Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW CDW Name Change Takes Effect VERNON HILLS, Ill. - June 18, 2003 - CDW Computer Centers, Inc. (Nasdaq: CDWC) is now officially "CDW Corporation," effective today. Shareholders of CDW, a leading provider of technology products and services to businesses, government and education, approved the name change at the company's annual meeting of shareholders on May 21, 2003. About CDW CDW® (Nasdaq: CDWC), ranked No. 381 on the FORTUNE 500, is a leading provider of technology solutions for businesses, government agencies and educational institutions nationwide. CDW is a principal source of technology products and services including top name brands such as APC, Apple, Cisco, HP, IBM, Microsoft, Sony, Symantec, Toshiba and ViewSonic. CDW distributes contracts to end users for customized and standardized on-site services supplied directly by providers such as HP Services and Unisys and for training programs provided by firms such as KnowledgeNet and Productivity Point International. CDW was founded in 1984 as a home-based business and today employs 3,000 coworkers whose efforts generated net sales of more than $4.2 billion in 2002. CDW's direct model offers one-on-one relationships with knowledgeable account managers; purchasing by telephone, fax, the company's award-winning www.cdw.com Web site or customized CDW@work™ extranets; custom configured solutions and same day shipping; flexible financing solutions; and pre- and post-sales technical support, with more than 100 factory-trained and A+ certified technicians on staff. Additional information can be found by visiting www.cdw.com.