996  as Vice President,
                                             Treasurer. Between 1994  and 1995, Mr.  Saltmarsh served as  Chief
                                             Financial  Officer  of  Radius,  Inc.  (215  Moffett  Park  Drive,
                                             Sunnyvale, CA 94089) and prior to  that spent 12 years with  Apple
                                             Computer,  Inc.  (20525 Mariani  Avenue,  Cupertino, CA  95014) in
                                             several  executive  positions,  most  recently  serving  as   Vice
                                             President of Finance.
</TABLE>
 
                                      I-4
<PAGE>
    2.  DIRECTORS AND EXECUTIVE OFFICERS OF PURCHASER.  The following table sets
forth  the  name, current  business address,  citizenship and  present principal
occupation or  employment,  and  material  occupations,  positions,  offices  or
employments  and  business addresses  thereof for  the past  five years  of each
director and executive  officer of  Purchaser. The current  business address  of
each  person  is  2011  North  Shoreline  Boulevard,  Mountain  View, California
94043-1389. Unless otherwise  indicated, each such  person is a  citizen of  the
United States of America, and each occupation set forth opposite an individual's
name refers to employment with Purchaser.
 
<TABLE>
<CAPTION>
                                                        PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT;
           NAME, CITIZENSHIP AND                        MATERIAL POSITIONS HELD DURING THE PAST FIVE
         CURRENT BUSINESS ADDRESS                           YEARS AND BUSINESS ADDRESSES THEREOF
- - - - -------------------------------------------  ------------------------------------------------------------------
<S>                                          <C>
Thomas A. Jermoluk                           President.
                                             Mr. Jermoluk became an Executive Vice President of Parent in 1991
                                             and was named Chief Operating Officer in 1992, and President in
                                             1994.
 
William M. Kelly                             Director
                                             Vice President.
                                             Mr. Kelly joined Parent in 1994 as Vice President, Business
                                             Development, General Counsel and Secretary. Prior to joining
                                             Parent, Mr. Kelly had practiced law since 1978 with the firm of
                                             Shearman & Sterling, most recently as co-managing partner of that
                                             firm's San Francisco office (555 California Street, Suite 2000,
                                             San Francisco, California 94104).
 
Robert W. Saltmarsh                          Director
                                             Chief Financial Officer.
                                             Mr. Saltmarsh joined Parent in February 1996 as Vice President,
                                             Treasurer. Between 1994 and 1995, Mr. Saltmarsh served as Chief
                                             Financial Officer of Radius, Inc. (215 Moffett Park Drive,
                                             Sunnyvale, CA 94089) and prior to that spent 12 years with Apple
                                             Computer, Inc. (20525 Mariani Avenue, Cupertino, CA 95014) in
                                             several executive positions, most recently serving as Vice
                                             President of Finance.
</TABLE>
 
                                      I-5
<PAGE>
    Facsimiles  of the  Letter of  Transmittal will  be accepted.  The Letter of
Transmittal, certificates  evidencing Shares  and any  other required  documents
should  be  sent  or  delivered  by  each  stockholder  or  his  broker, dealer,
commercial bank, trust company or other nominee to the Depositary at one of  its
addresses set forth below.
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                                 CITIBANK, N.A.
 
<TABLE>
<S>                           <C>                           <C>
          BY MAIL:               BY OVERNIGHT COURIER:                BY HAND:
       Citibank, N.A.                Citibank, N.A.                Citibank, N.A.
     c/o Citicorp Data             c/o Citicorp Data           Corporate Trust Window
     Distribution, Inc.            Distribution, Inc.             111 Wall Street
       P.O. Box 1429                404 Sette Drive                  5th Floor
     Paramus, NJ 07653             Paramus, NJ 07652                New York, NY
 
                                     BY FACSIMILE:
                            (For Eligible Institutions Only)
                                     (201) 262-3240
 
                                 CONFIRM BY TELEPHONE:
                                     (800) 422-2077
</TABLE>
 
    Questions  or requests  for assistance  may be  directed to  the Information
Agent or the Dealer Manager at their respective addresses and telephone  numbers
listed  below.  Additional  copies of  this  Offer  to Purchase,  the  Letter of
Transmittal and  the Notice  of Guaranteed  Delivery may  be obtained  from  the
Dealer Manager or the Information Agent. A stockholder may also contact brokers,
dealers,  commercial  banks or  trust  companies for  assistance  concerning the
Offer.
 
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                            GEORGESON & COMPANY INC.
                               WALL STREET PLAZA
                            NEW YORK, NEW YORK 10005
                 BANKS AND BROKERS CALL COLLECT (212) 440-9800
                         CALL TOLL FREE: 1-800-223-2064
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                UNTERBERG HARRIS
 
                         275 Battery Street, 29th Floor
                        San Francisco, California 94111
                         CALL TOLL FREE: 1-800-622-8448

<PAGE>
                             LETTER OF TRANSMITTAL
                        TO TENDER SHARES OF COMMON STOCK
                  (INCLUDING THE COMMON SHARE PURCHASE RIGHTS)
                                       OF
                              CRAY RESEARCH, INC.
           PURSUANT TO THE OFFER TO PURCHASE DATED FEBRUARY 29, 1996
                                       OF
                           C ACQUISITION CORPORATION
                          A WHOLLY OWNED SUBSIDIARY OF
                             SILICON GRAPHICS, INC.
 
    THE OFFER, PRORATION PERIOD, AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00
 MIDNIGHT, NEW YORK CITY TIME, ON MARCH 27, 1996, UNLESS THE OFFER IS EXTENDED.
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                                 CITIBANK, N.A.
 
<TABLE>
<S>                            <C>                            <C>
          BY MAIL:                 BY OVERNIGHT COURIER:                BY HAND:
       Citibank, N.A.                 Citibank, N.A.                 Citibank, N.A.
      c/o Citicorp Data              c/o Citicorp Data           Corporate Trust Window
     Distribution, Inc.             Distribution, Inc.               111 Wall Street
        P.O. Box 1429                 404 Sette Drive                   5th Floor
      Paramus, NJ 07653              Paramus, NJ 07652                New York, NY
 
                                       BY FACSIMILE:
                                (For Eligible Institutions
                                           Only)
                                      (201) 262-3240
 
                                   CONFIRM BY TELEPHONE:
                                      (800) 422-2077
</TABLE>
 
DELIVERY  OF THIS LETTER OF  TRANSMITTAL TO AN ADDRESS  OTHER THAN AS SET FORTH
 ABOVE OR  TRANSMISSION  OF  INSTRUCTIONS VIA  FACSIMILE  TRANSMISSION  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.
 
    This Letter of  Transmittal is  to be  completed by  stockholders either  if
certificates  evidencing Shares (as defined below)  are to be forwarded herewith
or, unless an Agents Message (as defined in the Offer to Purchase) is  utilized,
if  delivery of Shares is to be  made by book-entry transfer to the Depositary's
account at The Depository Trust  Company ("DTC") or the Philadelphia  Depository
Trust Company ("PDTC") (each a "Book-Entry Transfer Facility" and, collectively,
the  "Book-Entry  Transfer  Facilities")  pursuant  to  the  book-entry transfer
procedure described in Section  3 of the Offer  to Purchase (as defined  below).
DELIVERY  OF DOCUMENTS  TO A  BOOK-ENTRY TRANSFER  FACILITY DOES  NOT CONSTITUTE
DELIVERY TO THE DEPOSITARY.
 
    Stockholders whose certificates evidencing Shares ("Share Certificates") are
not immediately available or who cannot deliver their Share Certificates and all
other documents required hereby to the  Depositary prior to the Expiration  Date
(as  defined in Section 1  of the Offer to Purchase)  or who cannot complete the
procedure for delivery by book-entry transfer on a timely basis and who wish  to
tender  their Shares  must do so  pursuant to the  guaranteed delivery procedure
described in Section 3 of the Offer to Purchase. See Instruction 2.
<PAGE>
 
<TABLE>
<S>        <C>
/ /        CHECK HERE IF SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER TO THE DEPOSITARYS
           ACCOUNT AT ONE OF THE BOOK-ENTRY TRANSFER FACILITIES AND COMPLETE THE FOLLOWING:
           Name of Tendering Institution:
           Check Box of Applicable Book-Entry Transfer Facility:
           (check one)                   / / DTC                   / / PDTC
           Account Number:
           Transaction Code Number:
 
/ /        CHECK HERE IF SHARES ARE BEING TENDERED PURSUANT TO A NOTICE OF GUARANTEED DELIVERY
           PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE FOLLOWING:
           Name(s) of Registered Holder(s):
           Window Ticket No. (if any):
           Date of Execution of Notice of Guaranteed Delivery:
           Name of Institution which Guaranteed Delivery:
</TABLE>
 
                          SPECIAL TENDER INSTRUCTIONS
 
    Shareholders may wish, for tax planning purposes, to designate the  specific
order  in which they desire their Shares to be accepted for payment in the event
of proration. Each  shareholder is  urged to consult  his own  tax advisor  with
respect to such considerations.
<TABLE>
<S>                                 <C>                   <C>                   <C>
                                   DESCRIPTION OF SHARES TENDERED
 
<CAPTION>
    Name(s) and Address(es) of
       Registered Holder(s)
(Please fill in, if blank, exactly
            as name(s)                          Share Certificate(s) and Shares Tendered
appear(s) on Share Certificate(s))               (Attach additional list, if necessary)
<S>                                 <C>                   <C>                   <C>
                                                            Total Number of
                                           Share          Shares Evidenced by
                                        Certificate              Share            Number of Shares
                                         Number(s)*         Certificate(s)*          Tendered**
                                       Total Shares:
  *Need not be completed by stockholders delivering Shares by book-entry transfer.
 **Unless otherwise indicated, it will be assumed that all Shares evidenced by each Share
   Certificate delivered to the Depositary are being tendered hereby. See Instruction 4.
</TABLE>
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.
 
Ladies and Gentlemen:
 
    The  undersigned hereby tenders to  C Acquisition Corporation, a corporation
organized and existing under the laws of the State of Delaware ("Purchaser") and
wholly owned subsidiary of Silicon  Graphics, Inc., a Delaware corporation,  the
above-described  shares  of  common  stock,  par  value  $1.00  per  share  (the
"Shares"), of Cray Research,  Inc., a corporation  organized and existing  under
the laws of the State of Delaware (the "Company"), pursuant to Purchaser's offer
to  purchase 19,218,735 Shares, including the  Common Share Purchase Rights (the
"Rights") issued pursuant to the Rights  Agreement, dated May 15, 1989,  between
the  Company and  Norwest Bank  Minnesota, N.A.  (the "Rights  Agreement"), at a
price of $30.00 per Share, net to the seller in cash, upon the terms and subject
to the conditions set forth  in the Offer to  Purchase, dated February 29,  1996
(the  "Offer to Purchase"), receipt of which is hereby acknowledged, and in this
Letter of Transmittal  (which together constitute  the "Offer"). All  references
herein to the Rights include all benefits which may inure to stockholders of the
Company  pursuant  to  the Rights  Agreement,  and unless  the  context requires
otherwise, all references herein to  Shares include the Rights. The  undersigned
understands
<PAGE>
that  Purchaser reserves the right to transfer  or assign, in whole or from time
to time in part, to one or more of its 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  the Shares
tendered herewith in  accordance with the  terms of the  Offer, the  undersigned
hereby  sells, assigns  and transfers  to, or upon  the order  of, Purchaser all
right, title and  interest in  and to  all the  Shares that  are being  tendered
hereby   and  all  dividends,   distributions  (including,  without  limitation,
distributions of additional Shares) and rights declared, paid or distributed  in
respect   of  such  Shares   on  or  after   February  25,  1996  (collectively,
"Distributions") and irrevocably  appoints the  Depositary the  true and  lawful
agent  and attorney-in-fact of  the undersigned with respect  to such Shares and
all Distributions, with full power of substitution (such power of attorney being
deemed to be  an irrevocable  power coupled with  an interest),  to (i)  deliver
Share  Certificates evidencing  such Shares  and all  Distributions, or transfer
ownership of such Shares and all  Distributions on the account books  maintained
by   a  Book-Entry  Transfer  Facility,  together,  in  either  case,  with  all
accompanying evidences of  transfer and authenticity,  to or upon  the order  of
Purchaser,  (ii) present such  Shares and all Distributions  for transfer on the
books of the Company and (iii)  receive all benefits and otherwise exercise  all
rights  of beneficial  ownership of  such Shares  and all  Distributions, all in
accordance with the terms of the Offer.
 
    The undersigned hereby irrevocably appoints  William M. Kelly and Robert  W.
Saltmarsh  and each of  them, as the  attorneys 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  (by written  consent or otherwise)  with respect  to all  the
Shares  tendered hereby which have been  accepted for payment by Purchaser prior
to the time of  such vote or  other action and all  Shares and other  securities
issued  in Distributions  in respect  of such  Shares, which  the undersigned is
entitled to vote at any meeting  of stockholders of the Company (whether  annual
or  special and whether or not an  adjourned or postponed meeting) or consent in
lieu of any  such meeting  or otherwise.  This proxy  and power  of attorney  is
coupled  with an interest in  the Shares tendered hereby,  is irrevocable and is
granted in consideration of, and is  effective upon, the acceptance for  payment
of  such Shares by Purchaser  in accordance with other  terms of the Offer. Such
acceptance for payment  shall revoke all  other proxies and  powers of  attorney
granted  by the  undersigned at any  time with  respect to such  Shares (and all
Shares and other securities issued in Distributions in respect of such  Shares),
and  no subsequent proxy or power of  attorney shall be given or written consent
executed (and if given or executed,  shall not be effective) by the  undersigned
with  respect thereto. The undersigned understands  that, in order for Shares to
be deemed  validly tendered,  immediately upon  Purchaser's acceptance  of  such
Shares  for payment, Purchaser  must be able  to exercise full  voting and other
rights with respect  to such  Shares and all  Distributions, including,  without
limitation, voting at any meeting of the Companys stockholders then scheduled.
 
    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 all Distributions, and that when such Shares are accepted for payment
by Purchaser, Purchaser  will acquire  good, marketable  and unencumbered  title
thereto  and to  all Distributions, free  and clear of  all liens, restrictions,
charges and encumbrances, and that none of such Shares and Distributions will be
subject to any adverse claim. The  undersigned, upon request, shall execute  and
deliver  all additional  documents deemed by  the Depositary or  Purchaser to be
necessary or desirable  to complete  the sale,  assignment and  transfer of  the
Shares tendered hereby and all Distributions. In addition, the undersigned shall
remit  and transfer promptly to the Depositary  for the account of Purchaser all
Distributions  in  respect  of  the  Shares  tendered  hereby,  accompanied   by
appropriate documentation of transfer, and, pending such remittance and transfer
or  appropriate assurance thereof, Purchaser shall be entitled to all rights and
privileges as  owner of  each  such Distribution  and  may withhold  the  entire
purchase  price of  the Shares  tendered hereby,  or deduct  from such purchaser
price, the amount or  value of such Distribution  as determined by Purchaser  in
its sole discretion.
 
    No  authority herein conferred  or agreed to be  conferred shall be affected
by, and  all  such authority  shall  survive, the  death  or incapacity  of  the
undersigned.  All obligations of the undersigned hereunder shall be binding upon
the heirs, personal 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  the undersigned's acceptance  of the terms
and conditions  of the  Offer, including  the undersigned's  representation  and
warranty  that  (i)  the  undersigned  has a  net  long  position  in  Shares or
equivalent securities at least equal to  the Shares tendered within the  meaning
of  Rule 14e-4 under the  Securities Exchange Act of  1934, as amended, and (ii)
such tender of Shares complies with  Rule 14e-4. Purchaser's acceptance of  such
Shares  for payment will constitute a  binding agreement between the undersigned
and Purchaser upon the terms and subject to the conditions of the Offer.
<PAGE>
    The undersigned understands that if more than 19,218,735 Shares are  validly
tendered  and  not  withdrawn in  accordance  with  Section 4  of  the  Offer to
Purchase, Shares so tendered and  not withdrawn will be  accepted on a PRO  RATA
basis as described in the Offer to Purchase.
 
    Unless  otherwise  indicated herein  in  the box  entitled  "Special Payment
Instructions"', please issue  the check  for the  purchase price  of all  Shares
purchased,  and return all Share Certificates evidencing Shares not purchased or
not tendered in the  name(s) of the registered  holder(s) appearing above  under
"Description  of Shares Tendered". Similarly,  unless otherwise indicated in the
box entitled  "Special Delivery  Instructions", please  mail the  check for  the
purchase  price of  all Shares purchased  and all  Share Certificates evidencing
Shares  not  tendered   or  not  purchased   (and  accompanying  documents,   as
appropriate)  to  the address(es)  of the  registered holder(s)  appearing above
under "Description of  Shares Tendered". In  the event that  the boxes  entitled
"Special  Payment  Instructions" and  "Special  Delivery Instructions"  are both
completed, please issue the check for the purchase price of all Shares purchased
and return  all  Share  Certificates  evidencing Shares  not  purchased  or  not
tendered  in the name(s) of, and mail  such check and Share Certificates to, the
person(s) so indicated. Unless  otherwise indicated herein  in the box  entitled
"Special  Payment Instructions",  please credit  any Shares  tendered hereby and
delivered by book-entry transfer, but which  are not purchased by crediting  the
account  at the Book-Entry  Transfer Facility designated  above. The undersigned
recognizes that Purchaser  has no  obligation, pursuant to  the Special  Payment
Instructions,  to transfer any Shares from  the name of the registered holder(s)
thereof if Purchaser does not purchase any of the Shares tendered hereby.
 
<TABLE>
<S>                                  <C>
          SPECIAL PAYMENT                     SPECIAL DELIVERY
           INSTRUCTIONS                         INSTRUCTIONS
 (SEE INSTRUCTIONS 1, 5, 6 AND 7)     (SEE INSTRUCTIONS 1, 5, 6 AND 7)
To be completed  ONLY if the  check  To  be completed ONLY  if the check
for the purchase price of Shares or  for the  purchase price  of  Shares
Share Certificates evidencing        purchased   or  Share  Certificates
Shares   not   tendered   or    not  evidencing  Shares not  tendered or
purchased is  to be  issued in  the  not  purchased are to  be mailed to
name  of  someone  other  than  the  someone other than the undersigned,
undersigned,  or if Shares tendered  or the  undersigned at  an  address
hereby  and delivered by book-entry  other   than   that   shown   under
transfer  which  are  not purchased  "Description of Shares Tendered."
are to be returned by credit to  an
account  at  one of  the Book-Entry
Transfer Facilities other than that
designated above.
Issue check  and/or  certificate(s)  Mail  check  and/or  certificate(s)
to:                                  to:
 
               Name:                                Name:
           PLEASE PRINT                         PLEASE PRINT
             Address:                             Address:
                        INCLUDE ZIP           INCLUDE ZIP CODE
               CODE
       TAXPAYER IDENTIFICATION OR
      SOCIAL SECURITY NUMBER
     (SEE SUBSTITUTE FORM W-9 ON
           REVERSE SIDE)
/  /  Credit  Shares  delivered  by
    book-entry   transfer  and  not
    purchased to  the  account  set
    forth below:
/ / The Depository Trust Company
/ / Philadelphia Depository Trust
  Company
 
          ACCOUNT NUMBER
</TABLE>
 
<PAGE>
 
                                   IMPORTANT
                           STOCKHOLDER(S): SIGN HERE
                (PLEASE COMPLETE SUBSTITUTE FROM W-9 ON REVERSE)
 
       .........................................................................
 
       .........................................................................
                           SIGNATURE(S) OF HOLDER(S)
            Dated:........................................................., 199
 
  (Must  be signed by registered holder(s) exactly as name(s) appear(s) on Share
Certificates or on  a security  position listing  by a  person(s) authorized  to
become  registered holder(s) by certificates and documents transmitted herewith.
If   signature   is   by   a   trustee,   executor,   administrator,   guardian,
attorney-in-fact, officer of a corporation or other person acting in a fiduciary
or  representative capacity,  please provide  the following  information and see
Instruction 5).
 
Name(s): .......................................................................
 
.................................................................................
                                  PLEASE PRINT
 
Capacity: ......................................................................
                        PLEASE PROVIDE FULL TITLE
 
Address: .......................................................................
 
.................................................................................
                                                                INCLUDE ZIP CODE
 
Telephone No.: .................................................................
                               INCLUDE AREA CODE
 
Taxpayer Identification or
Social Security Number: ........................................................
SEE SUBSTITUTE FORM W-9 ON REVERSE SIDE
 
                            GUARANTEE OF SIGNATURES
                   (IF REQUIRED -- SEE INSTRUCTIONS 1 AND 5)
SPACE BELOW IS FOR USE  BY FINANCIAL INSTITUTIONS ONLY. FINANCIAL  INSTITUTIONS:
PLACE MEDALLION GUARANTEE IN SPACE PROVIDED BELOW.
<PAGE>
                                  INSTRUCTIONS
             Forming Part of the Terms and Conditions of the Offer
 
    1.   GUARANTEE OF SIGNATURES.  All  signatures on this Letter of Transmittal
must be  medallion guaranteed  by a  firm which  is a  member of  the  Medallion
Signature  Guarantee Program, or by  any other "eligible guarantor institution",
as such term is  defined in Rule  17Ad-15 under the  Securities Exchange Act  of
1934,  as  amended (each  of the  foregoing  being referred  to as  an "Eligible
Institution") unless (i) this Letter of Transmittal is signed by the  registered
holder(s)  of  the Shares  (which  term, for  purposes  of this  document, shall
include any participant in a Book-Entry Transfer Facility whose name appears  on
a  security position listing  as the owner  of Shares) tendered  hereby and such
holder(s) has  (have)  completed  neither  the  box  entitled  "Special  Payment
Instructions"  nor  the  box  entitled "Special  Delivery  Instructions"  on the
reverse hereof or (ii) such Shares are  tendered for the account of an  Eligible
Institution. See Instruction 5.
 
    2.   DELIVERY OF LETTER OF TRANSMITTAL  AND SHARE CERTIFICATES.  This Letter
of Transmittal is to be  used either if Share  Certificates are to be  forwarded
herewith  or, unless an Agent's Message (as defined in the Offer to Purchase) is
utilized, if Shares are to be  delivered by book-entry transfer pursuant to  the
procedure  set forth in Section  3 of the Offer  to Purchase. Share Certificates
evidencing all physically  tendered Shares,  or a confirmation  of a  book-entry
transfer  into the Depositary's account at a Book-Entry Transfer Facility of all
Shares delivered by book-entry transfer as well as a properly completed and duly
executed Letter  of  Transmittal  (or  facsimile  thereof),  with  any  required
signature  guarantees,  or  an  Agent's  Message in  the  case  of  a book-entry
delivery, and any other documents required  by this Letter of Transmittal,  must
be  received by the Depositary at one of  its addresses set forth on the reverse
hereof prior to the  Expiration Date (as  defined in Section 1  of the Offer  to
Purchase).  If Share  Certificates are forwarded  to the  Depositary in multiple
deliveries, a properly completed  and duly executed  Letter of Transmittal  must
accompany  each  such delivery.  Stockholders whose  Share Certificates  are not
immediately available, who cannot deliver their Share Certificates and all other
required documents to the Depositary prior to the Expiration Date or who  cannot
complete the procedure for delivery by book-entry transfer on a timely basis may
tender  their Shares pursuant to the  guaranteed delivery procedure described in
Section 3 of the Offer to Purchase.  Pursuant to such procedure (i) such  tender
must  be made by or  through an Eligible Institution;  (ii) a properly completed
and duly executed Notice of Guaranteed Delivery, substantially in the form  made
available  by  Purchaser,  must  be  received by  the  Depositary  prior  to the
Expiration Date;  and (iii)  the Share  Certificates evidencing  all  physically
delivered Shares in proper form for transfer by delivery, or a confirmation of a
book-entry  transfer  into the  Depositary's  account at  a  Book-Entry Transfer
Facility of all Shares delivered by  book-entry transfer, in each case  together
with  a Letter of  Transmittal (or a facsimile  thereof), properly completed and
duly executed,  with any  required  signature guarantees  (or,  in the  case  of
book-entry  delivery, an Agent's  Message), and any  other documents required by
this Letter of Transmittal, must be received by the Depositary within three  New
York  Stock Exchange,  Inc. trading  days after  the date  of execution  of such
Notice of Guaranteed Delivery,  all as described  in Section 3  of the Offer  to
Purchase.
 
    The method of delivery of this Letter of Transmittal, Share Certificates and
all other required documents, including delivery through any Book-Entry Transfer
Facility,  is  at the  option and  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 and no
fractional Shares will be purchased. By execution of this Letter of  Transmittal
(or  a facsimile hereof), all tendering  stockholders 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 Share  Certificate numbers,  the number of
Shares evidenced by such  Share Certificates and the  number of Shares  tendered
should be listed on a separate schedule and attached hereto.
 
    4.  PARTIAL TENDERS (NOT APPLICABLE TO STOCKHOLDERS WHO TENDER BY BOOK-ENTRY
TRANSFER).   If  fewer than  all the Shares  evidenced by  any Share Certificate
delivered to the  Depositary herewith  are to be  tendered hereby,  fill in  the
number  of Shares which are to be tendered in the box entitled "Number of Shares
Tendered." In such cases, new  Share Certificate(s) evidencing the remainder  of
the  Shares  that were  evidenced  by the  Share  Certificates delivered  to the
Depositary herewith  will  be sent  to  the  person(s) signing  this  Letter  of
Transmittal,  unless otherwise  provided in  the box  entitled "Special Delivery
Instructions" on the reverse hereof, as soon as practicable after the expiration
or termination  of  the  Offer.  All  Shares  evidenced  by  Share  Certificates
delivered  to  the  Depositary  will  be deemed  to  have  been  tendered unless
otherwise indicated.
<PAGE>
    5.  SIGNATURES ON 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 with the name(s) as written on
the face of the  Share Certificates evidencing  such Shares without  alteration,
enlargement or any other change whatsoever.
 
    If  any Share tendered hereby is owned of record by two or more persons, all
such persons must sign this Letter of Transmittal.
 
    If any  of  the  Shares tendered  hereby  are  registered in  the  names  of
different  holders, it will  be necessary to  complete, sign and  submit as many
separate Letters of  Transmittal as  there are different  registrations of  such
Shares.
 
    If  this Letter of Transmittal is signed  by the registered holder(s) of the
Shares tendered hereby, no endorsements of Share Certificates or separate  stock
powers  are required,  unless payment  is to be  made to,  or Share Certificates
evidencing Shares not tendered or not purchased are to be issued in the name of,
a  person  other  than  the  registered  holder(s),  in  which  case  the  Share
Certificate(s)  evidencing  the  Shares  tendered  hereby  must  be  endorsed or
accompanied by appropriate stock  powers, in either case  signed exactly as  the
name(s)  of  the registered  holder(s) appear(s)  on such  Share Certificate(s).
Signatures on such Share Certificate(s) and  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  tendered hereby,  the Share  Certificate(s)
evidencing  the  Shares  tendered  hereby must  be  endorsed  or  accompanied by
appropriate stock powers, in  either case signed exactly  as the name(s) of  the
registered  holder(s) appear(s) on such Share Certificate(s). Signatures on such
Share Certificate(s)  and  stock  powers  must  be  guaranteed  by  an  Eligible
Institution.
 
    If  this Letter of  Transmittal or any  Share Certificate or  stock power is
signed  by  a  trustee,  executor,  administrator,  guardian,  attorney-in-fact,
officer of a corporation or other person acting in a fiduciary or representative
capacity,  such  person should  so indicate  when  signing, and  proper evidence
satisfactory to Purchaser of such persons authority so to act must be submitted.
 
    6.  STOCK TRANSFER TAXES.  Except as otherwise provided in this  Instruction
6,  Purchaser will  pay all stock  transfer taxes  with respect to  the sale and
transfer of any Shares to  it or its order pursuant  to the Offer. If,  however,
payment of the purchase price of any Shares purchased is to be made to, or Share
Certificate(s)  evidencing Shares not tendered or not purchased are to be issued
in the name of, a person other than the registered holder(s), the amount of  any
stock  transfer taxes (whether  imposed on the  registered holder(s), such other
person or otherwise)  payable on account  of the transfer  to such other  person
will  be  deducted from  the  purchase price  of  such Shares  purchased, unless
evidence satisfactory to Purchaser  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
evidencing the Shares tendered hereby.
 
    7.   SPECIAL PAYMENT AND DELIVERY INSTRUCTIONS.  If a check for the purchase
price of any  Shares tendered hereby  is to be  issued, or Share  Certificate(s)
evidencing Shares not tendered or not purchased are to be issued, in the name of
a  person other than the person(s) signing this Letter of Transmittal or if such
check or any  such Share Certificate  is to be  sent to someone  other than  the
person(s)  signing this Letter  of Transmittal or to  the person(s) signing this
Letter of  Transmittal but  at  an address  other than  that  shown in  the  box
entitled "Description of Shares Tendered" on the reverse hereof, the appropriate
boxes  on  the  reverse  of  this  Letter  of  Transmittal  must  be  completed.
Stockholders delivering  Shares  tendered  hereby  by  book-entry  transfer  may
request  that Shares not purchased  be credited to such  account maintained at a
Book-Entry Transfer  Facility  as such  stockholder  may designate  in  the  box
entitled  "Special  Payment  Instructions" on  the  reverse hereof.  If  no such
instructions are  given, all  such  Shares not  purchased  will be  returned  by
crediting  the account  at the  Book-Entry Transfer  Facility designated  on the
reverse hereof as the account from which such Shares were delivered.
 
    8.  QUESTIONS AND REQUESTS FOR  ASSISTANCE OR ADDITIONAL COPIES.   Questions
and  requests for  assistance may  be directed to  the Information  Agent or the
Dealer Manager  at their  respective addresses  or telephone  numbers set  forth
below.  Additional copies of  the Offer to Purchase,  this Letter of Transmittal
and the Notice of Guaranteed Delivery may be obtained from the Information Agent
or the  Dealer Manager  or  from brokers,  dealers,  commercial banks  or  trust
companies.
 
    9.   SUBSTITUTE FORM W-9.  Each tendering stockholder is required to provide
the Depositary  with a  correct Taxpayer  Identification Number  ("TIN") on  the
Substitute  Form W-9 which is provided  under "Important Tax Information" below,
and to certify  whether such  stockholder is  subject to  backup withholding  of
federal income tax. If a tendering stockholder has been notified by the Internal
<PAGE>
Revenue  Service that  such stockholder is  subject to  backup withholding, such
stockholder must cross out item (2)  of the Certification box of the  Substitute
Form  W-9,  unless such  stockholder  has since  been  notified by  the Internal
Revenue  Service  that  such  stockholder   is  no  longer  subject  to   backup
withholding.  Failure to provide the information  on the Substitute Form W-9 may
subject the tendering stockholder to 31%  federal income tax withholding on  the
payment  of the purchase price of all Shares purchased from such stockholder. If
the tendering stockholder has not been issued  a TIN and has applied for one  or
intends  to apply  for one  in the  near future,  such stockholder  should write
"Applied For" in the space provided for the TIN in Part I of the Substitute Form
W-9, and sign and date the Substitute  Form W-9. If "Applied For" is written  in
Part  I  and the  Depositary is  not provided  with  a TIN  within 60  days, the
Depositary will  withhold 31%  on all  payments of  the purchase  price to  such
stockholder until a TIN is provided to the Depositary.
 
    IMPORTANT:  THIS  LETTER  OF  TRANSMITTAL  (OR  FACSIMILE  HEREOF), PROPERLY
COMPLETED AND DULY EXECUTED (TOGETHER WITH ANY REQUIRED SIGNATURE GUARANTEES, OR
AN AGENT'S MESSAGE IN THE CASE OF BOOK-ENTRY DELIVERY, AND SHARE CERTIFICATES OR
CONFIRMATION OF  BOOK-ENTRY TRANSFER  AND  ALL OTHER  REQUIRED DOCUMENTS)  OR  A
PROPERLY  COMPLETED  AND DULY  EXECUTED NOTICE  OF  GUARANTEED DELIVERY  MUST BE
RECEIVED BY THE DEPOSITARY PRIOR TO THE EXPIRATION DATE (AS DEFINED IN THE OFFER
TO PURCHASE).
 
