INTEGRATED SYSTEMS INC
DEF 14A, 1997-06-24
PREPACKAGED SOFTWARE
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                            SCHEDULE 14A INFORMATION
                PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                         (Amendment No. ______________)


Filed by the Registrant    /X/
Filed by a party other than the Registrant   / /

Check the appropriate box:
/ /  Preliminary proxy statement
/ /  Confidential, for use of the Commission only (as permitted by
     Rule 14a-6(e)(2))
/X/  Definitive proxy statement
/ /  Definitive additional materials
/ /  Soliciting material pursuant to Sec. 240.14a-11(c) or Sec. 240.14a-12

                            INTEGRATED SYSTEMS, INC.
                ------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

                            INTEGRATED SYSTEMS, INC.
    ------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)


Payment of filing fee (Check the appropriate box):

/X/  No fee required.
     

/ /  $500 per each party to the controversy pursuant to Exchange Act Rule
     14a-6(i)(3).

/ /  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.


(1)  Title of each class of securities to which transactions applies:

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

(2)  Aggregate number of securities to which transactions applies:

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

(3)  Per unit price or other underlying value of transaction computed
pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing
fee is calculated and state how it was determined):

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

(4)  Proposed maximum aggregate value of transaction:

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

(5)  Total fee paid:

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

/ /  Fee paid previously with preliminary materials.
/ /  Check box if any part of the fee is offset as provided by Exchange Act
     Rule 0-11(a)(2) and identify the filing for which the offsetting fee
     was paid previously.  Identify the previous filing by registration
     statement number, or the Form or Schedule and the date of its filing.

(1)  Amount previously paid:

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

(2)  Form, Schedule or Registration Statement No.:

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

(3)  Filing party:

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

(4)  Date filed:

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


<PAGE>

                                [GRAPHIC OMITTED]


                            INTEGRATED SYSTEMS, INC.
                             201 Moffett Park Drive
                           Sunnyvale, California 94089


                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS



To Our Shareholders:

         NOTICE IS HEREBY  GIVEN that the  Annual  Meeting  of  Shareholders  of
Integrated  Systems,  Inc.  (the  "Company")  will be held at the  Company,  201
Moffett Park Drive, Sunnyvale,  California,  94089 on July 15, 1997 at 2:00 p.m.
for the following purposes:

         1. To elect six directors of the Company to serve until the next Annual
         Meeting of Shareholders and until their respective successors have been
         elected and qualified or until such directors'  earlier  resignation or
         removal.  The Company's  Board of Directors has nominated the following
         candidates:  Narendra K. Gupta,  John C. Bolger,  Vinita Gupta,  Thomas
         Kailath, Richard C. Murphy and David P. St. Charles.

         2. To consider  and vote upon a proposal to amend the 1988 Stock Option
         Plan to increase the number of shares reserved for issuance  thereunder
         by 1,000,000 to a total of 7,000,000 shares.

         3. To ratify the selection of Coopers & Lybrand  L.L.P.  as independent
         accountants for the Company for the current fiscal year.

         4. To  transact  such other  business as may  properly  come before the
         meeting or any adjournments or postponements thereof.

         The foregoing  items of business are more fully  described in the Proxy
Statement accompanying this Notice.

         Only  shareholders  of record at the close of  business on May 23, 1997
are  entitled to notice of and to vote at the meeting  and any  adjournments  or
postponements thereof.

                                        By Order of the Board of Directors

                                        /s/ Narendra K. Gupta
                                        Narendra K. Gupta
                                        Chairman of the Board

Sunnyvale, California
June 16, 1997


================================================================================
             WHETHER OR NOT YOU EXPECT TO ATTEND THE MEETING, PLEASE
                 COMPLETE, DATE AND SIGN THE ACCOMPANYING PROXY
                     AND RETURN IT PROMPTLY IN THE ENCLOSED
                             POSTAGE-PAID ENVELOPE.
================================================================================

<PAGE>


                                [GRAPHIC OMITTED]



                            INTEGRATED SYSTEMS, INC.
                             201 Moffett Park Drive
                           Sunnyvale, California 94089



                                 PROXY STATEMENT



                                  June 16, 1997



         The accompanying proxy is solicited on behalf of the Board of Directors
of Integrated Systems, Inc., a California  corporation (the "Company"),  for use
at the Annual Meeting of  Shareholders of the Company to be held at the Company,
201 Moffett Park Drive,  Sunnyvale,  California,  94089 on July 15, 1997 at 2:00
p.m. (the  "Meeting").  Only holders of record of the Company's  Common Stock at
the close of business  on May 23, 1997 will be entitled to vote at the  Meeting.
At the close of business on that date,  the  Company  had  23,145,870  shares of
Common  Stock  outstanding  and  entitled  to vote.  Shares will be deemed to be
represented at the meeting both where a shareholder  specifically  abstains from
voting and where a broker or other nominee holding shares for beneficial  owners
is able to vote on certain  matters at the  Meeting  pursuant  to  discretionary
authority  or  instruction  from  beneficial  owners  but with  respect to other
matters may not have received instructions from the beneficial owner and may not
exercise voting power ("broker  non-votes").  A majority, or 11,572,936 of these
shares,  represented  in person or by proxy,  will  constitute  a quorum for the
transaction of business.  This Proxy Statement and accompanying proxy will first
be mailed to shareholders on or about June 19, 1997.



             VOTING RIGHTS; SOLICITATION AND REVOCABILITY OF PROXIES

         Holders of Common Stock are entitled to one vote for each share held as
of the above record date.  Any person  signing a proxy in the form  accompanying
this Proxy  Statement  has the power to revoke it prior to the Meeting or at the
Meeting  prior to the vote  pursuant  to the proxy.  A proxy may be revoked by a
writing  delivered  to the  Secretary  of the Company  stating that the proxy is
revoked,  by a  subsequent  proxy  that is signed by the  person  who signed the
earlier  proxy and is presented at the Meeting or by  attendance  at the Meeting
and voting in person.  Please note, however,  that if a shareholder's shares are
held of record by a broker,  bank or other nominee,  and that shareholder wishes
to vote at the Meeting,  the shareholder must bring to the Meeting a letter from
the broker,  bank or other  nominee  confirming  that  shareholder's  beneficial
ownership of the shares.

         The expenses of soliciting  proxies in the form accompanying this Proxy
Statement  will be paid by the Company.  Following  the original  mailing of the
proxies and other  soliciting  materials,  the  Company  will  request  brokers,
custodians, nominees and other record holders to forward copies of the proxy and
other soliciting  materials to persons for whom they hold shares of Common Stock
and to request  authority  for the  exercise  of  proxies.  In such  cases,  the
Company, upon the request of the record holders, will reimburse such holders for
their reasonable expenses.


                                      -1-

<PAGE>


                     PROPOSAL NO. 1 - ELECTION OF DIRECTORS

         At the Meeting,  shareholders will elect directors to hold office until
the next Annual Meeting of Shareholders  and until their  respective  successors
have been elected and qualified or until such directors' earlier  resignation or
removal. The size of the Company's Board of Directors (the "Board") is currently
set at six members.  Shares  represented by the accompanying proxy will be voted
for the election of the six nominees  recommended  by the Board unless the proxy
is marked in such a manner as to withhold  authority so to vote.  If any nominee
for any reason is unable to serve or for good cause will not serve,  the proxies
may be voted for such substitute nominee as the proxy holder may determine.  The
Company is not aware of any nominee who will be unable to or for good cause will
not serve as a director.  Directors  are  elected by a  plurality  of the shares
voting,  in person or by proxy, at the Meeting.  The six nominees  receiving the
highest number of affirmative  votes of the shares entitled to be voted for them
will be elected. Votes withheld,  abstentions and broker non-votes have no legal
effect.

<TABLE>
Directors/Nominees

         The  names  of  the  nominees,   and  certain  information  about  them
(including their respective terms of service), are set forth below:

<CAPTION>
Director
Name of Nominee                  Age           Principal Occupation                       Since
- ---------------                  ---           --------------------                       -----
<S>                              <C>           <C>                                        <C> 
Narendra K. Gupta                48            Chairman of the Board and                  1980
                                                 Secretary of the Company

David P. St. Charles             48            President and Chief Executive Officer      1993
                                                 of the Company

John C. Bolger (1) (2)           50            Retired Chief Financial Officer            1993
                                                 Cisco Systems, Inc.

Vinita Gupta                     46            Chairperson of the Board                   1980
                                                 Digital Link Corporation

Thomas Kailath (1)               61            Professor of Engineering,                  1980
                                                 Stanford University

Richard C. Murphy (1) (2)        52            Director                                   1994
<FN>
- ----------------------------------------
(1)      Member of the Compensation Committee.
(2)      Member of the Audit Committee.
</FN>
</TABLE>

         All  nominees  were  reelected  at  the  Company's  Annual  Meeting  of
Shareholders held on July 17, 1996.

         Dr.  Gupta is a founder of the  Company  and has been a director of the
Company  since its  formation in 1980.  He has been the Chairman of the Board of
the Company since March 1993 and Secretary  since  September 1989. Dr. Gupta was
Chief  Executive  Officer from 1988 to May 1994 and President from the Company's
formation  in 1980 to May 1994.  He was  elected a Fellow  of the  Institute  of
Electrical  and  Electronic  Engineers  ("IEEE") in November  1991. Dr. Gupta is
currently also a director of Digital Link Corporation, a data communications and
wide-area networking equipment  manufacturer,  and Simulation Sciences,  Inc., a
developer of chemical simulation  software.  Dr. Gupta holds an M.S. degree from
the  California  Institute  of  Technology  and a  Ph.D.  degree  from  Stanford
University. He is Vinita Gupta's husband.

         Mr. St.  Charles  joined the Company in August  1993 and was  appointed
President and Chief Executive  Officer of the Company in May 1994. He has been a
director  since he joined  the  Company  in August  1993.  From April 1990 until
August 1993,  Mr. St.  Charles  served as President and a director of Wind River
Systems,  Inc., a real-time  software  company.  Mr. St. Charles holds a B.A. in
Liberal Arts and an M.A. in International Economics from Carleton University and
an M.S. from the Sloan School of Management  at the  Massachusetts  Institute of
Technology.

