Timeline of operating systems

Short description: none

This template is being used in the wrong namespace. To nominate this talk page for deletion, go to Miscellany for deletion.

This article is being considered for deletion in accordance with Wikipedia's deletion policy.
Please share your thoughts on the matter at this article's entry on the Articles for deletion page.

Feel free to improve the article, but the article must not be blanked, and this notice must not be removed, until the discussion is closed. For more information, particularly on merging or moving the article during the discussion, read the guide to deletion.
Find sources: "Timeline of operating systems" – news · newspapers · books · scholar · JSTOR[[Wikipedia:Articles+for+deletion/Timeline+of+operating+systems]]AFD

|

This article provides a brief timeline for the evolution of operating systems. For a narrative explaining the overall developments, see the History of operating systems.

## Contents

* 1 1940s
* 2 1950s
* 3 1960s
* 4 1970s
* 5 1980s
* 6 1990s
* 7 2000s
* 8 2010s
* 9 2020s
* 10 See also
* 11 References
* 12 External links

## 1940s

* 1949
* EDSAC was an early computer developed by Maurice Wilkes and manufactured by the University of Cambridge

## 1950s

* 1951
* LEO I 'Lyons Electronic Office'[1] was the commercial development of EDSAC computing platform, supported by British firm J. Lyons and Co.
* 1953
* DYSEAC \- an early machine capable of distributing computing
* 1955
* General Motors Operating System made for IBM 701[2]
* MIT's Tape Director operating system made for UNIVAC 1103[3][4]
* 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 704, later IBM 7090 and IBM 7094
* 1958
* EDSAC 2
* 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 demonstration (MIT's Compatible Time-Sharing System for the IBM 7094)
* MCP (Burroughs Master Control Program) for B5000
* 1962
* Atlas Supervisor (Manchester University) (Atlas computer commissioned)
* BBN Time-Sharing System
* GCOS (GE's General Comprehensive Operating System, originally GECOS, General Electric Comprehensive Operating Supervisor)
* 1963
* ADMIRAL[5]
* AN/FSQ-32, another early time-sharing system begun
* CTSS becomes operational (MIT's Compatible Time-Sharing System for the IBM 7094)
* JOSS, an interactive time-shared system that did not distinguish between operating system and language
* Titan Supervisor, early time-sharing system begun
* 1964
* Berkeley Timesharing System (for Scientific Data Systems' SDS 940)
* Chippewa Operating System (for CDC 6600 supercomputer)
* Dartmouth Time-Sharing System (Dartmouth College's DTSS for GE computers)
* EXEC 8 (UNIVAC)
* 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)
* OS/360 (IBM's primary OS for its S/360 series) (announced)
* PDP-6 Monitor (DEC) descendant renamed TOPS-10 in 1970
* SCOPE (CDC 3000 series)
* 1965
* BOS/360 (IBM's Basic Operating System)
* DECsys
* TOS/360 (IBM's Tape Operating System)
* Livermore Time Sharing System (LTSS)
* Multics (MIT, GE, Bell Labs for the GE-645) (announced)
* Pick operating system
* SIPROS 66 (Simultaneous Processing Operating System)[6]
* THE multiprogramming system (Technische Hogeschool Eindhoven) development
* TSOS (later VMOS) (RCA)
* 1966
* Apollo Guidance Computer (AGC)
* DOS/360 (IBM's Disk Operating System)
* GEORGE 1 & 2 for ICT 1900 series
* Mod 1[7]
* Mod 2[8]
* Mod 8[9]
* MS/8 (Richard F. Lary's DEC PDP-8 system)
* MSOS (Mass Storage Operating System)[10]
* OS/360 (IBM's primary OS for its S/360 series) PCP and MFT (shipped)
* RAX
* Remote Users of Shared Hardware (RUSH), a time-sharing system developed by Allen-Babcock for the IBM 360/50
* SODA for Elwro's Odra 1204
* Universal Time-Sharing System (XDS Sigma series)
* 1967
* CP-40, predecessor to CP-67 on modified IBM System/360 Model 40
* CP-67 (IBM, also known as CP/CMS)
* Conversational Programming System (CPS), an IBM time-sharing system under OS/360
* Michigan Terminal System (MTS)[11] (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)
* OS/360 MVT
* ORVYL (Stanford University's time-sharing system for the IBM S/360-67)
* TSS/360 (IBM's Time-sharing System for the S/360-67, never officially released, canceled in 1969 and again in 1971)
* 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)
* B1 (NCR Century series)[12]
* CALL/360, an IBM time-sharing system for System/360
* HP Real-Time Executive (HP RTE) – Hewlett-Packard[13]
* HP Time-Shared BASIC (HP TSB) – Hewlett-Packard[13] (time-sharing system for the HP 2000)
* THE multiprogramming system (Eindhoven University of Technology) publication
* TSS/8 (DEC for the PDP-8)
* VP/CSS
* 1969
* B2 (NCR Century series)[14]
* B3 (NCR Century series)[14]
* GEORGE 3 For ICL 1900 series
* MINIMOP[15]
* Multics (MIT, GE, Bell Labs for the GE-645 and later the Honeywell 6180) (opened for paying customers in October[16])
* RC 4000 Multiprogramming System (RC)
* TENEX (Bolt, Beranek and Newman for DEC systems, later TOPS-20)
* Unics (later Unix) (AT&T, initially on DEC computers)
* Xerox Operating System

## 1970s

* 1970
* DOS-11 (PDP-11)
* 1971
* EMAS
* Kronos
* RSTS-11 2A-19 (First released version; PDP-11)
* RSX-15
* OS/8
* 1972
* B4 (NCR Century series)[14]
* COS-300
* Data General RDOS
* Edos
* MUSIC/SP
* OS/4
* OS 1100
* OS/2000 (Honeywell 2000-series)
* Operating System/Virtual Storage 1 (OS/VS1)
* Operating System/Virtual Storage 2 R1 (OS/VS2 SVS)
* PRIMOS (written in FORTRAN IV, that didn't have pointers, while later versions, around version 18, written in a version of PL/I, called PL/P)
* Virtual Machine/Basic System Extensions Program Product (BSEPP or VM/SE)
* Virtual Machine/System Extensions Program Product (SEPP or VM/BSE)
* Virtual Machine Facility/370 (VM/370), sometimes known as VM/CMS
* 1973
* Эльбрус-1 (Elbrus-1) – Soviet computer – created using high-level language uЭль-76 (AL-76/ALGOL 68)
* Alto OS
* CP-V (Control Program V)
* RSX-11D
* RT-11
* VME – implementation language S3 (ALGOL 68)
* 1974
* ACOS-2 (NEC)
* ACOS-4
* ACOS-6
* CP/M[17]
* DOS-11 V09-20C (Last stable release, June 1974)
* Hydra[18] – capability-based, multiprocessing OS kernel
* MONECS
* Multi-Programming Executive (MPE) – Hewlett-Packard
* Operating System/Virtual Storage 2 R2 (MVS)
* OS/7
* OS/16
* OS/32
* Sintran III
* 1975
* BS2000 V2.0 (First released version)
* COS-350[19]
* ISIS
* NOS (Control Data Corporation)
* OS/3 (Univac)
* VS/9 (formerly RCA's TSOS, later named VMOS)
* Version 6 Unix
* XVM/DOS
* XVM/RSX
* 1976
* Apple I
* Cambridge CAP computer[20] – all operating system procedures written in ALGOL 68C, with some closely associated protected procedures in BCPL
* Cray Operating System
* DX10
* FLEX[21]
* TOPS-20
* TX990/TXDS
* Tandem Nonstop OS v1
* Thoth
* 1977
* 1BSD
* AMOS
* Apple II
* KERNAL
* OASIS operating system
* OS68
* OS4000
* RMX-80
* System 88 (Exec)
* System Support Program (IBM System/34 and System/36)
* TRSDOS
* Virtual Memory System (VMS) V1.0 (Initial commercial release, October 25)
* VRX (Virtual Resource eXecutive)
* VS Virtual Memory Operating System[22]
* 1978
* 2BSD
* Apple DOS
* Control Program Facility (IBM System/38)
* Cray Time Sharing System (CTSS)
* DPCX (IBM)
* DPPX (IBM)
* HDOS
* KSOS[23] – secure OS design from Ford Aerospace
* KVM/370[24] – security retro-fit of IBM VM/370
* Lisp machine (CADR)
* MVS/System Extensions (MVS/SE)
* OS4 (Naked Mini 4)
* PTDOS[25]
* TRIPOS
* UCSD p-System (First released version)
* Z80-RIO
* 1979
* Atari DOS
* 3BSD
* CP-6
* Idris
* MP/M
* MVS/System Extensions R2 (MVS/SE2)
* NLTSS
* POS
* Sinclair BASIC
* Transaction Processing Facility (TPF) (IBM)
* UCLA Secure UNIX[26] – an early secure UNIX OS based on security kernel
* UNIX/32V
* DOS/VSE
* Version 7 Unix

