Quote:
Originally Posted by
iPeon 
Windows 3.0
Windows 3.1
Windows 95
Windows NT
Windows 98
Windows 2000
Windows Millennium Edition (Me)
Windows XP
Windows Vista
Now Windows 7.
These boys can't even get a logical naming scheme.

There were a lot more versions than that:
Windows 1.0 - Nov. 20, 1985
Windows 2.0 - Dec. 9, 1987
Windows 3.0 - May 22, 1990
Windows 3.1 - Aug. 1992
Windows for Workgroups 3.1 - Oct. 1992
Windows NT 3.1 - Aug. 1993
Windows for Workgroups 3.11 - Nov. 1993 (One of my favorites!)
Windows 3.2 (Chinese only) - Oct. 1993
Windows NT 3.5 - Sept. 1994
Windows NT 3.51 - June 1995
Windows 95 - Aug. 24, 1995 (I remember that day vividly)
Windows 95 SP1 - Dec. 31, 1995
Windows NT 4.0 - July 29, 1996
Windows 95 OSR2 - Aug. 24, 1996
Windows 95 OSR2.1 - Aug. 27, 1997
Windows 98 - June 25, 1998
Windows 98 Second Edition - May 5, 1999
Windows ME - June 19, 2000
Windows 2000 - February 17, 2000
(came in Professional, Server, Advanced Server, Datacenter Server)
Windows XP - October 25, 2001
(came in XP 64-bit Edition, XP Professional for Intel IA-64)
Windows Tablet PC Edition
Windows Media Center Edition (2003, 2004, 2005)
Windows XP Tablet PC Edition (upgrade 2005)
Windows XP Professional x64 (x86-64)
Windows XP Professional N (no Windows Media Player)
Windows XP Professional
Windows XP Home Edition N (no Windows Media Player)
Windows XP Home
Windows XP Starter Edition (for developing countries)
Windows Server 2003 (Small Business Server, Web Edition, Standard Edition, Enterprise Edition, Datacenter Edition, Storage Server)
Windows XP Embedded
Windows Fundamentals for Legacy PCs
Windows Embedded CE 6.0
Windows Vista (Starter, Home Basic, Home Premium, Business, Enterprise, Ultimate)
Windows Home Server)
Windows Server 2008 (upcoming.. to include: Web Server, Standard Edition, Enterprise Edition, Datacenter Edition, Storage Server, Small Business Server, Essential Business Server)
Windows 7 (upcoming)
This exhaustive list also does not include the Windows CE based OS: (Windows Mobile, Win CE1.0, Win CE 2.0, Win CE 2.1, Win CE, 2.11, Win CE 2.12, Win CE 3.0, Win CE)
And... I wouldn't be surprised if I'm missing some like the Windows Mobile 4, 5, 6, etc.
I think the Mac is pretty tame when it comes to versions compared to Microsoft.