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Windows 1.0 was released on November 20, 1985 as the first version of the Microsoft Windows line
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the development of windows computers
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Windows 2.0 is a 16-bit Microsoft Windows GUI-based operating environment that was released on December 9, 1987 [1] and is the successor to Windows 1.0.
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The first version of OS/2 was released in December 1987 and newer versions were released until December 2001.
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Windows 3.0, a graphical environment, is the third major release of Microsoft Windows, and was released on May 22, 1990.
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The series began with Windows 3.1, which was first sold during April 1992 as a successor to Windows 3.0. Subsequent versions were released between 1992 and 1994 until the series was superseded by Windows 95.
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Windows NT 3.1 (Microsoft marketing wanted Windows NT to appear to be a continuation of Windows 3.1) arrived in Beta form to developers at the July 1992 Professional Developers Conference in San Francisco.
