List of operating systems
 | This article may have too many red links. (November 2018) |
This is a list of operating systems for computers.
The first operating systems
- CTSS (The Compatible TimeShare System, made at MIT by Corbato and others)
- Incompatible Timesharing System (The Incompatible Timeshare System, made at MIT)
- Multics (project by Bell Labs, GE, and MIT)
- Master programme for Leo Computers, Leo III in 1962
- THE operating system (by Dijkstra and others)
The first proprietary computer operating systems
- Apple Computer (first version was firmware with Integer BASIC; later versions had Microsoft BASIC)
- Business Operating System (BOS) - cross platform, text-based
- Commodore PET, Commodore 64, and Commodore VIC-20,
- First IBM-PC had 3 OSes to start, UCSD P-system, CPM-86, PC-DOS
- Flex (by Technical Systems Consultants for Motorola 6800 based computers: SWTPC, Tano, Smoke Signal Broadcasting, Gimix, etc.)
- FLEX9 (by TSC for Motorola 6809 based micros)
- mini-FLEX (by TSC for 5.25" disks on 6800 based machines)
- Sinclair Micro and QX, etc.
- TRS-DOS, ROM OS's (largely Microsoft BASIC implementations with file system extensions)
- TI99-4
Unix-like and other POSIX-ready systems
- AIX (Unix from IBM)
- Amoeba (research OS by Andrew S. Tanenbaum)
- AtheOS (continued with the Syllable code-fork)
- A/UX (Unix Apple OS from start of 1990s)
- BSD (Berkeley Software Distribution, a type of Unix)
- Cromix (Unix-emulating OS from Cromemco)
- Coherent (Unix-emulating OS from Mark Williams Co.)
- DNIX
- Digital UNIX (later, HP's Tru64 for Digital's AXP 64-bit computers)
- FreeBSD (Version of abandoned BSD with free source code)
- GNU/Hurd
- Haiku (operating system)
- HP-UX from HP
- Idris from Whitesmiths
- IRIX from SGI
- LainOS (FreeBSD project, a tried version of "Navi" GUI from Serial Experiments Lain)
- Linux (free Unix-like kernel)
- Minix (educational OS by Andrew S. Tanenbaum in the Netherlands)
- NetBSD (post-CSRG open source type of BSD)
- NeXTSTEP (foundation for OS X)
- OS-9 (not to be confused with Mac OS 9)
- OS-9/68k
- OS-9000 (OS-9 written in C)
- OS/360
- OSF/1
- OS X from Apple Inc.
- OpenBSD (post-CSRG open source type of BSD)
- OPENSTEP NeXTSTEP on Intel x86, HP PA-RISC, and different architectures.
- Plan 9 (by Bell Labs)
- QNX (POSIX, microkernel OS)
- Rhapsody
- RiscOS
- SCO UNIX (from SCO, purchased by Caldera)
- Solaris from Sun Microsystems
- SunOS from Sun Microsystems (became Solaris)
- System V (a release of AT&T Unix, 'SVr4' was the 4th minor release)
- UNIX (OS developed at Bell Labs in 1970 first by Ken Thompson)
- UNIflex (Unix emulating OS by TSC)
- Ultrix (DEC's first version of Unix for VAX, PDP-11, MIPS, and Decstation computers)
- UniCOS from Cray
- Xenix (Microsoft's version of Unix)
- z/OS (IBM mainframe OS)
Generic/commodity, non-UNIX, and other
- AOS, now called Bluebottle(update to Oberon operating system)
- AROS (Amiga Research Operating System)
- Bluebottle (see AOS)
- BS2000 by Siemens AG
- Control Program/Monitor-80 (CPM operating system)
- CP/M-86 (by Digital Research)
- DESQView (windowing GUI for MS-DOS,1985)
- DR-DOS (MS-DOS compatible OS from Digital Research)
- FLEX9 (by TSC)
- FreeDOS (open source, free MS-DOS alternative)
- GEM (GUI for MS-DOS by Digital Research)
- GEOS
- MS-DOS (Microsoft purchased from Seattle Computer)
- MorphOS (by Genesi)
- NetWare (by Novell)
- NeXTStep (Foundation for OS X)
- PC-DOS (IBM's version of MS-DOS)
- Pick
- Plan 9, Inferno (networked OS by Bell Labs)
- Primos by Prime Computer
- Mach (kernel by CMU, used in NeXTStep and OS X)
- MP/M-80 (by Digital Research)
- NewOS
- Oberon operating system (developed at ETH-Zürich by Niklaus Wirth)
- OS/2 Windows/MS-DOS compatible operating system made in a Microsoft and IBM project, but later Microsoft stopped when they wanted to work on Windows NT more; which was better than early Windows versions and MS-DOS.