                           IMPORTANT TAX INFORMATION
 
    Under the federal income  tax law, a stockholder  whose tendered Shares  are
accepted  for payment is  required by law  to provide the  Depositary (as payer)
with such  stockholder's correct  TIN  on Substitute  Form  W-9 below.  If  such
stockholder  is an  individual, the  TIN is  such stockholder's  social security
number. If the Depositary is not provided with the correct TIN, the  stockholder
may  be subject to  a $500 penalty  imposed by the  Internal Revenue Service. In
addition, payments that  are made  to such  stockholder with  respect to  Shares
purchased pursuant to the Offer may be subject to 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, such  individual must  submit an  Internal Revenue  Form W-8,  signed
under penalties of perjury, attesting to such individual's exempt status. A Form
W-8  may  be  obtained from  the  Depositary.  See the  enclosed  Guidelines for
Certification of  Taxpayer  Identification Number  on  Substitute Form  W-9  for
additional instructions.
 
    If backup withholding applies, the Depositary is required to withhold 31% of
any  payments made to  the stockholder. 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.
 
PURPOSE OF SUBSTITUTE FORM W-9
 
    To prevent backup  withholding on payments  that are made  to a  stockholder
with  respect  to Shares  purchased pursuant  to the  Offer, the  stockholder is
required  to  notify  the  Depositary  of  such  stockholder's  correct  TIN  by
completing  the form below  certifying that the TIN  provided on Substitute Form
W-9 is correct (or that such stockholder  is awaiting a TIN), and that (i)  such
stockholder  has not been  notified by the  Internal Revenue Service  that he is
subject to backup withholding as a result of a failure to report all interest or
dividends or (ii)  the Internal  Revenue Service has  notified such  stockholder
that such stockholder is no longer subject to backup withholding.
 
WHAT NUMBER TO GIVE THE DEPOSITARY
 
    The  stockholder  is required  to give  the  Depositary the  social security
number or employer  identification number  of the  record holder  of the  Shares
tendered  hereby. 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. If the tendering  stockholder has not been issued a TIN
and has applied  for a  number or  intends to  apply for  a number  in the  near
future, the stockholder should write "Applied For" in the space provided for the
TIN  in Part I, and sign  and date the Substitute Form  W-9. If "Applied For" is
written in Part I and the Depositary is not provided with a TIN within 60  days,
the  Depositary will withhold 31% of all  payments of the purchase price to such
stockholder until a TIN is provided to the Depositary.
<PAGE>
 
<TABLE>
<S>                               <C>                                <C>
                                 PAYERS'S NAME: CITIBANK, N.A.
                                  PART I--Taxpayer Identification
                                  Number--
                                  For all accounts, enter your TIN
                                  in the box at right. (For most
                                  individuals, this is your social
                                  security number. If you do not
                                  have a TIN, see How to Obtain a
                                  TIN in the enclosed GUIDELINES.)     SOCIAL SECURITY NUMBER
                                  Certify by signing and dating                  OR
                                  below. Note: If the account is in
 SUBSTITUTE                       more than one name, see the chart   EMPLOYER IDENTIFICATION
 Form W-9                         in the enclosed GUIDELINES to                NUMBER
 Department of the Treasury       determine which number to give       (IF AWAITING TIN WRITE
 Internal Revenue Service         the payer.                                APPLIED FOR)
 PAYERS REQUEST FOR TAXPAYER      PART II--For Payees Exempt From Backup Withholding, see the
 IDENTIFICATION NUMBER (TIN)      enclosed GUIDELINES and complete as instructed therein.
 CERTIFICATION--Under penalties of perjury, I certify that:
 (1)  The number shown on this form is my correct Taxpayer Identification Number (or I am
      waiting for a number to be issued to me), and
 (2)   I am  not subject  to backup  withholding either  because (a)  I am  exempt from  backup
      withholding,  (b) I have  not been notified  by the Internal  Revenue Service (the "IRS")
      that I am subject to backup withholding as a result of failure to report all interest  or
      dividends,  or  (c) the  IRS  has notified  me  that I  am  no longer  subject  to backup
      withholding.
 CERTIFICATE INSTRUCTIONS--You must cross out item (2)  above if you have been notified by  the
 IRS that you are subject to backup withholding because of underreporting 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 item  (2). (Also  see instructions  in the
 enclosed GUIDELINES.)
 SIGNATURE                                                           DATE,  199
</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. FOR  ADDITIONAL
       DETAILS,  PLEASE  REVIEW  THE ENCLOSED  GUIDELINES  FOR  CERTIFICATION OF
       TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9.
 
    Facsimiles of the  Letter of  Transmittal will  be accepted.  The Letter  of
Transmittal  and Certificates evidencing Shares and any other required documents
should be  sent  or  delivered  by  each  stockholder  or  his  broker,  dealer,
commercial  book, trust company or other nominee to the Depositary at one of its
addresses set forth below.
 
    10.    ORDER  IN  WHICH  SHARES  WILL  BE  ACCEPTED.    (NOT  APPLICABLE  TO
SHAREHOLDERS  WHO TENDER BY BOOK-ENTRY TRANSFER.) In the event of proration, the
Shares listed in  the box  captioned "Description  of Shares  Tendered" will  be
accepted  for payment  in the  order in  which the  certificate numbers  of such
Shares are listed. Tendering stockholders who  wish to have Shares accepted  for
payment  in a specific order in the event of proration should list the Shares in
that order in the box captioned "Description of Shares Tendered."
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                                 CITIBANK, N.A.
 
<TABLE>
<S>                            <C>                            <C>
          BY MAIL:                 BY OVERNIGHT COURIER:                BY HAND:
       Citibank, N.A.                 Citibank, N.A.                 Citibank, N.A.
      c/o Citicorp Data              c/o Citicorp Data           Corporate Trust Window
     Distribution, Inc.             Distribution, Inc.               111 Wall Street
        P.O. Box 1429                 404 Sette Drive                   5th Floor
      Paramus, NJ 07653              Paramus, NJ 07652                New York, NY
 
                                       BY FACSIMILE:
                                (For Eligible Institutions
                                           Only)
                                      (201) 262-3240
 
                                   CONFIRM BY TELEPHONE:
                                      (800) 422-2077
</TABLE>
 
<PAGE>
    Questions or requests for assistance may  be directed to the Dealer  Manager
or  Information Agent at their respective addresses and telephone numbers listed
below. Additional copies of the Offer to Purchase, the Letter of Transmittal and
the Notice of Guaranteed Delivery may be obtained from the Information Agent.  A
stockholder  may  also  contact  brokers,  dealers,  commercial  banks  or trust
companies for assistance concerning the Offer.
 
                    THE INFORMATION AGENT FOR THE OFFER IS:
                            GEORGESON & COMPANY INC.
                               WALL STREET PLAZA
                            NEW YORK, NEW YORK 10005
                 BANKS AND BROKERS CALL COLLECT (212) 440-9800
                         CALL TOLL FREE: 1-800-223-2064
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                UNTERBERG HARRIS
 
                         275 Battery Street, 29th Floor
                        San Francisco, California 94111
                         CALL TOLL FREE: 1-800-622-8448

<PAGE>
                         NOTICE OF GUARANTEED DELIVERY
                                      for
                        Tender of Shares of Common Stock
                  (Including the Common Share Purchase Rights)
                                       of
                              CRAY RESEARCH, INC.
                   (Not to be Used for Signature Guarantees)
 
    This Notice of Guaranteed Delivery, or one substantially in the form hereof,
must  be used to accept the Offer (as defined below) (i) if certificates ("Share
Certificates") evidencing shares of common stock, par value $1.00 per share (the
"Shares"), of Cray Research,  Inc., a corporation  organized and existing  under
the  laws of the State  of Delaware (the "Company"),  including the Common Share
Purchase Rights (the "Rights")  issued pursuant to  the Rights Agreement,  dated
May  15, 1989, between the Company and Norwest Bank Minnesota, N.A. (the "Rights
Agreement"), are not immediately available,  (ii) if Share Certificates and  all
other  required documents cannot  be delivered to  Citibank, N.A., as Depositary
(the "Depositary"), prior to the Expiration Date (as defined in Section 1 of the
Offer to Purchase (as defined below)) or (iii) if the procedure for delivery  by
book-entry  transfer  cannot be  completed  on a  timely  basis. This  Notice of
Guaranteed Delivery may be delivered by hand or mail or transmitted by  telegram
or facsimile transmission to the Depositary. All references herein to the Rights
include  all benefits which may inure to stockholders of the Company pursuant to
the Rights Agreement, and unless the context requires otherwise, all  references
herein to Shares include the Rights. See Section 3 of the Offer to Purchase.
 
                        THE DEPOSITARY FOR THE OFFER IS:
                                 CITIBANK, N.A.
 
<TABLE>
<S>                            <C>                            <C>
          BY MAIL:                 BY OVERNIGHT COURIER:                BY HAND:
       Citibank, N.A.                 Citibank, N.A.                 Citibank, N.A.
      c/o Citicorp Data              c/o Citicorp Data           Corporate Trust Window
     Distribution, Inc.             Distribution, Inc.               111 Wall Street
        P.O. Box 1429                 404 Sette Drive                   5th Floor
      Paramus, NJ 07653              Paramus, NJ 07652                New York, NY
 
                                       BY FACSIMILE:
                                (For Eligible Institutions
                                           Only)
                                      (201) 262-3240
 
                                   CONFIRM BY TELEPHONE:
                                      (800) 422-2077
</TABLE>
 
    DELIVERY  OF THIS NOTICE OF GUARANTEED DELIVERY  TO AN ADDRESS OTHER THAN AS
SET FORTH  ABOVE, OR  TRANSMISSION OF  INSTRUCTIONS VIA  FACSIMILE  TRANSMISSION
OTHER THAN AS SET FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.
 
    This  form is not  to be used to  guarantee signatures. If  a signature on a
Letter of Transmittal is required to be guaranteed by an "Eligible  Institution"
under  the instructions  thereto, such  signature guarantee  must appear  in the
applicable space provided in the signature box on the Letter of Transmittal.
<PAGE>
Ladies and Gentlemen:
 
    The undersigned hereby tenders to  C Acquisition Corporation, a  corporation
organized  and existing under the laws of the State of Delaware and wholly owned
subsidiary of Silicon Graphics, Inc., a Delaware corporation, upon the terms and
subject to the conditions set forth in the Offer to Purchase, dated February 29,
1996 (the "Offer  to Purchase"), and  the related Letter  of Transmittal  (which
together   constitute  the  "Offer"),  receipt  of   each  of  which  is  hereby
acknowledged, the number of  Shares specified below  pursuant to the  guaranteed
delivery procedure described in Section 3 of the Offer to Purchase.
 
<TABLE>
<S>                                                       <C>
Number of Shares: --------------------------                    --------------------------------------------
Certificate Nos. (if available): ----------------               --------------------------------------------
- - - - --------------------------------------------                             SIGNATURE(S) OF HOLDER(S)
Check one box if Shares will be delivered by book-entry        Dated: ------------------------------, 199 --
transfer:                                                                  Name(s) of Holder(s):
  / / The Depository Trust Company                              --------------------------------------------
  / / Philadelphia Depository Trust Company                     --------------------------------------------
Account No.: -------------------------------                                PLEASE TYPE OR PRINT
                                                          -------------------------------------------------------
                                                                                  ADDRESS
                                                          -------------------------------------------------------
                                                                                  ZIP CODE
                                                          -------------------------------------------------------
                                                                        AREA CODE AND TELEPHONE NO.
</TABLE>
 
                                   GUARANTEE
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
    The  undersigned,  a  firm  which  is  a  member  of  a  registered national
securities exchange or of the  National Association of Securities Dealers,  Inc.
or which is a commercial bank or trust company having an office or correspondent
in  the United States,  guarantees to deliver  to the Depositary,  at one of its
addresses set forth  above, Share  Certificates evidencing  the Shares  tendered
hereby,  in proper form for transfer,  or confirmation of book-entry transfer of
such Shares into the Depositary's account at The Depository Trust Company or the
Philadelphia Depository Trust Company, in each case with delivery of a Letter of
Transmittal (or facsimile  thereof) properly completed  and duly executed,  with
any required signature guarantees or an Agent's Message (as defined in the Offer
to  Purchase)  in the  case of  a  book-entry delivery,  and any  other required
documents, all within three  New York Stock Exchange,  Inc. trading days of  the
date hereof.
 
<TABLE>
<S>                                            <C>
- - - - --------------------------------------------   --------------------------------------------
                NAME OF FIRM                               AUTHORIZED SIGNATURE
 
- - - - ---------------------------------------------  ---------------------------------------------
                   ADDRESS                                         TITLE
 
- - - - ---------------------------------------------   Name: -------------------------------------
 
- - - - --------------------------------------------   Dated: ------------------------------, 199 --
         AREA CODE AND TELEPHONE NO.
</TABLE>
 
                DO NOT SEND SHARE CERTIFICATES WITH THIS NOTICE.
                  SHARE CERTIFICATES SHOULD BE SENT WITH YOUR
                             LETTER OF TRANSMITTAL.

<PAGE>
                                UNTERBERG HARRIS
                         275 Battery Street, 29th Floor
                        San Francisco, California 94111
                           Offer to Purchase for Cash
                       19,218,735 Shares of Common Stock
                  (Including the Common Share Purchase Rights)
                                       of
                              CRAY RESEARCH, INC.
                                       at
                              $30.00 Net Per Share
                                       by
                           C ACQUISITION CORPORATION
                          a wholly owned subsidiary of
                             SILICON GRAPHICS, INC.
 
        THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON WEDNESDAY, MARCH 27, 1996,
                         UNLESS THE OFFER IS EXTENDED.
 
                                                               February 29, 1996
 
To Brokers, Dealers, Commercial Banks,
Trust Companies and Other Nominees:
 
    We have been appointed by C Acquisition Corporation, a corporation organized
and  existing under the laws  of the State of  Delaware ("Purchaser") and wholly
owned subsidiary of Silicon Graphics,  Inc., a Delaware corporation  ("Parent"),
to  act  as Dealer  Manager  in connection  with  Purchaser's offer  to purchase
19,218,735 shares of Common Stock, par value $1.00 per share (the "Shares"),  of
Cray  Research, Inc., a corporation organized and existing under the laws of the
State of Delaware (the  "Company"), including the  Common Share Purchase  Rights
(the  "Rights") issued  pursuant to  the Rights  Agreement, dated  May 15, 1989,
between the Company and Norwest  Bank Minnesota, N.A. (the "Rights  Agreement"),
at  a price of $30.00 per  Share, net to the seller  in cash, upon the terms and
subject to the  conditions set  forth in  Purchaser's Offer  to Purchase,  dated
February  29,  1996  (the  "Offer  to  Purchase"),  and  the  related  Letter of
Transmittal (which  together  constitute  the "Offer")  enclosed  herewith.  All
references  herein  to  the  Rights  include all  benefits  which  may  inure to
stockholders of the  Company pursuant to  the Rights Agreement,  and unless  the
context  requires otherwise, all references herein to Shares include the Rights.
Please furnish copies  of the enclosed  materials to those  of your clients  for
whose  accounts you hold Shares  registered in your name or  in the name of your
nominee.
 
    THE OFFER  IS CONDITIONED  UPON,  AMONG OTHER  THINGS, THERE  BEING  VALIDLY
TENDERED  AND NOT WITHDRAWN  PRIOR TO THE  EXPIRATION OF THE  OFFER AT LEAST THE
NUMBER OF SHARES  THAT WHEN ADDED  TO THE  SHARES ALREADY OWNED  BY PARENT  WILL
CONSTITUTE A MAJORITY OF THE THEN OUTSTANDING SHARES ON A FULLY DILUTED BASIS.
 
    Enclosed for your information and use are copies of the following documents:
 
        1.  Offer to Purchase, dated February 29, 1996;
 
        2.   Letter of Transmittal to be  used by holders of Shares in accepting
    the Offer and tendering Shares;
<PAGE>
        3.  Notice of Guaranteed Delivery to be used to accept the Offer if  the
    Shares  and all  other required documents  are not  immediately available or
    cannot be delivered to Citibank,  N.A. (the "Depositary") by the  Expiration
    Date  (as  defined  in  the  Offer to  Purchase)  or  if  the  procedure for
    book-entry transfer cannot be completed by the Expiration Date;
 
        4.  A  letter to  stockholders of the  Company from  J. Phillip  Samper,
    Chairman  and  Chief  Executive  Officer of  the  Company,  together  with a
    Solicitation/Recommendation Statement  on  Schedule  14D-9  filed  with  the
    Securities and Exchange Commission by the Company;
 
        5.   A letter which  may be sent to your  clients for whose accounts you
    hold Shares registered in  your name or  in the name  of your nominee,  with
    space  provided for obtaining  such clients instructions  with regard to the
    Offer;
 
        6.  Guidelines  for Certification of  Taxpayer Identification Number  on
    Substitute Form W-9; and
 
        7.  Return envelope addressed to the Depositary.
 
    WE  URGE YOU TO  CONTACT YOUR CLIENTS  AS PROMPTLY AS  POSSIBLE. PLEASE NOTE
THAT THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS EXPIRE AT 12:00 MIDNIGHT,
NEW YORK CITY TIME, ON WEDNESDAY, MARCH 27, 1996, UNLESS THE OFFER IS EXTENDED.
 
    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) certificates
evidencing such  Shares (or  a confirmation  of a  book-entry transfer  of  such
Shares  into  the  Depositary's  account  at  one  of  the  Book-Entry  Transfer
Facilities (as defined in the Offer to Purchase)), (ii) a Letter of  Transmittal
(or  facsimile thereof) 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 delivery  of Shares and (iii) and any
other required documents required by the Letter of Transmittal.
 
    If holders of Shares wish to tender Shares, but cannot deliver such  holders
certificates  or other required  documents, or cannot  comply with the procedure
for book-entry transfer, prior to the expiration  of the Offer, a tender may  be
effected  by following the guaranteed delivery  procedure described in Section 3
of the Offer to Purchase.
 
    Purchaser will not  pay any  fees or commissions  to any  broker, dealer  or
other person (other than the Dealer Manager, Depositary and Information Agent as
described in the Offer) in connection with the solicitation of tenders of Shares
pursuant  to  the Offer.  However, Purchaser  will  reimburse you  for customary
mailing and handling expenses incurred by you in forwarding any of the  enclosed
materials  to your  clients. Purchaser will  pay or  cause to be  paid any stock
transfer taxes payable with respect to the  transfer of Shares to it, except  as
otherwise provided in Instruction 6 of the Letter of Transmittal.
 
    Any inquiries you may have with respect to the Offer should be addressed to,
and  additional copies of the enclosed  materials may be obtained by contacting,
Unterberg Harris L.P.,  the Dealer Manager,  or Georgeson &  Company, Inc.,  the
Information Agent, at their respective addresses and telephone numbers set forth
on the back cover page of the Offer to Purchase.
 
    Additional  copies  of  the  enclosed  material  may  be  obtained  from the
Information Agent at  the address  and telephone number  set forth  on the  back
cover page of the Offer to Purchase.
 
                                          Very truly yours,
 
                                          UNTERBERG HARRIS
 
    NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL AUTHORIZE YOU OR
ANY  OTHER PERSON TO ACT ON BEHALF OF  OR AS THE AGENT OF PARENT, PURCHASER, THE
COMPANY, UNTERBERG HARRIS, THE  INFORMATION AGENT OR THE  DEPOSITARY, OR OF  ANY
AFFILIATE  OF ANY  OF THEM,  OR AUTHORIZE  YOU OR  ANY OTHER  PERSON TO  USE ANY
DOCUMENT OR TO MAKE ANY  STATEMENT ON BEHALF OF ANY  OF THEM IN CONNECTION  WITH
THE  OFFER  OTHER  THAN  THE ENCLOSED  DOCUMENTS  AND  THE  STATEMENTS CONTAINED
THEREIN.

<PAGE>
                           Offer to Purchase for Cash
                       19,218,735 Shares of Common Stock
                  (Including the Common Share Purchase Rights)
                                       of
                              CRAY RESEARCH, INC.
                                       at
                              $30.00 Net Per Share
                                       by
                           C ACQUISITION CORPORATION
                          a wholly owned subsidiary of
                             SILICON GRAPHICS, INC.
 
        THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON WEDNESDAY, MARCH 27, 1996,
                         UNLESS THE OFFER IS EXTENDED.
 
To Our Clients:
 
    Enclosed for your consideration are an Offer to Purchase, dated February 29,
1996  (the  "Offer  to  Purchase"),  and  a  related  Letter  of  Transmittal in
connection with the offer by C Acquisition Corporation, a corporation  organized
and  existing under the laws  of the State of  Delaware ("Purchaser") and wholly
owned subsidiary of Silicon Graphics,  Inc., a Delaware corporation  ("Parent"),
to  purchase 19,218,735 shares of  common stock, par value  $1.00 per share (the
"Shares"), of Cray Research, a corporation organized and existing under the laws
of the State of  Delaware (the "Company"), including  the Common Share  Purchase
Rights  (the "Rights")  issued pursuant to  the Rights Agreement,  dated May 15,
1989, between  the  Company  and  Norwest  Bank  Minnesota,  N.A.  (the  "Rights
Agreement"), at a price of $30.00 per Share, net to the seller in cash, upon the
terms  and subject to the  conditions set forth in the  Offer to Purchase and in
the related Letter of Transmittal  (which together constitute the "Offer").  All
references  herein  to  the  Rights  include all  benefits  which  may  inure to
stockholders of the  Company pursuant to  the Rights Agreement,  and unless  the
context requires otherwise, all references herein to Shares include the Rights.
 
    We  are (or our  nominee is) the holder  of record of Shares  held by us for
your account. A TENDER OF SUCH  SHARES CAN BE MADE ONLY  BY US AS THE HOLDER  OF
RECORD AND PURSUANT TO YOUR INSTRUCTIONS. THE LETTER OF TRANSMITTAL IS FURNISHED
TO YOU FOR YOUR INFORMATION ONLY AND CANNOT BE USED BY YOU TO TENDER SHARES HELD
BY US FOR YOUR ACCOUNT.
 
    We  request instructions as  to whether you  wish to have  us tender on your
behalf any or all of the Shares held by us for your account, upon the terms  and
subject to the conditions set forth in the Offer.
 
    Your attention is invited to the following:
 
        1.  The tender price is $30.00 per Share, net to the seller in cash.
 
        2.  The Offer is being made for 19,218,735 Shares.
 
        3.   The  Board of Directors  of the Company  unanimously has determined
    that each of the Offer and the Merger is fair to, and in the best  interests
    of, the stockholders of the Company, and recommends that stockholders accept
    the Offer and tender all of their Shares pursuant to the Offer.
 
        4.   The  Offer, proration period  and withdrawal rights  will expire at
    12:00 midnight, New York City time, on Wednesday, March 27, 1996, unless the
    Offer is extended.
<PAGE>
        5.   The Offer  is conditioned  upon, among  other things,  there  being
    validly  tendered and not withdrawn prior to  the expiration of the Offer at
    least the number of Shares  that when added to  the Shares already owned  by
    Parent  will constitute a majority of the then outstanding Shares on a fully
    diluted basis.
 
        6.  Upon the terms and subject  to the conditions of the Offer, if  more
    than 19,218,735 Shares are validly tendered prior to the Expiration Date (as
    defined  in Section 1 of the Offer to Purchase) and not withdrawn, Shares so
    tendered and not withdrawn will be accepted for payment on a PRO RATA  basis
    as described in the Offer to Purchase.
 
        7.   Tendering stockholders will not  be obligated to pay brokerage fees
    or commissions or,  except as  otherwise provided  in Instruction  6 of  the
    Letter  of Transmittal, stock transfer taxes with respect to the purchase of
    Shares by Purchaser pursuant to the Offer.
 
    If you wish to have us tender any or all of your Shares, please so  instruct
us  by completing, executing and returning  to us the instruction form contained
in this  letter. An  envelope in  which to  return your  instructions to  us  is
enclosed.  If you authorize the  tender of your Shares,  all such Shares will be
tendered unless  otherwise specified  in  your instructions.  YOUR  INSTRUCTIONS
SHOULD  BE FORWARDED TO US IN AMPLE TIME TO PERMIT US TO SUBMIT A TENDER ON YOUR
BEHALF PRIOR TO THE EXPIRATION OF THE OFFER.
 
    The Offer is made solely by the Offer to Purchase and the related Letter  of
Transmittal  and is being made to all  holders of Shares. Purchaser is not aware
of  any  jurisdiction  where   the  making  of  the   Offer  is  prohibited   by
administrative  or  judicial  action pursuant  to  any valid  state  statute. If
Purchaser becomes aware of any valid state statute prohibiting the making of the
Offer or the acceptance of Shares  pursuant thereto, Purchaser will make a  good
faith  effort  to comply  with such  state  statute. If,  after such  good faith
effort, Purchaser cannot comply with such  state statute, the Offer will not  be
made  to (nor  will tenders  be accepted from  or on  behalf of)  the holders of
Shares in such  state. 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 Purchaser by Unterberg Harris L.P.
or one or more  registered brokers or  dealers licensed under  the laws of  such
jurisdiction.
<PAGE>
                          INSTRUCTIONS WITH RESPECT TO
                         THE OFFER TO PURCHASE FOR CASH
                       19,218,735 SHARES OF COMMON STOCK
                  (INCLUDING THE COMMON SHARE PURCHASE RIGHTS)
                                       of
                              CRAY RESEARCH, INC.
                                       by
                           C ACQUISITION CORPORATION
                          a wholly owned subsidiary of
                             SILICON GRAPHICS, INC.
 
    The undersigned acknowledge(s) receipt of your letter and the enclosed Offer
to  Purchase, dated  February 29,  1996, and  the related  Letter of Transmittal
(which together  constitute the  "Offer")  in connection  with  the offer  by  C
Acquisition  Corporation, a corporation organized and existing under the laws of
the State of Delaware and wholly  owned subsidiary of Silicon Graphics, Inc.,  a
Delaware  corporation, to purchase 19,218,735 Shares  of common stock, par value
$1.00 per share (the "Shares"), of Cray Research, Inc., a corporation  organized
and existing under the laws of the State of Delaware, including the Common Share
Purchase  Rights (the "Rights")  issued pursuant to  the Rights Agreement, dated
May 15, 1989, between the Company and Norwest Bank Minnesota, N.A. (the  "Rights
Agreement").  All references herein to the Rights include all benefits which may
inure to  stockholders of  the Company  pursuant to  the Rights  Agreement,  and
unless  the context requires otherwise, all  references herein to Shares include
the Rights.
 
    This will instruct you to tender  the number of Shares indicated below  (or,
if  no number  is indicated  below, all  Shares) that  are held  by you  for the
account of the  undersigned, upon the  terms and subject  to the conditions  set
forth in the Offer.
 
Dated:
- - - - ----------------------------, 199
- - - - --                                                      SIGN HERE
 
<TABLE>
<S>                                     <C>
                         Number of
                 Shares
                                        ----------------------------------------
                           to be
               Tendered:
- - - - ----------------------------------------
                                        ----------------------------------------
                Shares*                        SIGNATURE(S) OF HOLDER(S)
 
                                        Name(s) of Holder(s):
 
                                        ----------------------------------------
                                                  PLEASE TYPE OR PRINT
 
                                        ----------------------------------------
                                                        ADDRESS
 
                                        ----------------------------------------
                                                        ZIP CODE
 
                                        ----------------------------------------
                                             AREA CODE AND TELEPHONE NUMBER
 
                                        ----------------------------------------
                                           TAXPAYER IDENTIFICATION OR SOCIAL
                                                    SECURITY NUMBER
</TABLE>
 
* Unless otherwise indicated, it will be assumed that all Shares held by us for
your account are to be tendered.

<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
 
GUIDELINES  FOR DETERMINING THE PROPER IDENTIFICATION  NUMBER TO GIVE THE PAYER.
- - - - -- Social Security  numbers have  nine digits  separated by  two hyphens,  e.g.,
000-00-0000.  Employer identification numbers have nine digits separated by only
one hyphen, e.g., 00-0000000. The table below will help determine the number  to
give the payer.
 
<TABLE>
<C>        <S>                          <C>
- - - - -------------------------------------------------------------
                                        GIVE THE SOCIAL
                                        SECURITY
                                        NUMBER OF --
FOR THIS TYPE OF ACCOUNT:
- - - - -------------------------------------------------------------
 
       1.  An individual's account      The individual
 
       2.  Two or more individuals      The actual owner of
           (joint account)              the account or, if
                                        combined funds, the
                                        first individual on
                                        the account(1)
 
       3.  Husband and wife (joint      The actual owner of
           account)                     the account or, if
                                        joint funds, either
                                        person(1)
 
       4.  Custodian account of a       The minor(2)
           minor (Uniform Gift to
           Minors Act)
 
       5.  Adult and minor (joint       The adult or, if the
           account)                     minor is the only
                                        contributor, the
                                        minor(1)
 
       6.  Account in the name of       The ward, minor, or
           guardian or committee for a  incompetent person(3)
           designated ward, minor, or
           incompetent person
 
       7.  a. A revocable savings       The
           trust account (in which      grantor-trustee(1)
              grantor is also trustee)
 
           b. Any "trust" account that  The actual owner(1)
              is not a legal or valid
              trust under State law
- - - - -------------------------------------------------------------
                                        GIVE THE EMPLOYER
                                        IDENTIFICATION NUMBER
                                        OF --
FOR THIS TYPE OF ACCOUNT:
- - - - -------------------------------------------------------------
 
       8.  Sole proprietorship account  The owner(4)
 
       9.  A valid trust, estate, or    The legal entity (do
           pension trust                not furnish the
                                        identifying number of
                                        the personal
                                        representative or
                                        trustee unless the
                                        legal entity itself
                                        is not designated in
                                        the account title)(5)
 
      10.  Corporate account            The corporation
 
      11.  Religious, charitable, or    The organization
           educational organization
           account
 
      12.  Partnership account held in  The partnership
           the name of the business
 
      13.  Association, club, or other  The organization
           tax-exempt organization
 
      14.  A broker or registered       The broker or nominee
           nominee
 
      15.  Account with the Department  The public entity
           of Agriculture in the name
           of a public entity (such as
           a State or local
           government, school
           district, or prison) that
           receives agricultural
           program payments
</TABLE>
 
<TABLE>
<C>        <S>                          <C>
- - - - -------------------------------------------------------------
- - - - -------------------------------------------------------------
</TABLE>
 
(1) List first and circle the name of the person whose number you furnish.
 
(2) Circle the minor's name and furnish the minor's social security number.
 
(3)  Circle the  ward's, minor's or  incompetent person's name  and furnish such
    person's social security number.
 
(4) Show  the  name of  the  owner.  If the  owner  does not  have  an  employer
    identification number, furnish the owner's social security number.
 
(5) List first and circle the name of the legal trust, estate or pension trust.
 
NOTE: If no name is circled when there is more than one name, the number will be
      considered to be that of the first name listed.
<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                     PAGE 2
 
OBTAINING A NUMBER
 
If  you do  not have a  taxpayer identification number  or you do  not know your
number, obtain Form  SS-5, Application for  a Social Security  Number Card  (for
individuals),  or Form SS-4, Application for Employer Identification Number (for
businesses and  all  other  entities),  at an  office  of  the  Social  Security
Administration or the Internal Revenue Service.
 
To  complete Substitute Form W-9, if you  do not have a tax-payer identification
number, write "Applied For" in the space for the taxpayer identification  number
in  Part 1, sign and date the Form, and give it to the requester. Generally, you
will then have 60 days to obtain a taxpayer identification number and furnish it
to the requester. If the requester does not receive your taxpayer identification
number within 60 days,  backup withholding, if applicable,  will begin and  will
continue until you furnish your taxpayer identification number to the requester.
 
