Concurrent Introduces Real-Time Linux Solution for Mission-Critical VME Applications.

RedHawk Linux Operating System and NightStar Debugging and Analysis Tools Now Available On Concurrent's New iHawk VME Platform

DULUTH, Ga. -- Concurrent Computer Corporation (NASDAQ: CCUR), a leading provider of integrated computer solutions and real-time Linux[R] operating systems, today announced iHawk[TM] VME, a commercial platform for mission-critical simulation, data acquisition, industrial and aerospace applications. iHawk VME systems feature energy-efficient Intel[R] Core[TM] multi-core technology on a single-slot 6U VME/VXS card.

At the heart of each iHawk solution is Concurrent's RedHawk Linux real-time operating system. Compatible with the popular Red Hat[R] Linux distribution, RedHawk features high I/O throughput, fast response to external events and optimized interprocess communication. RedHawk is the ideal Linux environment for complex real-time applications.

RedHawk Linux is based upon a multithreaded, fully preemptible Linux 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 time-critical solutions. A user-level application can be guaranteed to respond to an external event in less than 30 microseconds on a shielded processor.

"Customers of Concurrent iHawk PCI systems have leveraged the benefits of RedHawk Linux since 2001. With iHawk VME, RedHawk Linux is now available for VME/VXS form factor solutions," said Gary Beerman, Director of Marketing, Concurrent. "iHawk VME also provides an attractive Linux migration path for Concurrent's Power Hawk UNIX-based VME systems."

iHawk VME systems are ideal for real-time application environments that require ruggedized or special packaging. iHawk VME allows an easy upgrade path to RedHawk Linux while maintaining a user's VME I/O investment. A wide range of VME card options are available such as analog and digital I/O, MIL-STD-1553, ARINC 429, IEEE-488, reflective memory and asynchronous I/O. iHawk VME systems offer comprehensive integrated I/O including SATA, SCSI, EIDE, Flash memory, on-board disks, graphics, gigabit Ethernet, USB, RS-232 and GPIO.

iHawk VME systems also support Concurrent's powerful NightStar[TM] development tool set. Users can debug, analyze, monitor and tune their real-time applications on iHawk systems locally or remotely at application speed. Each tool runs non-intrusively, thus preserving the deterministic behavior of the application. NightStar tools allow developers to graphically view how their applications interact with the Linux kernel.

iHawk VME hardware options include Concurrent's Real-time Clock & Interrupt Module (RCIM), a multifunction I/O card designed for time-critical applications that require rapid response to external events. The RCIM includes a synchronized clock readable by multiple systems, up to 8 programmable timers and up to 12 input and 12 output external interrupt lines. An optional on-board GPS module is available to align the RCIM's synchronized clock to GPS standard time.

Concurrent's Special Systems group is available to design and deliver customized iHawk VME systems for the most demanding real-time applications. Concurrent engineers can provide special packaging including ruggedized peripherals and enclosures, integrate third-party I/O cards, develop and integrate RedHawk Linux drivers, and perform application rehosting. Hardware and software are designed and developed to exact customer specifications.

About Concurrent

Concurrent (NASDAQ: CCUR) is a leading provider of high-performance, real-time Linux software and solutions for commercial and government markets. For 40 years Concurrent's best-of-breed products have enabled a range of time-critical solutions including: modeling and simulation, high speed data acquisition, visual imaging, low latency transaction processing and on-demand television. Concurrent's on-demand television applications are utilized by major service providers in the cable and IPTV industries to deliver video-on-demand (VOD) and, through subsidiary company Everstream, measure the effectiveness of interactive television. Concurrent is a global company with regional offices in North America, Europe, Asia and Australia, and has products actively deployed in more than 24 countries. Concurrent's products and services are recognized for being uniquely flexible, comprehensive, robust and reliable. 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. 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 products, release schedules, and product development. 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 meet release schedules, customer demands, accomplish development goals, integrate our products, and deploy integrated solutions.

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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