09-21-2009, 08:36 PM
It comes from here
MS/IBM OS/2 1.x (text based)
MS/IBM OS/2 2.x (Icon look)
Windows NT started at 3.1 (looks like Windows 3.1)
Windows NT 3.5 (had the Windows 95 look)
Windows NT 4 (version 4, duh!)
Windows 2000 (Windows NT 5.0)
Windows XP (Windows (NT) 5.1)
Windows Vista (Windows (NT) 6)
Windows 7
MS/IBM OS/2 1.x (text based)
MS/IBM OS/2 2.x (Icon look)
Windows NT started at 3.1 (looks like Windows 3.1)
Windows NT 3.5 (had the Windows 95 look)
Windows NT 4 (version 4, duh!)
Windows 2000 (Windows NT 5.0)
Windows XP (Windows (NT) 5.1)
Windows Vista (Windows (NT) 6)
Windows 7