Operating systems can be categorized by technology, ownership, licensing, working state, usage, and by many other characteristics. In practice, many of these groupings may overlap. In computing, an operating system (OS) is the system software responsible for the direct control and management of hardware and basic system operations. ...

Early, and historically important

• CTSS (The Compatible Timeshare System, developed at MIT by Corbato, et al)
• Incompatible Timesharing System (ITS, developed at MIT for the Digital Equipment Corporation PDP-6 and PDP-10 mainframes)
• THE multiprogramming system (by Dijkstra et al.)
• Multics (joint OS development project by Bell Labs, GE, and MIT)
• MCP (developed for Leo Computers, Leo III in 1962)
• RC 4000 Multiprogramming System (developed by Regnecentralen in 1969)
• The Master Program: multi-tasking OS able to run 16 programs simultaneously, used by LEO computers in the early to mid 1960s.

See also: Operating systems timeline CTSS, which stood for the Compatible Time-Sharing System, was one of the first time-sharing operating systems; it was developed at MITs Computation Center. ... “MIT” redirects here. ... ITS, the Incompatible Timesharing System, was an early, revolutionary, and influential MIT time-sharing operating system; it was developed principally by the Artificial Intelligence Laboratory at MIT, with some help from Project MAC. ITS development was initiated in the late 1960s by those (the majority of the MIT AI Lab... The DEC logo Digital Equipment Corporation was a pioneering American company in the computer industry. ... The PDP-6 (Programmed Data Processor-6) was a computer model developed by Digital Equipment Corporation (DEC) in 1963. ... The PDP-10 was a computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s on; the name stands for Programmed Data Processor model 10. It was the machine that made time-sharing common; it looms large in hacker folklore because of its adoption in the 1970s by many... THE is an early computer Operating System, which was designed in 1968. ... Edsger Dijkstra Edsger Wybe Dijkstra (Rotterdam, May 11, 1930 – Nuenen, August 6, 2002; IPA: ) was a Dutch computer scientist. ... Multics (Multiplexed Information and Computing Service) was an extraordinarily influential early time-sharing operating system. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... “GE” redirects here. ... Mapúa Institute of Technology (MIT, MapúaTech or simply Mapúa) is a private, non-sectarian, Filipino tertiary institute located in Intramuros, Manila. ... To meet Wikipedias quality standards, this article may require cleanup. ... The British LEO I (Lyons Electronic Office I) computer, ran its first business application in 1951. ... The RC 4000 Multiprogramming System was an operating system developed for the RC 4000 minicomputer in 1969. ... Regnecentralen, or RC for short, was the first Danish computer company, founded on October 12, 1955. ... The British LEO I (Lyons Electronic Office I) computer, ran its first business application in 1951. ... This article presents a timeline of events in the history of computer operating systems from 1960 to 2006. ...

Early, proprietary microcomputer OS

• Apple Computer Apple DOS (initial version was Read-only memory firmware together with Integer BASIC; later versions included a Microsoft BASIC)
• Business Operating System (BOS) - cross platform, command-line based
• KERNAL (Commodore PET, Commodore VIC-20, Commodore 64 etc.)
• The very first IBM-PC (3 OS offered to start, UCSD p-System, CP/M-86, PC-DOS)
• Sinclair Micro and QX, etc.
• TRS-DOS (largely Microsoft BASIC implementations with file system extensions)
• TI-99/4A
• Flex (by Technical Systems Consultants for Motorola 6800 based microcomputers: SWTPC, Tano, Smoke Signal Broadcasting, Gimix, etc)

