News Release-- June 29, 2006

AUSTRALIAN GOVERNMENT AGENCIES AWARD CSC $82 MILLION IN CONTRACT EXTENSIONS

DIMA and AEC Renew Agreements

EL SEGUNDO, Calif., June 29 – Computer Sciences Corporation (NYSE: CSC) today announced that the Australian Federal Department of Immigration and Multicultural Affairs (DIMA) and the Australian Electoral Commission (AEC) have extended their contracts with CSC. The new agreements have an estimated total value to CSC of $82 million (AUD$112 million) if all options are exercised.

Under the DIMA extension, which is for two years with an option for an additional two years, CSC will continue to provide mainframe and mid-range services in support of the department’s core Border Critical Infrastructure. Under the AEC extension, which is for one year with an option for another year, CSC will continue providing mainframe services.

“We are delighted to extend our long-term relationships with these agencies,” said Mike Shove, managing director of CSC’s Australian operations. “Together they further demonstrate CSC’s ability to deliver significant results.”

CSC’s original contracts with DIMA and the AEC were part of the Australian Federal Government’s Cluster 3 outsourcing contract, which was signed in 1998. In 2002, under the terms of that contract, DIMA exercised its option to extend for four years. The latest extension specifically for Border Critical Infrastructure Services falls within the original Cluster 3 tender.

About CSC

Founded in 1959, 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 $14.6 billion for the 12 months ended March 31, 2006. For more information, visit the company’s Web site at www.csc.com.