The threat of entry •Also, healthy growth was the Windows server market, which represents the larges t segment by unit shipments worldwide, accounting for $3.2 billion in sales in t he first quarter. According to IDC, sales of Windows servers grew almost 10 perc ent in the first quarter compared with a year ago. The research firm reported th at Windows servers have seen "modest but steady growth" in recent quarters. •Coming as no surprise to server-industry observers, the Linux server market exp erienced the greatest increase, growing 35 percent to $538 million from the firs t quarter of 2002. "While HP continues to lead the Linux market, Dell and IBM ar e working hard to post market-share gains in the Linux server market." said Bozm an •Signaling a major market shift, Hewlett-Packard has taken the lead in worldwide server sales in the first quarter, beating traditional front runner IBM, accord ing to research firm IDC (http://www.newsfactor.com/story.xhtml?story_id=21646&page=1 http://www.newsfactor.com/story.xhtml?story_id=21646&page=