Apple Inc. ... Beneath Apple DOS was a popular guide to Apple DOS. Apple DOS refers to operating systems for the Apple II series of microcomputers from 1978 through early 1983. ... Read-only memory (usually known by its acronym, ROM) is a class of storage media used in computers and other electronic devices. ... Integer BASIC, written by Steve Wozniak, was the BASIC interpreter included in ROM on the original Apple II computer at release in 1977, and as such was the first version of BASIC used by many early home computer owners. ... Microsoft BASIC is the foundation product of the Microsoft company. ... This article or section contains information that has not been verified and thus might not be reliable. ... Cross-platform is a term which can refer to computer programs, operating systems, computer languages, programming languages, or other computer software and their implementations which can be made to work on multiple computer platforms. ... The KERNAL is Commodores name for the ROM-resident operating system core in its 8-bit home computers; from the original PET of 1977, via the extended, but strongly related, versions used in its successors; the VIC-20, C64, Plus/4, C16, and C128. ... The PET (Personal Electronic Transactor) was a home-/personal computer produced by Commodore starting in the late 1970s. ... The VIC-20 (Germany: VC-20; Japan: VIC-1001) is an 8-bit home computer. ... C-64 redirects here. ... IBM PC (IBM 5150) with keyboard and green screen monochrome monitor (IBM 5151), running MS-DOS 5. ... The UCSD p-System or UCSD Pascal System was a portable highly machine independent operating system developed in 1978 by the Institute for Information Systems of the University of California, San Diego to provide all students with a common operating system that could run on any of the then available... CP/M-86 was a version of CP/M made for Intel 8086 CPUs. ... IBM PC-DOS was one of the three major operating systems that dominated the personal computer market from about 1985 to 1995. ... Sinclair Research Ltd was a home computer company founded by Sir Clive Sinclair in Cambridge, England. ... TRS-DOS (which stood for the Tandy Radio Shack - Disk Operating System) was the operating system for the Tandy TRS-80 line of 8-bit Z-80 micro-computers that were sold through Radio Shack through the late 1970s and early 1980s. ... The Texas Instruments TI-99/4A was an early home computer, released in June 1981, originally at a price of $525. ... The FLEX operating system was developed by the company TSC for the Motorola 6800 in the 1970s. ... TSC may stand for: Technology Service Corps, a workforce development program for talented youth in the New York city area Technical Systems Consultants a microsomcputer softwre development firm begun by Purdue University graduates in West Lafayette, Indiana, moving to Chapel Hill, North Carolina about 1980; developers of Flex, mini-Flex... Motorola 6800 Microprocessor The 6800 is a microprocessor produced by Motorola and released shortly after the Intel 8080 in 1975. ... The U.S. company SWTPC started in 1964 as DEMCO (Daniel E. Meyer Company). ... Wikipedia does not yet have an article with this exact name. ...

Proprietary

Acorn

• Arthur
• ARX
• MOS (on the BBC Micro and BBC Master)
• RISC OS
• RISC iX (based on 4.3BSD)

A screenshot of Arthurs GUI desktop and its bundled accessory applications Arthur is an early GUI operating System (OS) that was used on Acorn ARM-cpu-based computers from about 1987 until the much-superior RISC OS 2 was completed and made available in April 1989. ... ARX was a Unix-like operating system developed by Acorn Computers Ltd in the UK and at the Acorn Research Centre (ARC) at Palo Alto for their new ARM RISC processors. ... Acorns Machine Operating System is the computer operating system that powers the Acorn BBC computer range: the BBC Micro (MOS 0. ... The BBC Microcomputer System was a series of microcomputers and associated peripherals designed and built by Acorn Computers Ltd for the BBC Computer Literacy Project operated by the British Broadcasting Corporation. ... A BBC Master 128 with monitor and disk drives. ... This article does not cite any references or sources. ... RISC iX was a Unix-like operating system designed to run on the Acorn Archimedes R140, R225 and R260 models. ...

Amiga

• AmigaOS
• Amiga Unix, a.k.a. Amix

AmigaOS is the default native operating system of the Amiga personal computer. ... Commodore-Amiga, Inc. ...

Apollo

• AEGIS/Domain/OS One of the first network-based systems. Ran on Apollo/Domain hardware. Later bought by Hewlett-Packard.

Domain/OS was the operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computers, Inc. ... Apollo/Domain was a range of workstations developed and produced by Apollo Computers, Inc. ... The Hewlett-Packard Company (NYSE: HPQ), commonly known as HP, is a very large, global company headquartered in Palo Alto, California, United States. ...

