Windows 8's share also grew very slightly last month to 0.05 percent, or five PCs out of every 10,000, from 0.03 percent in November. That OS has yet to enter beta -- Microsoft has set the release for late February -- but a developer's preview has been available for three and a half months.
Net Applications calculates operating system usage share with data obtained from more than 160 million unique visitors who browse 40,000 Web sites that the company monitors for clients. More operating system stats can be found on the company's site.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed. His email address is email@example.com.
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