User: With regards to the history of Microsoft Windows, how many versions of Windows have there been?
Assistant: There have been a total of 20 versions of Windows. The first version was called Windows 1.0, which was released in 198User: Give me more.
Assistant: Sure, here's some more:
5. Windows 1.0 was the first version of Windows, and it ran on the IBM PC platform. The first version of Windows was designed by Paul Allen and Bill Gates.