Apple

• Apple II
  • Apple DOS
  • ProDOS
    • GS/OS
• Apple III
  • SOS (Sophisticated Operating System)
• Lisa OS
• Macintosh
  • Mac OS
    • System Software 1
    • System Software 2
    • System Software 3
    • System Software 4
    • System Software 5
    • System Software 6
    • System 7 (code-named "Big Bang")
    • Mac OS 8
    • Mac OS 9
  • Unix-like
    • A/UX
    • MkLinux
    • Mac OS X
      • Mac OS X v10.0 (aka Mac OS X 10.0 "Cheetah")
      • Mac OS X v10.1 (aka Mac OS X 10.1 "Puma")
      • Mac OS X v10.2 (aka Mac OS X 10.2 "Jaguar")
      • Mac OS X v10.3 (aka Mac OS X 10.3 "Panther")
      • Mac OS X v10.4 (aka Mac OS X 10.4 "Tiger")
      • Mac OS X v10.5 (aka Mac OS X 10.5 "Leopard")
      • Mac OS X Server
    • Darwin (open source underpinnings of MacOS X, based on FreeBSD and NextStep)

The 1977 Apple II, complete with integrated keyboard, color graphics, sound, a plastic BIG HAIRY DICK case, and eight expansion slots. ... Beneath Apple DOS was a popular guide to Apple DOS. Apple DOS refers to operating systems for the Apple II series of microcomputers from 1978 through early 1983. ... For Australian-based Objectivist Prodos Marinakis and the prodos institute, see here. ... In computing, GS/OS is the second operating system developed by Apple Computer for its Apple IIGS computer system. ... The Apple III, an early business machine predating the IBM PC The Apple III with an Apple Monitor //. The Apple III, or Apple /// as it was sometimes styled, was the first completely new computer designed by Apple. ... SOS, which stands for the Sophisticated Operating System, was the computer operating system released in 1980 that was used by the ill-fated Apple III computer. ... Apple Lisa The Apple Lisa was a revolutionary personal computer designed at Apple Computer during the early 1980s. ... For other uses, see Macintosh (disambiguation) and Mac. ... This article relates to both the original Classic Mac OS as well as Mac OS X, Apples more recent operating system. ... Apple marketed its operating system software as Mac OS, beginning in 1997. ... Apple marketed its operating system software as Mac OS, beginning in 1997. ... Apple marketed its operating system software as Mac OS, beginning in 1997. ... Apple marketed its operating system software as Mac OS, beginning in 1997. ... Apple marketed its operating system software as Mac OS, beginning in 1997. ... This article is about the Macintosh operating system version. ... System 7 (codenamed Big Bang) was a version of Mac OS, the operating system of the Apple Macintosh computer. ... Mac OS 8 is a series of versions of the Mac OS that supported a transition through major changes in the Macintosh hardware platform. ... Sherlock 2 for Mac OS 9 with the new metallic appearance Mac OS 9 is the final major release of Apples Classic Mac OS. Introduced on October 23, 1999, Apple positioned it as The Best Internet Operating System Ever, highlighting Sherlock 2s Internet search capabilities, integration with Apple... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... A/UX (from Apple Unix) is Apple Computers implementation of the Unix operating system for some of their Macintosh computers. ... MkLinux is an Open Source Software project, initiated by OSF Research Institute and Apple Computer, in order to port Linux to the PowerPC platform. ... Mac OS X (IPA: ) is a line of graphical operating systems developed, marketed, and sold by Apple Inc. ... Mac OS X version 10. ... Mac OS X version 10. ... Mac OS X version 10. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Mac OS X version 10. ... Mac OS X version 10. ... Mac OS X Server is the server-oriented version of Apples desktop operating system, Mac OS X. Mac OS X, in both desktop and server versions, is a Unix-like operating system based on technology that Apple acquired from NeXT Computer. ... Darwin is a free and open source, Unix-like operating system first released by Apple Inc. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... FreeBSD is a Unix-like free operating system descended from AT&T UNIX via the Berkeley Software Distribution (BSD) branch through the 386BSD and 4. ... NEXTSTEP is the original object-oriented, multitasking operating system that NeXT Computer, Inc. ...

Atari

• Atari DOS (for 8-bit computers)
• Atari TOS (Tramiel Operating System) Tramiel once Owned Commodore Computers
• Atari MultiTOS

Atari DOS, (often just known as DOS), was the disk operating system used with the Atari 8-bit family of computers. ... Atari ST GEM desktop The Operating System (TOS) was the operating system of the Atari ST range of computers. ... MultiTOS was an improved version of TOS for the Atari personal computers. ...