PAYEES EXEMPT FROM BACKUP WITHHOLDING PENALTIES
 
Payees specifically exempted from backup withholding on ALL payments include the
following:*
 
  - A corporation.
 
  - A financial institution.
 
  - An organization exempt from tax under section 501(a),
    or  an  individual retirement  plan, or  a  custodial account  under section
    403(b)(7).
 
  - The United States or any agency or instrumentality
    thereof.
 
  - A   State,   the    District   of    Columbia,   a    possession   of    the
    United States, or any political subdivision or instrumentality thereof.
 
  - A foreign government or a political subdivision, agency
    or instrumentality thereof.
 
  - An international organization or any agency or
    instrumentality thereof.
 
  - A registered dealer in securities or commodities
    registered in the United States or a possession of the United States.
 
  - A real estate investment trust.
 
  - A    common    trust   fund    operated    by   a    bank    under   section
    584(a).
 
  - An  entity   registered   at  all   times   during  the   tax   year   under
    the Investment Company Act of 1940.
 
  - A foreign central bank of issue.
 
Payments  of dividends and  patronage dividends not  generally subject to backup
withholding include the following:
 
  - Payments to nonresident aliens subject to withholding
    under section 1441.
 
  - Payments to partnerships not engaged in a trade or
    business in  the United  States  and which  have  at least  one  nonresident
    partner.
 
  - Payments of patronage dividends where the amount
    received is not paid in money.
- - - - ----------
* Unless  otherwise noted herein, all references  below to section numbers or to
  regulations are references to  the Internal Revenue  Code and the  regulations
  promulgated thereunder.
 
  - Payments made by certain foreign organizations.
 
  - Payments made to a nominee.
 
Payments  of interest  not generally subject  to backup  withholding include the
following:
 
  - Payments of interest on obligations issued by
    individuals. NOTE: You  may be  subject to  backup withholding  if (i)  this
    interest  is $600 or  more, (ii) the interest  is paid in  the course of the
    payer's trade  or business  and (iii)  you have  not provided  your  correct
    taxpayer identification number to the payer.
 
  - Payments of tax-exempt interest (including exempt-
    interest dividends under section 852).
 
  - Payments described in section 6049(b)(5) to non-
    resident aliens.
 
  - Payments on tax-free covenant bonds under
    section 1451.
 
  - Payments made by certain foreign organizations.
 
  - Payments made to a nominee.
 
EXEMPT  PAYEES  DESCRIBED  ABOVE SHOULD  FILE  A  SUBSTITUTE FORM  W-9  TO AVOID
POSSIBLE ERRONEOUS BACKUP WITHHOLDING.  FILE THIS FORM  WITH THE PAYER,  FURNISH
YOUR  TAXPAYER IDENTIFICATION  NUMBER, WRITE "EXEMPT"  ON THE FACE  OF THE FORM,
SIGN AND DATE THE FORM AND RETURN IT TO THE PAYER.
 
Certain payments other  than interest, dividends,  and patronage dividends  that
are  not  subject  to  information  reporting are  also  not  subject  to backup
withholding. For details,  see the  regulations under  sections 6041,  6041A(a),
6045, and 6050A.
 
PRIVACY  ACT  NOTICE.--Section  6109  requires  most  recipients  of  dividends,
interest, or other payments  to give taxpayer  identification numbers to  payers
who  must  report  the  payments  to  the IRS.  The  IRS  uses  the  numbers for
identification purposes and  to help  verify the  accuracy of  your tax  return.
Payers  must be given the numbers whether or not recipients are required to file
tax returns. Payers must generally withhold 31% of taxable interest,  dividends,
and  certain  other  payments  to  a  payee  who  does  not  furnish  a taxpayer
identification number to a payer. Certain penalties may also apply.
 
PENALTIES
 
(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.--If you  fail
to  furnish your taxpayer identification number to a payer, you are subject to a
penalty of $50 for each  such failure unless your  failure is due to  reasonable
cause and not to willful neglect.
 
(2) CIVIL PENALTY FOR FALSE STATEMENTS WITH RESPECT TO WITHHOLDING.--If you make
a  false statement with  no reasonable basis  which results in  no imposition of
backup withholding, you are subject to a penalty of $500.
 
(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION.--If you falsify  certifications
or  affirmations, you are  subject to criminal  penalties including fines and/or
imprisonment.
 
                           FOR ADDITIONAL INFORMATION
                       CONTACT YOUR TAX CONSULTANT OR THE
                            INTERNAL REVENUE SERVICE

<PAGE>
                                                                  EXHIBIT (A)(7)
 
                        [FORM OF SUMMARY ADVERTISEMENT]
 
    THIS  ANNOUNCEMENT IS NEITHER AN OFFER TO  PURCHASE NOR A SOLICITATION OF AN
OFFER TO SELL SHARES. THE  OFFER IS MADE SOLELY BY  THE OFFER TO PURCHASE  DATED
FEBRUARY  29, 1996 AND THE  RELATED LETTER OF TRANSMITTAL,  AND IS BEING MADE TO
ALL HOLDERS OF SHARES. PURCHASER IS NOT  AWARE OF ANY STATE WHERE THE MAKING  OF
THE  OFFER IS  PROHIBITED BY ADMINISTRATIVE  OR JUDICIAL ACTION  PURSUANT TO ANY
VALID STATE  STATUTE. IF  PURCHASER BECOMES  AWARE OF  ANY VALID  STATE  STATUTE
PROHIBITING  THE  MAKING  OF THE  OFFER  OR  THE ACCEPTANCE  OF  SHARES PURSUANT
THERETO, PURCHASER  WILL MAKE  A GOOD  FAITH EFFORT  TO COMPLY  WITH SUCH  STATE
STATUTE.  IF, AFTER  SUCH GOOD FAITH  EFFORT, PURCHASER CANNOT  COMPLY WITH SUCH
STATE STATUTE, THE OFFER WILL NOT BE MADE TO (NOR WILL TENDERS BE ACCEPTED  FROM
OR  ON BEHALF OF) THE HOLDERS OF SHARES IN SUCH STATE. 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
PURCHASER BY  UNTERBERG HARRIS  OR ONE  OR MORE  REGISTERED BROKERS  OR  DEALERS
LICENSED UNDER THE LAWS OF SUCH JURISDICTION.
 
                      NOTICE OF OFFER TO PURCHASE FOR CASH
                       19,218,735 SHARES OF COMMON STOCK
                  (INCLUDING THE COMMON SHARE PURCHASE RIGHTS)
                                       OF
                              CRAY RESEARCH, INC.
                                       AT
                              $30.00 NET PER SHARE
                                       BY
                           C ACQUISITION CORPORATION
                          a wholly owned subsidiary of
                             SILICON GRAPHICS, INC.
 
    C  Acquisition Corporation, a  corporation organized and  existing under the
laws of  the State  of Delaware  ("Purchaser") and  wholly owned  subsidiary  of
Silicon  Graphics,  Inc.,  a  Delaware corporation  ("Parent"),  is  offering to
purchase 19,218,735 shares  (the "Offered  Number") of common  stock, par  value
$1.00  per share (the "Shares"), of  Cray Research, Inc. a corporation organized
and existing under the laws of the State of Delaware (the "Company"),  including
the  Common Share Purchase  Rights (the "Rights") issued  pursuant to the Rights
Agreement, dated May 15, 1989, between  the Company and Norwest Bank  Minnesota,
N.A. (the "Rights Agreement"), at a price of $30.00 per Share, net to the seller
in  cash, upon the terms and subject to the conditions set forth in the Offer to
Purchase, dated February 29, 1996 (the "Offer to Purchase"), and in the  related
Letter  of Transmittal (which  together constitute the  "Offer"). All references
herein to the Rights include all benefits which may inure to stockholders of the
Company pursuant  to  the Rights  Agreement,  and unless  the  context  requires
otherwise,  all references  herein to Shares  include the  Rights. Following the
Offer, Purchaser intends to effect the Merger (as defined below).
 
             THE OFFER, PRORATION PERIOD AND WITHDRAWAL RIGHTS WILL
           EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON WEDNESDAY,
                  MARCH 27, 1996, UNLESS THE OFFER IS EXTENDED.
 
    THE OFFER  IS CONDITIONED  UPON,  AMONG OTHER  THINGS, THERE  BEING  VALIDLY
TENDERED  AND NOT WITHDRAWN  PRIOR TO THE  EXPIRATION OF THE  OFFER AT LEAST THE
NUMBER OF SHARES  THAT WHEN ADDED  TO THE  SHARES ALREADY OWNED  BY PARENT  WILL
CONSTITUTE A MAJORITY OF THE THEN OUTSTANDING SHARES ON A FULLY DILUTED BASIS.
<PAGE>
    The  Offer is being made pursuant to the Agreement and Plan of Merger, dated
as of February 25,  1996 (the "Merger Agreement"),  among Parent, Purchaser  and
the  Company. The Merger Agreement provides that, among other things, as soon as
practicable after  the  purchase  of  Shares  pursuant  to  the  Offer  and  the
satisfaction  of the other conditions  set forth in the  Merger Agreement and in
accordance with the relevant  provisions of the General  Corporation Law of  the
State  of Delaware ("Delaware Law"), Purchaser will  be merged with and into the
Company (the "Merger"). 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 held  in the treasury  of the Company  or
owned  by Purchaser, Parent or any direct or indirect wholly owned subsidiary of
Parent or of the  Company ("Ineligible Shares"), and  other than Shares held  by
stockholders  who shall  have demanded and  perfected appraisal  rights, if any,
under Delaware Law) will be cancelled and converted automatically into the right
to receive (i) 1.00 fully paid and non-assessable share of Parent's common stock
(the "Exchange Ratio"); provided, however, that if Purchaser accepts for payment
and pays for less than 19,218,735 Shares  in the Offer (the number of Shares  so
accepted  for payment  and paid  for being referred  to herein  as the "Accepted
Share Number"),  then the  Exchange Ratio  shall  be equal  to a  fraction  (the
"Adjusted  Exchange Ratio"),  (A) the  numerator of  which is  equal to  (x) the
number of outstanding Shares immediately prior to the Effective Time  (excluding
Ineligible  Shares) (the "Final Outstanding Number") PLUS (y) the Accepted Share
Number MINUS (z)  the Offered Number  and (B)  the denominator of  which is  the
Final  Outstanding  Number and  (ii)  if the  Exchange  Ratio has  been adjusted
pursuant to the  immediately preceding  PROVISO, an amount  in cash  equal to  a
fraction,  (A) the  numerator of  which is  the product  of $30  (or any greater
amount per Share paid pursuant to the Offer) and the amount by which the Offered
Number exceeds the Accepted Share Number and (B) the denominator of which is the
Final Outstanding Number.
 
    THE BOARD OF DIRECTORS OF THE  COMPANY UNANIMOUSLY HAS DETERMINED THAT  EACH
OF  THE OFFER  AND THE  MERGER 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.
 
    For  purposes of the  Offer, Purchaser will  be deemed to  have accepted for
payment (and thereby purchased) Shares validly tendered and not withdrawn as, if
and when  Purchaser  gives  oral  or  written  notice  to  Citibank,  N.A.  (the
"Depositary")  of Purchaser's acceptance for payment  of such Shares pursuant to
the Offer. 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 of
the  purchase price therefor  with the Depositary,  which will act  as agent for
tendering stockholders for the purpose of receiving payments from Purchaser  and
transmitting  such  payments to  tendering stockholders  whose Shares  have been
accepted for payment. Payment  for Shares accepted for  payment pursuant to  the
Offer  may  be  delayed in  the  event of  proration  due to  the  difficulty of
determining the number of  shares validly tendered and  not withdrawn. Under  no
circumstances will interest on the purchase price for Shares be paid, regardless
of  any delay in making such payment.  In all cases, payment for Shares tendered
and accepted for payment pursuant  to the Offer will  be made only after  timely
receipt  by the Depositary  of (i) the certificates  evidencing such Shares (the
"Share Certificates") or timely  confirmation of a  book-entry transfer of  such
Shares  into  the  Depositary's  account  at  one  of  the  Book-Entry  Transfer
Facilities (as defined in Section  2 of the Offer  to Purchase) pursuant to  the
procedure  set forth in Section  3 of the Offer to  Purchase, (ii) the Letter of
Transmittal (or a facsimile thereof), properly completed and duly executed, with
any required signature guarantees, or an Agent's Message (as defined in  Section
2  of the Offer to Purchase) in connection with a book-entry transfer, and (iii)
any other documents required by the Letter of Transmittal.
 
    If more than 19,218,735 Shares are validly tendered prior to the  Expiration
Date  and  not withdrawn,  Purchaser will,  upon  the terms  and subject  to the
conditions of the Offer,  accept such Shares  for payment on  a PRO RATA  basis,
with  adjustments to avoid purchases of fractional Shares, based upon the number
of Shares validly tendered prior to the Expiration Date and not withdrawn.
 
    Purchaser expressly reserves the right, in its sole discretion (but  subject
to  the terms and conditions of the Merger Agreement), at any time and from time
to time, to extend for any reason the  period of time during which the Offer  is
open,    including   the    occurrence   of    any   condition    specified   in
<PAGE>
Section 14 of the Offer  to Purchase, by giving oral  or written notice of  such
extension  to the Depositary. Any such extension will be followed as promptly as
practicable by  public announcement  thereof, such  announcement to  be made  no
later  than 9:00 a.m.,  New York City time,  on the next  business day after the
previously scheduled expiration date  of the Offer.  During any such  extension,
all  Shares previously  tendered and  not withdrawn  will remain  subject to the
Offer, subject to the rights of a tendering stockholder to withdraw his Shares.
 
    Tenders of Shares  made pursuant to  the Offer are  irrevocable except  that
such  Shares may be withdrawn at any time prior to 12:00 Midnight, New York City
time, on Wednesday, March  27, 1996 (or  the latest time and  date at which  the
Offer,  if extended by Purchaser, shall expire) and, unless theretofore accepted
for payment by Purchaser  pursuant to the  Offer, may also  be withdrawn at  any
time  after  April  28, 1996.  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
page of the Offer to  Purchase. Any such notice  of withdrawal must specify  the
name of the person who tendered the Shares to be withdrawn, the number of Shares
to  be  withdrawn and  the  name of  the registered  holder  of such  Shares, if
different  from  that  of  the  person  who  tendered  such  Shares.  If   Share
Certificates  evidencing Shares to be withdrawn 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 the  signature(s) on the  notice of  withdrawal
must  be guaranteed by an  Eligible Institution (as defined  in Section 3 of the
Offer to Purchase), unless such Shares have been tendered for the account of  an
Eligible Institution. If Shares have been tendered pursuant to the procedure for
book-entry  transfer as  set forth in  Section 3  of the Offer  to Purchase, any
notice of withdrawal  must specify the  name and  number of the  account at  the
Book-Entry  Transfer  Facility to  be credited  with  the withdrawn  Shares. All
questions as to the  form and validity  (including the time  of receipt) of  any
notice  of withdrawal will  be determined by Purchaser,  in its sole discretion,
whose determination will be final and binding.
 
    The information required  to be  disclosed by Rule  14d-6(e)(1)(vii) of  the
General  Rules and  Regulations under  the Securities  Exchange Act  of 1934, as
amended, is contained  in the Offer  to Purchase and  is incorporated herein  by
reference.
 
    The  Company has provided Purchaser with  the Company's stockholder list and
security position listings for the purpose of disseminating the Offer to holders
of Shares. The Offer to Purchase and  the related Letter of Transmittal will  be
mailed  to  record  holders  of  Shares  whose  names  appear  on  the Company's
stockholder list and will  be furnished to  brokers, dealers, commercial  banks,
trust companies and similar persons whose names, or the names of whose nominees,
appear on the stockholder list or, if applicable, who are listed as participants
in  a clearing agency's security position  listing for subsequent transmittal to
beneficial owners of Shares.
 
    THE OFFER  TO  PURCHASE  AND  THE  RELATED  LETTER  OF  TRANSMITTAL  CONTAIN
IMPORTANT  INFORMATION WHICH  SHOULD BE  READ BEFORE  ANY DECISION  IS MADE WITH
RESPECT TO THE OFFER.
 
    Questions and requests for assistance may be directed to the Dealer  Manager
or the Information Agent at their respective addresses and telephone numbers set
forth  below.  Copies  of  the  Offer to  Purchase  and  the  related  Letter of
Transmittal and other  tender offer materials  may be obtained  from the  Dealer
Manager  or the Information  Agent at their addresses  and telephone numbers set
forth below and will  be furnished promptly at  Purchaser's expense. No fees  or
commissions  will be paid to  brokers, dealers or other  persons (other than the
Dealer Manager and Information Agent) for soliciting tenders of Shares  pursuant
to the Offer.
<PAGE>
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                            GEORGESON & COMPANY INC.
                               WALL STREET PLAZA
                            NEW YORK, NEW YORK 10005
                 BANKS AND BROKERS CALL COLLECT (212) 440-9800
                         CALL TOLL FREE: 1-800-223-2064
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                UNTERBERG HARRIS
                         275 Battery Street, 29th Floor
                        San Francisco, California 94111
                         CALL TOLL FREE: 1-800-622-8448
 
February 29, 1996

<PAGE>
                                                                  EXHIBIT (A)(8)
 
                           SILICON GRAPHICS AND CRAY
                            RESEARCH ANNOUNCE MERGER
                                   AGREEMENT
 
    UNION   OF  HIGH-END  AND   DEPLOYABLE  SUPERCOMPUTING  TECHNOLOGIES  ALLOWS
INCREASED FOCUS ON INNOVATION FOR HIGH-VOLUME MARKET OPPORTUNITIES
 
    NEW YORK, NY (Feb. 26, 1996)  -- Silicon Graphics, Inc. (NYSE:SGI) and  Cray
Research,  Inc. (NYSE:CYR) today announced that  they have entered into a merger
agreement, pursuant  to  which Silicon  Graphics  will acquire  the  outstanding
shares of Cray Research. The combined organizations will unite Silicon Graphics'
commitment  to  scalable, deployable  supercomputing  and 3D  visualization with
Cray's global leadership in large-scale supercomputing. The two companies have a
combined revenue run rate of nearly $4 billion.
 
    "The combination  of Silicon  Graphics  and Cray  Research will  create  the
world's  leading high-performance computing company,"  said Edward R. McCracken,
chairman and CEO of Silicon Graphics, Inc.  "The two companies share not only  a
passion  for innovation but  also a remarkably  similar architectural vision for
the future  of  high-performance computing.  The  acquisition of  Cray  will  be
instrumental  in expanding our scalable  architecture from high-volume, low-cost
desktops to teraflops, while retaining the unequaled brand equity established by
Cray as the worldwide gold standard for supercomputing solutions."
 
    Cray Research is a recognized leader for its technology, its people and  its
strong customer base. With the introduction of a string of landmark systems, the
company has created the category of supercomputing, representing the ultimate in
performance for the scientific and engineering community.
 
    Over  the past  18 months,  Cray Research  has structured  and refocused its
business on  the  most  demanding segments  of  the  high-performance  computing
market.  With  the  introduction of  powerful  new  products like  the  CRAY T90
parallel vector system and the CRAY  T3D and CRAY T3E highly scalable  products,
Cray Research returned to profitability in the quarter ending December 31, 1995,
and closed that quarter with an all-time, high year-end backlog of $437 million.
 
    Silicon  Graphics is continuing  to revolutionize high-performance computing
among systems priced at less than  $1 million by leveraging its open  CMOS-based
MIPS-Registered  Trademark- RISC-Registered Trademark- microprocessor technology
into its POWER CHALLENGE family  of shared memory multiprocessor  supercomputing
systems.
 
    "Cray's   performance  portfolio  and   reputation,  combined  with  Silicon
Graphics' leadership in  revolutionizing the  entry-level supercomputing  market
with  deployable solutions, 3D graphics and  desktop products, will position the
new organization as  the premier  supplier of information  technology," said  J.
Phillip  Samper, chairman  and CEO  of Cray  Research, Inc.  "The combination of
these two companies will provide not  only the world's most powerful  computers,
but also the most aggressive price/performance solutions across a broad spectrum
of customer requirements."
 
    The definitive merger agreement has been approved by the Boards of Directors
of Silicon Graphics and Cray Research. Under the terms of the agreement, Silicon
Graphics  will  make  a first  step  cash tender  offer  of $30.00  a  share for
19,218,735 shares, approximately 75 percent  of the outstanding common stock  of
Cray  Research. The tender offer is expected to commence this week. The offer is
subject to the  tender of at  least 51 percent  of Cray Research's  shares on  a
fully-diluted  basis in the tender offer  and to customary conditions, including
required government approvals.
 
    Following completion of the offer, the remaining shares of Cray Research are
expected to be converted at a one to one ratio into Silicon Graphics' stock.  If
fewer  than 19,218,735  of the  shares are  purchased in  the tender  offer, the
remaining Cray Research shareholders will receive a fraction of Silicon Graphics
stock and cash for each share so that the aggregate cash and stock consideration
paid
<PAGE>
in the merger is the same as if the offer had been fully subscribed. The  merger
will  be  accounted  for on  a  purchase  accounting basis.  The  transaction is
expected to be closed in Silicon Graphics' quarter ending in June 1996.
 
    The closing prices for  Silicon Graphics and Cray  Research common stock  on
Friday,  February 23, 1996, the last trading  day prior to the board meetings to
approve the transaction, were $27.50 and $25.25 respectively.
 
    This news release contains forward looking statements that involve risks and
uncertainties, including the satisfaction of  the conditions to the  transaction
and  the successful integration of Silicon Graphics and Cray Research, and other
risks detailed from time to  time in the SEC  reports filed by Silicon  Graphics
and  Cray Research, including the report on  Form 10-Q filed by Silicon Graphics
for the quarter ending December 31, 1995,  and the report on Form 10-Q filed  by
Cray  Research for the quarter ended September 30, 1995. Actual results may vary
materially.
 
    Cray Research provides the leading supercomputing tools and services to help
solve customers' most challenging problems. Cray Research, Inc. is headquartered
in Eagan, Minnesota.
 
    Silicon Graphics, Inc.  is a  leading manufacturer  of high-performance  and
commercial computing systems. The company delivers interactive three dimensional
graphics,   digital   media   and   symmetric   multiprocessing   supercomputing
technologies  to  technical  and  commercial  environments  through  direct  and
indirect  sales channels.  Its subsidiary,  MIPS Technologies,  Inc. designs and
licenses the  industry's  leading RISC  processor  technology for  the  computer
systems,  interactive consumer  and embedded control  markets. Silicon Graphics,
Inc. has offices worldwide and headquarters in Mountain View, California.
 
    Silicon Graphics and the Silicon Graphics logo are registered trademarks and
POWER CHALLENGE  is a  trademark of  Silicon Graphics,  Inc. MIPS  and RISC  are
registered  trademarks of MIPS Technologies, Inc. Cray is a registered trademark
of Cray Research, Inc.
 
                            ------------------------
 
Contact:
Jennifer Rothert Piercey (Silicon Graphics, Inc. - Media), 415-933-2019
Marilyn Lattin (Silicon Graphics, Inc. - Financial), 415-933-5070
Steve Conway (Cray Research, Inc. - Media), 612-683-7133
Brad Allen (Cray Research, Inc. - Financial), 612-683-7395

<PAGE>
                                                                     EXHIBIT (C)
 
                                                            FINAL EXECUTION COPY
 
                          AGREEMENT AND PLAN OF MERGER
 
                                  BY AND AMONG
 
                             SILICON GRAPHICS, INC.
 
                           C ACQUISITION CORPORATION
 
                                      AND
 
                              CRAY RESEARCH, INC.
 
                         DATED AS OF FEBRUARY 25, 1996
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                      PAGE
                                                                                                      -----
<S>                  <C>                                                                           <C>
 
                                                  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..................................................................           3
SECTION 2.02.        Effective Time..............................................................           4
SECTION 2.03.        Effect of the Merger........................................................           4
SECTION 2.04.        Certificate of Incorporation; By-Laws.......................................           4
SECTION 2.05.        Directors and Officers......................................................           4
SECTION 2.06.        Effect on Capital Stock.....................................................           4
SECTION 2.07.        Exchange of Certificates....................................................           5
SECTION 2.08.        Stock Transfer Books........................................................           7
SECTION 2.09.        Dissenting Shares...........................................................           7
SECTION 2.10.        No Further Ownership Rights in Company Common Stock.........................           7
SECTION 2.11.        Lost, Stolen or Destroyed Certificates......................................           7
SECTION 2.12.        Taking of Necessary Action; Further Action..................................           7
 
                                                 ARTICLE III
                                REPRESENTATIONS AND WARRANTIES OF THE COMPANY
 
SECTION 3.01.        Organization and Qualification; Subsidiaries................................           8
SECTION 3.02.        Certificate of Incorporation and By-Laws....................................           8
SECTION 3.03.        Capitalization..............................................................           8
SECTION 3.04.        Authority Relative to this Agreement........................................           9
SECTION 3.05.        No Conflict; Required Filings and Consents..................................          10
SECTION 3.06.        Compliance; Permits.........................................................          10
SECTION 3.07.        SEC Filings; Financial Statements...........................................          11
SECTION 3.08.        Absence of Certain Changes or Events........................................          12
SECTION 3.09.        No Undisclosed Liabilities..................................................          12
SECTION 3.10.        Absence of Litigation.......................................................          12
SECTION 3.11.        Employee Benefit Plans; Employment Agreements...............................          12
SECTION 3.12.        Labor Matters...............................................................          14
SECTION 3.13.        Registration Statement; Proxy Statement.....................................          14
SECTION 3.14.        Restrictions on Business Activities.........................................          14
SECTION 3.15.        Title to Property...........................................................          15
SECTION 3.16.        Taxes.......................................................................          15
SECTION 3.17.        Environmental Matters.......................................................          16
SECTION 3.18.        Brokers.....................................................................          17
SECTION 3.19.        Intellectual Property.......................................................          17
SECTION 3.20.        Vote Required...............................................................          18
</TABLE>
 
                                       ii
<PAGE>
<TABLE>
<CAPTION>
                                                                                                      PAGE
                                                                                                      -----
SECTION 3.21.        Opinion of Financial Advisor................................................          18
<S>                  <C>                                                                           <C>
SECTION 3.22.        Full Disclosure.............................................................          18
 
                                                  ARTICLE IV
                           REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB
 
SECTION 4.01.        Organization and Qualification..............................................          18
SECTION 4.02.        Authority Relative to This Agreement........................................          18
SECTION 4.03.        No Conflict; Required Filings and Consents..................................          19
SECTION 4.04.        Certificate of Incorporation and By-Laws....................................          19
SECTION 4.05.        Capitalization..............................................................          19
SECTION 4.06.        Compliance; Permits.........................................................          20
SECTION 4.07.        SEC Filings; Financial Statements...........................................          20
SECTION 4.08.        Absence of Certain Changes or Events........................................          21
SECTION 4.09.        Restrictions on Business Activities.........................................          21
SECTION 4.10.        Title to Property...........................................................          21
SECTION 4.11.        No Undisclosed Liabilities..................................................          21
SECTION 4.12.        Absence of Litigation.......................................................          21
SECTION 4.13.        Registration Statement; Proxy Statement/Prospectus..........................          21
SECTION 4.14.        Brokers.....................................................................          22
SECTION 4.15.        No Stockholder Vote.........................................................          22
SECTION 4.16.        Financing...................................................................          22
SECTION 4.17.        Full Disclosure.............................................................          22
 
                                                  ARTICLE V
                                    CONDUCT OF BUSINESS PENDING THE MERGER
 
SECTION 5.01.        Conduct of Business by the Company Pending the Merger.......................          22
SECTION 5.02.        No Solicitation.............................................................          24
SECTION 5.03.        Conduct of Business by Parent Pending the Merger............................          25
 
                                                  ARTICLE VI
                                            ADDITIONAL AGREEMENTS
 
SECTION 6.01.        Proxy Statement/Prospectus; Registration Statement..........................          25
SECTION 6.02.        Stockholders' Meeting.......................................................          26
SECTION 6.03.        Access to Information; Confidentiality......................................          26
SECTION 6.04.        Consents; Approvals.........................................................          26
SECTION 6.05.        Stock Options...............................................................          26
SECTION 6.06.        Company Stock Purchase Plan.................................................          27
SECTION 6.07.        Employment Matters..........................................................          27
SECTION 6.08.        Agreements of Affiliates....................................................          27
SECTION 6.09.        Indemnification.............................................................          27
SECTION 6.10.        Notification of Certain Matters.............................................          28
SECTION 6.11.        Further Action..............................................................          28
SECTION 6.12.        Public Announcements........................................................          28
SECTION 6.13.        Listing of Parent Common Shares.............................................          28
 
                                                 ARTICLE VII
                                           CONDITIONS TO THE MERGER
 
SECTION 7.01.        Conditions to Obligation of Each Party to Effect the Merger.................          29
</TABLE>
 
                                      iii
<PAGE>
<TABLE>
<CAPTION>
                                                                                                      PAGE
                                                                                                      -----
SECTION 7.02.        Additional Conditions to Obligations of Parent and Merger Sub...............          29
<S>                  <C>                                                                           <C>
SECTION 7.03.        Additional Conditions to Obligation of the Company..........................          30
 
                                                 ARTICLE VIII
                                                 TERMINATION
 
SECTION 8.01.        Termination.................................................................          30
SECTION 8.02.        Effect of Termination.......................................................          31
SECTION 8.03.        Fees and Expenses...........................................................          31
 
                                                  ARTICLE IX
                                              GENERAL PROVISIONS
 
SECTION 9.01.        Effectiveness of Representations, Warranties and Agreements.................          32
SECTION 9.02.        Notices.....................................................................          32
SECTION 9.03.        Certain Definitions.........................................................          33
SECTION 9.04.        Amendment...................................................................          34
SECTION 9.05.        Waiver......................................................................          34
SECTION 9.06.        Headings....................................................................          34
SECTION 9.07.        Severability................................................................          34
SECTION 9.08.        Entire Agreement............................................................          34
SECTION 9.09.        Assignment, Merger Sub......................................................          34
SECTION 9.10.        Parties in Interest.........................................................          34
SECTION 9.11.        Failure or Indulgence Not Waiver; Remedies Cumulative.......................          35
SECTION 9.12.        GOVERNING LAW...............................................................          35
SECTION 9.13.        Counterparts................................................................          35
SECTION 9.14.        WAIVER OF JURY TRIAL........................................................          35
</TABLE>
 
Annexes:
 
Annex A:  Conditions to the Offer
 
Annex B:  Certain Employee Matters
 
Annex C:  Form of Affiliate Agreement
 
                                       iv
<PAGE>
                          AGREEMENT AND PLAN OF MERGER
 
    AGREEMENT  AND  PLAN  OF  MERGER,  dated  as  of  February  25,  1996  (this
"AGREEMENT"), among SILICON GRAPHICS, INC., a Delaware corporation ("PARENT"), C
ACQUISITION CORPORATION, a Delaware corporation and a wholly owned subsidiary of
Parent ("MERGER  SUB"), and  CRAY RESEARCH,  INC., a  Delaware corporation  (the
"COMPANY"),
 
                              W I T N E S S E T H:
 
    WHEREAS,  the boards of directors of Parent, Merger Sub and the Company have
each determined  that  it  is advisable  and  in  the best  interests  of  their
respective stockholders for Parent to enter into a business combination with the
Company upon the terms and subject to the conditions set forth herein;
 
    WHEREAS,  in furtherance of such combination, it is proposed that Merger Sub
shall make a cash tender offer (the "OFFER") to acquire 19,218,735 of the issued
and outstanding  shares of  common stock,  par  value $1.00  per share,  of  the
Company ("COMPANY COMMON STOCK") and the associated Common Share Purchase Rights
(the  "RIGHTS") (shares  of Company  Common Stock  together with  the associated
Rights being hereinafter collectively  referred to as  "SHARES") for $30.00  per
Share  (such amount, or any greater amount per Share paid pursuant to the Offer,
being hereinafter referred to as  the "PER SHARE AMOUNT")  net to the seller  in
cash,  upon the terms  and subject to  the conditions of  this Agreement and the
Offer;
 
    WHEREAS, the board of  directors of the Company  (the "BOARD") has  approved
the  making of the  Offer and resolved  and agreed to  recommend that holders of
Shares tender their Shares pursuant to the Offer;
 
    WHEREAS, also in furtherance of such combination, the boards of directors of
Parent, Merger Sub and the Company have each approved the merger (the  "MERGER")
of  Merger  Sub with  and into  the  Company in  accordance with  the applicable
provisions of the Delaware  General Corporation Law  ("DELAWARE LAW"), and  upon
the terms and subject to the conditions set forth herein;
 
    WHEREAS,  pursuant to the Merger, each  outstanding Share shall be converted
into the  right to  receive  the Merger  Consideration  (as defined  in  Section
2.07(b)),  consisting of shares of common stock,  par value $0.001 per share, of
Parent ("PARENT  COMMON STOCK")  and, if  applicable, cash  upon the  terms  and
subject to the conditions set forth herein;
 
    NOW,  THEREFORE, in consideration of the  foregoing and the mutual covenants
and agreements  herein contained,  and  intending to  be legally  bound  hereby,
Parent, Merger Sub and the Company hereby agree as follows:
 
                                   ARTICLE I
                                   THE OFFER
 
    SECTION  1.01.  THE OFFER.  (a)  Provided that this Agreement shall not have
been terminated in accordance with Section 8.01 and none of the events set forth
in ANNEX A shall  have occurred or  be existing, Merger  Sub shall commence  the
Offer  as promptly as  reasonably practicable after  the date hereof,  but in no
event later than  five business days  after the initial  public announcement  of
Merger  Sub's intention to commence  the Offer. The obligation  of Merger Sub to
accept for payment and pay for Shares tendered pursuant to the Offer shall  only
be  subject to  (i) the  condition (the "MINIMUM  CONDITION") that  at least the
number of Shares that  when added to  the Shares already  owned by Parent  shall
constitute  a majority of the  then outstanding Shares on  a fully diluted basis
shall have been validly  tendered and not withdrawn  prior to the expiration  of
the  Offer and (ii) the satisfaction or waiver of the other conditions set forth
in ANNEX A. Merger Sub expressly reserves the right to waive any such  condition
(other  than the Minimum Condition), to increase  the price per Share payable in
the Offer and  to make  any other  changes in the  terms and  conditions of  the
Offer;  PROVIDED, HOWEVER, that unless Parent and Merger Sub shall have obtained
the prior written approval of  the Company, no change may  be made in the  Offer
which  (i) decreases the price per Share  payable in the Offer, (ii) changes the
form of consideration to be paid in the Offer, (iii) reduces the maximum  number
of
<PAGE>
Shares  to  be  purchased in  the  Offer,  (iv) changes  or  waives  the Minimum
Condition, or (v) modifies the conditions to  the Offer set forth in ANNEX A  or
imposes  conditions to the Offer in addition to  those set forth in ANNEX A. The
Per Share Amount shall,  subject to applicable withholding  of taxes, be net  to
the  seller in cash, upon the terms and  subject to the conditions of the Offer.
Subject to the terms and conditions of the Offer (including, without limitation,
the Minimum Condition), Merger Sub shall, and Parent shall cause Merger Sub  to,
accept  for payment and pay for, as  promptly as practicable after expiration of
the Offer, all  Shares validly  tendered and not  withdrawn; PROVIDED,  HOWEVER,
that  notwithstanding the foregoing  Parent may, in  its sole discretion, extend
the expiration date of  the Offer for up  to 15 business days,  and agrees on  a
one-time basis if all other conditions to the Offer have been met, to extend the
expiration  date for the Offer  for 10 business days if  on the relevant date of
expiration at least 45%  of the then outstanding  Shares (calculated on a  fully
diluted basis) have been tendered and not withdrawn from the Offer.
 
