List of operating systems

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This is a list of operating systems.

The first operating systems[change | change source]

The first proprietary microcomputer operating systems[change | change source]

Unix-like and other POSIX-compliant systems[change | change source]

Generic/commodity, non-UNIX, and other[change | change source]

  • AOS, now called Bluebottle (a concurrent and active object update to the 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 (CP/M for Intel 8088/86 from Digital Research)
  • DESQView (windowing GUI for MS-DOS, ca 1985)
  • DR-DOS (MS-DOS compatible OS from Digital Research, later from Novell, Caldera, ..; still being used for special purpose projects)
  • FLEX9 (by TSC for Motorola 6809 based machines; successor to FLEX, which was for Motorola 6800 CPUs)
  • FreeDOS (an open source MS-DOS workalike)
  • GEM (GUI for MS-DOS / DR-DOS from Digital Research)
  • GEOS
  • MS-DOS (OS Microsoft purchased from Seattle Computer to use for IBM PC compatible machines)
  • MorphOS (by Genesi)
  • NetWare (by Novell)
  • NeXTStep (which, more or less, became Mac OS X by NeXT)
  • PC-DOS (IBM's version of MS-DOS for PC machines)
  • Pick (often licensed and renamed)
  • Plan 9, Inferno (networked OS originally from Bell Labs Computer Research)
  • Primos by Prime Computer
  • Mach (from OS kernel research at CMU; see NextStep)
  • MP/M-80 (Multi programming version of CP/M-86 from Digital Research)
  • NewOS
  • Oberon operating system/(developed at ETH-Zürich by Niklaus Wirth et al.) for the Ceres and Chameleon workstation projects. see also Oberon programming language
  • OS/2 (Windows/MS-DOS compatible operating system developed through a joint Microsoft-IBM alliance, but later abandoned by Microsoft when they chose to focus on Windows NT; a considerable technical improvement on both early Windows and MS-DOS. Not a commercial success. The Odin open source project adds Windows 9x compatibility to OS/2. See Sourceforge.com for details)
  • OS-9 (Unix emulating OS from Microware for Motorola 6809 based microcomputers)
  • OS-9/68k (Unix emulating OS from Microware for Morotola 680x0 based computers; developed from OS-9)
  • OS-9000 (portable Unix emulating OS from Microware; one implementation was for Intel x86)
  • SSB-DOS (by TSC for Smoke Signal Broadcasting; a variant of FLEX in most respects)
  • TripOS
  • TUNES
  • QDOS (developed at Seattle Computer Products by Tim Paterson for the new Intel 808x CPUs; also called SCP-DOS; licensed to Microsoft—became MS-DOS/PC-DOS)
  • UCSD P-system (portable complete programming environment/operating system developed by a long running student project at the Univ Calif/San Diego; directed by Prof Ken Bowles; written Pascal)
  • VisiOn (first GUI for early PC machines, not commercially 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 commercially successful)Microware

Hobby OS[change | change source]

Operating systems written for a hobby.

Proprietary[change | change source]

Acorn[change | change source]

Amiga[change | change source]

Atari ST[change | change source]

Apple[change | change source]

Be Incorporated[change | change source]

Digital/Compaq/HP[change | change source]

IBM[change | change source]

Microsoft[change | change source]

Personal digital assistants (PDAs)[change | change source]

Microcontroller, embedded[change | change source]

Little operating systems that run on small devices.

Fictional operating systems[change | change source]

Operating systems that have only appeared in fiction or as jokes.

Related pages[change | change source]