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.

1950s

• 1951
  • LEO I 'Lyons Electronic Office' was the commercial development of EDSAC computing platform, supported by British firm J. Lyons and Co.
• 1954
  • DYSEAC - early machine capable of distributing computing
  • MIT's Tape Director operating system made for UNIVAC 1103
• 1955
  • General Motors Operating System made for IBM 701
• 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)
• 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
  • AN/FSQ-32, another early time-sharing system begun
  • Titan Supervisor, early time-sharing system begun
• 1964
  • KDF9 Timesharing Director (English Electric) An early, fully hardware secured, fully pre-emptive process switching, multi-programming operating system for KDF9 (originally announced in 1960)
  • Berkeley Timesharing System (for Scientific Data Systems' SDS 940)
  • Dartmouth Time Sharing System (Dartmouth College's DTSS for GE computers)
  • OS/360 (IBM's primary OS for its S/360 series) (announced)
  • SCOPE (CDC 3000 series)
  • TOPS-10 (DEC, the name TOPS-10 wasn't adopted until 1970)
  • EXEC 8 (UNIVAC)
• 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)
  • Pick operating system
• 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)
  • GEORGE 1 & 2 For ICT 1900 series
• 1967
  • CP-40, predecessor to CP-67 on modified IBM System/360 Model 40
  • CP-67 (IBM, also known as CP/CMS)
  • Michigan Terminal System (MTS) (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)
  • THE multiprogramming system (Eindhoven University of Technology)
  • 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)
  • GEORGE 3 For ICL 1900 series

1970s

• 1970
  • DOS-11 (PDP-11)
• 1971
  • RSTS-11 2A-19 (First released version; PDP-11)
  • OS/8
• 1972
  • Data General RDOS
  • Operating System/Virtual Storage 1 (OS/VS1)
  • Operating System/Virtual Storage 2 R1 (OS/VS2 SVS)
  • Virtual Machine Facility/370 (VM/370), sometimes known as VM/CMS
  • Virtual Machine/Basic Extended Product (BSEPP)
  • Virtual Machine/Extended Product (SEPP)
  • 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
  • Multi-Programming Executive (MPE) – Hewlett-Packard
  • Hydra – capability-based, multiprocessing OS kernel
  • Operating System/Virtual Storage 2 R2 (MVS)
• 1975
  • CP/M
  • BS2000 V2.0 (First released version)
  • Version 6 Unix
• 1976
  • Cambridge CAP computer – All operating system procedures written in ALGOL 68C, with some closely associated protected procedures in BCPL.
  • Cray Operating System
  • FLEX
  • TOPS-20
  • Tandem Nonstop OS v1
• 1977
  • 1BSD
  • KERNAL
  • OASIS operating system
  • TRSDOS
  • Virtual Memory System (VMS) V1.0 (Initial commercial release, October 25)
• 1978
  • 2BSD
  • Apple DOS
  • HDOS
  • TRIPOS
  • UCSD p-System (First released version)
  • Lisp machine (CADR)
  • KVM/370 – security retro-fit of IBM VM/370
  • KSOS – secure OS design from Ford Aerospace
  • MVS/System Extensions (MVS/SE)
• 1979
  • Atari DOS
  • POS
  • NLTSS
  • UNIX/32V
  • Version 7 Unix
  • UCLA Secure UNIX Early secure UNIX OS based on security kernel.
  • MVS/System Extrensions R2 (MVS/SE2)

