| Debunking the Linux-Windows market-share myth |
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There are dozens of reasons why people have underestimated how quickly Linux has been grabbing Windows' market share, but the Evans data confirms one of my pet theories. Windows market share is usually estimated by the units of Windows Microsoft claims to have shipped. This figure is already skewed, because it includes every unsold box of Windows XP sitting on shelves at Best Buy or Circuit City. More significant, however, is the fact that it includes every PC with a pre-installed version of Windows.
Linux market share, on the other hand, is usually estimated based on surveys, number of commercial boxes sold and the number of downloads.
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