Timeline of operating systems

This article presents a timeline of events in the history of computer operating systems from 1951 to the current day. For a narrative explaining the overall developments, see the History of operating systems.

1 1950s
2 1960s
3 1970s
4 1980s
5 1990s
6 2000s
7 2010s
8 See also
- 8.1 Category links
9 References
10 External links

1950s

1951
- LEO I 'Lyons Electronic Office'^[1] was the commercial development of EDSAC computing platform, supported by British firm J. Lyons and Co.
1954
- MIT's Tape Director operating system made for UNIVAC 1103^[2]
1955
- General Motors Operating System made for IBM 701^[3]
1956
- GM-NAA I/O for IBM 704, based on General Motors Operating System
1957
- Atlas Supervisor (Manchester University) (Atlas computer project start)
- BESYS (Bell Labs), for IBM 7090 and IBM 7094
1958
- University of Michigan Executive System (UMES), for IBM 704, 709, and 7090
1959
- SHARE Operating System (SOS), based on GM-NAA I/O

1960s

1960
- IBSYS (IBM for its 7090 and 7094)
- KDF9 Timesharing Director (English Electric) An early, fully hardware secured, fully pre-emptive process switching, multi-programming operating system for KDF9 (Announced)
1961
- CTSS (MIT's Compatible Time-Sharing System for the IBM 7094)
- MCP (Burroughs Master Control Program)
1962
- Atlas Supervisor (Manchester University) (Atlas computer commissioned)
- GCOS (GE's General Comprehensive Operating System, originally GECOS, General Electric Comprehensive Operating Supervisor)
1963
- Titan Supervisor, early time-sharing system begun
- AN/FSQ-32, another early time-sharing system begun
1964
- EXEC 8 (UNIVAC)
- OS/360 (IBM's primary OS for its S/360 series) (Announced)
- TOPS-10 (DEC, the name TOPS-10 wasn't adopted until 1970)
- Berkeley Timesharing System (for Scientific Data Systems' SDS 940)
- Dartmouth Time Sharing System (Dartmouth College's DTSS for GE computers)
1965
- THE multiprogramming system (Technische Hogeschool Eindhoven)
- Multics (MIT, GE, Bell Labs for the GE-645) (Announced)
- BOS/360 (IBM's Basic Operating System)
- TOS/360 (IBM's Tape Operating System)
- TSOS (later VMOS) (RCA)
1966
- OS/360 (IBM's primary OS for its S/360 series) PCP and MFT (Shipped)
- DOS/360 (IBM's Disk Operating System)
- MS/8 (Richard F. Lary's DEC PDP-8 system)
1967
- CP/CMS (IBM, also known as CP-67)
- Michigan Terminal System (MTS)^[4] (time-sharing system for the IBM S/360-67 and successors)
- ITS (MIT's Incompatible Timesharing System for the DEC PDP-6 and PDP-10)
- ORVYL (Stanford University's time-sharing system for the IBM S/360)
- TSS/360 (IBM's Time-sharing System for the S/360-67, never officially released, canceled in 1969 and again in 1971)
- OS/360 MVT
- WAITS (SAIL, Stanford Artificial Intelligence Laboratory, time-sharing system for DEC PDP-6 and PDP-10, later TOPS-10)
1968
- Airline Control Program (ACP) (IBM)
- TSS-8 (DEC for the PDP-8)
1969
- TENEX (Bolt, Beranek and Newman for DEC systems, later TOPS-20)
- Unics (later Unix) (AT&T, initially on DEC computers)
- RC 4000 Multiprogramming System (RC)
- Multics (MIT, GE, Bell Labs for the GE-645 and later the Honeywell 6180) (opened for paying customers in October^[5])

1970s

1970
- DOS-11 (PDP-11)
1971
- RSTS-11 2A-19 (First released version; PDP-11)
- OS/8
1972
- RDOS
- SVS
- VM/CMS
- MUSIC/SP
1973
- Эльбрус-1 (Elbrus-1) - Soviet computer - created using high-level language uЭль-76 (AL-76/ALGOL 68).
- VME - implementation language S3 (ALGOL 68).
- RSX-11D
- RT-11
- Alto OS
1974
- DOS-11 V09-20C (Last stable release, June 1974)
- SINTRAN III
- MONECS
1975
- CP/M
- BS2000 V2.0 (First released version)
- Sixth Edition Unix
1976
- Cambridge CAP computer [1] - All operating system procedures written in ALGOL 68C, with some closely associated protected procedures in BCPL.
- Cray Operating System
- FLEX^[6]
- TOPS-20
1977
- 1BSD
- KERNAL
- OASIS operating system
- TRS-DOS
- Virtual Memory System (VMS) V1.0 (Initial commercial release, October 25)
1978
- 2BSD
- Apple DOS
- HDOS 1.0
- TripOS
- UCSD p-System (First released version)
- Lisp Machine (CADR)
1979
- Atari DOS
- POS
- NLTSS
- UNIX/32V
- Version 7 Unix

