Microsoft
Windows
is a series of graphical interface operating systems developed,
marketed, and sold by Microsoft.
Microsoft
introduced an operating environment named Windows
on November 20, 1985 as a graphical operating system shell for MS-DOS
in response to the growing interest in graphical user interfaces
(GUIs). Microsoft Windows came to dominate the world's personal
computer market with over 90% market share, overtaking Mac OS, which
had been introduced in 1984.
As
of April 2014, the most recent versions of Windows for personal
computers, smartphones, server computers and embedded devices are
respectively Windows 8.1, Windows Phone 8.1, Windows Server 2012 R2
and Windows Embedded 8.
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