## 1980s

* 1980
* 86-DOS
* AOS/VS (Data General)
* Apple III
* Apple SOS
* Business Operating System
* CTOS[27]
* DOSPLUS (TRS-80)
* MVS/System Product (MVS/SP) V1
* NewDos/80
* OS-9
* RMX-86
* RS-DOS
* SOS
* Virtual Machine/System Product (VM/SP)
* Xenix
* 1981
* Acorn MOS
* Aegis SR1 (First Apollo/DOMAIN systems shipped on March 27[28])
* CP/M-86
* DRX (Distributed Resource Executive)
* iMAX – OS for Intel's iAPX 432 capability machine
* MCS (Multi-user Control System)
* MS-DOS
* PC DOS
* Pilot (Xerox Star operating system)
* UNOS
* UTS
* V
* VERSAdos[29]
* VRTX
* VSOS (Virtual Storage Operating System)[30]
* Xinu first release
* 1982
* Commodore DOS
* LDOS (By Logical Systems, Inc. – for the Radio Shack TRS-80 Models I, II & III)
* PCOS (Olivetti M20)
* pSOS
* QNX
* Stratus VOS[31]
* Sun UNIX (later SunOS) 0.7
* Ultrix
* Unix System III
* VAXELN
* 1983
* Apple III Plus
* Coherent
* DNIX
* EOS
* GNU (project start)
* Lisa Office System 7/7
* LOCUS[32] – UNIX compatible, high reliability, distributed OS
* MVS/System Product V2 (MVS/Extended Architecture, MVS/XA)
* Novell NetWare (S-Net)
* PERPOS
* ProDOS
* RTU (Real-Time Unix)
* STOP[33] – TCSEC A1-class, secure OS for SCOMP hardware
* SunOS 1.0
* VSE/System Package (VSE/SP) Version 1[34]
* 1984
* AMSDOS
* CTIX (Unix variant)
* DYNIX
* Mac OS (System 1.0)
* MSX-DOS
* NOS/VE[35][36]
* PANOS
* PC/IX
* ROS
* Sinclair QDOS
* SINIX
* UNICOS
* Venix 2.0
* Virtual Machine/Extended Architecture Migration Assistance (VM/XA MA)
* 1985
* AmigaOS
* Atari TOS
* DG/UX
* DOS Plus
* Graphics Environment Manager
* Harmony
* IBM TopView
* Mac OS (System 2)
* MIPS RISC/os
* Oberon – written in Oberon
* SunOS 2.0
* Version 8 Unix
* Virtual Machine/Extended Architecture System Facility (VM/XA SF)
* Windows 1.0
* Windows 1.01
* Xenix 2.0
* 1986
* AIX 1.0
* Cronus distributed OS[37]
* FlexOS
* GEMSOS[38] – TCSEC A1-class, secure kernel for BLACKER VPN & GTNP
* GEOS
* Genera 7.0
* HP-UX
* Mac OS (System 3)
* SunOS 3.0
* TR-DOS
* TRIX
* Version 9 Unix
* 1987
* Arthur (much improved version came in 1989 under the name RISC OS)
* BS2000 V9.0
* IRIX (3.0 is first SGI version)
* Mac OS (System 4)
* Mac OS (System 5)
* MDOS
* MINIX 1.0
* OS/2 (1.0)
* PC-MOS/386
* Topaz[39] – semi-distributed OS for DEC Firefly workstation written in Modula-2+ and garbage collected
* VxWorks
* Windows 2.0
* 1988
* A/UX (Apple Computer)
* AOS/VS II (Data General)
* CP/M rebranded as DR-DOS
* Flex machine – tagged, capability machine with OS and other software written in ALGOL 68RS
* GS/OS
* HeliOS 1.0
* KeyKOS – capability-based microkernel for IBM mainframes with automated persistence of app data
* LynxOS
* Mac OS (System 6)
* MVS/System Product V3 (MVS/Enterprise Systems Architecture, MVS/ESA)
* OS/2 (1.1)
* OS/400
* RISC iX
* SpartaDOS X
* SunOS 4.0
* TOPS-10 7.04 (Last stable release, July 1988)
* Virtual Machine/Extended Architecture System Product (VM/XA SP)
* VAX VMM[40] – TCSEC A1-class, VMM for VAX computers (limited use before cancellation)
* Windows 2.1
* 1989
* Army Secure Operating System (ASOS)[41] – TCSEC A1-class secure, real-time OS for Ada applications
* EPOC (EPOC16)
* 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)

## 1990s

* 1990
* AIX 3.0
* AmigaOS 2.0
* BeOS (v1)
* DOS/V
* Genera 8.0
* iS-DOS
* LOCK[42] – TCSEC A1-class secure system with kernel and hardware support for type enforcement
* MVS/ESA SP Version 4
* Novell NetWare 3
* OS/2 1.3
* OSF/1
* RTEMS
* PC/GEOS
* Windows 3.0
* Virtual Machine/Enterprise Systems Architecture (VM/XA ESA)
* VSE/Enterprise Systems Architecture (VSE/ESA) Version 1[43]
* 1991
* Amoeba – microkernel-based, POSIX-compliant, distributed OS
* GNO/ME
* Linux 0.01-0.1
* Mac OS (System 7)
* MINIX 1.5
* PenPoint OS
* RISC OS 3[44]
* SUNMOS
* Trusted Xenix[45] – rewritten & security enhanced Xenix evaluated at TCSEC B2-class
* 1992
* 386BSD 0.1
* Amiga Unix 2.01 (Latest stable release)
* AmigaOS 3.0
* ANDOS (DOS-like operating system for the Electronika BK series computers)
* BSD/386, by BSDi and later known as BSD/OS.
* LGX
* MPE/iX 4.0
* MagiC (as Mag!X or MagiX)
* 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)
* RSTS/E 10.1 (Last stable release, September 1992)
* SLS
* Solaris 2.0 (Successor to SunOS 4.x; based on SVR4 instead of BSD)
* Windows 3.1
* 1993
* IBM 4690 Operating System
* FreeBSD
* NetBSD
* Novell NetWare 4
* Newton OS
* Nucleus RTOS
* Open Genera 1.0
* OS 2200 (Unisys)
* OS/2 2.1
* PTS-DOS
* Slackware 1.0
* Slackware 1.1
* Spring
* Windows Cairo
* Windows Chicago
* Windows NT 3.1 (First Windows NT kernel public release)
* 1994
* AIX 4.0, 4.1
* FreeDOS 2.0
* IBM MVS/ESA SP Version 5
* Linux 1.0.0
* NetBSD 1.0 (First multi-platform release, October 1994)
* OS/2 Warp 3.0
* Red Hat
* RISC OS 3.5
* Slackware 1.2
* Slackware 2.0
* Slackware 2.1
* SPIN – extensible OS written in Modula-3
* Windows NT 3.5
* 1995
* Digital UNIX (aka Tru64 UNIX)
* OpenBSD
* OS/390
* Plan 9 Second Edition (Commercial second release version was made available to the general public.)
* Slackware 2.2
* Slackware 2.3
* Slackware 3.0
* SMSQ/E
* Ultrix 4.5 (Last major release)
* Windows 95

Template:Table vertical alignment

year-month  | Apple | BSD | Linux | Microsoft | others

|
|
|
|
|

1996 (unknown)  |  |  |  |  | RISC OS 3.6[citation needed]
1996-01  |  |  |  |  |
1996-02  |  |  |  |  | OS/2 Warp Server 4.0
1996-03  |  |  |  |  | Palm OS
1996-04  |  |  |  |  |
1996-05  |  |  |  |  | AIX 4.2
1996-06  |  |  | Debian 1.1
Linux 2.0
Slackware 3.1  |  |
1996-07  |  |  |  |  |
1996-08  |  |  |  | Windows NT 4.0 |
1996-09  |  |  |  | Windows NT 4.0 Server  | OS/2 Warp 4.0
1996-10  |  | OpenBSD 2.0  |  |  |
1996-11  |  |  |  | Windows CE 1.0  |
1996-12  |  |  |  |  | JN (microkernel, embedded Java apps)[46]
1997 (unknown)  |  |  |  |  | DR-WebSpyder 1.0
Inferno
MINIX 2.0[citation needed]
Nemesis[47]
RISC OS 3.7[citation needed]
1997-01  | Mac OS 7.6[48] |  |  | Windows Memphis Developer Release  |
1997-02  |  |  | Slackware 3.2  |  |
1997-03  |  |  |  |  |
1997-04  |  |  |  |  |
1997-05  |  |  |  |  |
1997-06  |  |  |  |  | EPOC (EPOC32)
1997-07  | Mac OS 8 |  | Slackware 3.3  |  |
1997-08  |  |  |  |  |
1997-09  |  |  |  | Windows NT 5.0  |
1997-10  |  |  | Slackware 3.4  | Windows CE 2.0 | AIX 4.3
1997-11  |  |  |  |  |
1997-12  |  |  |  |  | SkyOS
1998 (unknown)  |  |  |  |  |
1998-01  |  |  |  |  |
1998-02  |  |  |  |  |
1998-03  |  |  |  |  |
1998-04  |  |  |  |  |
1998-05  |  |  |  |  | DR-WebSpyder 2.0
1998-06  |  |  | Slackware 3.5  | Windows 98 |
1998-07  |  | Junos OS |  |  |
1998-08  |  |  |  |  |
1998-09  |  |  |  |  |
1998-10  |  | FreeBSD 3.0  | Slackware 3.6  |  | Novell NetWare 5
RT-11 5.7 (last stable)
1998-11  |  |  |  |  | Solaris 7 (1st 64-bit)
1998-12  |  |  |  |  |
1999 (unknown)  |  |  |  | Windows Odyssey (not released)  | AROS (1st boot in Stand Alone version)
1999-01
|  |  |  |
1999-02  |  |  |  |  |
1999-03  |  |  |  |  |
1999-04  |  |  |  |  | OS/2 Warp 4.5
1999-05  |  |  | Slackware 3.9
Slackware 4.0  |  |
1999-06  |  |  |  | Windows 98 (2nd edition) |
1999-07  |  |  |  |  | Inferno Second Edition[49]
RISC OS 4
1999-08  |  |  |  |  |
1999-09  |  |  |  |  |
1999-10  | Mac OS 9 |  | Slackware 7.0  |  | Amiga OS 3.5 (unofficial)
1999-11  |  |  |  |  |
1999-12  |  |  |  | Windows Neptune alpha  |

