Concurrent Computer Corporation iHawk Systems Chosen By Eurocopter, an EADS company, For Training Simulators.

Business Editors

I/ITSEC Booth #511

ATLANTA--(BUSINESS WIRE)--Dec. 2, 2003

The RedHawk Linux(R) Operating System Is Key to Providing

Precise Scheduling of Trainer Real-Time Tasks

Concurrent Computer Corporation (NASDAQ: CCUR), Integrated Systems Division, today announced that dual-CPU iHawk multiprocessor systems running RedHawk(TM) Linux(R) have been installed at Eurocopter's Marignane plant in France. These iHawks will be used in helicopter trainer projects. Eurocopter has selected Concurrent's iHawk in its reference platforms shortlist for its contribution to this next generation of trainers.

Eurocopter selected iHawk because RedHawk(TM) Linux(R) provided the real-time features needed by its training systems. "We wanted a Linux operating system that could guarantee the determinism of our applications," said Eurocopter's Nicolas Damiani, Project Manager. "RedHawk's processor shielding supported by the iHawk's Real-time Clock & Interrupt Module allows us to ensure exact scheduling of real-time tasks even in the presence of heavy network and graphics I/O. The iHawk platform running RedHawk along with Concurrent life-cycle support meets all of our host computer needs."

The iHawk is Concurrent's high-performance PCI-based computer platform for real-time data acquisition, simulation and industrial systems applications. The iHawk features up to eight Intel(R) Pentium(R) Xeon(TM) processors in single rackmount or tower enclosures. iHawks are true symmetric multiprocessors that run a single copy of Concurrent's RedHawk Linux real-time operating system. All CPUs in a system are linked by a high-speed front-side processor bus and have direct, cache-coherent access to all of main memory.

RedHawk Linux is an industry-standard, real-time version of the open source Linux operating system. RedHawk, which includes the popular Red Hat(R) Linux distribution, provides high I/O throughput, guaranteed fast response to external events, and optimized interprocess communication. RedHawk is the ideal Linux environment for simulation and training applications. RedHawk user-level commands, utilities and system administration functions are standard Red Hat. RedHawk achieves real-time performance by replacing the Red Hat kernel with a multithreaded, deterministic, fully-preemptable kernel with low-latency enhancements. RedHawk's true symmetric multiprocessing support includes load-balancing and CPU shielding to maximize determinism and real-time performance in mission-critical solutions.

The iHawk's Real-Time Clock & Interrupt Module (RCIM) is a multifunction PCI card designed for time-critical applications that require rapid response to external events. The RCIM includes a synchronized clock, multiple real-time clocks, and input and output external interrupt lines. The RCIM provides fully deterministic event synchronization in single or multiple system applications. The synchronized clock on multiple systems can be initialized by a designated master to ensure that all processes running on all CPUs can operate using a common time base. The RCIM is very useful in single system applications where multiple external interrupts and clock support are needed.

According to Rob Menzel, Concurrent Vice President of Worldwide Sales and Marketing, Integrated Solutions Division, "The iHawk continues to be the platform of choice for simulation in Europe. Companies such as Eurocopter, Airbus, ESG, HiQ in Sweden and CEV in France are realizing the advantages of Concurrent's iHawk. Our RedHawk Linux, accompanied by our NightStar development tools, are recognized as the premier real-time Linux environment available today."

About Concurrent

Celebrating over 37 successful years in business, Concurrent Computer Corporation (www.ccur.com), headquartered in Atlanta, Georgia, is the premier provider of high-performance, real-time computer systems, solutions and software for commercial and government markets. The company's Integrated Solutions 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.

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," "anticipates," 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.

Other important risk factors are discussed in our Form 10-K filed with the Securities and Exchange Commission on September 18, 2003 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.

Note to Editors: For additional company or product information from Concurrent Computer Corporation, please contact Concurrent Computer Corporation, 4375 River Green Parkway, Suite 100, Duluth, GA 30096. Call toll free in the U.S. and Canada at [phone], fax [phone]. Readers can also access information through the company's Web site at www.ccur.com.

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