Concurrent to Enter New Markets Through Online Sales of Software Products for Linux(R) Applications; Company to Provide Powerful, Stand-Alone Application Development.

DULUTH, Ga. -- Concurrent (NASDAQ: CCUR), a leading provider of technology solutions for mission-critical applications, is entering a new line of business by offering stand-alone software for Linux application developers.

A shift is occurring in emerging markets as the number of customers demanding technology solutions based on open source and open standards continues to accelerate. According to an IDC study, industry sales of Linux servers surpassed the $1 billion mark in revenue for the fourth consecutive quarter, while in the second quarter of 2005 worldwide Linux sales grew 45 percent.

Until now, Concurrent's NightStar(TM) development tool suite has only been available on the RedHawk(TM) operating system. With the introduction of NightStar LX(TM), the full development suite of tools is being made available through online sales for Red Hat(R) Linux. The NightStar Toolset, which is already deployed by some of the largest automotive, aerospace and defense companies globally, will now become available for anyone developing time-critical applications.

"The need for software tools to debug, optimize and fine-tune applications crosses many market segments," said Warren Neuburger, COO of Concurrent. "We are broadening our operating plan to provide market access to our highly-prized software solutions on industry-standard Linux distributions. NightStar tools have demonstrated high value to software developers worldwide as an efficient tool set for applications development, particularly for those requiring multiprocessor or multithreaded performance," he added.

"In the embedded software market, Linux continues to gain momentum as an embedded operating system for development projects," said Stephen Balacco, Embedded Software Analyst at VDC. "Today Linux is the fastest growing segment in computer operating systems, growing more than 22 percent a year. The need for software tools to customize and adapt is critical. Concurrent is entering a marketplace ripe for tool kits and continued growth."

The NightStar LX tools were based upon Concurrent's vast experience in real-time operating systems like its RedHawk Linux. RedHawk Linux has gained acceptance as a leading real-time Linux operating system for high-performance applications by customers throughout the world because it guarantees that a user application can respond to an external event in less than 30 microseconds on a dedicated processor.

Since its founding in 1966, Concurrent has evolved from an early manufacturer of computers with proprietary operating systems into a worldwide technology provider utilizing commercial hardware and its open source RedHawk Linux operating system. Concurrent is once again evolving to achieve greater market reach through both software acquisitions--initiated by the announcement to purchase Everstream earlier this month--and by growth of in-house developed software products. Concurrent expects to continue to make additional software product lines available to broader markets through expanding and evolving its channel partner program.

About Concurrent

Concurrent (NASDAQ: CCUR) is a premiere provider of high-performance, real-time computer systems, solutions, and software for commercial and government markets. For more than 40 years Concurrent's mission-critical solutions and best of breed solutions focus on hardware-in-the-loop and man-in-the-loop simulation, data acquisition and process control for commercial and government markets are unequaled. Concurrent is also a global leader in digital on-demand systems for the cable TV industry, deployed in more than 24 countries. Their products and services are recognized for uniquely flexible, comprehensive, robust solutions. Concurrent has offices in North America, Europe, Asia, and Australia. For more information, please visit www.ccur.com.

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 development 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. These forward looking statements include, among others, statements regarding our proposed acquisition of Everstream (the acquisition), the prospects for Everstream following the acquisition, the impact of the acquisition on our future results of operations and cash on hand. All forward-looking statements are subject to certain risks and uncertainties that could cause actual events to differ materially from those projected. Such risks and uncertainties include our ability to complete the acquisition, integrate the acquisition and realize expected synergies. In addition, the risks and uncertainties which could affect our financial condition or results of operations include, without limitation: our ability to keep our customers satisfied; 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 concentration of our customers; failure to effectively manage change; delays in testing and introductions of new products; rapid technology changes; 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 and predatory pricing pressures; failure to effectively service the installed base; the entry of new well-capitalized competitors into our markets; the success of new on-demand and real-time products; the availability of Linux software in light of issues raised by SCO Group; capital spending patterns by a limited customer base; and obligations that could impact revenue recognition.

Other important risk factors are discussed in our Form 10-K filed with the Securities and Exchange Commission on Sept. 2, 2005 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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