         Mr.  Bolger  has been a director  of the  Company  since July 1993.  He
served as Vice  President,  Finance and  Administration,  and Secretary of Cisco
Systems,  Inc., a networking software company, from 1989 until his retirement in
1992. Mr. Bolger is currently also a director of Integrated  Device  Technology,
Inc., a semiconductor manufacturer, McAfee Associates, a software company, TCSI,
a  communication  software  company,  and Sanmina  

                                      -2-
<PAGE>


Corporation, a backplane and contract assembly manufacturer.  He holds a B.A. in
English  Literature  from the  University of  Massachusetts  and an M.B.A.  from
Harvard University.

         Mrs.  Gupta has been a director of the Company  since its  formation in
1980. Since May 1985, she has been Chairperson of Digital Link  Corporation.  In
addition,  from May 1985 to September  1996,  Mrs. Gupta served as President and
Chief Executive  Officer of Digital Link  Corporation.  Mrs. Gupta holds an M.S.
degree in Electrical Engineering from the University of California, Los Angeles.
She is Narendra K. Gupta's spouse.

         Dr.  Kailath is a founder of the Company and has been a director of the
Company  since its formation in 1980. He served as Vice Chairman of the Board of
Directors from January 1990 to March 1993 and Chairman of the Board of Directors
from April 1980 to January 1990. He is currently the Hitachi  America  Professor
of  Engineering at Stanford  University,  where he has been on the faculty since
January 1963.  Dr. Kailath is a member of the National  Academy of  Engineering,
the American  Academy of Arts and Sciences and a Fellow of the IEEE. Dr. Kailath
holds M.S. and Sc.D.  degrees in Electrical  Engineering from the  Massachusetts
Institute of Technology.

         Mr. Murphy has been a director of the Company since  December  1994. He
is a self-employed business consultant.  Mr. Murphy is currently also a director
of  Objectivity,  Inc., an object  database  software  company and iXOS Software
Inc., a distributor of image management software.  He holds a B.S. in Mechanical
Engineering  from the  University  of Illinois and an M.B.A.  from  Northwestern
University.

            THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE ELECTION
                      OF EACH OF THE NOMINEES LISTED ABOVE.


Board of Directors' Meetings and Committees

         The Board met five times and acted by  unanimous  written  consent once
during the year ended February 28, 1997. All directors attended every meeting of
the Board  and of the  committees  of the Board  either in person or by phone on
which he or she served.

         Standing  committees  of the Board  include  an Audit  Committee  and a
Compensation  Committee.  The Board does not have a  nominating  committee  or a
committee performing a similar function.

         Mr.  Bolger  and Mr.  Murphy  are  currently  the  members of the Audit
Committee.  The Audit Committee met once during fiscal 1997. The Audit Committee
meets with the Company's  independent  accountants to review the adequacy of the
Company's internal control systems and financial reporting  procedures,  reviews
the general  scope of the  Company's  annual  audit and the fees  charged by the
independent  accountants  and reviews and monitors the  performance of non-audit
services by the Company's independent accountants.

         Mr. Bolger, Mr. Murphy and Dr. Kailath are currently the members of the
Company's Compensation  Committee.  The Compensation Committee met six times and
acted by unanimous  written  consent once during fiscal 1997.  The  Compensation
Committee  administers  the Company's Stock Option Plans and 1990 Employee Stock
Purchase Plan and determines  salaries and other  compensation  for officers and
employees.

         The Company paid Mr.  Bolger,  Mrs.  Gupta,  Dr. Kailath and Mr. Murphy
$16,000 each in directors' fees during fiscal 1997.

         In March 1994 the Board  adopted the 1994  Directors  Stock Option Plan
(the  "Directors  Plan") and reserved a total of 400,000 shares of the Company's
Common Stock for issuance thereunder.  The shareholders approved the adoption of
the Directors  Plan in July 1994.  The Directors Plan provides for the automatic
grant of a nonqualified  stock option to purchase 15,000 shares of the Company's
Common  Stock to each  nonemployee  director who was serving on the Board at the
time of the Board's  adoption of the  Directors  Plan or who becomes a member of
the Board for the first time after the effective date of the Directors  Plan. In
addition,   the  Directors   Plan  provides  for  automatic   annual  grants  of
nonqualified  options to purchase 5,000 shares of the Company's  Common Stock to
each nonemployee director on the anniversary of such director joining the Board,
as long as the optionee  remains a member of the Board.  In accordance  with the
Directors  Plan, the following  options were granted during fiscal 1997: John C.
Bolger was  granted an option to  purchase  5,000  shares of Common  Stock at an
exercise  price of $28.25 per share,  Vinita Gupta and Thomas  Kailath were each
granted an option to purchase  5,000 shares of Common Stock at an exercise price
of $22.75 per share,  and  Richard C.  Murphy was  granted an option to purchase
5,000 shares of Common Stock at an exercise price of $20.75 per share. As of May
23, 1997, options to purchase 170,000 shares had been granted,  5,000 shares had
been issued upon  exercise of options  and  230,000  shares were  available  for
future grants pursuant to the Directors Plan.

                                      -3-

<PAGE>



                  PROPOSAL NO. 2 - APPROVAL OF AN AMENDMENT TO
                             1988 STOCK OPTION PLAN

         Shareholders  are being asked to approve an amendment to the  Company's
1988 Stock  Option Plan (the "1988  Plan") to  increase  the number of shares of
Common  Stock  reserved  for  issuance  thereunder  from  6,000,000 to 7,000,000
shares.  The Board  believes  that  amendment  of the 1988 Plan to increase  the
number of shares of Common  Stock  available  for  issuance  pursuant to options
granted  under  the  1988  Plan is in the best  interests  of the  Company.  The
granting of options under the 1988 Plan plays an important role in the Company's
efforts to attract  and  retain  employees  of  outstanding  ability.  The Board
believes  that an increase of  1,000,000  shares in the reserves  available  for
issuance  pursuant to options granted under the 1988 Plan is necessary to ensure
that the Company can continue to attract and retain  outstanding  employees  and
executive officers as needed.

         The Board approved the proposal amendment  described above on March 28,
1997.  Shareholder  approval of the amendment requires the affirmative vote of a
majority of the shares of Common Stock present in person or represented by proxy
and entitled to vote at the meeting.  Abstentions  have the effect of a negative
vote, but broker non-votes do not affect the calculation.

         Below is a  summary  of the  principal  provisions  of the 1988 Plan as
proposed to be amended.

1988 Plan History

         The 1988 Plan,  which  originally  covered  2,000,000  shares of Common
Stock,  was adopted by the Board and approved by the  shareholders  in September
1988.  Amendments  increasing  the number of shares of Common Stock reserved for
issuance  under  the  1988  Plan  were  adopted  by the  Board in  January  1992
(2,000,000  shares)  and March 1994  (2,000,000  shares),  and  approved  by the
shareholders  in July 1992 and July 1994,  respectively.  In addition,  the 1988
Plan was amended in 1994 to limit the number of shares of Common Stock  issuable
to any optionee under the 1988 Plan, as amended, to 500,000 shares.

         In 1997, to respond to the substantial increase in competitive attempts
to recruit employees  essential to the success of the Company,  the Compensation
Committee  elected to reprice  options.  Competition  for skilled  engineers and
other key employees is intense and the use of significant  options for retention
and motivation of such personnel is pervasive in the high technology industries.
The Compensation Committee believes that options are a critical component of the
compensation  offered  by the  Company  to promote  long-term  retention  of key
employees,   motivate  high  levels  of  performance   and  recognize   employee
contributions  to the success of the Company.  The market price of the Company's
Common Stock decreased  substantially from a high of $41.25 in September 1996 to
$8.75 in April 1997. In light of this  substantial  decline in the market price,
the Compensation  Committee believed that the large numbers of outstanding stock
options  with an  exercise  price in excess of the actual  market  price were no
longer an effective  tool to encourage  employee  retention or to motivate  high
levels of performance.  As a result,  in April 1997, the Compensation  Committee
approved an option repricing program.

         All  employees,   including  executive   officers,   were  eligible  to
participate  under the repricing  program.  All eligible  optionees with options
that were granted under the Company's option plans,  whether vested or unvested,
and that had  exercise  prices  greater  than the  closing  price on the  Nasdaq
National  Market on the date of the  repricing,  had the option to exchange such
options on a  one-for-one  basis.  Options to purchase an aggregate of 1,222,632
shares of Common  Stock were  repriced,  with new exercise  prices  ranging from
$8.75 to $10.50 per share, based on the closing price of the Common Stock on the
Nasdaq National Market on the date individual  employees  agreed to cancel their
original  outstanding  options.  The  vesting  schedule  of the new  options was
adjusted  to begin on the date  individual  employees  agreed  to  cancel  their
original outstanding options, with any prior vesting being forfeited.

         As  of  May  23,  1997,   options  to  purchase  2,910,430  shares  are
outstanding and options for 470,256 shares are available for future grants under
the 1988 Plan. The amendment to the 1988 Plan will enable the Company to attract
senior executives to the Company as needed.

Administration

         The  1988  Plan  is  administered  by a  Committee  of the  Board  (the
"Committee")  consisting  of at  lease  three  members  of  the  Board  who  are
"disinterested  persons" as that term is defined in the 1988 Plan, and, if there
are three or more  "outside  directors"  as that  term is  defined  pursuant  to
Section  162(m) of the Internal  Revenue Code of 1986,  as amended (the "Code"),
each of the members of the Committee must also be an "outside director".

         Subject to the terms of the 1988 Plan,  the  Committee  determines  the
persons who are to receive options,  the number of shares subject to each option
and the  terms  and  conditions  of such  options.  The  Committee  also has the
authority to construe and  interpret  any of the  provisions of the 1988 Plan of
any options granted thereunder.

                                      -4-
<PAGE>


Eligibility

         The 1988 Plan  provides  that the options  may be granted  only to such
employees, officers, and directors and consultants of the Company or any parent,
subsidiary  of  affiliate  of the Company (as such terms are defined in the 1988
Plan) as the Committee may determine (including directors who are also employees
or  consultants)  provided  that only  employees  of the  Company or a parent or
subsidiary  of the Company may receive  incentive  stock options  ("ISO's").  No
optionee is eligible to receive more than 500,000 shares under the 1988 Plan, as
amended.  From the inception of the 1988 Plan in September 1988 to May 23, 1997,
options to purchase an aggregate of  5,529,744  shares (net of 3,349,012  shares
canceled) of the  Company's  Common Stock were granted  under the 1988 Plan.  Of
these,  options to purchase a total of  1,558,000  shares  were  granted to each
executive officer named in the Summary Compensation Table, as follows: David St.
Charles,  770,000 shares, Naren Gupta, zero shares, Tony Tolani,  60,000 shares,
Joseph Addiego, 407,000 shares, Gregory Olson, 200,000 shares, and Andrew Pease,
70,000  shares.  During the same  period,  options to purchase an  aggregate  of
2,109,000 shares of Common Stock were granted to all current executive  officers
of the  Company  as a group (14  persons).  No options  were  granted to current
directors or nominees for election as a director who are not executive  officers
as a  group  (4  persons)  or to  associates  of any  such  executive  officers,
directors  or  nominees.  As of May 23,  1997,  approximately  521 persons  were
eligible to receive options under the 1988 Plan, the cumulative number of shares
issued upon exercise of options  since  inception of the 1988 Plan was 2,619,314
and  2,910,430  shares were  subject to  outstanding  options.  As of that date,
470,256 shares were available for future option grants. The fair market value of
the Company's Common Stock on May 23, 1997 was $12.25 per share.