    (b)  As soon as practicable on the date of commencement of the Offer, Merger
Sub shall file with the Securities and Exchange Commission (the "SEC") a  Tender
Offer  Statement on Schedule 14D-1 (together with all amendments and supplements
thereto, the "SCHEDULE  14D-1") with respect  to the Offer.  The Schedule  14D-1
shall contain or shall incorporate by reference an offer to purchase (the "OFFER
TO  PURCHASE") and forms  of the related  letter of transmittal  and any related
summary advertisement (the Schedule 14D-1, the Offer to Purchase and such  other
documents,  together with all supplements and amendments thereto, being referred
to herein  collectively as  the  "OFFER DOCUMENTS").  The Offer  Documents  will
comply  in  all  material respects  with  the provisions  of  applicable federal
securities laws. Parent, Merger  Sub and the Company  agree to correct  promptly
any  information provided by  any of them  for use in  the Offer Documents which
shall have become false or misleading,  and Parent and Merger Sub further  agree
to  take all steps necessary  to cause the Schedule 14D-1  as so corrected to be
filed with  the  SEC  and the  other  Offer  Documents as  so  corrected  to  be
disseminated to holders of Shares, in each case as and to the extent required by
applicable federal securities laws. Parent and Merger Sub shall give the Company
and  its counsel the opportunity to review  and comment upon the Offer Documents
prior to their being filed with, or sent to, the SEC.
 
    SECTION 1.02.   COMPANY  ACTION.   (a) The  Company hereby  approves of  and
consents  to the Offer and  represents that the Board,  at a meeting duly called
and held on  February 25, 1996,  has (i) unanimously  approved and adopted  this
Agreement  and the transactions contemplated hereby, including the Offer and the
Merger  (the  "TRANSACTIONS"),  and   (ii)  unanimously  recommended  that   the
stockholders  of  the  Company  accept  the Offer  and  approve  and  adopt this
Agreement and the Transactions. The Company hereby consents to the inclusion  in
the  Offer  Documents  of  the  recommendation of  the  Board  described  in the
immediately preceding  sentence,  subject  to the  second  sentence  of  Section
5.02(a).
 
    (b)  As soon as  practicable on the  date of commencement  of the Offer, the
Company shall  file  with the  SEC  a Solicitation/Recommendation  Statement  on
Schedule  14D-9  (together  with  all amendments  and  supplements  thereto, the
"SCHEDULE 14D-9")  containing  the  recommendation of  the  Board  described  in
Section  1.02(a) and shall disseminate the Schedule 14D-9 to the extent required
by Rule 14d-9 promulgated under the Securities Exchange Act of 1934, as  amended
(the  "EXCHANGE ACT"),  and any  other applicable  federal securities  laws. The
Schedule 14D-9 will comply in all other material respects with the provisions of
applicable federal securities laws. The Company, Parent and Merger Sub agree  to
correct promptly any information provided by any of them for use in the Schedule
14D-9  which  shall have  become false  or misleading,  and the  Company further
agrees to take all steps necessary to  cause the Schedule 14D-9 as so  corrected
to  be filed with the SEC and disseminated to holders of Shares, in each case as
and to the extent required by applicable federal securities laws.
 
    (c) The  Company  shall promptly  furnish  Merger Sub  with  mailing  labels
containing  the names  and addresses  of all record  holders of  Shares and with
security position listings of  Shares held in stock  depositories, each as of  a
recent  date,  together with  all other  available  listings and  computer files
containing names, addresses and security position listings of record holders and
beneficial owners of  Shares. The  Company shall  furnish Merger  Sub with  such
additional information, including, without
 
                                       2
<PAGE>
limitation,  updated listings and computer files of stockholders, mailing labels
and security position listings, and such other assistance as Parent, Merger  Sub
or  their  agents  may  reasonably  request.  Subject  to  the  requirements  of
applicable law, and except  for such steps as  are necessary to disseminate  the
Offer Documents and any other documents necessary to consummate the Offer or the
Merger,  Parent and Merger  Sub shall, and  each of Parent  and Merger Sub shall
cause its affiliates, associates, agents and advisors to, (i) hold in confidence
the information contained  in such  labels, listings  and files,  (ii) use  such
information  only in connection with the Offer and the Merger, and (iii) if this
Agreement shall be terminated in accordance with Section 8.01, promptly  deliver
to  the Company all copies  (whether in human or  machine readable form) of such
information then in their possession.
 
    SECTION 1.03.  DIRECTORS.  (a) Promptly upon the purchase by Merger Sub of a
majority of the outstanding Shares pursuant to the Offer, and from time to  time
thereafter  as Shares are acquired by Merger  Sub, Merger Sub shall be entitled,
subject to compliance with Section 14(f) of the Exchange Act, to designate  such
number  of directors, rounded up to the next greatest whole number, on the Board
as will give  Merger Sub representation  on the  Board equal to  that number  of
directors which equals the product of the total number of directors on the Board
(giving  effect to the directors appointed  or elected pursuant to this sentence
and including current directors serving  as officers of the Company)  multiplied
by  the percentage  that the  aggregate number  of Shares  beneficially owned by
Merger Sub  or any  affiliate of  Merger  Sub (including  for purposes  of  this
Section  1.03 such Shares as are accepted for payment pursuant to the Offer, but
excluding Shares held  by the Company  or any  of its affiliates)  bears to  the
number  of Shares outstanding.  At such times,  the Company will  also cause (i)
each committee of the Board of Directors,  (ii) if requested by Merger Sub,  the
board  of directors of each of the Company's subsidiaries and (iii) if requested
by Merger Sub,  each committee of  such board to  include persons designated  by
Merger  Sub constituting the same percentage of  each such committee or board as
Merger Sub's designees  are of  the Board. The  Company shall,  upon request  by
Merger Sub, promptly increase the size of the Board or exercise its best efforts
to secure the resignations of such number of directors as is necessary to enable
Merger  Sub designees to  be elected to  the Board and  shall cause Merger Sub's
designees to be so elected.
 
    (b) Subject to applicable  law, the Company shall  promptly take all  action
necessary  pursuant  to  Section  14(f)  of  the  Exchange  Act  and  Rule 14f-1
promulgated thereunder in order  to fulfill its  obligations under this  Section
1.03  and shall  include in the  Schedule 14D-9 mailed  to stockholders promptly
after the commencement of the Offer  (or an amendment thereof or an  information
statement  pursuant to Rule  14f-1 if Merger Sub  has not theretofore designated
directors) such information  with respect to  the Company and  its officers  and
directors  as is required under Section 14(f) and Rule 14f-1 in order to fulfill
its obligations under this Section 1.03.  Parent and Merger Sub will supply  the
Company 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.  (a) Upon the terms and subject to the conditions
set forth  in  this Agreement,  and  in accordance  with  Delaware Law,  at  the
Effective  Time (as defined below) Merger Sub  shall be merged with and into the
Company. As a result of the  Merger, the separate corporate existence of  Merger
Sub  shall cease and the Company shall  continue as the surviving corporation of
the Merger (the "SURVIVING CORPORATION").
 
    (b) Unless this Agreement  shall have been  terminated and the  transactions
herein  contemplated  shall have  been abandoned  pursuant  to Section  8.01 and
subject to the  satisfaction or waiver  of the conditions  set forth in  Article
VII,  the consummation of the Merger will  take place as promptly as practicable
(and in any event within two business days) after satisfaction or waiver of  the
conditions  set forth in Article VII, at the offices of Shearman & Sterling, 555
California Street, Suite 2000, San  Francisco, California, unless another  date,
time or place is agreed to in writing by the parties hereto.
 
                                       3
<PAGE>
    SECTION  2.02.    EFFECTIVE TIME.    As  promptly as  practicable  after the
satisfaction or waiver of the conditions  set forth in Article VII, the  parties
hereto  shall cause the Merger  to be consummated by  filing this Agreement or a
certificate of merger or  certificate of ownership and  merger (in either  case,
the  "Certificate  of Merger")  with  the Secretary  of  State of  the  State of
Delaware, in  such form  as required  by, and  executed in  accordance with  the
relevant provisions of, Delaware Law (the date and time of such filing being the
"EFFECTIVE TIME").
 
    SECTION  2.03.  EFFECT OF THE MERGER.   At the Effective Time, the effect of
the Merger shall be as provided in this Agreement, the Certificate of Merger and
the applicable provisions of  Delaware Law. Without  limiting the generality  of
the  foregoing, and  subject thereto,  at the  Effective Time  all the property,
rights, privileges, powers and  franchises of the Company  and Merger Sub  shall
vest  in the Surviving Corporation, and all debts, liabilities and duties of the
Company and Merger  Sub shall become  the debts, liabilities  and duties of  the
Surviving Corporation.
 
    SECTION  2.04.  CERTIFICATE  OF INCORPORATION; BY-LAWS.   (a) CERTIFICATE OF
INCORPORATION. Unless  otherwise determined  by Parent  prior to  the  Effective
Time,  at the Effective Time the Certificate  of Incorporation of Merger Sub, as
in effect immediately prior to the  Effective Time, shall be the Certificate  of
Incorporation  of the Surviving Corporation until thereafter amended as provided
by Delaware Law and such  Certificate of Incorporation; PROVIDED, HOWEVER,  that
Article I of the Certificate of Incorporation of the Surviving Corporation shall
be  amended to  read as  follows: "FIRST:  The name  of the  corporation is Cray
Research, Inc."
 
    (b)  BY-LAWS.  The By-Laws of Merger Sub, as in effect immediately prior  to
the  Effective Time,  shall be  the By-Laws  of the  Surviving Corporation until
thereafter amended as provided by Delaware Law, the Certificate of Incorporation
of the Surviving Corporation and such By-Laws.
 
    SECTION 2.05.    DIRECTORS  AND  OFFICERS.   The  directors  of  Merger  Sub
immediately  prior to the Effective  Time shall be the  initial directors of the
Surviving Corporation, each to  hold office in accordance  with the Articles  of
Incorporation  and By-Laws of the Surviving Corporation, and the officers of the
Company immediately prior to the Effective Time shall be the initial officers of
the Surviving Corporation, in  each case until  their respective successors  are
duly elected or appointed and qualified.
 
    SECTION 2.06.  EFFECT ON CAPITAL STOCK.  At the Effective Time, by virtue of
the Merger and without any action on the part of Parent, Merger Sub, the Company
or the holders of any of the following securities:
 
    (a)   CANCELLATION.  Each Share held in the treasury of the Company and each
Share owned  by  Parent, Merger  Sub  or any  direct  or indirect  wholly  owned
subsidiary  of the  Company or  Parent immediately  prior to  the Effective Time
("INELIGIBLE SHARES") shall, by virtue of  the Merger and without any action  on
the part of the holder thereof, cease to be outstanding, be canceled and retired
without payment of any consideration therefor and cease to exist.
 
    (b)   CONVERSION OF SECURITIES.   Subject to Section 2.06(f), each remaining
outstanding Share (other  than Dissenting  Shares) shall be  converted into  the
right  to receive (i) 1.00 fully paid  and non-assessable share of Parent Common
Stock (the "EXCHANGE RATIO"); provided, however, that if Merger Sub accepts  for
payment  and pays for less than 19,218,735  (the "OFFERED NUMBER") Shares in the
Offer (the number of Shares so accepted for payment and paid for being  referred
to  herein as  the "ACCEPTED  SHARE NUMBER"), then  the Exchange  Ratio shall be
equal to a fraction (the "ADJUSTED EXCHANGE RATIO"), (A) the numerator of  which
is  equal  to (x)  the number  of  outstanding Shares  immediately prior  to the
Effective Time (excluding  Ineligible Shares) (the  "FINAL OUTSTANDING  NUMBER")
PLUS  (y) the  Accepted Share Number  MINUS (z)  the Offered Number  and (B) the
denominator of which is  the Final Outstanding Number  and (ii) if the  Exchange
Ratio has been adjusted pursuant to the immediately preceding PROVISO, an amount
in  cash equal to a fraction,  (A) the numerator of which  is the product of the
Per Share Amount and the amount by which the Offered Number exceeds the Accepted
Share Number and (B) the denominator of which is the Final Outstanding Number.
 
                                       4
<PAGE>
    (c)  ASSUMPTION OF STOCK OPTIONS AND STOCK PURCHASE RIGHTS.  All options  to
purchase  Company  Common  Stock  granted under  the  Cray  Research,  Inc. 1985
Incentive Stock Option and Nonstatutory Option Plan (the "1985 EMPLOYEE  PLAN"),
the  Cray Research, Inc.  1989 Employee Benefit Stock  Plan (the "EMPLOYEE STOCK
PLAN") and the  Cray Research,  Inc. 1989 Non-Employee  Directors' Stock  Option
Plan  (the "DIRECTORS' PLAN" and,  together with the 1985  Employee Plan and the
Employee Stock  Plan,  the  "STOCK  OPTION PLANS")  or  pursuant  to  any  other
arrangement  adopted by the  Board to provide options  to directors, officers or
employees of the Company (in any such case, an "OPTION") then outstanding  shall
be  assumed by Parent in accordance with  Section 6.05. Immediately prior to the
Effective Time, all  rights to  purchase Company Common  Stock then  outstanding
under the Company's Qualified Stock Purchase Investment Plan (the "COMPANY STOCK
PURCHASE  PLAN")  shall be  converted  into shares  of  Company Common  Stock in
accordance with Section 6.06.
 
    (d)  CAPITAL STOCK OF MERGER SUB.  Each share of common stock, no par value,
of Merger Sub  issued and outstanding  immediately prior to  the Effective  Time
shall  be converted into  and exchanged for  one validly issued,  fully paid and
nonassessable share of common stock, no par value, of the Surviving Corporation.
Each stock certificate  of Merger Sub  evidencing ownership of  any such  shares
shall  continue to  evidence ownership  of such shares  of capital  stock of the
Surviving Corporation.
 
    (e)  ADJUSTMENTS TO EXCHANGE RATIO.  The Exchange Ratio shall be adjusted to
reflect fully  the effect  of any  stock split,  reverse split,  stock  dividend
(including  any dividend or  distribution of securities  convertible into Parent
Common Stock or Company Common Stock), reorganization, recapitalization or other
like change with  respect to  Parent Common Stock  or Company  Common Stock  the
record  date  for which  shall  occur after  the date  hereof  and prior  to the
Effective Time.
 
    (f)  FRACTIONAL SHARES.  No fraction of a share of Parent Common Stock  will
be  issued, but in  lieu thereof each  holder of Company  Common Stock who would
otherwise be entitled to  a fraction of  a share of  Parent Common Stock  (after
aggregating  all fractional shares of Parent Common Stock to be received by such
holder) shall receive  from Parent  an amount of  cash (rounded  to the  nearest
whole  cent),  without interest,  equal  to the  product  of (i)  such fraction,
multiplied by (ii) the average of the closing price for trades of Parent  Common
Stock  as  of  each of  the  thirty  (30) consecutive  trading  days immediately
preceding the  Effective Time  as quoted  in the  Wall Street  Journal or  other
reliable  financial newspaper or publication. For  the purposes of the preceding
sentence, a "trading day" means a day on which trading generally takes place  on
the  New York Stock Exchange (the "NYSE")  and on which trading in Parent Common
Stock has occurred.
 
    (g)  CONVERTIBLE DEBENTURES.  The 6 1/8% Convertible Subordinated Debentures
due 2011 of the  Company (the "CONVERTIBLE DEBENTURES")  shall, pursuant to  the
terms  of  the Indenture  between the  Company  and Manufacturers  Hanover Trust
Company (the "TRUSTEE"), dated as of February 1, 1986 (the "INDENTURE"),  become
thereafter  convertible only into  that number of shares  of Parent Common Stock
and cash, if any, that the holder of any such Convertible Debentures would  have
received  if such holder  had converted such  Convertible Debentures immediately
prior to  the Effective  Time as  provided in  Section 15.06  of the  Indenture.
Parent  shall execute  and deliver  a supplemental  indenture (the "SUPPLEMENTAL
INDENTURE"),  which  shall  evidence  Parent's  assumption  of  the  Convertible
Debentures  and provide that the holder of each Convertible Debenture shall have
the right thereafter to convert  such Convertible Debenture as described  above,
in each case in accordance with the terms of the Indenture.
 
    SECTION  2.07.  EXCHANGE OF CERTIFICATES.   (a) EXCHANGE AGENT. Parent shall
deposit, or shall  cause to be  deposited, to or  for the account  of a bank  or
trust  company designated  by Parent  (the "EXCHANGE  AGENT"), in  trust for the
benefit of the holders of Company  Common Stock (other than Dissenting  Shares),
for  exchange in accordance with this  Section 2.07, through the Exchange Agent,
certificates evidencing the  Parent Common  Stock and, if  applicable, the  cash
portion  of  the  Merger Consideration,  issuable  pursuant to  Section  2.06 in
exchange for outstanding Shares.
 
    (b)   EXCHANGE PROCEDURES.   As  soon as  reasonably practicable  after  the
Effective  Time, Parent will instruct the Exchange  Agent to mail to each holder
of record of a certificate or certificates which
 
                                       5
<PAGE>
immediately prior to the Effective Time evidenced outstanding Shares (other than
Dissenting Shares) (the "CERTIFICATES") (i) a letter of transmittal (which shall
specify that delivery  shall be  effected, and  risk of  loss and  title to  the
Certificates  shall pass, only  upon proper delivery of  the Certificates to the
Exchange Agent and  shall be  in such  form and  have such  other provisions  as
Parent  may reasonably specify) and (ii) instructions to effect the surrender of
the Certificates in exchange  for the certificates  evidencing shares of  Parent
Common  Stock  and, in  lieu of  any  fractional shares  thereof, cash,  and, if
applicable, the cash  portion of  the Merger Consideration  payable pursuant  to
Section  2.06(b).  Upon  surrender  of a  Certificate  for  cancellation  to the
Exchange Agent together with such letter of transmittal, duly executed, and such
other customary documents as may be required pursuant to such instructions,  the
holder of such Certificate shall be entitled to receive in exchange therefor (A)
certificates evidencing that number of whole shares of Parent Common Stock which
such  holder has the right  to receive in accordance  with the Exchange Ratio in
respect of the Shares formerly evidenced by such Certificate, (B) the amount  of
cash,  if any, payable with respect to  such shares pursuant to Section 2.06(b),
(C) any  dividends or  other  distributions to  which  such holder  is  entitled
pursuant to Section 2.07(c), and (D) cash in lieu of fractional shares of Parent
Common  Stock to which such holder is  entitled pursuant to Section 2.06(f) (the
Parent Common Stock, cash, dividends and distributions described in clauses (A),
(B), (C)  and (D)  being,  collectively, the  "MERGER CONSIDERATION"),  and  the
Certificate  so  surrendered shall  forthwith  be canceled.  In  the event  of a
transfer of ownership of Shares which is not registered in the transfer  records
of  the Company as of the Effective Time, the Merger Consideration may be issued
and paid in accordance with this Article  II to a transferee if the  Certificate
evidencing  such Shares is  presented to the Exchange  Agent, accompanied by all
documents required to evidence and effect such transfer pursuant to this Section
2.07(b) and by evidence that any applicable stock transfer taxes have been paid.
Until so surrendered, each outstanding Certificate that, prior to the  Effective
Time,  represented shares of  the Company Common  Stock will be  deemed from and
after the Effective Time, for all corporate purposes, other than the payment  of
dividends,  to evidence  the ownership  of the number  of full  shares of Parent
Common Stock into which such shares of the Company Common Stock shall have  been
so  converted, the right to receive the cash portion of the Merger Consideration
payable with  respect thereto  pursuant  to Section  2.06(b)  and the  right  to
receive  an amount in cash  in lieu of the issuance  of any fractional shares in
accordance with Section 2.06(f).
 
    (c)  DISTRIBUTIONS  WITH RESPECT  TO UNEXCHANGED  SHARES.   No dividends  or
other  distributions declared or  made after the Effective  Time with respect to
Parent Common Stock with a record date after the Effective Time shall be paid to
the holder of any unsurrendered Certificate until the holder of such Certificate
shall surrender such Certificate. Subject to applicable law, following surrender
of any  such Certificate,  there  shall be  paid to  the  record holder  of  the
certificates representing whole shares of Parent Common Stock issued in exchange
therefor,  without  interest,  at the  time  of  such surrender,  the  amount of
dividends or other  distributions with a  record date after  the Effective  Time
theretofore paid with respect to such whole shares of Parent Common Stock.
 
    (d)  TRANSFERS OF OWNERSHIP.  If any certificate for shares of Parent Common
Stock  is  to be  issued in  a name  other  than that  in which  the Certificate
surrendered in exchange therefor  is registered, it will  be a condition of  the
issuance  thereof that the Certificate so  surrendered will be properly endorsed
and otherwise in proper  form for transfer and  that the person requesting  such
exchange will have paid to Parent or any person designated by it any transfer or
other  taxes required by reason  of the issuance of  a certificate for shares of
Parent Common Stock in any name other than that of the registered holder of  the
certificate  surrendered, or  established to the  satisfaction of  Parent or any
agent designated by it that such tax has been paid or is not payable.
 
    (e)  NO  LIABILITY.  Neither  Parent, Merger  Sub nor the  Company shall  be
liable  to any holder of  Company Common Stock for  any Merger Consideration (or
dividends or distributions with respect thereto) delivered to a public  official
pursuant to any applicable abandoned property, escheat or similar law.
 
                                       6
<PAGE>
    (f)  WITHHOLDING RIGHTS.  Parent, the Surviving Corporation and the Exchange
Agent  shall be  entitled to deduct  and withhold from  the Merger Consideration
otherwise payable pursuant  to this Agreement  to any holder  of Company  Common
Stock such amounts as Parent, the Surviving Corporation or the Exchange 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 "CODE") or any provision of
state, local, provincial or foreign tax law.  To the extent that amounts are  so
withheld,  such  withheld amounts  shall  be treated  for  all purposes  of this
Agreement as having been paid  to the holder of the  Shares in respect of  which
such deduction and withholding was made.
 
    SECTION  2.08.   STOCK TRANSFER  BOOKS.   At the  Effective Time,  the stock
transfer books of the  Company shall be  closed, and there  shall be no  further
registration  of transfers of the Company Common Stock thereafter on the records
of the Company.
 
    SECTION 2.09.  DISSENTING SHARES.  (a) Notwithstanding any provision of this
Agreement to the contrary, Shares that are outstanding immediately prior to  the
Effective  Time and which are  held by stockholders who  shall have not voted in
favor of the Merger or consented thereto in writing and who shall have available
to them  and who  shall have  demanded properly  in writing  appraisal for  such
Shares  in  accordance  with  Section 262  of  Delaware  Law  (collectively, the
"DISSENTING SHARES')  shall not  be converted  into or  represent the  right  to
receive the Merger Consideration. Such stockholders shall be entitled to receive
payment  of the appraised value  of such Shares held  by them in accordance with
the provisions of such  Section 262, except that  all Dissenting Shares held  by
stockholders  who shall  have failed  to perfect  or who  effectively shall have
withdrawn or lost their  rights to appraisal of  such Shares under such  Section
262  shall thereupon be  deemed to have  been converted into  and to have become
exchangeable for, as  of the  Effective Time, the  right to  receive the  Merger
Consideration,  without  any interest  thereon,  upon surrender,  in  the manner
provided in  Section 2.07,  of  the certificate  or certificates  that  formerly
evidenced such Shares.
 
    (b)  The Company  shall give  Parent (i)  prompt notice  of any  demands for
appraisal received by the  Company, withdrawals of such  demands, and any  other
instruments served pursuant to Delaware Law and received by the Company and (ii)
the  opportunity  to direct  all negotiations  and  proceedings with  respect to
demands for appraisal under Delaware Law. The Company shall not, except with the
prior written consent of  Parent, make any payment  with respect to any  demands
for appraisal or offer to settle or settle any such demands.
 
    SECTION  2.10.  NO  FURTHER OWNERSHIP RIGHTS  IN COMPANY COMMON  STOCK.  The
Merger Consideration  delivered upon  the surrender  for exchange  of Shares  in
accordance  with the terms  hereof shall be  deemed to have  been issued in full
satisfaction of all  rights pertaining  to such Shares,  and there  shall be  no
further registration of transfers on the records of the Surviving Corporation of
Shares which were outstanding immediately prior to the Effective Time. If, after
the  Effective Time, Certificates are presented to the Surviving Corporation for
any reason, they shall be canceled and exchanged as provided in this Article II.
 
    SECTION 2.11.   LOST, STOLEN OR  DESTROYED CERTIFICATES.   In the event  any
Certificates shall have been lost, stolen or destroyed, the Exchange Agent shall
issue  in exchange  for such  lost, stolen  or destroyed  Certificates, upon the
making of  an  affidavit  of  that  fact by  the  holder  thereof,  such  Merger
Consideration  as may be  required pursuant to  Section 2.06; provided, however,
that Parent may, in its discretion and as a condition precedent to the  issuance
and  delivery  thereof, require  the  owner of  such  lost, stolen  or destroyed
Certificates to  deliver a  bond in  such sum  as it  may reasonably  direct  as
indemnity  against any  claim that  may be made  against Parent  or the Exchange
Agent with respect  to the  Certificates alleged to  have been  lost, stolen  or
destroyed.
 
    SECTION  2.12.  TAKING OF NECESSARY ACTION; FURTHER ACTION.  Each of Parent,
Merger Sub  and  the Company  in  good faith  will  take all  such  commercially
reasonable  and lawful  action as  may be necessary  or appropriate  in order to
effectuate the Merger in accordance with this Agreement as promptly as possible.
If, at any time after the Effective  Time, any such further action is  necessary
or  desirable  to carry  out  the purposes  of this  Agreement  and to  vest the
Surviving Corporation with full
 
                                       7
<PAGE>
right, title and possession to all assets, property, rights, privileges,  powers
and  franchises of the Company and Merger Sub, the officers and directors of the
Company and Merger  Sub are  fully authorized in  the name  of their  respective
corporations  or otherwise to take, and will take, all such lawful and necessary
action.
 
                                  ARTICLE III
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY
 
    The Company hereby represents and warrants to Parent and Merger Sub that:
 
    SECTION 3.01.  ORGANIZATION  AND QUALIFICATION; SUBSIDIARIES.   Each of  the
Company  and its subsidiaries is a  corporation duly organized, validly existing
and in good standing under the laws of the jurisdiction of its incorporation and
has the requisite  corporate power  and authority and  is in  possession of  all
franchises,  grants,  authorizations,  licenses,  permits,  easements, consents,
certificates, approvals and  orders ("APPROVALS")  necessary to  own, lease  and
operate  the properties it purports to own, operate or lease and to carry on its
business as  it is  now  being conducted,  except where  the  failure to  be  so
organized,  existing and in good  standing or to have  such power, authority and
Approvals would not have a Material Adverse Effect. Each of the Company and  its
subsidiaries  is  duly qualified  or  licensed as  a  foreign corporation  to do
business, and is in good standing,  in each jurisdiction where the character  of
its  properties owned, leased or operated by  it or the nature of its activities
makes such qualification or licensing necessary, except for such failures to  be
so  duly  qualified or  licensed  and in  good standing  that  would not  have a
Material Adverse  Effect. A  true and  complete  list of  all of  the  Company's
subsidiaries, together with the jurisdiction of incorporation of each subsidiary
and  the percentage of each subsidiary's  outstanding capital stock owned by the
Company or  another subsidiary,  is set  forth in  Section 3.01  of the  written
disclosure  schedule previously delivered by the Company to Parent (the "COMPANY
DISCLOSURE SCHEDULE").  Except as  set  forth in  Section  3.01 of  the  Company
Disclosure  Schedule, the Company does not directly or indirectly own any equity
or similar interest  in, or  any interest  convertible into  or exchangeable  or
exercisable   for,  any  equity   or  similar  interest   in,  any  corporation,
partnership, joint venture or other business association or entity.
 
