"Last month, Windows 7 passed Windows Vista in market share, according to Netmarketshare.com. One year after Windows 7 hit RTM and nine months after it was released, Microsoft's newest OS managed to acquire more users than its predecessor. The operating system reached the 10 percent market share mark four months ago, and just last week Microsoft announced it had sold 175 million licenses so far.

If we take a look at the last 12 months, it's very clear that Windows 7 is surging forward. Meanwhile, Windows Vista has lost about four and a half percent in the last year, while Windows XP has lost almost 10 percent. Mac OS, meanwhile, has gained almost a fifth of a percent and Linux last month lost its recent gains. "