News Release-- September 04, 2007

CSC WINS $43 MILLION U.S. NAVY IT SERVICES CONTRACT TO SUPPORT SPAWAR

EL SEGUNDO, Calif., Sept. 4 -- Computer Sciences Corporation (NYSE: CSC) announced today that it has won an information technology (IT) services contract to provide systems engineering and management and administration support to the U.S. Navy Space and Naval Warfare System Center (SPAWAR) Charleston in Pensacola, Fla. CSC estimates the value of the contract, which has a one-year base period and four one-year options, to be $43 million if all options are exercised.

Under the terms of the agreement, CSC will configure, install, administer and support data system connectivity and ensure systems availability for SPAWAR’s Information Systems Division. Additionally, CSC will integrate application, database and network support servers in both unclassified and classified environments.

“Enhancing communications and information capabilities for our warfighters is paramount, and CSC is honored to have been selected by the Navy to ensure the systems our troops depend on are reliable and the best,” said Austin Yerks, president of CSC’s North American Public Sector Defense Division. “CSC has a distinguished legacy of working with the U.S. Navy, and we are honored to continue our service.”

The mission of SPAWAR’s Information Systems Division is to provide full service telecommunication management and information systems support to the Department of Defense, the Department of the Navy and other government agencies.

About CSC

Computer Sciences Corporation is a leading global 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 87,000 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.