Concurrent and Opal-RT Technologies Announce Exclusive Strategic Alliance for RT-LAB Simulation Software On Linux.

Business Editors

ATLANTA--(BUSINESS WIRE)--June 10, 2003

Co-Development Agreement Provides Concurrent with Exclusive Rights

to Linux Port of Opal-RT's Popular RT-LAB(TM)

Concurrent Computer Corporation (NASDAQ: CCUR), Real-Time Division, today announced a strategic partnership agreement with Opal-RT Technologies, a leader in distributed simulation on PC-based platforms. The agreement encompasses Opal-RT's development of a new Linux version of its widely acclaimed RT-LAB software for Concurrent's iHawk(TM) Series 860 family of systems powered by RedHawk(TM) Linux(R), as well as provisions for Concurrent to be the sole reseller of the RT-LAB Linux offering outside of Canada. The new product will be promoted under the RT-LAB RLX brand.

Under the terms of the agreement, RT-LAB RLX will include base functionality equivalent to Opal-RT's RT-LAB product family with an extended I/O driver feature set. Compatibility with leading simulation development toolsuites including The MathWorks' Matlab(R)/Simulink(R) and National Instruments' MATRIXx(TM) will be inherent in the offering. Opal-RT and Concurrent will cooperatively develop the product to ensure product features respond to a wide range of real-time simulation requirements. Further terms of the agreement include provisions for cooperative marketing, customer support and training. General availability of RT-LAB RLX is scheduled for December 2003. Opal-RT will retain the right to sell RT-LAB RLX in Canada, and will also become an iHawk reseller for Canada.

The iHawk Series 860 is Concurrent's high performance, multiprocessor, PCI-based computer platform based on the Intel(R) Xeon(TM) CPU. The heart of the iHawk is Concurrent's RedHawk Linux operating system, compatible with the popular Red Hat Linux distribution and enhanced by Concurrent's real-time Linux kernel.

The iHawk continues to prove its prowess in the simulation industry with a growing customer program base, which includes the Eurofighter ITD, the F-18, the EA-6B, the JAS-39 Grippen, the Tiger attack helicopter and THAAD missile program.

Opal-RT's RT-LAB simulation software is a widely adopted real-time distributed platform leveraged by engineers who use mathematical block diagrams for simulation, control and related applications. Built using commercial-off-the-shelf (COTS) technologies, RT-LAB offers a scalable, high-performance, real-time environment for the most demanding of hard-real-time simulations from complex dynamic models developed in Simulink and MATRIXx software. RT-LAB also enables the incorporation of specialized plant modeling tools for engineering components, such as internal combustion engines, hydraulic systems, car dynamics and flexible multi-body mechanical systems, as well as electrical and power electronic systems.

According to Paul Meyer, president of Concurrent's Real-Time Division, "The synergies of this partnership, as well as the customer benefit byproducts, are plentiful. The COTS and real-time attributes of both iHawk and RT-LAB will truly deliver a best-of-breed solution for simulation engineers desiring off-the-shelf components with uncompromising speed, scalability and determinism. We expect this partnership will position us for growth in the $200 million automotive hardware-in-the-loop simulation sector and allow us to offer a more complete solution set to our aerospace customers."

According to Jean Belanger, president, Opal-RT Technologies, Inc., "The combination of our distributed real-time technologies and the Concurrent platform will allow engineers and scientists to extend their simulation capabilities into areas only currently imagined. Research laboratory managers will also appreciate the totally integrated and high-performance solution this partnership offers - at the right price and at minimal risk."

About Concurrent

Celebrating over 37 successful years in business, Concurrent Computer Corporation (www.ccur.com), headquartered in Atlanta, Georgia, is a premier provider of high-performance, real-time computer systems, solutions and software for commercial and government markets. The company's Real-Time Division focuses on strategic market areas that include hardware-in-the-loop and man-in-the-loop simulation, data acquisition, industrial systems, and software. Concurrent Computer Corporation's XSTREME Division is a leading supplier in the digital video server marketplace. This market includes the broadband/cable, corporate training, education, hospitality and video to the home. Concurrent provides sales and support from offices throughout North America, Europe, Asia, and Australia.

About Opal-RT Technologies

Opal-RT Technologies (www.opal-rt.com), headquartered in Montreal, Quebec, Canada, is a leading provider of COTS/INTEL based high-performance real-time distributed software and systems used for hardware-in-the-loop plant simulation and electronic control unit testing. Opal-RT flagship software, RT-LAB, is used by leading automotive manufacturers, including General Motors, Delphi-Delco Electronics, Toyota Group and DENSO as well as space agencies, research centers and universities around the world. Opal-RT also produces custom test equipment, develops specialized simulation tools for electrical, power electronics and aerospace real-time applications and provides modeling and simulation services.

Certain statements made or incorporated by reference in this release may constitute "forward-looking statements" within the meaning of the federal securities laws. When used or incorporated by reference in this release, the words "believes," "expects," "estimates," and similar expressions are intended to identify forward-looking statements. Statements regarding future events and developments and our future performance, as well as our expectations, beliefs, plans, estimates, or projections relating to the future, are forward-looking statements within the meaning of these laws. All forward-looking statements are subject to certain risks and uncertainties that could cause actual events to differ materially from those projected. The risks and uncertainties which could affect our financial condition or results of operations include, without limitation: availability of video-on-demand content; delays or cancellations of customer orders; changes in product demand; economic conditions; various inventory risks due to changes in market conditions; uncertainties relating to the development and ownership of intellectual property; uncertainties relating to our ability and the ability of other companies to enforce their intellectual property rights; the pricing and availability of equipment, materials and inventories; the limited operating history of our video-on-demand segment; the concentration of our customers; failure to effectively manage growth; delays in testing and introductions of new products; rapid technology changes; demand shifts from high-priced, proprietary real-time systems to low-priced, open server systems; system errors or failures; reliance on a limited number of suppliers; uncertainties associated with international business activities, including foreign regulations, trade controls, taxes, and currency fluctuations; the highly competitive environment in which we operate; failure to effectively service the installed base; the entry of new well-capitalized competitors into our markets; and the valuation of equity investments and collectibility of notes receivable, including but not limited to our equity and debt investment in Thirdspace.

Other important risk factors are discussed in our Form 10-K filed with the Securities and Exchange Commission on September 25, 2002 and may be discussed in subsequent filings with the SEC. The risk factors discussed in such Form 10-K under the heading "Risk Factors" are specifically incorporated by reference in this press release. Our forward-looking statements are based on current expectations and speak only as of the date of such statements. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of future events, new information, or otherwise.

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Concurrent Computer Corporation, iHawk, RedHawk and its logo are registered and unregistered trademarks of Concurrent Computer Corporation. All other product names are trademarks or registered trademarks of their respective owners.