1980s

1980
- CTOS^[7]
- OS-9
- 86-DOS
- SOS
- Pilot (Xerox Star operating system)
- Xenix
1981
- PC-DOS
- MS-DOS
- Business Operating System
- UTS
- Acorn MOS
- Aegis SR1 (First Apollo/DOMAIN systems shipped on March 27^[8])
1982
- Commodore DOS
- LDOS (By Logical Systems, Inc. - For the Radio Shack TRS-80 Models I, II & III)
- Sun UNIX (later SunOS) 0.7
- QNX
- Ultrix
1983
- Lisa Office System 7/7
- Coherent
- GNU (project start)
- Novell NetWare (S-Net)
- ProDOS
- SunOS 1.0
1984
- Mac OS (System 1.0)
- MSX-DOS
- Sinclair QDOS
- QNX
- UNICOS
- Venix 2.0
1985
- AmigaOS
- Atari TOS
- DG/UX
- MIPS OS
- Oberon - written in Oberon-2
- SunOS 2.0
- Version 8 Unix
- Windows 1.0
- Xenix 2.0
1986
- AIX 1.0
- GS-OS
- Genera 7.0
- HP-UX
- SunOS 3.0
- GEOS
- Version 9 Unix
1987
- Arthur
- IRIX (3.0 is first SGI version)
- MINIX 1.0
- BS2000 V9.0
- OS/2 (1.0)
- PC-MOS/386
- Windows 2.0
1988
- A/UX (Apple Computer)
- RISC iX
- LynxOS
- Mac OS (System 6)
- MVS/ESA
- OS/400
- SpartaDOS X
- SunOS 4.0
- TOPS-10 7.04 (Last stable release, July 1988)
- HeliOS 1.0
1989
- EPOC
- NEXTSTEP (1.0)
- RISC OS (First release was to be called Arthur 2, but was renamed to RISC OS 2, and was first sold as RISC OS 2.00 in April 1989)
- SCO UNIX (Release 3)
- TSX-32
- Version 10 Unix
- Xenix 2.3.4 (Last stable release)

1990s

1990
- AmigaOS 2.0
- BeOS (v1)
- Genera 8.0
- OSF/1
- AIX 3.0
- Windows 3.0
1991
- Linux
- Mac OS (System 7)
- MINIX 1.5
- PenPoint OS
- RISC OS 3^[9]
1992
- 386BSD 0.1
- AmigaOS 3.0
- Amiga Unix 2.01 (Latest stable release)
- RSTS/E 10.1 (Last stable release, September 1992)
- Solaris 2.0 (Successor to SunOS 4.x; based on SVR4 instead of BSD)
- OpenVMS V1.0 (First OpenVMS AXP (Alpha) specific version, November 1992)
- Plan 9 First Edition (First public release was made available to universities)
- Windows 3.1
1993
- FreeBSD
- NetBSD
- Newton OS
- Windows NT 3.1 (First Windows NT kernel public release)
- Open Genera 1.0
- IBM 4690 Operating System
- Novell NetWare 4
- Slackware 1.0
- Spring
1994
- AIX 4.0, 4.1
- RISC OS 3.5
- NetBSD 1.0 (First multi-platform release, October 1994)
1995
- Digital UNIX (aka Tru64 UNIX)
- OpenBSD
- OS/390
- Plan 9 Second Edition (Commercial second release version was made available to the general public)
- Ultrix 4.5 (Last major release)
- Windows 95
1996
- Mac OS 7.6 (First officially-named Mac OS)
- Windows NT 4.0
- RISC OS 3.6
- AIX 4.2
- Palm OS
1997
- Inferno
- Mac OS 8
- SkyOS
- MINIX 2.0
- RISC OS 3.7
- AIX 4.3
1998
- Solaris 7 (First 64-bit Solaris release. Names from this point drop "2.", otherwise would've been Solaris 2.7)
- Windows 98
- RT-11 5.7 (Last stable release, October 1998)
- Novell NetWare 5
- JUNOS
1999
- AROS (Boot for the first time in Stand Alone version)
- RISC OS 4
- Mac OS 9
- Windows 98 (2nd edition)
- Inferno Second Edition (Last distribution (Release 2.3, ca. July 1999) from Lucent's Inferno Business Unit)^[10]