Stock

         The stock  subject  to  options  under the 1988  Plan  consists  of the
Company's  authorized but unissued Common Stock.  The aggregate number of shares
issued  under  options  pursuant  to the  1988  Plan  may not  exceed  6,000,000
(7,000,000 if Proposal No. 2 is approved by the Company's shareholders).  In the
event that any outstanding  option under the 1988 Plan for any reason expires or
is terminated,  the shares of Common Stock allocable to the unexercised  portion
of such option may again be made subject to an option under the 1988 Plan.

Terms of Options

         Subject to the terms and conditions of the 1988 Plan, the Committee, in
its discretion, determines for each option whether the option is to be an ISO or
a nonqualified stock option ("NQSO"),  the number of shares for which the option
will be granted,  the exercise price of the option, the periods during which the
option  may be  exercised,  and  other  terms  and  conditions.  Each  option is
evidenced  by an option  grant in such  form as the  Committee  approves  and is
subject to the following conditions:

         Option Price.  The option  exercise price may not be less than the fair
market  value of the  shares  of  Common  Stock on the date of  grant,  provided
however that the option  exercise  price of an ISO granted to a 10%  shareholder
may not be less than 110% of the fair market value of the shares of Common Stock
on the date of grant.

         Form of Payment. The option exercise price is typically payable in cash
or by check.  In  addition,  the  option  exercise  price may also be payable in
shares of fully  paid  Common  Stock of the  Company  that have been owned by an
optionee for more than six months, by promissory note, through a "same day sale"
or by a combination of the foregoing that the Committee may authorize.

         Terms of  Options  and  Vesting.  Under  the  1988  Plan,  options  are
permitted to be exercised  for up to ten years,  except that an ISO granted to a
10%  shareholder  of the Company can only be exercised  for five years.  Options
that were  granted  under the 1988 Plan prior to May 11, 1993  generally  become
exercisable  annually  over a  period  of five  years,  at a rate of 20% on each
anniversary  date after the date of grant.  Options that were granted  under the
1988  Plan  between  May  11,  1993  and  December  12,  1996  generally  become
exercisable  over  a  period  of  five  years,  at a rate  of  20% on the  first
anniversary  date after the date of grant and then 1/60th of the shares  granted
at the end of each month  thereafter.  Options that were granted  under the 1988
Plan on or after December 13, 1996 generally become exercisable over a period of
four  years,  at a rate of 25% on the first  anniversary  date after the date of
grant and then 1/48th of the shares granted at the end of each month thereafter.

         Termination of Employment.  If an optionee ceases to be employed by the
Company,  the optionee  typically has three months (or twelve months in the case
of the employee's  death or  disability) to exercise any options  exercisable on
the date employment ends.

         Recapitalization.  The number of shares  subject to any option  will be
adjusted in the event of a stock dividend,  stock split,  reverse stock split or
similar  change  relating  to the  Company's  Common  Stock.  In the  event of a
dissolution or certain types of acquisitions of the Company,  if the options are
not assumed or substituted by a successor corporation,  they will accelerate and
become exercisable in full prior to their termination.

         Other Provisions.  The option grant and exercise agreements  authorized
under the 1988 Plan,  which may be different  for each option,  may contain such
other provisions as the Committee deems advisable.

                                      -5-
<PAGE>


Term of the Plan

         Options  may be  granted  pursuant  to the 1988  Plan from time to time
until  September  1998,  which is ten  years  after  the date the 1988  Plan was
originally adopted by the board.

Federal Income Tax Information

THE FOLLOWING IS A GENERAL SUMMARY OF THE FEDERAL INCOME TAX CONSEQUENCES TO THE
COMPANY AND  PARTICIPANTS  UNDER THE 1988 PLAN.  THE FEDERAL TAX LAWS MAY CHANGE
AND THE  FEDERAL,  STATE AND LOCAL TAX  CONSEQUENCES  FOR ANY  PARTICIPANT  WILL
DEPEND UPON HIS OT HER INDIVIDUAL  CIRCUMSTANCES.  EACH PARTICIPANT HAS BEEN AND
IS ENCOURAGED  TO SEEK THE ADVICE OF A QUALIFIED  TAX ADVISOR  REGARDING THE TAX
CONSEQUENCES OF PARTICIPATION IN THE 1988 PLAN.

         Incentive  Stock Options.  A Participant  will recognize no income upon
grant of an ISO and incur no tax on its  exercise  (unless  the  Participant  is
subject to the alternative  minimum tax) (the "AMT").  If the Participant  holds
shares  acquired  upon  exercise of an ISO (the "ISO  shares") for more than one
year after the date the option was  exercised  and for more than two years after
the  date the  option  was  granted,  the  Participant  generally  will  realize
long-term  capital  gain or loss  (rather  than  ordinary  income or loss)  upon
disposition of the ISO shares. This gain or loss will be equal to the difference
between the amount  realized upon such  disposition  and the amount paid for the
ISO Shares.

         If the  Participant  disposes of the ISO Shares prior to the expiration
of either  required  holding period (a  "disqualifying  disposition"),  the gain
realized upon such  disposition,  up to the  difference  between the fair market
value of the ISO  Shares  on the date of  exercise  (or,  if  less,  the  amount
realized  on a sale of such  shares)  and the  option  exercise  price,  will be
treated as ordinary income.  Any additional gain will be long-term or short-term
capital gain,  depending upon the amount of time the ISO Shares were held by the
Participant.

         Alternative  Minimum Tax. The difference  between the fair market value
of the ISO shares on the date of exercise and the exercise rice is an adjustment
to income for purposes of the AMT. The AMT (imposed to the extent it exceeds the
taxpayer's regular tax) is 26% of an individual  taxpayer's  alternative minimum
taxable income (28% in the case of alternative  minimum taxable income in excess
of  $175,000).  Alternative  minimum  taxable  income is determined by adjusting
regular taxable income for certain items,  increasing that income by certain tax
preference items (including the difference  between the fair market value of the
ISO Shares on the date of exercise  and the exercise  price) and  reducing  this
amount by the applicable  exemption  amount  ($45,000 in case of a joint return,
subject  to  reduction   under  certain   circumstances).   If  a  disqualifying
disposition  of the ISO Shares  occurs in the same  calendar year as exercise of
the ISO, there is no AMT adjustment with respect to those ISO Shares. Also, upon
a sale  of ISO  Shares  that  is not a  disqualifying  disposition,  alternative
minimum  taxable income is reduced in the year of sale by the excess of the fair
market  value of the ISO Shares at  exercise  over the  amount  paid for the ISO
Shares.

         Nonqualified  Stock  Options.  A  Participant  will not  recognize  any
taxable income at the time a NQSO is granted.  However, upon exercise of a NQSO,
the  Participant  must include in income as  compensation as amount equal to the
difference  between the fair market  value of the shares on the date of exercise
and the  Participant's  exercise  price.  The included amount must be treated as
ordinary  income by the  Participant  and may be subject to  withholding  by the
Company  (either  by  payment in cash or  withholding  out of the  Participant's
salary).  Upon  resale  of  the  shares  by  the  Participant,   any  subsequent
appreciation  on  depreciation  in the value of the  shares  will be  treated as
capital gain or loss.

         Omnibus  Budget   Reconciliation   Act  of  1993.  The  Omnibus  Budget
Reconciliation  Act of 1993  provides  that the maximum tax rate  applicable  to
ordinary income is 39.6%.  Long-term  capital gain will be taxed at a maximum of
28%. For this purpose, in order to receive long-term capital gain treatment, the
shares  must be held for more  than one  year.  Capital  gains  may be offset by
capital losses and up to $3,000 of capital losses may be offset annually against
ordinary income.

         Tax Treatment of the Company. The Company generally will be entitled to
a deduction in connection  with the exercise of a NQSO by a  participant  to the
extent that the Participant recognizes ordinary income and the Company withholds
tax.  The  Company  will be  entitled  to a  deduction  in  connection  with the
disposition  of ISO Shares  only to the extent that the  Participant  recognizes
ordinary income on a disqualifying disposition of the ISO Shares.

                                      -6-
<PAGE>


ERISA

         The 1988 Plan is not subject to any of the  provisions  of the Employee
Retirement  Income  Security Act of 1974  ("ERISA"),  and is not qualified under
Section 401(a) of the Code.

New Plan Benefits

         The  amounts  of  future  option  grants  under  the 1988  Plan are not
determinable because,  under the terms of the 1988 Plan, such grants are made in
the  discretion  of  the  Committee,  Future  option  exercise  prices  are  not
determinable  because they are based upon the fair market value of the Company's
Common Stock on the date of grant.

          THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR APPROVAL OF THE
                    AMENDMENT TO THE 1988 STOCK OPTION PLAN.


                                      -7-
<PAGE>



      PROPOSAL NO. 3 - RATIFICATION OF SELECTION OF INDEPENDENT ACCOUNTANTS

         The Company has  selected  Coopers & Lybrand  L.L.P.  as its  principal
independent  accountants  to  perform  the  audit  of  the  Company's  financial
statements for the current fiscal year, and the  shareholders are being asked to
ratify  this  selection.  Representatives  of Coopers & Lybrand  L.L.P.  will be
present at the Meeting,  will be given an opportunity to make a statement at the
Meeting if they desire to do so and will be available to respond to  appropriate
questions.

                THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE
            RATIFICATION OF THE SELECTION OF COOPERS & LYBRAND L.L.P.

<TABLE>
         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The following table sets forth certain information, as of May 23, 1997,
with respect to the  beneficial  ownership of the Company's  Common Stock by (i)
each shareholder known by the Company to be the beneficial owner of more than 5%
of the  Company's  Common  Stock,  (ii) each  director and  nominee,  (iii) each
executive  officer  named in the Summary  Compensation  Table below and (iv) all
officers and directors as a group.

