News Release-- September 16, 2004

CSC WINS $10.4 MILLION ROYAL AUSTRALIAN NAVY IT INFRASTRUCTURE CONTRACT

EL SEGUNDO, Calif., Sept. 16 - Computer Sciences Corporation (NYSE: CSC) today announced that it has won a contract to design and install a shipboard and shore-based information technology (IT) infrastructure for the Royal Australian Navy (RAN). The four-year contract is valued at $10.4 million (AUD $15 million) if all options are exercised.

Under the agreement, CSC will provide technical, analytical, engineering, program management and administrative support for 17 RAN frigates, as well as supply, refueling and support ships, and three naval communications stations.

"This contract extends the close professional relationship CSC has established with the Australian Defence Department through a succession of highly successful projects," said Mike Shove, managing director of CSC's Australian Operations. "The Royal Australian Navy demands the very highest technological and security standards. The fact that it has turned to CSC is a tribute to the experience and quality of services we offer."

CSC has already started work on stage one of the project, including the design, production, installation, testing and start up of a local and wide area network (LAN/WAN) system at one land station and on one ship. Stage two includes options to extend the LAN/WAN to two more land bases and 16 ships.

The project will allow ships to use e-mail and Internet communications at sea through a secure LAN and WAN for the first time. The system will be interoperable with Australia's coalition partners.

CSC will work with fibre optics specialist CDM, logistics and training company KBR and information security company Network Forensics.

About CSC

Founded in 1959, 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 90,000 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 July 2, 2004. For more information, visit the company's Web site at www.csc.com.