1980s

• 1980
  • 86-DOS
  • CTOS
  • NewDos/80
  • OS-9
  • SOS
  • MVS/System Product (MVS/SP) V1
  • Virtual Machine/System Product (VM/SP)
  • Xenix
• 1981
  • Acorn MOS
  • Xinu first release
  • Business Operating System
  • Aegis SR1 (First Apollo/DOMAIN systems shipped on March 27)
  • PC DOS
  • Pilot (Xerox Star operating system)
  • MS-DOS
  • UTS
  • iMAX – OS for Intel's iAPX 432 capability machine
• 1982
  • Commodore DOS
  • LDOS (By Logical Systems, Inc. – For the Radio Shack TRS-80 Models I, II & III)
  • QNX
  • Sun UNIX (later SunOS) 0.7
  • Ultrix
  • Stratus VOS
• 1983
  • Lisa Office System 7/7
  • Coherent
  • GNU (project start)
  • Novell NetWare (S-Net)
  • ProDOS
  • SunOS 1.0
  • STOP – TCSEC A1-class, secure OS for SCOMP hardware
  • LOCUS – UNIX compatible, high reliability, distributed OS
  • DNIX
  • MVS/Extended Architecture (MVS/XA)
• 1984
  • Mac OS (System 1.0)
  • MSX-DOS
  • Sinclair QDOS
  • QNX
  • UNICOS
  • Venix 2.0
  • Virtual Machine/Extended Architecture Migration Assistance (VM/XA MA)
• 1985
  • Windows 1.0
  • AmigaOS
  • Atari TOS
  • DG/UX
  • MIPS RISC/os
  • Oberon – written in Oberon
  • SunOS 2.0
  • Version 8 Unix
  • Windows 1.01
  • Xenix 2.0
  • Virtual Machine/Extended Architecture System Facility (VM/XA SF)
• 1986
  • AIX 1.0
  • GS-OS
  • Genera 7.0
  • HP-UX
  • SunOS 3.0
  • GEOS
  • Version 9 Unix
  • GEMSOS – TCSEC A1-class, secure kernel for BLACKER VPN & GTNP
  • Cronus distributed OS
• 1987
  • Topaz – semi-distributed OS for DEC Firefly workstation written in Modula-2+ and garbage collected
  • 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
  • KeyKOS – capability-based microkernel with automated persistence
  • LynxOS
  • CP/M rebranded as DR-DOS
  • Mac OS (System 6)
  • MVS/Enterprise Systems Architecture (MVS/ESA)
  • OS/2 (1.1)
  • OS/400
  • SpartaDOS X
  • SunOS 4.0
  • TOPS-10 7.04 (Last stable release, July 1988)
  • HeliOS 1.0
  • VAX VMM – TCSEC A1-class VMM for VAX computers (limited use before cancellation)
  • Flex machine – tagged, capability machine with OS and other software written in ALGOL 68RS
  • Virtual Machine/Extended Architecture System Product (VM/XA SP)
• 1989
  • EPOC
  • NeXTSTEP (1.0)
  • OS/2 (1.2)
  • 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)
  • ASOS – TCSEC A1-class secure, real-time OS for Ada applications

1990s

• 1990
  • AmigaOS 2.0
  • BeOS (v1)
  • Genera 8.0
  • OS/2 1.3
  • OSF/1
  • AIX 3.0
  • Windows 3.0
  • LOCK – TCSEC A1-class secure system with kernel & hardware support for Type enforcement
  • Virtual Machine/Enterprise Systems Architecture (VM/XA ESA)
• 1991
  • Linux 0.01-0.1
  • Mac OS (System 7)
  • MINIX 1.5
  • PenPoint OS
  • RISC OS 3
  • Trusted Xenix – rewritten & security enhanced Xenix evaluated at TCSEC B2-class
  • Amoeba – microkernel-based, POSIX-compliant, distributed OS
• 1992
  • 386BSD 0.1
  • AmigaOS 3.0
  • Amiga Unix 2.01 (Latest stable release)
  • RSTS/E 10.1 (Last stable release, September 1992)
  • SLS
  • 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)
  • OS/2 2.0 (First i386 32 bit based version)
  • Plan 9 First Edition (First public release was made available to universities)
  • Windows 3.1
  • LGX
• 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
  • OS/2 2.1
  • Slackware 1.0
  • Spring
• 1994
  • AIX 4.0, 4.1
  • OS/2 3.0
  • RISC OS 3.5
  • NetBSD 1.0 (First multi-platform release, October 1994)
  • SPIN – extensible OS written in Modula-3
  • Red Hat
• 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
  • OS/2 4.0
  • Palm OS
  • Debian 1.1
  • JN – microkernel OS for embedded, Java apps
• 1997
  • Inferno
  • Mac OS 8
  • SkyOS
  • MINIX 2.0
  • RISC OS 3.7
  • AIX 4.3
  • Nemesis
• 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
  • OS/2 4.5
  • Windows 98 (2nd edition)
  • Inferno Second Edition (Last distribution (Release 2.3, ca. July 1999) from Lucent's Inferno Business Unit)