<CAPTION>
  Name and Address                                    Amount and Nature of
of Beneficial Owner                                  Beneficial Ownership (1)          Percent of Class
- -------------------                                  ------------------------          ----------------
<S>                                                        <C>                         <C>  
Narendra K. and Vinita Gupta (2)(3)(4)                     4,759,875                   20.6%
Nevis Capital Management (5)                               2,201,900                    9.5%
Thomas Kailath (4)(6)                                        833,725                    3.6%
David P. St. Charles (4)                                     130,195                       *
John C. Bolger (4)                                            33,750                       *
Richard C. Murphy (4)                                         24,062                       *
Tony Tolani (4) (7)                                           22,646                       *
Joseph Addiego (4)                                            15,362                       *
Gregory Olson (4) (7)                                              0                       *
Andrew Pease (4) (7)                                               0                       *

All officers and directors as a group (14 persons) (4)     5,909,907                   25.5%
<FN>
- ----------------------------------
* Less than 1%

(1)      Unless otherwise indicated below, the persons and entities named in the
         table have sole voting and sole  investment  power with  respect to all
         shares beneficially owned, subject to community property laws.

(2)      The address of this  shareholder is c/o Integrated  Systems,  Inc., 201
         Moffett Park Drive, Sunnyvale, CA, 94089.

(3)      Represents  (i) 3,720,200  shares of Common Stock held of record by Dr.
         and Mrs. Gupta, (ii) 1,000,000 shares held of record by them,  together
         with a third party,  as trustees for their  children,  as to which they
         disclaim beneficial ownership,  (iii) 7,800 shares held by Dr. Gupta as
         custodian for his daughter under the Uniform Gifts to Minors Act, as to
         which he disclaims  beneficial ownership and (iv) 31,875 shares subject
         to options held by Mrs.  Gupta that are  exercisable  within 60 days of
         May 23, 1997.

(4)      Includes 31,875 shares for Mrs.  Gupta,  31,875 shares for Dr. Kailath,
         128,750  shares  for Mr. St.  Charles,  29,750  shares for Mr.  Bolger,
         20,667  shares for Mr.  Tolani,  19,062 shares for Mr.  Murphy,  10,500
         shares  for Mr.  Addiego,  and  361,130  shares for all  directors  and
         officers  as a group that are  subject to options  and are  exercisable
         within 60 days after May 23, 1997.

(5)      The address of this shareholder is Nevis Capital Management, Inc., 1119
         St. Paul Street,  Baltimore,  Maryland, 21202. As of February 12, 1997,
         Nevis Capital Management  ("Nevis") reported on Schedule 13G filed with
         the SEC that it beneficially  owned  2,112,800  shares of the Company's
         Common Stock.  Nevis has since orally  informed the Company that, as of
         May 23, 1997, it owned 2,201,900 shares of the Company's Common Stock.

(6)      Represents  (i)  407,850  shares of Common  Stock held of record by Dr.
         Kailath and his wife as trustees of a  revocable  trust,  (ii)  394,000
         shares held of record by them, together with a third party, as trustees
         for their three  children,  and as  custodians  for their son under the
         Uniform Gifts to Minors Act and (iii) 31,875 shares  subject to options
         held by Dr.  Kailath  that are  exercisable  within  60 days of May 23,
         1997.

(7)      Tony Tolani,  Gregory Olson,  and Andrew Pease are no longer  executive
         officers of the Company.
</FN>
</TABLE>

                                      -8-
<PAGE>

<TABLE>

                             EXECUTIVE COMPENSATION

         The following table sets forth all compensation awarded, earned or paid
to the  Company's  Chief  Executive  Officer and the  Company's  four other most
highly compensated  executive officers who were serving as executive officers at
the end of fiscal 1997, as well as one former  executive  officer,  for services
rendered in all  capacities to the Company and its  subsidiaries  during each of
fiscal 1995, 1996 and 1997. This information  includes the dollar values of base
salaries and bonus awards, the number of stock options granted and certain other
compensation, if any, whether paid or deferred. The Company does not grant stock
appreciation  rights ("SARs") and has no long-term  compensation  benefits other
than options.
<CAPTION>

                                       SUMMARY COMPENSATION TABLE

                                                                           Long-Term
                                                                         Compensation
                                           Annual Compensation              Awards
                                           ----------------------------- ------------
                                                                                           
                                                                          Securities     All Other 
                                                                          Underlying     Compensa- 
Name and                                     Salary (1)      Bonus (2)    Options (3)    tion  (4)
Principal Position           Year              ($)              ($)          (#)            ($)
- ---------------------------- ----------    --------------  ------------- --------------------------------
<S>                            <C>           <C>             <C>            <C>            <C>   
David St. Charles              FY97          $257,462           --          100,000        $2,113
President and CEO              FY96          $209,056        $90,000         60,000        $1,397
                               FY95          $184,631        $58,586         50,000        $2,353

Narendra K. Gupta              FY97          $181,742           --             --          $2,510
Chairman and Secretary         FY96          $174,434        $65,000           --          $2,357
                               FY95          $159,438        $40,278           --          $2,356

Tony Tolani                    FY97          $288,387           --           10,000        $1,942
Vice President,                FY96          $207,341        $10,000           --          $1,327
Far East Operations            FY95 (5)       $28,307        $15,000         40,000          $431

Joseph Addiego  (6)            FY97          $274,303           --           40,000        $2,177
President,                     FY96          $249,222        $15,000         20,000        $2,211
TakeFive Software, GmbH        FY95          $214,504        $10,000         30,000        $2,395

Gregory Olson                  FY97 (7)      $192,750           --          100,000          $956
Vice President,
Marketing

Andrew Pease                   FY97 (8)      $175,689           --           35,000        $1,997
Vice President,
North American Sales
<FN>
- ----------------------------------
(1)      Includes commissions and deferrals for 401(k) and Section 125 Plans.

(2)      Represents  bonuses earned for services rendered during the fiscal year
         listed, but does not include bonuses paid during the fiscal year listed
         for services rendered during a prior fiscal year.

(3)      Options  issued prior to fiscal 1997  reflect a 2-for-1  stock split of
         the Company effective April 5, 1996.

(4)      Represents employer matching contributions to 401(k) Plan accounts.

(5)      Amounts  listed are for a partial  fiscal year from the time Mr. Tolani
         became an executive officer of the Company on December 12, 1994 through
         the end of the fiscal year. Mr. Tolani is no longer with the Company.

(6)      For fiscal 1995,  fiscal  1996,  and from March 1, 1996 through May 31,
         1996, Mr. Addiego served as Vice President, North American Sales.

                                      -9-
<PAGE>


(7)      Amounts  listed are for July 1996 when Mr.  Olson  became an  executive
         officer of the Company,  through the end of the fiscal year.  Mr. Olson
         is no longer with the Company.

(8)      Amounts  listed are for June 1996 when Mr.  Pease  became an  executive
         officer of the Company,  through the end of the fiscal year.  Mr. Pease
         in no longer with the Company.
</FN>
</TABLE>

<TABLE>
The following table sets forth further information  regarding  individual grants
of options for the  Company's  Common  Stock  during  fiscal 1997 to each of the
executive  officers  named in the Summary  Compensation  Table  above.  All such
grants were made pursuant to the Company's 1988 Stock Option Plan. In accordance
with the  rules of the SEC,  the table  sets  forth  the  hypothetical  gains or
"option spreads" that would exist for the options at the end of their respective
ten-year  terms  based on  assumed  annualized  rates of  compound  stock  price
appreciation of 5% and 10% from the dates the options were granted to the end of
the  respective  option  terms.  Actual gains,  if any, on option  exercises are
dependent on the future  performance  of the Company's  Common Stock and overall
market  conditions.  There can be no  assurance  that the  potential  realizable
values shown in this table will be achieved.

<CAPTION>
                                       OPTION GRANTS IN FISCAL 1997

                                                                                  Potential Realizable
                                                                                   Value at Assumed
                                                                                 Annual Rates of Stock
                                                                                    Price Appreciation
                                            Individual Grants                      For Option Term
                       -------------------------------------------------------- ------------------------------

                          Number          % of
                            of            Total
                        Securities       Options
                        Underlying       Granted       Exercise
                          Options          in          or Base       Expira-
                          Granted        Fiscal         Price          tion          5%             10%
        Name              (1) (#)         1997       $/Share (2)     Date (2)      ($) (3)        ($) (3)
- ---------------------  --------------  ------------ --------------- ----------- -------------- ---------------
<S>                          <C>            <C>             <C>        <C>           <C>           <C>       
David St. Charles            100,000        9.6820          10.250     4/16/07       $645,000      $1,634,000

Narendra K. Gupta                 --            --              --          --             --              --

Tony Tolani                   10,000        0.9682           8.750     4/17/07        $55,000        $139,500

Joseph Addiego                40,000        3.8730           8.750     4/17/07       $220,000        $558,000

Gregory Olson                100,000        9.6820           8.750     4/17/07       $550,000        $845,000

Andrew Pease                  35,000        3.3889           8.750     4/17/07       $192,500        $448,250
<FN>
- ----------------------------------
(1)      Stock  options  are granted  with an  exercise  price equal to the fair
         market  value of the  Company's  Common Stock on the date of the grant.
         Under the 1988 Plan,  options are  permitted to be exercised  for up to
         ten  years,  except  that an ISO  granted to a 10%  shareholder  of the
         Company can only be exercised for five years.  Options generally become
         exercisable  over a period of four years, at a rate of 25% on the first
         anniversary date after the date of grant,  then 1/48th of the shares at
         the end of each month thereafter.

(2)      In April  1997,  the  Company  offered  employees  the  right to cancel
         certain  outstanding  stock  options at  original  exercise  prices and
         receive new options with a new exercise price.  The new exercise prices
         range from $8.75 to $10.50 per share, based on the closing price of the
         Common Stock on the date  individual  employees  agreed to cancel their
         options. Options to purchase a total of 1,222,632 shares were issued in
         April 1997.  Vesting  under the new options  commenced  on the date the
         individual  employees  agreed to cancel  their  original  options,  and
         occurs over a four year  period.  All of the  options  shown above were
         canceled  and  regranted  in  April  1997.  The  exercise   prices  and
         expiration dates shown above reflect the exercise prices and expiration
         dates of the new grants.

