INTEGRATED SYSTEMS INC
10-K, 1998-05-29
PREPACKAGED SOFTWARE
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                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                   Form 10-K

[X]    Annual report pursuant to Section 13 or 15(d) of the Securities  Exchange
       Act of 1934 for fiscal year ended February 28, 1998 or

[ ]    Transition  report  pursuant to Section 13 or 15(d) of the  Securities
       Exchange Act of 1934

                        Commission file number: 0-18268

                            Integrated Systems, Inc.
             (Exact name of Registrant as specified in its charter)

           California                                      94-2658153
  (State or other jurisdiction of                      (I.R.S. employer
    incorporation or organization)                    identification number)

                             201 Moffett Park Drive
                              Sunnyvale, CA 94089
                                 (408) 542 1500

       (Address, including zip code, of Registrant's principal executive
        offices and Registrant's telephone number, including area code)

        Securities registered pursuant to Section 12(b) of the Act: None

    Securities registered pursuant to Section 12(g) of the Act: Common Stock

Indicate by check mark whether the Registrant (1) has filed all reports required
to be filed by  Sections  13 or 15(d)  of the  Securities  Exchange  Act of 1934
during the preceding 12 months (or for such shorter  period that the  Registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements  for the past 90 days.  Yes [X]  No [ ]

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of Registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

As of April 30,  1998,  the  aggregate  market  value of the voting stock of the
Registrant  held by  non-affiliates  of the  Registrant  was  $333,088,952.  The
aggregate  market value was  computed by  reference to the closing  price of the
common stock on the Nasdaq National Market on April 30, 1998.

As of April 30, 1998, there were 23,479,087 shares of Registrant's  common stock
outstanding.

                      DOCUMENTS INCORPORATED BY REFERENCE

Portions of  Registrant's  definitive  Proxy Statement for its Annual Meeting of
Shareholders to be held July 15, 1998 are  incorporated by reference in Part III
hereof.
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<PAGE>

<TABLE>
Table of Contents

<CAPTION>
Integrated Systems, Inc.
1998 Form 10-K Annual Report

Part I
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<S>                                                                                                 <C>
Item 1.   Business                                                                                    1
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Item 2.   Properties                                                                                 17
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Item 3.   Legal Proceedings                                                                          17
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Item 4.   Submission of Matters to a Vote of Security Holders                                        18
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Item 4a.  Executive Officers of the Registrant                                                       18
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Part II
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Item 5.   Market for the Registrant's Common Equity and Related Stockholder Matters                  20
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Item 6.   Selected Financial Data                                                                    20
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Item 7.   Management's Discussion and Analysis of Financial Condition and Results of Operations      22
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Item 7a.  Quantitative and Qualitative Disclosures About Market Risks                                28
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Item 8.   Financial Statements and Supplementary Data                                                28
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Item 9.   Changes in and Disagreements with Accountants on Accounting and Financial Disclosures      28
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Part III
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Item 10.  Directors and Executive Officers of the Registrant                                         29
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Item 11.  Executive Compensation                                                                     29
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Item 12.  Security Ownership of Certain Beneficial Owners and Management                             29
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Item 13.  Certain Relationships and Related Transactions                                             29
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Part IV
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Item 14.  Exhibits, Financial Statements, Schedule and Reports on Form 8-K                           30
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Signatures                                                                                           53
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</TABLE>



<PAGE>


Part I


This Report contains  forward-looking  statements (within the meaning of Section
27A of the Securities Act of 1933, as amended (the "Securities Act") and Section
21E of the  Securities  Exchange Act of 1934, as amended (the  "Exchange  Act"))
regarding  the  Company  and  its  business,  financial  condition,  results  of
operations and  prospects.  Words such as "expects,"  "anticipates,"  "intends,"
"plans,"  "believes," "seeks," "estimates" and similar expressions or variations
of such words are intended to identify forward-looking  statements,  but are not
the exclusive  means of identifying  forward-looking  statements in this Report.
Additionally,  statements  concerning  future  matters  such  as  the  features,
benefits and  advantages  of the  Company's  products,  trends in the  Company's
target markets, the Company's business and sales strategies,  the development of
new products,  enhancements  or  technologies,  matters  relating to proprietary
rights, competition and facilities needs, and other statements regarding matters
that are not historical are forward-looking statements.

Although  forward-looking  statements  in this  Report  reflect  the good  faith
judgment of the Company's management, such statements can only be based on facts
and  factors  currently  known  by the  Company.  Consequently,  forward-looking
statements are inherently subject to risks and uncertainties, and actual results
and outcomes may differ  materially  from the results and outcomes  discussed in
the forward-looking  statements.  Factors that could cause or contribute to such
differences in results and outcomes  include without  limitation those discussed
below as well as those discussed elsewhere in this Report. Readers are urged not
to place undue reliance on these forward-looking statements, which speak only as
of the date of this Report.  The Company  undertakes  no obligation to revise or
update  any  forward-looking  statements  in  order  to  reflect  any  event  or
circumstance that may arise after the date of this Report.  Readers are urged to
review and consider  carefully  the various  disclosures  made by the Company in
this  Report,  which  attempts  to advise  interested  parties  of the risks and
factors that may affect the Company's business,  financial condition and results
of operations.


Item 1. Business.

Integrated  Systems,  Inc.  ("ISI"  or  the  "Company")  provides  comprehensive
solutions of software  products and engineering  services for the development of
embedded  microprocessor-based  applications for the real-time embedded computer
market. The real-time embedded computer market is being driven by the increasing
demand for low-cost,  high-performance,  enhanced-functionality  devices.  These
devices,  using the 32-bit embedded  microprocessor,  are increasingly requiring
complex  software  applications  in  order  to  address  the  functionality  and
intelligence that the market demands.

ISI offers a solution for embedded software  development that consists of design
and  development  tools,   real-time  operating  system  ("RTOS")  software  and
components,  application  enablers,  and design  services.  ISI's  products  are
designed  to enable  users to  accelerate  the design,  development,  debugging,
implementation and maintenance of embedded software. ISI's products and services
reduce the expense  associated with embedded software and system development and
enable  customers to develop systems that have greater  functionality,  enhanced
performance,  improved reliability and ease of use. ISI markets and supports its
products and provides  services on a worldwide  basis to a variety of users in a
broad range of industries,  including  telecommunications,  data communications,
automotive,  digital office and consumer  electronics.  ISI was  incorporated in
California in February 1980.


pRISM+(TM),   pSOSystem(R),   pSOS+(R)  ,  pSOS+m(TM),  SNiFF+(TM),  MATRIXx(R),
AutoCode(R),   BetterState(TM),   SystemBuild(TM),   Xmath(TM),  DocumentIt(TM),
RealSim(TM),  pRPC+(TM),  pHILE+(TM)  and  pREPC+(TM)  are either  trademarks or
registered  trademarks of Integrated Systems, Inc. All other trademarks or trade
names referred to in this report are the property of their respective owners.

                                                                               1

<PAGE>


Item 1. Business

INDUSTRY  BACKGROUND  Embedded  systems consist of one or more  microprocessors,
peripheral  devices and related software  dedicated to a specialized task or set
of tasks.  Embedded  systems are found in many common  products such as cellular
telephones,  automobiles,  facsimile  machines  and gas  pumps.  Many  of  these
products  require  real-time  embedded  software  that  provides  an  immediate,
predictable  response  to  unpredictable  sequences  of  external  events  under
deadlines.  For  example,  the  embedded  system that  controls the engine in an
automobile  must set  airflow,  fuel  quantity,  spark  advance and other engine
parameters  for each cycle within  milliseconds  based on engine  speed,  engine
temperature,  atmospheric  conditions  and  accelerator  position  in  order  to
optimize fuel efficiency, emissions control and responsiveness.

With  the  advent  of more  powerful,  low-cost,  application-specific  embedded
processors,  embedded  systems  are  being  used in, or with,  a wider  range of
applications.   Embedded  systems  are  found  in  telecommunications  and  data
communications  products  such as  routers,  access  devices  and  switches;  in
automotive products such as engine controllers and anti-lock braking systems; in
digital office products such as printers,  copiers and point-of-sale  terminals;
and in  consumer  electronics  products  such as  digital  video  broadcast  and
security systems. Embedded Internet applications for interactive  entertainment,
network  computers,  remote  maintenance and other areas offer the potential for
significant new opportunities for embedded systems.

Embedded systems are increasingly based upon 32-bit  microprocessors,  which run
significantly larger and more sophisticated  application  software. In addition,
the cost of 32-bit microprocessors has decreased substantially,  thereby opening
new  markets  for  high-volume  embedded  applications  that  can  now  be  cost
justified.  As a result,  32-bit  microprocessors  represent the fastest growing
segment of the embedded  microprocessor  industry.  The  complexity  and size of
these new  software  applications  and the  proliferation  of multiple  types of
microprocessors  require a more substantial  engineering  effort,  necessitating
more sophisticated embedded software design and development tools and RTOSs.

Many  developers  of  embedded  systems  are  seeking  to  improve   engineering
productivity by standardizing on off-the-shelf  third-party software in order to
increase   developer   productivity,   reduce   design   cycle   cost,   shorten
time-to-market  and  deliver   high-quality   reliable  product.   In  addition,
developers  place  a high  degree  of  importance  on  high-quality  development
environments  and operating  systems,  and in having access to strong  technical
support  resources.  With  productivity  becoming a key strategic issue,  senior
managers for division- or company-wide  deployment are  increasingly  evaluating
the  selection  of  embedded   software   development   environments  with  RTOS
technology. ISI believes that more organizations will need to replace internally
developed  tools with  commercial  products  and to  standardize  on  integrated
enterprise-wide solutions that are reliable,  intuitive, scalable for simple and
complex application development, suited for small to large development teams and
available on the industry-leading platforms and targets.

THE  INTEGRATED  SYSTEMS  SOLUTION ISI offers a solution  for embedded  software
development  that consists of design and  development  tools,  RTOS software and
components, application enablers, and design services. The ISI solution is built
upon pRISM+(TM),  a software  development  environment for embedded  application
development.  The pRISM+ environment contains three functional groups:  software
design  and   development   tools,   embedded  RTOS   software  and   components
(pSOSystem(R)),  and application enablers. The pRISM+ environment is targeted to
provide comprehensive solutions for the telecommunications, data communications,
automotive,  digital office and consumer electronics markets.  ISI's engineering
services  group  offers core  competencies  in areas such as  embedded  software
design  and   implementation,   hardware   drivers  and  board  support  package
development,  rapid system prototyping,  Application Specific Integrated Circuit
("ASIC") design and development,  Windows(R) system

2

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and application programming, test and certification, production engineering, and
customized  hands-on  training.  These  services  have  allowed ISI to offer its
customers complete turnkey solutions.

ISI's   products  are  designed  to  enable  users  to  accelerate  the  design,
development,  debugging, implementation and maintenance of embedded software and
to  develop  systems  that have  greater  functionality,  enhanced  performance,
improved  reliability  and  ease of use.  ISI's  products  offer  the  following
benefits to the embedded development community:

Productivity.  ISI's pRISM+ development  environment provides developers with an
integrated  platform  containing  the tools  needed for the  essential  steps in
embedded  application  development,  from source code design and  development to
deployment.  The  pRISM+  environment  is  intuitive,  operating  system  aware,
suitable  for small to large  development  teams,  able to  support  distributed
development and is available on industry-leading platforms and targets.

Performance.  Each  tool in the  pRISM+  environment  is  designed  to help  the
embedded  developer  create  high-performance  applications.  The  compilers are
optimized  to the  target  processors,  the  source  level  debuggers  have full
knowledge of the operating system (pSOSystem), the target analysis tools capture
and analyze run-time information, the source code comprehension tool facilitates
source  code  understanding  and  pSOSystem  provides  a  small,  deterministic,
real-time, high-performance operating system.

Reliability.  ISI's pSOSystem  operating  system is highly  reliable,  making it
suitable for deeply  embedded  applications  where human  intervention to remedy
software   operating  problems  is  not  feasible.   High  reliability   reduces
maintenance   costs  and  allows  ISI's   customers  to  develop   sophisticated
mass-market products based on ISI's solution.

Scalability.  ISI's  product  architecture  is  modular,  scalable  and  readily
customizable.  ISI's pRISM+  development  environment  is suitable for simple to
complex  source code  development,  single or multiple  developers and single to
multiple  target  processor  architectures.   The  pRISM+  architecture  enables
integration  with  other  third-party  tools  for  expanded  functionality.  The
pSOSystem  operating system contained in pRISM+ is based on a scalable component
architecture that is small in size and enables the addition of component modules
for enhanced capabilities.

Suitability  For High-Volume  Applications.  ISI's pRISM+  environment  contains
pSOSystem,  a  full-featured   high-performance  operating  system  with  memory
requirements  as low as 16  Kbytes.  ISI's  pSOSystem  operating  system is very
efficient,  enabling ISI's customers to minimize hardware costs while increasing
the functionality of their application designs.

BUSINESS  STRATEGY ISI's  objective is to maintain a leadership  position in the
telecommunications, data communications, automotive, digital office and consumer
electronics markets, and to leverage its experience in embedded  applications to
enter new markets, such as Embedded Internet applications, in which ISI believes
it can  establish a leadership  position.  To achieve these  objectives,  ISI is
pursuing the following business strategy:

Maintain Technology  Leadership.  ISI's extensive expertise in embedded software
design and development  tools and RTOSs has enabled it to be a technology leader
in the embedded  software  development  market.  ISI seeks to capitalize on this
existing  technology  base to accelerate  the  development  of new products that
leverage the features of its existing product lines. ISI intends to maintain its
technological  leadership  through rapid response to emerging  opportunities and
customer requirements, by continuing to make significant investments in research
and  development,  and  continuing to enhance the  architecture  of its software
development environment and operating system software.

                                                                               3

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Item 1. Business

Offer Comprehensive Solutions. ISI's products and services offer a comprehensive
solution  to  users  of  embedded  microprocessors.   This  approach  simplifies
customers' purchasing decisions,  eliminates the need for customers to integrate
products from multiple  sources,  improves  customer  support,  accelerates  the
integration  of ISI's  technology  into  customers'  products  and allows  ISI's
products to be used  effectively by less experienced  engineers.  ISI expects to
continue  to  expand  and  refine  its  solution  through  internal  development
activities and strategic acquisitions.

Maintain Market Focus. While ISI's products and services are suitable for a wide
variety of  applications  and are sold to a broad  range of  customers,  ISI has
particularly   focused   its   development   and   marketing   efforts   on  the
telecommunications, data communications, automotive, digital office and consumer
electronics  markets.  ISI has  developed a suite of  products to address  these
markets in order to achieve deeper  penetration,  as well as to provide products
that reduce the time and expense associated with system  development.  ISI seeks
to participate  in the rapid growth of low-cost,  high-volume  applications  for
embedded  systems  through  run-time  license  arrangements  with its customers.
Run-time  license  arrangements  generally  result in a license fee based on the
number of products sold that incorporate ISI's products.

Address  Emerging  Market  Opportunities.  From  time  to  time,  ISI  evaluates
strategic  opportunities  and applies its technology to develop products for new
markets  more  quickly.  ISI believes its products and services are suitable for
emerging  markets  because  its  products  are  scalable,  reliable  and rapidly
re-configurable.

Provide Portability and Support for  Industry-Leading  Embedded  Microprocessors
and Host Platforms.  ISI has expended significant resources to make its products
available   on  a  broad   range  of  host   platforms   and   32-bit   embedded
microprocessors.  This has  allowed  ISI to sell into a wide  range of  markets.
Because large  companies use a range of host platforms and  microprocessors,  it
also makes it possible for large customers to standardize on ISI's solution.

PRODUCTS AND SERVICES  ISI offers a solution for embedded  software  development
that consists of design and  development  tools,  RTOS software and  components,
application enablers, and design services. ISI's primary product line is pRISM+,
a  comprehensive  software  development  environment  for  embedded  application
development.  The pRISM+ environment contains three functional groups:  software
design and development tools, embedded RTOS software and components (pSOSystem),
and  application  enablers.  The  pRISM+  environment  is  reliable,  intuitive,
scalable  for simple and complex  application  development,  suited for small to
large  development  teams, and available on the  industry-leading  platforms and
targets. The pRISM+ environment is targeted to provide  comprehensive  solutions
for the telecommunications,  data communications, automotive, digital office and
consumer electronics markets.

The pRISM+ environment supports  Microsoft(R) Windows NT(R), Windows 95 and UNIX
host  platforms  and the  industry-leading  Motorola  68xxx ("68K") and PowerPC,
MIPS, ARM and Intel x86 target  processors.  The pSOSystem  operating  system is
also supported on i960, Hitachi SH, Coldfire and Mitsubishi M32R processors. ISI
expects to continue to port pRISM+ for pSOSystem to other emerging processors.

Software Design and Development Tools. ISI offers a comprehensive environment to
support the design and  development  of embedded  software  applications.  ISI's
design  and  development  tools  include  optimized   compilers,   source  level
debuggers,  run-time analyzers,  a source code comprehension tool, interfaces to
configuration  management and version control tools,  specialized control design
software,   statechart   modeling,   simulation,   automated   code   generation
capabilities,  and  documentation  tools. The pRISM+  environment is architected
with the open,  industry-standard  Common  Object  Request  Broker  Architecture
("CORBA") bus, enabling integration of third-party tools for expansion of design
and development capabilities.

4

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Compilers. The pRISM+ compilers are specifically chosen for their performance in
embedded  systems   applications,   are  integrated  with  pSOSystem,   and  are
performance-tuned for specific target processors.

Debuggers and Run-time  Analysis.  pRISM+  supplies a  source-level  debugger in
conjunction  with run-time target analysis tools.  The pRISM+  debuggers  supply
embedded developers with basic and advanced debugging options.  The ISI run-time
analysis  tools  like  ESp and the  Object  Browser  provide  detailed  run-time
analysis  and  debug  information.  These  run-time  tools  monitor  and  record
information  about the dynamic behavior of the run-time  application,  providing
and  displaying  information  such as the  execution of operating  system tasks,
component  configurations,  memory  stack usage and  errors,  static and dynamic
views of all kernel objects, user specified events and CPU use graphs.

Source Code  Comprehension.  The SNiFF+(TM)  tool within the pRISM+  environment
provides   advanced,   object-oriented   comprehensive   source  code   analysis
capabilities, such as symbol, hierarchy and class browsers, component analyzers,
and cross  referencing  tools.  The  SNiFF+  tool is  ideally  suited  for large
development teams and complex application development.

Control  Design,  Modeling and Simulation.  ISI's control  design,  modeling and
simulation-based  product line, called MATRIXx(R),  includes tools for analysis,
design,  simulation and prototyping.  Products and modules in the MATRIXx family
consist  of   SystemBuild(TM),   Xmath(TM),   AutoCode(R),   DocumentIt(TM)  and
RealSim(TM).

   SystemBuild  is  a  system  modeling  and  simulation  tool  used  to  create
   interactive,  dynamic system models that include plant dynamics and real-time
   software  logic.  SystemBuild  includes a  hierarchical  block diagram editor
   which supports  high-fidelity  process behavioral  modeling,  visual software
   specification,  simulation-based verification and validation,  application of
   advanced analysis and design techniques, an open architecture environment and
   seamless integration with AutoCode (the MATRIXx automated code generator).

   Xmath  is a  mathematically-based  engineering  analysis,  visualization  and
   scripting  tool  that  provides   analysis   capabilities,   plot  generation
   facilities and  specialized  function  libraries for control  design,  robust
   control,  optimization,  digital signal processing, system identification and
   model reduction applications. Xmath complements the SystemBuild tool.

   AutoCode  automatically  generates programming code from SystemBuild diagrams
   in  the C or Ada  languages.  AutoCode  is  optimized  for  size,  speed  and
   calibration,  and can be  implemented  on a RTOS  (pSOSystem  or  others),  a
   microcontroller or other targets using the customizable  template programming
   capability.

   DocumentIt  software further  accelerates the design process by automatically
   incorporating information about a design into a documentation format.

   RealSim Series prototyping tools complete the MATRIXx family by providing the
   software and real-time  computing  hardware to verify an  application  in its
   intended  environment.  C or Ada code  generated in the AutoCode  environment
   automatically loads and runs on the RealSim Series hardware.

Statecharts. Statecharts provide a method for designing and implementing complex
event-based systems.  ISI's BetterState(TM) tool enables the user to graphically
specify the application  behavioral model and generate  optimized source code in
C, C++, Java and other languages, including support for pSOSystem.

Embedded  Operating  Software and Components.  ISI's embedded operating software
consists of the pSOSystem  operating  system and special purpose  components and
modules.  The pSOSystem  operating system is a part of

                                                                               5

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Item 1. Business

ISI's pRISM+ development environment.  pSOSystem is a modular, high-performance,
RTOS  designed  specifically  for  embedded   microprocessors.   It  provides  a
multi-tasking  environment based on open systems standards, such as network file
system support. pSOSystem is designed for performance,  reliability,  efficiency
and ease-of-use on either custom or commercial hardware. pSOSystem consists of a
kernel,   pSOS+(R)  and  its  key   components.   pSOS+  is  a   priority-based,
interrupt-oriented,  multitasking  kernel  that is small in size  (requiring  as
little  as 16 Kbytes  of  storage).  ISI also  offers a  multiprocessing  kernel
version, called pSOS+m(TM),  that operates on tightly coupled or loosely coupled
microprocessors. In addition to the kernel, ISI offers a collection of companion
software components. These components include pRPC+(TM), a remote procedure call
library;  pHILE+(TM), a file system manager;  pREPC+(TM), an ANSI C library; and
others. The component  technology is combined with a hardware  abstraction layer
to isolate the pSOSystem components and application from the underlying hardware
in order to protect the processor and peripheral hardware against  obsolescence.
pRISM+ for  pSOSystem is currently  available  for the Motorola 68K and PowerPC,
MIPS,  ARM and Intel x86  processors  and is  expected  to be  available  on the
Mitsubishi M32R. pSOSystem is currently available,  without pRISM+, on the i960,
Hitachi SH, Coldfire and Mitsubishi M32R  processors.  ISIexpects to continue to
port pRISM+ for pSOSystem to other emerging processors.

Application  Enablers.  Application  enablers are emerging as a  requirement  in
embedded  systems  development.  Already  provided  under names such as software
components  and  reusable  modules,  software  application  enablers  are  basic
building  blocks which can be reused  often.  ISI believes  that it must provide
customers with the latest application enablers for their specific markets. ISI's
pRISM+  development  environment  offers support for targeted  application areas
through  application-specific  enablers.  These  enablers  include  support  for
industry requirements as well as emerging trends, like networking management and
network security.

ISI  offers  an  extensive  array  of  networking  application  enablers.  ISI's
networking products enable users to develop applications in the areas of network
and Web  management,  security,  monitoring  and routing  technologies.  The ISI
networking  products provide the user with portable Remote  Monitoring  ("RMON")
network  monitoring,  Web/HTTP and Simple Network  Management  Protocol ("SNMP")
browser  management,  TCP/IP protocol stacks,  OSFP2/RIP2/BGP4  routing and SNMP
management  technology.  These  networking  enablers are  available in binary or
portable source code formats for use with pRISM+ for pSOSystem and other RTOSs.

