Concurrent Announces RedHawk Real-Time Linux Operating System For The AMD 64-Bit Opteron Processor.

Business Editors/High-Tech Writers

LinuxWorld New York 2004

ATLANTA--(BUSINESS WIRE)--Jan. 21, 2004

Release 2.0 Of RedHawk(TM) Linux For AMD Opteron Delivered In

December, 2003

Concurrent Computer Corporation (NASDAQ: CCUR), Integrated Solutions Division, today announced the delivery of version 2.0 of its RedHawk(TM) Linux real-time operating system, designed specifically for the AMD (NASDAQ: AMD) Opteron 64-bit processor. Concurrent's RedHawk 2.0 is the first real-time Linux operating system for the Opteron processor platform to be offered by a leading real-time solutions provider. Based on the 2.6.0 Linux kernel, RedHawk 2.0 is fully compatible with the popular Red Hat(TM) Inc. Enterprise Linux distribution. The new RedHawk release is currently in use by a prominent international Concurrent customer in the development of next-generation, 64-bit real-time applications.

RedHawk 2.0 leverages the superior floating point performance, 64-bit addressing and improved I/O throughput of the Opteron processor in support of high-performance data acquisition, simulation, process control and other demanding applications. On Opteron systems, users can run existing off-the-shelf 32-bit applications, recompile their 32-bit RedHawk applications into 64-bit mode for improved performance and extended addressing, as well as develop new 64-bit applications on the same platform.

RedHawk Linux on Concurrent's 32 bit Intel(R) Xeon(TM) powered iHawk(TM) systems has already proven itself in mission-critical programs throughout the world including the Eurofighter training device, FA-18 and EA-6B simulation systems and the Theater High Altitude Area Defense (THAAD) missile program. RedHawk is also used in telecommunications testing, U.S. and European automotive simulation systems and industrial control applications.

"Concurrent's support for the Opteron platform allows us to address new markets, such as medical imaging, video encoding/decoding, and the financial industry that require larger memory addressing and increased processing power," said Gary Beerman, director of marketing, Concurrent Integrated Solutions Division. RedHawk 2.0 is available on iHawk COTS systems allowing our customers the choice of 32-bit or 64-bit platforms that are best suited to their high-performance, real-time needs.

About Concurrent

Since 1966, Concurrent Computer Corporation (www.ccur.com) headquartered in Atlanta, Georgia, has been a 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's XSTREME (VOD) Division is a recognized leader in the digital cable market, serving nine major cable operators in 67 markets with over 4.5 million digital subscribers. Concurrent's proven technology provides a flexible, comprehensive, robust solution for HFC, DSL, and IP-based networks. 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, RedHawk and iHawk are registered and unregistered trademarks of Concurrent Computer Corporation. All other product names are trademarks or registered trademarks of their respective owners.