Burroughs (later Unisys)

• BTOS
• MCP (Burroughs Large Systems)

The Convergent Technologies Operating System, also known variously as CTOS, BTOS and STARSYS, was a modular, message-passing, multi-process based operating system. ... To meet Wikipedias quality standards, this article may require cleanup. ...

Convergent Technologies

Later acquired by Unisys. Unisys Corporation (NYSE: UIS), based in Blue Bell, Pennsylvania, United States, and incorporated in Delaware[3], is a global provider of information technology services and solutions. ...

• CTOS

The Convergent Technologies Operating System, also known variously as CTOS, BTOS and STARSYS, was a modular, message-passing, multi-process based operating system. ...

Be Incorporated

• BeOS
  • BeIA
• ZETA (successor of BeOS developed by yellowTAB and now sold by Magnussoft)

BeOS is an operating system for personal computers which began development by Be Inc. ... BeIA, or BeOS for Internet Appliances was a cut down version of Be, Incorporateds BeOS for use on embedded devices. ... Magnussoft ZETA, previously yellowTAB ZETA, is an operating system formerly developed by yellowTAB of Germany based on the BeOS operating system developed by Be Inc. ... yellowTAB is a German software firm that produces an operating system based on BeOS 5. ... Magnussoft GmBH is a german company that develops and sells games for the PC. Recently magnussoft owns now the rights to sell yellowTAB ZETA. And any further development of ZETA is done by an independent developing team. ...

Digital/Tandem Computers/Compaq/HP

• OS/8
• ITS (for the PDP-6 and PDP-10)
• MPE (from HP)
• TOPS-10 (for the PDP-10)
• WAITS
• TENEX (from BBN)
• TOPS-20 (for the PDP-10)
• RSTS/E (multi-user time-sharing OS for PDP-11s)
• RSX-11 (multiuser, multitasking OS for PDP-11s)
• RT-11 (single user OS for PDP-11)
• VMS (originally by DEC, now by HP) for the VAX mini-computer range, Alpha and Intel Itanium 2; later renamed OpenVMS)
• Domain/OS (originally Aegis, from Apollo Computer who were bought by HP)
• RTE HP's Real Time Executive (ran on the HP 1000)
• TSB HP's Time Share Basic (yes, it was an operating system, ran on the HP 2000 series)
• Unix-like
  • Digital UNIX (derived from OSF/1, became HP's Tru64 UNIX)
  • HP-UX
  • Ultrix
• NonStop Kernel (Originally from Tandem Computers for their line of fault-tolerant platforms; originally called Guardian). It supports concurrent execution of:
  • Guardian
  • OSS (POSIX-compliant Open System Services)