2000s

Year-Month	Windows	Mac	BSD	Linux	Others
2000–?					z/OS
2000–?					z/VM
2000–01
2000–02	Windows 2000				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
2000–07
2000–08				Debian 2.2	MorphOS 0.1
2000–09	Windows Millennium Edition			SUSE Linux 7.0
2000–10					z/OS MorphOS 0.2
2000–11
2000–12			NetBSD 1.5 OpenBSD 2.8		AmigaOS 3.9 HP-UX 11i
2001–01
2001–02					MorphOS 0.4
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
2001–09		Mac OS X v10.1 "Puma"
2001–10	Windows XP Windows XP 64-bit Edition 2002				Novell NetWare 6.0
2001–11
2001–12			OpenBSD 3.0		OS/2 4.52
2002–01					JX microkernel for Java Sanos microkernel for net appliances K42 microkernel for NUMA machines
2002–02
2002–03				Red Hat Enterprise Linux 2.1 AS
2002–04				SUSE Linux 8.0	Plan 9 Fourth Edition
2002–05			OpenBSD 3.1		Solaris 9 (SPARC)
2002–06
2002–07				Debian 3.0	Syllable 0.4.0
2002–08		Mac OS X v10.2 "Jaguar"
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) JNode – JavaOS successor
2003–02					MorphOS 1.2 ReactOS 0.1.0
2003–03	Windows XP 64-bit Edition 2003				MorphOS 1.3
2003–04	Windows Server 2003
2003–05			OpenBSD 3.3	Red Hat Enterprise Linux 2.1 ES
2003–06					OpenVMS 8.0
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
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	ReactOS 0.2.1
2004–04				Linux 2.6.5	ReactOS 0.2.2
2004–05			OpenBSD 3.5	Linux 2.6.6 Fedora Core 2
2004–06					ReactOS 0.2.3
2004–07			DragonFly BSD 1.0
2004–08	Windows XP Service Pack 2			Linux 2.6.8	AIX 5.3
2004–09					ReactOS 0.2.4
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 ReactOS 0.2.5
2005–02				Red Hat Enterprise Linux 4	OpenVMS 8.2
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	ReactOS 0.2.6
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	ReactOS 0.2.7
2005–09
2005–10				Linux 2.6.14 Ubuntu 5.10 SUSE Linux 10.0	ReactOS 0.2.8
2005–11			FreeBSD 6.0 OpenBSD 3.8
2005–12			NetBSD 3.0		ReactOS 0.2.9
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 ReactOS 0.3.0
2006–09				Linux 2.6.18	FreeDOS 1.0 OpenVMS8.3
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	Bharat Operating System Solutions
2007–02				Linux 2.6.20	Inferno Fourth Edition
2007–03	Windows Server 2003 Service Pack 2			Red Hat Enterprise Linux 5	ReactOS 0.3.1
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 ReactOS 0.3.3
2007–10		Mac OS X v10.5 "Leopard"		Linux 2.6.23 Ubuntu 7.10	OpenVMS 8.3-1H1
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	ReactOS 0.3.4
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 ReactOS 0.3.5
2008–07			DragonFly BSD 2.0	Linux 2.6.26
2008–08					STOP 6.5 ReactOS 0.3.6
2008–09					AmigaOS 4.1 z/OS V1R10 MorphOS 2.1
2008–10				Linux 2.6.27 Ubuntu 8.10 Android 1.0	Solaris 10 10/08
2008–11			OpenBSD 4.4	Fedora 10	Singularity 2.0 ReactOS 0.3.7
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 ReactOS 0.3.8
2009–03				Linux 2.6.29
2009–04			NetBSD 5.0	Ubuntu 9.04 Android 1.5 ReactOS 0.3.9
2009–05	Windows Vista Service Pack 2		OpenBSD 4.5		Solaris 10 5/09
2009–06				Linux 2.6.30 Fedora 11 Palm webOS 1	AmigaOS 4.1 OpenSolaris 2009.06
2009–07				ReactOS 0.3.10
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 Android 2.0	Solaris 10 10/09 MorphOS 2.4
2009–11			FreeBSD 8.0	Fedora 12 openSUSE 11.2
2009–12				Linux 2.6.32	ReactOS 0.3.11