## 2000s

Year–month | Microsoft | Apple | BSD | Linux | Others

|
|
|
|
|

2000–01 |  |  |  |  |
2000–02 | Windows 2000[50] |  |  |  | Solaris 8
2000–03 |  |  | FreeBSD 4.0 | Red Hat Linux 6.2E | AtheOS
BeOS R5
2000–04 | Pocket PC 2000 |  |  |  |
2000–05 |  |  |  |  | MenuetOS
2000–06 | Windows CE 3.0 |  | OpenBSD 2.7 | Slackware 7.1 | Plan 9 Third Edition[51]
2000–07 | Windows 2000 Service Pack 1 |  |  |  | OS/400 V4R5
2000–08 |  |  |  | Debian 2.2 | MorphOS 0.1[52]
2000–09 | Windows Millennium Edition[53] | Mac OS X Public Beta |  | SUSE Linux 7.0 |
2000–10 | Windows Whistler |  |  |  | z/OS
z/VM
MorphOS 0.2
2000–11 |  |  |  |  | Symbian OS v6.0
2000–12 |  |  | NetBSD 1.5
OpenBSD 2.8 |  | AmigaOS 3.9[54]
HP-UX 11i
2001–01 |  | Mac OS 9.1 |  |  |
2001–02 |  |  |  |  | MorphOS 0.4[55]
2001–03 | Windows Triton | Mac OS X Cheetah (v10.0) |  |  |
2001–04 |  |  |  |  |
2001–05 | Windows 2000 Service Pack 2 |  |  |  | AIX 5L 5.1
OS/400 V5R1
2001–06 |  |  | OpenBSD 2.9 |  |
2001–07 |  | Mac OS 9.2 |  | Slackware 8.0 | eComStation 1.0
2001–08 |  |  |  |  | Haiku[56]
2001–09 |  | Mac OS X Puma (v10.1) |  |  |
2001–10 | Pocket PC 2002
Windows XP[57]
Windows XP 64-bit Edition 2002[58] |  |  |  | Novell NetWare 6.0
2001–11 | Xbox |  |  |  | Symbian OS v6.1
2001–12 |  |  | OpenBSD 3.0 |  | OS/2 4.52
2002–01 | Windows CE 4.x |  |  |  | JX microkernel for Java
Sanos microkernel[59] for net appliances
K42 microkernel for NUMA machines
2002–02 |  |  |  |  | Symbian OS v7.0
2002–03 |  |  |  | Red Hat Enterprise Linux 2.1 AS |
2002–04 |  |  |  | SUSE Linux 8.0 | Plan 9 Fourth Edition[60]
2002–05 |  |  | OpenBSD 3.1 |  | Solaris 9 (SPARC)
2002–06 |  |  |  | Slackware 8.1 |
2002–07 |  |  |  | Debian 3.0 | Syllable 0.4.0[61]
2002–08 | Windows 2000 Service Pack 3 | Mac OS X Jaguar[62] (v10.2) |  |  | OS/400 V5R2
2002–09 | Windows XP Service Pack 1 |  | NetBSD 1.6 |  | OS2000
2002–10 |  |  |  |  | AIX 5.2
2002–11 | Windows Blackcomb |  | OpenBSD 3.2 |  | MorphOS 1.0
2002–12 |  |  |  |  | MorphOS 1.1
2003–01 |  |  | FreeBSD 5.0 |  | Solaris 9 (x86)
JNode[63] – JavaOS successor
2003–02 |  |  |  |  | MorphOS 1.2
ReactOS 0.1.0
2003–03 | Windows XP 64-bit Edition 2003[64] |  |  | Slackware 9.0 | MorphOS 1.3
2003–04 | Windows Server 2003 |  |  |  | eComStation 1.1
2003–05 |  |  | OpenBSD 3.3 | Red Hat Enterprise Linux 2.1 ES |
2003–06 | Windows 2000 Service Pack 4
Windows Mobile 2003 |  |  |  | OpenVMS 8.0
2003–07 |  |  |  |  |
2003–08 |  |  |  |  | Novell NetWare 6.5
MorphOS 1.4
2003–09 |  |  |  | Slackware 9.1 | HP-UX 11i v2
2003–10 |  | Mac OS X Panther (v10.3) |  | Red Hat Enterprise Linux 3
SUSE Linux 9.0 |
2003–11 |  |  | OpenBSD 3.4 | Fedora Core 1 |
2003–12 |  |  |  | Linux 2.6.0[65] | XTS-400
2004–01 |  |  |  | Linux 2.6.1 | ReactOS 0.2.0 Roku OS
2004–02 |  |  |  | Linux 2.6.2, 2.6.3 | Symbian OS v8.0
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 |  |  |  | Slackware 10.0 | i5/OS V5R3
ReactOS 0.2.3
2004–07 |  |  | DragonFly BSD 1.0 |  |
2004–08 | Windows CE 5.x
Windows XP Service Pack 2
Windows Longhorn |  |  | Linux 2.6.8 | AIX 5.3
eComStation 1.2
2004–09 | XPize 1.0 |  |  |  | ReactOS 0.2.4
2004–10 |  |  |  | Linux 2.6.9
Ubuntu 4.10 | Symbian OS v8.1
2004–11 |  |  | OpenBSD 3.6 | Fedora Core 3 |
2004–12 | Windows XP Christmas Theme Pack |  | NetBSD 2.0 | Linux 2.6.10 |
2005–01 | XPize 2.1 |  |  |  | Solaris 10
ReactOS 0.2.5
2005–02 | XPize 3.0 |  |  | Red Hat Enterprise Linux 4
Slackware 10.1 | OpenVMS 8.2
z/VSE
Symbian OS v9.1
2005–03 | Windows Server 2003 Service Pack 1
XPize 3.2
Windows XP Professional x64 Edition |  |  | Linux 2.6.11
Novell Open Enterprise Server | MorphOS 1.4.4
2005–04 |  | Mac OS X Tiger (v10.4) | DragonFly BSD 1.2 | Ubuntu 5.04 | ReactOS 0.2.6
MorphOS 1.4.5
2005–05 | Windows Mobile 5.0 |  | 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
MorphOS 1.4.5 Classic
2005–09 | XPize 4.0 |  |  | Slackware 10.2 |
2005–10 |  |  |  | Linux 2.6.14
Ubuntu 5.10
SUSE Linux 10.0 | ReactOS 0.2.8
2005–11 | Xbox 360 |  | FreeBSD 6.0
OpenBSD 3.8 |  |
2005–12 |  |  | NetBSD 3.0 |  | ReactOS 0.2.9
2006–01 | XPize 4.2 |  | DragonFly BSD 1.4 | Linux 2.6.15 | i5/OS V5R4
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
Symbian OS v9.2
2006–07 |  |  | DragonFly BSD 1.6 |  |
2006–08 | XPize 4.5 |  |  |  | BS2000/OSD v7.0[66]
ReactOS 0.3.0
2006–09 | Windows CE 6.0
XPize 4.5.1 |  |  | Linux 2.6.18 | FreeDOS 1.0
OpenVMS 8.3
2006–10 |  |  |  | Fedora Core 6
Ubuntu 6.10
Slackware 11.0 |
2006–11 |  |  | OpenBSD 4.0 | Linux 2.6.19 | AmigaOS 4.0
Solaris 10 11/06
PS3
2006–12 |  |  |  |  |
2007–01 | Windows Vista |  | DragonFly BSD 1.8 | Bharat Operating System Solutions | Symbian OS v9.3
2007–02 | Windows Mobile 6.0 |  |  | Linux 2.6.20 | Inferno Fourth Edition
2007–03 | Windows Server 2003 Service Pack 2
XPize 4.6 |  |  | Red Hat Enterprise Linux 5 | ReactOS 0.3.1
2007–04 |  |  |  | Linux 2.6.21
Ubuntu 7.04
Debian 4.0 |
2007–05 | Windows Vienna | iPhone OS 1 | OpenBSD 4.1 | Fedora Linux 7 |
2007–06 |  |  |  |  |
2007–07 |  |  |  | Linux 2.6.22
Slackware 12.0 |
2007–08 | XPize 4.7 |  | DragonFly BSD 1.10 |  | Solaris 10 8/07
2007–09 |  | iPhone OS 1.1 |  |  | HP-UX 11i v3
ReactOS 0.3.3
2007–10 |  | Mac OS X Leopard (v10.5) |  | Linux 2.6.23
Ubuntu 7.10 | OpenVMS 8.3-1H1
2007–11 | Windows Home Server |  | OpenBSD 4.2 | Fedora Linux 8
gOS | AIX 6.1,
2007–12 |  |  | NetBSD 4.0 |  |
2008–01 |  |  |  | Linux 2.6.24 | ReactOS 0.3.4
Viera 1.0
2008–02 | Windows Vista Service Pack 1
Windows Server 2008 |  | DragonFly BSD 1.12
FreeBSD 7.0 |  |
2008–03 |  |  |  |  | IBM i 6.1
Singularity 1.1
2008–04 | Windows Mobile 6.1
Windows XP Service Pack 3 |  |  | Linux 2.6.25
Ubuntu 8.04 (LTS) |
2008–05 |  |  | OpenBSD 4.3 | Fedora Linux 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 |  | iPhone OS 2 | DragonFly BSD 2.0 | Linux 2.6.26 |
2008–08 |  |  |  |  | STOP 6.5
ReactOS 0.3.6
2008–09 |  | iPhone OS 2.1 |  | Android 1.0 | AmigaOS 4.1
z/OS V1R10
MorphOS 2.1
2008–10 |  |  |  | Linux 2.6.27
Ubuntu 8.10 | Solaris 10 10/08
OKL4 3.0
Symbian OS v9.4
2008–11 | Windows Essential Business Server 2008 R2 | iPhone OS 2.2 | OpenBSD 4.4 | Fedora Linux 10 | Singularity 2.0
Symbian^1
ReactOS 0.3.7
Genode 8.11[67]
2008–12 |  |  |  | Linux 2.6.28
Slackware 12.2 | MorphOS 2.2
OpenSolaris 2008.11
2009–01 | Windows 7 Beta |  |  |  | Viera 1.1
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 Cupcake | ReactOS 0.3.9
2009–05 | Windows Mobile 6.5
Windows Vista Service Pack 2 |  | OpenBSD 4.5 |  | Solaris 10 5/09
2009–06 |  | iPhone OS 3 |  | Linux 2.6.30
Fedora Linux 11
Palm webOS 1 | AmigaOS 4.1
OpenSolaris 2009.06
2009–07 |  |  |  | ChromeOS Announced Edition | ReactOS 0.3.10
2009–08 | XPize 5.0 | Mac OS X Snow Leopard (v10.6) |  | Slackware 13.0 | MorphOS 2.3
Symbian^2
TouchWiz 1.0
TouchWiz 2.0
2009–09 |  | iPhone OS 3.1 | DragonFly BSD 2.4 | Linux 2.6.31
Android Donut |
2009–10 | Windows 7
Windows Server 2008 R2 |  | OpenBSD 4.6 | Ubuntu 9.10
Android Eclair | Solaris 10 10/09
MorphOS 2.4
2009–11 |  |  | FreeBSD 8.0 | Fedora Linux 12
openSUSE 11.2 |
2009–12 |  |  |  | Linux 2.6.32 | ReactOS 0.3.11

