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History of Microsoft OS

source:

Years Description Reference
1975 Microsoft is a startup formed as a partnership of Bill Gates and Paul G. Allen for the desktop computer business. image
June 1980 Birth of Microsoft Disk operating system "MS‑DOS" which is a text based software designed for bridging the gap between the hardware and application programs for the operator of desktop computer. MS‑DOS ships in 1981. Versions:
  • 1981:-MS-DOS 1.0
  • 1982:-MS-DOS 1.25
  • 1983:-MS-DOS 2.0
  • 1984:-MS-DOS 2.11  MS-DOS 3.0  MS-DOS 3.1
  • 1985:-MS-DOS 2.25
  • 1986:-MS-DOS 3.2
  • 1987:-MS-DOS 3.3
  • 1988:-MS-DOS 4.0  MS-DOS 4.01
  • 1991:-MS-DOS 5.0
  • 1993:-MS-DOS 6.0  MS-DOS 6.2
  • 1994:-MS-DOS 6.21  MS-DOS 6.22
  • 1995:-MS-DOS 7.0 (Windows 95)
  • 1996:-MS-DOS 7.1 (Windows 95 OSR2)
  • 2000:-MS-DOS 8.0 (Windows ME)
image image
1981 MS-DOS 1.0 image
1982 The difficulty of using the text based MS-DOS causes the need of a better interface between the user and the personal computer. In 1983, the development of Windows is announced. Versions:
  • 1985:-MS-Windows 1.0
  • 1987:-MS-Windows 2.0
  • 1988:-MS-Windows 2.1
  • 1989:-MS-Windows 2.11
  • 1990:-MS-Windows 3.0
  • 1992:-MS-Windows 3.1
  • 1993:-MS-Windows for Workgroups 3.11
  • 1993:-MS-Windows NT 3.1
  • 1994:-MS-Windows NT 3.5
  • 1995:-MS-Windows NT 3.51
  • 1995:-MS-Windows 95
  • 1996:-MS-Windows NT 4
  • 1998:-MS-Windows 98
  • 1999:-MS-Windows 98SE
  • 2000:-MS-Windows 2000
  • 2000:-MS-Windows ME
  • 2001:-MS-Windows XP
  • 2003:-MS-Windows Server 2003
  • 2005:-MS-Windows XP x86-64
  • 2007:-MS-Windows Vista
  • 2008:-MS-Windows Server 2008
  • 2009:-MS-Windows 7
  • 2009:-MS-Windows Server 2008R2
  • 2012:-MS-Windows 8
  • 2012:-MS-Windows Server 2012
  • 2013:-MS-Windows 8.1
  • 2013:-MS-Windows Server 2012 R2
  • 2015:-MS-Windows 10last updated 22Aug2016
imageimage
1985 MS-Windows 1.0 image
1987 MS-DOS 3.3 image
1987 MS-Windows 2.0

Microsoft Windows/386 or Windows 386 (1988)
Microsoft Windows/286 or Windows 286 (1988)
 last updated 18May2017
imageimage
1990 MS-Windows 3.0

Microsoft Windows 3.0 or Windows 3.0a with multimedia (1991)  last updated 18May2017
image
1992 MS-Windows 3.1

Microsoft Windows for Workgroups 3.1 (1992)
Microsoft Windows 3.11 (1993)
Microsoft Windows for Workgroups 3.11 (1994)
 last updated 18May2017
image
1993 MS-Windows NT 3.1

Microsoft changes the name of new OS that not cooperating with OS/2 to Windows NT. (1991)  last updated 18May2017
image
1994 MS-DOS 6.22 image
1994 MS-Windows NT 3.5

Microsoft Windows NT 3.51 (1995)  last updated 18May2017
image
1995 MS-Windows 95

Microsoft Windows 95 Service Pack 1 (4.00.950A) (1995)
Microsoft Windows 95 (4.00.950B) aka OSR2 with FAT32 and MMX support (1996)
Microsoft Windows CE 1.0 (1996)
Windows CE 2.0 (1997)
Microsoft Windows 95 (4.00.950C) aka OSR2.5 (1997)
Microsoft Windows CE 2.1 (1998)
Windows CE 3.0 (1999)
Windows CE changes to  Pocket PC (2000)

 last updated 18May2017
imageimage
1996 MS-Windows NT 4.0 image
1998 MS-Windows 98

Microsoft Windows 98 SE (Second Edition) (1999)
last updated 18May2017
image
2000 MS-Windows 2000 image
2000 MS-Windows ME image
2001 MS-Windows XP

Microsoft Windows XP 64-Bit edition (Version 2002) for Itanium systems (2001)
Microsoft Windows XP 64-Bit edition (Version 2003) for Itanium 2 systems (2003)
Microsoft Windows XP Media Center edition 2003 (2003)
Microsoft  Windows XP Media Center edition 2005 (2004)

last updated 18May2017
image
2003 MS-Windows Server 2003 image
2005 MS-Windows XP x86-64 image
2007 Microsoft codenamed "Longhorn" changes to Windows Vista (2005)
Microsoft Windows Vista to corporations (2006)

last updated 18May2017

MS-Windows Vista
image
2008 MS-Windows Server 2008 image
2009 MS-Windows 7 image
2009 MS-Windows Server 2008 R2 image
2012 MS-Windows 8 image
2012 MS-Windows Server 2012 imageimage
2013 MS-Windows 8.1 image image
2013 MS-Windows Server 2012 R2 imageimageimage
2015 MS-Windows 10last updated 22Aug2016 imageimageimage
2016 MS-Windows Server 2016 last updated 18May2017 image
2021 MS-Windows 11last updated 20Dec2021 image image

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