Microsoft introduced an operatin environment named Windows on 20 November 1985 as a graphical operatin system shell for MS-DOS in repon tae the grawin interest in graphical uiser interfaces (GUI).[3] Microsoft Windies came tae dominate the warld's personal computer merkat wi ower 90% merkat share, owertakin Mac OS, that haed been introduced in 1984.
As o July 2015[update], the maist recent versions o Windies for personal computers, mobile devices, server computers an embeddit devices are respectively Windows 10, Windows 10 Mobile, an Windows Server 2012.
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