## 2010s

Year–month | Microsoft | Apple | BSD | Linux | Others

|
|
|
|
|

2010–01 |  |  |  | Android 2.1 | AmigaOS 4.1 Upd. 1
Viera 1.2
2010–02 |  |  |  | Linux 2.6.33 | Symbian^3
2010–03 |  |  |  |  |
2010–04 |  | iPhone OS 3.2 | DragonFly BSD 2.6 | Ubuntu 10.04 (LTS) | AmigaOS 4.1 Upd. 2
IBM i 7.1
NetCast 1.0
2010–05 |  |  | OpenBSD 4.7 | Linux 2.6.34
Fedora Linux 13
Android Froyo | eComStation 2.0
Bada 1.0
2010–06 |  | iOS 4 |  |  | MorphOS 2.5
OpenVMS 8.4
TouchWiz 3.0
2010–07 |  |  |  | openSUSE 11.3 |
2010–08 |  |  |  | Linux 2.6.35 | MIUI V1
2010–09 |  | iOS 4.1 |  |  | Solaris 10 9/10
AIX 7.1
2010–10 | Windows Phone 7 |  | DragonFly BSD 2.8 | Linux 2.6.36
Fedora Linux 14
Ubuntu 10.10 | MorphOS 2.6
ReactOS 0.3.12
Bada 1.2
MIUI V2
2010–11 |  | iOS 4.2 | NetBSD 5.1
OpenBSD 4.8 | Red Hat Enterprise Linux 6 |
2010–12 |  |  |  | Android Gingerbread | MorphOS 2.7
2011–01 |  |  |  | Linux 2.6.37 | Viera 1.3
NetCast 2.0
2011–02 | Windows 7 Service Pack 1 |  |  | Debian 6.0
Android Honeycomb |
2011–03 | Windows CE 7.0 | iOS 4.3 |  | Linux 2.6.38
openSUSE 11.4 | ReactOS 0.3.13
MIUI V3
2011–04 | Windows Home Server 2011 |  | DragonFly BSD 2.10 | Ubuntu 11.04
Slackware 13.37 | Symbian Anna
TouchWiz 4.0
2011–05 |  |  | OpenBSD 4.9 | Linux 2.6.39
Fedora Linux 15
Android 3.1 | AmigaOS 4.1 Upd. 1 (for Classic)
eComStation 2.1
2011–06 |  | iOS 5 |  | ChromeOS (first shipped) | 9front
2011–07 |  | Mac OS X Lion (v10.7) |  | Linux 3.0
Android 3.2
HP webOS 3 | AmigaOS 4.1 Upd. 3
2011–08 |  |  |  |  | Bada 2.0
2011–09 | Windows Phone 7.5 |  |  |  |
2011–10 |  |  |  | Linux 3.1
Ubuntu 11.10
Android Ice Cream Sandwich |
2011–11 |  |  | OpenBSD 5.0 | Fedora Linux 16
openSUSE 12.1 | Solaris 11 11/11
2011–12 |  |  |  |  | AmigaOS 4.1 Upd. 4
PS Vita
2012–01 |  |  | FreeBSD 9.0 | Linux 3.2 | Viera 1.4
FreeDOS 1.1
MIUI V4
2012–02 |  |  | DragonFly BSD 3.0 |  | ReactOS 0.3.14
Minix 3.2
2012–03 |  | iOS 5.1 |  | Linux 3.3
Android 4.0.4 |
2012–04 |  |  |  | Ubuntu 12.04 (LTS) | Tizen 1.0
2012–05 |  |  | OpenBSD 5.1 | Linux 3.4
Fedora Linux 17 | DexOS
NetCast 3.0
TouchWiz Nature UX
2012–06 |  |  |  |  | BS2000/OSD 9.0
MorphOS 3.0
2012–07 |  | OS X Mountain Lion (v10.8) |  | Linux 3.5
Android Jelly Bean
openSUSE 12.2 | MorphOS 3.1
AmigaOS 4.1 Upd. 5
2012–08 |  |  |  | Firefox OS 1.0 |
2012–09 | Windows Server 2012 | iOS 6 |  | Linux 3.6
Slackware 14.0
Qubes OS |
2012–10 | Windows 8
Windows Phone 8 |  | NetBSD 6.0
OpenBSD 5.2 | Ubuntu 12.10 | Solaris 11.1
Symbian Belle
2012–11 |  |  | DragonFly BSD 3.2 | Android 4.2 | Haiku R1 Alpha 4
2012–12 |  |  | FreeBSD 9.1 |  |
2013–01 |  | iOS 6.1 |  | Fedora Linux 18 | BlackBerry 10
Firefox OS 1.0.1
Viera 1.5
Solaris 10 1/13
2013–02 | Windows Phone 7.8 |  |  | Firefox OS 1.1.0
Firefox OS 2.0.0 | Tizen 2.0
NetCast 4.0
Bada 2.0.6
2013–03 |  |  |  | openSUSE 12.3 | MIUI V5
2013–04 |  |  | DragonFly BSD 3.4 | Linux 3.9
Ubuntu 13.04 | TouchWiz Nature UX 2.0
2013–05 |  |  | NetBSD 6.1
OpenBSD 5.3 | Debian 7.0 | ReactOS 0.3.15
MorphOS 3.2
2013–06 | Windows CE 8.0 (2013) |  |  | Linux 3.10
Firefox OS 1.2.0 |
2013–07 |  |  |  | Fedora Linux 19
Android 4.3 |
2013–08 |  |  |  | Firefox OS 1.1.1 |
2013–09 |  | iOS 7 | FreeBSD 9.2 | Firefox OS 1.3.0
Linux 3.11 | MorphOS 3.3
z/OS Version 2.1
TouchWiz Nature UX 2.5
2013–10 | Windows 8.1
Windows Server 2012 R2 | OS X Mavericks (v10.9) |  | Ubuntu 13.10 |
2013–11 | Xbox One |  | DragonFly BSD 3.6
OpenBSD 5.4 | Slackware 14.1
openSUSE 13.1
Android KitKat
Linux 3.12 | PS4
2013–12 |  |  |  | Fedora Linux 20
Firefox OS 1.2.1
Firefox OS 1.4.0 | MorphOS 3.4
Muen[68] separation kernel
2014–01 |  |  | FreeBSD 10.0 | Linux 3.13 |
2014–02 |  |  |  |  | ReactOS 0.3.16
MorphOS 3.5
2014–03 |  | iOS 7.1 |  | Firefox OS 1.5.0
Linux 3.14 | Viera 1.6
2014–04 | Windows Phone 8.1 |  |  | Ubuntu 14.04 (LTS)
Firefox OS 1.3.0t | Solaris 11.2
TouchWiz Nature UX 3.0
2014–05 |  |  | OpenBSD 5.5 |  |
2014–06 |  |  | DragonFly BSD 3.8 | Linux 3.15
Red Hat Enterprise Linux 7
Firefox OS 2.1.0 | MorphOS 3.6
2014–07 |  |  |  |  |
2014–08 |  |  |  | Linux 3.16 | MorphOS 3.7
NetCast 4.5
MIUI 6
2014–09 |  | iOS 8 |  | Firefox OS 2.2.0 | Minix 3.3
2014–10 |  | OS X Yosemite (v10.10)
iOS 8.1 |  | Ubuntu 14.10
Linux 3.17 | TouchWiz Nature UX 3.5
2014–11 |  |  | OpenBSD 5.6
FreeBSD 10.1
DragonFly BSD 4.0 | openSUSE 13.2
Android Lollipop Android TV Lollipop | IBM i 7.2
ReactOS 0.3.17
2014–12 |  |  |  | Linux 3.18
Fedora Linux 21 | TouchWiz Nature UX 4.0
2015–01 |  |  |  | Firefox OS 2.5.0 | Viera 1.7
2015–02 |  |  |  | Linux 3.19 |
2015–03 |  | iOS 8.2 |  |  | TouchWiz Zero UX
2015–04 |  | iOS 8.3
watchOS 1 |  | Linux 4.0
Firefox Spark v0.1 Debian 8.0
Ubuntu 15.04 | Redox OS
2015–05 |  |  |  | Fedora Linux 22 | BS2000/OSD 10.0
2015–06 |  | iOS 8.4 |  | Linux 4.1 | MorphOS 3.9
2015–07 | Windows 10 (1507) |  |  |  |
2015–08 |  |  | FreeBSD 10.2 | Linux 4.2 | MIUI 7
TouchWiz Noble UX
2015–09 |  | OS X El Capitan (v10.11)
iOS 9
watchOS 2 | NetBSD 7.0 |  | z/OS Version 2.2[69]
2015–10 |  | iOS 9.1
tvOS9 |  | Android Marshmallow
Android TV Marshmallow Ubuntu 15.10
Firefox OS 2.6.0 | AIX 7.2[70]
Solaris 11.3[71]
2015–11 | Windows 10 November Update (1511)
Windows 10 Mobile (1511) | tvOS9.1 |  | Linux 4.3
Fedora Linux 23
openSUSE Leap 42.1 |
2015–12 |  | iOS 9.2
watchOS 2.1
tvOS9.2 |  |  |
2016–01 |  |  |  | Linux 4.4 | Minix 3.4
Viera 1.8
2016–02 |  |  |  |  | ReactOS 0.4
2016–03 |  | iOS 9.3
watchOS 2.2
tvOS9.3 | OpenBSD 5.9
FreeBSD 10.3 | Linux 4.5 | TouchWiz Hero UX
2016–04 |  |  |  | Ubuntu 16.04 | IBM i 7.3
ReactOS 0.4.1
2016–05 |  |  |  | Linux 4.6 |
2016–06 |  |  |  | Slackware 14.2
Fedora Linux 24
Linux Mint 18 | MIUI 8
2016–07 |  |  |  | Linux 4.7 |
2016–08 | Windows 10 Anniversary Update (1607)
Windows 10 Mobile Anniversary Update (1607) |  | DragonFly BSD 4.6 | Android Nougat Android TV Nougat | ReactOS 0.4.2
TouchWiz Grace UX
2016–09 | Windows Server 2016 (1607) | macOS Sierra (v10.12)
iOS 10
watchOS 3
tvOS10 | OpenBSD 6.0 | Linux 4.8 |
2016–10 |  | iOS 10.1
watchOS 3.1 | NetBSD 7.0.2
FreeBSD 11.0 | Android 7.1
Ubuntu 16.10 |
2016–11 |  |  |  | Oracle Linux 7.3
Fedora Linux 25
openSUSE Leap 42.2 | ReactOS 0.4.3
2016–12 |  | iOS 10.2
tvOS10.1 |  | Linux 4.9
Linux Mint 18.1 | FreeDOS 1.2
2017–01 |  |  |  |  | Tizen 3.0
Viera 1.9
2017–02 |  |  |  | Linux 4.10 | ReactOS 0.4.4
2017–03 |  | iOS 10.3
watchOS 3.2
tvOS10.2 | DragonFly BSD 4.8
NetBSD 7.1 |  | KaiOS 1.0
2017–04 | Windows 10 Creators Update (1703)
Windows 10 Mobile Creators Update (1703) |  | OpenBSD 6.1 | Linux 4.11
Ubuntu 17.04 |
2017–05 |  |  |  |  | ReactOS 0.4.5
ArcaOS 5.0.0
Tizen 4.0
2017–06 |  |  |  | Debian 9.0
Fedora Linux 26  |
2017–07 |  |  |  | Linux 4.12
openSUSE Leap 42.3 | BS2000/OSD 11.0
ArcaOS 5.0.1
KaiOS 2.0
2017–08 |  |  |  | Android Oreo Android TV Oreo | MIUI 9
2017–09 |  | macOS High Sierra (v10.13)
iOS 11
watchOS 4
tvOS11 |  | Linux 4.13 | ReactOS 0.4.6
2017–10 | Windows 10 Fall Creators Update (1709)
Windows 10 Mobile Fall Creators Update (1709)
Windows Server 2016 Fall Creators Update (1709) | iOS 11.1
watchOS 4.1
tvOS11.1 | OpenBSD 6.2
DragonFly BSD 5.0 | Ubuntu 17.10 |
2017–11 |  |  |  | Linux 4.14
Fedora Linux 27 | BareMetal 1.0.0
KaiOS 2.5.0
2017–12 |  | iOS 11.2
watchOS 4.2
tvOS11.2 |  | Android 8.1
Android Oreo (Go Edition) | ReactOS 0.4.7
2018–01 | Windows Polaris |  |  | Linux 4.15 | Saphi OS
Viera 2.0
2018–02 |  |  |  |  | ArcaOS 5.0.2
2018–03 |  | iOS 11.3
watchOS 4.3
tvOS11.3 | NetBSD 7.1.2 |  | Genode Sculpt EA
2018–04 | Windows 10 April 2018 Update (1803) |  | OpenBSD 6.3
DragonFly BSD 5.2 | Linux 4.16
Ubuntu 18.04 (LTS) | ReactOS 0.4.8
2018–05 |  | iOS 11.4
tvOS11.4 |  | Fedora Linux 28
openSUSE Leap 15.0 | Tizen 5.0
2018–06 |  |  |  | Linux 4.17 | Genode Sculpt TC
MIUI 10
2018–07 |  |  | NetBSD 8.0 | SUSE Linux Enterprise 15 | ReactOS 0.4.9
KaiOS 2.5.1
2018–08 |  |  | NetBSD 7.2 | Linux 4.18
Android Pie
Android TV Pie
Android Pie (Go Edition) | ArcaOS 5.0.3
Solaris 11.4
2018–09 |  | macOS Mojave (v10.14)
iOS 12
watchOS 5
tvOS12 |  |  | Genode Sculpt VC[72]
2018–10  | Windows 10 October 2018 Update (1809)
Windows Server 2019 (1809)  | iOS 12.1
watchOS 5.1
tvOS12.1  | OpenBSD 6.4  | Linux 4.19
Ubuntu 18.10
Fedora Linux 29  | SerenityOS
2018–11  |  |  |  |  | ReactOS 0.4.10
2018–12  |  |  | DragonFly BSD 5.4
FreeBSD 12.0  | Linux 4.20  | One UI 1.0
KaiOS 2.5.2
2019–01  |  |  |  |  | Viera 2.1
2019–02  |  |  |  |  |
2019–03  |  | iOS 12.2
watchOS 5.2
tvOS12.2  |  | Linux 5.0  | ReactOS 0.4.11 One UI 1.1
2019–04  |  |  |  | Ubuntu 19.04
Fedora Linux 30  |
2019–05  | Windows 10 May 2019 Update (1903)  | iOS 12.3
tvOS12.3  | OpenBSD 6.5