(3)      The  5%  and  10%  assumed  rates  of  annual   compound   stock  price
         appreciation  are mandated by the rules of the SEC and do not represent
         the Company's estimate or projection of future Common Stock prices.

</FN>
</TABLE>
                                      -10-

<PAGE>

<TABLE>
The following  table sets forth certain  information  concerning the exercise of
stock options during fiscal 1997 by each of the executive  officers named in the
Summary  Compensation  Table above and the number and value at February 28, 1997
of unexercised options held by said individuals:

<CAPTION>
                         AGGREGATED OPTION EXERCISES IN FISCAL 1997
                             AND FEBRUARY 28, 1997 OPTION VALUES

                                                            Number of                     Value of
                                                       Securities Underlying         Unexercised In-the
                                                        Unexercised Options            Money Options
                                                             at 2/28/97                 at 2/28/97  (2)
                                                      ---------------------------- ----------------------------
                         Shares
                        Acquired         Value
                           on           Realized         Exer-        Unexer-         Exer-         Unexer-
        Name            Exercise        ($) (1)         cisable       cisable        cisable        cisable
- --------------------- -------------- ---------------  ------------ --------------- -------------  -------------
<S>                       <C>          <C>               <C>            <C>        <C>            <C>       
David St. Charles         194,500      $4,300,254        89,333         196,167    $1,524,298     $2,726,589

Narendra K. Gupta              --              --            --              --            --             --

Tony Tolani                    --              --        17,333          32,667      $257,829       $474,672

Joseph Addiego             36,000        $723,187        34,151          86,333      $610,642     $1,291,516

Gregory Olson                  --              --            --         100,000            --     $1,375,000

Andrew Pease                   --                            --          35,000            --       $481,250
<FN>
- ----------------------------------
(1)      "Value  Realized"  represents  the fair  market  value of the shares of
         Common  Stock  underlying  the option on the date of exercise  less the
         aggregate price of the option.

(2)      These values have not been,  and may never be,  realized.  These values
         are based on the positive spread between the respective exercise prices
         of  outstanding  options  (as  repriced  in April 1997) and the closing
         price of the Company's  Common Stock on February 28, 1997, the last day
         of trading for fiscal 1997.
</FN>
</TABLE>

           COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

         The Compensation  Committee of the Board makes all decisions  involving
the compensation of executive  officers of the Company.  During fiscal 1997, the
Compensation Committee consisted of the following non-employee  directors:  John
C. Bolger, Dr. Thomas Kailath and Richard C. Murphy.

             COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

         The Compensation  Committee Report on Executive  Compensation shall not
be deemed to be incorporated by reference by any general statement incorporating
by reference  this Proxy  Statement  into any filing under the Securities Act of
1933 or under the Securities Exchange Act of 1934, except to the extent that the
Company specifically  incorporates this information by reference,  and shall not
otherwise be deemed filed under such Acts.

         Through the entire fiscal year 1997, the Compensation  Committee of the
Board was  comprised of three  non-management  directors  of the  Company,  John
Bolger, Thomas Kailath, and Richard Murphy. Mr. David P. St. Charles,  President
and Chief Executive Officer, evaluated the performance of all executive officers
and  recommended  salary  adjustments  which were  reviewed  and approved by the
Compensation   Committee.   Performance  evaluations  for  individual  executive
officers are based on  predetermined  individual  goals. For the Company's Chief
Executive  Officer  and  Chairman  of the  Board,  these  goals  are  set by the
Compensation Committee,  and for all other officers, these goals are recommended
by the Chief  Executive  Officer and reviewed  and approved by the  Compensation
Committee.  Mr. St. Charles and Dr. Gupta did not participate in any discussions
regarding recommended salary adjustments for themselves.

                                      -11-
<PAGE>


         The Compensation Committee is responsible for setting and administering
the policies  governing  annual  compensation of the executive  officers and the
Chairman  of the  Board  of the  Company.  These  policies  are  based  upon the
philosophy  that the  Company's  long-term  success in its  marketplace  is best
achieved  through  recruitment and retention of the best people in the industry.
The Compensation  Committee applies this philosophy in determining  compensation
for  Company  executive  officers  in three  areas:  salary,  bonuses  and stock
options. The Compensation  Committee believes that the compensation of the Chief
Executive  Officer,  the Chairman of the Board and the Company's other executive
officers should be greatly influenced by the Company's  performance.  Consistent
with this philosophy, a designated portion of the compensation of each executive
is contingent upon corporate  performance and adjusted where appropriate,  based
on an executive's  performance  against personal  performance  objectives.  Each
executive officer's  performance for the last fiscal year and objectives for the
subsequent year are reviewed, together with the executive's responsibility level
and the Company's fiscal performance versus objectives and potential performance
targets for the subsequent  year. The  Compensation  Committee  administers  the
Company's  equity  plans,  including  the 1988  Stock  Option  Plan and the 1990
Employee Stock Purchase Plan.

Salary

         The Company  strives to offer  salaries to its executive  officers that
are  competitive  in  its  industry  for  similar  positions  requiring  similar
qualifications.  In determining  executive officers  salaries,  the Compensation
Committee considers information provided by the Vice President,  Human Resources
and Operations,  whose recommendations are based upon salary surveys specific to
the Company's industry,  size and geographic location. Such surveys are prepared
by  an  independent  organization  using  information  provided  from  over  300
companies. These surveys summarize information from companies that closely match
the  Company  in terms of such  things as  product or  industry,  geography  and
revenue levels. To this end, the Compensation Committee attempted to compare the
compensation of the Company's executive officers with the compensation practices
of the survey  companies to determine  base  salary,  target  bonuses and target
total cash  compensation.  In  preparing  the  performance  graph for this Proxy
Statement,  the  Company  used the  Hambrecht  & Quist  Technology  Index as its
published  line of business  index.  The  compensation  practices of most of the
companies in the Hambrecht & Quist  Technology Index were not reviewed in detail
by the  Company  when  the  Compensation  Committee  reviewed  the  compensation
information  discussed  above because such companies  were  determined not to be
directly competitive with the Company for executive talent. In addition to their
base salaries,  the Company's executive officers,  including the Chief Executive
Officer and Chairman of the Board, are each eligible to receive a cash bonus and
are entitled to  participate  in the 1988 Stock  Option Plan.  The bonus for the
Chief Executive Officer, Chairman of the Board and for other executives is based
primarily on Company performance.

         The foregoing  information was presented to the Compensation  Committee
in March 1997.  The  Compensation  Committee  reviewed the  recommendations  and
performance  and market data outlined above and  established a base salary level
to be effective  March 1, 1997 for each executive  officer,  including the Chief
Executive  Officer and  Chairman of the Board.  In addition to  considering  the
results of the performance  evaluations and information  concerning  competitive
salaries,  the Compensation  Committee and Chief Executive Officer place primary
weight  on  the  financial  condition  of  the  Company  in  considering  salary
adjustments.

Bonuses

         The  Company  seeks to provide  additional  incentives  and  rewards to
executives who make contributions of outstanding value to the Company.  For this
reason, the Compensation  Committee administers a bonus plan, which can comprise
a  substantial  portion of the total  compensation  of executive  officers  when
earned and paid.

         The Compensation Committee determines annually the total amount of cash
bonuses available for executive  officers.  Awards under the plan are contingent
upon the  performance  of the  Company  as a  whole,  based  upon the  Company's
attaining  certain revenue and operating  profit goals set by the Board annually
in consultation with the Chief Executive Officer.  The target amounts of bonuses
available  to each  executive  officer  are  set  annually  by the  Compensation
Committee  in its  discretion  with  regard to the Chief  Executive  Officer and
Chairman of the Board and by the Chief Executive Officer,  subject to review and
approval by the Compensation Committee,  with regard to executive officers other
than himself.  In all cases, the relative target amounts for individual officers
are based upon the total  dollars  available  for bonuses,  and  historical  and
expected future  contributions by the individual  executive  officer.  In fiscal
1997, the objectives used by the Company as the basis for incentive compensation
were  based  primarily  on  Company  performance.   Executive  officers  earn  a
percentage  of  the  target  amounts  under  the  bonus  plan  relating  to  the
achievement  of  the  performance  goals  under  the  plan  by the  Company,  as
determined by the Committee  annually in its discretion.  Awards are weighted so
that proportionately  higher awards are received when the Company's  performance
exceeds  targets  and  proportionately  smaller  or no awards  are made when the
Company does not meet targets.

                                      -12-
<PAGE>


Stock Options

         The  Compensation  Committee  believes that employee  equity  ownership
provides  significant  additional  motivation to executive  officers to maximize
value for the  Company's  shareholders,  and  therefore  recommends to the Board
periodic  grants of stock options  under the  Company's  1988 Stock Option Plan.
Stock options are granted by the Compensation Committee in its discretion at the
prevailing  market price and will have value only if the  Company's  stock price
increases  over  the  exercise  price.  Therefore,  the  Compensation  Committee
believes that stock  options  serve to align the interest of executive  officers
closely with other shareholders because of the direct benefit executive officers
receive through improved stock performance.

         The Compensation  Committee makes option grants in its discretion after
consideration of  recommendations  from Mr. St. Charles and other members of the
Board.  Recommendations  for  options  are based  upon  relative  positions  and
responsibilities of executive officers, historical and expected contributions of
each  executive  officer to the  Company,  and  previous  option  grants to such
executive  officers.  Options are  recommended  with a goal of providing  equity
compensation for executive officers  competitive with that of executive officers
of  similar  rank in  other  companies  in the  Company's  industry,  geographic
location  and size.  Stock  options  typically  have been  granted to  executive
officers  when the  executive  first joins the  Company,  in  connection  with a
significant change in  responsibilities,  and,  occasionally,  to achieve equity
within a peer  group.  The  Committee  in its  discretion  may,  however,  grant
additional  stock options to executives for other reasons.  The number of shares
subject to each stock option granted is based on anticipated future contribution
and ability to impact corporate results,  past performance or consistency within
the  executive's  peer group.  In fiscal 1997,  the Committee  considered  these
factors,  as well as the number of options held by such executive officers as of
the date of grant that remained unvested.  Option grants for fiscal 1997 are set
forth in the table above entitled "Option Grants in Fiscal 1997".