Engineering  Services.  In addition to the products  described above, ISI offers
engineering services and co-sourcing support to its customers. ISI's engineering
services  group  leverages  their  expertise  in the  embedded  development  and
real-time computer markets and their knowledge of ISI's or other  third-parties'
tools to provide solutions for ISI's customers. ISI's engineering services group
offers  core  competencies  in  areas  such  as  embedded  software  design  and
implementation,  hardware drivers and board support package  development,  rapid
system prototyping, ASIC design and development,  Windows system and application
programming,  test and  certification,  production  engineering,  and customized
hands-on  training.  Engineering  services projects can last from a few weeks to
several years and are generally performed on a time-and-material  or fixed-price
basis.

SALES AND  SUPPORT ISI markets its  products  primarily  through a direct  sales
force.  ISI  believes  that use of a direct  sales force allows ISI to influence
customer purchasing decisions,  to provide superior support to its customers and
to better understand  evolving customer needs. ISI currently uses a direct sales
force  in  the  Americas,  Western  Europe,  Israel,  Japan,  India  and  Korea.
Distributors and sales representatives are used in certain countries.

ISI's direct sales  organization in North America  operates through more than 20
United  States  sales  offices.  Direct sales  managers  are  supported by field
application  engineers who are experts in the embedded market and ISI's

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products and  technologies.  In  addition,  a small  telemarketing  organization
focuses on selling  maintenance and renewal  contracts,  licensing  lower-priced
products and licensing to universities.

International  sales are  supported by a direct sales force that  operates  from
subsidiaries based in Austria,  Canada, France,  Germany,  Israel, Japan, Italy,
Sweden and the United Kingdom,  together with sales and support offices in Korea
and India. The sales and support personnel in these subsidiaries and offices are
complemented  by  distributors  and sales  representatives  that address certain
geographical areas, market segments or product families.  Sales  representatives
and distributors  market and support ISI's products in Australia,  China, Taiwan
and other countries in Asia.

ISI's  software  development  environment  is  generally  licensed on a per-seat
basis, with the RTOS licensed on a per-project basis.  Run-time license fees are
typically  charged  on a  per-unit  basis  when the  customer's  application  is
deployed. List prices for ISI's software development tools and RTOSs development
licenses generally range from less than $5,000 to over $100,000,  with a typical
single-user  development  license averaging between $15,000 and $20,000.  Prices
for  run-time  license fees  generally  range from less than $1 per unit to over
$100 per unit depending, in part, on production quantities.

Approximately  34%,  38% and 41% of ISI's total  revenue was derived  from sales
outside of North America in fiscal years 1996, 1997 and 1998,  respectively.  No
single  customer  accounted  for more than 10% of ISI's total  revenue in fiscal
year  1996,  fiscal  year 1997 and  fiscal  year  1998.  ISI  continues  to make
investments in developing its  distribution  and support  channels outside North
America to increase the percentage of revenue derived from international  sales.
There can be no assurance that changes from  distribution  sales to direct sales
or these  additional  investments  will  lead to  increased  revenue.  See "Risk
Factors--Risks Associated with International Operations."

PRODUCT  DEVELOPMENT ISI's product  development  activities address the needs of
the  market   segments   upon  which  ISI   focuses   by   providing   an  open,
industry-standard  software development  environment for embedded  applications.
ISI seeks to continue to enhance the functionality and performance of its pRISM+
for pSOSystem  product lines,  while  increasingly  targeting  specific vertical
markets and providing tailored market solutions. ISI's product development seeks
to port pRISM+ for pSOSystem to emerging high-volume microprocessors, to add new
products  and modules to ISI's  existing  product  lines,  to create  interfaces
between ISI's products and other design and software  development  tools, and to
provide the end user with comprehensive development solutions.

ISI attempts to release  upgrades and to introduce  new products or modules on a
regular  basis.  In  connection  with each  release,  ISI works closely with its
customers to define  improvements and  enhancements for potential  incorporation
into future releases of the product. This approach includes customer feedback in
ISI's  product  design  process,  as well as in the  evaluation  stage,  thereby
permitting   customers  to  influence   functionality  early  in  the  product's
life-cycle. ISI believes that its engineering services group provides ISI with a
competitive  advantage  for  product  development  by  defining  needs  for  new
products,  guiding  future  enhancements  and  testing new  implementations.  In
addition, this group contracts with customers to research new methodologies that
can serve as prototypes  for new features,  products or modules.  As of February
28, 1998, ISI employed 139 engineers in the product  development group and 82 in
the  engineering  services group.  ISI's  engineers  include experts in software
engineering,   software  development  tools,   multimedia,   telecommunications,
real-time controls and operating systems technology.

For fiscal years 1996, 1997 and 1998,  ISI's research and  development  expenses
were  approximately  $11.4 million,  $17.3 million and $18.8 million or 13%, 16%
and 15% of its total revenue,  respectively.  ISI  capitalizes  certain costs

                                                                               7

<PAGE>


Item 1. Business

of  developing  computer  software  to be  licensed  or  otherwise  marketed  to
customers in accordance with Statement of Financial  Accounting Standards No. 86
("SFAS No.  86"),  "Accounting  for the Costs of  Computer  Software to be Sold,
Leased  or  Otherwise   Marketed."  ISI  capitalized   approximately   $335,000,
$1,540,000 and $1,344,000 of research and  development  expenditures  related to
the  development  of  software  products in fiscal  years  1996,  1997 and 1998,
respectively.  The amounts capitalized represented  approximately 3%, 8% and 7%,
respectively,  of total research and development  expenditures  for fiscal years
1996,  1997 and 1998.  Such  capitalized  costs are  being  amortized  using the
greater of the amount computed using the ratio that current gross revenues for a
product bear to the total of current and  anticipated  future gross revenues for
that product,  or on a straight-line  basis over three years.  Amortization  for
fiscal  years  1996,  1997  and  1998  was  $921,000,   $968,000  and  $949,000,
respectively.  The amount of research and development  expenses capitalized in a
given time period  depends  upon the nature of the  development  performed  and,
accordingly, amounts capitalized may vary from period to period.

The market for embedded  applications  is  fragmented  and is  characterized  by
ongoing  technological  developments,  evolving  industry  standards  and  rapid
changes in customer  requirements.  ISI's  success  depends  upon its ability to
continue to develop and introduce,  in a timely  manner,  new products that take
advantage of technological advances, to continue to enhance its existing product
lines, to offer its products across a spectrum of  microprocessor  families used
in  the  embedded   systems  market  and  to  respond   promptly  to  customers'
requirements.  ISI must  continuously  update its existing products to keep them
current with changing technology and must develop new products to take advantage
of new technologies that could render ISI's existing products  obsolete.  ISIhas
experienced  delays in the  development  of new products and the  enhancement of
existing products.  Such delays are commonplace in the software industry and are
likely to be experienced by ISIin the future. ISI's future prospects depend upon
ISI's  ability to increase the  functionality  of existing  products in a timely
manner and to develop new  products  that address new  technologies  and achieve
market acceptance. New products and enhancements must keep pace with competitive
offerings,   adapt  to  evolving  industry   standards  and  provide  additional
functionality.  There  can be no  assurance  that  ISI  will  be  successful  in
developing and  marketing,  on a timely basis or at all,  competitive  products,
product  enhancements  and new products  that respond to  technological  change,
changes in customer requirements and emerging industry standards,  or that ISI's
enhanced or new  products  will  adequately  address the  changing  needs of the
marketplace.  The inability of ISI, due to resource constraints or technological
or other reasons, to develop and introduce new products or product  enhancements
in a timely  manner  could have a  material  adverse  effect on ISI's  business,
financial  condition and results of  operations.  From time to time,  ISI or its
competitors may announce new products,  capabilities  or technologies  that have
the potential to replace or shorten the life cycles of ISI's existing  products.
There can be no assurance that  announcements of currently  planned or other new
products will not cause customers to defer purchasing existing ISI products. Any
failure  by  ISI  to  anticipate  or  respond   adequately  to  changing  market
conditions,  or any significant  delays in product  development or introduction,
would have a material adverse effect on ISI's business,  financial condition and
results  of  operations.  If the  results  of product  development  efforts  are
inadequate  or  delayed,  ISI's  business,  financial  condition  and results of
operations  would be materially  adversely  affected.  See "Risk  Factors--Risks
Associated with New or Emerging Markets."

COMPETITION The market for  commercially  available  software tools and embedded
operating  systems is fragmented,  highly  competitive and is  characterized  by
pressures to incorporate  new features and accelerate the release of new product
versions.  ISI's products compete with software developed internally by embedded
systems  manufacturers  and  software  offered  by  other  third  parties.  Many
organizations  that  internally  develop  and  maintain  RTOSs have  substantial
programming resources and can develop specific products for their needs. Many of
these

8

<PAGE>


companies have significant  investments in their existing software and there can
be no  assurance  that  ISI  will be able to  persuade  existing  and  potential
customers  to replace or augment  their  internally  developed  RTOSs with ISI's
products.

ISI's principal  competitors for third-party  embedded software  development and
related tools (pRISM+ for  pSOSystem) are Wind River  Systems,  Inc.,  Microsoft
Corporation,  Sun Microsystems,  Inc., Microware Systems Corporation and several
privately held  companies.  The MATRIXx  product  family  competes with products
offered by Mathworks  Incorporated,  a privately  held company,  and a number of
other companies that provide design and analysis,  modeling and simulation,  and
code generation products.  ISI also competes with a number of other vendors that
address one or more segments of the embedded and system design software markets.

As the industry continues to develop, ISI expects competition to increase in the
future from existing  competitors  and from other companies that may enter ISI's
existing or future markets with similar or substitute solutions that may be less
costly or provide better performance or functionality than ISI's products.  Some
of ISI's  existing  and many of its  potential  competitors  have  substantially
greater financial,  technical,  marketing and sales resources than ISI and there
can be no assurance that ISI will be able to compete  successfully against these
companies.  In  the  event  that  price  competition  increases   significantly,
competitive  pressures  could  cause ISI to reduce the  prices of its  products,
which would result in reduced profit margins.  Prolonged price competition would
have a  material  adverse  effect on ISI's  business,  financial  condition  and
results of  operations.  Also,  run-time  licenses,  which  provide for per-unit
royalty payments for each embedded system that incorporates  ISI's RTOSs, may be
subject to significant  pricing pressures.  A variety of other potential actions
by ISI's competitors, including increased promotion and accelerated introduction
of new or  enhanced  products,  could  have a material  adverse  effect on ISI's
business, financial condition and results of operations.

ISI believes that the principal bases for a customer's decision to license ISI's
products are product functionality and performance,  degree of integration, ease
of product  use,  quality of support  services  and  corporate  reputation.  ISI
believes   that   it   competes    favorably   in   these   areas.   See   "Risk
Factors--Competition."

PROPRIETARY  RIGHTS  ISI's  success is heavily  dependent  upon its  proprietary
technology.  To protect its proprietary  rights,  ISI relies on a combination of
copyright,  trade secret,  patent and trademark  laws,  nondisclosure  and other
contractual restrictions on copying and distribution and technical measures. ISI
seeks to protect its software, documentation and other written materials through
trade secret and copyright laws,  which provide only limited  protection.  There
can be no  assurance  that  patents  held  by ISI  will  not be  challenged  and
invalidated,  that patents will be issued from any of ISI's pending applications
or  that  any  claims  allowed  from  existing  or  pending  patents  will be of
sufficient scope or strength (or be issued in all countries where ISI's products
can be sold) to provide  meaningful  protection or any  commercial  advantage to
ISI.  As part of its  confidentiality  procedures,  ISI  generally  enters  into
nondisclosure  agreements  with its  employees,  consultants,  distributors  and
corporate  partners  and  limits  access to and  distribution  of its  software,
documentation  and other  proprietary  information.  End-user  licenses of ISI's
software are frequently in the form of shrink wrap license agreements, which are
not signed by licensees,  and therefore may be  unenforceable  under the laws of
many  jurisdictions.  The source code of ISI's  products is also  protected as a
trade secret and is generally not licensed to  customers.  Despite ISI's efforts
to protect its proprietary  rights,  it may be possible for  unauthorized  third
parties  to copy  ISI's  products  or to  reverse  engineer  or  obtain  and use
information  that ISI regards as  proprietary.  There can be no  assurance  that
ISI's  competitors  will  not  independently   develop   technologies  that  are
substantially   equivalent   or   superior  to  ISI's   technologies.   Policing
unauthorized  use of ISI's  products  is  difficult,  and while ISI is unable to
determine the extent to which software

                                                                               9

<PAGE>


Item 1. Business

piracy  of  its  products  exists,  software  piracy  can  be  expected  to be a
persistent problem. In addition,  effective protection of intellectual  property
rights may be unavailable or limited in certain countries.  The status of United
States patent  protection in the software  industry is not well defined and will
evolve as the  United  States  Patent and  Trademark  Office  grants  additional
patents.  Patents have been granted on fundamental technologies in software, and
patents may be issued that relate to fundamental technologies  incorporated into
ISI's products.

As the number of patents, copyrights, trademarks and other intellectual property
rights in ISI's industry  increases,  ISI's proprietary rights or products based
on its technology may  increasingly  become the subject of infringement  claims.
There can be no assurance that third parties will not assert infringement claims
against ISI in the future.  Any such  claims,  with or without  merit,  could be
time-consuming,  result in costly  litigation,  cause product shipment delays or
require  ISI to enter into  royalty or  licensing  agreements.  Such  royalty or
licensing agreements, if required, might not be available on terms acceptable to
ISI, or at all, which could have a material  adverse  effect on ISI's  business,
financial  condition and results of  operations.  In addition,  ISI may initiate
claims or litigation against third parties for infringement of ISI's proprietary
rights or to establish the validity of ISI's proprietary  rights.  Litigation to
determine  the  validity  of any  claims,  whether  or not  such  litigation  is
determined  in favor of ISI,  could  result in  significant  expense  to ISI and
divert the efforts of ISI's  technical and management  personnel from productive
tasks.  In the event of an adverse ruling in any such  litigation,  ISI might be
required to pay substantial damages,  discontinue the use and sale of infringing
products, and expend significant resources to develop non-infringing  technology
or obtain  licenses to infringing  technology.  The failure of ISI to develop or
license a substitute  technology  could have a material  adverse effect on ISI's
business, financial condition and results of operations.

ISI licenses certain software  development tool products from other companies to
distribute with its own products. The inability of such third parties to provide
competitive  products with adequate  features and high quality on a timely basis
or to provide  sales and  marketing  cooperation  could have a material  adverse
effect on ISI's  business,  financial  condition and results of  operations.  In
addition,  ISI's  products  compete with  products  produced by certain of ISI's
licensors. There can be no assurance that, upon the termination or expiration of
these licenses,  such licenses will be available on reasonable  terms or at all,
or that similar  products could be obtained to substitute  into the tool suites.
The inability to license such products  could have a material  adverse effect on
ISI's business, financial condition and results of operations.

BACKLOG ISI generally ships its products upon acceptance of a customer  purchase
order and,  therefore,  has  insignificant  product backlog.  The  insignificant
product  backlog makes it difficult to predict with accuracy  quarterly  revenue
and  quarterly  earnings  prior  to the  end of a  quarterly  reporting  period.
Engineering  services  backlog,  consisting of orders for  engineering  services
scheduled to be performed within the following twelve months,  was approximately
$7.2  million,  $10.4  million and $4.3 million at February  28, 1996,  1997 and
1998,  respectively.  Most of the  contracts  with  ISI's  engineering  services
customers are terminable at the convenience of the customer. ISI has experienced
terminations  in the past and expects  terminations  to continue to occur in the
future.

EMPLOYEES As of February 28, 1998, the Company  employed 584 persons,  including
264  in  marketing,  sales  and  support  services,  221 in  engineering  (82 in
engineering  services  and 139 in  product  development)  and 99 in  management,
administration  and finance.  Of these employees,  450 are located in the United
States  and 134 are  located at the  Company's  subsidiaries  and sales  offices
outside of the United States. In addition, from time to time the Company employs
temporary  employees  and  consultants.  None  of  the  Company's  employees  is
represented  by a labor  union  or is the  subject  of a  collective  bargaining
agreement.  The Company has never  experienced a work stoppage and believes that
its employee  relations are good.  The Company  believes its future success will
depend

10

<PAGE>


in large part upon its ability to attract and retain highly skilled  managerial,
engineering,  sales,  marketing and  operations  personnel,  many of whom are in
great demand.  Competition  for such personnel  continues to be intense in Santa
Clara County, California,  where the Company is headquartered,  and there can be
no assurance  that the Company will be successful  in  attracting  and retaining
such  personnel.  See  "Risk  Factors--Dependence  on Key  Personnel;  Need  for
Additional Personnel."

RISK FACTORS This section on "Risk Factors" includes forward-looking  statements
that reflect the Company's  current views with respect to future matters such as
factors that can affect the Company's operating results,  technological  change,
the markets for the Company's products, the Company's distribution channels, and
the  stability and  availability  of  compatible  technology.  This section also
contains  cautionary  statements  that  identify  important  factors,  including
certain risks and uncertainties,  that could cause actual results or outcomes to
differ materially from those in the  forward-looking  statements in this section
and elsewhere in this Report.

Fluctuations in Quarterly Results. The Company's quarterly operating results can
vary  significantly  depending on a number of factors,  including the volume and
timing  of  orders  received  during  the  quarter,  the mix of and  changes  in
customers to whom the Company's  products are sold, the timing and acceptance of
new products and product enhancements by the Company or its competitors, changes
in pricing, buyouts of run-time licenses,  product life cycles, the level of the
Company's  sales of  third-party  products,  purchasing  patterns of  customers,
competitive   conditions  in  the  industry,   foreign  currency  exchange  rate
fluctuations,  business  cycles  affecting  the  markets in which the  Company's
products are sold,  extraordinary  events,  such as litigation or  acquisitions,
including  related  charges,  and  economic  conditions  generally or in various
geographic  areas. All of the foregoing  factors are difficult to forecast.  The
future  operating  results of the Company may fluctuate as a result of these and
other factors, including the Company's ability to continue to develop innovative
and competitive products.

The Company historically has operated with insignificant product backlog because
its products are generally shipped as orders are received. As a result,  product
revenue in any  quarter  depends on the volume and timing of orders  received in
that  quarter.  In addition,  the Company  generally  recognizes  a  substantial
portion of its total revenue from sales orders  received and shipped in the last
two weeks of the quarter.  As such, the magnitude of quarterly  fluctuations may
not  become  evident  until  very  late in,  or after  the end of, a  particular
quarter. In addition, an increasing amount of the Company's sales orders involve
products  and  services  which  yield  revenue  over  multiple  quarters or upon
completion of performance. Because the Company's staffing and operating expenses
are based on  anticipated  total revenue  levels,  and a high  percentage of the
Company's costs are fixed in the short-term and do not vary with revenue,  small
variations   between   anticipated   orders  and  actual  orders,   as  well  as
non-recurring  or large  orders,  can cause  disproportionate  variations in the
Company's operating results from quarter to quarter.

The procurement  process of the Company's  customers typically ranges from a few
weeks to several  months or longer  from  initial  inquiry to order,  making the
timing of sales and license fees difficult to predict. Moreover, as licensing of
the Company's  products  increasingly  becomes a more strategic decision made at
higher  management  levels,  there can be no assurance that sales cycles for the
Company's  products will not lengthen.  In addition,  a portion of the Company's
revenues from services is earned pursuant to fixed price contracts. Variances in
costs  associated with those  contracts could have a material  adverse effect on
the  Company's  business and results of  operations.  The  Company's  results of
operations may also be affected by seasonal trends. While the Company's revenues
are not generally seasonal in nature, the Company's total revenue and net income
during the first fiscal quarter have  historically  been lower than the previous
fourth  fiscal  quarter for a variety of reasons,  including  customer  purchase
cycles related to expiration of budgetary  authorizations.  The Company  expects
that total  revenue and net

                                                                              11

<PAGE>


Item 1. Business

income in the first  quarter  of fiscal  year 1999 will be lower than the fourth
quarter of fiscal year 1998. In addition,  the Company's  acquisitions in fiscal
years 1996 and 1997, as well as any future acquisitions,  involve numerous risks
and could have a material  adverse effect on the Company's  business,  financial
condition and results of operations.  Due to all of the foregoing  factors,  the
Company believes that period-to-period  comparisons of its results of operations
are not necessarily meaningful and should not be relied upon as an indication of
future  performance.  During previous fiscal years,  the Company has experienced
actual performance that did not meet financial market expectations. It is likely
that, in some future  quarters,  the Company's  operating  results will again be
below the expectations of stock market analysts and investors. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations."

Rapid Technological Change;  Dependence on New Products. The market for embedded
applications  is  fragmented  and  is  characterized  by  ongoing  technological
developments,   evolving  industry  standards  and  rapid  changes  in  customer
requirements.  The  Company's  success  depends  upon its ability to continue to
develop and  introduce in a timely  manner new products  that take  advantage of
technological  advances,  to continue to enhance its existing  product lines, to
offer its  products  across a spectrum of  microprocessor  families  used in the
embedded systems market and to respond  promptly to customers'  requirements and
preferences.  The Company must continuously update its existing products to keep
them  current  with  changing  technology  and must develop new products to take
advantage of new technologies that could render the Company's  existing products
obsolete.  The Company has experienced delays in the development of new products
and the  enhancement of existing  products.  Such delays are  commonplace in the
software industry and are likely to be experienced by the Company in the future.
The Company's future prospects depend upon the Company's ability to increase the
functionality  of  existing  products  in a timely  manner  and to  develop  new
products  that  address new  technologies  and achieve  market  acceptance.  New
products and enhancements  must keep pace with competitive  offerings,  adapt to
evolving industry standards and provide additional  functionality.  There can be
no assurance that the Company will be successful in developing and marketing, on
a timely basis or at all,  competitive  products,  product  enhancements and new
products that respond to technological change,  changes in customer requirements
and emerging industry standards,  or that the Company's enhanced or new products
will adequately address the changing needs of the marketplace.  The inability of
the Company,  due to resource  constraints or technological or other reasons, to
develop and  introduce new products or product  enhancements  in a timely manner
could  have a  material  adverse  effect on the  Company's  business,  financial
condition  or  results  of  operations.  From time to time,  the  Company or its
competitors may announce new products,  capabilities  or technologies  that have
the  potential to replace or shorten the life cycles of the  Company's  existing
products.  There can be no assurance that  announcements of currently planned or
other new products will not cause customers to defer purchasing existing Company
products.  Any failure by the Company to  anticipate  or respond  adequately  to
changing market conditions,  or any significant delays in product development or
introduction,  would have a material  adverse effect on the Company's  business,
financial  condition  and  results  of  operations.  If the  results  of product
development efforts are inadequate or delayed, the Company's business, financial
condition and results of operations would be materially adversely affected.  See
"Business--Product Development."

