If you are familiar with computers the chances are you are familiar with Microsoft Windows. The software has gone through many evolutions over the years, which has lead to a revolution in the way we use computers.
1985 - Windows 1.0
1987 - Windows 2.0
1990 - Windows 3.0
1992 - Windows 3.1
1995 - Windows 95
1996 - Windows NT 4.0
1998 - Windows 98
2000 - Windows 2000
2001 - Windows XP
2007 - Windows Vista
Windows 7