OS/8 was the primary operating system used on the Digital PDP-8 minicomputer. ... ITS, the Incompatible Timesharing System, was an early, revolutionary, and influential MIT time-sharing operating system; it was developed principally by the Artificial Intelligence Laboratory at MIT, with some help from Project MAC. ITS development was initiated in the late 1960s by those (the majority of the MIT AI Lab... The PDP-6 (Programmed Data Processor-6) was a computer model developed by Digital Equipment Corporation (DEC) in 1963. ... The PDP-10 was a computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s on; the name stands for Programmed Data Processor model 10. It was the machine that made time-sharing common; it looms large in hacker folklore because of its adoption in the 1970s by many... MPE stands for: the Multi Protocol Encapsulation Method. ... The Hewlett-Packard Company (NYSE: HPQ), commonly known as HP, is a very large, global company headquartered in Palo Alto, California, United States. ... The TOPS-10 System was a computer operating system from Digital Equipment Corporation (DEC) for the PDP-10 released in 1964 and later on for the DEC-System10. ... WAITS was a heavily modified variant of the Digital Equipment Corporations TOPS-10 operating system for the PDP-10 mainframe computer, used at the Stanford Artificial Intelligence Laboratory (SAIL) up until 1990; the mainframe computer it ran on also went by the name of SAIL. There was never an... The TOPS-20 operating system by DEC was the second proprietary OS for the PDP-10. ... BBN might refer to: Bolt, Beranek and Newman, (now known as BBN Technologies), a technology company in Cambridge, Massachusetts, best known for its work on packet switching technology Bible Broadcasting Network, a global Christian radio network headquartered in Charlotte, NC Big Bang nucleosynthesis Big Brother Nigeria, a reality show which... The TOPS-20 operating system by DEC was the second proprietary OS for the PDP-10. ... RSTS/E (an acronym for Resource Sharing Time Sharing Extended) was a multi-user time-shared operating system developed by Digital Equipment Corporation (DEC) for the PDP-11 series of 16-bit minicomputers, and used primarily during the 1970s and 1980s, although some installations were still being upgraded well into... The PDP-11 was a 16-bit minicomputer sold by Digital Equipment Corp. ... RSX-11: A family of real-time operating systems mainly for PDP-11 computers created by Digital Equipment Corporation (DEC), common in the late 1970s and early 1980s, designed for and much used in process control, but also popular for program development. ... RT-11 (for Run Time or Real Time) was a real-time operating system for the DEC PDP-11. ... OpenVMS V7. ... The DEC logo Digital Equipment Corporation was a pioneering American company in the computer industry. ... The Hewlett-Packard Company (NYSE: HPQ), commonly known as HP, is a very large, global company headquartered in Palo Alto, California, United States. ... VAX is a 32-bit computing architecture that supports an orthogonal instruction set (machine language) and virtual addressing (i. ... DEC Alpha AXP 21064 Microprocessor die photo Package for DEC Alpha AXP 21064 Microprocessor Alpha AXP 21064 bare die mounted on a business card with some statistics The DEC Alpha, also known as the Alpha AXP, is a 64-bit RISC microprocessor originally developed and fabricated by Digital Equipment Corp... Itanium 2 logo The Itanium 2 is an IA-64 64-bit microprocessor developed jointly by Hewlett-Packard (HP) and Intel, and introduced on July 8, 2002. ... Domain/OS was the operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computers, Inc. ... This article does not cite its references or sources. ... Radio Telefís Éireann (RTÉ; English: Radio and Television of Ireland) is the national state broadcaster of Ireland. ... TSB may mean: Taranaki Savings Bank Technical Service Bulletin Transportation Safety Board of Canada Trustee Savings Bank The Satanic Bible Category: ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... Tru64 UNIX is HPs (formerly Compaq; formerly DEC) 64-bit Unix operating system for the DEC Alpha AXP platform. ... Tru64 UNIX is HPs (formerly Compaq; formerly DEC) 64-bit Unix operating system for the DEC Alpha AXP platform. ... HP-UX (Hewlett Packard UniX) is Hewlett-Packards proprietary implementation of the Unix operating system, based on System V (initially System III). ... Ultrix (officially all-caps ULTRIX) was the brand name of Digital Equipment Corporations (DEC) native Unix systems. ... Tandem Computers was an early manufacturer of fault tolerant computer systems, marketed to the growing number of transaction processing customers who used them for ATMs, banks, stock exchanges and other similar needs. ...

Green Hills Software

• INTEGRITY Reliable Operating system [1]
• INTEGRITY-178B A DO-178B certified version of INTEGRITY. [2]
• µ-velOSity A lightweight microkernel. [3]

INTEGRITY is a real-time operating system (RTOS) produced and marketed by Green Hills Software. ... INTEGRITY-178B is a royalty-free ARINC ARINC-653-1–compliant real-time operating system (RTOS) manufactured and marketed by Green Hills Software. ... INTEGRITY is a real-time operating system (RTOS) produced and marketed by Green Hills Software. ... μ-velOSity (pronounced Micro-Velocity) is a royalty-free small-footprint real-time microkernel from Green Hills Software made for resource-constrained devices. ... Graphical overview of a microkernel A microkernel is a minimal computer operating system kernel providing only basic operating system services (system calls), while other services (commonly provided by kernels) are provided by user-space programs called servers. ...

Hewlett-Packard

• MPE Multi-programming Executive; ran on HP3000 mini-computers.

MPE stands for: the Multi Protocol Encapsulation Method. ...

Intel

• iRMX real-time operating system originally created to support the Intel 8080 and 8086 processor families in embedded applications; now under exclusive license by Intel to TenAsys Corporation in Beaverton, Oregon; see the iRMX product page for more information.

RMX is a Real-time operating system for the Intel 8080 & 8086. ...

