Operating systems timeline

This article presents a timeline of events in the history of computer Operating system from 1960 to 2003. For a narrative explaining the overall developments, see the related History of computing hardware.

=1960s=

1961

CTSS

1964

OS/360 (announced)

1965

Multics (announced)

OS/360 (shipped)

Tape Operating System (TOS)

1966

DOS/360 (International Business Machines)

MS/8

1967

Airlines Control Program (International Business Machines)

CP/CMS

**Incompatible Timesharing System

WAITS

1969

TOPS-20

Unix

=1970s=

1970

DOS/BATCH 11 (PDP-11)

1971

OS/8

1972

MFT (Operating System)

MVT

RDOS

SVS

VM/CMS

1973

Xerox Alto

RSX-11

RT-11

VME

1974

MVS (MVS/XA)

1976

CP/M

TOPS-20

1978

Apple DOS ( first Apple OS )

TripOS

Virtual Memory System

Lisp Machine (CADR)

1979

PERQ

=1980s=

1980

OS-9

QDOS

SOS (operating system)

Xerox Star ( Xerox Development Environment )

Xenix

1981

MS-DOS

1982

SunOS (1.0)

Ultrix

1983

Apple Lisa

Coherent (operating system)

ProDOS

1984

Mac OS history ( System 1.0 )

QNX

UniCOS

1985

AmigaOS

Atari TOS

MIPS OS

Windows 1.0

1986

AIX operating system

Apple IIgs

HP-UX

1987

Arthur (operating system)

IRIX ( 3.0 is first SGI version )

Minix

OS/2 (1.0)

Windows 2.0

1988

A/UX (Apple Computer)

LynxOS

MVS

OS/400

1989

NEXTSTEP (1.0)

RISC OS

SCO UNIX ( release 3 )

=1990s=

1990

Amiga OS 2.0

BeOS (v1)

OSF/1

1991

Linux

1992

**386BSD 0.1 **Amiga OS 3.0

Solaris Operating Environment ( 2.0 is first not called SunOS )

Windows 3.x

1993

Plan 9 (operating system) (First Edition)

FreeBSD

NetBSD

Windows NT ( First version of NT )

1994

1995

Digital UNIX ( aka Tru64 )

OpenBSD

OS/390

Windows 95

1996

Windows NT 4.0

1997

Inferno (operating system)

Mac OS history ( first officially-named Mac OS )

SkyOS

1998

Windows 98

1999

AROS (Boot for the first time in Stand Alone version)

Mac OS history

=2000s=

2000

AtheOS

Mac OS history

MorphOS

Windows 2000

Windows Me

2001

Amiga OS 4.0 (May 2001)

Mac OS X

Windows XP

Z/OS

2002

Syllable (operating system)

2003

Windows Server 2003

= External links =

http://www.levenez.com/unix/ -- Timeline of UNIX 1969 and its descendants at present