    SECTION 3.02.  CERTIFICATE  OF INCORPORATION AND BY-LAWS.   The Company  has
heretofore furnished to Parent a complete and correct copy of its Certificate of
Incorporation  and By-Laws, as  amended to date.  Within 14 days  after the date
hereof, the  Company will  provide Parent  a complete  and correct  copy of  the
equivalent   organizational  documents   of  each  of   its  subsidiaries.  Such
Certificate of Incorporation, By-Laws and equivalent organizational documents of
each of its subsidiaries  are in full  force and effect. The  Company is not  in
violation  of  any of  the  provisions of  its  Certificate of  Incorporation or
By-Laws. None  of the  Company's subsidiaries  is  in violation  of any  of  the
provisions  of  its  Certificate  of  Incorporation  or  By-Laws  or  equivalent
organizational documents, except  for any such  violations as would  not have  a
Material Adverse Effect.
 
    SECTION  3.03.  CAPITALIZATION.  The authorized capital stock of the Company
consists of 100,000,000 Shares. As of  February 22, 1996, (i) 25,624,980  Shares
were  issued and outstanding,  all of which  are validly issued,  fully paid and
nonassessable, (ii) 5,886,041 Shares were held  in the treasury of the  Company,
(iii) 5,530,573 Shares were reserved for future issuance pursuant to outstanding
Options  granted  under  the Employee  Stock  Plan, (iv)  1,622,638  Shares were
reserved for future issuance pursuant to future option grants under the Employee
Stock Plan, (v)  90,000 Shares  were reserved  for future  issuance pursuant  to
outstanding  Options granted under the Directors' Plan, (vi) 107,500 Shares were
reserved for  future  issuance  pursuant  to  future  option  grants  under  the
Directors' Plan, (vii) 663,304 Shares were reserved for future issuance pursuant
to  option grants under the Company Stock Purchase Plan, (viii) 1,051,282 Shares
were reserved for future issuance with respect to the Convertible Debentures and
(ix) 500,000  Shares  were  reserved  for issuance  pursuant  to  the  Company's
Performance  Incentive  Plan.  No  change in  such  capitalization  has occurred
between February 22, 1996 and the  date hereof other than any change  associated
with the
 
                                       8
<PAGE>
exercise  of vested Options or purchases  under the Company Stock Purchase Plan.
Except for the Convertible Debentures and as  set forth in this Section 3.03  or
Section 3.11 hereof or in Section 3.03 or Section 3.11 of the Company Disclosure
Schedule,   there  are  no  options,   warrants  or  other  rights,  agreements,
arrangements or commitments of any character relating to the issued or  unissued
capital  stock  of the  Company or  any  of its  subsidiaries or  obligating the
Company or any of its subsidiaries to issue or sell any shares of capital  stock
of,  or other equity interests  in, the Company or  any of its subsidiaries. All
Shares subject  to  issuance  as  aforesaid, upon  issuance  on  the  terms  and
conditions  specified in  the instruments pursuant  to which  they are issuable,
shall be duly authorized, validly  issued, fully paid and nonassessable.  Except
as is set forth in Section 3.03 of the Company Disclosure Schedule, there are no
obligations,  contingent or otherwise, of the Company or any of its subsidiaries
to repurchase, redeem or otherwise acquire  any shares of Company capital  stock
or  the capital  stock of  any subsidiary  or to  provide funds  to or  make any
investment (in the  form of a  loan, capital contribution  or otherwise) in  any
such subsidiary or any other entity other than guarantees of bank obligations of
subsidiaries  entered  into  in the  ordinary  course  of business.  All  of the
outstanding shares of capital  stock of each of  the Company's subsidiaries  are
duly  authorized, validly issued, fully paid  and nonassessable, and, other than
directors' or similar DE  MINIMIS statutory qualifying  shares, all such  shares
are  owned by the Company  or another subsidiary free  and clear of all security
interests, liens,  claims, pledges,  agreements,  limitations in  the  Company's
voting rights, charges or other encumbrances of any nature whatsoever.
 
    SECTION  3.04.  AUTHORITY RELATIVE  TO THIS AGREEMENT.   (a) The Company has
all necessary  corporate  power  and  authority  to  execute  and  deliver  this
Agreement  and  to  perform  its obligations  hereunder  and  to  consummate the
transactions contemplated hereby. The execution  and delivery of this  Agreement
by  the  Company  and  the  consummation  by  the  Company  of  the transactions
contemplated hereby  have been  duly  and validly  authorized by  all  necessary
corporate  action and no other corporate proceedings  on the part of the Company
are necessary to authorize this Agreement  or to consummate the transactions  so
contemplated  (other than the approval and adoption of the Merger by the holders
of at least a  majority of the  outstanding shares of  the Company Common  Stock
entitled  to vote in accordance with  Delaware Law and the Company's Certificate
of Incorporation  and  By-Laws). The  Board  of  Directors of  the  Company  has
determined  that  it is  advisable and  in  the best  interest of  the Company's
stockholders for the Company  to enter into a  business combination with  Parent
upon  the terms and subject to the  conditions of this Agreement. This Agreement
has been duly and  validly executed and delivered  by the Company and,  assuming
the  due  authorization, execution  and delivery  by Parent  and Merger  Sub, as
applicable, constitutes the legal, valid and binding obligation of the Company.
 
    (b) The Board has taken all necessary action to amend the Rights  Agreement,
dated  as of May 15, 1989, between the Company and Norwest Bank Minnesota, N.A.,
as Rights Agent (the "RIGHTS AGREEMENT"), so  that (A) none of the execution  or
delivery  of this Agreement or the making of the Offer will cause (i) the Rights
(as defined in  the Rights  Agreement) to  become exercisable  under the  Rights
Agreement,  (ii) Parent or Merger Sub or any of their affiliates to be deemed an
"Acquiring Person" (as  defined in the  Rights Agreement) or  (iii) the  "Shares
Acquisition  Date" (as defined in  the Rights Agreement) to  occur upon any such
event, (B) none of the  acceptance for payment or  payment for Shares by  Merger
Sub  pursuant to the Offer or the consummation  of the Merger will cause (i) the
Rights to become exercisable under the  Rights Agreement, (ii) Parent or  Merger
Sub  or any of  their affiliates to be  deemed an Acquiring  Person or (iii) the
Shares Acquisition Date to  occur upon any such  event, and (C) the  "Expiration
Date" (as defined in the Rights Agreement) shall occur no later than immediately
prior  to the purchase of Shares pursuant  to the Offer. The "Distribution Date"
(as defined in the Rights Agreement) has not occurred.
 
    (c) As of the date hereof and pursuant to Section 203(a)(1) of the  Delaware
Law,  the restrictions contained in Section 203  of the Delaware Law are, and at
all times  on  or  prior to  the  Effective  Time such  restrictions  shall  be,
inapplicable  to the Offer, the Merger and the transactions contemplated by this
Agreement. The Company has heretofore delivered to Parent a complete and correct
copy of the
 
                                       9
<PAGE>
resolutions of the Board of Directors of the Company to the effect that pursuant
to Section 203(a)(1) of the Delaware Law, the restrictions contained in  Section
203  of the Delaware Law are and shall  be inapplicable to the Offer, the Merger
and the transactions contemplated by this Agreement.
 
    (d) The Board  has taken all  necessary action to  amend the Cray  Research,
Inc.  Executives  Severance  Compensation  Plan,  the  Cray  Research,  Inc. Key
Management/Professional Severance Compensation Plan and the Cray Research,  Inc.
General  Employee  Severance  Compensation  Plan  (collectively,  the "PARACHUTE
PLANS") so  that  none  of  the  execution,  delivery  or  performance  of  this
Agreement,  including,  without limitation,  consummation of  the Offer  and the
Merger shall constitute a "Change of Control" for the purposes of such Parachute
Plans.
 
    SECTION 3.05.   NO CONFLICT;  REQUIRED FILINGS  AND CONSENTS.   (a)  Section
3.05(a) of the Company Disclosure Schedule includes a list as of the date hereof
(i)  all contracts of the  Company and its subsidiaries  the loss of which would
have a Material Adverse  Effect on the Company,  (ii) all contracts pursuant  to
which  the Company expects or is scheduled to receive (assuming full performance
by the Company  pursuant to  the terms thereof)  revenue of  $5,000,000 or  more
during  the eighteen (18) month period following  the date hereof, and (iii) all
agreements which, as of the date hereof, will be required to be filed, with  the
Securities  Exchange Commission (the "SEC") pursuant  to the requirements of the
Securities Exchange Act  of 1934,  as amended,  and the  SEC's rules  thereunder
(collectively,  the "EXCHANGE ACT") as "material contracts" ((i), (ii) and (iii)
being,  collectively,  the  "MATERIAL  CONTRACTS")   of  the  Company  and   its
subsidiaries).
 
    (b)  Except  as  set forth  in  Section  3.05(b) of  the  Company Disclosure
Schedule, the execution and  delivery of this Agreement  by the Company do  not,
and the performance of this Agreement by the Company will not, (i) conflict with
or   violate  the  Certificate   of  Incorporation  or   By-Laws  or  equivalent
organizational documents  of  the  Company  or any  of  its  subsidiaries,  (ii)
conflict  with or violate  any law, rule, regulation,  order, judgment or decree
applicable to the Company or any of its  subsidiaries or by which its or any  of
their  respective properties is bound or affected, or (iii) result in any breach
of or constitute a  default (or an event  that with notice or  lapse of time  or
both   would  become  a  default),  or  impair  the  Company's  or  any  of  its
subsidiaries' rights  or alter  the rights  or obligations  of any  third  party
under,  or give to others any  rights of termination, amendment, acceleration or
cancellation of, any Material Contract, or result  in the creation of a lien  or
encumbrance  on any  of the properties  or assets of  the Company or  any of its
subsidiaries  pursuant  to,  any  note,  bond,  mortgage,  indenture,  contract,
agreement,  lease, license, permit, franchise  or other instrument or obligation
to which the  Company or  any of its  subsidiaries is  a party or  by which  the
Company  or any of its subsidiaries or its or any of their respective properties
is bound or affected.
 
    (c) The execution and  delivery of this Agreement  by the Company does  not,
and  the performance  of this  Agreement by  the Company  will not,  require any
consent, approval, authorization or  permit of, or  filing with or  notification
to,  any governmental or  regulatory authority, domestic  or foreign, except (i)
for applicable requirements, if any, of  the Securities Act of 1933, as  amended
(the  "SECURITIES  ACT"), the  Exchange Act,  state  securities laws  ("BLUE SKY
LAWS"),  the  pre-merger  notification  requirements  of  the  Hart-Scott-Rodino
Antitrust  Improvements Act of 1976, as  amended (the "HSR ACT"), any non-United
States competition, antitrust and investment laws and the filing and recordation
of appropriate merger or  other documents as required  by Delaware Law and  (ii)
where the failure to obtain such consents, approvals, authorizations or permits,
or   to  make  such  filings  or  notifications,  would  not  prevent  or  delay
consummation of  the Merger,  or otherwise  prevent or  delay the  Company  from
performing  its obligations under this Agreement,  or would not otherwise have a
Material Adverse Effect.
 
    SECTION 3.06.   COMPLIANCE; PERMITS.   (a)  Except as  disclosed in  Section
3.06(a)  of the Company Disclosure Schedule, neither  the Company nor any of its
subsidiaries is in conflict with,  or in default or  violation of, (i) any  law,
rule,  regulation, order, judgment or decree applicable to the Company or any of
its subsidiaries or by which its or any of their respective properties is  bound
or  affected or (ii)  any note, bond,  mortgage, indenture, contract, agreement,
lease, license, permit,
 
                                       10
<PAGE>
franchise or other instrument or obligation to  which the Company or any of  its
subsidiaries  is a party or  by which the Company or  any of its subsidiaries or
its or any  of their respective  properties is bound  or affected, except  where
such conflicts, defaults and violations would not have a Material Adverse Effect
on the Company.
 
    (b)  The Company and its subsidiaries hold all permits, licenses, easements,
variances,  exemptions,  consents,  certificates,  orders  and  approvals   from
governmental  authorities which are material to the operation of the business of
the Company and its  subsidiaries taken as a  whole (collectively, the  "COMPANY
PERMITS").  The Company and its subsidiaries are in compliance with the terms of
the Company Permits,  except where the  failure to  so comply would  not have  a
Material Adverse Effect.
 
    SECTION 3.07.  SEC FILINGS; FINANCIAL STATEMENTS.  (a) The Company has filed
all  forms,  reports and  documents  required to  be  filed with  the  SEC since
December 31, 1993 and has made available to Parent (i) its Quarterly Reports  on
Form  10-Q for the periods  ended June 30 and  September 30, 1995, respectively,
(ii) all proxy  statements relating  to the Company's  meetings of  stockholders
(whether  annual  or special)  held  since December  31,  1993, (iii)  all other
reports or registration statements filed by the Company with the SEC (other than
Reports on Form  10-Q, Reports  on Forms 3,  4 or  5 and Schedule  13G filed  on
behalf  of affiliates  of the  Company) since  December 31,  1993, and  (iv) all
amendments and supplements to all such reports and registration statements filed
by the  Company with  the SEC  (collectively, the  "COMPANY SEC  REPORTS").  The
Company SEC Reports (i) were prepared in accordance with the requirements of the
Securities  Act or the Exchange Act, as the case may be, and (ii) did not at the
time they were filed (or if amended or superseded by a filing prior to the  date
of this Agreement, then on the date of such 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
Company's subsidiaries is required to file any forms, reports or other documents
with the SEC.
 
    (b) Each of the consolidated financial statements (including, in each  case,
any related notes thereto) contained in the Company SEC Reports and contained in
Section  3.09 of the Company Disclosure Schedule was prepared in accordance with
United States Generally  Accepted Accounting  Principles ("GAAP")  applied on  a
consistent  basis throughout  the periods involved  (except as  may be indicated
therein or in  the notes  thereto) and  each fairly  presented the  consolidated
financial  position of  the Company  and its  subsidiaries as  at the respective
dates thereof and the consolidated results of its operations and cash flows  for
the  periods indicated, except  that the unaudited  interim financial statements
were or are subject to normal and recurring year-end adjustments which were  not
or are not expected to be material in amount.
 
    (c)  The Company has  heretofore furnished to Parent  a complete and correct
copy of any amendments or modifications, which have not yet been filed with  the
SEC  but  which are  required to  be  filed, to  agreements, documents  or other
instruments which previously had been filed by the Company with the SEC pursuant
to the Securities Act or the Exchange Act.
 
                                       11
<PAGE>
    SECTION 3.08.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as set forth in
Section  3.08 of  the Company Disclosure  Schedule and the  Company SEC Reports,
since December 31, 1995, the Company has conducted its business in the  ordinary
course and there has not occurred: (i) any amendments or changes in the Articles
of  Incorporation or Bylaws of  the Company; (ii) any  damage to, destruction or
loss of any assets of the Company (whether or not covered by insurance) that had
a Material Adverse  Effect; (iii) any  change by the  Company in its  accounting
methods,  principles or practices; (iv) any revaluation by the Company of any of
its assets, including, without limitation, writing down the value of capitalized
software or inventory or writing off notes or accounts receivable other than  in
the  ordinary course of business; (v) any  other action or event that would have
required the consent of Parent pursuant to Section 5.01 had such action or event
occurred after the date of this Agreement; or (vi) any sale of a material amount
of assets of  the Company,  except for  the sale  of inventory  in the  ordinary
course of business.
 
    SECTION  3.09.   NO  UNDISCLOSED  LIABILITIES.   Except  as is  disclosed in
Section 3.09 of the Company Disclosure Schedule, neither the Company nor any  of
its   subsidiaries  has  any  liabilities   (absolute,  accrued,  contingent  or
otherwise) which are, in the aggregate, material to the business, operations  or
financial condition of the Company and its subsidiaries taken as a whole, except
liabilities   (a)  adequately  provided  for  in  the  Company's  balance  sheet
(including any related  notes thereto) for  the fiscal year  ended December  31,
1995  included in  Section 3.09  of the  Company Disclosure  Schedule (the "1995
BALANCE SHEET"),  (b)  incurred in  the  ordinary  course of  business  and  not
required  under GAAP to be reflected on  the 1995 Balance Sheet, or (c) incurred
since December 31, 1995 in the  ordinary course of business and consistent  with
past practice, and liabilities incurred in connection with this Agreement.
 
    SECTION  3.10.  ABSENCE  OF LITIGATION.  Except  for routine litigation that
individually and in the aggregate if  determined adversely to the Company  would
not  result in the Company paying damages net of insurance in excess of $250,000
and except as is set forth in Section 3.10 of the Company Disclosure Schedule or
in the Company SEC Reports filed prior to the date of this Agreement, there  are
no  claims, actions,  suits, proceedings  or investigations  pending or,  to the
knowledge of  the  Company,  threatened  against  the  Company  or  any  of  its
subsidiaries,  or  any  properties  or  rights of  the  Company  or  any  of its
subsidiaries, before any  court, arbitrator or  administrative, governmental  or
regulatory authority or body, domestic or foreign.
 
    SECTION  3.11.  EMPLOYEE BENEFIT PLANS;  EMPLOYMENT AGREEMENTS.  (a) Section
3.11(a) of the Company Disclosure Schedule lists all employee benefit plans  (as
defined  in Section 3(3) of the Employee Retirement Income Security Act of 1974,
as amended ("ERISA")), all other bonus, stock option, stock purchase, incentive,
deferred compensation, supplemental  retirement, severance  or termination  pay,
medical  or life insurance,  supplemental unemployment benefits, profit-sharing,
pension or  retirement  plans,  agreements or  arrangements  and  other  similar
material  fringe or  employee benefit plans,  programs or  arrangements, and any
current or former employment or executive compensation or severance  agreements,
regardless  of  whether ERISA  is  applicable thereto,  for  the benefit  of, or
relating to, any  employee or former  employee of  the Company or  any trade  or
business  (whether or not incorporated) which is  a member of a controlled group
including the Company  or which  is under common  control with  the Company  (an
"ERISA  AFFILIATE") within the meaning of Section 414 of the Code (the "EMPLOYEE
PLANS"), and a copy of each such  written Employee Plan has been made  available
to Parent (other than Foreign Employee Plans (as defined herein), which shall be
made  available  to  the  Parent  prior to  the  Effective  Time  to  the extent
practicable).
 
    (b) Except  as  set forth  in  Section  3.11(b) of  the  Company  Disclosure
Schedule, and except as any inaccuracy in the following statements, individually
or  in the aggregate, would  not have a Material  Adverse Effect on the Company,
(i) none of the Employee Plans provides retiree medical or other retiree welfare
benefits to any person and none of the Employee Plans is a "multiemployer  plan"
as  such term is defined in Section 3(37)  of ERISA; (ii) all Employee Plans are
in compliance in all material respects  with the requirements prescribed by  any
and  all  applicable statutes,  orders,  or governmental  rules  and regulations
currently   in   effect   with   respect   thereto,   and   the   Company    and
 
                                       12
<PAGE>
each  of its subsidiaries have performed all material obligations required to be
performed by them under,  are not in  any material respect  in default under  or
violation  of, and have  no knowledge of  any default or  violation by any other
party to,  any of  the Employee  Plans;  (iii) each  Employee Plan  intended  to
qualify  under  Section  401(a)  of  the Code  is  the  subject  of  a favorable
determination letter  from  the  IRS,  and  nothing  has  occurred  which  could
reasonably  be  expected to  impair such  determination; (iv)  all contributions
required to be made to any Employee Plan under the terms of the Employee Plan or
any collective bargaining agreement or as required by law, have been made on  or
before  their due dates and, to the extent required by GAAP, a reasonable amount
has been accrued for  contributions to each Employee  Plan for the current  plan
years; (v) none of the Employee Plans are, or are expected to become, subject to
the  provisions of Title IV of ERISA or Section 412 of the Code and (vi) neither
the Company nor  any ERISA  Affiliate has  incurred, nor  reasonably expects  to
incur,  any liability under Title IV of  ERISA (other than liability for premium
payments to the  Pension Benefit  Guaranty Corporation arising  in the  ordinary
course).
 
    (c)  To  the  knowledge  of  the  Company,  there  are  no  pending material
investigations, litigation or other enforcement actions against the Company with
respect to any of the Employee Plans.
 
    (d) Other than  as set forth  in Section 3.11(d)  of the Company  Disclosure
Schedule, there are no material actions, suits or claims pending or, to the best
knowledge  of  the Company,  threatened by  former or  present employees  of the
Company (or their beneficiaries) with respect to Employee Plans or the assets or
fiduciaries thereof (other than routine claims for benefits).
 
    (e) Other than  as described in  Section 3.11(e) of  the Company  Disclosure
Schedule,  to the knowledge of  the Company, no condition  or event has occurred
with respect to the Employee Plans which has or could reasonably be expected  to
result in a material liability to the Company.
 
    (f)  Section 3.11(f)(1) of the Company Disclosure Schedule sets forth a true
and complete list of each current or former employee, officer or director of the
Company or any of its  subsidiaries who holds an Option  as of the date  hereof,
together  with the  number of  shares of  Company Common  Stock subject  to such
Option, the date of grant of such Option, the exercise price of such Option  (to
the extent determined as of the date hereof), whether such Option is intended to
qualify  as an "incentive stock option" within  the meaning of Section 422(b) of
the Code (an "ISO"), and the expiration date of such Option. Section  3.11(f)(2)
of the Company Disclosure Schedule also sets forth the total number of Options.
 
    (g)  With respect  to each  scheme or  arrangement mandated  by a government
other than the United States (a "FOREIGN GOVERNMENT SCHEME OR ARRANGEMENT")  and
with  respect  to  each  Employee  Plan  maintained  or  contributed  to  by any
subsidiary of the Company that is not  subject to United States law (a  "FOREIGN
EMPLOYEE   PLAN"),  except  as  any  inaccuracy  in  the  following  statements,
individually or in the aggregate, would not have a Material Adverse Effect:
 
        (i) Any employer and  employee contributions required by  law or by  the
    terms  of  any  Foreign  Government Scheme  or  Arrangement  or  any Foreign
    Employee Plan have been made, or, if applicable, accrued, in accordance with
    normal accounting practices.
 
        (ii) Except as disclosed  in Section 3.11(g)  of the Company  Disclosure
    Schedule,  the  fair  market value  of  the  assets of  each  funded Foreign
    Employee Plan, the liability of each  insurer for any Foreign Employee  Plan
    funded  through insurance  or the book  reserve established  for any Foreign
    Employee Plan, together  with any  accrued contributions,  is sufficient  to
    procure  or provide for the  accrued benefit obligations, as  of the date of
    this Agreement, with respect to all current and former participants in  such
    Foreign  Employee Plan according to the actuarial assumptions and valuations
    most recently  used  to determine  employer  contributions to  such  Foreign
    Employee  Plan and no transaction contemplated by this Agreement shall cause
    such  assets  or  insurance  obligations  to  be  less  than  such   benefit
    obligations.
 
       (iii)  Each  Foreign Employee  Plan required  to  be registered  has been
    registered  and  has  been  maintained  in  good  standing  with  applicable
    regulatory authorities.
 
                                       13
<PAGE>
    (h)  Section 3.11(h) of the Company  Disclosure Schedule sets forth the wage
review and compensation guidelines for employees adopted by the Company in 1996.
 
    (i) The Company has  made available to Parent  (i) copies of all  employment
agreements  with officers  of the  Company; (ii)  copies of  all agreements with
consultants who  are individuals  obligating  the Company  to make  annual  cash
payments  in an amount exceeding  $100,000 and which are  not terminable on less
than 60  days' notice  without penalty;  (iii) copies  of all  plans,  programs,
agreements  and  other  arrangements of  the  Company  with or  relating  to its
employees which contain change in control provisions; and (iv) the various forms
of employment agreement, if any, of the Company for its non-executive employees.
 
    SECTION 3.12.  LABOR MATTERS.  (i) There are no controversies pending or, to
the knowledge of the Company or any of its subsidiaries, threatened, between the
Company or any of its subsidiaries and any of their respective employees,  which
controversies  are reasonably  likely to  have a  Material Adverse  Effect; (ii)
neither the Company nor  any of its  subsidiaries is a  party to any  collective
bargaining  agreement  or  other  labor  union  contract  applicable  to persons
employed by the Company or its subsidiaries  nor does the Company or any of  its
subsidiaries  know  of  any activities  or  proceedings  of any  labor  union to
organize any  such employees;  and (iii)  neither  the Company  nor any  of  its
subsidiaries  has  any  knowledge  of any  strikes,  slowdowns,  work stoppages,
lockouts, or threats thereof, by or with respect to any employees of the Company
or any of its subsidiaries.
 
    SECTION 3.13.    REGISTRATION  STATEMENT;  PROXY  STATEMENT.    Neither  the
Schedule  14D-9 nor  any of the  information supplied  or to be  supplied by the
Company in writing for inclusion or incorporation by reference in (i) the  Offer
Documents,  (ii) the Registration Statement on Form S-4 to be filed with the SEC
by Parent in connection with the issuance  of Parent Common Stock in the  Merger
(together  with any amendments thereof or supplements thereto, the "REGISTRATION
STATEMENT") or  (iii) the  proxy and/or  information statement  relating to  the
meeting  of the Company's stockholders  (the "COMPANY STOCKHOLDERS' MEETING") to
be held in connection with the Merger (the "PROXY STATEMENT" and, together  with
the  Registration  Statement,  the "PROXY  STATEMENT/PROSPECTUS")  will,  at the
respective times filed with the SEC or other regulatory agency and, in addition,
(A) in the case of  the Offer Documents, at the  date they or any amendments  or
supplements  thereto are mailed  to Stockholders, (B)  in the case  of the Proxy
Statement/Prospectus, at the date  it or any  amendments or supplements  thereto
are mailed to stockholders, at the time of the Company Stockholders' Meeting and
at the Effective Time and (C) in the case of the Registration Statement, when it
becomes  effective under the  Securities Act and at  the Effective Time, contain
any untrue statement  of a  material fact  or omit  to state  any material  fact
required  to be  stated therein  or necessary  in order  to make  the statements
therein,  in  light  of  the  circumstances  under  which  they  are  made,  not
misleading. The Proxy Statement and Schedule 14D-9 will comply as to form in all
material  respects with  the applicable provisions  of the Exchange  Act and the
rules and regulations thereunder. If at any time prior to the Effective Time any
event relating to the Company or  any of its respective affiliates, officers  or
directors  should be discovered by  the Company which should  be set forth in an
amendment or supplement to  the Registration Statement,  Offer Documents or  the
Proxy  Statement/Prospectus, the Company shall promptly inform Parent and Merger
Sub. Notwithstanding  the  foregoing, the  Company  makes no  representation  or
warranty  with respect to any information supplied by Parent or Merger Sub which
is contained in any of the foregoing documents.
 
    SECTION 3.14.    RESTRICTIONS  ON  BUSINESS ACTIVITIES.    Except  for  this
Agreement, there is no material agreement, judgment, injunction, order or decree
binding  upon  the  Company  or  any of  its  subsidiaries  which  has  or could
reasonably be expected to have (after  giving effect to the consummation of  the
Offer  and  the Merger)  the  effect of  prohibiting  or impairing  any material
business operations of the  Company or any of  its subsidiaries, acquisition  of
property by the Company or any of its subsidiaries or the conduct of business by
the  Company or any of its subsidiaries as currently conducted or as proposed to
be conducted by the Company.
 
                                       14
<PAGE>
    SECTION 3.15.  TITLE TO PROPERTY.  The Company and each of its  subsidiaries
have  good,  marketable and  defensible  title to  all  of their  properties and
assets, free and clear of all  liens, charges and encumbrances except liens  for
taxes not yet due and payable and such liens or other imperfections of title, if
any,  as  do not  materially detract  from the  value of  or interfere  with the
present use of the property affected thereby or which would not have a  Material
Adverse Effect on the Company.
 
    SECTION 3.16.   TAXES.  (a) For purposes of this Agreement, "TAX" or "TAXES"
shall  mean  taxes,  fees,  levies, duties,  tariffs,  imposts  and governmental
impositions or charges  of any  kind in  the nature  of (or  similar to)  taxes,
payable  to any federal,  state, provincial, local  or foreign taxing authority,
including (without limitation) (i)  income, franchise, profits, gross  receipts,
AD  VALOREM,  net worth,  value  added, sales,  use,  service, real  or personal
property, special  assessments, capital  stock, license,  payroll,  withholding,
employment,  social security, workers'  compensation, unemployment compensation,
utility, severance, production,  excise, stamp,  occupation, premiums,  windfall
profits, transfer and gains taxes and (ii) interest, penalties, additional taxes
and  additions to tax imposed with respect thereto; and "TAX RETURNS" shall mean
returns, reports and information statements with respect to Taxes required to be
filed with the United States Internal  Revenue Service (the "IRS") or any  other
taxing   authority,   domestic  or   foreign,  including,   without  limitation,
consolidated, combined and unitary tax returns.
 
    (b) Other than  as disclosed on  Section 3.16(b) of  the Company  Disclosure
Schedule,  the  Company  and each  of  its subsidiaries,  and  any consolidated,
combined, unitary or aggregate  group for Tax purposes  of which the Company  or
any  of its subsidiaries is  or has been a member,  have filed all United States
federal income Tax  Returns and all  other material Tax  Returns required to  be
filed  by them  or any  of them, and  have paid  and discharged  all Taxes shown
therein to be due and there are no other Taxes that would be due if asserted  by
a  taxing  authority,  except such  as  are  being contested  in  good  faith by
appropriate proceedings (to the extent  that any such proceedings are  required)
or  with respect to which the Company is maintaining reserves in accordance with
GAAP in  its  financial statements  to  the  extent currently  required  in  all
material  respects adequate for their payment,  except, in each instance, to the
extent the failure to  do so would  not have a Material  Adverse Effect. To  the
best  of the Company's knowledge, the Company  and each of its subsidiaries have
disclosed to the relevant taxing authority any position taken where the  failure
to make such disclosure would enable the taxing authority to subject such person
to  penalties or  additions to  Tax that would  have a  Material Adverse Effect.
Neither the IRS nor any other taxing authority or agency is now asserting or, to
the best of the Company's knowledge,  threatening to assert against the  Company
or  any of its subsidiaries  any deficiency or claim  for additional Taxes other
than additional Taxes with respect to which the Company is maintaining  reserves
in  accordance with GAAP in  its financial statements which  are in all material
respects adequate for their payment. There are no requests for information  from
the IRS or any other taxing authority or agency currently outstanding that could
have  a  Material Adverse  Effect imposed  on the  Company or  any subsidiaries.
Except as disclosed in  Section 3.16(b) of the  Company Disclosure Schedule,  no
material  Tax  Return  of either  the  Company  or any  of  its  subsidiaries is
currently being  audited by  any taxing  authority. No  material tax  claim  has
become a lien on any assets of the Company or any subsidiary thereof and neither
the Company nor any of its subsidiaries has granted any waiver of any statute of
limitations with respect to, or any extension of a period for the assessment of,
any  federal income tax (except  as disclosed in Section  3.16(b) of the Company
Disclosure Schedule) or material state corporate income or franchise tax (except
as the Company has  advised Parent's representatives).  Neither the Company  nor
any  of its subsidiaries is required to include in income (i) any material items
in respect of any change in  accounting principles or any deferred  intercompany
transactions,  or (ii) any installment sale  gain, where the inclusion in income
would result in a tax liability materially in excess of the reserves therefor.
 
    (c) The  Company  on  behalf  of itself  and  all  its  subsidiaries  hereby
represents  that,  other than  as disclosed  on Section  3.16(c) of  the Company
Disclosure Schedule, and  other than  with respect  to items  the inaccuracy  of
which would not have a Material Adverse Effect: (i) to the best of the Company's
knowledge,  neither the Company  nor any of  its subsidiaries is  a party to any
agreement, contract or
 
                                       15
<PAGE>
arrangement, or maintains or sponsors  any Employee Plans, that will  reasonably
be  expected to result,  separately or in  the aggregate, in  the payment of any
"excess parachute payment" within the meaning of Section 280G(b)(1) of the Code,
determined without regard to Section 280G(b)(4) of the Code; (ii) since  January
1,  1989, neither the Company nor any of its subsidiaries has been subject or is
likely to be subject to any accumulated earnings tax or personal holding company
tax; (iii) except  for its  subsidiaries organized  in Germany,  France and  the
Netherlands,  none of the  Company's foreign subsidiaries  have material "excess
passive assets" as  defined in  section 956A(c) of  the Code;  (iv) neither  the
Company  nor  any of  its  subsidiaries is  obligated  under any  agreement with
respect to industrial  development bonds  or other obligations  with respect  to
which  the  excludability from  gross  income of  the  holder for  United States
federal or  state income  tax purposes  could be  affected by  the  transactions
contemplated  hereunder; (v) neither the Company nor any of its subsidiaries has
entered into any deferred intercompany transaction within the meaning of section
1.1502-13(a)(2) of the United States  Treasury Regulations as to which  material
items  of deferred  gain or  loss has  not been  restored; and  (vi) no material
excess loss account  within the  meaning of section  1.1502-31T(a)(2)(v) of  the
United  States Treasury Regulations exists  with respect to the  stock of any of
its subsidiaries.
 
