Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW CDW to Host Annual Meeting of Shareholders VERNON HILLS, Ill. - May 15, 2003 - CDW Computer Centers, Inc. (Nasdaq: CDWC), a leading provider of technology products and services, will host its tenth annual meeting of shareholders on Wednesday May 21, 2003 at 5:00 p.m. Central Daylight Time. The meeting will be held at the company's sales office in Mettawa, Ill. Management's presentation will be Webcast live on the Company's Web site at www.cdw.com/investor and through streetevents.com. An audio replay of the presentation will be available beginning approximately two hours after the event and remaining until June 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.