         In April 1997, the Compensation  Committee approved an option repricing
program.  All  employees,   including  executive  officers,   were  eligible  to
participate under the repricing  program.  All eligible  executive officers with
options  that had  exercise  prices  greater  than  closing  price on the Nasdaq
National  Market on the date of the  repricing,  had the option to exchange such
options on a  one-for-one  basis.  Options to purchase an aggregate of 1,222,632
shares of Common  Stock were  repriced,  with new exercise  prices  ranging from
$8.75 to $10.50 per share, based on the closing price of the Common Stock on the
Nasdaq National Market on the date individual  employees  agreed to cancel their
original  outstanding  options. Of these repriced options,  451,000 were held by
executive  officers of the Company.  The vesting schedule of the new options was
adjusted  to begin on the date  individual  employees  agreed  to  cancel  their
original outstanding options, with any prior vesting being forfeited.

Fiscal 1997 Chief Executive Officer Compensation

         In March  1996,  the  Committee  established  a base salary for Mr. St.
Charles for fiscal 1997.  This base salary  represented an increase over Mr. St.
Charles' fiscal 1996 base salary. The Compensation  Committee also established a
target bonus for Mr. St.  Charles  under the fiscal 1997 bonus plan.  The fiscal
1997 base  salary  level and target  bonus were based upon a number of  factors,
including  (a)  the  Compensation  Committee's  assessment  of the  fiscal  1996
performance  of the  Company  and Mr.  St.  Charles,  (b)  fiscal  1997  Company
performance    objectives    and   individual    performance    objectives   and
responsibilities  for Mr. St.  Charles  established  in March 1996,  and (c) the
market  compensation  data for  companies in the same  industry  and  geographic
location  and  similar  in  size to the  Company  in  terms  of  revenue.  These
objectives  included  satisfactorily  managing the Company's  overall  corporate
business plan, such as meeting the Company's  profitability  projections and the
Company's sales targets, and strengthening the Company's financial position.

         In fiscal 1997, the  Compensation  Committee  granted Mr. St. Charles a
new stock option to purchase  100,000  shares.  The number of shares granted was
based on Mr.  St.  Charles'  position,  fiscal  1996  performance  and  expected
performance in fiscal 1997 and beyond.

         The  Compensation   Committee  has  concluded  that  Mr.  St.  Charles'
performance  in  fiscal  1997  warrants  the  compensation  for  fiscal  1997 as
reflected in the Summary Compensation Table.

Compliance with Section 162(m) of the Internal Revenue Code of 1986.

         The Company  intends to comply with the  requirements of Section 162(m)
of the Internal  Revenue Code of 1986 for 1997. The Company does not expect cash
compensation for 1997 to be in excess of $1,000,000 or consequently  affected by
the requirements of Section 162(m).

                                            COMPENSATION COMMITTEE

                                            John C. Bolger
                                            Thomas Kailath
                                            Richard Murphy

                                      -13-
<PAGE>



                      COMPANY STOCK PRICE PERFORMANCE GRAPH

         The  stock   price   performance   graph  below  shall  not  be  deemed
incorporated by reference by any general  statement  incorporating  by reference
this  Proxy  Statement  into any filing  under the  Securities  Act of 1933,  as
amended, or under the Securities Exchange Act of 1934, as amended, except to the
extent the Company specifically  incorporates this information by reference, and
shall not otherwise be deemed soliciting material or filed under such Acts.

         The graph below compares the cumulative total shareholder return of the
Common  Stock of the Company  from March 1, 1992 to  February  28, 1997 with the
cumulative  total return of the Nasdaq Composite Index and the Hambrecht & Quist
Technology  Index over the same period  (assuming the  investment of $100 in the
Company's  Common Stock and in each of the other  indices on March 1, 1992,  and
reinvestment of all dividends).

         The comparisons in the graph below are based on historical data and are
not intended to forecast the possible future performance of the Company's Common
Stock.

[The following  descriptive  data is supplied in accordance  with Rule 304(d) of
Regulation S-T]

        NASDAQ Composite Index  H&Q Technology Index    Integrated Systems, Inc.
                        
2/28/92             100                100                       100
8/31/92              89                 86                        63
2/28/93             106                101                        58
8/31/93             117                104                        79
2/28/94             124                119                       108
8/31/94             120                121                       117
2/28/95             125                138                       193
8/31/95             161                194                       263
2/28/96             175                207                       422
8/30/96             223                223                       598
2/28/97             207                271                       408
                                                     

                              CERTAIN TRANSACTIONS

         Since  March 1,  1996,  there  has not  been,  nor is  there  currently
proposed, any transaction or series of similar transactions to which the Company
was or is to be party in which the amount involved  exceeds $60,000 and in which
any  director,  executive  officer  or holder  of more than 5% of the  Company's
Common Stock had or will have a direct or indirect  material interest other than
(i)  compensation  arrangements,  which are  described  under  "Proposal No, 1 -
Election  of  Directors  - Board of  Directors'  Meetings  and  Committees"  and
"Executive Compensation" and (ii) the transaction described below.

         During fiscal 1997,  Digital Link  Corporation  purchased  products and
services totaling  approximately  $350,000 from the Company.  These transactions
were made on terms  substantially  similar to those the Company  offers to other
customers.  Dr.  Gupta,  the Chairman of the Board of Directors and Secretary of
the  Company,  served as a member  of the Board of  Directors  of  Digital  Link
Corporation.  Mrs.  Gupta,  who is a director  of the Company and the spouse Dr.
Gupta, is the Chairperson of the Board of Directors of Digital Link Corporation.
Dr.  and  Mrs.  Gupta  are more  than  10%  shareholders  of both  Digital  Link
Corporation and the Company.


                                      -14-

<PAGE>


             SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

         Section  16(a) of the  Securities  Exchange  Act of 1934  requires  the
Company's directors and executive officers, and persons who own more than 10% of
the Company's  Common Stock,  to file with the SEC initial reports of beneficial
ownership and reports of changes in beneficial  ownership of Common Stock of the
Company.  Officers,  directors and greater than 10% shareholders are required by
SEC  regulations  to furnish the Company with copies of all Section  16(a) forms
they file.

         Based solely on a review of the copies of such reports furnished to the
Company and written representations from the executive officers and directors of
the Company,  the Company  believes that all Section  16(a) filing  requirements
were  complied with during fiscal 1997,  except as follows:  David St.  Charles,
President  and Chief  Executive  Officer,  filed late one report  covering  five
transactions.




                              SHAREHOLDER PROPOSALS

         Shareholder  proposals for inclusion in the Company's  Proxy  Statement
and form of proxy relating to the Company's 1998 Annual Meeting of  Shareholders
must be received by February 20, 1998.




                                 OTHER BUSINESS

         The Board does not presently  intend to bring any other business before
the Meeting  and, so far as is known to the Board,  no matters are to be brought
before the Meeting  except as specified in the Notice of the Meeting.  As to any
business that may properly come before the Meeting, however, it is intended that
proxies in the form  accompanying  this Proxy Statement will be voted in respect
thereof in accordance with the judgment of the persons voting such proxies.


                                            By Order of the Board of Directors




                                            /s/ Narendra K. Gupta
                                            Narendra K. Gupta
                                            Chairman of the Board







================================================================================
                  ALL SHAREHOLDERS ARE URGED TO COMPLETE, SIGN
                       AND DATE THE ACCOMPANYING PROXY AND
                RETURN IT IN THE ENCLOSED POSTAGE-PAID ENVELOPE.
================================================================================


                                      -15-

<PAGE>

                            INTEGRATED SYSTEMS, INC.
                             1988 Stock Option Plan
                          As Adopted September 26, 1988
                         As Amended through March 28, 1997



         1. PURPOSE.  This Stock Option Plan ("Plan") is  established to provide
incentive for selected persons to promote the financial  success and progress of
Integrated  Systems,  Inc. (the  "Company") by granting such persons  options to
purchase shares of common stock of the Company.

         2. ADOPTION AND  SHAREHOLDER  APPROVAL.  This Plan shall be approved by
the shareholders of the Company, in any manner permitted by applicable corporate
law,  within twelve (12) months before or after the date this Plan is adopted by
the  Board of  Directors  of the  Company  (the  "Board")  and after the date of
certain  amendments to the Plan.  In addition,  no later than twelve (12) months
after the Company  becomes  subject to Section 16(b) of the Securities  Exchange
Act of 1934,  as amended (the  "Exchange  Act") the Company will comply with the
requirements of Rule 16b-3 with respect to shareholder approval.

         3. TYPES OF OPTIONS AND SHARES.  Options  granted  under this Plan (the
"Options") may be either (a) incentive stock options ("ISOs") within the meaning
of  Section  422 of the  Internal  Revenue  Code of 1986  (the  "Code"),  or (b)
nonqualified  stock options  ("NQSOs"),  as designated at the time of grant. The
shares of stock that may be purchased  upon  exercise of Options  granted  under
this Plan (the "Shares") are shares of the common stock of the Company.

         4. NUMBER OF SHARES.  The  maximum  number of Shares that may be issued
pursuant to Options granted under this Plan is Seven Million (7,000,000) Shares,
subject to adjustment as provided in this Plan. If any Option is terminated  for
any reason  without  being  exercised  in whole or in part,  the Shares  thereby
released  from such Option shall be available  for purchase  under other Options
subsequently granted under this Plan. At all times during the term of this Plan,
the Company shall reserve and keep  available  such number of Shares as shall be
required to satisfy the requirements of outstanding Options under this Plan.

         5.  ADMINISTRATION.  This  Plan may be  administered  by the Board or a
Committee appointed by the Board (the "Committee").  If, at the time the Company
registers  under the Exchange  Act, a majority of the Board is not  comprised of
Disinterested  Persons,  the Board shall  appoint a Committee  consisting of not
less than three persons (who need not be members of the Board),  each of whom is
a  "Disinterested  Person" (as  defined in Section  6(b)(iv) of the Plan) and an
"Outside  Director"  (as defined in Section  6(b)(vi) of the Plan) or  qualifies
under transition rules as an Outside Director.  As used in this Plan, references
to the "Committee" shall mean either such Committee or the Board if no Committee
has been established.  After registration of the Company under the Exchange Act,
Board  members  who are not  Disinterested  Persons  may not vote on any matters
affecting  the  administration  of this  Plan  or on the  grant  of any  Options
pursuant to this Plan to any officer or director of the Company or other  person
(in each case, an "Insider")  whose  transactions in the Company's  common stock
are subject to Section  16(b) of the  Exchange  Act,  but any such member may be
counted for  determining  the  existence of a quorum at any meeting of the Board
during which action is taken with respect to Options or  administration  of this
Plan and may vote on the grant of any  Options  pursuant to this Plan other than
to Insiders.  The  interpretation  by the Committee of any of the  provisions of
this Plan or any Option  granted under this Plan shall be final and binding upon
the  Company  and all  persons  having an  interest  in any Option or any Shares
purchased  pursuant to an Option.  The  Committee  may delegate the authority to
officers of the Company to grant  Options  under this Plan to Optionees  who are
not Insiders of the Company.  No Optionee shall be eligible to receive more than
500,000 Shares at any time during the term of this Plan pursuant to the grant of
Options hereunder.