2010s

Year-Month	Windows	Mac	BSD	Linux	Others
2010–01				Android 2.1	AmigaOS 4.1 Upd. 1
2010–02				Linux 2.6.33
2010–03
2010–04			DragonFly BSD 2.6	Ubuntu 10.04 (LTS)	AmigaOS 4.1 Upd. 2
2010–05			OpenBSD 4.7	Linux 2.6.34 Fedora 13 Android 2.2
2010–06					MorphOS 2.5 OpenVMS 8.4 iOS 4.0
2010–07				openSUSE 11.3
2010–08				Linux 2.6.35
2010–09					Solaris 10 9/10 iOS 4.1 AIX 7.1
2010–10			DragonFly BSD 2.8	Linux 2.6.36 Fedora 14 Ubuntu 10.10	MorphOS 2.6 ReactOS 0.3.12
2010–11			NetBSD 5.1 OpenBSD 4.8	Red Hat Enterprise Linux 6	iOS 4.2
2010–12				Android 2.3	MorphOS 2.7
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 openSUSE 11.4	iOS 4.3 ReactOS 0.3.13
2011–04			DragonFly BSD 2.10	Ubuntu 11.04 Slackware 13.37
2011–05			OpenBSD 4.9	Linux 2.6.39 Fedora 15 Android 3.1	AmigaOS 4.1 Upd. 1 (for Classic)
2011–06				Google Chrome OS (first shipped)	9front iOS 5.0
2011–07		Mac OS X v10.7 "Lion"		Linux 3.0 Android 3.2 HP webOS 3	AmigaOS 4.1 Upd. 3
2011–08
2011–09
2011–10				Linux 3.1 Ubuntu 11.10 Android 4.0
2011–11			OpenBSD 5.0	Fedora 16 openSUSE 12.1	BS2000/OSD 9.0 Solaris 11 11/11
2011–12					AmigaOS 4.1 Upd. 4
2012–01			FreeBSD 9.0	Linux 3.2	FreeDOS 1.1
2012–02			DragonFly BSD 3.0		ReactOS 0.3.14 Minix 3.2
2012–03				Linux 3.3 Android 4.0.4	iOS 5.1
2012–04				Ubuntu 12.04 (LTS)
2012–05			OpenBSD 5.1	Linux 3.4 Fedora 17
2012–06					MorphOS 3.0 iOS 5.1.1
2012–07		Mac OS X v10.8 "Mountain Lion"		Linux 3.5 Android 4.1 openSUSE 12.2	MorphOS 3.1 AmigaOS 4.1 Upd. 5
2012–08
2012–09	Windows Server 2012			Linux 3.6 Slackware 14.0	iOS 6.0
2012–10	Windows 8		NetBSD 6.0 OpenBSD 5.2	Ubuntu 12.10	Solaris 11.1
2012–11			DragonFly BSD 3.2	Android 4.2	Haiku R1 Alpha 4 iOS 6.0.1
2012–12			FreeBSD 9.1		iOS 6.0.2
2013-01				Fedora 18	BlackBerry 10 iOS 6.1 Solaris 10 1/13
2013-02
2013-03				openSUSE 12.3
2013-04			DragonFly BSD 3.4	Linux 3.9 Ubuntu 13.04
2013-05			NetBSD 6.1 OpenBSD 5.3	Debian 7.0	ReactOS 0.3.15 MorphOS 3.2
2013-06				Linux 3.10
2013-07				Fedora 19 Android 4.3
2013-08
2013-09			FreeBSD 9.2	Linux 3.11	iOS 7 MorphOS 3.3 z/OS Version 2.1
2013-10	Windows 8.1 Windows Server 2012 R2	OS X Mavericks (version 10.9)		Ubuntu 13.10
2013-11			DragonFly BSD 3.6 OpenBSD 5.4	Fedora 19 Slackware 14.1 openSUSE 13.1 Android 4.4 Linux 3.12
2013-12				Fedora 20	MorphOS 3.4
2014-01			FreeBSD 10.0	Linux 3.13
2014-02					ReactOS 0.3.16 MorphOS 3.5
2014-03				Linux 3.14
2014-04				Ubuntu 14.04 (LTS)	Solaris 11.2
2014-05			OpenBSD 5.5
2014-06			DragonFly BSD 3.8	Linux 3.15	MorphOS 3.6
2014-07
2014-08				Linux 3.16	MorphOS 3.7
2014-09					Minix 3.3 iOS 8
2014-10		OS X Yosemite (version 10.10)		Ubuntu 14.10 Linux 3.17
2014-11			OpenBSD 5.6 FreeBSD 10.1 DragonFly BSD 4.0	openSUSE 13.2 Android 5.0	ReactOS 0.3.17
2014-12				Linux 3.18
2015-01
2015-02				Linux 3.19
2015-03
2015-04				Linux 4.0 Debian 8.0 Ubuntu 15.04
2015-05
2015-06
2015-07	Windows 10
2015-08			FreeBSD 10.2
2015-09		OS X El Capitan (version 10.11)			z/OS Version 2.2
2015-10				Android 6.0 Ubuntu 15.10
2015-11
2015-12
2016-01

