CSC Listed in ‘Leaders’ Quadrant of Data Center Outsourcing Report

News Release -- June 27, 2005

EL SEGUNDO, Calif., June 27 -- Computer Sciences Corporation (NYSE: CSC) today announced that it has been listed in the “leaders” quadrant of the Gartner report, Magic Quadrant for Data Center Outsourcing, 2005. The report positions leading providers of data center services based on their ability to execute and their completeness of vision.

According to Gartner, “Leaders are performing well today, have a clear vision of market direction and are actively building competencies to sustain their leadership position in the market.” Authored by Richard Matlus and William Maurer, the report covers external service providers in North America. To qualify for the report, service providers needed at least $50 million in annual data center outsourcing revenue and 10 North American client references.

“We are pleased to see our expertise acknowledged by Gartner,” said Russ Owen, president of CSC’s Global Infrastructure Services group. “We believe findings such as these reaffirm CSC’s experience and ability to leverage our industry knowledge to deliver effective solutions and operational results to our clients.”

Gartner characterizes data center outsourcing services as one of the most mature information technology (IT) service categories. Service providers are positioned in the Magic Quadrant based on formal presentations by participating vendors, client reference checks and analyst knowledge of the market.

About the Gartner Magic Quadrant

The Magic Quadrant is copyrighted 2005 by Gartner, Inc. and is reused with permission. The Magic Quadrant is a graphical representation of a marketplace at and for a specific time period. It depicts Gartner's analysis of how certain vendors measure against certain criteria for that marketplace, as defined by Gartner. Gartner does not endorse any vendor, product or service depicted in the Magic Quadrant, and does not advise technology users to select only those vendors placed in the “leaders” quadrant. The Magic Quadrant is intended solely as a research tool, and is not meant to be a specific guide to action. Gartner disclaims all warranties, express or implied, with respect to this research, including warranties of merchantability or fitness for a particular purpose.

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 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 $14.1 billion from continuing operations for the 12 months ended April 1, 2005. For more information, visit the company's Web site at www.csc.com.