Build list legend
|Version of Microsoft Windows|
|OS family||16-bit Windows|
|Preliminary name||Interface Manager|
According to Microsoft, Windows 1.0 is a 16-bit "Operating Environment" designed to run on top of MS-DOS and is not a standalone operating system. This version was succeeded by Windows 2.x.
The development of Windows started in early 1983 when Bill Gates felt the danger of rival companies like VisiCorp, which started to make their graphical systems to handle multitasking apps. The first build of Windows known to exist was the one shown in BYTE magazine in December 1983. At first, it was intended to be called Interface Manager, then Microsoft Desktop, but the name was changed to Microsoft Windows before the official announcement.
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