NetBSD 8.1

| Linux 5.1
Red Hat Enterprise Linux 8
openSUSE Leap 15.1  |
2019–06  |  |  | DragonFly BSD 5.6  | SUSE Linux Enterprise 15 SP1  | IBM i 7.4
2019–07  |  | iOS 12.4
watchOS 5.3
tvOS12.4  |  | Debian 10.0
Linux 5.2  | ArcaOS 5.0.4
KaiOS 2.5.3
2019–08  |  |  |  |  |
2019–09  |  | iOS 13
iOS 13.1
iPadOS 13.1
watchOS 6
tvOS13  |  | Linux 5.3
Android 10
Android 10 (Go Edition)  | ReactOS 0.4.12
2019–10  |  | iOS 13.2
iPadOS 13.2
watchOS 6.1
macOS Catalina (v10.15)  | OpenBSD 6.6  | Ubuntu 19.10
Fedora Linux 31  | MIUI 11
2019–11  | Windows 10 November 2019 Update (1909)  |  | FreeBSD 12.1  | Linux 5.4  | One UI 2.0
2019–12  |  | iOS 13.3
iPadOS 13.3  |  | Android TV 10  |

## 2020s

Year–month | Microsoft | Apple | BSD | Linux | Others

|
|
|
|
|

2020–01  |  |  |  | Linux 5.5  | Viera 2.2
2020–02  |  |  | NetBSD 9.0  |  |
2020–03  |  | iOS 13.4
iPadOS 13.4
watchOS 6.2
tvOS13.4  | DragonFly BSD 5.8  | Linux 5.6  |
2020–04  |  |  |  | Ubuntu 20.04
Fedora Linux 32  | ReactOS 0.4.13
MIUI 12
2020–05  | Windows 10 May 2020 Update (2004)
Windows 10X | iOS 13.5
iPadOS 13.5  | OpenBSD 6.7  |  | OpenVMS 9.0

Tizen 6.0

2020–06  |  |  |  | Linux 5.7  | ArcaOS 5.0.5
Haiku R1/beta2
2020–07  |  | iOS 13.6
iPadOS 13.6  |  |  |
2020–08  |  |  |  | Linux 5.8  | ArcaOS 5.0.6

One UI 2.5
KaiOS 2.5.4

2020–09  |  | iOS 13.7
iPadOS 13.7
iOS 14
iPadOS 14.0
watchOS 7.0
tvOS14.0  |  | Android 11
Android TV 11
Android 11 (Go Edition)  |
2020–10  | Windows 10 October 2020 Update (20H2)  | iOS 14.1
iPadOS 14.1  | NetBSD 9.1
OpenBSD 6.8
FreeBSD 12.2  | Linux 5.9
Fedora Linux 33
Ubuntu 20.10  |
2020–11  |  | macOS Big Sur (v11.0)
iOS 14.2
iPadOS 14.2
watchOS 7.1
tvOS14.2  |  |  | PS5
2020–12  |  | macOS Big Sur (v11.1)
iOS 12.5
iOS 14.3
iPadOS 14.3
watchOS 6.3
watchOS 7.2
tvOS14.3  |  | Linux 5.10  | One UI 3.0
MIUI 12.5
2021–01  |  | iOS 14.4
iPadOS 14.4
watchOS 7.3
tvOS14.4  |  |  | Viera 2.3
2021–02  |  | macOS Big Sur (v11.2)  |  |  | One UI 3.1
2021–03  |  |  |  |  | One UI 3.2
2021–04  |  | macOS Big Sur (v11.3)
iOS 14.5
iPadOS 14.5
watchOS 7.4
tvOS14.5  | FreeBSD 13.0  | Fedora Linux 34  |
2021-05  | Windows 10 May 2021 Update (21H1)  | macOS Big Sur (v11.4)
iOS 14.6
iPadOS 14.6
watchOS 7.5
tvOS14.6  | OpenBSD 6.9
DragonFly BSD 6.0
NetBSD 9.2  | Linux 5.12
Ubuntu 21.04  |
2021-06  |  |  |  | Rocky Linux 8
Linux 5.13  | One UI 3.5
2021-07  |  | macOS Big Sur (v11.5)
iOS 14.7
iPadOS 14.7
watchOS 7.6
tvOS14.7  |  |  | Haiku R1/beta3
2021-08  | Windows Server 2022 |  |  | Linux 5.14
Debian 11.11  |
2021-09  |  | macOS Big Sur (v11.6)
iOS 14.8
iPadOS 14.8
iOS 15
iPadOS 15.0
watchOS 8.0
tvOS15.0  |  | KaiOS 3.0
2021-10  | Windows 11 | macOS Monterey (v12.0)
iOS 15.1
iPadOS 15.1
watchOS 8.1
tvOS15.1  | OpenBSD 7.0  | Android 12
Ubuntu 21.10  |
2021-11  | Windows 10 November 2021 Update (21H2)  |  |  | Android TV 12