IBM

• IBM 7090/94 IBSYS
• SYSTEM 1400/1800 IJMON A Bootable serial I/O monitor for loading programs.
• BOS/360 Early interim version of DOS/360, briefly available at a few Alpha & Beta System 360 sites.
• TOS/360 Similar to BOS above and more fleeting, able to boot and run from 2x00 series tape drives.
• DOS/360 Disk Operating System. First commonly available OS for System/360 due to problems in the OS/360 Project. Multi-programming system with up to 3 partitions.
• DOS/360/RJE DOS/360 with a control program extension that provided for the monitoring of Remote Job Entry hardware (Card Reader & Printer) connected by dedicated phone lines.
• DOS/VSE First DOS offered on System/370 systems, provided Virtual Storage Extensions, and SNA. Still had fixed size processing partitions, but up to 14 partitions.
• DOS/VSE/ESA DOS/VSE extended virtual memory support to 32 bit addresses (Extended System Architecture).
• z/VSE Latest version of the four decades old DOS lineage. Now supports 64 bit addresses, Multiprocessing, Multiprogramming, SNA, TCP/IP, and some virtual machine features in support of Linux workloads. (All DOS ref. IBM website)
• OS/360 First official OS targeted for the System/360 architecture, saw customer installations of the following variations:
  • PCP Primary Control Program, a kernel and a ground breaking automatic space allocating file system.
  • MFT Multi-Programming Fixed Tasks, had 15 fixed size partitions defined at boot time.
  • MVT Multi-Programming Variable Tasks, had up to 15 partitions defined dynamically.
• RTOS Real Time Operating System, run on 5 NASA custom System/360/75s. A mash up by the Federal Systems Division of the MFT system management, PCP basic kernel and file system, with MVT task management and FSD custom real time kernel extensions and error management. The pinnacle of OS/360 development.
• OS/370 The official port of OS/360 targeted for the System/370 virtual memory architecture. Customer installations in the following variations:
• OS/VS1 Virtual-memory version of OS/MFT
• OS/VS2 Virtual-memory version of OS/MVT
  • SVS Single Virtual Storage (both VS1 & VS2 began as SVS systems)
  • MVS Multiple Virtual Storage (eliminated any need for VS1)
• OS/390 Upgrade to MVS, with an additional Unix-like environment.
• z/OS z/Architecture version of OS/390.
• TPF z/OS extension
• CP/CMS Control Program / Cambridge Monitor System, Virtual Machine operating System for System/360 Model 44 and 67
• VM/CMS Virtual Machine / Conversational Monitor System, VM (operating system) for System/370 with Virtual Memory.
• VM/XA VM (operating system) eXtended Architecture for System/370 with extended Virtual Memory.
• VM/ESA Virtual Machine /Extended System Architecture, added 32 bit addressing to VM series.
• z/VM z/Architecture version of the VM OS (64 bit addressing).
• IBM System/34, 36 System Support Program, or SSP
• OS/400 significant upgrade to SSP
• i5/OS extends OS/400 with significant interoperability features.
• Unix-like
  • AIX (a System V Unix version)
  • AOS (a BSD Unix version)
  • Linux (IBM has contributed much code to this open source operating system, listed below)
• PC-DOS IBM supported, documented, and licensed copies of Microsoft MS-DOS
• OS/2 (developed jointly with Microsoft)
  • OS/2 Warp
  • eComStation (Warp 4.5/Workspace on Demand, rebundled by Serenity Systems International)
• IBM 8100 DPCX
• IBM 8100 DPPX
• K42 PowerPC or Intel x86 based cache-coherent multiprocessor systems (IBM Website)