2000s

Year-Month	Windows	Mac	BSD	Linux	Others
2000-01
2000-02	Windows 2000^[11]				Solaris 8
2000-03			FreeBSD 4.0	Red Hat Linux 6.2E	AtheOS BeOS R5
2000-04
2000-05
2000-06			OpenBSD 2.7		Plan 9 Third Edition^[12]
2000-07
2000-08				Debian 2.2	MorphOS 0.1^[13]
2000-09	Windows Millennium Edition^[14]			SUSE Linux 7.0
2000-10					z/OS MorphOS 0.2
2000-11
2000-12			NetBSD 1.5 OpenBSD 2.8		HP-UX 11i
2001-01
2001-02					MorphOS 0.4^[15]
2001-03		Mac OS X v10.0 "Cheetah"
2001-04
2001-05					AIX 5L 5.1
2001-06			OpenBSD 2.9
2001-07					eComStation 1.0
2001-08					Haiku ^[16]
2001-09		Mac OS X v10.1 "Puma"
2001-10	Windows XP^[17] Windows XP 64-bit Edition^[18]				Novell NetWare 6.0
2001-11
2001-12			OpenBSD 3.0		OS/2 4.52
2002-01
2002-02
2002-03				Red Hat Enterprise Linux 2.1 AS
2002-04				SUSE Linux 8.0	Plan 9 Fourth Edition^[19]
2002-05			OpenBSD 3.1		Solaris 9 (SPARC)
2002-06
2002-07				Debian 3.0	Syllable 0.4.0^[20]
2002-08		Mac OS X v10.2 "Jaguar"^[21]
2002-09	Windows XP Service Pack 1		NetBSD 1.6
2002-10					AIX 5.2
2002-11			OpenBSD 3.2		MorphOS 1.0
2002-12					MorphOS 1.1
2003-01			FreeBSD 5.0		Solaris 9 (x86)
2003-02					MorphOS 1.2 ReactOS 0.1.0
2003-03	Windows XP 64-bit Edition, Version 2003^[22]				MorphOS 1.3
2003-04	Windows Server 2003
2003-05			OpenBSD 3.3	Red Hat Enterprise Linux 2.1 ES
2003-06
2003-07
2003-08					Novell NetWare 6.5 MorphOS 1.4
2003-09					HP-UX 11i v2
2003-10		Mac OS X v10.3 "Panther"		Red Hat Enterprise Linux 3 SUSE Linux 9.0
2003-11			OpenBSD 3.4	Fedora Core 1
2003-12				Linux 2.6.0^[23]
2004-01				Linux 2.6.1	ReactOS 0.2.0
2004-02				Linux 2.6.2, 2.6.3
2004-03				Linux 2.6.4
2004-04				Linux 2.6.5
2004-05			OpenBSD 3.5	Linux 2.6.6 Fedora Core 2
2004-06
2004-07			DragonFly BSD 1.0
2004-08	Windows XP Service Pack 2			Linux 2.6.8	AIX 5.3
2004-09
2004-10				Linux 2.6.9 Ubuntu 4.10
2004-11			OpenBSD 3.6	Fedora Core 3
2004-12			NetBSD 2.0	Linux 2.6.10
2005-01					Solaris 10
2005-02				Red Hat Enterprise Linux 4
2005-03	Windows Server 2003 Service Pack 1 Windows XP Professional x64 Edition			Linux 2.6.11 Novell Open Enterprise Server
2005-04		Mac OS X v10.4 "Tiger"	DragonFly BSD 1.2	Ubuntu 5.04
2005-05			OpenBSD 3.7
2005-06				Linux 2.6.12 Fedora Core 4 Debian 3.1
2005-07
2005-08				Linux 2.6.13
2005-09
