Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW CDW-G Enjoys Renewal of GSA Schedule Vernon Hills, IL - July 21, 2004 - CDW Government, Inc. (CDW-G), the government and education subsidiary of CDW Corporation [Nasdaq: CDWC], today announced that the company's General Services Administration ("GSA") schedule has been extended for five years. CDW-G provides federal agencies with leading technology products and services through the GSA. "The GSA is an important partner to CDW-G and their confidence in the company is sincerely appreciated," said Kevin Adams, vice president, program management, CDW-G. "We're looking forward to working with the GSA over the next five years to serve our mutual public sector customers." About CDW-G A wholly owned subsidiary of CDW Corporation (NASDAQ: CDWC) ranked No. 376 on the FORTUNE 500 list, CDW-G addresses the unique needs of the government and education markets with brand-name technology products and services. CDW-G is a leading source of technology products and services from top name brands such as APC, Apple, Cisco, HP, IBM, Microsoft, Sony, Symantec, Toshiba and ViewSonic. For more information about CDW-G's product offerings, procurement options, service and solutions, call 1.800.863.4239 or visit CDWG.com. About CDW Additional information can be found by visiting CDW.com.