CSC WINS $628 MILLION U.S. AIR FORCE EXPEDITIONARY COMBAT SUPPORT SYSTEM TASK ORDER

News Release -- September 11, 2006

New Award adds $378 million to CSC's Quarterly Announced Wins

EL SEGUNDO, Calif., Sept. 11 - Computer Sciences Corporation (NYSE: CSC) announced today that it has won a task order to provide technical and business transformation services for the U.S. Air Force Expeditionary Combat Support System (ECSS). CSC estimates the value of the award, which has a 21-month base period with options for an additional 57 months, to be $628 million if all options are exercised.

The ECSS contract was awarded under the Enterprise Software Initiative blanket purchase agreement, which CSC originally announced in June 2004, with an estimated value of $250 million. The amount of the new contract adds $378 million to CSC’s quarterly announced wins.

Under the task order, CSC will be the prime systems integrator and provide a full range of services to help the Air Force transform its global supply chain. Services include logistics business process redesign and commercial off-the-shelf enterprise resource planning. CSC’s work will be coordinated with the ECSS Program Office in the 754th Electronic Systems Group and the Logistics Transformation Office at Wright Patterson Air Force Base in Ohio.

Once implemented, the ECSS will retire more than 400 legacy information systems in support of Air Force Expeditionary Logistics for the 21st Century (eLog21), the Air Force’s commitment to increase weapon system availability, reduce operating costs and improve warfighter capabilities.

“CSC is honored to have been selected for ECSS to provide the enabling technologies, best practices, process redesign and change management tools the Air Force needs to successfully transform its global supply chain,” said James W. Sheaffer, president of CSC’s Federal Sector business unit. “This award demonstrates the Air Force’s trust in our extensive business transformation experience and ability to deliver innovative solutions that produce measurable results.”

Teaming with CSC are Altarum Institute, of Ann Arbor, Mich.; BAE Systems IT and Defense Solutions Group, of Herndon, Va.; Booz Allen Hamilton Inc., of McLean, Va.; CACI International Inc., of Arlington, Va.; Capgemini Government Solutions LLC, of Herndon, Va.; Dynamics Research Corporation, of Andover, Md.; LOGTEC Inc., of Fairborn, Ohio; RWD Technologies, of Baltimore, Md.; Science Applications International Corporation, and Logistics and Information Technology Division, of San Diego, Calif.; Sirota Consulting LLC, of Purchase, N.Y.; Sogeti USA LLC, of Dayton, Ohio; Systems Research and Applications Corporation, of Fairfax, Va.; and 13 small businesses with proven performance in information technology (IT) integration and business process transformation.

About CSC

Founded in 1959, Computer Sciences Corporation is a leading global IT 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 78,000 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 $14.6 billion for the 12 months ended June 30, 2006. For more information, visit the company’s Web site at www.csc.com.