Android (operating system) wrote in "The New York Times" that "About one of every two computers sold today is running Android. [It] has become Earth's dominant computing platform." According to a Statistica's estimate, Android smartphones had an installed base of 1.8 billion units in 2015, which was 76% of the estimated total number of smartphones worldwide. Android has the largest installed base of any mobile operating system and, since 2013, the highest-selling operating system overall with sales in 2012, 2013 and 2014 close to the installed base of all PCs. In the second quarter of 2014, Android's share of the global smartphone shipment
Usage share of operating systems developer survey provides no detail about particular versions of Windows. The desktop operating system share among those identifying as Professional Developers was: In June 2016, Microsoft claimed Windows 10 had half the market share, then in the US (and UK), of all Windows installations (only), as quoted by BetaNews: As of February 2017, Microsoft's trend page has Windows 10 (for global data) at 47% (for "PC and tablet: All users"), more than any other Windows version, and at 56% (for "PC and tablet: Gamers"). Note, while data seems contradictory and limited, all data is; Microsoft may have good access to