2005-10				Linux 2.6.14 Ubuntu 5.10 SUSE Linux 10.0
2005-11			FreeBSD 6.0 OpenBSD 3.8
2005-12			NetBSD 3.0
2006-01			DragonFly BSD 1.4	Linux 2.6.15	Solaris 10 1/06
2006-02
2006-03	Windows Server 2003 R2			Linux 2.6.16 Fedora Core 5
2006-04
2006-05			OpenBSD 3.9		SymbOS MINIX 3.1.2
2006-06				Linux 2.6.17 Ubuntu 6.06 (LTS)	Solaris 10 6/06
2006-07			DragonFly BSD 1.6
2006-08					BS2000/OSD v7.0^[24] ReactOS 0.3.0
2006-09				Linux 2.6.18
2006-10				Fedora Core 6 Ubuntu 6.10 Slackware 11.0
2006-11	Windows Vista		OpenBSD 4.0	Linux 2.6.19	AmigaOS 4.0 Solaris 10 11/06
2006-12
2007-01			DragonFly BSD 1.8
2007-02				Linux 2.6.20	Inferno Fourth Edition
2007-03	Windows Server 2003 Service Pack 2			Red Hat Enterprise Linux 5
2007-04				Linux 2.6.21 Ubuntu 7.04 Debian 4.0
2007-05			OpenBSD 4.1	Fedora 7
2002-06
2007-07				Linux 2.6.22 Slackware 12.0
2007-08			DragonFly BSD 1.10		Solaris 10 8/07
2007-09					HP-UX 11i v3
2007-10		Mac OS X v10.5 "Leopard"		Linux 2.6.23 Ubuntu 7.10
2007-11	Windows Home Server		OpenBSD 4.2	Fedora 8 gOS	AIX 6.1,
2007-12			NetBSD 4.0
2008-01				Linux 2.6.24
2008-02	Windows Vista Service Pack 1 Windows Server 2008		DragonFly BSD 1.12 FreeBSD 7.0
2008-03					Singularity 1.1
2008-04	Windows XP Service Pack 3			Linux 2.6.25 Ubuntu 8.04 (LTS)
2008-05			OpenBSD 4.3	Fedora 9 Slackware 12.1	Solaris 10 5/08 OpenSolaris 2008.05 BS2000/OSD v8.0A
2008-06				SUSE Linux 11.0	MorphOS 2.0
2008-07			DragonFly BSD 2.0	Linux 2.6.26
2008-08					STOP 6.5
2008-09					AmigaOS 4.1 z/OS V1R10 MorphOS 2.1
2008-10				Linux 2.6.27 Ubuntu 8.10	Solaris 10 10/08 Android 1.0
2008-11			OpenBSD 4.4	Fedora 10	Singularity 2.0
2008-12				Linux 2.6.28 Slackware 12.2	MorphOS 2.2 OpenSolaris 2008.11
2009-01
2009-02			DragonFly BSD 2.2	Debian 5.0	Android 1.1
2009-03				Linux 2.6.29
2009-04			NetBSD 5.0	Ubuntu 9.04	Android 1.5
2009-05	Windows Vista Service Pack 2		OpenBSD 4.5		Solaris 10 5/09
2009-06				Linux 2.6.30 Fedora 11	AmigaOS 4.1 OpenSolaris 2009.06 Palm webOS
2009-07
2009-08		Mac OS X v10.6 "Snow Leopard"		Slackware 13.0	MorphOS 2.3
2009-09			DragonFly BSD 2.4	Linux 2.6.31	Android 1.6
2009-10	Windows 7 Windows Server 2008 R2		OpenBSD 4.6	Ubuntu 9.10	Solaris 10 10/09 Android 2.0 MorphOS 2.4
2009-11			FreeBSD 8.0	Fedora 12 openSUSE 11.2
2009-12				Linux 2.6.32