Risks  Associated with New or Emerging  Markets.  From time to time, the Company
embarks on product  development  for new or  emerging  markets.  Currently,  the
Company is continuing  to expend  substantial  time and  financial  resources to
develop  product  lines  for  applications  that use  Internet  technology  with
embedded  microprocessors.  The Company has introduced  both embedded  operating
software  and  development  tools  for  Internet  applications.  The  commercial
Internet market has only recently begun to develop,  is rapidly  changing and

12

<PAGE>


is  characterized  by an  increasing  number of new  entrants  with  competitive
products.  It is difficult to predict  with any  assurance  whether the Internet
will  prove  to be a  viable  commercial  marketplace,  or  whether  demand  for
Internet-related  products  and  services  will  increase in the future.  If the
Internet market,  or any other new market targeted by the Company in the future,
fails to develop or develops more slowly than  anticipated or becomes  saturated
with  competitors,  or if the Company's  products and services do not achieve or
sustain  market  acceptance,  the Company's  business,  financial  condition and
results   of   operations   would  be   materially   adversely   affected.   See
"Business--Product Development."

Competition.  The market for commercially  available software tools and embedded
operating  systems is fragmented,  highly  competitive and is  characterized  by
pressures to incorporate  new features and accelerate the release of new product
versions.  The Company's products compete with software developed  internally by
embedded systems manufacturers and software offered by other third parties. Many
organizations  that  internally  develop  and  maintain  RTOSs have  substantial
programming resources and can develop specific products for their needs. Many of
these  companies have  significant  investments  in their existing  software and
there can be no assurance that the Company will be able to persuade existing and
potential customers to replace or augment their internally  developed RTOSs with
the Company's  products.  The Company's  principal  competitors  for third-party
embedded  software  development and related tools are Wind River Systems,  Inc.,
Microsoft Corporation, Sun Microsystems, Inc., Microware Systems Corporation and
several  privately held  companies.  The MATRIXx  product  family  competes with
products  offered by Mathworks  Incorporated,  a privately  held company,  and a
number of other  companies  that  provide  design  and  analysis,  modeling  and
simulation,  and code  generation  products.  The Company also  competes  with a
number of other  vendors that  address one or more  segments of the embedded and
system design software markets.

As the  industry  continues  to develop,  the  Company  expects  competition  to
increase in the future from existing  competitors  and from other companies that
may enter the  Company's  existing or future  markets with similar or substitute
solutions that may be less costly or provide better performance or functionality
than the  Company's  products.  Some of the  Company's  existing and many of its
potential competitors have substantially greater financial, technical, marketing
and sales  resources  than the  Company and there can be no  assurance  that the
Company will be able to compete  successfully  against these  companies.  In the
event that price  competition  increases  significantly,  competitive  pressures
could cause the Company to reduce the prices of its products, which would result
in reduced profit  margins.  Prolonged price  competition  would have a material
adverse  effect on the Company's  business,  financial  condition and results of
operations. Also, run-time licenses, which provide for per-unit royalty payments
for each embedded system that  incorporates  the Company's RTOSs, may be subject
to significant  pricing  pressures.  A variety of other potential actions by the
Company's   competitors,   including   increased   promotion   and   accelerated
introduction of new or enhanced  products,  could have a material adverse effect
on the Company's business,  financial  condition and results of operations.  See
"Business--Competition."

Acquisition-Related  Risks.  The Company  completed a number of  acquisitions in
fiscal  year  1996  and one in  fiscal  year  1997 and may  complete  additional
acquisitions  in the future.  The process of integrating  an acquired  company's
business  into the  Company's  operations  may  result in  unforeseen  operating
difficulties and expenditures and may absorb  significant  management  attention
that would  otherwise be available for the ongoing  development of the Company's
business.  Moreover,  there can be no assurance that the anticipated benefits of
an acquisition will be realized. Future acquisitions by the Company could result
in potentially  dilutive issuances of equity securities,  the incurrence of debt
and contingent  liabilities and  amortization  expenses  related to goodwill and
other  intangible  assets,  which  could have a material  adverse  effect on the
Company's business,  financial condition and results of

                                                                              13

<PAGE>


Item 1. Business

operations.   In  addition,   acquisitions  involve  numerous  risks,  including
difficulties in the assimilation of the operations, technologies and products of
the acquired  companies,  difficulties in managing diverse  geographic sales and
research and development operations,  the diversion of management attention from
other business  concerns,  risks of entering markets in which the Company has no
or limited  direct prior  experience  and the potential loss of key employees of
the  acquired  company.  From  time to time,  the  Company  evaluates  potential
acquisitions of businesses, products or technologies. The Company has no present
understandings,   commitments  or  agreements   with  respect  to  any  material
acquisition  of other  businesses,  products  or  technologies,  and no material
acquisition  is  currently  being  pursued  actively.  In the event that such an
acquisition were to occur, however, there can be no assurance that the Company's
business,  operating  results and  financial  condition  would not be materially
adversely  affected.  See  "Management's  Discussion  and  Analysis of Financial
Condition and Results of Operations."

Risks Associated with International  Operations.  In fiscal years 1996, 1997 and
1998, the Company derived approximately 34%, 38% and 41%,  respectively,  of its
total  revenue from sales  outside of North  America.  The Company  expects that
international  sales will continue to generate a  significant  percentage of its
total revenue in the foreseeable future. International operations are subject to
a number of special risks,  including  foreign  government  regulation,  reduced
protection of intellectual property rights, longer receivable collection periods
and greater difficulty in accounts receivable collection, unexpected changes in,
or  imposition  of,  regulatory   requirements,   tariffs,   import  and  export
restrictions  and other  barriers  and  restrictions,  potentially  adverse  tax
consequences,  the burdens of complying with a variety of foreign laws, staffing
and managing foreign operations,  general  geopolitical risks, such as political
and economic instability,  hostilities with neighboring countries and changes in
diplomatic  and  trade  relationships,  possible  recessionary  environments  in
economies  outside the United States and other factors beyond the control of the
Company. The Company generally  denominates sales to and by foreign subsidiaries
in local  currency,  and an increase in the relative value of the dollar against
such currencies, as has recently occurred, would reduce the Company's revenue in
dollar terms or make the  Company's  products  more  expensive  and,  therefore,
potentially  less competitive in foreign  markets.  In particular,  revenue from
sales in Japan during fiscal years 1997 and 1998 were adversely  affected by the
weakness  of the yen against  the  dollar.  Continued  weakness of the yen could
affect  revenue  from Japan  during  fiscal  year 1999.  The  Company has little
experience in hedging its foreign  currency sales,  but has done so on a limited
basis. There can be no assurance that the Company's future results of operations
will not be adversely affected by currency  fluctuations.  In recent months, the
currencies of many  countries in the Asia Pacific  region have lost  significant
value  against the  dollar,  notably the  currencies  of Korea and Taiwan.  As a
result, the Company's sales in these countries could be adversely affected. More
generally,  recent  instability  in the Asian  currency and stock  markets could
adversely  affect the  economic  health of the  entire  region and could have an
adverse  effect on the Company's  results of  operations.  The Company relies on
distributors  and  representatives  for sales of its products in certain foreign
countries and, accordingly, is dependent on their ability to promote and support
the  Company's  products  and, in some cases,  to  translate  them into  foreign
languages.   The  Company's   international   distributors  and  representatives
generally offer products of several different companies, including in some cases
products that are competitive with the Company's products, and such distributors
and   representatives  are  not  subject  to  any  minimum  purchase  or  resale
requirements.  There  can  be no  assurance  that  the  Company's  international
distributors  and  representatives  will  continue  to  purchase  the  Company's
products or provide  them with  adequate  levels of support.  See  "Management's
Discussion and Analysis of Financial Condition and Results of Operations."

Risks of Product Defects; Product and Other Liability;  Year 2000 Compliance. As
a result of their complexity, software products may contain undetected errors or
compatibility issues,  particularly when first introduced or as

14

<PAGE>


new versions are released.  There can be no assurance  that,  despite testing by
the Company and testing and use by current and potential customers,  errors will
not be found in new products after  commencement  of commercial  shipments.  The
occurrence of such errors could result in loss of or delay in market  acceptance
of the Company's  products,  which could have a material  adverse  effect on the
Company's  business,   financial  condition  and  results  of  operations.   The
increasing  use of the  Company's  products  for  applications  in systems  that
interact  directly  with  the  general  public,   particularly  applications  in
transportation,  medical  systems  and other  markets  where the  failure of the
embedded  system could cause  substantial  property  damage or personal  injury,
could expose the Company to significant  product  liability claims. In addition,
the Company's  products are used for applications in  mission-critical  business
systems where the failure of the embedded  system could be linked to substantial
economic loss. The Company believes that all of its most current releases of its
products will not cease to perform nor generate  incorrect or ambiguous  data or
results  solely due to a change in date to or after  January  1, 2000,  and will
calculate any information  dependent on such dates in the same manner,  and with
the same functionality,  data integrity, and performance, as such products do on
or before December 31, 1999  (collectively,  "Year 2000 Compliance").  Year 2000
Compliance  issues  may arise  with  respect  to any  modifications  made to the
Company's  products by a party other than the Company or from the combination or
use of the  Company's  products  with any other  software  programs  or hardware
devices not provided by the Company, and therefore may result in unforeseen Year
2000 Compliance problems for some of the Company's  customers,  which may have a
material  adverse  effect on the  Company's  business,  financial  condition and
results of  operations.  The  Company's  license and other  agreements  with its
customers  typically contain provisions designed to limit the Company's exposure
to potential product liability and other claims. It is likely, however, that the
limitation of liability provisions contained in the Company's agreements are not
effective in all circumstances and in all  jurisdictions.  The Company currently
does not have insurance  against product  liability risks or errors or omissions
coverage and there can be no assurance  that such insurance will be available to
the  Company on  commercially  reasonable  terms or at all. A product  liability
claim or claim for  economic  loss  brought  against the  Company,  or a product
recall involving the Company's software, could have a material adverse effect on
the  Company's   business,   financial  condition  and  results  of  operations.
Additionally,  as with any company with a computing infrastructure and utilizing
business-application  software  programs  written over many years, the Company's
internal operations may be subject to Year 2000 Compliance issues. The Company's
operations  are  dependent on its ability to protect its computer  equipment and
the  information  stored  in its  databases  against  damage  by  fire,  natural
disaster,  power loss,  telecommunications  failure,  unauthorized intrusion and
other catastrophic events. The Company believes it has taken prudent measures to
reduce the risk of  interruption  in its  operations.  However,  there can be no
assurance that these measures are sufficient.  Any damage or failure that causes
interruption in the Company's operations could have a material adverse effect on
its   business,   financial   condition,   and   results  of   operations.   See
"Business--Product Development."

Dependence on Key Personnel; Need for Additional Personnel. The Company's future
performance depends to a significant degree upon the continued  contributions of
its  key  management,  product  development,  sales,  marketing  and  operations
personnel.  The Company does not have employment  agreements with any of its key
personnel  and does not  maintain  any key person life  insurance  policies.  In
addition, the Company believes its future success will also depend in large part
upon its ability to attract and retain highly skilled  managerial,  engineering,
sales,  marketing and  operations  personnel,  many of whom are in great demand.
Competition  for such  personnel is intense in Santa Clara  County,  California,
where the  Company  is  headquartered,  and there can be no  assurance  that the
Company will be successful  in attracting  and  retaining  such  personnel.  The
failure of the Company to attract, assimilate and

                                                                              15

<PAGE>

Item 1. Business

retain the  necessary  personnel  could have a  material  adverse  effect on the
Company's  business,   financial  condition  and  results  of  operations.   See
"Business--Employees."

Limited Protection of Proprietary  Technology.  The Company's success is heavily
dependent upon its proprietary  technology.  To protect its proprietary  rights,
the Company  relies on a  combination  of copyright,  trade  secret,  patent and
trademark laws,  nondisclosure and other contractual restrictions on copying and
distribution, and technical measures. The Company seeks to protect its software,
documentation  and other  written  materials  through trade secret and copyright
laws,  which  provide only limited  protection.  There can be no assurance  that
patents held by the Company will not be challenged and invalidated, that patents
will be issued from any of the Company's pending applications or that any claims
allowed from existing or pending patents will be of sufficient scope or strength
(or be issued in all  countries  where the  Company's  products  can be sold) to
provide  meaningful  protection or any commercial  advantage to the Company.  As
part of its  confidentiality  procedures,  the  Company  generally  enters  into
nondisclosure  agreements  with its  employees,  consultants,  distributors  and
corporate  partners  and  limits  access to and  distribution  of its  software,
documentation  and  other  proprietary  information.  End-user  licenses  of the
Company's software are frequently in the form of shrink wrap license agreements,
which are not signed by licensees,  and therefore may be unenforceable under the
laws of many  jurisdictions.  The source code of the Company's  products is also
protected as a trade secret and is generally not licensed to customers.  Despite
the Company's efforts to protect its proprietary  rights, it may be possible for
unauthorized third parties to copy the Company's products or to reverse engineer
or obtain and use information that the Company regards as proprietary. There can
be no assurance that the Company's  competitors will not  independently  develop
technologies  that are  substantially  equivalent  or superior to the  Company's
technologies.  Policing unauthorized use of the Company's products is difficult,
and while the Company is unable to determine the extent to which software piracy
of its  products  exists,  software  piracy can be expected  to be a  persistent
problem. In addition,  effective protection of intellectual  property rights may
be  unavailable  or limited in certain  countries.  The status of United  States
patent  protection in the software  industry is not well defined and will evolve
as the United  States Patent and Trademark  Office  grants  additional  patents.
Patents have been granted on fundamental  technologies in software,  and patents
may be issued  that relate to  fundamental  technologies  incorporated  into the
Company's products.

As the number of patents, copyrights, trademarks and other intellectual property
rights in the Company's industry increases,  the Company's proprietary rights or
products  based  on its  technology  may  increasingly  become  the  subject  of
infringement  claims.  There can be no  assurance  that third  parties  will not
assert  infringement  claims against the Company in the future. Any such claims,
with or without merit,  could be  time-consuming,  result in costly  litigation,
cause  product  shipment  delays or require the Company to enter into royalty or
licensing agreements.  Such royalty or licensing agreements,  if required, might
not be available on terms acceptable to the Company, or at all, which could have
a material  adverse effect on the Company's  business,  financial  condition and
results  of  operations.  In  addition,  the  Company  may  initiate  claims  or
litigation  against third parties for infringement of the Company's  proprietary
rights  or to  establish  the  validity  of the  Company's  proprietary  rights.
Litigation  to  determine  the  validity  of any  claims,  whether  or not  such
litigation is determined  in favor of the Company,  could result in  significant
expense to the  Company and divert the efforts of the  Company's  technical  and
management personnel from productive tasks. In the event of an adverse ruling in
any such litigation,  the Company might be required to pay substantial  damages,
discontinue  the use and sale of  infringing  products,  and expend  significant
resources to develop non-infringing  technology or obtain licenses to infringing
technology.  The  failure of the  Company  to  develop  or license a  substitute
technology  could  have a material  adverse  effect on the  Company's  business,
financial  condition  and  results  of  operations.  See  "Business--Proprietary
Rights."

16

<PAGE>


Dependence on Licenses from Third Parties. The Company licenses certain software
development  tool  products  from other  companies  to  distribute  with its own
products.  The inability of such third parties to provide  competitive  products
with  adequate  features and high quality on a timely basis or to provide  sales
and marketing  cooperation could have a material adverse effect on the Company's
business,  financial  condition  and results of  operations.  In  addition,  the
Company's  products  compete with products  produced by certain of the Company's
licensors. There can be no assurance that, upon the termination or expiration of
these licenses,  such licenses will be available on reasonable  terms or at all,
or that similar  products could be obtained to substitute  into the tool suites.
The inability to license such products  could have a material  adverse effect on
the Company's business, financial condition and results of operations.

Volatility  of Stock  Price.  The prices  for the  Company's  common  stock have
fluctuated  widely in the past. The management of the Company believes that such
fluctuations  may have been caused by actual or  anticipated  variations  in the
Company's  operating  results,  announcements  of technical  innovations  or new
products  or services  by the  Company or its  competitors,  changes in earnings
estimates  by  securities  analysts  and other  factors,  including  changes  in
conditions of the software and other  technology  industries  in general.  Stock
markets  have  experienced  extreme  price  volatility  in  recent  years.  This
volatility  has had a  substantial  effect on the  market  prices of  securities
issued by the Company  and other high  technology  companies,  often for reasons
unrelated to the operating  performance of the specific companies.  In the past,
following  periods of volatility in the market price of a company's  securities,
securities  class action  litigation  has often been  instituted  against such a
company.  Such litigation,  if instituted  against the Company,  could result in
substantial costs and a diversion of management  attention and resources,  which
would  have a  material  adverse  effect on the  Company's  business,  financial
condition and results of operations  even if the Company were successful in such
suits.  These market  fluctuations,  as well as general economic,  political and
market  conditions such as recessions,  may adversely affect the market price of
the Company's common stock.

Financial Statements are Based on Estimates and Assumptions.  The preparation of
financial statements in conformity with generally accepted accounting principles
requires  management to make estimates and assumptions  that affect the recorded
amounts of assets and  liabilities  at the date of the financial  statements and
the  recorded  amounts of revenues  and expenses  during the  reporting  period.
Actual results could differ from those estimates.


Item 2. Properties.

In March 1996, the Company purchased for  approximately  $12.0 million in cash a
building in Sunnyvale,  California covering  approximately  150,000 square feet.
The Company  occupies  approximately  100,000  square feet of this  facility and
leases out the remaining  space. The Company leases a number of offices in North
America, Europe, Asia and Israel.


Item 3. Legal Proceedings.

In October 1997, Greenhills Software, Inc.  ("Greenhills"),  a supplier, filed a
demand for arbitration against the Company,  alleging among other things, breach
of contract,  fraud,  negligent  misrepresentation and misappropriation of trade
name. In December 1997, the Company  responded to the  arbitration  demand,  and
filed  a  counter-claim   against  Greenhills.   The  Company  believes  it  has
meritorious defenses to all claims against the Company and intends to defend the
claims vigorously.  This dispute,  however, is subject to inherent uncertainties
and thus,  there can be no assurance  that it will be resolved  favorably to the
Company  or that it will not have a  material  adverse  effect on the  Company's
consolidated financial position or results of operations.

                                                                              17

<PAGE>


Item 4. Submission of Matters to a Vote of Security Holders

The Company is subject to various legal proceedings and claims,  either asserted
or unasserted,  which arise in the ordinary course of business. While management
does not  believe  that the  outcome  of any of the  legal  matters  will have a
material adverse effect on the Company's consolidated financial position,  legal
matters  are  subject  to  inherent  uncertainties  and  thus,  there  can be no
assurance that these matters will be resolved favorably to the Company.


Item 4. Submission of Matters to a Vote of Security Holders.

Not applicable.


Item 4a. Executive Officers of the Registrant.

Name                       Age       Position
- --------------------------------------------------------------------------------
Joseph Addiego             42        Vice President, Marketing
Karen D. Auerbach          46        Vice President and General Manager, Design
                                       Automation Solutions
Phillip R. Bell            42        Vice President, Sales and Support
Narendra K. Gupta          49        Chairman of the Board of Directors and
                                       Secretary
William C. Smith           59        Vice President, Finance and Chief Financial
                                       Officer
David P. St. Charles       49        President, Chief Executive Officer and
                                       Director
David E. Stepner           53        Vice President, Research and Development
Janice E. Waterman         38        Vice President, Human Resources and
                                       Operations


Executive  officers  are chosen by and serve at the  discretion  of the Board of
Directors of the Company.

Mr.  Addiego  joined  the  Company  in April  1986.  He was  appointed  the Vice
President,  Marketing of the Company on March 30, 1998.  Prior to this position,
he was President of TakeFive  Software,  GmbH (a wholly owned  subsidiary of the
Company) since June 1, 1996. From March 1994 to May 1996, he was Vice President,
North American  Sales of the Company.  Prior to March 1994, he held a variety of
positions  with the Company in marketing and sales,  including  Vice  President,
Sales,  Design  Automation  Group from January  1992 until  February  1994.  Mr.
Addiego holds a B.S. in Business from San Francisco State University.

Ms. Auerbach was appointed Vice President and General Manager, Design Automation
Solutions  of the Company in May 1997.  Prior to May 1997,  she was Chairman and
Chief Executive Officer of Epilogue Technology Corporation  ("Epilogue"),  which
was acquired by the Company in July 1996.  She held these  positions at Epilogue
from its  formation  in 1985 to April  1997.  Ms.  Auerbach  holds a B.A. in Art
History from the University of Maryland.

Mr.  Bell  joined the  Company in  December  1997 as Vice  President,  Sales and
Support.  From  March  1997 to  November  1997,  Mr.  Bell was  Vice  President,
Worldwide  Sales and  Services  for  Structural  Dynamics  Research  Corporation
("SDRC"),  a supplier of design automation and product data management  software
and services.  Mr. Bell was Vice President,  Marketing for SDRC from May 1996 to
February 1997.  From 1984 to December  1995, Mr. Bell held various  positions at
NCR Corporation, most recently, Vice President of Global Deployment.

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  1987 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 serves
on the board 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. in Engineering from the
California  Institute of  Technology  and a Ph.D. in  Engineering  from Stanford
University.

18

<PAGE>


Mr. Smith joined the Company in January 1997 as the Chief Financial  Officer and
Vice President, Finance. From June 1995 to October 1996, Mr. Smith was the Chief
Financial  Officer and Vice  President,  Finance  for Meta  Software,  Inc.,  an
electronic design automation software company. From March 1993 to June 1995, Mr.
Smith  was the Chief  Financial  Officer  and Vice  President,  Finance  of Bell
Microproducts,  Inc., a distributor of semiconductor and computer products.  Mr.
Smith also served as the Chief Financial Officer of Wadsworth, Inc, from 1983 to
1992.  Mr.  Smith  holds a B.S.  in  Financial  Management  from San Jose  State
University and an M.B.A. from Gonzaga University.

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.  He 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.

Dr. Stepner has been Vice President,  Research and  Development  since he joined
the Company in  December  1993.  From April 1984 until March 1993,  he served as
Founder,  President and Chief  Executive  Officer of Greyhawk  Systems,  Inc., a
manufacturer of high resolution liquid crystal displays. In March 1993, Greyhawk
Systems,  Inc. was sold to AmPro Corporation and Dr. Stepner served as Executive
Vice President of AmPro  Corporation and General  Manager of the  AmPro/Greyhawk
Division  from March 1993 until  December  1993.  Dr.  Stepner  holds a B.S.  in
General  Engineering  from Brown  University  and an M.S.  and a Ph.D.,  both in
Electrical Engineering, from Stanford University.

Ms. Waterman joined the Company in July 1995 as Vice President,  Human Resources
and has served as Vice President,  Human Resources and Operations of the Company
since  March  1996.  From  September  1994  to July  1995,  she  served  as Vice
President,  Human  Resources and  Administration  for Salick Health Care Inc., a
health care  provider.  From May 1991 until  September  1994, she served as Vice
President  of  Human   Resources  and   Administration   of  Tekelec,   Inc.,  a
telecommunications company. Ms. Waterman holds a B.A. in Sociology and Economics
from the University of California at Davis and an M.S. in Industrial  Psychology
from California State University, Hayward.

