Mercury Computer Systems to Report Fourth Quarter Fiscal 2009 Earnings and Host Conference...

Mercury Computer Systems to Report Fourth Quarter Fiscal 2009 Earnings and
Host Conference Call on August 4, 2009

CHELMSFORD, Mass., July 7 /PRNewswire-FirstCall/ -- Mercury Computer Systems,
Inc. (NASDAQ: MRCY), a leading provider of embedded, high-performance
computing systems and software for image, sensor, and signal processing
applications, will announce the financial results for its fourth quarter of
fiscal 2009 on Tuesday, August 4, 2009, at 4:00 p.m. EDT.

Management will host a conference call at 5:00 p.m. EDT to discuss Mercury's
quarterly financial results, business highlights, and outlook. In addition,
Company representatives may answer questions concerning business and financial
developments and trends, the Company's view on earnings forecasts, and other
business and financial matters affecting the Company, the responses to which
may contain information that has not been previously disclosed.

To listen to the conference call, dial (888) 228-5287 in the USA and Canada,
and (913) 312-1405 for all other countries. The conference code number is
8927384. Please call five to ten minutes prior to the scheduled start time.
This call will also be broadcast live over the web at www.mc.com/investor
under Financial Events.

A replay of the call by telephone will be available from approximately 8:00
p.m. EDT on Tuesday, August 4 through 8:00 p.m. EDT on Friday, August 14. To
access the replay, dial (888) 203-1112 in the USA and Canada, and (719)
457-0820 for all other countries. Enter access code 8927384. A replay of the
webcast of the call will be available for an extended period of time on the
Financial Events page of the Company's website at www.mc.com/investor.

Mercury Computer Systems, Inc. - Where Challenges Drive Innovation(TM)

Mercury Computer Systems (www.mc.com, NASDAQ: MRCY) provides embedded
computing systems and software that combine image, signal, and sensor
processing with information management for data-intensive applications. With
deep expertise in optimizing algorithms and software and in leveraging
industry-standard technologies, we work closely with customers to architect
comprehensive, purpose-built solutions that capture, process, and present data
for defense electronics, homeland security, and other computationally
challenging commercial markets. Our dedication to performance excellence and
collaborative innovation continues a 25-year history in enabling customers to
gain the competitive advantage they need to stay at the forefront of the
markets they serve.

Mercury is based in Chelmsford, Massachusetts, and serves customers worldwide
through a broad network of direct sales offices, subsidiaries, and
distributors.

Contact:
Robert Hult, CFO, Mercury Computer Systems, Inc.
978-967-1990

Challenges Drive Innovation is a trademark of Mercury Computer Systems, Inc.
Other product and company names mentioned may be trademarks and/or registered
trademarks of their respective holders.

SOURCE Mercury Computer Systems, Inc.

Robert Hult, CFO of Mercury Computer Systems, Inc., +1-978-967-1990