2010s

Date	Windows	Mac	BSD	Linux	Others
2010-01					AmigaOS 4.1 Update 1 Android 2.1
2010-02				Linux 2.6.33
2010-03
2010-04			DragonFly BSD 2.6	Ubuntu 10.04 (LTS)	AmigaOS 4.1 Update 2
2010-05			OpenBSD 4.7	Linux 2.6.34 Fedora 13	Android 2.2
2010-06					MorphOS 2.5
2010-07
2010-08				Linux 2.6.35
2010-09					Solaris 10 9/10
2010-10			DragonFly BSD 2.8	Linux 2.6.36 Fedora 14 Ubuntu 10.10	MorphOS 2.5
2010-11			NetBSD 5.1 OpenBSD 4.8
2010-12					Android 2.3 MorphOS 2.5
2011-01				Linux 2.6.37
2011-02	Windows 7 Service Pack 1			Debian 6.0	Android 3.0
2011-03				Linux 2.6.38
2011-04			DragonFly BSD 2.10	Ubuntu 11.04
2011-05			OpenBSD 4.9	Linux 2.6.39 Fedora 15	Android 3.1
2011-06
2011-07		Mac OS X v10.7 "Lion"		Linux 3.0	Android 3.2
2011-08
2011-09
2011-10				Linux 3.1 Ubuntu 11.10	Android 4.0
2011-11			OpenBSD 5.0	Fedora 16	BS2000/OSD 9.0

References

^ Early Electronic Computers (BBC)
^ MIT's first Operating System (1954)
^ EARLY OPERATING SYSTEMS
^ http://www.clock.org/~jss/work/mts/timeline.html
^ Multics History
^ FLEX User Group - History
^ http://www.byte.com/art/9412/sec13/art2.htm
^ Apollo/DOMAIN Computers
^ "A Brief History of RISC OS", Wakefield RISC OS Computer Club, http://www.wrocc.org.uk/riscos/history.shtml, retrieved 2011-11-19
^ "Inferno Downloads", Vita Nuova Holdings, http://www.vitanuova.com/inferno/downloads.html, retrieved 2011-11-19
^ "Microsoft Releases Windows 2000 to Manufacturing", Microsoft News Center, 1999-12-15, http://www.microsoft.com/presspass/press/1999/Dec99/W2KrtmPR.mspx, retrieved 2011-11-19
^ "Plan 9 from Bell Labs Overview", Bell Labs, http://plan9.bell-labs.com/plan9/about.html, retrieved 2011-11-19
^ Balaban, Alexandre (2000) (in French), Test de MorphOS 0.1, http://obligement.free.fr/articles/morphos01.php, retrieved 2011-11-19
^ "Microsoft Announces Immediate Availability Of Windows Millennium Edition (Windows Me)", Microsoft News Center, 2000-09-14, http://www.microsoft.com/Presspass/press/2000/sept00/availabilitypr.mspx, retrieved 2011-11-19
^ Schmidt, Ralph (2001-02-15), New MorphOS 0.4 Release, http://amiga.czex.com/history/2_01e.html, retrieved 2011-11-19
^ Project History, http://haiku-os.org/about/history, retrieved 2011-11-19
^ "Windows XP to Take the PC to New Heights", Microsoft News Center, 2001-08-24, http://www.microsoft.com/presspass/press/2001/aug01/08-24WinXPRTMPR.mspx, retrieved 2011-11-19
^ "Microsoft Unveils Plans for 64-Bit Windows Platform". http://www.microsoft.com/presspass/press/2001/may01/05-2364bitpr.mspx.
^ "Plan 9 From Bell Labs Fourth Release Notes", Bell Labs, April 2002, http://plan9.bell-labs.com/sys/doc/release4.html, retrieved 2011-11-19
^ "What is the history of Syllable?", Frequently Asked Questions, http://web.syllable.org/documentation/FAQ.html#1_2, retrieved 2011-11-19
^ "Jaguar “Unleashed” at 10:20 p.m. Tonight", Apple Inc., 2002-08-23, http://www.apple.com/pr/library/2002/aug/23jaguar.html, retrieved 2011-11-19
^ "Windows XP 64-bit Edition for Itanium systems, Version 2003 Press release", Microsoft News Center, 2003-03-28, http://www.microsoft.com/presspass/press/2003/mar03/03-28WinXP64BitPR.mspx, retrieved 2011-11-19
^ Kernel.org archive, http://www.kernel.org/pub/linux/kernel/v2.6/, retrieved 2011-11-19
^ News digest August 2006, August 2006, http://www.hoise.com/primeur/06/articles/contentsmonthly200608.html, retrieved 2011-11-19

External links

http://www.levenez.com/unix/ — Timeline of UNIX 1969 and its descendants at present
Concise Microsoft O.S. Timeline — A color-coded concise timeline for various Microsoft operating systems (1981–present)
Bitsavers — an effort to capture, salvage, and archive historical computer software and manuals from minicomputers and mainframes of the 50s, 60s, 70s, and 80s
A brief history of operating systems
Microsoft operating system time-line