                                                                              19

<PAGE>


Item 5.  Market  for the  Registrant's  Common  Equity and  Related  Stockholder
Matters

Part II

Item 5.  Market  for the  Registrant's  Common  Equity and  Related  Stockholder
Matters.

The  Company's  common stock is listed on the Nasdaq  National  Market under the
trading  symbol  INTS.  The range of high and low sale prices for the  Company's
common  stock on that market for each of the four  quarters  during the last two
fiscal years are as follows:

                                Q1           Q2            Q3           Q4
- --------------------------------------------------------------------------------
FY98   High              $  24.500    $  18.000     $  25.000    $  18.125
       Low               $   8.750    $  11.063     $  15.063    $  12.188

FY97   High              $  36.750    $  40.062     $  41.250    $  29.625
       Low               $  22.750    $  25.000     $  15.875    $  19.625


All share  prices have been  adjusted to reflect  the  two-for-one  split of the
Company's common stock effected on April 5, 1996.

As of April 30, 1998,  there were 216 holders of record of the Company's  common
stock.

The Company has never  declared or paid cash  dividends on its capital stock and
anticipates  that, for the  foreseeable  future,  it will continue to retain any
earnings for use in the operation of its business.

Item 6. Selected Financial Data.

The following selected consolidated financial data is qualified by reference to,
and should be read in conjunction  with, the consolidated  financial  statements
and the notes thereto included elsewhere herein.  The consolidated  statement of
income data set forth below with  respect to the years ended  February 28, 1996,
1997 and 1998 and the  consolidated  balance sheet data at February 28, 1997 and
1998  are  derived  from,  and  are  qualified  by  reference  to,  the  audited
consolidated  financial  statements  and notes  thereto  included in this Annual
Report.  The consolidated  statement of income data set forth below with respect
to the years ended February 28, 1994 and 1995 and the consolidated balance sheet
data at February 28, 1994,  1995 and 1996 are derived from audited  consolidated
financial  statements  not included in this Annual  Report.  During  fiscal year
1996, the Company acquired TakeFive  Software GmbH and Doctor Design,  Inc. (now
formally renamed the Integrated Systems Design Center) in transactions accounted
for as poolings of  interests.  Fiscal  year 1995 annual  financial  information
includes the combined  results of the Company and the Integrated  Systems Design
Center.  Fiscal years 1996, 1997 and 1998 annual financial  information includes
the combined  results of the Company,  the Integrated  Systems Design Center and
TakeFive  Software GmbH. The annual financial  information has not been restated
for earlier years  because such  financial  information  was not material to the
Company.

During fiscal year 1997, the Company acquired Epilogue Technology Corporation in
a transaction  accounted for as a pooling of interests.  The results of Epilogue
Technology  Corporation have been combined with the results of the Company since
the date of acquisition.  Prior period information has not been restated for the
results of Epilogue Technology  Corporation  because such financial  information
was not  material  to the  Company.  Also during  fiscal year 1997,  the Company
revised the terms of the acquisition of Diab Data,  Inc.,  which was acquired in
fiscal  year 1996 in a  transaction  accounted  for under the  equity  method of
accounting.  Beginning December 1, 1996 the operating results of Diab Data, Inc.
have been consolidated with those of the Company.

20

<PAGE>


<TABLE>
<CAPTION>
                                                                                   Year Ended February 28,
                                                            ------------------------------------------------------------------------
(in thousands, except per share data)                         1994            1995            1996           1997             1998
                                                            ------------------------------------------------------------------------
Consolidated Statement of Income Data:
Revenue:
<S>                                                         <C>             <C>             <C>             <C>             <C>     
   Product                                                  $ 26,350        $ 34,952        $ 51,597        $ 69,282        $ 74,633
   Services                                                   19,433          23,102          32,845          36,181          45,836
                                                            ------------------------------------------------------------------------
     Total revenue                                            45,783          58,054          84,442         105,463         120,469
                                                            ------------------------------------------------------------------------
Costs and expenses:
   Cost of product revenue                                     4,986           5,980           9,046           9,755          14,527
   Cost of services revenue                                    8,262           9,547          15,824          16,392          24,846
   Marketing and sales                                        16,515          20,565          27,209          40,546          44,940
   Research and development                                    5,926           8,341          11,379          17,264          18,823
   General and administrative                                  3,567           4,311           6,637           8,542          11,352
   Amortization of intangible assets                           1,764           1,311             556             349             688
   Acquisition-related and other                                --              --             7,327           5,676            --
                                                            ------------------------------------------------------------------------
     Total costs and expenses                                 41,020          50,055          77,978          98,524         115,176
                                                            ------------------------------------------------------------------------
       Income from operations                                  4,763           7,999           6,464           6,939           5,293
Interest and other income                                      1,258           1,601           2,331           4,220           3,908
                                                            ------------------------------------------------------------------------
       Income before income taxes                              6,021           9,600           8,795          11,159           9,201
Provision for income taxes                                     1,935           3,110           3,512           3,905           3,128
                                                            ------------------------------------------------------------------------
       Net income                                           $  4,086        $  6,490        $  5,283        $  7,254        $  6,073
                                                            ========================================================================
Earnings per share--basic(1)                                $   0.22        $   0.34        $   0.25        $   0.32        $   0.26
                                                            ========================================================================
Earnings per share--diluted(1)                              $   0.21        $   0.33        $   0.24        $   0.31        $   0.25
                                                            ========================================================================
Earnings per share--basic before
   acquisition-related and other costs(2)                   $   0.22        $   0.34        $   0.52        $   0.50        $   0.26
                                                            ========================================================================
Earnings per share--diluted before
   acquisition-related and other costs(2)                   $   0.21        $   0.33        $   0.50        $   0.47        $   0.25
                                                            ========================================================================
Shares used in basic per share
   calculations(1)                                            18,637          19,318          20,963          22,437          23,237
                                                            ========================================================================
Shares used in diluted per share
   calculations(1)                                            19,122          19,964          22,088          23,508          24,078
                                                            ========================================================================
</TABLE>


                                                February 28,
                            ----------------------------------------------------
(in thousands)                1994       1995       1996       1997       1998
                            ----------------------------------------------------
Consolidated Balance 
Sheet Data:

Cash, cash equivalents
  and marketable securities $ 33,156   $ 36,517   $ 49,476   $ 54,695   $ 67,446
Working capital             $ 12,298   $ 17,783   $ 31,431   $ 38,019   $ 23,036
Total assets                $ 52,970   $ 66,101   $ 85,264   $112,502   $128,120
Total shareholders' 
  equity                    $ 38,032   $ 47,948   $ 58,276   $ 86,172   $ 94,426


(1)  See Note 1 of Notes to Consolidated Financial Statements for an explanation
     of  the   determination   of  the  number  of  shares  used  in  per  share
     calculations.

(2)  Fiscal years 1996 and 1997  earnings  per share before  acquisition-related
     and  other  costs  reflect  earnings  per share as if the  Company  had not
     incurred such acquisition-related and other costs, net of any tax effects.

                                                                              21

<PAGE>


Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations.

This Management's  Discussion and Analysis of Financial Condition and Results of
Operations  includes  forward-looking  statements  that  reflect  the  Company's
current views with respect to future matters such as  international  operations,
including the effect of  fluctuations  in foreign  currency  exchange  rates and
economic conditions in Asia, certain operating expense levels and capital needs.
Actual results may differ materially from the results and outcomes  discussed in
the forward-looking  statements.  Factors that could cause or contribute to such
differences in results and outcomes  include without  limitation those discussed
below as well as those discussed elsewhere in this Report.

OVERVIEW The Company provides  comprehensive  solutions of software products and
engineering  services  for  the  development  of  embedded  microprocessor-based
applications for the real-time  embedded computer market. The real-time embedded
computer  market  is  being  driven  by  the  increasing  demand  for  low-cost,
high-performance,  enhanced  functionality  devices.  These  devices,  using the
32-bit embedded  microprocessor,  are  increasingly  requiring  complex software
applications in order to address the  functionality  and  intelligence  that the
market demands.

The Company offers a solution for embedded software development that consists of
design and development tools, RTOS software and components, application enablers
and design  services.  The  Company's  products  are designed to enable users to
accelerate the design, development, debugging, implementation and maintenance of
embedded  software.  The  Company's  products  and  services  reduce the expense
associated with embedded software and system development and enable customers to
develop systems that have greater functionality,  enhanced performance, improved
reliability and  ease-of-use.  The Company markets and supports its products and
provides services on a worldwide basis to a variety of users in a broad range of
industries,  including  telecommunications,   data  communications,  automotive,
digital office and consumer electronics.

In October 1995, the Company acquired  TakeFive Software GmbH  ("TakeFive"),  an
Austrian  corporation in the business of developing and marketing software tools
used in software  development,  including  SNiFF+,  an advanced  object-oriented
Integrated Design Environment  ("IDE"). In January 1996, the Company completed a
merger with Doctor Design,  Inc. (now formally  renamed the  Integrated  Systems
Design Center),  a California  corporation  that develops  multimedia  hardware,
software and application-specific  integrated circuit technology.  In July 1996,
the Company acquired Epilogue Technology Corporation ("Epilogue"),  a New Mexico
corporation  which  develops and  distributes  network  management  and Embedded
Internet  software  for  telecommunications  and data  communications  equipment
manufacturers,  embedded software  suppliers and  networking-related  integrated
circuit  manufacturers.  Each of these business  combinations has been accounted
for as a pooling of interests.  The results of operations for Epilogue have been
included  only  since the date of  acquisition,  as  previous  results  were not
significant.  The results of operations for all fiscal years  presented  include
the results of TakeFive and the Integrated  Systems  Design Center.  In November
1996, the Company revised the terms of the acquisition of Diab Data, Inc. ("Diab
Data") which was  acquired in fiscal year 1996 in a  transaction  accounted  for
under  the  equity  method of  accounting.  Revising  the terms of the  original
acquisition  agreement  requires the Company to consolidate  the results of Diab
Data from the fourth  quarter of fiscal year 1997 onwards.  See  "Business--Risk
Factors--Acquisition-Related Risks."

RESULTS OF OPERATIONS The following  table sets forth for the periods  presented
the  percentage of total revenue  represented by each line item in the Company's
consolidated  statements of income and the  percentage  change in each line item
from the prior period.

22

<PAGE>


<TABLE>
<CAPTION>
                                                                                     Period-to-Period
                                                 Percentage of Total Revenue        Percentage Changes
                                              ---------------------------------------------------------------
                                                   Year Ended February 28,
                                              ---------------------------------- Fiscal 1996    Fiscal 1997
                                                1996(1)     1997(1)       1998  to Fiscal 1997 to Fiscal 1998
                                              ---------------------------------------------------------------
<S>                                              <C>         <C>          <C>          <C>         <C>
Revenue:
   Product                                        61%         66%          62%         34%          8 %
   Services                                       39          34           38          10          27
                                              ----------------------------------
     Total revenue                               100         100          100          25          14
                                              ----------------------------------

Costs and expenses:
   Cost of product revenue                        11           9           12           8          49
   Cost of services revenue                       19          16           21           4          52
   Marketing and sales                            32          38           37          49          11
   Research and development                       13          16           15          52           9
   General and administrative                      8           9            9          29          33
   Amortization of intangible assets               1          --            1         (37)         97
                                              ----------------------------------
     Total costs and expenses                     84          88           95          31          24
                                              ----------------------------------
       Income from operations                     16          12            5          (9)        (58)
Interest and other income                          3           4            3          81          (7)
                                              ----------------------------------
       Income before income taxes                 19          16            8           4         (45)
Provision for income taxes                         6           6            3          11         (45)
                                              ----------------------------------
       Net income                                 13%         10%           5%          1%        (45)%
                                              ==================================

<FN>
(1)  The table excludes  acquisition-related and other costs of $7.3 million and
     $5.7 million, including related tax effects, in fiscal years 1996 and 1997,
     respectively,  since  inclusion  of such costs  would  render  year-to-year
     comparisons less meaningful.
</FN>
</TABLE>


Revenue.  Revenue  consists  of fees  from the  licensing  and sale of  software
products and providing  related  maintenance  and support,  and  engineering and
consulting services. Total revenue increased by 25% from $84.4 million in fiscal
year 1996 to $105.5  million in fiscal year 1997 and by 14% to $120.5 million in
fiscal year 1998. The percentage of the Company's total revenue  attributable to
the licensing and sale of software products (product revenue) increased from 61%
in fiscal  year 1996 to 66% in fiscal  year  1997.  This  increase  was due to a
higher rate of growth for product  revenue than for  services  revenue in fiscal
year 1997.  The  percentage of total  revenue  attributable  to product  revenue
decreased  in  fiscal  year  1998  to  62%,  primarily  due  to an  increase  in
engineering  and consulting  services  revenue at the Integrated  Systems Design
Center.

Product  revenue  increased  34% from $51.6 million in fiscal year 1996 to $69.3
million in fiscal year 1997,  and an  additional  8% to $74.6  million in fiscal
year 1998. The increase in product  revenue from fiscal year 1996 to fiscal year
1997 was due primarily to an increase in the number of licenses of the Company's
pSOSystem and SNiFF+  products.  In addition,  fiscal year 1997 product  revenue
includes revenues from the licensing of the product of Epilogue from the date of
its  acquisition  in July 1996.  Revenue from licenses of the Company's  MATRIXx
product was  essentially  flat from  fiscal  year 1996 to fiscal year 1997.  The
increase  in product  revenue  from fiscal year 1997 to fiscal year 1998 was due
primarily to the licensing of pRISM+,  which was released in the second  quarter
of fiscal year 1998,  an  increase in the number of licenses of SNiFF+,  and the
inclusion  of revenues  from Diab Data and  Epilogue  for the full fiscal  year.
These  increases were partially  offset by a slight decrease in revenue from the
licensing of MATRIXx.

                                                                              23

<PAGE>


Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations

Services  revenue  increased 10% from $32.8 million in fiscal year 1996 to $36.2
million in fiscal  year 1997 and by 27% to $45.8  million  in fiscal  year 1998.
These  increases are due to growth in the Company's  base of installed  software
and the associated increase in maintenance and support revenue,  and from growth
in consulting  and  engineering  services.  The increase in the rate of services
revenue  growth in fiscal  year 1998 as  compared to the fiscal year 1997 growth
rate,  was due to an increase in  consulting  activities  and  contracts  at the
Integrated Systems Design Center.

Price  increases were not a material  factor in the Company's  revenue growth in
the periods presented.

The  percentage  of  the  Company's   total  revenue  from   customers   located
internationally  was 34%,  38% and 41% in  fiscal  years  1996,  1997 and  1998,
respectively.  The increases in  international  revenue as a percentage of total
revenue in fiscal years 1997 and 1998 were due  primarily to product  revenue in
Japan and Europe growing faster than product revenue in the United States. These
increases  were  partially  offset by the  increase  in  service  revenue at the
Integrated  Systems Design Center,  which has a predominately  domestic customer
base.

In Europe and Japan,  revenues and expenses are primarily  denominated  in local
currencies.  In fiscal years 1997 and 1998, the U.S. dollar strengthened against
many foreign  currencies,  which  resulted in  relatively  lower  revenues  when
translated into U.S. dollars.  In fiscal year 1996,  revenue was less influenced
by fluctuations in foreign exchange rates.  The Company's  operating and pricing
strategies take into account changes in exchange rates over time,  however,  the
Company's results of operations may be significantly  affected in the short term
by fluctuations  in foreign  currency  exchange  rates.  In addition,  in recent
months the  currencies  of many  countries in the Asia Pacific  region have lost
significant value against the dollar. As a result,  revenue in this region could
be adversely affected in fiscal year 1999. More generally, recent instability in
the Asian currency and stock markets could adversely  affect the economic health
of the entire region and could affect customer purchasing patterns.

Costs and  Expenses.  Cost of  product  revenue  includes  the costs of  product
packaging and documentation,  third-party royalties, amortization of capitalized
software  development  costs, and the cost related to hardware.  Cost of product
revenue as a percentage of product  revenue was 18%, 14% and 19% in fiscal years
1996,  1997 and 1998,  respectively.  The decrease  between fiscal year 1996 and
fiscal year 1997 was a result of a lower  proportion of product sales subject to
third-party  royalties.  In  addition,  fiscal year 1997  product  revenue had a
smaller  proportion of lower margin  hardware  revenue than in fiscal year 1996.
The increase in cost of product  revenue as a percentage of product revenue from
fiscal year 1997 to fiscal year 1998 was due to an increase in the proportion of
product sales subject to third-party royalties and from the write-off of certain
prepaid royalties in the second quarter of fiscal year 1998.

Cost of services revenue includes  personnel and related direct costs associated
with providing  engineering and consulting services to customers.  The Company's
cost of services  revenue as a percentage  of services  revenue was 48%, 45% and
54% in fiscal years 1996, 1997 and 1998, respectively.  Cost of services revenue
as a percentage of services  revenue can fluctuate due to shifts in the services
revenue mix between  higher margin  maintenance  and support  revenues and lower
margin engineering and consulting contracts revenues.  In addition,  the cost of
services revenue as a percentage of services revenue can fluctuate due to shifts
in the  proportion  of  fixed-price  versus  time-and-material  engineering  and
consulting contracts. Fixed-price engineering and consulting contracts generally
have lower gross margins than time-and-material  contracts. In fiscal year 1998,
cost  of  services  revenue  as  a  percentage  of  services  revenue  increased
significantly  compared to fiscal years 1996 and 1997.  This was due to a higher
percentage  of total  services  revenues  being  derived  from  engineering  and
consulting  contracts  as opposed

24

<PAGE>


to maintenance and support contracts. In addition, in fiscal year 1998 there was
a higher proportion of fixed-price engineering and consulting services contracts
than in fiscal  years 1996 and 1997.  In  particular,  in the second  quarter of
fiscal  year 1998 the Company was  required to procure a  significant  amount of
hardware,  which  had no  associated  gross  margin,  under the terms of a large
fixed-price engineering services contract.

Marketing and sales expenses  increased by 49% from $27.2 million in fiscal year
1996 to $40.5 million in fiscal year 1997, and by 11% to $44.9 million in fiscal
year 1998.  Marketing and sales expenses  represented  32%, 38% and 37% of total
revenue in fiscal  years  1996,  1997 and 1998,  respectively.  The  increase in
marketing  and sales  expenses  in fiscal  year 1997,  in both  dollars and as a
percentage of total revenue,  was due to the Company's  aggressive  expansion of
its domestic and international sales and support  infrastructure.  Marketing and
sales  expenses  increased  in  fiscal  year  1998 due  primarily  to  increased
marketing activity  associated with the release of pRISM+ and other new products
and product  enhancements,  the acquisition of Epilogue and the consolidation of
Diab Data,  and the  Company's  continued  investment  in its sales and  support
infrastructure.

Research and  development  expenses  increased  52% from $11.4 million in fiscal
year 1996 to $17.3  million in fiscal  year 1997 and by 9% from fiscal year 1997
to $18.8  million in fiscal  year 1998.  Research  and  development  expenses in
fiscal years 1996, 1997 and 1998, were 13%, 16% and 15%, respectively,  of total
revenue.  The  dollar  increases  in  research  and  development  expenses  were
attributable  primarily to increased  personnel and consulting  costs associated
with the Company's  continued  emphasis on developing new products and enhancing
existing products, including pRISM+ and MATRIXx version 6.0, which were released
in the second and fourth quarters of fiscal year 1998, respectively. The rate of
increase in research and development  expenses was significantly  higher between
fiscal  years  1996 and 1997  than  between  fiscal  years  1997 and  1998,  due
primarily  to the effort  associated  with the  development  and  release of the
Company's pRISM+ product.  The Company believes that significant  investment for
product   research  and  development  is  essential  to  product  and  technical
leadership.  The Company anticipates that it will continue to devote substantial
resources to product research and development throughout fiscal year 1999.

Costs  that  are  required  to  be  capitalized  under  Statement  of  Financial
Accounting  Standards  No.  86 ("SFAS  No.  86"),  "Accounting  for the Costs of
Computer  Software to be Sold,  Leased or Otherwise  Marketed"  were $335,000 in
fiscal year 1996,  $1,540,000 in fiscal year 1997 and  $1,344,000 in fiscal year
1998. The amount capitalized  represents  approximately 3% of total research and
development  expenditures  for fiscal  year 1996  compared to 8% for fiscal year
1997 and 7% for  fiscal  year  1998.  The  amount of  research  and  development
expenditures  capitalized  in a given time period depends upon the nature of the
development performed and, accordingly, amounts capitalized may vary from period
to period. Capitalized costs are being amortized using the greater of the amount
computed  using the ratio that current gross  revenues for a product bear to the
total of current and anticipated future gross revenues for that product, or on a
straight-line  basis over three  years.  Amortization  for fiscal  year 1996 was
$921,000, compared to $968,000 for fiscal year 1997 and $949,000 for fiscal year
1998.

General and  administrative  expenses increased 29% and 33% in fiscal years 1997
and 1998, respectively, and represented 8%, 9% and 9% of total revenue in fiscal
years 1996, 1997 and 1998, respectively.  Expenses increased in each fiscal year
due primarily to a combination  of increases in personnel and  personnel-related
expenses and higher legal fees and outside service costs.  In addition,  general
and administrative expenses increased in fiscal year 1998 due to the acquisition
of Epilogue and the consolidation of Diab Data.

                                                                              25

<PAGE>


Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations

Acquisition-related and other costs in fiscal year 1996 totaled $7.3 million and
comprised  direct costs and write-offs  related to the  acquisitions of TakeFive
and the Integrated Systems Design Center. Acquisition-related and other costs in
fiscal year 1997 of $5.7 million related to a one-time payment to the executives
and employees of Diab Data, the write-off  during the year of intangible  assets
related to a prior  acquisition  and direct costs related to the  acquisition of
Epilogue. See "Note 2 to Notes to Consolidated Financial Statements."

Interest  and other  income was $2.3  million,  $4.2 million and $3.9 million in
fiscal  years 1996,  1997 and 1998,  respectively.  Interest and other income in
fiscal year 1997  increased due to the  inclusion of net  operating  income from
Diab Data  during the  period it was  accounted  for under the equity  method of
accounting.  See  "Note 2 to Notes to  Consolidated  Financial  Statements."  In
addition,  interest  income  increased  in both  comparative  periods  due to an
increase  in the amount of  interest-bearing  cash  equivalents  and  marketable
securities.

The effective tax rate was 40%, 35% and 34% in fiscal years 1996, 1997 and 1998,
respectively.  The  effective  rate of 40% in  fiscal  year  1996 was due to the
effect of non-deductible  acquisition-related  and other costs.  After adjusting
for such items, the effective rate for fiscal year 1996 was 32%.  Non-deductible
acquisition-related  costs in fiscal year 1997, combined with a higher statutory
federal income tax rate, resulted in an effective tax rate of 35% in fiscal year
1997. In fiscal year 1998 the effective tax rate decreased slightly to 34%, as a
result of an increased level of federal research and development credits.