    (d) Except  as  set forth  in  Section  3.16(d) of  the  Company  Disclosure
Schedule,  no power of  attorney has been granted  by the Company  or any of its
subsidiaries with respect  to any  material matter  relating to  Taxes which  is
currently in force.
 
    (e)  Neither  the Company  nor any  of its  subsidiaries is  a party  to any
material agreement or arrangement (written or oral) providing for the allocation
or sharing of Taxes.
 
    (f) The Company and each of its subsidiaries have withheld from each payment
made to any of their respective past or present employees, officers or directors
the amount of all Taxes and  other deductions required to be withheld  therefrom
and  paid the same to the proper tax or other receiving officers within the time
required by law, except  where the failure  to do so would  not have a  Material
Adverse Effect.
 
    SECTION  3.17.  ENVIRONMENTAL MATTERS.  Except  as set forth in Section 3.17
of the Company Disclosure Schedule, and  except in all cases, in the  aggregate,
as  have not had and would not reasonably be expected to have a Material Adverse
Effect, the  Company  and  each  of  its  subsidiaries  (i)  have  obtained  all
applicable  permits, licenses and  other authorization which  are required under
federal, state  or  local  laws  relating to  pollution  or  protection  of  the
environment,  including  laws  relating to  emissions,  discharges,  releases or
threatened releases of pollutants, contaminants or hazardous or toxic  materials
or  wastes into ambient  air, surface water,  ground water or  land or otherwise
relating to the manufacture, processing, distribution, use, treatment,  storage,
disposal,  transport  or handling  of pollutants,  contaminants or  hazardous or
toxic materials  or  wastes  by  the  Company  or  its  subsidiaries  (or  their
respective  agents) (the "ENVIRONMENTAL LAWS"); (ii)  are in compliance with all
terms and conditions of such  required permits, licenses and authorization,  and
also  are in  compliance with  all other  limitations, restrictions, conditions,
standards, prohibitions,  requirements,  obligations, schedules  and  timetables
contained  in the Environmental Laws or contained in any regulation, code, plan,
order, decree, judgment, notice or demand letter issued, entered, promulgated or
approved thereunder; (iii)  as of the  date hereof,  are not aware  of nor  have
received  notice  of  any event,  condition,  circumstance,  activity, practice,
incident, action  or plan  which  is reasonably  likely  to interfere  with  the
Company's  operations, or  prevent continued  compliance with  the Environmental
Laws, or which  would reasonably be  likely to give  rise to any  common law  or
statutory  liability of, or otherwise form the  basis of any claim, action, suit
or proceeding against, the Company or any  of its subsidiaries (or any of  their
respective  agent's)  based on  or resulting  from the  manufacture, processing,
distribution, use, treatment, storage, disposal,  transport or handling, or  the
emission,   discharge  or  release  into  the  environment,  of  any  pollutant,
contaminant or hazardous  or toxic material  or waste; and  (iv) have taken  all
actions necessary under applicable requirements of federal, state or local laws,
rules  or  regulations to  register  any products  or  materials required  to be
registered by  the Company  or  its subsidiaries  (or  any of  their  respective
agents) thereunder.
 
                                       16
<PAGE>
    SECTION  3.18.  BROKERS.  No broker, finder or investment banker (other than
Salomon Brothers Inc)  is entitled to  any brokerage, finder's  or other fee  or
commission  in connection with  the transactions contemplated  by this Agreement
based upon arrangements made  by or on  behalf of the  Company. The Company  has
heretofore  furnished to  Parent a complete  and correct copy  of all agreements
between the Company and Salomon Brothers  Inc pursuant to which such firm  would
be entitled to any payment relating to the transactions contemplated hereunder.
 
    SECTION 3.19.   INTELLECTUAL PROPERTY.  (a) The Company owns, or is licensed
or   otherwise  possesses  legally  enforceable  rights  to  use,  all  patents,
trademarks,  trade  names,  service  marks,  copyrights  and  any   applications
therefor,  technology, know-how, computer software  programs or applications (in
both source code and  object code form) and  tangible or intangible  proprietary
information  or material that are used or proposed to be used in the business of
the Company, each  of which,  where applicable,  is to  the Company's  knowledge
valid  and subsisting. Section 3.19(a) of  the Company Disclosure Schedule lists
all current patents, registered and material unregistered trademarks and service
marks, registered  and material  unregistered copyrights,  trade names  and  any
applications  therefor owned by the  Company (the "COMPANY INTELLECTUAL PROPERTY
RIGHTS"),  and  specifies   the  jurisdictions  in   which  each  such   Company
Intellectual  Property  Right  has been  issued  or  registered or  in  which an
application for such  issuance and  registration has been  filed, including  the
respective  registration or application numbers and  the names of all registered
owners, together with a list of all of the Company's currently marketed software
products and an indication as to which,  if any, of such software products  have
been registered for copyright protection with the United States Copyright Office
and  any foreign offices  and by whom  such items have  been registered. Section
3.19(a) of the Company  Disclosure Schedule (as supplemented  during the 14  day
period  following  the date  hereof)  includes and  specifically  identifies all
material  third-party  patents,  trademarks  or  copyrights  (the  "THIRD  PARTY
INTELLECTUAL  PROPERTY  RIGHTS"), to  the knowledge  of  the Company,  which are
incorporated in, are, or form a part of, any Company product. Section 3.19(a) of
the Company  Disclosure  Schedule (as  supplemented  during the  14  day  period
following  the date hereof (in the case of clause (iii))) lists (i) any requests
the Company has received since December 31, 1993 to make any such  registration,
including  the  identity  of the  requestor  and  the item  requested  to  be so
registered, and the  jurisdiction for  which such  request has  been made;  (ii)
except  for object  code and  source code  license agreements  for the Company's
products executed in the ordinary course of business and in accordance with  the
Company's   past  practices,  all  material   licenses,  sublicenses  and  other
agreements as to which the Company is  a party and pursuant to which any  person
is  authorized  to use  any Company  Intellectual Property  Right, or  any trade
secret material to the Company; and (iii) all material licenses, sublicenses and
other agreements as to which  the Company is a party  and pursuant to which  the
Company  is authorized to  use any Third Party  Intellectual Property Rights, or
other trade secret  of a  third party  in or as  any product,  and includes  the
identity  of all parties thereto, a description of the nature and subject matter
thereof, the applicable royalty and the term thereof.
 
    (b) Except  as  set forth  in  Section  3.19(b) of  the  Company  Disclosure
Schedule,  the Company is not, nor  will it be as a  result of the execution and
delivery of this Agreement or the  performance of its obligations hereunder,  in
violation of any Third Party Intellectual Property Rights license, sublicense or
agreement  described in Section  3.19(a) of the  Company Disclosure Schedule. No
claims with  respect to  the  Company Intellectual  Property Rights,  any  trade
secret  material to the Company, or  Third Party Intellectual Property Rights to
the extent arising out  of any use, reproduction  or distribution of such  Third
Party  Intellectual Property  Rights by  or through  the Company,  are currently
pending or, to the knowledge of the Company, are threatened by any person,  nor,
to  the Company's knowledge, do any valid grounds for any bona fide claims exist
(i) to the effect that the manufacture, sale, licensing or use of any product as
now used, sold or licensed or proposed  for use, sale or license by the  Company
infringes  on any  copyright, patent, trademark,  service mark  or trade secret;
(ii) against  the use  by the  Company  of any  trademarks, trade  names,  trade
secrets, copyrights, patents, technology, know-how or computer software programs
and  applications used  in the Company's  business as currently  conducted or as
proposed to  be  conducted by  the  Company; (iii)  challenging  the  ownership,
validity  or effectiveness of any of the Company Intellectual Property Rights or
other trade secret material to the
 
                                       17
<PAGE>
Company; or (iv) challenging the Company's license or legally enforceable  right
to  use of the Third  Party Intellectual Rights. Except  as set forth in Section
3.19(b) of the Company Disclosure Schedule, to the Company's knowledge, there is
no material unauthorized  use, infringement  or misappropriation of  any of  the
Company Intellectual Property by any third party. Except as set forth in Section
3.19(b)  of the Company Disclosure Schedule, neither  the Company nor any of its
subsidiaries (i) has  been sued  or charged  in writing  as a  defendant in  any
claim,  suit, action  or proceeding  which involves  a claim  or infringement of
trade secrets, any patents, trademarks,  service marks, maskworks or  copyrights
and  which has  not been  finally terminated  prior to  the date  hereof or been
informed or notified by any third party that the Company may be engaged in  such
infringement  or (ii) has  knowledge of any  infringement liability with respect
to, or infringement  by, the Company  or any  of its subsidiaries  of any  trade
secret, patent, trademark, service mark, maskwork or copyright of another.
 
    (c)   Substantially   all  employees   of  the   Company  have   executed  a
confidentiality and invention agreement  containing terms substantially  similar
to the form previously delivered to Parent.
 
    SECTION  3.20.  VOTE  REQUIRED.  The  affirmative vote of  the holders of at
least a majority of the  outstanding shares of the  Company Common Stock is  the
only  vote of the holders of any class  or series of the Company's capital stock
necessary to approve the Merger.
 
    SECTION 3.21.  OPINION OF FINANCIAL  ADVISOR.  The Company has been  advised
by  its financial advisor, Salomon Brothers Inc,  that in its opinion, as of the
date hereof, the consideration to be  received by holders of the Company  Common
Stock in the Offer and the Merger is fair from a financial point of view to such
holders, and has delivered a written copy of such opinion to Parent.
 
    SECTION  3.22.  FULL DISCLOSURE.   No statement contained in any certificate
or schedule furnished or to be furnished  by the Company or its subsidiaries  to
Parent  or  Merger Sub  in, or  pursuant  to the  provisions of,  this Agreement
contains or shall contain any  untrue statement of a  material fact or omits  or
will   omit  to  state  any  material  fact  necessary,  in  the  light  of  the
circumstances under which it was made, to make the statements herein or  therein
not misleading.
 
                                   ARTICLE IV
            REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUB
 
    Parent  and Merger Sub hereby, jointly  and severally, represent and warrant
to the Company that:
 
    SECTION 4.01.  ORGANIZATION AND QUALIFICATION.   Each of Parent and each  of
its  subsidiaries is a corporation duly  organized, validly existing and in good
standing under the  laws of the  jurisdiction of its  incorporation and has  the
requisite  corporate power and  authority and is in  possession of all Approvals
necessary to own, lease and operate  the properties it purports to own,  operate
or lease and to carry on its business as it is now being conducted, except where
the  failure to be so  organized, existing and in good  standing or to have such
power, authority and Approvals would not have a Material Adverse Effect. Each of
Parent and each of its subsidiaries is  duly qualified or licensed as a  foreign
corporation  to do business, and is in good standing, in each jurisdiction where
the character of its properties owned, leased or operated by it or the nature of
its activities makes such qualification or licensing necessary, except for  such
failures to be so duly qualified or licensed and in good standing that would not
have a Material Adverse Effect.
 
    SECTION  4.02.  AUTHORITY  RELATIVE TO THIS  AGREEMENT.  Each  of Parent and
Merger Sub  has all  necessary  corporate power  and  authority to  execute  and
deliver  this  Agreement  and  to  perform  its  obligations  hereunder  and  to
consummate the transactions contemplated hereby.  The execution and delivery  of
this  Agreement by  Parent and  Merger Sub  and the  consummation by  Parent and
Merger Sub of the  transactions contemplated hereby have  been duly and  validly
authorized  by all necessary corporate  action on the part  of Parent and Merger
Sub, and no other corporate proceedings on the part of Parent or Merger Sub  are
necessary  to  authorize this  Agreement or  to  consummate the  transactions so
contemplated. The Boards of Directors of  Parent and Merger Sub have  determined
that  it is advisable and in the  best interest of their respective stockholders
for each to enter into a business
 
                                       18
<PAGE>
combination with the  Company upon the  terms and subject  to the conditions  of
this  Agreement. This Agreement has been duly and validly executed and delivered
by Parent and  Merger Sub  and, assuming  the due  authorization, execution  and
delivery  by the Company,  constitutes a legal, valid  and binding obligation of
Parent and Merger Sub.
 
    SECTION 4.03.   NO CONFLICT;  REQUIRED FILINGS  AND CONSENTS.   (a)  Section
4.03(a)  of the written  disclosure schedule previously  delivered by Parent and
Merger Sub to the Company (the "PARENT DISCLOSURE SCHEDULE") includes a list  of
all contracts material to the business of Parent and its subsidiaries taken on a
whole ("PARENT MATERIAL CONTRACT").
 
    (b)  Except  as  set  forth  in Section  4.03(b)  of  the  Parent Disclosure
Schedule, the execution and delivery of this Agreement by Parent and Merger  Sub
do  not, and the  performance of this  Agreement by Parent  and Merger Sub shall
not, (i) conflict with or violate the Certificate of Incorporation or By-Laws of
Parent or the Articles of Incorporation or By-Laws of Merger Sub, (ii)  conflict
with  or violate any law, rule, regulation, order, judgment or decree applicable
to Parent  or  any of  it  subsidiaries or  by  which its  or  their  respective
properties are bound or affected, or (iii) result in any breach of or constitute
a default (or an event which with notice or lapse of time or both would become a
default)  under, or impair Parent's or any  of its subsidiaries' rights or alter
the rights or obligations of any third party under, or give to others any rights
of termination, amendment, acceleration or cancellation of, any Parent  Material
Contract  or result  in the  creation of  a lien  or encumbrance  on any  of the
properties or  assets of  Parent or  any  of it  subsidiaries pursuant  to,  any
material  note, bond, mortgage, indenture,  contract, agreement, lease, license,
permit, franchise or other  instrument or obligation to  which Parent or any  of
its subsidiaries is a party or by which Parent or any of its subsidiaries or its
or  any of their respective properties are bound or affected, except in any such
case for any such breaches, defaults or other occurrences that would not have  a
Material Adverse Effect.
 
    (c)  The execution and delivery  of this Agreement by  Parent and Merger Sub
will not require any  consent, approval, authorization or  permit of, or  filing
with  or notification to, any governmental  or regulatory authority, domestic or
foreign, except (i) for applicable requirements, if any, of the Securities  Act,
the Exchange Act, the Blue Sky Laws and the pre-merger notification requirements
of  the HSR Act, and (ii) where  the failure to obtain such consents, approvals,
authorizations or permits, or to make  such filings or notifications, would  not
prevent  or delay  consummation of  the Merger,  or otherwise  prevent Parent or
Merger Sub from  performing their respective  obligations under this  Agreement,
and would not have a Material Adverse Effect.
 
    SECTION  4.04.    CERTIFICATE  OF INCORPORATION  AND  BY-LAWS.    Parent has
heretofore furnished  to  the  Company  a  complete  and  correct  copy  of  its
Certificate  of  Incorporation  and  the  By-Laws,  as  amended  to  date.  Such
Certificate of Incorporation and By-Laws are  in full force and effect.  Neither
Parent  nor  Merger  Sub  is  in  violation of  any  of  the  provisions  of its
Certificate of Incorporation or By-Laws.
 
    SECTION 4.05.   CAPITALIZATION.   As  of January  31, 1996,  the  authorized
capital  stock of  Parent consisted of  (i) 500,000,000 shares  of Parent Common
Stock of which: 162,025,947 shares  were issued and outstanding, 342,489  shares
were  held by subsidiaries of the Company  or in its treasury, 38,459,745 shares
were reserved for issuance pursuant to option grants under Parent's stock option
plans, 1,774,574 were  reserved for  future issuance pursuant  to option  grants
under  Parent's employee stock  purchase plan, 589,266  were reserved for future
issue on exchange of shares issued by a subsidiary, 619,469 shares were reserved
for future issuance with  respect to Parent's  outstanding Series A  Convertible
Preferred  Stock, 7,402,395  shares were reserved  for issuance  with respect to
Zero Coupon Convertible Subordinated Debentures due 2013 and 49,659 shares  were
reserved  for issuance with respect to  a convertible debenture due November 11,
1997; and  (ii) 2,000,000  shares  of Preferred  Stock,  no par  value  ("PARENT
PREFERRED  STOCK"), of  which: 17,500 shares  of Series  A Convertible Preferred
Stock and one share of Series E Preferred Stock were issued and outstanding.  No
material change in such capitalization has occurred between January 31, 1996 and
the  date hereof. The authorized  capital stock of Merger  Sub consists of 1,000
shares of common stock, no par value, 100
 
                                       19
<PAGE>
shares of which, as of the date  hereof, are issued and outstanding. All of  the
outstanding  shares of Parent's  and Merger Sub's  respective capital stock have
been duly authorized and  validly issued and are  fully paid and  nonassessable.
The  issuance of shares  of Parent Common  Stock in connection  with the Merger,
upon exercise  of  Options  assumed  and  upon  conversion  of  the  Convertible
Debentures  have been duly  authorized, and, when issued  in connection with the
Merger or upon such exercise or  conversion, will be validly issued, fully  paid
and nonassessable.
 
    SECTION  4.06.   COMPLIANCE; PERMITS.   (a) Neither  Parent, nor  any of its
subsidiaries is in conflict with,  or in default or  violation of, (i) any  law,
rule,  regulation, order, judgment or decree applicable  to Parent or any of its
subsidiaries or by which its or any  of their respective properties is bound  or
affected  or  (ii) any  note,  bond, mortgage,  indenture,  contract, agreement,
lease, license, permit,  franchise or  other instrument or  obligation to  which
Parent  or any of its subsidiaries  is a party or by  which Parent or any of its
subsidiaries or is or any of  their respective properties is bound or  affected,
except  for any such  conflicts, defaults or  violations which would  not have a
Material Adverse Effect.
 
    (b) Parent  and  its subsidiaries  hold  all permits,  licenses,  easements,
variances,   exemptions,  consents,  certificates,  orders  and  approvals  from
governmental authorities which are material to the operation of the business  of
the  Company and its subsidiaries taken as a  whole as it is now being conducted
(collectively, the  "PARENT  PERMITS").  Parent  and  its  subsidiaries  are  in
compliance  with the terms of the Parent Permits, except where the failure to so
comply would not have a Material Adverse Effect.
 
    SECTION 4.07.  SEC FILINGS; FINANCIAL STATEMENTS.  (a) Parent has filed  all
forms,  reports and documents required  to be filed with  the SEC since June 30,
1993, and has heretofore delivered  to the Company, in  the form filed with  the
SEC,  (i) its Annual Report on Form 10-K for the fiscal year ended June 30, 1995
and its Quarterly Reports on Form  10-Q for the fiscal quarters ended  September
30,  1995 and December 31, 1995, (ii)  all proxy statements relating to Parent's
meetings of stockholders (whether annual or  special) held since June 30,  1995,
(iii)  all other reports or registration  statements (other than Reports on Form
10-Q and Reports on Form 3, 4 or 5 filed on behalf of affiliates of the  Parent)
filed  by Parent with  the SEC since June  30, 1995 and  (iv) all amendments and
supplements to all such reports and registration statements filed by Parent with
the SEC (collectively,  the "PARENT SEC  REPORTS"). The Parent  SEC Reports  (i)
were  prepared in accordance with the requirements  of the Securities Act or the
Exchange Act, as the case may be, and  (ii) did not at the time they were  filed
(or  if amended or superseded  by a filing prior to  the date of this Agreement,
then on the date of such 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 Parent's subsidiaries is  required
to file any forms, reports or other documents with the SEC.
 
    (b)  Each of the consolidated financial statements (including, in each case,
any related notes thereto) contained in the Parent SEC Reports has been prepared
in accordance with  GAAP applied on  a consistent basis  throughout the  periods
involved  (except as  may be  indicated in  the notes  thereto) and  each fairly
presents the consolidated financial position  of Parent and its subsidiaries  as
at  the respective dates thereof and  the consolidated results of its operations
and cash flows  for the  periods indicated,  except that  the unaudited  interim
financial  statements  were  or are  subject  to normal  and  recurring year-end
adjustments which were not or are not expected to be material in amount.
 
    (c) Parent has heretofore  furnished to the Company  a complete and  correct
copy  of any amendments or modifications, which have not yet been filed with the
SEC but  which are  required to  be  filed, to  agreements, documents  or  other
instruments  which previously had been filed by  Parent with the SEC pursuant to
the Securities Act or the Exchange Act.
 
                                       20
<PAGE>
    SECTION 4.08.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as set forth on
Section  4.08 of the Parent Disclosure Schedule or the Parent SEC Reports, since
June 30, 1995,  Parent has  conducted its business  in the  ordinary course  and
there  has not occurred: (i) any Material Adverse Effect; (ii) any amendments or
changes in the  Certificate of  Incorporation or  By-Laws of  Parent; (iii)  any
damage  to, destruction  or loss  of any  assets of  the Parent  (whether or not
covered by  insurance) that  could  have a  Material  Adverse Effect;  (iv)  any
revaluation  by  Parent of  any of  its  assets, including,  without limitation,
writing down the value of capitalized software or inventory or writing off notes
or accounts receivable other than in the ordinary course of business; (v) except
as disclosed in Section 4.08 of the Parent Disclosure Schedule, any other action
or event that would have required the consent of the Company pursuant to Section
5.03 had such action or event occurred after the date of this Agreement; or (vi)
any sale of a material amount of assets of Parent, except in the ordinary course
of business.
 
    SECTION 4.09.    RESTRICTIONS  ON  BUSINESS ACTIVITIES.    Except  for  this
Agreement, there is no material agreement, judgment, injunction, order or decree
binding  upon Parent or any of its subsidiaries which has or could reasonably be
expected to have the effect of prohibiting or materially impairing any  business
practice  of Parent or any  of its subsidiaries, any  acquisition of property by
Parent or any of its subsidiaries or the conduct of business by Parent or any of
its subsidiaries  as currently  conducted  or as  proposed  to be  conducted  by
Parent.
 
    SECTION  4.10.  TITLE TO PROPERTY.  Except as is disclosed in the Parent SEC
Reports,  Parent  and  each  of  its  subsidiaries  have  good,  marketable  and
defensible  title to all of  their properties and assets,  free and clear of all
liens, charges and encumbrances except liens  for taxes not yet due and  payable
and  such liens or  other imperfections of  title, if any,  as do not materially
detract from the  value of or  interfere with  the present use  of the  property
affected thereby or which would not have a Material Adverse Effect. Except as is
disclosed  in the Parent SEC  Reports, Parent owns, or  is licensed or otherwise
possesses legally  enforceable rights  to use,  all patents,  trademarks,  trade
names,  service  marks, copyrights  and  any applications  therefor, technology,
know-how, computer software programs  or applications (in  both source code  and
object code form) and tangible or intangible proprietary information or material
that  are used or proposed to be used  in the business of Parent, each of which,
where applicable, is to Parent's knowledge valid and subsisting.
 
    SECTION 4.11.   NO  UNDISCLOSED  LIABILITIES.   Except  as is  disclosed  in
Section  4.11  of the  Parent  Disclosure Schedule  or  the Parent  SEC Reports,
neither Parent  nor  any of  its  subsidiaries has  any  liabilities  (absolute,
accrued,  contingent or otherwise) which are,  in the aggregate, material to the
business, operations or financial condition of Parent and its subsidiaries taken
as a whole, except liabilities (a)  adequately provided for in Parent's  balance
sheet  (including any related notes thereto) as of June 30, 1995 included in the
Parent SEC Reports (the "JUNE 30  BALANCE SHEET"), (b) incurred in the  ordinary
course  of business and not  required under GAAP to be  reflected on the June 30
Balance Sheet, or (c)  incurred since June  30, 1995 in  the ordinary course  of
business  and  consistent  with  past  practice,  and  liabilities  incurred  in
connection with this Agreement.
 
    SECTION 4.12.  ABSENCE OF LITIGATION.   Except as set forth in Section  4.12
of  the Parent Disclosure  Schedule or as  reflected in the  Parent SEC Reports,
there are no claims, actions,  suits, proceedings or investigations pending  or,
to   the  knowledge  of  Parent,  threatened   against  Parent  or  any  of  its
subsidiaries, or any properties or rights of Parent or any of its  subsidiaries,
before  any  court,  arbitrator or  administrative,  governmental  or regulatory
authority or  body, domestic  or foreign,  that could  have a  Material  Adverse
Effect.
 
    SECTION  4.13.  REGISTRATION STATEMENT; PROXY STATEMENT/PROSPECTUS.  Subject
to the accuracy of the representations  of the Company in Section 3.13,  neither
(i)  the Offer Documents, at the time the Offer Documents are filed with the SEC
or are first published,  sent or given  to stockholders of  the Company, as  the
case  may be, nor (ii)  the Registration Statement pursuant  to which the Parent
Common Shares to be issued in the Merger will be registered with the SEC, at the
time  the  Registration  Statement  (including  any  amendments  or  supplements
thereto) is declared effective by the SEC, shall contain any untrue statement of
a   material   fact  or   omit  to   state  any   material  fact   necessary  in
 
                                       21
<PAGE>
order to make  the statements included  therein, in light  of the  circumstances
under  which they  were made,  not misleading.  Subject to  the accuracy  of the
representations of  the Company  in Section  3.13, the  information supplied  by
Parent for inclusion in the Proxy Statement/Prospectus will not, on the date the
Proxy  Statement/Prospectus is first mailed to  stockholders, at the time of the
Company Stockholders' Meeting and at  the Effective Time, contain any  statement
which,  at such time and  in light of the circumstances  under which it shall be
made, is false or misleading with respect to any material fact, or will omit  to
state  any material fact necessary  in order to make  the statements therein not
false or  misleading. If  at any  time prior  to the  Effective Time  any  event
relating  to Parent, Merger Sub or  any of their respective affiliates, officers
or directors should be discovered  by Parent or Merger  Sub which should be  set
forth in an amendment to the Registration Statement or a supplement to the Proxy
Statement/Prospectus,  Parent or  Merger Sub  will promptly  inform the Company.
Notwithstanding the foregoing, Parent makes  no representation or warranty  with
respect  to any information  supplied by the  Company which is  contained in, or
furnished in connection with the preparation of, any of the foregoing. The Offer
Documents and the Registration Statement  shall comply in all material  respects
as  to form with  the requirements of  the Exchange Act  and the Securities Act,
respectively, and the rules and regulations thereunder.
 
    SECTION 4.14.  BROKERS.  No broker, finder or investment banker (other  than
Unterberg  Harris L.P.) is entitled  to any brokerage, finder's  or other fee or
commission in connection  with the transactions  contemplated by this  Agreement
based upon arrangements made by or on behalf of Parent or Merger Sub.
 
    SECTION  4.15.  NO STOCKHOLDER VOTE.   No vote of the stockholders of Parent
is necessary to approve the Offer or the Merger or the issuance of Parent Common
Shares therein.
 
    SECTION 4.16.   FINANCING.  Parent  has, or will  have, sufficient funds  to
permit Merger Sub to acquire Shares pursuant to the Offer and the Merger.
 
    SECTION  4.17.  FULL DISCLOSURE.   No statement contained in any certificate
or schedule furnished or to be furnished by Parent or Merger Sub to the  Company
in,  or pursuant to the  provisions of, this Agreement  contains or will contain
any untrue statement  of a material  fact or omits  or shall omit  to state  any
material  fact necessary, in the  light of the circumstances  under which it was
made, to make the statements herein or therein not misleading.
 