                                      A-1
<PAGE>


         6.  ELIGIBILITY.  Options  may  be  granted  only  to  such  employees,
officers,  directors and consultants of the Company or any Parent, Subsidiary or
Affiliate of the Company (as defined  below) as the Committee  shall select from
time to time in its sole discretion ("Optionees"),  provided that only employees
of the Company or a Parent or  Subsidiary  of the  Company  shall be eligible to
receive ISOs. An Optionee may be granted more than one Option under this Plan.

                  (a) Assumption of Options. The Company may, from time to time,
assume  outstanding  options granted by another  company,  whether in connection
with an acquisition  of such other company or otherwise,  by either (i) granting
an option under this Plan in  replacement  of the option assumed by the Company,
or (ii) treating the assumed option as if it had been granted under this Plan if
the terms of such  assumed  option could be applied to an option  granted  under
this Plan.  Such  assumption  shall be  permissible if the holder of the assumed
option would have been  eligible to be granted an option  hereunder if the other
Company had applied the rules of this Plan to such grant.

                  (b)  Definitions.  As used in the Plan,  the  following  terms
shall have the following meanings:

                           (i) "Parent"  means any  corporation  (other than the
Company) in an unbroken chain of corporations ending with the Company if, at the
time of the  granting of the Option,  each of such  corporations  other than the
Company owns stock  possessing 50% or more of the total combined voting power of
all classes of stock in one of the other corporations in such chain.

                           (ii) "Subsidiary"  means any corporation  (other than
the Company) in an unbroken chain of corporations beginning with the Company if,
at the time of granting of the Option,  each of the corporations  other than the
last  corporation in the unbroken chain owns stock possessing 50% or more of the
total  combined  voting  power  of all  classes  of  stock  in one of the  other
corporations in such chain.

                           (iii)   "Affiliate"   means  any   corporation   that
directly,  or  indirectly  through  one or more  intermediaries,  controls or is
controlled  by, or is under  common  control  with  another  corporation,  where
"control"  (including the terms "controlled by" and "under common control with")
means the possession, direct or indirect, of the power to cause the direction of
the management and policies of the corporation, whether through the ownership of
voting securities, by contract or otherwise.

                           (iv)  "Disinterested  Person"  shall have the meaning
set forth in Rule  16b-3(d)(3)  as  promulgated  by the  Securities and Exchange
Commission  ("SEC")  under  Section  16(b) of the Exchange  Act, as such rule is
amended from time to time and as interpreted by the SEC.

                           (v) "Fair  Market  Value"  shall mean the fair market
value of the Shares as  determined  by the  Committee  from time to time in good
faith. If a public market exists for the Shares,  the Fair Market Value shall be
the average of the last  reported  bid and asked  prices for Common Stock of the
Company on the last  trading day prior to the date of  determination  or, in the
event the  Common  Stock of the  Company  is listed on a stock  exchange  or the
Nasdaq National Market, the Fair Market Value shall be the closing price on such
exchange  or  quotation  system  on the last  trading  day  prior to the date of
determination.

                           (vi) "Outside  Director"  shall mean any director who
is not (i) a current  employee  of the  Company  or any  Parent,  Subsidiary  or
Affiliate of the Company,  (ii) a former  employee of the Company or any Parent,
Subsidiary or Affiliate of the Company who is receiving  compensation  for prior
services  (other than benefits  under a  tax-qualified  pension  plan),  (iii) a
current or former officer of the Company or any Parent,  Subsidiary or Affiliate
of the Company or (iv) currently receiving compensation for personal services in
any  capacity,  other  than as a  director,  from  the  Company  or any  Parent,
Subsidiary or Affiliate of the Company; provided,  however, that at such time as
the term "Outside  Director",  as used in Section 162(m) of the Code, is 

                                      A-2

<PAGE>


defined in the regulations  promulgated under Section 162(m), "Outside Director"
shall have the meaning set forth in such  regulations,  as amended  from time to
time and as interpreted by the Internal Revenue Service.

         7. TERMS AND  CONDITIONS  OF OPTIONS.  The  Committee  shall  determine
whether  each Option is to be an ISO or an NQSO,  the number of Shares for which
the Option  shall be granted,  the  exercise  price of the  Option,  the periods
during which the Option may be exercised,  and all other terms and conditions of
the Option, subject to the following terms and conditions:

                  (a) Form of Option Grant.  Each Option granted under this Plan
shall be evidenced by a written Stock Option Grant ("Grant") in such form (which
need not be the same for each Optionee) as the Committee shall from time to time
approve,  which  Grant  shall  comply  with  and be  subject  to the  terms  and
conditions of this Plan.

                  (b) Exercise  Price.  The exercise price of an Option shall be
not less than the Fair Market  Value of the Shares,  at the time that the Option
is granted.  The exercise  price of any Option granted to a person owning 10% or
more of the total  combined  voting power of all classes of stock of the Company
or any Parent or Subsidiary of the Company ("Ten Percent Shareholder") shall not
be less  than  110% of the Fair  Market  Value of the  Shares at the time of the
grant, as determined by the Committee in good faith.

                  (c) Exercise Period.  Options shall be exercisable  within the
times or upon the events  determined by the Committee as set forth in the option
grant;  provided,  however,  that no  Option  shall  be  exercisable  after  the
expiration  of ten years  from the date the  option  is  granted,  and  provided
further that no Option granted to a Ten Percent Shareholder shall be exercisable
after the expiration of five years from the date the Option is granted.

                  (d)  Limitations  on ISOs.  The  aggregate  Fair Market  Value
(determined  as of the time an Option is granted) of stock with respect to which
ISOs are  exercisable for the first time by an Optionee during the calendar year
(under this Plan or under any other  incentive  stock option plan of the Company
or any Parent or Subsidiary of the Company)  shall not exceed  $100,000.  If the
Fair  Market  Value of stock  with  respect  to which  ISOs are first  exercised
exceeds  $100,000,  the Options for the first  $100,000  worth of stock shall be
ISOs and options for the amount in excess of $100,000 shall be NQSOs.

                  (e) Date of Grant. The date of grant of an Option shall be the
date on which the Committee makes the  determination to grant such Option unless
otherwise specified by the Committee. The Grant representing the Option shall be
delivered  to the Optionee  within a  reasonable  time after the granting of the
Option.

                  (f)  Assumed  Options.  In the event the  Company  assumes  an
option granted by another company, the terms and conditions of such option shall
remain unchanged  (except the exercise price and the number and nature of shares
issuable upon exercise, which will be adjusted appropriately pursuant to Section
425(c)  of the  Code).  In the event the  Company  elects to grant a new  option
rather than assuming an existing  option (as specified in Section 6(a), such new
option  need not be  granted at Fair  Market  Value on the date of grant and may
instead be granted with a similarly adjusted exercise price.

         8.       EXERCISE OF OPTIONS.

                  (a) Notice.  Options may be exercised  only by delivery to the
Company of a written  notice and exercise  agreement  in a form  approved by the
Committee,  stating  the  number of Shares  being  purchased,  the  restrictions
imposed on the Shares and such  representations  and  agreements  regarding  the
Optionee's investment intent and access to information as may be required by the
Company to comply with applicable  securities laws together with payment in full
of the exercise price for the number of Shares being purchased.

                                      A-3

<PAGE>


                  (b)  Payment.  Payment  for the Shares may be made (i) in cash
(by check); (ii) by surrender of shares of common stock of the Company that have
been owned by  Optionee  for more than six (6) months  (and which have been paid
for within the meaning of SEC Rule 144 and, if such shares were  purchased  from
the  Company  by use of a  promissory  note,  such note has been fully paid with
respect to such  shares) or were  obtained  by the  Optionee  in the open public
market,  having a Fair Market Value equal to the  exercise  price of the Option;
(iii) where  permitted by  applicable  law and approved by the  Committee in its
sole discretion,  by tender of a full recourse promissory note having such terms
as may be approved by the Committee;  (iv) provided that a public market for the
Company's stock exists,  through a "same day sale"  commitment from the Optionee
and a broker-dealer  that is a member of the National  Association of Securities
Dealers (a "NASD Dealer")  whereby the Optionee  irrevocably  elects to exercise
the  Option  and to sell a portion  of the  Shares so  purchased  to pay for the
exercise price and whereby the NASD Dealer  irrevocably  commits upon receipt of
such Shares to forward the exercise price directly to the Company; or (v) by any
combination  of the  foregoing  where  approved  by the  Committee  in its  sole
discretion.  Optionees  who are not  employees or directors of the Company shall
not be  entitled to purchase  Shares with a  promissory  note unless the note is
adequately secured by collateral other than the Shares.

                  (c)  Withholding  Taxes.  Prior to issuance of the Shares upon
exercise of an Option, the Optionee shall pay or make adequate provision for any
federal or state withholding obligations of the Company, if applicable.

                  (d)  Limitations  on  Exercise.  Notwithstanding  the exercise
periods set forth in the Grant, exercise of an Option shall always be subject to
the following limitations:

                           (i)  If an  Optionee  ceases  to be  employed  by the
Company or any Parent,  Subsidiary  or  Affiliate  of the Company for any reason
except death or disability, the Optionee may exercise such Optionee's Options to
the extent (and only to the extent) that it would have been exercisable upon the
date of  termination,  within three (3) months after the date of termination (or
such shorter time period as may be specified in the Grant),  provided  that,  if
Optionee  is an Insider  and the  Company  is  subject  to Section  16(b) of the
Exchange Act, the  Optionee's  Option will be  exercisable  for a period of time
sufficient to allow such Optionee from having a matching purchase and sale under
Section 16(b),  with any extension  beyond three (3) months from  termination of
employment in the case of an Option constituting an ISO being deemed to be as an
NQSO, and provided  further that in no event may an Option be exercisable  later
than the expiration date of the Option.