RECENT  ACCOUNTING   PRONOUNCEMENTS  In  June  1997,  the  Financial  Accounting
Standards  Board  issued  Statement of Financial  Accounting  Standards  No. 130
("SFAS No. 130"), "Reporting  Comprehensive Income," which establishes standards
of  disclosure  and  financial   statement   presentation  for  reporting  total
comprehensive  income in  individual  components.  SFAS No. 130 is effective for
fiscal years  beginning after December 15, 1997 and will require earlier periods
to be restated to reflect application of the provisions of SFAS No. 130.

Additionally,  in June 1997,  the Financial  Accounting  Standards  Board issued
Statement  of  Financial   Accounting   Standards  No.  131  ("SFAS  No.  131"),
"Disclosure  About  Segments of an Enterprise  and Related  Information,"  which
specifies   disclosure   requirements  for  segment  reporting.   The  statement
supersedes  SFAS No. 14 and SFAS No. 18, is effective for fiscal years beginning
after  December  15,  1997,  and  requires  earlier  periods to be  restated  if
practical.  The impact of the adoption of the above  statements,  if any, on the
financial statements of the Company has not yet been determined.

In October  1997 and March 1998,  the American  Institute  of  Certified  Public
Accountants  issued  Statement of Position 97-2 ("SOP 97-2")  "Software  Revenue
Recognition,"  and  Statement  of Position  98-4 ("SOP  98-4")  "Deferral of the
Effective  Date  of  Provision  of  SOP  97-2,  Software  Revenue  Recognition,"
respectively,   which  supersede  Statement  of  Position  91-1,  ("SOP  91-1"),
"Software  Revenue  Recognition." The Statements are effective for the Company's
fiscal  year  1999.  The  Company  believes  it is  currently  substantially  in
compliance with the provisions of SOP 97-2 and SOP 98-4.

In April 1998, the American  Institute of Certified  Public  Accountants  issued
Statement of Position  98-1 ("SOP 98-1")  "Accounting  for the Costs of Computer
Software Developed or Obtained for Internal Use." SOP 98-1 provides guidance for
determining whether computer software is internal-use software and on accounting
for the  proceeds of computer  software  originally  developed  or obtained  for
internal use and then subsequently sold to the public. It also provides guidance
on  capitalization  of the costs  incurred  for computer  software  developed or
obtained for internal  use. The Company has not yet  determined  the impact,  if
any, of adopting this statement.  The disclosures prescribed by SOP 98-1 will be
effective for the Company's fiscal year 2000.

26

<PAGE>


"YEAR 2000" ISSUES The Company  believes  that all its most current  releases of
its products will not cease to perform nor generate  incorrect or ambiguous data
or results  solely due to a change in date to or after January 1, 2000, and will
calculate any information  dependent on such dates in the same manner,  and with
the same functionality,  data integrity, and performance, as such products do on
or before December 31, 1999 (collectively, "Year 2000 Compliance"). However, the
Company is currently in the process of  evaluating  its  information  technology
infrastructure  for Year 2000  Compliance.  In  addition,  the Company  does not
currently have all  information  concerning the Year 2000  Compliance for all of
its  suppliers  and  customers.  In the  event  that the  Company's  significant
suppliers or customers do not  successfully  achieve Year 2000  Compliance,  the
Company's  business,  financial  condition  and results of  operations  could be
adversely affected.

"EURO" ISSUES The Economic and Monetary Union ("EMU") and the  introduction of a
new  currency,  (the  "euro")  will begin in Europe on January 1, 1999.  The new
currency enables the European Union ("EU") to blend the economies of EU's member
states  into one large  market  with  unrestricted  and  unencumbered  trade and
commerce across borders.  Eleven European  countries are expected to participate
in the  first  membership  wave  of EMU,  including  the  Netherlands,  Belgium,
Luxembourg,  Germany,  France,  Ireland,  Finland,  Austria,  Italy,  Spain  and
Portugal.  Other member  states are  expected to join in the years to come.  The
Company has not evaluated the impact of the introduction of the new currency and
has not  determined  the impact,  if any, on the Company's  financial  position,
results of operations or cash flows.

LIQUIDITY AND CAPITAL  RESOURCES  The Company has funded its  operations to date
principally  through cash flows from  operations.  As of February 28, 1998,  the
Company had $67.4 million of cash, cash  equivalents and marketable  securities.
This represents an increase of $12.8 million from February 28, 1997.  During the
first  quarter of fiscal  year 1998,  the  Company  announced  that the Board of
Directors had  authorized  the Company to  repurchase up to 1,000,000  shares of
common  stock  for cash  from  time-to-time  at  market  prices,  pursuant  to a
repurchase  program.  During  fiscal year 1998 the Company  repurchased  135,000
shares of common stock for $1.7 million under this program.

Net cash provided by operating  activities  was $16.0 million during fiscal year
1998,  an increase of $15.8  million  over the amount  generated  in fiscal year
1997. Net cash provided by operating  activities  increased in fiscal year 1998,
despite lower net income than in fiscal year 1997, due to the fact that accounts
receivable increased by only $4.2 million from February 28, 1997 to February 28,
1998.  This  compares to an increase of $9.0 million  from  February 28, 1996 to
February 28, 1997. In addition,  increases in accounts payable, accrued payroll,
other accrued  liabilities,  income taxes payable and deferred revenue in fiscal
year 1998, contributed to the increase in cash provided by operating activities.
Net cash provided by operating  activities in fiscal year 1997  decreased  $15.9
million from the amount  provided in fiscal year 1996.  This decrease was due to
an  increase  in  accounts  receivable,  the  inclusion  of  net  income  from a
subsidiary  accounted for under the equity method of accounting,  write-downs of
intangible assets and decreases in current liabilities and income taxes payable,
offset in part by an increase in deferred revenue.

Net cash used in investing  activities totaled $29.4 million in fiscal year 1998
compared to $16.7  million in fiscal  year 1997 and $6.0  million in fiscal year
1996. The increase in net cash used in investing  activities in fiscal year 1998
was due primarily to an increase in the net purchases of marketable  securities,
partially  offset by a decrease in  additions  to property  and  equipment.  The
increase  in net cash used in  investing  activities  from  fiscal  year 1996 to
fiscal year 1997 was due primarily to the purchase of the corporate headquarters
building  in  Sunnyvale,  California  in March  1996,  for  approximately  $12.0
million, offset in part by cash acquired through acquisitions.

                                                                              27

<PAGE>


Item 7a. Quantitative and Qualitative Disclosures About Market Risks

Net cash  provided by financing  activities  totaled $2.5 million in fiscal year
1998  compared to $20.6  million in fiscal year 1997 and $4.0  million in fiscal
year 1996.  The decrease in net cash provided by financing  activities in fiscal
year 1998 was due primarily to the fact that the Company issued and sold 500,000
shares of common stock for net proceeds of $12.8 million in fiscal year 1997. In
addition,  in fiscal year 1998 there was a decrease from fiscal year 1997 in the
tax benefits  from  disqualifying  dispositions  of common stock and the Company
repurchased 135,000 shares of common stock for $1.7 million. The increase in net
cash provided by financing  activities from fiscal year 1996 to fiscal year 1997
was due  primarily to the issuance and sale of common stock and from an increase
in the tax benefits from disqualifying dispositions of common stock. The Company
believes  that the cash flows from  operations,  together with existing cash and
investment  balances,  will be adequate to meet the Company's cash  requirements
for working capital,  capital expenditures and stock repurchases for the next 12
months.


Item 7a. Quantitative and Qualitative Disclosures About Market Risks.

Not applicable.


Item 8. Financial Statements and Supplementary Data.

<TABLE>
QUARTERLY  FINANCIAL  DATA The  following  table sets forth  selected  unaudited
quarterly  financial  data for the Company's  last eight fiscal  quarters.  This
unaudited  information  has  been  prepared  on the same  basis  as the  audited
information  and, in  management's  opinion,  reflects  all  adjustments  (which
include only normal recurring  adjustments)  necessary for the fair presentation
of the information for the periods presented.  Based on the Company's  operating
history  and  factors  that may cause  fluctuations  in the  quarterly  results,
quarter-to-quarter comparisons should not be relied upon as indicators of future
performance.

<CAPTION>
                                                                         Fiscal Year 1997
                                                        ---------------------------------------------
(in thousands, except per share data)                          Q1          Q2          Q3          Q4
                                                        ---------------------------------------------
<S>                                                     <C>         <C>         <C>         <C>      
Total revenue                                           $  23,151   $  26,105   $  26,803   $  29,404
Income (loss) from operations                           $   2,319   $   2,909   $  (1,153)  $   2,864
Net income (loss)                                       $   2,451   $   2,372   $     (94)  $   2,525
Earnings per share--basic                               $    0.11   $    0.11   $    0.00   $    0.11
Earnings per share--diluted                             $    0.11   $    0.10   $    0.00   $    0.11
Shares used in per share calculations--basic               21,506      22,335      22,909      22,996
Shares used in per share calculations--diluted             22,709      23,511      22,909      23,875


                                                                         Fiscal Year 1998
                                                        ---------------------------------------------
(in thousands, except per share data)                          Q1          Q2          Q3          Q4
                                                        ---------------------------------------------
Total revenue                                           $  24,588   $  32,170   $  29,902   $  33,809
Income (loss) from operations                           $    (449)  $     427   $   1,352   $   3,963
Net income                                              $     221   $     935   $   1,612   $   3,305
Earnings per share--basic                               $    0.01   $    0.04   $    0.07   $    0.14
Earnings per share--diluted                             $    0.01   $    0.04   $    0.07   $    0.14
Shares used in per share calculations--basic               23,121      23,182      23,291      23,355
Shares used in per share calculations--diluted             23,852      23,969      24,349      24,143
</TABLE>


The  financial  statements  required  by this item are  submitted  as a separate
section of this Form 10-K. See Item 14.


Item  9.  Changes  in and  Disagreements  with  Accountants  on  Accounting  and
Financial Disclosures.

None.

28

<PAGE>


Part III

Item 10. Directors and Executive Officers of the Registrant.

The information required by Item 10 as to directors is incorporated by reference
from the section  entitled  "Election of Directors" in the Company's  definitive
Proxy Statement for its Annual Meeting of Shareholders to be held July 15, 1998.
The  information  required by this Item as to executive  officers is included in
Part I under "Executive Officers of the Registrant."

The information required by this item as to compliance with Section 16(a) of the
Securities Exchange Act of 1934 is incorporated by reference from "Section 16(a)
Beneficial  Ownership  Reporting  Compliance" in the Company's  definitive Proxy
Statement for its Annual Meeting of Shareholders to be held July 15, 1998.


Item 11. Executive Compensation.

The  information  required  by  this  item is  incorporated  by  reference  from
"Election of Directors--Board of Directors' Meetings and Committees," "Executive
Compensation" and "Compensation  Committee Interlocks and Insider Participation"
in  the  Company's   definitive  Proxy  Statement  for  its  Annual  Meeting  of
Shareholders to be held July 15, 1998.


Item 12. Security Ownership of Certain Beneficial Owners and Management.

The  information  required  by  this  item is  incorporated  by  reference  from
"Security  Ownership  of  Certain  Beneficial  Owners  and  Management"  in  the
Company's  definitive  Proxy Statement for its Annual Meeting of Shareholders to
be held July 15, 1998.


Item 13. Certain Relationships and Related Transactions.

The information required by this item is incorporated by reference from "Certain
Transactions" in the Company's definitive Proxy Statement for its Annual Meeting
of Shareholders to be held July 15, 1998.

                                                                              29

<PAGE>


Item 14. Exhibits, Financial Statements, Schedule and Reports on Form 8-K

Part IV

Item 14. Exhibits, Financial Statements, Schedule and Reports on Form 8-K.

(a)(1)   Financial Statements
                                                                            Page
                                                                            ----
         Report of Independent Accountants                                   32
         Consolidated Balance Sheets at February 28, 1997 and 1998           33
         Consolidated Statements of Income for the years ended
            February 28, 1996, 1997 and 1998                                 34
         Consolidated Statements of Shareholders' Equity for the years
            ended February 28, 1996, 1997 and 1998                           35
         Consolidated Statements of Cash Flows for the years ended
            February 28, 1996, 1997 and 1998                                 36
         Notes to Consolidated Financial Statements                          37


(a)(2)   Financial Statement Schedule. Registrant's financial statement schedule
         filed herewith is as follows:

         Schedule
         Report of Independent Accountants on Schedule
         Schedule II: Valuation and Qualifying Accounts for the years
            ended February 28, 1996, 1997 and 1998

(a)(3)   Exhibits.  The following  exhibits are filed  herewith or  incorporated
         herein by reference:

         Exhibit
         2.01     Stock Exchange  Agreement  dated as of October 31, 1995 by and
                  between the  Registrant  and  TakeFive  Software  GmbH and the
                  holders  of  share   interests  in  TakeFive   Software   GmbH
                  (incorporated  herein  by  reference  to  Exhibit  2.01 to the
                  Registrant's  Current  Report on Form 8-K,  dated  October 31,
                  1995).

         2.02     Agreement and Plan of Reorganization  dated as of December 14,
                  1995, as amended  January 26, 1996,  by and among  Registrant,
                  ISI Purchasing Corporation and Doctor Design, Inc. and related
                  documents (incorporated herein by reference to Exhibit 2.01 to
                  the Registrant's Current Report on Form 8-K, dated January 26,
                  1996 (the "January 26, 1996 Form 8-K")).

         2.03     Agreement  of  Merger  dated  as of  January  26,  1996 by and
                  between ISI Purchasing  Corporation  and Doctor  Design,  Inc.
                  (incorporated  herein  by  reference  to  Exhibit  2.02 to the
                  January 26, 1996 Form 8-K).

         3.01(i)  Registrant's  Articles  of  Incorporation,  as amended to date
                  (incorporated  by reference to Exhibit  Number  3.01(i) to the
                  Registrant's  Form 10-K for the fiscal year ended February 28,
                  1996).

         3.01(ii) Registrant's Bylaws, as amended June 12, 1996 (incorporated by
                  reference to Exhibit Number 4.02 to Registrant's  Registration
                  Statement  on Form S-8 under the  Securities  Act of 1933,  as
                  amended,   filed   September   27,  1996,   Registration   No.
                  333-12799).

         4.01     Registration  Rights  Agreement  dated  as of April  13,  1987
                  (incorporated  by reference  to Exhibit  4.02 to  Registrant's
                  Registration Statement on Form S-1 under the Securities Act of
                  1933,  as amended,  filed January 26, 1990,  Registration  No.
                  33-33219 (the "S-1 Registration Statement")).

        10.02+    Registrant's  1983 Incentive  Stock Option Plan, as amended to
                  date,  and related  documents  (incorporated  by  reference to
                  Exhibit Number 10.02 to the S-1 Registration Statement).

30

<PAGE>


        10.03+    Registrant's  1988  Stock  Option  Plan,  as  amended  to date
                  (incorporated  by  reference  to  Exhibit  Number  4.01 to the
                  Registrant's  Form S-8 filed with the  Securities and Exchange
                  Commission on August 5, 1994, Registration No. 33-82438).

        10.04+    Registrant's  1990  Stock  Purchase  Plan,  as amended to date
                  (incorporated  by  reference  to  Exhibit  Number  4.03 to the
                  Registrant's  Form S-8 filed with the  Securities and Exchange
                  Commission on October 18, 1993).

        10.05+    Dr.  Design,  Inc.  1991 Stock Option Plan, as amended to date
                  (incorporated  by  reference  to  Exhibit  Number  4.03 to the
                  Registrant's  Form S-8 filed with the  Securities and Exchange
                  Commission on February 22, 1996).

        10.06+    Form of Indemnity  Agreement with Directors  (incorporated  by
                  reference  to  Exhibit  Number  10.06 to the S-1  Registration
                  Statement).

        10.07+    Form of Stock Option Grant and Stock Option Exercise Form used
                  in  connection  with  Registrant's  1988 Stock Option Plan, as
                  amended to date  (incorporated  by reference to Exhibit Number
                  19.01 to  Registrant's  Form 10-Q for the quarter ended August
                  31, 1990).

        10.08+    Form  of  Option  Modification   Agreement   (incorporated  by
                  reference  to Exhibit  Number 19.01 to the  Registrant's  Form
                  10-Q for the quarter ended August 31, 1991).

        10.09+    Registrant's 1994 Directors Stock Option Plan (incorporated by
                  reference  to Exhibit  Number 10.10 to the  Registrant's  Form
                  10-K for the fiscal year ended February 28, 1994).

        10.10+    Form of Stock Option Grant and Stock Option Exercise Form used
                  in connection  with  Registrant's  1994 Directors Stock Option
                  Plan (incorporated by reference to Exhibit Number 10.11 to the
                  Registrant's  Form 10-K for the fiscal year ended February 28,
                  1994).

        10.11+    Agreement  of Purchase and Sale  between  Connecticut  General
                  Life Insurance  Company and the  Registrant  dated February 9,
                  1996 (incorporated by reference to Exhibit Number 10.14 to the
                  Registrant's  Form 10-K for  fiscal  year ended  February  28,
                  1996).

        10.12+    Form of Stock Option  Exercise  Form used in  connection  with
                  Registrant's  1988  Stock  Option  Plan,  as  amended  to date
                  (incorporated  by  reference  to Exhibit  Number  10.13 to the
                  Registrant's Form 10-Q for the quarter ended May 31, 1995).

        10.13+    Epilogue  Technology  Corporation  1994 Stock Option Plan,  as
                  amended to date  (incorporated  by reference to Exhibit Number
                  4.03 to the  Registrant's  Form S-8 filed with the  Securities
                  and Exchange  Commission on September  27, 1996,  Registration
                  No. 333-12799).

        21.01     List of Registrant's Subsidiaries.

        23.01     Consent of Independent Accountants.

        27.01     Financial Data Schedule.

        27.02     Restated Financial Data Schedules.

         +    Represents  a  management   contract  or   compensatory   plan  or
              arrangement.

   (b)   Reports on Form 8-K.

         No reports on Form 8-K were filed during the last quarter of the fiscal
         year covered by this Report.

   (c)   Exhibits. See (a)(3) above.

   (d)   Financial Statement Schedules. See (a)(2) above.

                                                                              31

<PAGE>


Report of Independent Accountants


The Board of Directors and Shareholders
Integrated Systems, Inc.:


We have  audited the  accompanying  consolidated  balance  sheets of  Integrated
Systems,  Inc. as of February  28, 1997 and 1998,  and the related  consolidated
statements of income,  shareholders' equity and cash flows for each of the three
years in the period ended February 28, 1998. These financial  statements are the
responsibility of the Company's management.  Our responsibility is to express an
opinion on these financial statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion,  the financial  statements  referred to above present fairly, in
all  material  respects,  the  consolidated  financial  position  of  Integrated
Systems,  Inc. as of February 28, 1997 and 1998, and the consolidated results of
its  operations  and its cash  flows for each of the three  years in the  period
ended  February  28,  1998 in  conformity  with  generally  accepted  accounting
principles.


                                                        COOPERS & LYBRAND L.L.P.

San Jose, California
March 26, 1998

32

<PAGE>


<TABLE>
Integrated Systems, Inc.
Consolidated Balance Sheets

<CAPTION>
                                                                                                             February 28,
                                                                                                     ------------------------------
(in thousands)                                                                                         1997                 1998
                                                                                                     ------------------------------
<S>                                                                                                  <C>                  <C>      
Assets
Current assets:
   Cash and cash equivalents                                                                         $  25,585            $  14,454
   Marketable securities                                                                                 4,483                6,670
   Accounts receivable, net of allowance for doubtful accounts and
     sales returns of $1,540 and $2,182 in 1997 and 1998, respectively                                  28,266               29,455
   Deferred income taxes                                                                                 1,676                1,603
   Prepaid expenses and other                                                                            4,136                4,548
                                                                                                     ------------------------------
         Total current assets                                                                           64,146               56,730
Marketable securities                                                                                   24,627               46,322
Property and equipment, net                                                                             17,956               18,428
Intangible assets, net                                                                                   3,136                2,867
Deferred income taxes                                                                                    1,293                2,363
Other assets                                                                                             1,344                1,410
                                                                                                     ------------------------------
         Total assets                                                                                $ 112,502            $ 128,120
                                                                                                     ==============================

Liabilities
Current liabilities:
   Accounts payable                                                                                  $   4,143            $   5,073
   Accrued payroll and related expenses                                                                  3,407                4,321
   Other accrued liabilities                                                                             4,514                5,372
   Income taxes payable                                                                                  1,442                2,747
   Deferred revenue                                                                                     12,621               16,181
                                                                                                     ------------------------------
         Total current liabilities                                                                      26,127               33,694
Other liabilities                                                                                          203                 --
                                                                                                     ------------------------------
         Total liabilities                                                                              26,330               33,694
                                                                                                     ------------------------------
Commitments and contingencies (Note 5).