                                   ARTICLE V
                     CONDUCT OF BUSINESS PENDING THE MERGER
 
    SECTION  5.01.     CONDUCT   OF  BUSINESS   BY  THE   COMPANY  PENDING   THE
MERGER.   Except as may be otherwise expressly indicated as permitted in Section
5.01 of the Company Disclosure Schedule, during the period from the date of this
Agreement and continuing until the earlier of the termination of this  Agreement
or  the Effective  Time, the  Company covenants  and agrees  that, unless Parent
shall otherwise agree  in writing, the  Company shall conduct  its business  and
shall  cause the businesses of its subsidiaries to be conducted only in, and the
Company and its subsidiaries  shall not take any  action except in the  ordinary
course  of  business and  in a  manner  consistent with  past practice;  and the
Company shall use reasonable commercial efforts to preserve substantially intact
the business organization of the Company and its subsidiaries, to keep available
the services of the present officers,  employees and consultants of the  Company
and  its subsidiaries,  to take all  reasonable action necessary  to prevent the
loss,  cancellation,  abandonment,  forfeiture  or  expiration  of  any  Company
Intellectual  Property, Third  Party Intellectual Property  Rights, and Material
Contracts and  to preserve  the present  relationships of  the Company  and  its
subsidiaries  with customers, suppliers and other persons with which the Company
or any  of  its subsidiaries  has  significant  business relations.  By  way  of
amplification  and not limitation, except as  contemplated by this Agreement and
Section 5.01 of the Company Disclosure Schedule, neither the Company nor any  of
its subsidiaries shall, during the
 
                                       22
<PAGE>
period  from the date of this Agreement  and continuing until the earlier of the
termination of this Agreement or the Effective Time, directly or indirectly  do,
or  propose to  do, any of  the following  without the prior  written consent of
Parent:
 
        (a) amend or otherwise change the Company's Certificate of Incorporation
    or By-Laws;
 
        (b) issue,  sell,  pledge, dispose  of  or encumber,  or  authorize  the
    issuance, sale, pledge, disposition or encumbrance of, any shares of capital
    stock  of any  class, or  any options,  warrants, convertible  securities or
    other rights of  any kind to  acquire any  shares of capital  stock, or  any
    other   ownership  interest  (including,  without  limitation,  any  phantom
    interest) of the Company, any of its subsidiaries or affiliates (except  for
    the  issuance of shares of the Company Common Stock issuable pursuant to the
    exercise of Options  under the  Stock Option  Plans (as  defined in  Section
    2.06(c))  or pursuant  to rights to  purchase such shares  under the Company
    Stock Purchase  Plan  (as defined  in  Section 2.06(c)),  which  Options  or
    rights,  as the  case may  be, are  outstanding on  the date  hereof or with
    respect to the Convertible Debentures);
 
        (c) sell, pledge, dispose  of or encumber any  assets of the Company  or
    any  of its  subsidiaries (except  for (i) sales  of assets  in the ordinary
    course of business and  in a manner consistent  with past practice on  which
    individually  and  in  the  aggregate  do  not  exceed  $1,000,000  and (ii)
    dispositions of obsolete or worthless assets);
 
        (d) amend or change the period (or permit any acceleration, amendment or
    change) of exercisability of Options  or restricted stock granted under  the
    Stock  Option  Plans or  authorize cash  payments in  exchange for  any such
    Options or restricted stock;
 
        (e)  (i)  declare,  set  aside,  make  or  pay  any  dividend  or  other
    distribution (whether in cash, stock or property or any combination thereof)
    in  respect  of  any  of  its capital  stock,  except  that  a  wholly owned
    subsidiary of the Company may declare and pay a dividend to its parent, (ii)
    split, combine or reclassify any of its capital stock or issue or  authorize
    or propose the issuance of any other securities in respect of, in lieu of or
    in substitution for shares of its capital stock or (iii) amend the terms of,
    repurchase,  redeem  or  otherwise  acquire,  or  permit  any  subsidiary to
    repurchase, redeem  or  otherwise acquire,  any  of its  securities  or  any
    securities of its subsidiaries, or propose to do any of the foregoing;
 
        (f)  sell,  transfer, license,  sublicense or  otherwise dispose  of any
    Company  Intellectual  Property  (other  than  in  the  ordinary  course  of
    business,  consistent with past  practice, in connection  with systems sales
    and software developer programs), or amend or modify any existing agreements
    with  respect  to   any  Company  Intellectual   Property  or  Third   Party
    Intellectual Property Rights;
 
        (g)  (i) acquire (by  merger, consolidation, or  acquisition of stock or
    assets) any  corporation,  partnership  or other  business  organization  or
    division  thereof; (ii) incur  any indebtedness for  borrowed money or issue
    any debt  securities or  assume, guarantee  or endorse  or otherwise  as  an
    accommodation become responsible for, the obligations of any person, or make
    any  loans or advances except to employees in the ordinary course consistent
    with past practice;  (iii) enter  into or  amend any  contract or  agreement
    other  than in the ordinary  course of business; (iv)  authorize or make any
    capital  expenditures  or  purchase  of  fixed  assets  which  are,  in  the
    aggregate,  in  excess of  the amount  specified in  Section 3.08(g)  of the
    Company Disclosure Schedule for the Company and its subsidiaries, taken as a
    whole; PROVIDED, HOWEVER, that no more than one half of such amount shall be
    made or firmly committed prior to June 30, 1996, and, PROVIDED, FURTHER that
    the Company  will  give  Parent prior  notice  of  the making  or  the  firm
    commitment  of more than  $5 million of capital  expenditure in any calendar
    quarter; (v) terminate any  Material Contract or amend  any of its  material
    terms  (other than  amendments to  existing credit  arrangements designed to
    remedy defaults  thereunder); or  (vi)  enter into  or amend  any  contract,
    agreement, commitment or arrangement to effect any of the matters prohibited
    by this Section 5.01(g);
 
                                       23
<PAGE>
        (h)  increase  the  compensation payable  or  to become  payable  to its
    officers or employees,  or grant  any severance  or termination  pay to,  or
    enter  into any employment or severance agreement with any director, officer
    or other  employee of  the Company  or  any of  its subsidiaries  except  in
    accordance  with  the  policies  and procedures  described  in  ANNEX  B, or
    establish, adopt,  enter  into  or  amend  any  Employee  Plan  (other  than
    amendments required pursuant to Section 6.06);
 
        (i)  take  any  action,  other  than  as  required  by  GAAP,  to change
    accounting policies or procedures or cash maintenance policies or procedures
    (including,  without  limitation,   procedures  with   respect  to   revenue
    recognition,  capitalization  of  development  costs,  payments  of accounts
    payable and collection of accounts receivable);
 
        (j)  make any material Tax election inconsistent with past practices  or
    settle  or  compromise any  material federal,  state,  local or  foreign tax
    liability or  agree to  an extension  of a  statute of  limitations for  any
    assessment  of  federal income  tax or  material  state corporate  income or
    franchise tax, except to  the extent the amount  of any such settlement  has
    been reserved for on the Company's most recent SEC Report;
 
        (k) pay, discharge, settle, or satisfy any lawsuits, claims, liabilities
    or  obligations (absolute,  accrued, asserted  or unasserted,  contingent or
    otherwise), other  than  the  payment,  discharge  or  satisfaction  in  the
    ordinary course of business and consistent with past practice of liabilities
    reflected  or reserved against in the financial statements of the Company or
    incurred in  the  ordinary  course  of business  and  consistent  with  past
    practice;
 
        (l)  except as may be  required by law, take  any action to terminate or
    amend any Employee Plan (other than amendments required pursuant to  Section
    6.06);
 
        (m)  permit  any increase  in  the number  of  employees of  the Company
    employed by  the  Company on  the  date hereof  other  than pursuant  to  an
    employee  plan to  be agreed  to by  the Company  and Parent  as promptly as
    practicable after the date hereof acting reasonably and in good faith; or
 
        (n) take, or agree in writing or  otherwise to take, any of the  actions
    described  in Sections 5.01(a) through (m)  above, or any action which would
    make any of the  representations or warranties of  the Company contained  in
    this Agreement untrue or incorrect or prevent the Company from performing or
    cause the Company not to perform its covenants hereunder or result in any of
    the conditions to the Merger set forth herein not being satisfied.
 
    SECTION  5.02.   NO SOLICITATION.   (a) The  Company shall  not, directly or
indirectly, through any officer, director, employee, representative or agent  of
the  Company or any of its subsidiaries,  solicit or encourage (including by way
of  furnishing  information)  the  initiation  of  any  inquiries  or  proposals
regarding  any merger, take-over bid, sale of substantial assets, sale of shares
of capital stock (including  without limitation by way  of a tender or  exchange
offer)  or similar transactions involving the Company or any subsidiaries of the
Company (any of the foregoing inquiries or proposals being referred to herein as
an "ACQUISITION PROPOSAL");  PROVIDED, HOWEVER, that  nothing contained in  this
Agreement  shall prevent the Board from  referring any third party that contacts
the Company  on  an  unsolicited  basis after  the  date  hereof  concerning  an
Alternative  Transaction (as defined in Section 8.03(c)) to this Section 5.02(a)
(provided that Parent is  concurrently notified of  such contact and  referral).
Nothing  contained  in  this Section  5.02(a)  or  any other  provision  of this
Agreement shall prevent the Board, after receiving an opinion of outside counsel
to the effect that the Board is required to do so in order to discharge properly
its fiduciary duties, from considering, negotiating, approving and  recommending
to  the stockholders of the Company an unsolicited bona fide written Acquisition
Proposal which the Board  of Directors of the  Company determines in good  faith
(after  consultation  with  its  financial  advisors)  (i)  would  result  in  a
transaction more favorable  to the Company's  stockholders than the  transaction
contemplated  by this Agreement and (ii) is made by a person financially capable
of consummating such Acquisition Proposal  (any such Acquisition Proposal  being
referred to herein as a "SUPERIOR PROPOSAL").
 
                                       24
<PAGE>
    (b)  The  Company  shall  immediately notify  Parent  after  receipt  of any
Acquisition Proposal or any  request for nonpublic  information relating to  the
Company or any of its subsidiaries in connection with an Acquisition Proposal or
for  access to the properties, books or records of the Company or any subsidiary
by any person or entity that informs the Board that it is considering making, or
has made, an Acquisition  Proposal. Such notice to  Parent shall be made  orally
and  in writing  and shall  indicate in  reasonable detail  the identity  of the
offeror and the terms and conditions of such proposal, inquiry or contact.
 
    (c) If the Board receives a request for material nonpublic information by  a
party  who makes a bone fide Acquisition  Proposal and the Board determines that
such proposal, if  consummated pursuant  to its  terms is  a Superior  Proposal,
then,  and only  in such case,  the Company may,  subject to the  execution of a
confidentiality agreement substantially similar to  that then in effect  between
the  Company and Parent, provide such party with access to information regarding
the Company.
 
    (d) The  Company shall  immediately cease  and cause  to be  terminated  any
existing  discussions or  negotiations with any  parties (other  than Parent and
Merger Sub)  conducted heretofore  with respect  to any  of the  foregoing.  The
Company  agrees  not to  release  any third  party  from any  confidentiality or
standstill agreement to which the Company is a party.
 
    (e) The Company shall ensure that  the officers, directors and employees  of
the  Company and its subsidiaries and any  investment banker or other advisor or
representative retained by the Company  are aware of the restrictions  described
in this Section; and shall be responsible for any breach of this Section 5.02 by
such  bankers, advisors and representatives (PROVIDED, HOWEVER, that the Company
shall not  be  liable  for  any  consequential  damages  with  respect  to  such
breaches).
 
    SECTION 5.03.  CONDUCT OF BUSINESS BY PARENT PENDING THE MERGER.  During the
period  from the date of this Agreement  and continuing until the earlier of the
termination of this Agreement or the Effective Time, Parent covenants and agrees
that, unless the Company shall otherwise agree in writing, Parent shall  conduct
its  business, and cause the businesses of  its subsidiaries to be conducted, in
the ordinary course of  business and consistent with  past practice, other  than
actions  taken by Parent or its subsidiaries in contemplation of the Merger, and
shall not directly  or indirectly do,  or propose  to do, any  of the  following
without the prior written consent of the Company:
 
        (a)  amend  or otherwise  change  Parent's Certificate  of Incorporation
    (other than with respect to immaterial changes thereto), or amend the  terms
    of the Parent Common Stock;
 
        (b)  acquire or agree  to acquire, by merging  or consolidating with, by
    purchasing an equity interest in  or a portion of the  assets of, or by  any
    other  manner, any business or  any corporation, partnership, association or
    other business organization  or division  thereof, or  otherwise acquire  or
    agree  to acquire any assets of any other person, which, in each case, would
    materially  delay   or  prevent   the  consummation   of  the   transactions
    contemplated by this Agreement;
 
        (c)  sell,  transfer, license,  sublicense or  otherwise dispose  of any
    material assets; or
 
        (d) take, or agree in writing or  otherwise to take, any of the  actions
    described  in Section 5.03(a)  through (c) above, or  any action which would
    make any of the  representations or warranties of  Parent contained in  this
    Agreement  untrue or  incorrect or prevent  Parent from  performing or cause
    Parent not to perform its covenants hereunder or would result in any of  the
    conditions to the Merger to be satisfied by Parent not being satisfied.
 
                                   ARTICLE VI
                             ADDITIONAL AGREEMENTS
 
    SECTION  6.01.    PROXY STATEMENT/PROSPECTUS;  REGISTRATION  STATEMENT.   As
promptly as practicable after the execution  of this Agreement, the Company  and
Parent  shall prepare  and file with  the SEC preliminary  proxy materials which
shall   constitute   the    Proxy   Statement   of    the   Company   and    the
 
                                       25
<PAGE>
prospectus  of Parent with  respect to the  Parent Common Stock  to be issued in
connection with  the  Merger. As  promptly  as practicable  after  comments  are
received from the SEC thereon and after the furnishing by the Company and Parent
of  all information  required to  be contained  therein, the  Company and Parent
shall file with the SEC a combined proxy and registration statement on Form  S-4
(or  on such other form as shall be appropriate) relating to the approval of the
Merger by the stockholders of the  Company and shall use all reasonable  efforts
to  cause the Registration  Statement to become effective  as soon thereafter as
practicable. The Proxy Statement shall  include the recommendation of the  Board
in favor of the Merger, subject to the second sentence of Section 5.02(a).
 
    SECTION  6.02.  STOCKHOLDERS' MEETING.  The Company shall in accordance with
Delaware Law and the Company's Certificate of Incorporation and Bylaws call  and
hold  the  Company  Stockholders' Meeting  as  promptly as  practicable  for the
purpose of voting  upon the approval  of the Merger,  PROVIDED that the  Company
shall  not be required  to call or  hold a stockholders  meeting while the Offer
remains outstanding. The Company shall use  its reasonable best efforts to  hold
the Company Stockholders' Meeting as soon as practicable after the date on which
the  Registration Statement becomes effective. Subject to the second sentence of
Section 5.02(a), the Company  shall use its reasonable  best efforts to  solicit
from  its stockholders proxies in favor of the approval of the Merger, and shall
take all other action necessary  or advisable to secure  the vote or consent  of
stockholders required by Delaware Law to obtain such approvals.
 
    SECTION  6.03.   ACCESS  TO INFORMATION;  CONFIDENTIALITY.   Upon reasonable
notice and subject  to restrictions contained  in confidentiality agreements  to
which  such party is subject, the Company and Parent shall each (and shall cause
each of their subsidiaries to)  afford to the officers, employees,  accountants,
counsel  and other representatives  of the other,  reasonable access, during the
period prior to  the Effective Time,  to all its  properties, books,  contracts,
commitments  and records  and, during such  period, the Company  and Parent each
shall (and shall cause  each of their subsidiaries  to) furnish promptly to  the
other  all information concerning its business, properties and personnel as such
other party may reasonably request, and  each shall make available to the  other
the   appropriate  individuals  (including   attorneys,  accountants  and  other
professionals) for discussion of the other's business, properties and  personnel
as  either party may reasonably request.  Each party shall keep such information
confidential in accordance with the terms of the confidentiality agreement dated
December 15,  1996  (the "CONFIDENTIALITY  AGREEMENT")  between Parent  and  the
Company.
 
    SECTION  6.04.  CONSENTS; APPROVALS.  The  Company and Parent shall each use
their best efforts to obtain all consents, waivers, approvals, authorizations or
orders  (including,   without  limitation,   all  United   States  and   foreign
governmental  and regulatory rulings and approvals),  and the Company and Parent
shall make all filings (including,  without limitation, all filings with  United
States  and foreign governmental or  regulatory agencies) required in connection
with the authorization, execution and delivery of this Agreement by the  Company
and Parent and the consummation by them of the transactions contemplated hereby.
 
    SECTION  6.05.    STOCK  OPTIONS.   At  the  Effective  Time,  the Company's
obligations with respect to each outstanding Option, whether vested or unvested,
shall, by  virtue  of this  Agreement  and without  any  further action  of  the
Company,  Parent  or the  holder of  any  Option, be  assumed by  Parent. Unless
otherwise elected by Parent prior to the Effective Time, Parent shall make  such
assumption  in such manner  that Parent (i)  is a corporation  "assuming a stock
option in a transaction to which  Section 424(a) applies" within the meaning  of
Section  424 of the Code or (ii) to the extent that Section 424 of the Code does
not apply to such Option,  would be such a corporation  were Section 424 of  the
Code  applicable to  such Option;  and, if not  so otherwise  elected, after the
Effective Time, all references to the Company in the Stock Option Plans and  the
applicable  stock option  agreements shall be  deemed to refer  to Parent, which
shall have assumed the Stock Option Plans as of the Effective Time by virtue  of
this  Agreement and without any further action. Each Option so assumed by Parent
under this Agreement shall continue to have,  and be subject to, the same  terms
and  conditions set forth in the applicable Stock Option Plan and the applicable
stock option agreement  as in effect  immediately prior to  the Effective  Time,
except  that (i) such  Option will be  exercisable for that  number of shares of
 
                                       26
<PAGE>
Parent Common Stock  equal to the  product of  the number of  shares of  Company
Common  Stock that were  purchasable under such Option  immediately prior to the
Effective Time multiplied by 1.0, subject  to adjustment in the manner  provided
for  in Section  2.06(e), rounded up  to the  nearest whole number  of shares of
Parent Common Stock, and  (ii) the per  share exercise price  for the shares  of
Parent  Common Stock issuable upon exercise of such assumed Option will be equal
to the quotient determined by dividing  the exercise price per share of  Company
Common  Stock  at which  such Option  was exercisable  immediately prior  to the
Effective Time  by 1.0,  subject to  adjustment in  the manner  provided for  in
Section  2.06(e), and  rounding the resulting  exercise price up  to the nearest
whole cent. Parent shall use its  best efforts to ensure, that Options  intended
to qualify as incentive stock options under Section 422 of the Code prior to the
Effective Time continue to so qualify after the Effective Time.
 
    SECTION 6.06.  COMPANY STOCK PURCHASE PLAN.  (a) The Company shall take such
actions  as are necessary to cause the  "exercise date" (referred to as the last
day of the "Purchase Period", as such term is used in the Company Stock Purchase
Plan) applicable to the then current Purchase Period to be the last trading  day
on  which the  Company Common  Stock is  traded on  the New  York Stock Exchange
immediately prior to  the Effective  Time (the "FINAL  COMPANY PURCHASE  DATE");
PROVIDED, THAT, such change in the "exercise date" shall be conditioned upon the
consummation  of the  Merger. On  the Final  Company Purchase  Date, the Company
shall apply the funds credited as of such date under the Company Stock  Purchase
Plan  within each participant's payroll withholdings  account to the purchase of
whole shares of Company Common Stock in accordance with the terms of the Company
Stock Purchase Plan. The cost to each participant in the Company Stock  Purchase
Plan for shares of Company Common Stock shall be the lower of 85% of the closing
sale  price of Company Common Stock, as  reported on the New York Stock Exchange
composite tape (as published in THE WALL STREET JOURNAL) on (i) the first day of
the then current Purchase Period or (ii) the last trading day on or prior to the
Final Company Purchase Date.
 
    (b) Employees of the Company as of the Effective Time shall be permitted  to
participate  in Parent's  Employee Stock Purchase  Plan commencing  on the first
enrollment date following  the Effective  Time, subject to  compliance with  the
eligibility  provisions  of  such  plan (with  employees  receiving  credit, for
purposes of such eligibility provisions, for service with the Company).
 
    SECTION 6.07.  EMPLOYMENT MATTERS.  (a) The Surviving Corporation and Parent
shall honor the terms and provisions in the Employment Agreement, dated May  27,
1995, between J. Phillip Samper and the Company.
 
    (b)  As contemplated  by Section 3.04(d),  the Parachute Plans  shall not be
applicable to  the Surviving  Corporation or  Parent after  consummation of  the
transactions   contemplated   hereby.  Parent   currently  intends   to  employ,
immediately after  the Offer,  a substantial  portion of  the employees  of  the
Company.  Parent,  Merger  Sub  and  the Company  agree  that  the  policies and
procedures specified  on  Annex  B  shall  apply  for  the  twelve-month  period
following the closing of the Offer.
 
    SECTION  6.08.   AGREEMENTS  OF AFFILIATES.   The  Company shall  deliver to
Parent, prior to the date the Registration Statement becomes effective under the
Securities Act, a letter  (the "AFFILIATE LETTER")  identifying all persons  who
are,  or may be deemed to be, at the time of the Company Stockholders' Meetings,
"affiliates" of the Company for purposes  of Rule 145 under the Securities  Act.
The Company shall use its best efforts to cause each person who is identified as
an  "affiliate"  in the  Affiliate Letter  to  deliver to  Parent, prior  to the
Effective Time, a written agreement (an "AFFILIATE AGREEMENT") in  substantially
the form of Annex C hereto.
 
    SECTION 6.09.  INDEMNIFICATION.  (a) The Certificate of Incorporation of the
Surviving   Corporation   shall   contain  the   provisions   with   respect  to
indemnification set forth in the Certificate of Incorporation and By-Laws of the
Company, 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 at the Effective  Time
were  directors or officers of the Company, unless such modification is required
by law.
 
                                       27
<PAGE>
    (b) The Company shall, to the fullest extent permitted under applicable  law
or under the Company's Certificate of Incorporation or By-Laws and regardless of
whether the Merger becomes effective, indemnify and hold harmless, and after the
Effective  Time,  the Surviving  Corporation and  Parent  shall, to  the fullest
extent permitted under applicable law  or under the Surviving Corporation's  and
Parent's, as the case may be, Certificate of Incorporation or By-Laws, indemnify
and  hold  harmless, each  director and  officer of  the Company  or any  of its
subsidiaries (collectively,  the "INDEMNIFIED  PARTIES")  against any  costs  or
expenses (including attorneys' fees), judgments, fines, losses, claims, damages,
liabilities and amounts paid in settlement in connection with any claim, action,
suit,  proceeding or  investigation, whether civil,  criminal, administrative or
investigative, arising out of  or pertaining to any  action or omission by  such
director or officer by virtue of their holding the office of director or officer
occurring  at or prior to the Effective Time (including, without limitation, the
transactions contemplated by this Agreement) for a period of six years after the
Effective Time. In  the event  of any such  claim, action,  suit, proceeding  or
investigation  (whether arising  before or  after the  Effective Time),  (i) any
counsel retained by the Indemnified Parties  for any period after the  Effective
Time  shall be reasonably  satisfactory to the  Surviving Corporation and Parent
and (ii) neither the  Surviving Corporation nor Parent  shall be liable for  any
settlement  effected without  its written  consent (which  consent shall  not be
unreasonably withheld).
 
    SECTION 6.10.   NOTIFICATION OF  CERTAIN MATTERS.   The  Company shall  give
prompt  notice to Parent, and Parent shall give prompt notice to the Company, of
(i)  the  occurrence,  or  non-occurrence,  of  any  event  the  occurrence,  or
non-occurrence, of which would be likely to cause any representation or warranty
contained  in this Agreement to be untrue  or inaccurate and (ii) any failure of
the Company, Parent or Merger Sub, as the case may be, materially to comply with
or satisfy any covenant, condition or agreement to be complied with or satisfied
by it hereunder; PROVIDED, HOWEVER, that the delivery of any notice pursuant  to
this  Section  shall  not  limit  or  otherwise  affect  the  remedies available
hereunder to the party receiving such notice; and PROVIDED, FURTHER that failure
to give  such notice  shall not  be  treated as  a breach  of covenant  for  the
purposes  of Sections 7.02(a) and 7.03(a) unless the failure to give such notice
results in material prejudice to the other party.
 
    SECTION 6.11.  FURTHER ACTION.  Upon the terms and subject to the conditions
hereof, each of  the parties  hereto in good  faith shall  use all  commercially
reasonable  efforts to  take, or cause  to be taken,  all actions and  to do, or
cause to be done, all other things necessary, proper or advisable to  consummate
and  make effective as promptly as  practicable the transactions contemplated by
this Agreement, to obtain in a timely manner all necessary waivers, consents and
approvals and  to  effect  all  necessary  registrations  and  filings,  and  to
otherwise  satisfy  or cause  to be  satisfied all  conditions precedent  to its
obligations under this Agreement.
 
    SECTION 6.12.  PUBLIC ANNOUNCEMENTS.   Parent and the Company shall  consult
with  each other before issuing any press release or otherwise making any public
statements with respect to the Merger or this Agreement and shall not issue  any
such  press release or make any such  public statement without the prior consent
of the other party, which shall not be unreasonably withheld; PROVIDED, HOWEVER,
that a party may, without the prior consent of the other party, issue such press
release or make  such public  statement as  may upon  the advice  of counsel  be
required  by law or  the NYSE if it  has used all  reasonable efforts to consult
with the other party.
 
    SECTION 6.13.   LISTING  OF PARENT  COMMON  SHARES.   Parent shall  use  its
reasonable  best efforts to cause the shares of Parent Common Stock to be issued
in the  Merger,  upon  exercise  of  the Options  and  upon  conversion  of  the
Convertible Debentures,to be approved for listing on the NYSE.
 
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<PAGE>
                                  ARTICLE VII
                            CONDITIONS TO THE MERGER
 
    SECTION  7.01.    CONDITIONS  TO  OBLIGATION OF  EACH  PARTY  TO  EFFECT THE
MERGER.  The respective obligations of each party to effect the Merger shall  be
subject  to the satisfaction at or prior  to the Effective Time of the following
conditions:
 
        (a)   EFFECTIVENESS OF  THE REGISTRATION  STATEMENT.   The  Registration
    Statement shall have been declared effective by the SEC under the Securities
    Act.  No  stop  order  suspending  the  effectiveness  of  the  Registration
    Statement shall have  been issued  by the SEC  and no  proceedings for  that
    purpose  and no similar  proceeding in respect of  the Proxy Statement shall
    have been initiated or threatened by the SEC;
 
        (b)  STOCKHOLDER  APPROVAL.  This  Agreement and the  Merger shall  have
    been  approved and adopted by the requisite  vote of the stockholders of the
    Company;
 
        (c)  HSR ACT.  The waiting period applicable to the consummation of  the
    Merger under the HSR Act shall have expired or been terminated;
 
        (d)  NO INJUNCTIONS OR RESTRAINTS; ILLEGALITY.  No temporary restraining
    order,  preliminary or  permanent injunction  or other  order issued  by any
    court of competent jurisdiction or other similar binding legal restraint  or
    prohibition  (an  "INJUNCTION") preventing  the  consummation of  the Merger
    shall be in effect, nor shall  any proceeding brought by any  administrative
    agency  or commission  or other  governmental authority  or instrumentality,
    domestic or foreign,  seeking any  of the  foregoing be  pending; and  there
    shall  not be any  action taken, or  any statute, rule,  regulation or order
    enacted, entered, enforced or deemed  applicable to the Merger, which  makes
    the consummation of the Merger illegal;
 
        (e)  NYSE LISTING.  The Parent Common Shares to be issued in the Merger,
    upon  exercise  of  the  Options  and  upon  conversion  of  the Convertible
    Debentures shall  have  been approved  for  listing, subject  to  notice  of
    issuance, on the NYSE; and
 
        (f)  OFFER.  Parent shall have made, or caused to be made, the Offer and
    shall  have purchased,  or caused  to be  purchased, Shares  pursuant to the
    Offer.
 
    SECTION 7.02.   ADDITIONAL CONDITIONS  TO OBLIGATIONS OF  PARENT AND  MERGER
SUB.   The obligations  of Parent and Merger  Sub to effect  the Merger are also
subject to the following conditions:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of the Company contained in this Agreement shall be true and correct in  all
    respects   on  and  as  of  the  Effective  Time,  except  for  (i)  changes
    contemplated by this  Agreement, (ii) those  representations and  warranties
    which  address matters only as of a particular date (which shall remain true
    and correct as  of such date)  and (iii) where  the failure to  be true  and
    correct  would not have a  Material Adverse Effect on  the Company, with the
    same force and effect as if made on and as of the Effective Time;
 
        (b)  AGREEMENTS  AND COVENANTS.   The  Company shall  have performed  or
    complied in all material respects with all agreements and covenants required
    by  this Agreement to be performed or complied with by it on or prior to the
    Effective Time;
 
        (c)   CONSENTS OBTAINED.   All  material consents,  waivers,  approvals,
    authorizations  or orders required to be  obtained, and all filings required
    to be made, by the Company for the authorization, execution and delivery  of
    this  Agreement and the consummation by  it of the transactions contemplated
    hereby shall have been obtained and made by the Company;
 
                                       29
<PAGE>
        (d)    GOVERNMENTAL  ACTIONS.   There  shall not  have  been instituted,
    pending or  threatened any  action or  proceeding (or  any investigation  or
    other  inquiry that  might result  in such an  action or  proceeding) by any
    governmental authority  or  administrative agency  before  any  governmental
    authority,  administrative agency  or court  of competent  jurisdiction, nor
    shall there be in effect any  judgment, decree or order of any  governmental
    authority,  administrative  agency or  court  of competent  jurisdiction, in
    either case,  seeking  to  prohibit  or limit  Parent  from  exercising  all
    material  rights and privileges pertaining to its ownership of the Surviving
    Corporation  or  the  ownership  or  operation  by  Parent  or  any  of  its
    subsidiaries  of all  or a  material portion  of the  business or  assets of
    Parent or any of its subsidiaries, or seeking to compel Parent or any of its
    subsidiaries to dispose of or hold  separate all or any material portion  of
    the  business or assets of Parent or any of its subsidiaries, as a result of
    the Merger or the transactions contemplated by this Agreement;
 
        (e)  MATERIAL ADVERSE CHANGE.   Since the date of this Agreement,  there
    shall  have  been no  change, occurrence  or  circumstance in  the business,
    results  of  operations  or  financial  condition  of  the  Company  or  any
    subsidiary  of the  Company having or  reasonably likely to  have a Material
    Adverse Effect; and
 
        (f)  AFFILIATE AGREEMENTS.  Parent shall have received from each officer
    and director  person  who  is  identified in  the  Affiliate  Letter  as  an
    "affiliate"  of the Company an Affiliate  Agreement, and each such Affiliate
    Agreement shall be in full force and effect.
 
    SECTION 7.03.   ADDITIONAL CONDITIONS  TO OBLIGATION  OF THE  COMPANY.   The
obligation  of the Company to effect the Merger is also subject to the following
conditions:
 
        (a)  REPRESENTATIONS AND WARRANTIES.  The representations and warranties
    of Parent  and Merger  Sub contained  in this  Agreement shall  be true  and
    correct  in all  respects on and  as of  the Effective Time,  except for (i)
    changes contemplated  by  this  Agreement, (ii)  those  representations  and
    warranties  which address matters only as  of a particular date (which shall
    remain true and correct as of such  date) and (iii) failures to be true  and
    correct  that would not have a Material  Adverse Effect on the Company, with
    the same force and effect as if made on and as of the Effective Time;
 
        (b)   AGREEMENTS  AND COVENANTS.    Parent  and Merger  Sub  shall  have
    performed  or  complied in  all material  respects  with all  agreements and
    covenants required by  this Agreement to  be performed or  complied with  by
    them on or prior to the Effective Time;
 
        (c)    CONSENTS OBTAINED.   All  material consents,  waivers, approvals,
    authorizations or orders required to  be obtained, and all filings  required
    to  be made, by Parent  and Merger Sub for  the authorization, execution and
    delivery of this Agreement and the consummation by them of the  transactions
    contemplated  hereby shall have been obtained  and made by Parent and Merger
    Sub; and
 
        (d)  MATERIAL ADVERSE CHANGE.   Since the date of this Agreement,  there
    shall  have  been no  change, occurrence  or  circumstance in  the business,
    results of operations or financial condition of Parent or any subsidiary  of
    Parent having or reasonably likely to have a Material Adverse Effect.
 
                                  ARTICLE VIII
                                  TERMINATION
 
    SECTION  8.01.  TERMINATION.   This Agreement may be  terminated at any time
prior  to  the   Effective  Time,  notwithstanding   approval  thereof  by   the
stockholders of the Company:
 
        (a) by mutual written consent duly authorized by the boards of directors
    of Parent and the Company; or
 
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<PAGE>
        (b)  by either Parent or  the Company if the  Merger shall not have been
    consummated by September 30, 1996 (PROVIDED that the right to terminate this
    Agreement under this  Section 8.01(b) shall  not be available  to any  party
    whose  failure to fulfill  any obligation under this  Agreement has been the
    cause of or resulted in the failure of the Merger to occur on or before such
    date); or
 
        (c) by either Parent or the Company if a court of competent jurisdiction
    or governmental,  regulatory or  administrative agency  or commission  shall
    have  issued a  non-appealable final  order, decree  or ruling  or taken any
    other action, in  each case  having the effect  of permanently  restraining,
    enjoining or otherwise prohibiting the Merger; or
 
        (d)  by Parent, if  the Offer shall  not have been  consummated prior to
    June 30, 1996 (PROVIDED that Parent is not then in material breach  hereof);
    or
 
        (e)  by Parent, if  (i) the Board  shall withdraw, modify  or change its
    recommendation of  this Agreement,  the  Offer or  the  Merger in  a  manner
    adverse  to Parent or shall have resolved to  do so; or (ii) the Board shall
    have taken a "neutral" position  with respect to an Alternative  Transaction
    (as  defined in Section 8.03(c)); or (iii) any person or "group" (other than
    Parent or an affiliate of  Parent) becomes the owner of  20% or more of  the
    outstanding shares of Company Common Stock; or
 
        (f)  by  Parent or  the Company,  upon a  breach of  any representation,
    warranty, covenant or  agreement on the  part of the  Company or Parent  and
    Merger   Sub,  respectively,  set   forth  in  this   Agreement  or  if  any
    representation or  warranty  of  the  Company  or  Parent  and  Merger  Sub,
    respectively,  shall  have  become untrue,  in  either case,  such  that the
    conditions set forth in  Section 7.02(a) or 7.02(b),  or Section 7.03(a)  or
    7.03(b),  would not be satisfied (a "TERMINATING BREACH"), PROVIDED that, if
    such Terminating Breach is curable prior  to the expiration of 30 days  from
    its  occurrence (but in no event later than September 30, 1996) by Parent or
    the Company, as the case may be, through the exercise of its reasonable best
    efforts and  for so  long as  Parent or  the Company,  as the  case may  be,
    continues  to exercise such reasonable best efforts, neither the Company nor
    Parent, respectively,  may  terminate  this  Agreement  under  this  Section
    8.01(f)  until the expiration of such period without such Terminating Breach
    having been cured; or
 
        (g) by  the Company  or Parent,  if  the Board  shall have  resolved  to
    accept, or accepted, a Superior Proposal.
 
    SECTION  8.02.  EFFECT OF  TERMINATION.  In the  event of the termination of
this Agreement pursuant to Section  8.01, this Agreement shall forthwith  become
void  and there shall be no liability on the  part of any party hereto or any of
its affiliates, directors, officers or stockholders  except (i) as set forth  in
Section  8.03 and Section 9.01 hereof, and (ii) nothing herein shall relieve any
party from liability for any willful breach hereof.
 
