Thi is the first windows pc released on earth
Windows 2.0 is a 16-bit Microsoft Windows GUI-based operating environment that was released on December 9, 1987, and is the successor to Windows 1.0.
Windows/286 2.10 and Windows/386 2.10 were released on May 27, 1988, less than six months after the release of Windows 2.0.
Windows 3.0, a graphical environment, is the third major release of Microsoft Windows, and was released on May 22, 1990. It became the first widely successful version of Windows and a rival to Apple Macintosh and the Commodore Amiga on the GUI front. It was followed by Windows 2.0
Windows 95 merged Microsoft's formerly separate MS-DOS and Windows products. It featured significant improvements over its predecessor, Windows 3.1, most notably in the graphical user interface (GUI) and in its simplified "plug-and-play" features
Windows NT 4.0 is a preemptively multitasked, graphical operating system, designed to work with either uniprocessor or symmetric multi-processor computers