Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW Top Public Sector Marketer Joins CDW Government Vernon Hills, Ill. - September 4, 2002 - CDW Government, Inc. (CDW-G), a wholly owned subsidiary of CDW Computer Centers, Inc. (Nasdaq: CDWC), today announced Ann-Marie Clark has joined the company as director of CDW-G marketing. In this position, Clark will be a member of CDW's marketing organization and her responsibilities include creating and overseeing the government and education marketing strategy. Clark will be based in CDW-G's Lansdowne, Virginia office. "Ann-Marie truly understands the government and education market spaces," said Joe Kremer, vice president of marketing. "CDW-G President Jim Shanks and I are excited to have her on board. We expect her to be instrumental as we expand our leadership position in this sector." Prior to joining CDW-G, Clark served as manager of federal marketing for Hewlett-Packard/Compaq, a leading global provider of products, technologies, solutions and services. Previously, she held senior marketing positions with technology companies selling to the public sector. Clark earned a master's degree from American Graduate School of International Management and a bachelor's degree in marketing communications from Virginia Tech. About CDW-G A wholly owned subsidiary of CDW Computer Centers, Inc. (Nasdaq:CDWC), CDW-G addresses the unique needs of customers in the government and education markets and signals CDW's long-term commitment to providing specialized service to these markets. Building on CDW's model as the country's direct solutions provider of complete, customized computing solutions, CDW-G combines advanced technology and personalized service to provide government and education customers with computing solutions for their specific needs. The company offers one-on-one relationships with highly-trained account managers; telephone and online purchasing; custom configured solutions and same day shipping options; flexible financing solutions; and lifetime 24x7 phone and online technical support, with more than 75 factory-trained and A+ certified technicians on staff. Voted the No. 1 Reseller of the Year in 2000 by Federal Computer Week, CDW-G offers the full range of government procurement vehicles, including GSA Schedule, open-market purchases, blanket purchase agreements and other formal bid contracts. For more information about CDW-G product offerings, procurement options, service and solutions, call 1-800-863-4239 or visit the CDW-G Web site at www.cdwg.com.