IBSYS was the tape based operating system that IBM supplied with its IBM 7090 and IBM 7094 computers. ... This article or section does not cite its references or sources. ... TOS/360 (Tape Operating System/360) was an IBM operating system for the System/360, used in the early days around 1965 to support the IBM 360 model 30 and similar platforms. ... DOS/360 was the operating system announced by IBM at the low end for the System/360 in 1964 and delivered in 1965 or 1966. ... VSE (Virtual Storage Extended) is an operating system on the IBM System/370 and System/390 mainframe computers. ... VSE (Virtual Storage Extended) is an operating system on the IBM System/370 and System/390 mainframe computers. ... OS/360 was a batch processing operating system developed by IBM for their then-new System/360 mainframe computer, announced in 1964. ... MFT may stand for: Multiprogramming with a Fixed number of Tasks operating system Marriage and Family Therapist Mean field theory Master File Table, an integral component of the NTFS file system. ... MVT is an acronym for Multiprogramming with a Variable number of Tasks. ... MVS (Multiple Virtual Storage) was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. ... OS/390 is an IBM operating system for the System/370 and System/390 IBM mainframe computers. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... z/OS Welcome Screen seen through a terminal emulator The title of this article begins with a capital letter due to technical limitations. ... z/Architecture (formerly known as ESAME) refers to IBMs 64-bit computing architecture for its top-of-the-line enterprise servers. ... For other meanings of TPF, see TPF (disambiguation). ... z/OS Welcome Screen seen through a terminal emulator The title of this article begins with a capital letter due to technical limitations. ... CP/CMS was a remarkable time-sharing operating system of the late 60s and early 70s, known for its excellent performance and advanced features. ... In computer science, a virtual machine is software that creates a virtualized environment between the computer platform and its operating system, so that the end user can operate software on an abstract machine. ... VM/CMS (Virtual Machine/Conversational Monitor System, originally called CP/CMS when it first appeared) is a bundled pair of operating systems used on IBM System/360, System/370, System/390, zSeries, and System z9 mainframes (and compatible systems). ... In computer science, a virtual machine is software that creates a virtualized environment between the computer platform and its operating system, so that the end user can operate software on an abstract machine. ... VM is an early and influential virtual machine operating system from IBM, apparently the first true virtual machine system. ... VM is an early and influential virtual machine operating system from IBM, apparently the first true virtual machine system. ... In computer science, a virtual machine is software that creates a virtualized environment between the computer platform and its operating system, so that the end user can operate software on an abstract machine. ... VM is an early and influential virtual machine operating system from IBM, apparently the first true virtual machine system. ... This article does not cite any references or sources. ... OS/400 is an operating system used on IBMs line of AS/400 (now called iSeries) minicomputers. ... OS/400 is an operating system used on IBMs line of AS/400 (now called iSeries) minicomputers. ... OS/400 is an operating system used on IBMs line of AS/400 (now called iSeries) minicomputers. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... AIX (Advanced Interactive eXecutive) is a proprietary operating system developed by IBM based on UNIX System V. Before the product was ever marketed, the acronym AIX originally stood for Advanced IBM UNIX. The scalable AIX 5L 5. ... Academic Operating System (AOS) was IBMs version of 4. ... This article is about operating systems that use the Linux kernel. ... IBM PC-DOS was one of the three major operating systems that dominated the personal computer market from about 1985 to 1995. ... Microsofts disk operating system, MS-DOS, was Microsofts implementation of DOS, which was the first popular operating system for the IBM PC, and until recently, was widely used on the PC compatible platform. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... eComStation is a PC operating system based on OS/2, published by Serenity Systems International, USA. It includes several additions and accompanying software. ... DPCX (Distributed Processing Control eXecutive) was an operating system for the IBM 8100. ... Distributed Processing Programming Executive was an operating system introduced by IBM, pre-installed on selected computer models in the 80s. ... K42 is an open-source research operating system for cache-coherent 64-bit multiprocessor systems. ...

Macrosnet

• MyBoss (First version currently in development.)

Micrium

• MicroC/OS-II (Small pre-emptive priority based multi-tasking kernel)

MicroC/OS-II (commonly termed µC/OS-II or uC/OS-II), is a low-cost priority-based pre-emptive real time multitasking operating system kernel for microprocessors, written mainly in the C programming language. ...