Fedora Linux 35 One UI 4.0

2021-12  |  | macOS Monterey (v12.2)
iOS 15.2
iPadOS 15.2
watchOS 8.3
tvOS15.2  |  | Android 12 (Go Edition)  | ArcaOS 5.0.7
ReactOS 0.4.14
MIUI 13
2022-01  |  | iOS 15.3
iPadOS 15.3
watchOS 8.4
tvOS15.3  | DragonFly BSD 6.2.1  | Viera 2.4  |
2022-02  |  |  |  | Slackware 15.0  | One UI 4.1
2022-03  |  | macOS Monterey (v12.3)
iOS 15.4
iPadOS 15.4
watchOS 8.5
tvOS15.4  |  | Android 12L  | KaiOS 3.1
2022-04  |  |  | OpenBSD 7.1  | Ubuntu 22.04  |
2022-05  |  | macOS Monterey (v12.4)
iOS 15.5
iPadOS 15.5
watchOS 8.6
tvOS15.5  |  | Fedora Linux 36  | IBM i 7.5

Tizen 7.0

2022-06  |  |  |  | Rocky Linux 9  |
2022-07  |  | macOS Monterey (v12.5)
iOS 15.6
iPadOS 15.6
watchOS 8.7
tvOS15.6  |  |  | One UI 4.5
2022-08  |  |  |  | Android 13
Android 13 (Go Edition)  |
2022-09  | Windows 11 2022 Update (22H2)  | macOS Big Sur (v11.7)
macOS Monterey (v12.6)
iOS 15.7
iPadOS 15.7
iOS 16
watchOS 9.0
tvOS16.0  |  |  |
2022-10  | Windows 10 2022 Update (22H2)  | macOS Ventura (13.0)
iOS 16.1
iPadOS 16.0  | OpenBSD 7.2  | Ubuntu 22.10  | One UI 5.0
2022-11  |  | macOS Ventura (13.0.1)
iOS 16.1.1  |  | Fedora Linux 37  |
2022-12  |  | iOS 16.2  | DragonFly BSD 6.4  | Android TV 13  | Haiku R1/beta4
MIUI 14
2023-01  |  |  |  |  | Viera 2.5
2023-02  |  |  |  |  | One UI 5.1
2023-03  |  |  |  |  |
2023-04  |  |  | OpenBSD 7.3  | Fedora Linux 38
Ubuntu 23.04
2023-05  |  |  |  |  | Tizen 8.0
2023-06  |  |  |  | Debian 12.12  |
2023-07  |  |  |  |  |
2023-08  |  |  |  | Linux 6.5  | ArcaOS 5.1.0
HarmonyOS NEXT beta
2023-09  |  | macOS Sonoma (14.0)
iOS 17.0
iPadOS 17.0  |  |  |
2023-10  | Windows 11 2023 Update (23H2)  |  | OpenBSD 7.4  | Android 14

Ubuntu 23.10

| One UI 6.0

HyperOS 1

2023-11  |  |  | FreeBSD 14.0  | Fedora Linux 39  |
2023-12  |  |  |  | Android 14 (Go Edition)  |
2024-01  |  |  |  |  | One UI 6.1
2024-02  |  |  |  |  |
2024-03  |  |  | NetBSD 10.0  |  |
2024-04  |  |  | OpenBSD 7.5  | Fedora Linux 40
Ubuntu 24.04  |
2024-05  |  |  |  | Android TV 14  | Tizen 9.0
2024-06  |  |  |  |  |
2024-07  |  |  |  |  |
2024-08  |  |  |  |  |
2024-09  |  | macOS Sequoia

(15.0)

iOS 18.0

iPadOS 18

watchOS 11

tvOS 18

|  |  | Haiku R1/beta5
2024-10  | Windows 11 2024 Update (24H2)  | iOS 18.1  | OpenBSD 7.6  | Android 15

Fedora Linux 41

Ubuntu 24.10

| HyperOS 2
2024-11  | Windows Server 2025 |  |  | Linux 6.12  |
2024-12  |  |  |  |  |
2025-01  |  |  |  |  |
2025-02  |  |  |  |  | ArcaOS 5.1.1
2025-03  |  |  |  | Android 15 (Go Edition)  | ReactOS 0.4.15

One UI 7.0

2025-04  |  |  | DragonFly BSD 6.4.1  | Fedora Linux 42

Ubuntu 25.04 Android TV 15

| IBM i 7.6
2025-05  |  |  | DragonFly BSD 6.4.2

OpenBSD 7.7

|  | KaiOS 4.0
2025-06  |  |  |  | Android 16

Android TV 16 Rocky Linux 10

2025-07  |  |  |  |  | One UI 8.0
2025-08  |  |  |  | Debian 13.1  | HyperOS 3
2025-09  |  | macOS Tahoe

(26.0)

iOS 26

iPadOS 26

watchOS 26

tvOS 26

|  |  |
2025-10  | Windows 11 2025 Update (25H2)  |  | OpenBSD 7.8  | Fedora Linux 43

Ubuntu 25.10 Tizen 10.0

2025-11  |  |  |  |  | HarmonyOS 6
2025-12  |  |  | FreeBSD 15.0  |  |
2026-01  | Windows 11 KB5077744  | iOS 26.2.1

iPadOS 26.2.1

|  | Android Open Source Project

Android 16 QPR2 CachyOS

2026-02  | Windows 11 2026 Update (26H1)  | iOS 26.3

iPadOS 26.3

|  | Google Play System  | Genode OS Framework
2026-03  |  | iOS 26.3.1
iPadOS 26.3.1  |  | Android 16 QPR3
AerynOS
HyperOS 3.1
2026–04  |  | iOS 26.4.1
iPadOS 26.4.1
iOS 26.4.2
iPadOS 26.4.2  |  | Fedora Linux 44
Linux 7.0
Ubuntu 26.04
Android AOSP Baseline
ChromeOS Stable  |
2026-05  |  |

* iOS 26.5
* iPadOS 26.5
* macOS Tahoe 26.5
* iOS 26.6 Beta 1

|  |

* Android 16 (Google Pixel Update)
* Android 17
* One UI 9

2026-06  | Windows 11 Secure Boot Migration  |  |  | Android 17 (Stable OTA)  |
2026-07  |  |  |  |  |
2026-08  | Windows 11 2026 Update (26H2)  | Apple Ecosystem  |  | Ubuntu 26.04.1  |
2026-09  |  |

* macOS Golden Gate
* iOS 27
* iPadOS 27
* watchOS 27
* visionOS 27
* tvOS 27

|  | Linux 7.1
Debian 13.1  |
2026-10  |  |  |  | Linux 7.2

Ubuntu 26.10 Fedora Linux 45

2026-11  |  |  |  | openSUSE Leap 16.1

AlmaLinux Rocky Linux 10.1

2026-12  |  |  |  | Linux 7.3  |
2027-01  |  |  |  | Arch Linux 2027.01.01  | Tails 6.11
2027-02  | Windows 11 2027 Update (27H1)  |  |  | Linux 7.4

