“The last three versions of Apple’s desktop operating system have been adopted at a rate almost three times that of the best-performing edition of Windows, 2009’s Windows 7,” Keizer reports. “Five months after its 2009 launch, Snow Leopard powered 32% of all Macs, while Lion and Mountain Lion, which debuted in 2011 and 2012, each accounted for 29% of all Mac machines by the end of their fifth month.”
Keizer reports, “That’s in contrast to Microsoft Windows, which has had varied success in the same time span: At the end of its fifth month, Windows 7 accounted for 11% of all Windows PCs, more than twice the 5% share of Vista two years earlier. Windows 8, which shipped in late October 2012, looks to be on the same usage uptake trajectory as Vista…”
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