- where Microsoft Corp.'s Windows has ruled for more than a decade.
Linux has a barely measurable market share in PCs vs. Microsoft's 90%-plus vice grip on the segment. But the legions of volunteers who've created
Linux aren't ceding the market. And big-name corporate support and Windows defections by Microsoft-wary governments have breathed new life into the
IBM Corp., a big backer of Linux for corporate servers, threw its weight this month behind Linux for PCs. It announced that it's
converted 15,000 of its own machines to Linux and plans to switch another 60,000 next year.