    SECTION 8.03.  FEES AND EXPENSES.   (a) Except as set forth in this  Section
8.03,  all fees and expenses incurred in  connection with this Agreement and the
transactions contemplated  hereby shall  be  paid by  the party  incurring  such
expenses, whether or not the Merger is consummated.
 
    (b)  The Company  shall pay  Parent a fee  of $25,000,000  (the "FEE"), plus
actual, documented  and  reasonable out-of-pocket  expenses  of Parent,  not  in
excess  of  $2,500,000,  relating  to  the  transactions  contemplated  by  this
Agreement (including,  but  not  limited  to,  fees  and  expenses  of  Parent's
counsel), upon the earliest to occur of the following events:
 
        (i)  the termination  of this  Agreement by  Parent pursuant  to Section
    8.01(e), or by Parent or the Company pursuant to Section 8.01(g); or
 
        (ii) the termination  of this  Agreement by Parent  pursuant to  Section
    8.01(f) after a willful breach by the Company of this Agreement; or
 
                                       31
<PAGE>
       (iii)  the termination  of this Agreement  by Parent  pursuant to Section
    8.01(d), if, at the  time of termination there  has been publicly  announced
    and  not  withdrawn  an  Alternative  Transaction  (as  defined  in  Section
    8.03(c));
 
       (iv) the  consummation  of an  Alternative  Transaction on  or  prior  to
    December 31, 1996.
 
PROVIDED,  HOWEVER,  that  no  Fee or  expense  reimbursement  shall  be payable
pursuant to  this Section  8.03(b) if  Parent or  Merger Sub  shall then  be  in
intentional material breach of its obligations hereunder.
 
    (c)  As  used  herein,  "ALTERNATIVE TRANSACTION"  means  (i)  a transaction
pursuant to which  any person (or  group of  persons) other than  Parent or  its
affiliates  (a "THIRD PARTY") acquires more  than 20% of the outstanding Shares,
whether from the  Company or pursuant  to a  tender offer or  exchange offer  or
otherwise,  (ii) a  merger or other  business combination  involving the Company
pursuant to which  any Third  Party acquires more  than 20%  of the  outstanding
equity securities of the Company or the entity surviving such merger or business
combination  or (iii)  any other transaction  pursuant to which  any Third Party
acquires control of assets  (including for this  purpose the outstanding  equity
securities  of subsidiaries of the Company,  and the entity surviving any merger
or  business  combination  including  any  of  them)  of  the  Company  and  its
subsidiaries  having a  fair market  value equal  to more  than 20%  of the fair
market value of all the assets of  the Company and its subsidiaries, taken as  a
whole,  immediately prior to such transaction;  PROVIDED, HOWEVER, that the term
Alternative Transaction shall  not include  any acquisition of  securities by  a
broker dealer in connection with a bona fide public offering of such securities.
 
    (d)  The Fee payable  pursuant to Section  8.03(b) shall be  paid within one
business day  after  the first  to  occur of  the  events described  in  Section
8.03(b)(i), (ii), (iii) and (iv).
 
                                   ARTICLE IX
                               GENERAL PROVISIONS
 
    SECTION   9.01.      EFFECTIVENESS   OF   REPRESENTATIONS,   WARRANTIES  AND
AGREEMENTS.    Except  as   otherwise  provided  in   this  Section  9.01,   the
representations,  warranties and  agreements of  each party  hereto shall remain
operative and in full force and  effect regardless of any investigation made  by
or on behalf of any other party hereto, any person controlling any such party or
any  of their officers or directors, whether  prior to or after the execution of
this Agreement. The representations, warranties and agreements in this Agreement
shall terminate at the Effective Time or upon the termination of this  Agreement
pursuant  to Section 8.01,  as the case  may be, except  that the agreements set
forth in Section 6.08  shall survive the Effective  Time indefinitely and  those
set   forth  in  Section  8.03   shall  survive  termination  indefinitely.  The
Confidentiality  Agreement  shall  survive  termination  of  this  Agreement  as
provided therein.
 
    SECTION  9.02.  NOTICES.  All notices and other communications given or made
pursuant hereto shall be in writing and shall be deemed to have been duly  given
or  made as of the date delivered or mailed if delivered personally or mailed by
registered or certified mail (postage prepaid, return receipt requested) to  the
parties  at the  following addresses (or  at such  other address for  a party as
shall be specified by like changes  of address shall be effective upon  receipt)
or  sent by electronic transmission, with confirmation received, to the telecopy
number specified below:
 
       (a) If to Parent or Merger Sub:
          Silicon Graphics, Inc.
          2011 North Shoreline Boulevard
          Mail Stop 710
          Mountain View, California 94043-1389
          Telecopier No.: (415) 965-1586
          Attention: Legal Services
 
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<PAGE>
       With a copy to:
          Shearman & Sterling
          555 California Street, Suite 2000
          San Francisco, CA 94104
          Telecopier No.: (415) 616-1199
          Attention: Michael J. Kennedy, Esq.
 
       (b) If to the Company:
          Cray Research, Inc.
          Cray Research Park
          665A Lone Oak Drive
          Eagan, Minnesota 55121
          Telecopier No.: (612) 683-7199
          Attention: General Counsel
 
       With a copy to:
          Proskauer Rose Goetz & Mendelsohn LLP
          1585 Broadway
          New York, NY 10036
          Telecopier No.: (212) 969-2900
          Attention: Daniel R. Kaplan, Esq.
 
    SECTION 9.03.   CERTAIN DEFINITIONS.   For purposes of  this Agreement,  the
term:
 
        (a)   "AFFILIATES"  means a  person that directly or indirectly, through
    one or more intermediaries, controls, is  controlled by, or is under  common
    control with, the first mentioned person; including, without limitation, any
    partnership  or joint  venture in which  the first  mentioned person (either
    alone, or through or  together with any other  subsidiary) has, directly  or
    indirectly, an interest of 10 percent or more;
 
        (b)   "BENEFICIAL  OWNER" with respect  to any shares  of Company Common
    Stock, means a person who shall be deemed to be the beneficial owner of such
    shares (i)  which  such  person  or any  of  its  affiliates  or  associates
    beneficially  owns, directly or indirectly, (ii) which such person or any of
    its affiliates or associates (as such term  is defined in Rule 12b-2 of  the
    Exchange Act) has, directly or indirectly, (A) the right to acquire (whether
    such  right is  exercisable immediately  or subject  only to  the passage of
    time), pursuant to any agreement,  arrangement or understanding or upon  the
    exercise  of consideration rights, exchange  rights, warrants or options, or
    otherwise, or (B) the right to  vote pursuant to any agreement,  arrangement
    or  understanding  or  (iii)  which  are  beneficially  owned,  directly  or
    indirectly, by  any  other persons  with  whom such  person  or any  of  its
    affiliates  or person  with whom  such person  or any  of its  affiliates or
    associates has any agreement, arrangement  or understanding for the  purpose
    of acquiring, holding, voting or disposing of any shares;
 
        (c)  "BUSINESS DAY" means any day other than a day on which banks in San
    Francisco are required or authorized to be closed;
 
        (d)   "CONTROL" (including  the terms "CONTROLLED  BY" and "UNDER COMMON
    CONTROL WITH") means the possession, directly or indirectly or as trustee or
    executor, of the power to direct or cause the direction of the management or
    policies of a person, whether through the ownership of stock, as trustee  or
    executor, by contract or credit arrangement or otherwise;
 
        (e)        when used  in  connection  with  the Company  or  any  of its
    subsidiaries, or Parent or any of its subsidiaries, as the case may be,  the
    term "MATERIAL ADVERSE EFFECT" means any change or effect that, individually
    or  when taken  together with  all other such  changes or  effects that have
 
                                       33
<PAGE>
    occurred prior  to  the date  of  determination  of the  occurrence  of  the
    Material Adverse Effect, is or is reasonably likely to be materially adverse
    to  the  business, operations,  condition  (financial or  otherwise), assets
    (including intangible assets) or liabilities (including, without limitation,
    contingent liabilities) or prospects of the Company and its subsidiaries  or
    Parent  and its subsidiaries,  as the case may  be, in each  case taken as a
    whole;
 
        (f)     "PERSON"   means  an   individual,   corporation,   partnership,
    association,  trust, unincorporated organization, other  entity or group (as
    defined in Section 13(d)(3) of the Exchange Act); and
 
        (g)   "SUBSIDIARY"  or  "SUBSIDIARIES" of  the  Company,  the  Surviving
    Corporation,  Parent or any other person means any corporation, partnership,
    joint venture or  other legal  entity of  which the  Company, the  Surviving
    Corporation,  Parent or such other person, as  the case may be (either alone
    or through  or  together  with  any other  subsidiary),  owns,  directly  or
    indirectly, more than 50% of the stock or other equity interests the holders
    of  which are generally  entitled to vote  for the election  of the board of
    directors or other governing body of such corporation or other legal entity.
 
    SECTION 9.04.   AMENDMENT.   This Agreement may  be amended  by the  parties
hereto  by action taken by or on  behalf of their respective boards of directors
at any time prior to the Effective Time; PROVIDED, HOWEVER, that, after approval
of the Merger by the stockholders of the Company, no amendment may be made which
by law  requires further  approval  by such  stockholders without  such  further
approval.  This Agreement may not be amended  except by an instrument in writing
signed by the parties hereto.
 
    SECTION 9.05.  WAIVER.  At any  time prior to the Effective Time, any  party
hereto  may with respect to  any other party hereto (a)  extend the time for the
performance of any of the obligations or other acts, (b) waive any  inaccuracies
in  the  representations  and warranties  contained  herein or  in  any document
delivered pursuant hereto and (c) waive compliance with any of the agreements or
conditions contained herein. Any such extension or waiver shall be valid if  set
forth  in an instrument  in writing signed by  the party or  parties to be bound
thereby.
 
    SECTION 9.06.  HEADINGS.  The  headings contained in this Agreement are  for
reference  purposes  only  and  shall  not affect  in  any  way  the  meaning or
interpretation of this Agreement.
 
    SECTION 9.07.    SEVERABILITY.   If  any term  or  other provision  of  this
Agreement is invalid, illegal or incapable of being enforced by any rule of law,
or  public policy, all  other conditions and provisions  of this Agreement shall
nevertheless remain in full force  and effect so long  as the economic or  legal
substance  of the transactions contemplated hereby is not affected in any manner
adverse to any party. Upon such  determination that any term or other  provision
is  invalid, illegal  or incapable of  being enforced, the  parties hereto shall
negotiate in good faith to  modify this Agreement so  as to effect the  original
intent  of the parties as closely as possible in an acceptable manner to the end
that transactions contemplated hereby are fulfilled to the extent possible.
 
    SECTION 9.08.   ENTIRE  AGREEMENT.   This Agreement  constitutes the  entire
agreement  and supersedes all prior agreements  and undertakings (other than the
Confidentiality Agreement), both written and oral, among the parties, or any  of
them,  with  respect  to the  subject  matter  hereof and,  except  as otherwise
expressly provided herein, are not intended to confer upon any other person  any
rights or remedies hereunder.
 
    SECTION 9.09.  ASSIGNMENT, MERGER SUB.  This Agreement shall not be assigned
by  operation of law or otherwise, except  that Parent and Merger Sub may assign
all or any  of their rights  hereunder to  any affiliate provided  that no  such
assignment shall relieve the assigning party of its obligations hereunder.
 
    SECTION  9.10.  PARTIES IN  INTEREST.  This Agreement  shall be binding upon
and inure  solely to  the benefit  of each  party hereto,  and nothing  in  this
Agreement,  express  or  implied (including,  without  limitation,  Section 6.07
hereof), is intended to or shall confer upon any other person any right, benefit
 
                                       34
<PAGE>
or remedy of any nature whatsoever under  or by reason of this Agreement,  other
than  Section 6.08 (which is  intended to be for  the benefit of the Indemnified
Parties and may be enforced by such Indemnified Parties).
 
    SECTION 9.11.  FAILURE  OR INDULGENCE NOT WAIVER;  REMEDIES CUMULATIVE.   No
failure  or delay on the part  of any party hereto in  the exercise of any right
hereunder shall  impair  such right  or  be construed  to  be a  waiver  of,  or
acquiescence in, any breach of any representation, warranty or agreement herein,
nor  shall any single  or partial exercise  of any such  right preclude other or
further exercise thereof or of any other right. All rights and remedies existing
under this Agreement  are cumulative  to, and not  exclusive of,  any rights  or
remedies otherwise available.
 
    SECTION  9.12.   GOVERNING LAW.   THIS AGREEMENT  SHALL BE  GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE INTERNAL LAWS OF THE STATE OF DELAWARE.
 
    SECTION 9.13.  COUNTERPARTS.  This Agreement may be executed in one or  more
counterparts, and by the different parties hereto in separate counterparts, each
of  which when executed shall be deemed to be an original but all of which taken
together shall constitute one and the same agreement.
 
    SECTION 9.14.  WAIVER  OF JURY TRIAL.   EACH OF PARENT,  MERGER SUB AND  THE
COMPANY  HEREBY IRREVOCABLY WAIVES, TO THE  FULLEST EXTENT PERMITTED BY LAW, ALL
RIGHTS TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM (WHETHER BASED
UPON CONTRACT, TORT OR OTHERWISE) ARISING  OUT OF OR RELATING TO THIS  AGREEMENT
OR ANY OF THE TRANSACTIONS CONTEMPLATED HEREBY.
 
    IN  WITNESS WHEREOF,  Parent, Merger  Sub and  the Company  have caused this
Agreement to be executed as of the date first written above by their  respective
officers thereunto duly authorized.
 
                                          SILICON GRAPHICS, INC.
                                          By        /s/ Thomas A. Jermoluk
 
                                             -----------------------------------
                                             Name: Thomas A. Jermoluk
                                             Title:  President and Chief
                                             Operating Officer
 
                                          C ACQUISITION CORPORATION
                                          By        /s/ Thomas A. Jermoluk
 
                                             -----------------------------------
                                             Name: Thomas A. Jermoluk
                                             Title:  President
 
                                          CRAY RESEARCH, INC.
                                          By        /s/ J. Phillip Samper
 
                                             -----------------------------------
                                             Name: J. Phillip Samper
                                             Title:  Chairman and Chief
                                             Executive Officer
 
                                       35
<PAGE>
                                                                         ANNEX A
 
                            CONDITIONS TO THE OFFER
 
    Notwithstanding  any other provision  of the Offer, subject  to the terms of
the Merger Agreement, Merger Sub shall not be required to accept for payment  or
pay  for any Shares tendered  pursuant to the Offer,  and may terminate or amend
the Offer and may postpone the acceptance for payment of and payment for  Shares
tendered,  if (i) the Minimum Condition shall  not have been satisfied, (ii) any
applicable waiting  period under  the HSR  Act shall  not have  expired or  been
terminated  prior to  the expiration of  the Offer, or  (iii) at any  time on or
after the date of  this Agreement, and  prior to the  acceptance for payment  of
Shares, any of the following conditions shall exist:
 
        (a)  there shall  have been instituted  or be pending  or threatened any
    action or proceeding by any governmental or quasi-governmental authority  or
    agency,   domestic   or   foreign,  before   any   court   or  governmental,
    administrative or regulatory authority or agency, of competent jurisdiction,
    domestic or foreign, (i) challenging or seeking to make illegal,  materially
    delay  or  otherwise directly  or indirectly  restrain  or prohibit  or make
    materially more costly the making of  the Offer, the acceptance for  payment
    of,  or payment for, any Shares by Parent, Merger Sub or any other affiliate
    of Parent,  or the  consummation of  any other  Transaction, or  seeking  to
    obtain  material damages in connection with any Transaction; (ii) seeking to
    prohibit or  limit materially  the ownership  or operation  by the  Company,
    Parent  or any of their  subsidiaries of all or  any material portion of the
    business or assets of the Company,  Parent or any of their subsidiaries,  or
    to  compel the Company, Parent or any of their subsidiaries to dispose of or
    hold separate all or any material portion  of the business or assets of  the
    Company,   Parent  or  any  of  their  subsidiaries,  as  a  result  of  the
    Transactions; (iii) seeking to impose or confirm material limitations on the
    ability of Parent, Merger Sub or  any other affiliate of Parent to  exercise
    effectively  full  rights of  ownership  of any  Shares,  including, without
    limitation, the right to vote any Shares acquired by Merger Sub pursuant  to
    the  Offer or otherwise  on all matters properly  presented to the Company's
    stockholders, including, without  limitation, the approval  and adoption  of
    this  Agreement and  the transactions  contemplated hereby;  (iv) seeking to
    require divestiture by Parent, Merger Sub  or any other affiliate of  Parent
    of any Shares; or (v) which otherwise has a Material Adverse Effect or which
    is   reasonably  likely   to  materially  adversely   affect  the  business,
    operations,  properties,  condition  (financial  or  otherwise),  assets  or
    liabilities  (including,  without  limitation,  contingent  liabilities)  or
    prospects of the Company or Parent;
 
        (b) there  shall have  been  any action  taken,  or any  statute,  rule,
    regulation,  legislation,  interpretation,  judgment,  order  or  injunction
    enacted,  entered,  enforced,   promulgated,  amended,   issued  or   deemed
    applicable  to (i)  Parent, the  Company or  any subsidiary  or affiliate of
    Parent or the  Company or  (ii) any  Transaction, by  any legislative  body,
    court, government or governmental, administrative or regulatory authority or
    agency,  domestic  or foreign,  other than  the  routine application  of the
    waiting period provisions of the HSR Act  to the Offer or the Merger,  which
    is  reasonably likely in  the good faith  judgment of the  Parent to result,
    directly or indirectly, in  any of the consequences  referred to in  clauses
    (i) through (v) of paragraph (a) above;
 
        (c)  after  February 25,  1996, there  shall  have occurred  any change,
    condition, event or development  that has a Material  Adverse Effect on  the
    Company;
 
        (d)  there  shall  have  occurred  (i)  any  general  suspension  of, or
    limitation on  prices  for,  trading  in securities  on  the  NYSE,  (ii)  a
    declaration of a banking moratorium or any suspension of payments in respect
    of  banks  in the  United States,  (iii) a  commencement of  a war  or armed
    hostilities or other national or international crisis directly or indirectly
    involving the United  States or (iv)  in the  case of any  of the  foregoing
    existing  on the  date hereof, in  the good  faith judgment of  the Parent a
    material acceleration or worsening thereof;
 
                                      A-1
<PAGE>
        (e) (i) it shall have been  publicly disclosed or Merger Sub shall  have
    otherwise  learned that beneficial ownership (determined for the purposes of
    this paragraph as  set forth in  Rule 13d-3 promulgated  under the  Exchange
    Act)  of 20% or more of the then outstanding Shares has been acquired by any
    person, other than Parent or any of its affiliates or (ii) (A) the Board  or
    any  committee thereof shall have withdrawn  or modified in a manner adverse
    to Parent or  Merger Sub the  approval or recommendation  of the Offer,  the
    Merger  or the  Merger Agreement,  or approved  or recommended  any takeover
    proposal or any  other acquisition of  Shares other than  the Offer and  the
    Merger  or (B) the Board or any  committee thereof shall have resolved to do
    any of the foregoing;
 
        (f) any  representation  or  warranty  of  the  Company  in  the  Merger
    Agreement which is qualified as to materiality shall not be true and correct
    or any such representation or warranty that is not so qualified shall not be
    true  and  correct  in  any  material  respect,  in  each  case  as  if such
    representation or warranty was made as of such time on or after the date  of
    the  Merger Agreement,  except for  (i) changes  contemplated by  the Merger
    Agreement, (ii) those representations  and warranties which address  matters
    only as of a particular date (which shall remain true and correct as of such
    date)  and (iii) where the  failure to be true and  correct would not have a
    Material Adverse Effect on the Company;
 
        (g) the Company shall have failed to perform in any material respect any
    obligation or  to comply  in  any material  respect  with any  agreement  or
    covenant  of the Company  to be performed  or complied with  by it under the
    Merger Agreement;
 
        (h) the Merger Agreement shall have been terminated; or
 
        (i) Merger Sub and the Company  shall have agreed that Merger Sub  shall
    terminate the Offer or postpone the acceptance for payment of or payment for
    Shares thereunder;
 
which, in the reasonable good faith judgment of Merger Sub in any such case, and
regardless  of the circumstances (including any  action or inaction by Parent or
any of its affiliates) 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 Merger Sub and Parent
and may be  asserted by  Merger Sub or  Parent regardless  of the  circumstances
giving  rise to any such condition  or may be waived by  Merger Sub or Parent in
whole or in part at any time and from time to time in their sole discretion. The
failure by Parent or  Merger Sub at  any time to exercise  any of the  foregoing
rights  shall not be deemed a  waiver of any such right;  the waiver of any such
right with respect  to particular  facts and  other circumstances  shall not  be
deemed a waiver with respect to any other facts and circumstances; and each such
right shall be deemed an ongoing right that may be asserted at any time and from
time to time.
 
                                      A-2
<PAGE>
                                                                         ANNEX B
 
                            CERTAIN EMPLOYEE MATTERS
                            POLICIES AND PROCEDURES
 
<TABLE>
<S>        <C>                      <C>
I.         GENERAL:                 In general, the Surviving Corporation shall offer severance
                                    benefits as provided in the Cray Research, Inc. 1995 Amended
                                    and Restated Severance Pay Plan for Cray Research, Inc. (the
                                    "EXISTING PLAN").
 
II.        BASE PAYMENTS:           Employees whose employment is terminated for one of the
                                    reasons described in Section III (ii) below shall be entitled
                                    to the following payments:
 
                                    (i)  EXECUTIVE OFFICERS (defined as Robert H. Ewald, Laurence
                                    L. Betterley, Irene M. Qualters and Michael R. Dungworth)
                                         shall be entitled to a lump sum cash payment equal to two
                                         times such Executive Officer's Base Pay;
 
                                    (ii)  OFFICERS AND OFFICER EQUIVALENTS (defined consistent
                                    with the Company's existing internal designation consisting of
                                          approximately 50 people) shall be entitled to a lump sum
                                          cash payment equal to one times such Officer's and
                                          Officer Equivalent's Base Pay; and
 
                                    (iii)  ALL OTHER EMPLOYEES (including part-time employees)
                                    shall be entitled to a lump sum cash payment calculated and
                                           payable pursuant to Section C of the Existing Plan
                                           plus, to the extent consistent with the Company's most
                                           recent reduction in force, an additional per individual
                                           payment not to exceed two months' Base Pay agreed upon
                                           by Parent and the Company acting reasonably and in good
                                           faith.
 
III.       OTHER BENEFITS:          Other severance benefits shall be offered as provided in the
                                    Existing Plan (including, without limitation, payment for
                                    accrued and unused personal time), subject to the following:
 
                                    (i)  in all cases where relevant, the provision of health,
                                    life, disability and COBRA benefits (provided that, for the
                                         purposes of COBRA, Parent shall pay for three months of
                                         the employee's portion of the cost of such terminated
                                         employee's medical insurance prior to the date of such
                                         employee's termination) as offered by Parent to its
                                         employees shall be deemed to satisfy the requirements of
                                         the Existing Plan; and
 
                                    (ii)  termination shall mean elimination of a person's job,
                                          termination without cause and resignation for "good
                                          reason," which shall include only the following: (i) 15%
                                          or more reduction in a person's Base Pay or (ii)
                                          relocation more than 35 miles from a person's then
                                          current work location.
 
IV.        PERFORMANCE              These policies and procedures shall not apply to terminations
           EVALUATIONS:             in connection with normal cause performance evaluations.
</TABLE>
 
                                      B-1
<PAGE>
<TABLE>
<S>        <C>                      <C>
V.         BASE PAY:                Means all regular straight time earnings, exclusive of payment
                                    for overtime, shift premiums, incentive compensation,
                                    incentive payments, bonuses, commissions or other
                                    compensation.
 
VI.        COMMUNICATIONS:          Between the date hereof and consummation of the Offer, Parent
                                    and Company shall co-ordinate communications regarding these
                                    policies and procedures to Company employees
</TABLE>
 
                                      B-2
<PAGE>
                                                                         ANNEX C
 
                          FORM OF AFFILIATE AGREEMENT
 
                                                                          , 1996
 
Silicon Graphics, Inc.
2011 N. Shoreline Blvd.
Mail Stop 710
Mountain View, CA 94043-1389
Attention: Legal Services
Ladies and Gentlemen:
 
    Pursuant  to  the terms  of the  Agreement and  Plan of  Merger dated  as of
February 25, 1996 (the  "AGREEMENT"), among Silicon  Graphics, Inc., a  Delaware
corporation  ("PARENT"), C  Acquisition Corporation, a  Delaware corporation and
wholly owned subsidiary  of Parent ("MERGER  SUB"), and Cray  Research, Inc.,  a
Delaware  corporation (the "COMPANY"),  Parent will acquire  the Company through
the merger of Merger Sub  with and into the  Company (the "MERGER"). Subject  to
the  terms and conditions of the Agreement, at the Effective Time (as defined in
the Agreement), outstanding  shares of  the common  stock, par  value $1.00  per
share,  of the Company ("COMPANY COMMON STOCK") will be converted into the right
to receive shares of  the common stock,  par value $0.001  per share, of  Parent
("PARENT  COMMON STOCK"), and, in certain events, cash on the basis described in
the Agreement.
 
    The undersigned has been advised  that as of the date  hereof he, she or  it
may  be deemed to be  an "affiliate" of the Company,  as the term "affiliate" is
defined for purposes  of paragraphs (c)  and (d) of  Rule 145 of  the Rules  and
Regulations  (the  "RULES  AND  REGULATIONS")  of  the  Securities  and Exchange
Commission (the "COMMISSION") under the Securities Act of 1933, as amended  (the
"ACT").
 
    The   undersigned  understands  that  the  representations,  warranties  and
covenants set  forth herein  will  be relied  upon  by Parent,  stockholders  of
Parent,  the Company,  other stockholders  of the  Company and  their respective
counsel and accountants.
 
    The undersigned represents and warrants to and agrees with Parent that:
 
     1. The undersigned  has full power  to execute and  deliver this  Affiliate
Agreement  and to make the representations  and warranties herein and to perform
its obligations hereunder.
 
     2. The undersigned  has carefully read  this letter and  the Agreement  and
discussed its requirements and other applicable limitations upon his, her or its
ability  to sell, transfer  or otherwise dispose  of Parent Common  Stock to the
extent the undersigned felt necessary, with  his, her or its counsel or  counsel
for the Company.
 
     3.  The undersigned shall not make  any sale, transfer or other disposition
of Parent Common Stock in violation of the Act or the Rules and Regulations.
 
     4. The undersigned has been advised  that the issuance of shares of  Parent
Common  Stock to the undersigned in connection  with the Merger has been or will
be registered with the Commission under  the Act on a Registration Statement  on
Form S-4. However, the undersigned has also been advised that, since at the time
the  Merger was  or will  be submitted  for a  vote of  the stockholders  of the
Company the undersigned may be deemed to  have been an affiliate of the  Company
and  the distribution by the undersigned of any Parent Common Stock has not been
registered under the Act,  the undersigned may not  sell, transfer or  otherwise
dispose  of Parent Common Stock  issued to the undersigned  in the Merger unless
(i) such sale, transfer or other disposition has been registered under the  Act,
(ii)  such sale, transfer  or other disposition  is made in  conformity with the
requirements of Rule 145 promulgated by  the Commission under the Act, or  (iii)
in  the opinion of counsel reasonably  acceptable to Parent, such sale, transfer
or other disposition is otherwise exempt from registration under the Act.
 
                                      C-1
<PAGE>
     5. Parent is under  no obligation to register  the sale, transfer or  other
disposition  of Parent  Common Stock by  the undersigned  or on his,  her or its
behalf under the  Act or to  take any other  action necessary in  order to  make
compliance with an exemption from such registration available.
 
     6. Stop transfer instructions will be given to Parent's transfer agent with
respect  to  the  Parent Common  Stock  and that  there  will be  placed  on the
certificates for  the Parent  Common Stock  issued to  the undersigned,  or  any
substitutions therefor, a legend stating in substance:
 
        "THE SHARES REPRESENTED BY THIS CERTIFICATE WERE ISSUED IN A TRANSACTION
    TO  WHICH RULE 145 PROMULGATED UNDER THE SECURITIES ACT OF 1933 APPLIES. THE
    SHARES REPRESENTED BY THIS CERTIFICATE MAY ONLY BE TRANSFERRED IN ACCORDANCE
    WITH THE  TERMS  OF  AN  AGREEMENT  DATED  FEBRUARY  25,  1996  BETWEEN  THE
    REGISTERED  HOLDER  HEREOF  AND  SILICON GRAPHICS,  INC.,  A  COPY  OF WHICH
    AGREEMENT IS ON FILE AT THE PRINCIPAL OFFICES OF SILICON GRAPHICS, INC."
 
     7. Unless the transfer by the undersigned of his, her or its Parent  Common
Stock has been registered under the Act or is a sale made in conformity with the
provisions of Rule 145, Parent reserves the right to put the following legend on
the certificates issued to any transferee of the undersigned:
 
        "THE  SHARES REPRESENTED  BY THIS  CERTIFICATE HAVE  NOT BEEN REGISTERED
    UNDER THE  SECURITIES  ACT OF  1933  AND WERE  ACQUIRED  FROM A  PERSON  WHO
    RECEIVED  SUCH SHARES IN  A TRANSACTION TO WHICH  RULE 145 PROMULGATED UNDER
    THE SECURITIES ACT  OF 1933 APPLIES.  THE SHARES HAVE  BEEN ACQUIRED BY  THE
    HOLDER  NOT  WITH  A  VIEW  TO,  OR  FOR  RESALE  IN  CONNECTION  WITH,  ANY
    DISTRIBUTION THEREOF WITHIN THE  MEANING OF THE SECURITIES  ACT OF 1933  AND
    MAY  NOT BE  SOLD, PLEDGED  OR OTHERWISE  TRANSFERRED EXCEPT  PURSUANT TO AN
    EFFECTIVE REGISTRATION STATEMENT OR IN ACCORDANCE WITH AN EXEMPTION FROM THE
    REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OF 1933."
 
     8. The legends set forth  in paragraphs 6 and 7  above shall be removed  by
delivery of substitute certificates without such legend if the undersigned shall
have delivered to Parent a copy of a letter from the staff of the Commission, or
an  opinion of counsel in form  and substance reasonably satisfactory to Parent,
to the effect that such legend is not required for purposes of the Act.
 
     9. The undersigned  is the beneficial  owner of (i.e.,  has sole or  shared
voting  or investment power  with respect to)  all the shares  of Company Common
Stock and options to  purchase Company Common Stock  indicated on the last  page
hereof  (the  "Company  Securities").  Except for  the  Company  Securities, the
undersigned does not beneficially own any shares of Company Common Stock or  any
other  equity securities of the Company or any options, warrants or other rights
to acquire any equity securities of the Company.
 
    10. The undersigned intends to vote all Company Common Stock held by him  or
her  on the record date for the stockholders' meeting to be held to consider the
Merger in favor of the Merger.
 
    11. The undersigned will not exercise dissenters' rights in connection  with
the Merger.
 
                                      C-2
<PAGE>
                    NUMBER OF SHARES OF COMPANY COMMON STOCK
                     BENEFICIALLY OWNED BY THE UNDERSIGNED:
 
                            ------------------------
 
                    NUMBER OF SHARES OF COMPANY COMMON STOCK
               SUBJECT TO OPTIONS, OR ISSUABLE UPON CONVERSION OF
         CONVERTIBLE DEBENTURES, BENEFICIALLY OWNED BY THE UNDERSIGNED:
 
                            ------------------------
 
                                          Very truly yours,
                                          --------------------------------------
                                          (print name of stockholder)
 
                                          By:
                                          --------------------------------------
                                              Name:
                                             Title:
                                             (if applicable)
 
Accepted this     day of
               , 1996, by
SILICON GRAPHICS, INC.
 
By:
- - - - ------------------------------------------
Name:
Title:
 
                                      C-3


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