Members of the Windows 1.0 team at their 40-year reunion this week. L-R, kneeling/sitting: Joe Barello, Ed Mills, Tandy Trower, Mark Cliggett, Steve Ballmer (holding a Windows 1.0 screenshot) and Don ...

Depending on how you count them, there have been 15 major versions of Windows, with Microsoft's inconsistent naming scheme resulting in the current version of Windows being Windows 11—go figure. A lot ...