                           (ii) If an Optionee's  employment with the Company or
any Parent,  Subsidiary or Affiliate of the Company is terminated because of the
death of the Optionee or  disability  of Optionee  within the meaning of Section
22(e)(3) of the Code,  such  Optionee's  Options may be  exercised to the extent
(and only to the extent) that it would have been  exercisable by the Optionee on
the  date  of   termination,   by  the   Optionee  (or  the   Optionee's   legal
representative) within twelve (12) months after the date of termination (or such
shorter time period as may be specified in the Grant), but in any event no later
than the expiration date of the Options.

                           (iii)  The   Committee   shall  have   discretion  to
determine  whether the  Optionee has ceased to be employed by the Company or any
Parent,  Subsidiary or Affiliate of the Company and the effective  date on which
such employment terminated.

                           (iv) In the case of an  Optionee  who is a  director,
independent  consultant,  contractor  or advisor,  the  Committee  will have the
discretion to determine  whether the Optionee is "employed by the Company or any
Parent,  Subsidiary  or  Affiliate  of the  Company"  pursuant to the  foregoing
Sections.

                           (v) An Option  shall not be  exercisable  unless such
exercise is in compliance  with the Securities Act of 1933, as amended,  and all
applicable state securities laws, as they are in effect on the date of exercise.

                                      A-4
<PAGE>

                           (vi) The Committee  may specify a reasonable  minimum
number of Shares that may be purchased  on any  exercise of an Option,  provided
that such minimum number will not prevent the Optionee from  exercising the full
number of Shares as to which the Option is then exercisable.

         9.  NONTRANSFERABILITY OF OPTIONS. During the lifetime of the Optionee,
an Option  shall be  exercisable  only by the  Optionee.  No Option may be sold,
pledged, assigned, hypothecated,  transferred or disposed of in any manner other
than by will or by the laws of descent and distribution.

         10.  PRIVILEGES OF STOCK  OWNERSHIP.  No Optionee shall have any of the
rights of a  shareholder  with respect to any Shares  subject to an Option until
the Option has been validly exercised. No adjustment shall be made for dividends
or  distributions or other rights for which the record date is prior to the date
of exercise,  except as provided in this Plan. The Company shall provide to each
Optionee a copy of the annual financial  statements of the Company, at such time
after the close of each fiscal  year of the Company as they are  released by the
Company to its shareholders.

         11.  ADJUSTMENT  OF  OPTIONS  SHARES.  In the event  that the number of
outstanding  shares  of  common  stock  of the  Company  is  changed  by a stock
dividend,  stock split,  reverse stock split,  combination,  reclassification or
similar change in the capital  structure of the Company  without  consideration,
the number of Shares  available under this Plan and the number of Shares subject
to outstanding Options and the exercise price per share of such Options shall be
proportionately  adjusted,  subject  to any  required  action  by the  Board  or
shareholders of the Company and compliance with applicable securities; provided,
however,  that no certificate or scrip  representing  fractional shares shall be
issued upon exercise of any Option and any resulting  fractions of a Share shall
be ignored.

         12. NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Option granted
under this Plan shall confer on any Optionee any right to continue in the employ
of the Company or any Parent, Subsidiary or Affiliate of the Company or limit in
any way the right of the Company or any Parent,  Subsidiary  or Affiliate of the
Company to terminate  the  Optionee's  employment  at any time,  with or without
cause.

         13.  COMPLIANCE  WITH LAWS.  The grant of Options  and the  issuance of
Shares upon  exercise of any Options  shall be subject to and  conditioned  upon
compliance with all applicable requirements of law, including without limitation
compliance with the Securities Act of 1933, as amended, any required approval by
the Commissioner of Corporations of the State of California, compliance with all
other  applicable  state securities laws and compliance with the requirements of
any stock exchange on which the Shares may be listed. The Company shall be under
no obligation to register the Shares with the SEC or to effect  compliance  with
the registration or  qualification  requirements of any state securities laws or
stock exchange.

         14.  RESTRICTIONS  ON SHARES.  At the discretion of the Committee,  the
Company  may  reserve to itself or its  assignee(s)  in the Grant (a) a right of
first  refusal  to  purchase  any  Shares  that  an  Optionee  (or a  subsequent
transferee)  may  propose  to  transfer  to a third  party  and  (b) a right  to
repurchase  all Shares held by an Optionee upon the  Optionee's  termination  of
employment or service with the Company or its Parent, Subsidiary or Affiliate of
the  Company  for any  reason  within  a  specified  time as  determined  by the
Committee at the time of grant at (i) the  Optionee's  original  purchase  price
(provided  that the right to repurchase at such price shall lapse at the rate of
at least 20% per year from the date of  grant),  (ii) the Fair  Market  Value of
such  Shares  as  determined  by the  Committee  in good  faith or (iii) a price
determined by a formula or other provision set forth in the Grant.

         15. ASSUMPTION OF OPTIONS BY SUCCESSORS.  In the event of a dissolution
or  liquidation  of the  Company,  a merger  in  which  the  Company  is not the
surviving  corporation,  or the sale of  substantially  all of the assets of the
Company,  any or all  outstanding  Options shall,  notwithstanding  any contrary
terms of the Grant,  accelerate and become exercisable in full at least ten days
prior  to  (and  shall  expire  on)  the   consummation  of  such   dissolution,
liquidation, merger or sale of stock or sale of assets on such conditions as the
Committee  shall  determine  unless  the  successor   corporation   assumes  the
outstanding  Options  or  substitutes 

                                      A-5
<PAGE>


substantially equivalent options. The aggregate Fair Market Value (determined at
the time an Option is granted) of stock with  respect to ISOs which first become
exercisable in the year of such dissolution,  liquidation, merger, sale of stock
or sale of assets cannot exceed $100,000.  Any remaining  accelerated ISOs shall
be NQSOs.

         16.  AMENDMENT OR  TERMINATION  OF PLAN.  The Committee may at any time
terminate or amend this Plan in any respect (including,  but not limited to, any
form of Grant,  agreement or instrument  to be executed  pursuant to this Plan);
provided,  however,  that the Committee  shall not,  without the approval of the
holders of a majority of the  outstanding  voting  shares of the Company,  amend
this Plan in any manner that requires such shareholder  approval pursuant to the
Code or the  regulations  promulgated  thereunder  as such  provisions  apply to
incentive  stock  option plans or pursuant to the Exchange Act or Rule 16b-3 (or
its successor) promulgated thereunder.

         17.  TERM OF PLAN.  Options  may be granted  pursuant to this Plan from
time to time  within a period of ten years from the date this Plan is adopted by
the Board.


                                      A-6
<PAGE>

                                                                      APPENDIX B


- --------------------------------------------------------------------------------
                            INTEGRATED SYSTEMS LOGO
PROXY 
                                                                         PROXY 
                            INTEGRATED SYSTEMS, INC.

               PROXY SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
       FOR THE ANNUAL MEETING OF SHAREHOLDERS TO BE HELD ON JULY 15, 1997

     The undersigned  hereby appoints Narendra K. Gupta and William C. Smith, or
either of them,  as  proxies  and  attorneys  in fact,  each with full  power of
substitution, to represent the undersigned at the Annual Meeting of Shareholders
of  Integrated  Systems,  Inc. (the  "Company")  to be held at the Company,  201
Moffett Park Drive, Sunnyvale,  CA, 94089 on July 15, 1997 at 2:00 p.m., and any
adjournments  or  postponements  thereof,  and to vote the  number of shares the
undersigned would be entitled to vote if personally present at the meeting.

     UNLESS A CONTRARY DIRECTION IS INDICATED,  THIS PROXY WILL BE VOTED FOR ALL
NOMINEES  LISTED IN PROPOSAL 1 AND FOR  PROPOSALS  2 AND 3 AS MORE  SPECIFICALLY
DESCRIBED IN THE PROXY STATEMENT.  IF SPECIFIC INSTRUCTIONS ARE INDICATED,  THIS
PROXY WILL BE VOTED IN ACCORDANCE  THEREWITH.  In their discretion,  the proxies
are  authorized to vote upon such other business as may properly come before the
meeting or any  adjournment  thereof to the extent  authorized  by Rule 14a-4(c)
promulgated by the Securities and Exchange Commission.

                (Continued, and to be signed on the other side)

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

<PAGE>
<TABLE>
<CAPTION>
<S>                                                           <C>
- ----------------------------------------------------------------------------------------------------------------------------------
                                                              [X]    Please mark
                                                                      your votes
                                                                       as this


MANAGEMENT RECOMMENDS A VOTE FOR ALL THE
NOMINEES FOR DIRECTOR LISTED BELOW AND A
VOTE FOR PROPOSALS 2 AND 3.
                                                 WITHHOLD 
PROPOSAL 1: To elect  directors  to hold   FOR*   FOR ALL                                               FOR      AGAINST   ABSTAIN 
office until the next Annual  Meeting of   [  ]    [  ]   PROPOSAL 2. To approve the  amendment to      [  ]      [  ]       [   ] 
Shareholders  and until their successors                  the 1988 Stock Option Plan.                                              
are elected.                                                                                                                       
                                                          PROPOSAL 3: To ratify the  selection  of                                 
Nominees:  Narendra  K.  Gupta,  John C.                  Coopers  &  Lybrand  as  the   Company's      [  ]      [  ]       [   ] 
Bolger,  Vinita Gupta,  Thomas  Kailath,                  independent public accountants.                                          
Richard  C.  Murphy  and  David  P.  St.                                                                                           
Charles                                                   

To  withhold  authority  to vote for any
nominee(s),   write   such   nominee(s)'
name(s) below.

- ----------------------------------------              
                                                          Sign exactly as name(s) appears on your stock  certificate.  If shares 
I PLAN TO ATTEND THE MEETING                   [  ]       of stock stand of record in the names of two or more persons or in the 
                                                          name of husband and wife, whether as joint tenants or otherwise,  both 
                                                          or all of such persons should sign the above Proxy. If shares of stock 
                                                          are held of record by a  corporation,  the Proxy should be executed by 
                                                          the  President  or Vice  President  and  the  Secretary  or  Assistant 
                                                          Secretary.  Executors  or  administrators  or  other  fiduciaries  who 
                                                          execute the above Proxy for a deceased  Shareholder  should give their 
                                                          full title. Please date the Proxy.                                     
                                                          
Signature(s) ___________________________________________________________________________________         Date __________________
WHETHER  OR NOT YOU PLAN TO ATTEND  THE  MEETING IN  PERSON,  YOU ARE URGED TO SIGN AND  PROMPTLY  MAIL THIS PROXY IN THE RETURN
ENVELOPE SO THAT YOUR STOCK MAY BE REPRESENTED AT THE MEETING.
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>





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