News Release-- April 21, 2003

CSC WINS $42 MILLION TASK TO SUPPORT MISSILE DEFENSE AGENCY

EL SEGUNDO, Calif., April 21, 2003 -- Computer Sciences Corporation (NYSE: CSC) announced today it has won a task order to provide program assessment, planning and reporting support to the Missile Defense Agency’s (MDA) Program Integration Directorate. The four-year agreement, valued at more than $42 million if all options are exercised, was awarded through the MDA’s Basic Support Services Program blanket purchasing agreement established in April 2001.

The MDA’s mission is to develop, test and evaluate production, deployment and operational alternatives for the Ballistic Missile Defense System. CSC, which has supported the MDA since 1988, is the agency’s key provider of systems engineering and technical services. Under the new task order, CSC will provide cost, scheduling and allocation support; program assessment and reporting; and support of the MDA’s planning, programming and budgeting system.

“CSC is pleased to continue its support of the MDA, an agency that plays a vital role in U.S. national defense,” said Aaron Fuller, vice president and general manager for CSC’s Navy, Marine Corps and Missile Defense programs.

Founded in 1959, Computer Sciences Corporation is one of the world's leading information technology (IT) services companies. 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 90,000 employees, including more than 26,000 from the company's March 7, 2003, acquisition of DynCorp, 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 $11.3 billion for the 12 months ended Dec. 27, 2002. For more information, visit the company's Web site at www.csc.com.