EL SEGUNDO, Calif., Oct. 25 -- Computer Sciences Corporation (NYSE: CSC) announced today that it has won a contract to provide range support services to the U.S. Naval Air Warfare Center (NAVAIR), Aircraft Division, located in Patuxent River, Md. CSC estimates the value of the contract, which has a one-year base period, two one-year options and two one-year performance-based award terms, to be approximately $430 million if all options are exercised. This award follows and is incremental to a contract signed in December 2001. The value of this task order was included under the joint U.S. Navy SeaPort-Enhanced contract, which CSC originally announced on April 13, 2004.

Under the terms of the contract, CSC will provide technical support services for the NAVAIR’s Atlantic Test Range, Air Vehicle Modification and Instrumentation, and Atlantic Targets and Marine Operations divisions. Services include program management; logistics; training and simulation; engineering and instrumentation; data collection and management; aviation modifications; laboratory and field testing; special programs support; data reduction and analysis; and administrative support. CSC provides on-site management, technical and administrative personnel to conduct analytical studies, engineering and software programming for hardware.

“Since 1978, NAVAIR has counted on CSC to provide support for its integrated warfare systems,” said James W. Sheaffer, president of CSC’s North American Public Sector business unit. “By leveraging our expertise and experience gained from other domestic and international range engagements, CSC will continue to deliver sound operational results for our Navy clients.”

About CSC

Computer Sciences Corporation is a leading global information technology (IT) services company. CSC’s mission is to provide customers in industry and government with solutions crafted to meet their specific challenges and enable them to profit from the advanced use of technology.

With approximately 79,000 employees, CSC provides innovative solutions for customers around the world by applying leading technologies and CSC’s own advanced capabilities. These include systems design and integration; IT and business process outsourcing; applications software development; Web and application hosting; and management consulting. Headquartered in El Segundo, Calif., CSC reported revenue of $14.9 billion for the 12 months ended March 30, 2007. For more information, visit the company’s Web site at www.csc.com.