Android 18 Fedora Linux 46

## 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)

## References

1. ↑ Not Panicking Ltd (January 7, 2012). "h2g2 - Early Electronic Computers - Edited Entry". https://www.bbc.co.uk/dna/h2g2/A1000729.
2. ↑ "Early Operating Systems". http://www.csee.wvu.edu/~jdm/classes/cs258/OScat/early.html.
3. ↑ "LCS/AI Lab Timeline". http://www.csail.mit.edu/timeline/timeline.php/timeline.php?query=event&id=3.
4. ↑ Ross, Douglas (9 January 1986). "A personal view of the personal work station: Some firsts in the Fifties". Proceedings of the ACM Conference on the history of personal workstations. Association for Computing Machinery. pp. 19–48. doi:10.1145/12178.12180. ISBN 0-89791-176-8.
5. ↑ "Honeywell 1800-II: A Large-Scale Scientific Processor". Honeywell. http://www.bitsavers.org/pdf/honeywell/h1800/HONEYWELL_1800-II_A_Large-Scale_Scientific_Processor_1963.pdf.
6. ↑ "CONTROL DATA® 6600 Computer System - Operating System/Reference Manual - SIPROS 66". Control Data Corp.. http://bitsavers.org/pdf/cdc/cyber/cyber_70/sipros/60101800A_SIPROS66ref_1965.pdf.
7. ↑ "Honeywell Series 200 - Summary Description". Honeywell. http://www.bitsavers.org/pdf/honeywell/series200/charlie_gibbs/012_Series_200_Summary_Description.pdf.
8. ↑ "Introduction to Series 200/0perating System - Mod 2". Honeywell. https://bitsavers.org/pdf/honeywell/series200/charlie_gibbs/393_Introduction_to_Operating_System_-_Mod_2.pdf.
9. ↑ "Operating System Orientation for Management - Series 200 Operating System In Review". Honeywell. http://s3data.computerhistory.org/brochures/honeywell.osorientationmgmt.1966.102646090.pdf.
10. ↑ "3100 3200 3300 3500 Computer Systems - Mass Storage Sort/MSOS (Reference Manual)". Control Data Corp.. http://bitsavers.org/pdf/cdc/3x00/24bit/msos/60174100A_3100_3200_3300_3500_Mass_Storage_Sort_MSOS_Sep1967.pdf.
11. ↑ "Michigan Terminal System: Time Line". Clock.org. http://www.clock.org/~jss/work/mts/timeline.html.
12. ↑ "NCR Century series". August 1972. http://www.bitsavers.org/pdf/ncr/NCR_DataPro_Reports/70C-656-01_7208_NCR_Century_Series.pdf.
13. ↑ 13.0 13.1 Todd Poynor (August 1991). "25 Years of Real-Time Computing". http://www.bitsavers.org/pdf/hp/21xx/poyner1.htm.
14. ↑ 14.0 14.1 14.2 "Datapro - NCR Century Series (70C-656-01a Computers)". http://www.bitsavers.org/pdf/ncr/NCR_DataPro_Reports/70C-656-01_7601_NCR_Century_Series.pdf.
15. ↑ "MINIMOP History". https://www.computinghistory.org.uk/det/14944/ICL-1900-Series-MINIMOP-Multiple-On-line-Programming/.
16. ↑ "Multics History". http://www.multicians.org/history.html.
17. ↑ "Digital Research home page". http://www.digitalresearch.biz/CPM.HTM.
18. ↑ Wulf, W.; Cohen, E.; Corwin, W.; Jones, A.; Levin, R.; Pierson, C.; Pollack, F. (June 1974). "HYDRA:The Kernel of a Multiprocessor Operating System". Communications of the ACM 17 (6). doi:10.1145/355616.364017. https://www.cs.virginia.edu/people/faculty/pdfs/p337-wulf.pdf. Retrieved March 26, 2023.
19. ↑ "Time-Sharing Uses Emphasized For DEC Datasystem 350 Series". Computerworld (Computerworld, Inc.). 30 July 1975. https://books.google.com/books?id=jT2fQqJplN8C&pg=PT29. Retrieved 7 March 2023.
20. ↑ Wilkes, M. V.; Needham, R. M. (January 1, 1979). Denning, Peter J.. ed. The Cambridge CAP Computer and Its Operating System. Operating and Programming Systems Series. North Holland. https://www.microsoft.com/en-us/research/publication/the-cambridge-cap-computer-and-its-operating-system/. Retrieved March 26, 2023.
21. ↑ Ian P. Blythe. "FLEX User Group - History". http://www.flexusergroup.com/flexusergroup/fug3.htm.
22. ↑ "Wang - Operating System Services". https://bitsavers.org/pdf/wang/vs/800-1107OS-03_VS_Operating_System_Services_198708.pdf.
23. ↑ "SECURE MINICOMPUTER OPERATING SYSTEM (KSOS)". http://csrc.nist.gov/publications/history/ford78.pdf.
24. ↑ Gold, B. D.; Linde, R. R; Cudney, P. F.. "KVM/370 IN RETROSPECT". http://www.cs.washington.edu/research/projects/poirot3/Oakland/sp/PAPERS/00044538.PDF.
25. ↑ Stan Sokolow, ed. "SOLUS NEWS". http://www.hartetechnologies.com/manuals/Processor Technology/Solus News/proteus_v1n1.pdf.
26. ↑ "CSDL | IEEE Computer Society". https://www.computer.org/csdl/proceedings-article/afips/1979/50870355/12OmNzcPAEy.
27. ↑ "CTOS Revealed". BYTE.com. December 1994. http://www.byte.com/art/9412/sec13/art2.htm.
28. ↑ "Apollo/DOMAIN Computers". http://www.zepa.net/apollo/.
29. ↑ "Byte (magazine)". 1981-06-01. https://vintageapple.org/byte/pdf/198106_Byte_Magazine_Vol_06-06_Operating_Systems.pdf.
30. ↑ Li, Kuo-Cheng; Schwetman, Herb (1983-10-06). "Implemeting a scalar C compiler on the Cyber 205". Purdue University. https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1376&context=cstech.
31. ↑ Green, Paul (20 May 2002). "Stratus Machine History". http://ftp.stratus.com:80/vos/doc/reference/machine_history.txt.
32. ↑ Walker, Bruce; Popek, Gerald; English, Robert; Kline, Charles; Thiel, Greg. The LOCUS Distributed Operating System (PDF) (Technical report). University of California at Los Angeles.
33. ↑ "FINAL EVALUATION REPORTM OFN SCOMP". 1965. http://apps.dtic.mil/dtic/tr/fulltext/u2/a229523.pdf.
34. ↑ "NEW VSE SYSTEM IPO/E 1.4.0 AND VSE/SYSTEM PACKAGE 1.1.0". Announcement Letters. IBM. July 19, 1983. https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/7/897/ENUS283-217/index.html.
35. ↑ "University of Wyoming - Information Technology: About IT: History - The Cyber Era". https://www.uwyo.edu/infotech/aboutit/history/cyber-era.asp.
36. ↑ "Westinghouse & Control Data Corporation - NOS/VE (1984)". Westinghouse. July 17, 2011. https://www.youtube.com/watch?v=HvLlfXZMBXg.
37. ↑ Vinter, S. T. and Schantz, R. E. 1986. The Cronus distributed operating system. In Proceedings of the 2nd Workshop on Making Distributed Systems Work (Amsterdam, Netherlands, September 8–10, 1986). EW 2. ACM, New York, NY, 1-3.
38. ↑ "Final evaluation report". June 28, 1995. http://www.aesec.com/eval/NCSC-FER-94-008.pdf.
39. ↑ Thacker, Charles P.; Stewart, Lawrence C. (1987). Firefly: A Multiprocessor Workstation (PDF) (Technical report). Digital Equipment Corporation — Systems Research Center.
40. ↑ Paul A. Karger; Mary Ellen Zurko; Douglass W. Bonin; Andrew H. Mason; Clifford E. Kahn (November 1991). "A Retrospective on the VAX VMM Security Kernel". IEEE Transactions on Software Engineering 17 (11): 1147–1165. doi:10.1109/32.106971. Bibcode: 1991ITSEn..17.1147K. http://www.cs.dartmouth.edu/~ccpalmer/classes/cs55/Content/resources/vax_vmm.pdf. Retrieved May 2, 2014.
41. ↑ "﻿Quarterly Status Report - Report #1﻿". Advance Computing Systems: An Advanced Reasoning-Based Paradigm for Ada Trusted Systems and its Application to MACH (TRW - Federal Systems Group - Systems Division). 15 March 1989. AD-A206 308. https://apps.dtic.mil/dtic/tr/fulltext/u2/a206308.pdf.
42. ↑ "LOCK-An Historical Perspective". Cyberdefenseagency.com. http://www.cyberdefenseagency.com/publications/LOCK-An_Historical_Perspective.pdf.
43. ↑ "IBM VSE/ENTERPRISE SYSTEMS ARCHITECTURE VERSION 1 RELEASE 1". Announcement Letters. IBM. December 18, 1990. https://www.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/5/897/ENUS290-785/index.html.
44. ↑ "A Brief History of RISC OS", Wakefield RISC OS Computer Club, http://www.wrocc.org.uk/riscos/history.shtml, retrieved 2011-11-19
45. ↑ "EPL Entry CSC-EPL-92/001". http://webapp1.dlib.indiana.edu/virtual_disk_library/index.cgi/1347159/FID1806/epl/entries/csc-epl-92-001.html.
46. ↑ "JN: An Operating System for an Embedded Java Network Computer UCSC-CRL-96-29". http://embedded.soe.ucsc.edu/pubs/tr96-29/html/tr96-29.html.
47. ↑ various 1997 publications listed on the Nemesis website, retrieved 2013-08-13
48. ↑ "Apple Announces Mac OS 7.6; First Milestone". http://product.info.apple.com/pr/press.releases/1997/q2/970107.pr.rel.macos76.html.
49. ↑ "Inferno Downloads", Vita Nuova Holdings, http://www.vitanuova.com/inferno/downloads.html, retrieved 2011-11-19
50. ↑ "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
51. ↑ "Plan 9 from Bell Labs Overview", Bell Labs, http://plan9.bell-labs.com/plan9/about.html, retrieved 2011-11-19
52. ↑ Balaban, Alexandre (2000) (in fr), Test de MorphOS 0.1, http://obligement.free.fr/articles/morphos01.php, retrieved 2011-11-19
53. ↑ "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
54. ↑ "AmigaOS 3.9 release", Amiga History (UK), 2000-12-04, http://www.amigahistory.co.uk/amigaos39.html, retrieved 2012-07-22
55. ↑ Schmidt, Ralph (2001-02-15), New MorphOS 0.4 Release, http://amiga.czex.com/history/2_01e.html, retrieved 2011-11-19
56. ↑ Project History, http://haiku-os.org/about/history, retrieved 2011-11-19
57. ↑ "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
58. ↑ "Microsoft Unveils Plans for 64-Bit Windows Platform". http://www.microsoft.com/presspass/press/2001/may01/05-2364bitpr.mspx.
59. ↑ "Sanos". Jbox.dk. http://www.jbox.dk/sanos/.
60. ↑ "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
61. ↑ "What is the history of Syllable?", Frequently Asked Questions, http://web.syllable.org/documentation/FAQ.html#1_2, retrieved 2011-11-19
62. ↑ "Jaguar "Unleashed" at 10:20 p.m. Tonight", Apple Inc., 2002-08-23, https://www.apple.com/pr/library/2002/aug/23jaguar.html, retrieved 2011-11-19
63. ↑ "Node, an operating system based on Java". 2010. http://2010.rmll.info/IMG/pdf/LSM2010-OS-JNode-2.pdf.
64. ↑ "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
65. ↑ Kernel.org archive, https://www.kernel.org/pub/linux/kernel/v2.6/, retrieved 2011-11-19
66. ↑ News digest August 2006, August 2006, http://www.hoise.com/primeur/06/articles/contentsmonthly200608.html, retrieved 2011-11-19
67. ↑ "Genode - Release notes for the Genode OS Framework 8.11". https://genode.org/documentation/release-notes/8.11.
68. ↑ Muen SK. "Muen | SK for x86/64". Muen.codelabs.ch. https://muen.codelabs.ch/.
69. ↑ "IBM z/OS Version 2 Release 2 Announcement Letter". 28 July 2015. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=ca&infotype=an&supplier=897&letternum=ENUS215-267#availx.
70. ↑ "IBM AIX 7.2 delivers the reliability, availability, performance, and security needed to be successful in the new global economy". 01.ibm.com. October 5, 2015. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=AN&subtype=CA&htmlfid=897/ENUS215-393&appname=USN.
71. ↑ "What's New in Oracle® Solaris 11.3". Docs.oracle.com. 2017-10-03. https://docs.oracle.com/cd/E53394_01/html/E54847/index.html.
72. ↑ "Genode - Genode News". https://genode.org/news/sculpt-with-visual-composition.