See also

• Comparison of operating systems
• List of operating systems
• Comparison of real-time operating systems
• Timeline of DOS operating systems
• Timeline of Linux distributions (Diagram 1992–2010)

Category links

• Operating systems
• Real-time operating systems
• Embedded operating systems

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 1950s, 1960s, 1970s, and 1980s
• A brief history of operating systems
• Microsoft operating system time-line

• Martin H. Weik, "A Third Survey of Domestic Electronic Digital Computing Systems," Ballistic Research Laboratories Report No. 1115, pg. 234-5, Aberdeen Proving Ground, Maryland, March 1961
• Douglas Ross. 1986. A personal view of the personal work station: some firsts in the Fifties. In Proceedings of the ACM Conference on The history of personal workstations (HPW '86), John R White and Kathi Anderson (Eds.). ACM, New York, NY, USA, 19-48. DOI=10.1145/12178.12180 http://doi.acm.org/10.1145/12178.12180
• https://www.cs.virginia.edu/people/faculty/pdfs/p337-wulf.pdf
• http://research.microsoft.com/pubs/72418/cap.pdf
• http://www.cs.washington.edu/research/projects/poirot3/Oakland/sp/PAPERS/00044538.PDF
• http://csrc.nist.gov/publications/history/ford78.pdf
• http://www.computer.org/csdl/proceedings/afips/1979/5087/00/50870355.pdf
• [1] Archived August 28, 2008 at the Wayback Machine
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