I would use windows because it is poular and has a variety of editions:
Date Product name Support status
June 1985 Windows 1.01 Unsupported
August 1986 Windows 1.03 Unsupported
December 1987 Windows 2.03 Unsupported
June 1988 Windows 2.1 Unsupported
May 1990 Windows 3.0 Unsupported
April 1992 Windows 3.1 Unsupported
January 1994 Windows 3.2 Unsupported
October 1992 Windows For Workgroups 3.1 Unsupported
August 1993 Windows NT 3.1 Unsupported
November 1993 Windows For Workgroups 3.11 Unsupported
September 1994 Windows NT 3.5 Unsupported
November 1994 Windows NT 3.51 Unsupported[19]
August 1995 Windows 95 Unsupported
September 1996 Windows NT 4.0 Unsupported
June 1998 Windows 98 Unsupported
February 2000 Windows 2000 Extended Support until June 13, 2010[20]
July 2000 Windows Me Unsupported
October 2001 Windows XP Unsupported for RTM as of September 30, 2004 and for SP1 as of October 10, 2006[21]
Current for SP2
March 2003 Windows XP 64-bit Edition (Itanium) Unsupported
April 2003 Windows Server 2003 / Windows XP Professional x64 Edition Unsupported for RTM, SP1 and SP1a
Current for SP2
January 2007 Windows Vista Current
2010 or later (planned) Windows 7 (Formerly codenamed Blackcomb, changed to Vienna now known as Windows 7) Future release
Date Product name Support status
June 1985 Windows 1.01 Unsupported
August 1986 Windows 1.03 Unsupported
December 1987 Windows 2.03 Unsupported
June 1988 Windows 2.1 Unsupported
May 1990 Windows 3.0 Unsupported
April 1992 Windows 3.1 Unsupported
January 1994 Windows 3.2 Unsupported
October 1992 Windows For Workgroups 3.1 Unsupported
August 1993 Windows NT 3.1 Unsupported
November 1993 Windows For Workgroups 3.11 Unsupported
September 1994 Windows NT 3.5 Unsupported
November 1994 Windows NT 3.51 Unsupported[19]
August 1995 Windows 95 Unsupported
September 1996 Windows NT 4.0 Unsupported
June 1998 Windows 98 Unsupported
February 2000 Windows 2000 Extended Support until June 13, 2010[20]
July 2000 Windows Me Unsupported
October 2001 Windows XP Unsupported for RTM as of September 30, 2004 and for SP1 as of October 10, 2006[21]
Current for SP2
March 2003 Windows XP 64-bit Edition (Itanium) Unsupported
April 2003 Windows Server 2003 / Windows XP Professional x64 Edition Unsupported for RTM, SP1 and SP1a
Current for SP2
January 2007 Windows Vista Current
2010 or later (planned) Windows 7 (Formerly codenamed Blackcomb, changed to Vienna now known as Windows 7) Future release