## External links

* A brief history of operating systems 1946-2010s
* Bitsavers 1950s-1980s minicomputers and mainframes software and manuals captured, salvaged, and archived
* Operating Systems: Timeline and Family Tree 1951-2026 (1400 OSs)
* UNIX
* UNIX History 1969-2025 and descendants
* Microsoft
* Concise Microsoft O.S. Timeline 1981–2020
* Microsoft operating system time-line 1983-2007

* v
* t
* e

Operating systems

General|

* Advocacy
* Comparison
* Forensic engineering
* History
* Hobbyist development
* List
* Timeline
* Usage share

Kernel|

| Architectures|

* Exokernel
* Hybrid
* Microkernel
* Monolithic
* vkernel
* Rump kernel
* Unikernel

|

Components|

* Device driver
* Loadable kernel module
* Microkernel
* User space

Process management|

| Concepts|

* Context switch
* Interrupt
* IPC
* Process
* Process control block
* Real-time
* Thread
* Time-sharing

|

Scheduling
algorithms|

* Computer multitasking
* Fixed-priority preemptive
* Multilevel feedback queue
* Preemptive
* Round-robin
* Shortest job next

Memory management and
resource protection|

* Bus error
* General protection fault
* Memory protection
* Paging
* Protection ring
* Segmentation fault
* Virtual memory

Storage access and
file systems|

* Boot loader
* Defragmentation
* Device file
* File attribute
* Inode
* Journal
* Partition
* Virtual file system
* Virtual tape library

List|

* Acorn
* Arthur
* ARX
* MOS
* RISC iX
* RISC OS
* Amiga Inc.
* AmigaOS
* AmigaOS 1.0-3.9 (Motorola 68000)
* AmigaOS 4 (PowerPC)
* Amiga Unix, a.k.a. Amix
* Amstrad
* AMSDOS
* Contiki
* SymbOS
* Android
* Apple Inc.
* Apple II family
* Apple III
* Apple DOS
* Apple Lisa
* Apple SOS
* Apple Pascal
* ProDOS
* GS/OS
* GNO/ME
* Contiki
* Apple Macintosh
* Classic Mac OS
* A/UX
* Copland
* MkLinux
* Pink
* Rhapsody
* macOS (formerly Mac OS X and OS X)
* macOS Server (formerly Mac OS X Server and OS X Server)
* Apple Network Server
* Apple MessagePad
* Newton OS
* iPhone and iPod Touch
* iOS (formerly iPhone OS)
* iPad
* iPadOS
* Apple Watch
* watchOS
* Apple TV
* tvOS
* Darwin
* iPod
* iPod software (unnamed embedded OS)
* A/ROSE
* Apollo Computer
* Domain/OS
* Atari
* Atari DOS
* Atari TOS
* Atari MultiTOS
* BAE Systems XTS-400
* Be Inc.
* BeOS
* BeIA
* BeOS r5.1d0
* Bell Labs Non-Unix
* BESYS
* Plan 9 from Bell Labs
* Inferno)
* Burroughs Corporation
* Burroughs MCP
* BSD
* Control Data Corporation
* Chippewa Operating System
* Kronos
* NOS (Network Operating System)
* SCOPE)
* Convergent Technologies Operating System
* Cosmos
* Cromemco
* Cromemco DOS
* Cromix
* Data General
* AOS (for 16-bit)
* DG/UX
* RDOS (Real-time DOS)
* Datapoint (CTOS for Z-80)
* DDC-I Inc.
* HeartOS
* Digital Research, Inc.
* CP/M
* CP/M Plus
* CP/M-68K
* CP/M-8000
* CP/M-86
* CP/M-86 Plus
* Concurrent CP/M
* Concurrent CP/M-86
* Concurrent CP/M 8-16
* Concurrent CP/M-68K
* Concurrent DOS
* Concurrent PC DOS
* Concurrent DOS 8-16
* Concurrent DOS 286
* Concurrent DOS XM
* Concurrent DOS 386
* Concurrent DOS 386/MGE
* Concurrent DOS 68K
* DR-DOS
* FlexOS
* FlexOS 186
* FlexOS 286
* FlexOS 68K
* Multiuser DOS
* Datapac Multiuser DOS
* Datapac System Manager, a derivative of Datapac Multiuser DOS
* IMS Multiuser DOS
* MP/M
* MP/M II
* MP/M-86
* MP/M 8-16
* PalmDOS 1.0
* Personal CP/M
* Digital Equipment Corporation
* Batch-11/DOS-11
* OS/8
* RSTS/E
* RSX-11
* RT-11
* TOPS-10
* TOPS-20
* TENEX
* Digital UNIX
* Ultrix
* VMS
* WAITS
* DOS
* ENEA AB OSE
* Fujitsu Towns OS
* General Electric, Honeywell, Bull
* Real-Time Multiprogramming Operating System
* GCOS
* Multics
* Genode
* GNU
* Google
* Android
* Chromium OS
* Chrome OS
* Goobuntu
* Fuchsia)
* Green Hills Software
* INTEGRITY
* INTEGRITY-178B
* µ-velOSity
* Haiku
* Harmony
* Heathkit, Zenith Data Systems
* HDOS
* HT-11
* Hewlett-Packare
* HP-UX
* Multi-Programming Executive
* Honeywell CP-6
* Huawei Harmony OS
* Intel Corporation
* ISIS
* IBM
* Pre-360
* BESYS
* CTSS
* GM OS & GM-NAA I/O
* IBSYS
* SHARE Operating System
* University of Michigan Executive System (UMES)
* OS/360 and successors
* OS/360 and successors
* MVS
* OS/390
* Phoenix/MVS
* z/OS)
* DOS
* DOS/360 and successors on IBM S/360, S/370, and successor mainframes
* BOS/360
* TOS/360
* DOS/VS
* DOS/VSE
* VSE/SP
* VSE/ESA
* z/VSE)
* VM/CMS
* CP/CMS
* CP-40
* CP-67
* VM/370
* VM/XA
* VM/ESA Virtual Machine
* z/VM)
* TPF line
* Airline Control Program ACP
* Transaction Processing Facility)
* Unix-like
* AIX
* UTS (Mainframe UNIX)
* Linux on z Systems
* Others on IBM S/360, S/370, and successor mainframes
* TSS/360
* MUSIC/SP
* ORVYL and WYLBUR
* IBM PC
* PC DOS
* OS/2
* OS/2 Warp
* eComStation)
* Other hardware
* IBM Series 1
* EDX
* RPS
* CPS
* IBM 1130 DM2
* IBM 1800 MPX & TSX
* IBM 8100
* DPCX
* DPPX)
* System 3 DMS
* IBM System 34, 36, 38
* OS/400
* illumos
* IncludeOS
* iOS
* audioOS
* iPadOS
* tvOS
* Linux
* MINIX
* MorphOS
* MUSIC/SP
* Nemesis
* NeXTSTEP
* NOS
* ORVYL
* OS/2
* OS-9
* OSv
* Pick
* QNX
* ReactOS
* RISC OS
* Solaris
* Tandem
* NonStop
* TPF
* TRIPOS
* Unix
* Visi On
* VS/9
* webOS
* Windows
* Xerox 500 series (530 RTB, 560)
* Xinu
* z/OS

Miscellaneous concepts|

* API
* Computer network
* HAL
* Live CD
* Live USB
* OS shell
* CLI
* GUI
* NUI
* TUI
* VUI
* ZUI
* PXE

* v
* t
* e

Timelines of computing

Computing|

* before 1950
* 1950–1979
* 1980s
* 1990s
* 2000s
* 2010s

Software|

| Open-source software|

* 1970s
* 1980s
* 1990s
* 2000s
* 2010s
* 2020s

|

Programming languages|

Hypertext technology|

Operating systems|

* DOS family
* Windows
* Linux

Virtualization development|

Malware|

Computer science|

* Artificial intelligence
* Quantum computing

Internet|

* Web browsers
* Internet conflicts

Men in computing|

* John Vincent Atanasoff
* Charles Babbage
* John Backus
* George Boole
* Vint Cerf
* John Cocke
* Stephen Cook
* J. Presper Eckert
* David A. Huffman
* Bob Kahn
* Brian Kernighan
* Andrew Koenig
* Donald Knuth
* Joseph Kruskal
* Douglas McIlroy
* John von Neumann
* Dennis Ritchie
* Guido van Rossum
* Bjarne Stroustrup
* Ken Thompson
* Linus Torvalds
* Alan Turing
* Paul Vixie
* Larry Wall
* Stephen Wolfram
* Steve Wozniak

Women in computing|

* Kathleen Antonelli
* Jean Bartik
* Adele Goldstine
* Lois Haibt
* Betty Holberton
* Ada Lovelace
* Margaret Hamilton
* Grace Hopper
* Nancy Leveson
* Marlyn Meltzer
* Klara Dan von Neumann
* Frances Spence
* Ruth Teitelbaum

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Timeline of operating systems. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Software:Timeline_of_operating_systems&oldid=4571754"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template