Operating Systems
Windows 1.0....................November 1985
Windows 2.0....................December 1987
Windows 286 v2.10...................May 1988
Windows 286 v2.11...................May 1988
Windows 386 v2.10...................May 1989
Windows 286 v2.11...................May 1989
Windows 3.0.........................May 1990
Windows 3.1......................August 1992
Windows for Workgroups 3.1......October 1992
windows NT 3.1...................August 1993
Windows NT 3.1 Advanced Server...August 1993
Windows for Workgroups 3.11....November 1993
Windows 3.2.....................January 1994
windows NT 3.5................September 1994
windows NT 3.5 Server.........September 1994
Windows NT 3.51....................June 1995
Windows NT Server 3.51.............June 1995
Windows 95.......................August 1995
Windows NT 4.0.....................July 1996
Windows NT Server 4.0..............July 1996
Windows 98.........................June 1998
Windows 98 SE.......................May 1999
Windows 2000 Professional......February 2000
Windows 2000 Server............February 2000
Windows 2000 Advanced Server...February 2000
Windows ME.........................June 2000
Windows XP Home.................October 2001
Windows XP Professional.........October 2001


Microsoft OS/2 1.0
Microsoft OS/2 1.2
Microsoft OS/2 1.3
IBM OS/2 1.0
IBM OS/2 1.1
IBM OS/2 1.2
IBM OS/2 1.3
IBM OS/2 2.0
IBM OS/2 2.1
IBM OS/2 2.11
IBM OS/2 Warp 3.0
IBM OS/2 Warp 4.0
QDOS 0.10....................September 1980
CP/M-86.......................December 1980
MS-DOS 1.14.......................July 1981
PC-DOS 1.0......................August 1981
PC DOS 1.1.........................May 1982
MS-DOS 1.25........................May 1982
MS-DOS 2.0.......................March 1983
PC DOS 2.0.......................March 1983
PC DOS 2.1.....................October 1983
MS-DOS 2.11......................March 1984
MS-DOS 3.0......................August 1984
PC DOS 3.0...................September 1984
MS-DOS 3.1....................November 1984
PC DOS 3.1.......................March 1985
PC DOS 3.2....................December 1985
MS-DOS 3.2.....................January 1986
PC DOS 3.3.......................April 1987
MS-DOS 3.3......................August 1987
DR-DOS 3.31........................May 1988
MS-DOS 4.0........................June 1988
PC DOS 4.0........................July 1988
MS-DOS 4.01...................December 1988
DR-DOS 5.0.........................May 1990
PC DOS 5.0.........................May 1991
MS-DOS 5.0........................June 1991
DR-DOS 6.0...................September 1991
MS-DOS 6.0.......................March 1993
PC DOS 6.1........................June 1993
MS-DOS 6.2....................November 1993
Novell DOS 7..................December 1993
MS-DOS 6.21...................February 1994
PC DOS 6.3.......................April 1994
MS-DOS 6.22.......................June 1994
PC DOS 7.0.......................April 1995
PC DOS 2000......................April 1998
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