Shareholders' equity
Preferred stock, no par value, 5,000 shares authorized:
   Issued and outstanding: none in 1997 and 1998
Common stock, no par value, 50,000 shares authorized:
   Issued and outstanding: 23,039 and 23,339 shares in 1997
     and 1998, respectively                                                                             61,158               63,647
Unrealized holding gain on marketable securities, net                                                      148                  148
Translation adjustments                                                                                 (1,130)              (1,438)
Retained earnings                                                                                       25,996               32,069
                                                                                                     ------------------------------
         Total shareholders' equity                                                                     86,172               94,426
                                                                                                     ------------------------------
         Total liabilities and shareholders' equity                                                  $ 112,502            $ 128,120
                                                                                                     ==============================

<FN>
The accompanying notes are an integral part of these consolidated financial statements.
</FN>

                                                                                                                                  33
</TABLE>

<PAGE>


<TABLE>
Integrated Systems, Inc.
Consolidated Statements of Income

<CAPTION>
                                                                                                Year Ended February 28,
                                                                                    ------------------------------------------------
(in thousands, except per share data)                                                 1996                1997                1998
                                                                                    ------------------------------------------------
<S>                                                                                 <C>                 <C>                 <C>     
Revenue:
   Product                                                                          $ 51,597            $ 69,282            $ 74,633
   Services                                                                           32,845              36,181              45,836
                                                                                    ------------------------------------------------
      Total revenue                                                                   84,442             105,463             120,469
                                                                                    ------------------------------------------------
Costs and expenses:
   Cost of product revenue                                                             9,046               9,755              14,527
   Cost of services revenue                                                           15,824              16,392              24,846
   Marketing and sales                                                                27,209              40,546              44,940
   Research and development                                                           11,379              17,264              18,823
   General and administrative                                                          6,637               8,542              11,352
   Amortization of intangible assets                                                     556                 349                 688
   Acquisition-related and other                                                       7,327               5,676                --
                                                                                    ------------------------------------------------
      Total costs and expenses                                                        77,978              98,524             115,176
                                                                                    ------------------------------------------------
       Income from operations                                                          6,464               6,939               5,293
Interest and other income                                                              2,331               4,220               3,908
                                                                                    ------------------------------------------------
        Income before income taxes                                                     8,795              11,159               9,201
Provision for income taxes                                                             3,512               3,905               3,128
                                                                                    ------------------------------------------------
        Net income                                                                  $  5,283            $  7,254            $  6,073
                                                                                    ================================================
Earnings per share--basic                                                           $   0.25            $   0.32            $   0.26
                                                                                    ================================================
Earnings per share--diluted                                                         $   0.24            $   0.31            $   0.25
                                                                                    ================================================
Shares used in per share calculations--basic                                          20,963              22,437              23,237
                                                                                    ================================================
Shares used in per share calculations--diluted                                        22,088              23,508              24,078
                                                                                    ================================================

<FN>
The accompanying notes are an integral part of these consolidated financial statements.
</FN>
</TABLE>

34

<PAGE>


<TABLE>
Integrated Systems, Inc.
Consolidated Statements of Shareholders' Equity

<CAPTION>
                                                                                   Unrealized
                                                                 Common Stock         Holding
                                                           ---------------------  Gain(Loss),  Translation     Retained
(in thousands)                                               Shares       Amount          Net  Adjustments     Earnings       Total
                                                           ------------------------------------------------------------------------
<S>                                                          <C>        <C>          <C>                       <C>         <C>     
Balances, February 28, 1995                                  19,722     $ 35,688     $   (109)        --       $ 12,369    $ 47,948
   Exercise of common stock options                             540        2,050                                              2,050
   Common stock issued under
     Employee Stock Purchase Plan                                72          557                                                557
   Tax benefit from disqualifying
     dispositions of common stock                                          2,323                                              2,323
   Pooling of interests with TakeFive
     Software                                                   872           50                                      8          58
   Purchase of TakeFive Software
     common stock for cash                                                  (400)                                              (400)
   Payment of note receivable from
     shareholder                                                              15                                                 15
   Unrealized holding gain on
     marketable securities, net                                                           442                                   442
   Net income                                                                                                     5,283       5,283
                                                           ------------------------------------------------------------------------
Balances, February 28, 1996                                  21,206       40,283          333         --         17,660      58,276
   Exercise of common stock options                             651        2,344                                              2,344
   Common stock issued under
     Employee Stock Purchase Plan                                51          975                                                975
   Tax benefit from disqualifying
     dispositions of common stock                                          4,908                                              4,908
   Pooling of interests with Epilogue                           631           26                                  1,082       1,108
   Issuance of common stock in
     connection with secondary offering                         500       12,774                                             12,774
   Foreign currency translation adjustments                                                       $ (1,130)                  (1,130)
   Purchase of Doctor Design common
     stock for cash                                                         (152)                                              (152)
   Unrealized holding loss on marketable
     securities, net                                                                     (185)                                 (185)
   Net income                                                                                                     7,254       7,254
                                                           ------------------------------------------------------------------------
Balances, February 28, 1997                                  23,039       61,158          148       (1,130)      25,996      86,172
   Exercise of common stock options                             291        1,408                                              1,408
   Common stock issued under
     Employee Stock Purchase Plan                               144        1,660                                              1,660
   Tax benefit from disqualifying
     dispositions of common stock                                          1,093                                              1,093
   Repurchase of common stock                                  (135)      (1,672)                                            (1,672)
   Foreign currency translation adjustments                                                           (308)                    (308)
   Unrealized holding gain (loss) on
     marketable securities, net                                                            --                                  --
   Net income                                                                                                     6,073       6,073
                                                           ------------------------------------------------------------------------
Balances, February 28, 1998                                  23,339     $ 63,647     $    148     $ (1,438)    $ 32,069    $ 94,426
                                                           ========================================================================

<FN>
The accompanying notes are an integral part of these consolidated financial statements.
</FN>

                                                                                                                                  35
</TABLE>

<PAGE>


<TABLE>
Integrated Systems, Inc.
Consolidated Statements of Cash Flows

<CAPTION>
                                                                                               Year Ended February 28,
                                                                                       --------------------------------------------
(in thousands)                                                                           1996              1997              1998
                                                                                       --------------------------------------------
<S>                                                                                    <C>               <C>               <C>     
Cash flows from operating activities:
   Net income                                                                          $  5,283          $  7,254          $  6,073
   Adjustments to reconcile net income to net
     cash provided by operating activities:
   Depreciation and amortization                                                          4,103             4,955             5,594
   Write-downs of intangible assets                                                       3,083               616              --
   Deferred income taxes                                                                 (1,768)             (399)             (997)
   Provisions for doubtful accounts receivable                                              286               900             2,955
   Net income from unconsolidated subsidiary                                               --                (604)             --
   Changes in assets and liabilities:
     Accounts receivable                                                                 (4,633)           (8,960)           (4,222)
     Prepaid expenses and other                                                            (794)             (257)             (412)
     Accounts payable, accrued payroll and other
       accrued liabilities                                                                5,255            (1,448)            2,702
     Income taxes payable                                                                 1,837            (3,397)            1,305
     Deferred revenue                                                                     3,125             2,326             3,560
     Other assets and liabilities                                                           375              (779)             (553)
                                                                                       --------------------------------------------
     Net cash provided by operating activities                                           16,152               207            16,005
                                                                                       --------------------------------------------
Cash flows from investing activities:
   Purchases of marketable securities                                                   (16,878)          (24,836)          (52,354)
   Maturities of marketable securities                                                   18,731            14,374             3,763
   Sales of marketable securities                                                          --               8,697            24,709
   Additions to property and equipment                                                   (4,332)          (16,012)           (4,268)
   Disposals of property and equipment                                                      149               805                99
   Capitalized software development costs                                                  (335)           (1,540)           (1,344)
   Net cash (paid) acquired in acquisitions                                              (2,885)            2,868              --
   Other                                                                                   (480)           (1,042)             --
                                                                                       --------------------------------------------
     Net cash used in investing activities                                               (6,030)          (16,686)          (29,395)
                                                                                       --------------------------------------------
Cash flows from financing activities:
   Repurchase of common stock                                                              --                --              (1,672)
   Proceeds from issuance of common stock                                                  --              12,774              --
   Proceeds from exercise of common stock options and
     purchases under Employee Stock Purchase Plan                                         2,607             3,319             3,068
   Tax benefit from disqualifying dispositions of common stock                            2,323             4,908             1,093
   Other                                                                                   (976)             (374)             --
                                                                                       --------------------------------------------
     Net cash provided by financing activities                                            3,954            20,627             2,489
                                                                                       --------------------------------------------
Effect of exchange rate fluctuations on cash and cash
   equivalents                                                                             --                (385)             (230)
Net increase (decrease) in cash and cash equivalents                                     14,076             3,763           (11,131)
Cash and cash equivalents at beginning of year                                            7,746            21,822            25,585
                                                                                       --------------------------------------------
Cash and cash equivalents at end of year                                               $ 21,822          $ 25,585          $ 14,454
                                                                                       ============================================
Supplemental disclosure of cash flow information:
   Cash paid during the year for income taxes, net                                     $    700          $  2,346          $  1,243
Supplemental schedule of noncash investing activities:
   Unrealized holding gain (loss) on marketable securities                             $    736          $   (309)         $   --

<FN>
The accompanying notes are an integral part of these consolidated financial statements.
</FN>
</TABLE>

36

<PAGE>


Integrated Systems, Inc.
Notes to Consolidated Financial Statements

1. Summary of Significant Accounting Policies

NATURE  OF  OPERATIONS   Integrated  Systems,   Inc.  (the  "Company")  provides
comprehensive  solutions of software  products and engineering  services for the
development  of embedded  microprocessor-based  applications  for the  real-time
embedded computer market. The real-time embedded computer market is being driven
by the increasing demand for low-cost, high-performance,  enhanced functionality
devices.   These  devices,  using  the  32-bit  embedded   microprocessor,   are
increasingly  requiring  complex  software  applications in order to address the
functionality and intelligence that the market demands.

The Company offers a solution for embedded software development that consists of
design and development tools, RTOS software and components, application enablers
and design  services.  The  Company's  products  are designed to enable users to
accelerate the design, development, debugging, implementation and maintenance of
embedded  software.  The  Company's  products  and  services  reduce the expense
associated with embedded software and system development and enable customers to
develop systems that have greater functionality,  enhanced performance, improved
reliability  and ease of use. The Company  markets and supports its products and
provides services on a worldwide basis to a variety of users in a broad range of
industries,  including  telecommunications,   data  communications,  automotive,
digital office and consumer electronics,  through a direct sales force augmented
by a telemarketing organization, distributors and sales representatives.

PRINCIPLES OF CONSOLIDATION The consolidated  financial  statements  include the
accounts of the  Company  and its wholly  owned  subsidiaries.  All  significant
intercompany  accounts and  transactions  have been  eliminated.  Investments in
affiliated  companies  that are not  controlled  are  carried  at cost  plus the
Company's equity in undistributed earnings since acquisition (see Note 2).

USE OF ESTIMATES The  preparation  of financial  statements  in conformity  with
generally accepted  accounting  principles requires management to make estimates
and assumptions  that affect the recorded  amounts of assets and liabilities and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements and the recorded  amounts of revenues and expenses during a reporting
period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS Cash and cash equivalents, which are held at a variety
of financial  institutions,  include demand deposits,  money market accounts and
all highly liquid debt instruments with an original or remaining maturity at the
date of purchase of three months or less.  The Company has not  experienced  any
material losses relating to any investment instruments.

FAIR VALUE OF FINANCIAL  INSTRUMENTS AND CONCENTRATIONS The amounts reported for
cash equivalents,  accounts receivable, accounts payable and accrued liabilities
are  considered  to  approximate  fair  values  based  upon  comparable   market
information  available at February 28,  1998.  The fair values of the  Company's
marketable securities are set forth in Note 3.

Financial  instruments that potentially subject the Company to concentrations of
credit risks  comprise,  principally,  cash,  cash  equivalents,  investments in
marketable  securities and accounts  receivable.  The Company invests its excess
cash in government securities, tax exempt municipal securities, preferred stock,
Eurodollar notes and bonds, time deposits,  certificates of deposit,  commercial
paper  rated  Aa or  better  and  other  specific  money  market  and  corporate
instruments of similar  liquidity and credit  quality.  With respect to accounts
receivable,  the  Company's

                                                                              37

<PAGE>


Notes to Consolidated Financial Statements

customer base is dispersed across many different  geographic  areas. The Company
performs ongoing evaluations of its customers' financial condition and generally
does not require  collateral.  The Company  maintains  allowances  for potential
credit losses.

The Company licenses certain software  development tools from other companies to
distribute with its own products. The inability of such third parties to provide
competitive  products with adequate  features and high quality on a timely basis
or to cooperate in sales and marketing  activities could have a material adverse
effect on the Company's business, financial condition and results of operations.
In addition, the Company's products compete with products produced by certain of
the Company's licensors. There can be no assurance that, upon the termination or
expiration  of these  licenses,  such  licenses  will be available on reasonable
terms  or at  all,  or  that  the  Company  could  obtain  similar  products  as
substitutes.  The  inability  to  license  such  products  could have a material
adverse  effect on the Company's  business,  financial  condition and results of
operations.

MARKETABLE    SECURITIES   All   marketable   securities   are   classified   as
available-for-sale   and  therefore  are  carried  at  fair  value.   Marketable
securities  classified as current assets have scheduled  maturities of less than
one year,  while  marketable  securities  classified as  noncurrent  assets have
scheduled maturities of more than one year.  Unrealized holding gains and losses
on such securities are reported net of related taxes as a separate  component of
shareholders' equity.  Realized gains and losses on sales of all such securities
are  reported in  interest  and other  income and  computed  using the  specific
identification cost method.

REVENUE  RECOGNITION  Product Revenue.  Product revenue consists  principally of
fees from the licensing and sale of software  products.  Product licensing fees,
including advanced production royalty payments,  are generally recognized when a
customer  purchase  order  has  been  received,  a  license  agreement  has been
executed, the software has been shipped, remaining obligations are insignificant
and collection of the resulting account receivable is probable.  Generally,  the
Company's distributors do not have the right of return. Provisions for estimated
product  returns,  warranty  costs  and  insignificant  vendor  obligations  are
recorded at the time products are shipped.

Services  Revenue.  Services  revenue  consists  principally of maintenance  and
renewal  fees for  providing  product  updates,  technical  support  and related
services for software  products,  and engineering and consulting  services fees.
Software maintenance revenue bundled with the initial product license revenue is
deferred and recognized  ratably over the related  service  period.  The Company
unbundles a portion of its initial  product  license revenue related to software
maintenance  revenue  based upon  product  license  renewal  amounts,  which are
substantially  less than the  initial  product  license  fee,  or based upon the
amount charged for such services when they are sold separately.  License renewal
fees, which are  substantially  less than the initial license,  are deferred and
recognized   ratably  over  the  license  term.  Revenue  from  separately  sold
maintenance contracts is recognized ratably over the related service period. The
basis for revenue  recognition on engineering and consulting  services contracts
depends on the contractual  terms. For cost  reimbursement  and firm fixed-price
contracts,  revenues are recognized as the work is performed, based on the ratio
of incurred costs to estimated total  completion  costs.  For  time-and-material
contracts,  revenues are recognized on the basis of direct labor hours and other
direct costs incurred.  Provisions for anticipated losses are made in the period
in which they first become determinable.

PROPERTY AND EQUIPMENT Property and equipment are recorded at cost. Depreciation
is computed using the  straight-line  method over the estimated  useful lives of
the  respective  assets  (three to twenty  years).  Leasehold  improvements  are
amortized  over  the  lease  term or the  estimated  useful  life of the  asset,
whichever is shorter.  The cost and  accumulated  depreciation of assets sold or
retired  are  removed  from  the  accounts  and  any  resulting  gain or loss is
reflected in results of operations.

38

<PAGE>


SOFTWARE  DEVELOPMENT  COSTS The Company  capitalizes  certain  costs to develop
computer software to be licensed or otherwise marketed to customers.  Such costs
are  amortized  using the  greater of the amount  computed  using the ratio that
current  gross  revenues  for a  product  bear  to  the  total  of  current  and
anticipated future gross revenues for that product,  or on a straight-line basis
over three years.  The Company  evaluates the estimated net realizable  value of
each software product at each balance sheet date and records  write-downs to net
realizable  value for any  products for which the net book value is in excess of
net realizable value.  Software  development costs included in intangible assets
at February 28, 1997 and 1998, were $1,749,000 and $2,144,000, respectively, net
of  accumulated   amortization  of  $2,711,000  and  $3,660,000,   respectively.
Capitalized software development costs were $335,000,  $1,540,000 and $1,344,000
in fiscal  years  1996,  1997 and  1998,  respectively.  Amortization,  which is
included in cost of product  revenue,  was  $921,000,  $968,000  and $949,000 in
fiscal years 1996, 1997 and 1998, respectively.

INTANGIBLE ASSETS  Intangible  assets consist  primarily of goodwill,  purchased
software and  capitalized  software  development  costs.  Goodwill and purchased
software are  amortized on a  straight-line  basis over their  estimated  useful
lives. The Company  periodically  evaluates the  recoverability  of goodwill and
purchased software based upon estimated  undiscounted future cash flows from the
related products and businesses acquired.

EMPLOYEE  STOCK PLANS The Company  accounts  for its stock  option plans and its
employee  stock  purchase plan in accordance  with  provisions of the Accounting
Principles  Board's  Opinion No. 25 ("APB 25"),  "Accounting for Stock Issued to
Employees." In 1995, the Financial  Accounting  Standards Board issued Statement
of Financial  Accounting  Standards  No. 123 ("SFAS No. 123"),  "Accounting  for
Stock-Based Compensation." SFAS No. 123 establishes a fair value-based method of
accounting  for  stock-based  plans and is effective for fiscal years  beginning
after  December 15, 1995.  The Company is continuing to account for its employee
stock plans in  accordance  with the  provisions of APB 25, and has provided pro
forma disclosure in Note 6 as if the measurement  provisions of SFAS No. 123 had
been adopted.

INCOME  TAXES The  Company's  provision  for income  taxes is  comprised  of its
current tax liability and the change in its deferred tax assets and liabilities.
Deferred tax assets and liabilities are determined based on differences  between
financial  reporting  and tax bases of assets and  liabilities  and are measured
using the enacted tax rates and laws that will be in effect when the differences
are expected to reverse.

ADVERTISING  The  Company  expenses  advertising  costs  as they  are  incurred.
Advertising  expense  for  fiscal  years  1996,  1997  and  1998  was  $927,000,
$1,566,000 and $2,643,000, respectively.

COMPUTATION  OF EARNINGS  PER SHARE The Company  has adopted the  provisions  of
Financial Accounting Standards Board Statement of Financial Accounting Standards
No. 128 ("SFAS No. 128"), "Earnings Per Share," which specifies the computation,
presentation and disclosure  requirements  for earnings per share.  SFAS No. 128
supersedes  Accounting  Principles  Board  Opinion  No.  15,  is  effective  for
financial  statements  issued for periods  ending  after  December  15, 1997 and
requires that prior periods be restated. For all periods presented, earnings per
share has been computed in accordance with SFAS No. 128.

Basic earnings per share is computed using the weighted average number of common
shares  outstanding  during the period.  Diluted  earnings per share is computed
using the  weighted  average  number  of common  and  common  equivalent  shares
outstanding during the period.  Common equivalent shares result from the assumed
exercise of outstanding  stock options that have a dilutive effect when applying
the treasury stock method (see Note 9).

                                                                              39

<PAGE>


Notes to Consolidated Financial Statements

FOREIGN CURRENCY  TRANSLATION Assets and liabilities of foreign operations where
the functional currency is the local currency,  are translated into U.S. dollars
at the fiscal year end exchange  rate.  Revenues and expenses are  translated at
the average rates prevailing  during the year. The related gains and losses from
translation are recorded as translation  adjustments in a separate  component of
shareholders' equity.  Foreign currency transaction gains and losses, as well as
translation  adjustments for assets and liabilities of foreign  operations where
the  functional  currency  is the  U.S.  dollar,  are  included  in  results  of
operations.  The  Company  incurred  net  foreign  currency  exchange  losses of
$434,000 in fiscal year 1998.  Net foreign  currency  exchange  gains and losses
were not material in fiscal years 1996 and 1997.

RECLASSIFICATIONS  Certain prior year amounts have been  reclassified to conform
to the  current  year  presentation.  These  reclassifications  had no effect on
previously reported results of operations or shareholders' equity.

RECENT  ACCOUNTING   PRONOUNCEMENTS  In  June  1997,  the  Financial  Accounting
Standards  Board  issued  Statement of Financial  Accounting  Standards  No. 130
("SFAS No. 130"), "Reporting  Comprehensive Income," which establishes standards
of  disclosure  and  financial   statement   presentation  for  reporting  total
comprehensive  income in  individual  components.  SFAS No. 130 is effective for
fiscal years  beginning after December 15, 1997 and will require earlier periods
to be restated to reflect application of the provisions of SFAS No. 130.

Additionally,  in June 1997,  the Financial  Accounting  Standards  Board issued
Statement  of  Financial   Accounting   Standards  No.  131  ("SFAS  No.  131"),
"Disclosure  About  Segments of an Enterprise  and Related  Information,"  which
specifies   disclosure   requirements  for  segment  reporting.   The  statement
supersedes  SFAS No. 14 and SFAS No. 18, is effective for fiscal years beginning
after  December  15,  1997,  and  requires  earlier  periods to be  restated  if
practical.

The impact of the  adoption of the above  statements,  if any, on the  financial
statements of the Company has not yet been determined.

In October  1997 and March 1998,  the American  Institute  of  Certified  Public
Accountants  issued  Statement of Position 97-2 ("SOP 97-2")  "Software  Revenue
Recognition,"  and  Statement  of Position  98-4 ("SOP  98-4")  "Deferral of the
Effective  Date  of  Provision  of  SOP  97-2,  Software  Revenue  Recognition,"
respectively,  which supersede Statement of Position 91-1 ("SOP 91-1") "Software
Revenue Recognition." The Statements are effective for the Company's fiscal year
1999. The Company believes it is currently  substantially in compliance with the
provisions of SOP 97-2 and SOP 98-4.

In April 1998, the American  Institute of Certified  Public  Accountants  issued
Statement of Position 98-1,  ("SOP 98-1")  "Accounting for the Costs of Computer
Software Developed or Obtained for Internal Use." SOP 98-1 provides guidance for
determining whether computer software is internal-use software and on accounting
for the  proceeds of computer  software  originally  developed  or obtained  for
internal use and then subsequently sold to the public. It also provides guidance
on  capitalization  of the costs  incurred  for computer  software  developed or
obtained for internal  use. The Company has not yet  determined  the impact,  if
any, of adopting this statement.  The disclosures prescribed by SOP 98-1 will be
effective for the Company's fiscal year 2000.

40

<PAGE>


2. Acquisitions

MERGER WITH TAKEFIVE In October 1995,  the Company  acquired  TakeFive  Software
GmbH  ("TakeFive"),  an Austrian  corporation,  by issuing 871,980 shares of its
common stock in exchange for 97% of the shares of TakeFive.  The remaining 3% of
the shares of TakeFive were  purchased for cash.  The business  combination  was
accounted for as a pooling of interests and the Company's  results of operations
include  those of TakeFive  for all  periods  presented.  Prior to the  business
combination,   TakeFive  was  in  the  business  of  developing,  marketing  and
supporting  software  tools  used  in  software  development.  The  Company  has
continued  the  business of TakeFive  and  operates  TakeFive as an  independent
subsidiary.

MERGER WITH DOCTOR DESIGN In January 1996, the Company  acquired  Doctor Design,
Inc.  ("Doctor  Design"),   an  engineering  services  company  specializing  in
multimedia  hardware,  software  and  application-specific   integrated  circuit
technology.   The  Company  issued  743,214  shares  of  its  common  stock  for
substantially  all the  outstanding  stock of Doctor  Design.  The Company  also
assumed stock options that converted into options to purchase  263,724 shares of
the Company's  common  stock.  The business  combination  was accounted for as a
pooling of interests  and the Company's  results of operations  include those of
Doctor Design for all periods presented.  The Company has continued the business
of Doctor Design,  which has now been formally  renamed the  Integrated  Systems
Design Center and operates it as an independent subsidiary.

MERGER WITH  EPILOGUE In July 1996,  the Company  acquired  Epilogue  Technology
Corporation ("Epilogue"), a New Mexico corporation, by issuing 630,963 shares of
common  stock in exchange  for all  outstanding  Epilogue  common and  preferred
stock.  The Company also assumed  stock options that  converted  into options to
purchase 69,033 shares of the Company's common stock.  The business  combination
was  accounted for as a pooling of  interests.  Results of operations  have been
included  from the  date of  acquisition.  Prior  period  results  have not been
restated to include Epilogue  operations as such operations were  insignificant.
Prior to the business  combination,  Epilogue was a developer and distributor of
network  management and embedded  Internet software for  telecommunications  and
data  communications  equipment  manufacturers,  embedded software suppliers and
networking related integrated circuit manufacturers.  The Company has integrated
the business of Epilogue with that of the Company.