- OS-9 (Unix emulating OS from Microware)
- OS-9/68k (Unix emulating OS from Microware)
- OS-9000 (portable Unix emulating OS from Microware)
- SSB-DOS (by TSC for Smoke Signal Broadcasting; a variant of FLEX)
- TripOS
- TUNES
- QDOS (made at Seattle Computer Products by Tim Paterson for new Intel 808x CPUs. Given to Microsoft—soon became MS-DOS)
- UCSD P-system (OS by a student project at the University of California, San Diego; directed by Prof Ken Bowles)
- VisiOn (first GUI for early PC machines, not successful)
- Visopsys (hobby OS for PCs)
- VME by International Computers Limited (ICL)
- Randolf by United Computer inc,
- Vision (first GUI for early PC machines, not successful, by Microware)
Hobby OS
Operating systems written for a hobby.
- ReactOS (an open source OS that runs Windows NT applications natively)
- Panalix
- MenuetOS
- SkyOS
Proprietary
Acorn
Amiga
Atari ST
Apple
Be Incorporated
Digital/Compaq/HP
- AIS
- ITS (for the PDP-6 and PDP-10)
- OS-8
- RSTS/E (ran on several machines, chiefly PDP-11s)
- RSX-11 (multi-user, multitasking OS for PDP-11s)
- RT-11 (single user OS for PDP-11)
- TENEX (from BBN)
- TOPS-10 (for the PDP-10)
- TOPS-20 (for the PDP-10)
- VMS (by DEC for the VAX mini-computer type; later renamed OpenVMS)
- WAITS
IBM
- AIX (a version of Unix)
- ALCS
- Basic Operating System (first system released for the System 360, as an interim)
- DOS/VSE
- MFT (later called OV/VS1)
- MVS (latest variant of MVT)
- MVT (later called OV/VS2)
- OS/2
- OS/360 (first OS planned for the System 360 architecture)
- OS/390
- OS/400
- PC-DOS (IBM's version of DOS)
- SVS
- TPF
- VM/CMS
- z/OS
Microsoft
- Xenix
- MS-DOS
- Microsoft Windows
- Windows 1.0x (Mostly text interface organised into windows, because graphical hardware was expensive at the time)
- Windows 2.X
- Windows 3.X
- Windows NT
- Windows NT 4.0
- Windows 9x
- Windows Me
- Windows 2000
- Windows XP (based on code of Windows 2000, was first "non-business" version of Windows NT)
- Windows Server 2003
- Windows Vista
- Windows Server 2008
- Windows 7
- Windows Server 2008 R2
- Windows 8
- Windows Server 2012
- Windows 8.1
- Windows Server 2012 R2
- Windows 10
- Windows Server 2016
- Windows Server 2019
- Windows 11
- Xenix
Personal digital assistants (PDAs)
- EPOC, today is named Symbian OS
- iOS from Apple
- Newton OS from Apple, for Apple Newton MessagePad
- Palm OS from Palm Inc
- Pocket PC from Microsoft
- Windows CE (Windows Compact Edition, from Microsoft)
Microcontroller, embedded
Little operating systems that run on small devices.
Fictional operating systems
Operating systems that have only appeared in fiction or as jokes.
- Lcars - From Star Trek
- ALTIMIT OS - From .hack
- Digitronix - From The Hacker Files
- Hyper OS - From the movie Patlabor
- Penix - Funny word formed from Microsoft Xenix and a not great word
- Wheatonix - April fool's joke.
- GLADOS - Genetic Lifeform and Disk Operating System
- Lex/OS - From DCEU/DCU