Please direct your media and public relations inquiries to: mediarelations@cdw.com 800-800-4CDW CDW Acquires Shares Under Stock Repurchase Program VERNON HILLS, Ill. - May 7, 2002 - CDW Computer Centers, Inc. (Nasdaq: CDWC) announced today that it has, in connection with its previously announced stock repurchase program, completed the purchase of a total of 384,376 shares of its common stock at a per share price of $49.50 from Daniel B. Kass, executive vice president and a director of the Company. Under its buyback program announced in January 2001, the Company has purchased a total of 3.2 million shares (including the shares in this transaction) out of an authorized amount of 5 million shares. Pursuant to a registration rights agreement between the Company and Mr. Kass, Mr. Kass has the right to require one time in each of calendar years 2001, 2002 and 2003, that the Company register for public sale CDW common stock held by Mr. Kass or acquired by him pursuant to the exercise of options under the MPK Stock Option Plan. In connection with this repurchase, Mr. Kass agreed to waive this right with respect to 2002. After this transaction, Mr. Kass will continue to have options under the MPK Stock Option Plan to purchase 150,000 shares of CDW common stock owned by Michael P. Krasny, the Company's founder and former chairman and chief executive officer. About CDW CDW® (Nasdaq: CDWC), ranked No. 414 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 from top name brands such as Cisco, Compaq, Computer Associates, Hewlett-Packard, IBM, Intel, Microsoft and Toshiba. CDW distributes contracts to end users for customized and standardized on-site services supplied directly by providers such as Compaq Global Services and DecisionOne 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 more than 2,800 coworkers whose efforts generated net sales of approximately $4 billion in 2001. CDW's direct model offers one-on-one relationships with highly trained account managers; purchasing by fax, telephone, 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 phone and online technical support, with more than 100 factory-trained and A+ certified technicians on staff.