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 ...

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 ...