<TABLE>
COMBINED AND SEPARATE  RESULTS OF MERGERS  Combined and separate  results of the
Company,  the Integrated  Systems  Design Center and TakeFive  during the period
preceding the mergers were as follows:

<CAPTION>
                                                                   Integrated
                                                                      Systems
                                                       Integrated      Design
(in thousands)                                           Systems       Center    TakeFive    Combined
                                                       ----------------------------------------------
<S>                                                    <C>         <C>          <C>         <C>      
Nine months ended November 30, 1995 (unaudited):
   Net revenue                                         $  47,455   $    9,171   $   3,193   $  59,819
   Net income                                          $   3,134   $      882   $     580   $   4,596
</TABLE>

Net  revenues and net income of Epilogue  for the  pre-acquisition  periods were
insignificant.

                                                                              41

<PAGE>


Notes to Consolidated Financial Statements

ACQUISITION  OF  DIAB  DATA In  December  1995,  the  Company  acquired  certain
technology, related assets and all of the outstanding common stock of Diab Data,
Inc. ("Diab Data") for  $1,735,000.  The acquisition was accounted for under the
equity method of accounting and was included in other assets in the consolidated
balance  sheet as of February  28,  1996.  The  acquisition  cost  exceeded  the
underlying equity in net assets by $1,395,000,  of which $756,000,  $425,000 and
$214,000  was  allocated  to  existing   software  products  which  had  reached
technological  feasibility,  goodwill and in-process software  development which
had  not  reached  technological  feasibility,   respectively,  based  on  their
respective fair values.  The costs allocated to goodwill are amortized over five
years.   The  costs   allocated  to  existing   products,   net  of  accumulated
amortization, were charged to acquisition-related and other costs in fiscal year
1997, and the costs allocated to in-process software development were charged to
acquisition-related and other costs in the period of acquisition. In addition to
the purchase price, the Company paid bonuses to  non-shareholder  management and
employees totaling  $1,645,000,  which were expensed and are included as part of
acquisition-related  and other costs in the consolidated statement of income for
fiscal  year  1996.  The  operations  of Diab  Data  were  not  material  to the
consolidated  financial  statements of the Company in fiscal year 1996 or fiscal
year 1997, and accordingly, separate financial information for Diab Data has not
been presented.

In November 1996, the Company  revised the terms of the acquisition of Diab Data
and paid bonuses to management  and  employees of Diab Data of $4.8 million.  In
addition,  as a result of the revision in terms,  the Company is now required to
consolidate the results of this subsidiary,  which previously had been accounted
for under the equity method of accounting. Accordingly, the operating results of
Diab Data have been consolidated with those of the Company beginning December 1,
1996.

OTHER  ACQUISITIONS In September  1994, the Company  acquired  certain  software
products  and  other  assets  for  a  total  purchase  price  of   approximately
$3,467,000,  consisting  of  $2,081,000  in cash and non-cash  consideration  of
approximately  316,000  shares  of  restricted  common  stock  with a  value  of
approximately  $1,386,000.  The acquisition was accounted for using the purchase
method of accounting and accordingly, its operations were included with those of
the Company  since the date of  acquisition.  Substantially  all of the purchase
price was allocated to purchased  software,  which prior to the third quarter of
fiscal year 1996, was being amortized on a straight-line basis over a seven-year
period.  During the third  quarter of fiscal year 1996,  the Company  determined
that the  recoverability  of the  purchased  software  was not  probable  as the
products purchased would be replaced by the products acquired in the merger with
TakeFive.  Accordingly,  capitalized  purchased software totaling $3,083,000 was
written-off  and  charged  to   acquisition-related   and  other  costs  in  the
consolidated statement of income.

<TABLE>
ACQUISITION-RELATED  AND OTHER COSTS There were no acquisition-related and other
costs in fiscal year 1998.  Acquisition-related and other costs for fiscal years
1996 and 1997 consisted of:

<CAPTION>
                                                                                Year Ended February 28,
(in thousands)                                                                       1996        1997
                                                                                ---------------------
<S>                                                                             <C>         <C>      
In-process software development costs written-off                               $     214          --
Bonus payments to management and employees of acquired company                      1,645   $   4,750
Purchased software written-off                                                      3,083         616
Professional fees and other acquisition costs                                       1,585         310
Termination fee payable to a distributor                                              800          --
                                                                                ---------------------
                                                                                $   7,327   $   5,676
                                                                                =====================
</TABLE>


Termination  fee payable to a distributor  results from the  termination  of the
Company's reseller arrangement with a Japanese distributor in February 1996.

42

<PAGE>


3. Marketable Securities

<TABLE>
Marketable securities at February 28, 1997 are summarized below:

<CAPTION>
                                                Fair        Cost   Unrealized  Unrealized  Unrealized
(in thousands)                                 Value       Basis        Gains      Losses   Net Gains
                                          -----------------------------------------------------------
<S>                                       <C>          <C>         <C>          <C>         <C>      
U.S. Government securities                $   19,818   $  19,737   $      101   $     (20)  $      81
Municipal securities                           5,832       5,783           49          --          49
Preferred stock                                3,460       3,344          135         (19)        116
                                          -----------------------------------------------------------
                                          $   29,110   $  28,864   $      285   $     (39)        246
                                          ===============================================
Related deferred taxes                                                                            (98)
                                                                                            ---------
Unrealized holding gain, net                                                                $     148
                                                                                            =========
</TABLE>


<TABLE>
Marketable securities at February 28, 1998 are summarized below:

<CAPTION>
                                                Fair        Cost   Unrealized  Unrealized  Unrealized
(in thousands)                                 Value       Basis        Gains      Losses   Net Gains
                                          -----------------------------------------------------------
<S>                                       <C>          <C>         <C>          <C>         <C>      
U.S. Government securities                $   49,235   $  49,014   $      288   $     (67)  $     221
Municipal securities                           3,757       3,731           26          --          26
                                          -----------------------------------------------------------
                                          $   52,992   $  52,745   $      314   $     (67)        247
                                          =================================================       (99)
Related deferred taxes                                                                      --------- 
                                                                                            $     148 
Unrealized holding gain, net                                                                ========= 
                                                                                            
</TABLE>


At February 28, 1998,  all  marketable  debt  securities  classified  as current
assets  have  scheduled  maturities  of less  than  one  year.  Marketable  debt
securities  classified as noncurrent assets have scheduled  maturities of one to
five years.

4. Property and Equipment

                                                                February 28,
                                                         ----------------------
(in thousands)                                              1997          1998
                                                         ----------------------
Building                                                 $  6,587      $  6,587
Furniture and fixtures                                      1,766         3,113
Computer equipment                                         14,724        17,785
Leasehold improvements                                        596           129
                                                         ----------------------
                                                           23,673        27,614
Less accumulated depreciation and amortization            (11,117)      (14,586)
                                                         ----------------------
                                                           12,556        13,028
Land                                                        5,400         5,400
                                                         ----------------------
                                                         $ 17,956      $ 18,428
                                                         ======================


Depreciation  expense was $2,203,000,  $3,131,000 and $3,697,000 in fiscal years
1996, 1997 and 1998, respectively.

                                                                              43

<PAGE>


Notes to Consolidated Financial Statements

5. Leasehold Commitments and Contingencies

OPERATING LEASES Future minimum lease payments under all noncancelable operating
leases  amount to  approximately  $2,128,000,  $1,066,000,  $306,000,  $135,000,
$58,000  and  $146,000  for  fiscal  years  1999,  2000,  2001,  2002,  2003 and
thereafter,  respectively. Rent expense for fiscal years 1996, 1997 and 1998 was
$1,455,000, $1,633,000 and $2,372,000, respectively.

CONTINGENCIES  In October 1997,  Greenhills  Software,  Inc.  ("Greenhills"),  a
supplier,  filed a demand for  arbitration  against the Company,  alleging among
other  things,  breach  of  contract,  fraud,  negligent  misrepresentation  and
misappropriation  of trade name. In December 1997, the Company  responded to the
arbitration demand, and filed a counter-claim  against  Greenhills.  The Company
believes  it has  meritorious  defenses  to all claims  against  the Company and
intends  to  defend  the  claims  vigorously.  No  accrual  has been made in the
accompanying  consolidated  financial  statements related to this dispute as the
ultimate outcome is presently not determinable. The dispute, however, is subject
to inherent  uncertainties  and thus,  there can be no assurance that it will be
resolved  favorably  to the Company or that it will not have a material  adverse
effect  on  the  Company's   consolidated   financial  position  or  results  of
operations.

The Company is subject to various legal proceedings and claims,  either asserted
or unasserted,  which arise in the ordinary course of business. While management
does not  believe  that the  outcome  of any of the  legal  matters  will have a
material adverse effect on the Company's consolidated financial position,  legal
matters  are  subject  to  inherent  uncertainties  and  thus,  there  can be no
assurance that these matters will be resolved favorably to the Company.


6. Shareholders' Equity

COMMON STOCK SPLIT AND COMMON STOCK  REPURCHASE On March 4, 1996,  the Company's
Board of Directors authorized a two-for-one stock split to be effective on April
5, 1996 for the  shareholders  of record  on March 18,  1996.  All share and per
share information in the accompanying  financial statements has been restated to
give retroactive recognition to the stock split for all periods presented.

In April 1997, the Company  announced that the Board of Directors had authorized
the Company to repurchase  up to 1,000,000  shares of common stock for cash from
time-to-time  at market prices.  In April 1997, the Company  repurchased  20,000
shares of common stock in open market transactions for $187,500 under this stock
repurchase  program.  In January  1998,  the Company  repurchased  an additional
115,000 shares of common stock in open market  transactions for $1,485,625 under
this stock repurchase program.

COMMON  STOCK  OPTION  PLANS At February  28,  1998,  the  Company had  reserved
4,685,494  shares of common stock for issuance under various stock option plans,
including  plans  resulting from the business  combinations  with the Integrated
System  Design  Center  and  Epilogue  (see Note 2). The plans  provide  for the
granting of incentive stock options to officers and employees of the Company and
nonqualified stock options to officers, employees,  directors and consultants of
the  Company at prices not less than fair  market  value (as  determined  by the
Compensation  Committee of the Board of Directors) on the date of grant. Options
are  exercisable  at times and in  increments  as specified by the  Compensation
Committee.  Options  generally  vest over four or five  years and  expire in ten
years.

44

<PAGE>


<TABLE>
Activity under these plans is as follows:

<CAPTION>
                                                                                                          Weighted
                                                                   Shares            Number of             Average
                                                                Available         Shares Under      Exercise Price
(in thousands, except share and per share amounts)              for Grant               Option           Per Share             Total
                                                                -------------------------------------------------------------------
<S>                                                             <C>                  <C>                 <C>             <C>       
Balances, February 28, 1995                                     2,685,146            2,423,868           $    4.23       $   10,258
   Options granted                                               (882,272)             882,272           $   13.50           11,915
   Options exercised                                                 --               (540,254)          $    3.79           (2,050)
   Options canceled                                               239,966             (239,966)          $    5.91           (1,419)
                                                                ---------            ---------                           ----------
Balances, February 28, 1996                                     2,042,840            2,525,920           $    7.40           18,704
   Assumption of Epilogue options                                    --                 69,033           $    7.50              518
   Options granted                                             (1,051,798)           1,051,798           $   23.64           24,867
   Options exercised                                                 --               (651,390)          $    3.60           (2,344)
   Options canceled                                               184,453             (194,701)          $   12.85           (2,501)
                                                                ---------            ---------                           ----------
Balances, February 28, 1997                                     1,175,495            2,800,660           $   14.01           39,244
   Options granted                                             (2,238,990)           2,238,990           $   10.70           23,948
   Options exercised                                                 --               (290,661)          $    4.84           (1,408)
   Options canceled                                             1,823,273           (1,823,273)          $   18.22          (33,218)
   Shares added to 1988 Plan                                    1,000,000                 --                                   --
                                                                ---------            ---------                           ----------
Balances, February 28, 1998                                     1,759,778            2,925,716           $    9.76       $   28,566
                                                                =========            =========                           ==========
</TABLE>


<TABLE>
The  following  table  summarizes  information  with  respect  to stock  options
outstanding at February 28, 1998:

<CAPTION>
(number of options in thousands)               Options Outstanding           Options Exercisable
                                 --------------------------------------------------------------------------
                                                      Weighted     Weighted                        Weighted
                                         Number        Average      Average          Number         Average
                                 Outstanding at      Remaining     Exercise  Exercisable at        Exercise
                                   February 28,    Contractual        Price    February 28,           Price
Range of Exercise Price Per Share          1998   Life (years)    Per Share            1998       Per Share
- -----------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>        <C>                 <C>        <C>    
     $  0.67 - $  1.35                       69          5.65       $  1.04              50        $  0.93
     $  2.46 - $  3.88                      231          5.25       $  3.42             220        $  3.44
     $  4.49 - $  6.88                      329          6.10       $  5.07             239        $  5.12
     $  7.24 - $ 10.88                    1,724          8.90       $  9.70             148        $  8.87
     $ 11.11 - $ 16.24                      304          9.18       $ 13.02              38        $ 13.33
     $ 17.24 - $ 25.86                      263          7.19       $ 19.71              70        $ 19.70
     $ 25.86 - $ 36.00                        6          8.36       $ 29.48               2        $ 29.31
                                          -----                                         ---
                                          2,926          8.09       $  9.76             767        $  6.88
                                          =====                                         ===
</TABLE>


In April  1997,  the  Company  offered  employees  the right to  cancel  certain
outstanding stock options 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  original  outstanding  stock  options.  Options  to  purchase  a total of
1,222,132 shares at original exercise prices ranging from $14.625 to $35.625 per
share were canceled and new options 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.

                                                                              45

<PAGE>


Notes to Consolidated Financial Statements

EMPLOYEE  STOCK  PURCHASE PLAN At February 28, 1998,  the Company had reserved a
total of 408,922  shares of common  stock for issuance  under its 1990  Employee
Stock Purchase Plan (the "ESPP"). The purpose of the ESPP is to provide eligible
employees of the Company  with a means of acquiring  common stock of the Company
through  payroll  deductions.  The  purchase  price of such stock under the ESPP
cannot be less than 85% of the lower of the fair market  value on the  specified
purchase date or the beginning of the offering period. During fiscal years 1996,
1997 and 1998,  approximately  72,000 shares,  51,000 shares and 144,000 shares,
respectively,  were sold through the ESPP. The aggregate fair value and weighted
average  fair value per share of purchase  rights under the ESPP in fiscal years
1996, 1997 and 1998 were $237,000,  $667,000 and $757,000 and $4.41,  $11.09 and
$6.26, respectively.

PRO FORMA STOCK-BASED COMPENSATION The Company has elected to continue to follow
the provisions of APB No. 25,  "Accounting  for Stock Issued to Employees,"  for
financial reporting purposes and has adopted the  disclosure-only  provisions of
Statement  of  Financial   Accounting   Standards  No.  123  ("SFAS  No.  123"),
"Accounting for Stock-Based  Compensation."  Accordingly,  compensation cost has
not been recognized in the Company's  Consolidated  Statements of Income for the
Company's  Stock Option Plans or ESPP. Had  compensation  cost for the Company's
Stock Option Plans and ESPP been determined  under the fair value  provisions of
SFAS No. 123 for awards  granted  subsequent to February 28, 1995, the Company's
net income and net income per share for the years ended February 28, 1996,  1997
and 1998 would have been reduced to the pro forma amounts indicated below:


                                                 Year Ended February 28,
                                               ---------------------------
(in thousands, except per share amounts)          1996      1997      1998
                                               ---------------------------
Net income--as reported                        $ 5,283   $ 7,254   $ 6,073
Net income--pro forma                          $ 4,704   $ 4,497   $ 2,447
Basic net income per share--as reported        $  0.25   $  0.32   $  0.26
Basic net income per share--pro forma          $  0.22   $  0.20   $  0.11
Diluted net income per share--as reported      $  0.24   $  0.31   $  0.25
Diluted net income per share--pro forma        $  0.21   $  0.19   $  0.11


The  above  pro-forma  disclosures  are not  necessarily  representative  of the
effects on reported net income for future years.

The  aggregate  fair value and weighted  average fair value per share of options
granted in fiscal years 1996, 1997 and 1998 were $9.1 million, $17.0 million and
$8.8 million,  and $10.30,  $16.15 and $3.92 per share,  respectively.  The fair
value  of each  option  grant  is  estimated  on the  date of  grant  using  the
Black-Scholes   Option  Pricing  Model  with  the  following   weighted  average
assumptions:

                                                Year Ended February 28,
                                 -----------------------------------------------
                                      1996                1997              1998
                                 -----------------------------------------------
Expected volatility                 79.47%              79.67%            71.18%
Risk-free interest rate              6.34%               6.15%             6.28%
Expected life                    5.5 years           5.0 years         4.5 years
Expected dividend yield              0.00%               0.00%             0.00%

46

<PAGE>



The Company has also estimated the fair value for the purchase  rights under the
Employee Stock Purchase Plan using the Black-Scholes  Option Pricing Model, with
the  following  assumptions  for rights  granted in fiscal years 1996,  1997 and
1998:

                                                  Year Ended February 28,
                                         ---------------------------------------
                                              1996            1997          1998
                                         ---------------------------------------
Expected volatility                         52.25%          83.16%        69.65%
Risk-free interest rate                      5.81%           5.81%         5.56%
Expected life                            0.5 years       0.5 years     0.5 years
Expected dividend yield                      0.00%           0.00%         0.00%


7. 401(k) Plans

The Company has two 401(k) Plans (the Plans),  including a plan  resulting  from
the business  combination with the Integrated System Design Center (see Note 2),
that cover essentially all domestic employees.  Each eligible employee may elect
to  contribute  to the Plans,  through  payroll  deductions,  up to 15% of their
compensation,  subject to certain limitations.  The Company is obligated to make
matching  contributions  on behalf of each  participating  employee in an amount
equal  to  25%  of an  employee's  contribution,  up to  2%  of  the  employee's
compensation. For individuals who were employed by the Company prior to December
1, 1994, Company contributions are fully vested on the date of contribution. For
individuals  who became  employed  subsequent  to  November  30,  1994,  Company
contributions vest ratably over a six-year period.  The Company's  contributions
charged against income totaled approximately $390,000,  $410,000 and $481,000 in
fiscal years 1996, 1997 and 1998, respectively.


8. Income Taxes

The provision for income taxes included the following:

                                                   Year Ended February 28,
                                            ----------------------------------
(in thousands)                                    1996        1997        1998
                                            ----------------------------------
Federal:
   Current                                  $    3,211   $   2,546   $   2,691
   Deferred                                     (1,584)        245        (955)
                                            ----------------------------------
                                                 1,627       2,791       1,736
                                            ----------------------------------
State:
   Current                                       1,208         884         463
   Deferred                                       (593)         43         (88)
                                            ----------------------------------
                                                   615         927         375
                                            ----------------------------------
Foreign                                          1,270         187       1,017
                                            ----------------------------------
                                            $    3,512   $   3,905   $   3,128
                                            ==================================

                                                                              47

<PAGE>


Notes to Consolidated Financial Statements

<TABLE>
The reconciliation  between the effective tax rates and statutory federal income
tax rates is shown in the following table:

<CAPTION>
                                                                                 Year Ended February 28,
                                                                           ------------------------------------
                                                                             1996            1997         1998
                                                                           ------------------------------------
<S>                                                                        <C>              <C>           <C>  
Statutory federal income tax rate                                          34.0%            35.0%         34.0%
State taxes, net of federal income tax benefit                              5.4              5.5           5.0
Acquisition-related costs                                                   8.0              1.0           --
Research and development tax credit and credit carryforwards               (2.0)            (4.0)         (5.4)
Foreign sales corporation tax benefit                                      (3.5)            (1.5)         (1.6)
Other                                                                      (1.9)            (1.0)          2.0
                                                                           ------------------------------------
Effective tax rate                                                         40.0%            35.0%         34.0%
                                                                           ====================================
</TABLE>


Domestic and foreign components of income before income taxes were:

                                                   Year Ended February 28,
                                             ----------------------------------
(in thousands)                                     1996        1997        1998
                                             ----------------------------------
Domestic                                     $    7,430   $   9,493   $   5,788
Foreign                                           1,365       1,666       3,413
                                             ----------------------------------
                                             $    8,795   $  11,159   $   9,201
                                             ==================================


The significant components of deferred tax assets and liabilities consist of the
following:

                                                             February 28,
                                                   ----------------------------
(in thousands)                                          1997               1998
                                                   ----------------------------
Deferred tax assets:
   Purchased intangibles                           $   1,274          $  1,128
   Tax credit carryforwards                            1,087             2,020
   Accelerated depreciation                              299               432
   Accrued vacation and holiday                          368               431
   Allowance for doubtful accounts                       574               572
   Other accruals and deferred revenue                   359               428
                                                   ----------------------------
                                                   $   3,961          $  5,011
                                                   ============================
Deferred tax liabilities:
   Software development costs                      $     545          $    604
   Marketable securities                                  98                99
   Cash to accrual adjustment and other                  349               341
                                                   ----------------------------
                                                   $     992          $  1,044
                                                   ============================


The Company has not  provided a valuation  allowance  for its net  deferred  tax
assets as it expects such  amounts to be realized  through  taxable  income from
future operations, or by carryback to prior years' taxable income.

48

<PAGE>


9. Earnings Per Share

<TABLE>
In accordance  with the  requirements  of SFAS No. 128, the calculation of basic
and diluted earnings per share is provided as follows:

<CAPTION>
                                                                                                    Year Ended February 28,
                                                                                           -----------------------------------------
(in thousands, except per share amounts)                                                      1996             1997             1998
                                                                                           -----------------------------------------
<S>                                                                                        <C>              <C>              <C>    
Basic:
Net Income                                                                                 $ 5,283          $ 7,254          $ 6,073
                                                                                           =========================================
Weighted average number of common shares outstanding                                        20,963           22,437           23,237
                                                                                           =========================================
Basic earnings per share                                                                   $  0.25          $  0.32          $  0.26
                                                                                           =========================================
Diluted:
Net income                                                                                 $ 5,283          $ 7,254          $ 6,073
                                                                                           =========================================
Weighted average number of common shares outstanding                                        20,963           22,437           23,237
Dilutive effect of options                                                                   1,125            1,071              841
                                                                                           -----------------------------------------
Adjusted weighted average number of common shares outstanding                               22,088           23,508           24,078
                                                                                           =========================================
Diluted earnings per share                                                                 $  0.24          $  0.31          $  0.25
                                                                                           =========================================
</TABLE>


10. Business Segment Information

The Company operates in one business segment: the design,  marketing and support
of products for automating  the process of real-time  software  development  and
system  design,   including   engineering   services  to  assist   customers  in
implementing specific solutions.

<TABLE>
The Company's foreign  operations  primarily consist of an operating  subsidiary
and sales and customer service organizations. Net revenues, operating income and
identifiable  assets of the Company's foreign  subsidiaries were not material to
the consolidated financial statements in fiscal year 1996. For fiscal years 1997
and 1998 the net  revenues,  operating  income and  identifiable  assets for the
Company's North American,  European and  Asia/Pacific  operations are summarized
below:

<CAPTION>
                                                      North
(in thousands)                                      America            Europe      Asia/Pacific      Eliminations              Total
                                                   ---------------------------------------------------------------------------------
<S>                                                <C>               <C>               <C>               <C>                <C>     
1997:
   Net revenues                                    $ 88,870          $ 20,366          $ 12,472          $(16,245)          $105,463
   Operating income                                $  5,944          $    436          $    559              --             $  6,939
   Identifiable assets                             $ 48,013          $  8,865          $  5,234          $ (4,305)          $ 57,807
1998:
   Net revenues                                    $106,505          $ 22,925          $ 16,663          $(25,624)          $120,469
   Operating income                                $  2,172          $  1,968          $  1,153              --             $  5,293
   Identifiable assets                             $ 56,274          $  8,762          $  6,397          $(10,759)          $ 60,674

                                                                                                                                  49
</TABLE>

<PAGE>


Notes to Consolidated Financial Statements

Sales and transfers  between  geographic areas are accounted for at prices which
the Company believes are arm's length prices, which in general are in accordance
with the rules and regulations of the respective governing tax authorities. Such
transfers are eliminated in the consolidated financial statements.  Identifiable
assets are those that can be directly  associated  with a particular  geographic
area.  Corporate assets include cash and cash  equivalents,  current  marketable
securities  and  noncurrent  marketable  securities  and totaled  $67,446,000 at
February 28, 1998, compared to $54,695,000 at February 28, 1997.

Export  revenues  consisting  of sales from the Company  and its U.S.  operating
subsidiaries to non-affiliated customers were as follows:

                                                  Year Ended February 28,
                                            ----------------------------------
(in thousands)                                    1996        1997        1998
                                            ----------------------------------
Europe                                      $    9,458   $   1,869   $   5,173
Asia/Pacific                                    11,305       6,588       6,268
                                            ------------------------ ---------
Total                                       $   20,763   $   8,457   $  11,441
                                            ==================================


No customer accounted for 10% or more of total revenue in the reported periods.

50

<PAGE>


Report of Independent Accountants on Schedule


The Board of Directors and Shareholders
Integrated Systems, Inc.:


In  connection  with our  audits on the  consolidated  financial  statements  of
Integrated Systems,  Inc. and Subsidiaries as of February 28, 1997 and 1998, and
for each of the  three  years in the  period  ended  February  28,  1998,  which
financial  statements  are included in the  Registrant's  Annual  Report on Form
10-K, we have also audited the financial  statement  schedule  listed in Item 14
herein.

In our opinion, the financial statement schedule, when considered in relation to
the  basic  financial  statements  taken as a  whole,  presents  fairly,  in all
material respects, the information required to be included therein.


                                                        COOPERS & LYBRAND L.L.P.


San Jose, California
March 26, 1998

                                                                              51

<PAGE>


Integrated Systems, Inc.
Schedule II

<TABLE>
Valuation and Qualifying Accounts

<CAPTION>
                                                        Column A         Column B         Column C         Column D         Column E
                                                      ------------------------------------------------------------------------------
                                                      Balance at       Charged to          Charged                           Balance
                                                       Beginning        Costs and         to Other                            at End
Description                                            of Period         Expenses         Accounts       Write-offs        of Period
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                   <C>              <C>              <C>              <C>              <C>       
For the year ended February 28, 1996:
   Allowance for doubtful accounts                    $  629,000       $  286,000             --         $   63,000       $  852,000
For the year ended February 28, 1997:
   Allowance for doubtful accounts
     and sales returns                                $  852,000       $  750,000       $  150,000       $  212,000       $1,540,000
For the year ended February 28, 1998:
   Allowance for doubtful accounts
     and sales returns                                $1,540,000       $1,257,000       $1,698,000       $2,313,000       $2,182,000
</TABLE>

52

<PAGE>


Signatures


Pursuant to the  requirements of Section 13 or 15(d) of the Securities  Exchange
Act of 1934,  the  Registrant  has duly  caused  this report to be signed on its
behalf by the undersigned, thereunto duly authorized, on May 28, 1998.


                                             INTEGRATED SYSTEMS, INC.
                                             By: /s/ NARENDRA K. GUPTA
                                             -----------------------------------
                                             Narendra K. Gupta,
                                             Chairman of the Board and Secretary


<TABLE>
Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following  persons on behalf of the  Registrant and
in the capacities and on the dates indicated.

<CAPTION>
Name                                       Title                                         Date
- ---------------------------------------------------------------------------------------------------------------------------
<S>                                        <C>                                           <C>
Principal Executive Officer:


/s/ DAVID P. ST. CHARLES                   President, Chief Executive Officer            May 28, 1998
- -----------------------------              and Director
David P. St. Charles


Principal Financial and Accounting Officer:


/s/ WILLIAM C. SMITH                       Vice President, Finance and Chief             May 28, 1998
- -----------------------------              Financial Officer
William C. Smith             


Additional Directors:


/s/ NARENDRA K. GUPTA                      Chairman of the Board and Secretary           May 28, 1998
- -----------------------------
Narendra K. Gupta

/s/ JOHN C. BOLGER                         Director                                      May 28, 1998
- -----------------------------
John C. Bolger

/s/ MICHAEL A. BROCHU                      Director                                      May 28, 1998
- -----------------------------
Michael A. Brochu

/s/ VINITA GUPTA                           Director                                      May 28, 1998
- -----------------------------
Vinita Gupta

/s/ THOMAS KAILATH                         Director                                      May 28, 1998
- -----------------------------
Thomas Kailath

/s/ RICHARD C. MURPHY                      Director                                      May 28, 1998
- -----------------------------
Richard C. Murphy

                                                                                                   53
</TABLE>


<PAGE>


                                INDEX TO EXHIBITS



                                                                    Sequentially
  Exhibit                                                             Numbered
  Number                      Exhibit                                   Page
  ------                      -------                                   ----
   21.01        List of Registrant's Subsidiaries ...................    55
   23.01        Consent of Independent Accountants ..................    56
   27.01        Financial Data Schedule .............................    57
   27.02-27.09  Restated Financial Data Schedules ...................   58-65

                                       54



                                                                   EXHIBIT 21.01

                            INTEGRATED SYSTEMS, INC.

                        LIST OF REGISTRANT'S SUBSIDIARIES


                                               State or Jurisdiction of
                                                   Incorporation or
               Name                                 Organization
               ----                                 ------------
      Integrated Systems, Inc. F.S.C            U.S. Virgin Islands   
      Integrated Systems, Inc. Limited          United Kingdom
      Integrated Systems, Inc. S.A.             France
      Integrated Systems, GmbH                  Germany
      Integrated Systems, Inc. A.B.             Sweden
      Integrated Systems (Israel) Ltd.          Israel
      Integrated Systems, Inc. GmbH             Austria
      TakeFive Software GmbH                    Austria
      TakeFive Software AG                      Switzerland
      TakeFive Software, Inc.                   California
      TakeFive Software, Ltd.                   United Kingdom
      Integrated Systems Design Center          California
      ISICAN Integrated Systems (Canada) Inc.   Canada
      Integrated Systems Japan K.K.             Japan
      Integrated Systems, Inc. Italia SRL       Italy
      Epilogue Technology Corporation           New Mexico
      Diab Data, Inc.                           California
      Diab Data GmbH                            Germany
                                               
                                         
                                       55



                                                                   EXHIBIT 23.01


                       CONSENT OF INDEPENDENT ACCOUNTANTS

    We consent to the incorporation by reference in the Registration  Statements
of Integrated Systems, Inc. on Form S-8 (File Nos. 33-35281, 33-48626, 33-70494,
33-82438,  333-1145,  333-12799)  of our reports  dated March 26,  1998,  on our
audits of the consolidated financial statements and financial statement schedule
of Integrated  Systems,  Inc. as of February 28, 1997 and 1998,  and for each of
the three years in the period ended February 28, 1998 which reports are included
in this Form 10-K.

                                              Coopers & Lybrand L.L.P.

San Jose, California
May 28, 1998

                                       56


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM THE FY98 FORM 10-K FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                       1,000
       
<S>                             <C>
<PERIOD-TYPE>                          12-MOS    
<FISCAL-YEAR-END>                  FEB-28-1998   
<PERIOD-START>                     MAR-01-1997   
<PERIOD-END>                       FEB-28-1998   
<CASH>                                             14,454        
<SECURITIES>                                        6,670        
<RECEIVABLES>                                      29,455        
<ALLOWANCES>                                        2,182        
<INVENTORY>                                             0        
<CURRENT-ASSETS>                                   56,730        
<PP&E>                                             33,014        
<DEPRECIATION>                                     14,586        
<TOTAL-ASSETS>                                    128,120        
<CURRENT-LIABILITIES>                              33,694        
<BONDS>                                                 0        
                                   0        
                                             0        
<COMMON>                                           63,647        
<OTHER-SE>                                         30,779        
<TOTAL-LIABILITY-AND-EQUITY>                      128,120        
<SALES>                                            74,633        
<TOTAL-REVENUES>                                  120,469        
<CGS>                                              14,527        
<TOTAL-COSTS>                                      39,373        
<OTHER-EXPENSES>                                   75,803        
<LOSS-PROVISION>                                        0        
<INTEREST-EXPENSE>                                      0        
<INCOME-PRETAX>                                     9,201        
<INCOME-TAX>                                        3,128        
<INCOME-CONTINUING>                                 6,073        
<DISCONTINUED>                                          0         
<EXTRAORDINARY>                                         0        
<CHANGES>                                               0        
<NET-INCOME>                                        6,073        
<EPS-PRIMARY>                                        0.26        
<EPS-DILUTED>                                        0.25        
                                                                 

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM THE FY96 FORM 10-K FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
                                              
</LEGEND>
<MULTIPLIER>                                          1,000
       
<S>                             <C>
<PERIOD-TYPE>                           12-MOS                   
<FISCAL-YEAR-END>                   FEB-28-1996                   
<PERIOD-START>                      MAR-01-1995                   
<PERIOD-END>                        FEB-28-1996                   
<CASH>                                                 21,822     
<SECURITIES>                                           12,231     
<RECEIVABLES>                                          20,674     
<ALLOWANCES>                                              852     
<INVENTORY>                                                 0     
<CURRENT-ASSETS>                                       57,835     
<PP&E>                                                 14,181     
<DEPRECIATION>                                          8,588     
<TOTAL-ASSETS>                                         85,264     
<CURRENT-LIABILITIES>                                  26,404     
<BONDS>                                                     0     
                                       0     
                                                 0     
<COMMON>                                               40,283     
<OTHER-SE>                                             17,993     
<TOTAL-LIABILITY-AND-EQUITY>                           85,264     
<SALES>                                                51,597     
<TOTAL-REVENUES>                                       84,442     
<CGS>                                                   9,046     
<TOTAL-COSTS>                                          24,870     
<OTHER-EXPENSES>                                       53,108     
<LOSS-PROVISION>                                            0     
<INTEREST-EXPENSE>                                          0     
<INCOME-PRETAX>                                         8,795     
<INCOME-TAX>                                            3,512     
<INCOME-CONTINUING>                                     5,283     
<DISCONTINUED>                                              0     
<EXTRAORDINARY>                                             0     
<CHANGES>                                                   0     
<NET-INCOME>                                            5,283     
<EPS-PRIMARY>                                            0.25     
<EPS-DILUTED>                                            0.24     
                                                                 
                                

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q1 FY97 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
                                           
</LEGEND>
<MULTIPLIER>                                           1,000
       
<S>                             <C>
<PERIOD-TYPE>                       3-MOS                      
<FISCAL-YEAR-END>                 FEB-28-1997                  
<PERIOD-START>                    MAR-01-1996                  
<PERIOD-END>                      MAY-31-1996                  
<CASH>                                                 17,043  
<SECURITIES>                                           11,180  
<RECEIVABLES>                                          19,894  
<ALLOWANCES>                                                0  
<INVENTORY>                                                 0  
<CURRENT-ASSETS>                                       52,576  
<PP&E>                                                 18,101  
<DEPRECIATION>                                              0  
<TOTAL-ASSETS>                                        101,269  
<CURRENT-LIABILITIES>                                  22,526  
<BONDS>                                                     0  
                                       0  
                                                 0  
<COMMON>                                               58,165  
<OTHER-SE>                                             20,086  
<TOTAL-LIABILITY-AND-EQUITY>                          101,269  
<SALES>                                                13,718  
<TOTAL-REVENUES>                                       23,151  
<CGS>                                                   2,011  
<TOTAL-COSTS>                                           6,185  
<OTHER-EXPENSES>                                       14,647  
<LOSS-PROVISION>                                            0  
<INTEREST-EXPENSE>                                          0  
<INCOME-PRETAX>                                         3,713  
<INCOME-TAX>                                            1,262  
<INCOME-CONTINUING>                                     2,451  
<DISCONTINUED>                                              0  
<EXTRAORDINARY>                                             0  
<CHANGES>                                                   0  
<NET-INCOME>                                            2,451  
<EPS-PRIMARY>                                            0.11  
<EPS-DILUTED>                                            0.11  
                                


</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q2 FY97 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                          1,000
       
<S>                             <C>
<PERIOD-TYPE>                      6-MOS                        
<FISCAL-YEAR-END>               FEB-28-1997                     
<PERIOD-START>                  MAR-01-1996                     
<PERIOD-END>                    AUG-31-1996                     
<CASH>                                                11,198    
<SECURITIES>                                           9,915    
<RECEIVABLES>                                         21,386    
<ALLOWANCES>                                               0    
<INVENTORY>                                                0    
<CURRENT-ASSETS>                                      46,250    
<PP&E>                                                18,996    
<DEPRECIATION>                                             0    
<TOTAL-ASSETS>                                       102,874    
<CURRENT-LIABILITIES>                                 20,669    
<BONDS>                                                    0    
                                      0    
                                                0    
<COMMON>                                              58,583    
<OTHER-SE>                                            23,495    
<TOTAL-LIABILITY-AND-EQUITY>                         102,874    
<SALES>                                               30,825    
<TOTAL-REVENUES>                                      49,256    
<CGS>                                                  4,097    
<TOTAL-COSTS>                                         12,163    
<OTHER-EXPENSES>                                      31,865    
<LOSS-PROVISION>                                           0    
<INTEREST-EXPENSE>                                         0    
<INCOME-PRETAX>                                        7,420    
<INCOME-TAX>                                           2,597    
<INCOME-CONTINUING>                                    4,823    
<DISCONTINUED>                                             0    
<EXTRAORDINARY>                                            0    
<CHANGES>                                                  0    
<NET-INCOME>                                           4,823    
<EPS-PRIMARY>                                           0.22    
<EPS-DILUTED>                                           0.21    
                                                                
                                

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q3 FY97 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>                               
<MULTIPLIER>                                    1,000
       
<S>                             <C>
<PERIOD-TYPE>                      9-MOS                
<FISCAL-YEAR-END>                FEB-28-1997            
<PERIOD-START>                   MAR-01-1996            
<PERIOD-END>                     NOV-30-1996            
<CASH>                                          11,321  
<SECURITIES>                                     7,085  
<RECEIVABLES>                                   26,815  
<ALLOWANCES>                                         0  
<INVENTORY>                                          0  
<CURRENT-ASSETS>                                49,347  
<PP&E>                                          19,139  
<DEPRECIATION>                                       0  
<TOTAL-ASSETS>                                 108,071  
<CURRENT-LIABILITIES>                           24,598  
<BONDS>                                              0  
                                0  
                                          0  
<COMMON>                                        59,590  
<OTHER-SE>                                      23,629  
<TOTAL-LIABILITY-AND-EQUITY>                   108,071  
<SALES>                                         49,340  
<TOTAL-REVENUES>                                76,059  
<CGS>                                            6,778  
<TOTAL-COSTS>                                   19,067  
<OTHER-EXPENSES>                                52,917  
<LOSS-PROVISION>                                     0  
<INTEREST-EXPENSE>                                   0  
<INCOME-PRETAX>                                  7,275  
<INCOME-TAX>                                     2,546  
<INCOME-CONTINUING>                              4,729  
<DISCONTINUED>                                       0  
<EXTRAORDINARY>                                      0  
<CHANGES>                                            0  
<NET-INCOME>                                     4,729  
<EPS-PRIMARY>                                     0.21  
<EPS-DILUTED>                                     0.20  
                                                        
                                

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM THE FY97 FORM 10-K FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>                                    
<MULTIPLIER>                                         1,000
       
<S>                             <C>
<PERIOD-TYPE>                      12-MOS                     
<FISCAL-YEAR-END>                FEB-28-1997                  
<PERIOD-START>                   MAR-01-1996                  
<PERIOD-END>                     FEB-28-1997                  
<CASH>                                                25,585  
<SECURITIES>                                           4,483  
<RECEIVABLES>                                         29,806  
<ALLOWANCES>                                           1,540  
<INVENTORY>                                                0  
<CURRENT-ASSETS>                                      65,439  
<PP&E>                                                29,073  
<DEPRECIATION>                                        11,117  
<TOTAL-ASSETS>                                       112,502  
<CURRENT-LIABILITIES>                                 26,127  
<BONDS>                                                    0  
                                      0  
                                                0  
<COMMON>                                              61,158  
<OTHER-SE>                                            25,014  
<TOTAL-LIABILITY-AND-EQUITY>                         112,502  
<SALES>                                               69,282  
<TOTAL-REVENUES>                                     105,463  
<CGS>                                                  9,755  
<TOTAL-COSTS>                                         26,147  
<OTHER-EXPENSES>                                      72,377  
<LOSS-PROVISION>                                           0  
<INTEREST-EXPENSE>                                         0  
<INCOME-PRETAX>                                       11,159  
<INCOME-TAX>                                           3,905  
<INCOME-CONTINUING>                                    7,254  
<DISCONTINUED>                                             0  
<EXTRAORDINARY>                                            0  
<CHANGES>                                                  0  
<NET-INCOME>                                           7,254  
<EPS-PRIMARY>                                           0.32  
<EPS-DILUTED>                                           0.31  
                                                              
                                

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q1 FY98 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>                                    
<MULTIPLIER>                                          1,000
       
<S>                             <C>
<PERIOD-TYPE>                        3-MOS                    
<FISCAL-YEAR-END>               FEB-28-1998                   
<PERIOD-START>                  MAR-01-1997                   
<PERIOD-END>                    MAY-31-1997                   
<CASH>                                                20,506  
<SECURITIES>                                           5,292  
<RECEIVABLES>                                         26,114  
<ALLOWANCES>                                               0  
<INVENTORY>                                                0  
<CURRENT-ASSETS>                                      59,834  
<PP&E>                                                18,325  
<DEPRECIATION>                                             0  
<TOTAL-ASSETS>                                       119,894  
<CURRENT-LIABILITIES>                                 32,352  
<BONDS>                                                    0  
                                      0  
                                                0  
<COMMON>                                              62,030  
<OTHER-SE>                                            25,431  
<TOTAL-LIABILITY-AND-EQUITY>                         119,894  
<SALES>                                               15,012  
<TOTAL-REVENUES>                                      24,588  
<CGS>                                                  2,873  
<TOTAL-COSTS>                                          7,729  
<OTHER-EXPENSES>                                      17,308  
<LOSS-PROVISION>                                           0  
<INTEREST-EXPENSE>                                         0  
<INCOME-PRETAX>                                          346  
<INCOME-TAX>                                             125  
<INCOME-CONTINUING>                                      221  
<DISCONTINUED>                                             0  
<EXTRAORDINARY>                                            0  
<CHANGES>                                                  0  
<NET-INCOME>                                             221  
<EPS-PRIMARY>                                           0.01  
<EPS-DILUTED>                                           0.01  
                                                              
                                                              

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q2 FY98 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>                                 
<MULTIPLIER>                                          1,000
       
<S>                             <C>
<PERIOD-TYPE>                      6-MOS                        
<FISCAL-YEAR-END>               FEB-28-1998                     
<PERIOD-START>                  MAR-01-1997                     
<PERIOD-END>                    AUG-31-1997                     
<CASH>                                                 20,868   
<SECURITIES>                                            4,813   
<RECEIVABLES>                                          26,843   
<ALLOWANCES>                                                0   
<INVENTORY>                                                 0   
<CURRENT-ASSETS>                                       58,451   
<PP&E>                                                 18,771   
<DEPRECIATION>                                              0   
<TOTAL-ASSETS>                                        118,932   
<CURRENT-LIABILITIES>                                  30,259   
<BONDS>                                                     0   
                                       0   
                                                 0   
<COMMON>                                               62,488   
<OTHER-SE>                                             25,936   
<TOTAL-LIABILITY-AND-EQUITY>                          118,932   
<SALES>                                                32,194   
<TOTAL-REVENUES>                                       56,758   
<CGS>                                                   6,385   
<TOTAL-COSTS>                                          20,202   
<OTHER-EXPENSES>                                       36,578   
<LOSS-PROVISION>                                            0   
<INTEREST-EXPENSE>                                          0   
<INCOME-PRETAX>                                         1,752   
<INCOME-TAX>                                              596   
<INCOME-CONTINUING>                                     1,156   
<DISCONTINUED>                                              0   
<EXTRAORDINARY>                                             0   
<CHANGES>                                                   0   
<NET-INCOME>                                            1,156   
<EPS-PRIMARY>                                            0.05   
<EPS-DILUTED>                                            0.05   
                                                                
                                

</TABLE>

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
               THE SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED
               FROM Q3 FY98 FORM 10-Q  FINANCIAL  STATEMENTS AND IS QUALIFIED IN
               ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>                                  
<MULTIPLIER>                                    1,000
       
<S>                             <C>
<PERIOD-TYPE>                         9-MOS               
<FISCAL-YEAR-END>                FEB-28-1998              
<PERIOD-START>                   MAR-01-1997              
<PERIOD-END>                     NOV-30-1997              
<CASH>                                          12,945    
<SECURITIES>                                     5,908    
<RECEIVABLES>                                   26,098    
<ALLOWANCES>                                         0    
<INVENTORY>                                          0    
<CURRENT-ASSETS>                                51,321    
<PP&E>                                          18,772    
<DEPRECIATION>                                       0    
<TOTAL-ASSETS>                                 119,995    
<CURRENT-LIABILITIES>                           28,945    
<BONDS>                                              0    
                                0    
                                          0    
<COMMON>                                        63,650    
<OTHER-SE>                                      27,393    
<TOTAL-LIABILITY-AND-EQUITY>                   119,995    
<SALES>                                         51,344    
<TOTAL-REVENUES>                                86,660    
<CGS>                                            9,567    
<TOTAL-COSTS>                                   29,237    
<OTHER-EXPENSES>                                56,093    
<LOSS-PROVISION>                                     0    
<INTEREST-EXPENSE>                                   0    
<INCOME-PRETAX>                                  4,194    
<INCOME-TAX>                                     1,426    
<INCOME-CONTINUING>                              2,768    
<DISCONTINUED>                                       0    
<EXTRAORDINARY>                                      0    
<CHANGES>                                            0    
<NET-INCOME>                                     2,768    
<EPS-PRIMARY>                                     0.12    
<EPS-DILUTED>                                     0.12    
                                                          
                                

</TABLE>


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