Microsoft

• Xenix (licensed version of Unix; sold to SCO in '90s)
• MSX-DOS (developed by MS Japan for the MSX 8-bit computer)
• MS-DOS (developed jointly with IBM, versions 1.0–6.22)
• Windows CE (OS for handhelds, embedded devices, and real-time applications that is similar to other versions of Windows)
  • Windows CE 3.0
  • Windows Mobile (based on Windows CE, but for a smaller form factor)
  • Windows CE 5.0
• Microsoft Windows
  • Windows 1.0
  • Windows 2.0
  • Windows 3.0 (the first version to make substantial commercial impact)
  • Windows 3.1x
  • Windows 3.2 (Chinese-only release)
  • Windows 95 (aka Windows 4.0)
  • Windows 98 (aka Windows 4.1)
  • Windows 98 Second Edition (often shortened to Windows 98 SE) (aka Windows 4.2)
  • Windows Millennium Edition (often shortened to Windows Me) (aka Windows 4.9, not 4.3 due to the version number)
• OS/2 (developed jointly with IBM)
• Windows NT
  • Windows NT 3.1
  • Windows NT 3.5
  • Windows NT 3.51
  • Windows NT 4.0
  • Windows 2000 (aka Windows NT 5.0)
  • Windows XP (aka Windows NT 5.1) (codename: Whistler)
  • Windows Server 2003 (aka Windows NT 5.2)
  • Windows Vista (aka Windows NT 6.0) (codename: Longhorn)
  • Windows Server 2008 (Uses Windows NT 6.0 base)(codename: Longhorn Server)
  • Windows Fundamentals for Legacy PCs
  • Windows 7 (previously codenamed Blackcomb, then Vienna)
• WinPE

Xenix was a version of the Unix operating system, licensed by Microsoft from AT&T in the late 1970s. ... MSX official logo Sony MSX 1, Model HitBit-10-P MSX is the name of a standard for home computers in the 1980s. ... Microsofts disk operating system, MS-DOS, was Microsofts implementation of DOS, which was the first popular operating system for the IBM PC, and until recently, was widely used on the PC compatible platform. ... Windows CE (sometimes abbreviated WinCE) is a variation of Microsofts Windows operating system for minimalistic computers and embedded systems. ... Microsoft Windows CE 3. ... Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices based on the Microsoft Win32 API. Devices which run Windows Mobile include Pocket PCs, Smartphones, and Portable Media Centers. ... It has been suggested that this article or section be merged into Windows CE. (Discuss) Windows CE 5. ... Windows redirects here. ... Windows 1. ... Windows 2. ... Windows 3. ... This article does not cite any references or sources. ... Windows 95 is a consumer-oriented graphical user interface-based operating system. ... Windows 98 (codenamed Memphis) is a graphical operating system released on June 25, 1998 by Microsoft and the successor to Windows 95. ... Windows 98SE Desktop Windows 98 (codename Memphis) is a graphical operating system released on June 25, 1998 by the Microsoft Corporation. ... Windows Millennium Edition (originally codenamed Millennium), also known as Windows Me, is a 16-bit/32-bit graphical operating system released on September 14, 2000 by Microsoft. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Windows NT (New Technology) is a family of operating systems produced by Microsoft, the first version of which was released in July 1993. ... Windows NT 3. ... Windows NT 3. ... Windows NT 3. ... Windows NT 4. ... Windows 2000 (also referred to as Win2K) is a preemptive, interruptible, graphical and business-oriented operating system that was designed to work with either uniprocessor or symmetric multi-processor 32-bit Intel x86 computers. ... Windows XP is a line of operating systems developed by Microsoft for use on general-purpose computer systems, including home and business desktops, notebook computers, and media centers. ... Windows Server 2003 is a server operating system produced by Microsoft. ... Windows Vista is a line of graphical operating systems used on personal computers, including home and business desktops, notebook computers, Tablet PCs, and media centers. ... Windows Server 2008 is the name of the next server operating system from Microsoft. ... Windows Fundamentals for Legacy PCs (WinFLP) is an operating system from Microsoft, based on Windows XP, but optimized for older, less powerful hardware. ... Windows 7 (formerly codenamed Blackcomb and then Vienna) is a future version of Microsoft Windows. ... WinPE is an acronym that stands for Windows Preinstallation Environment. It is a light-weight version of Windows XP/Windows Server 2003 that is used for the deployment of workstations and servers by large corporations. ...

Novell

• NetWare network operating system providing high-performance network services. Has been superseded by Open Enterprise Server line, which can be based on NetWare or Linux to provide the same set of services.
• SUSE Linux acquired by Novell which has adopted it as its core infrastructure. Novell now is a prime contributor to open-source projects based on Linux.

Novell Inc. ... NetWare is a network operating system and the set of network protocols it uses to talk to client machines on the network. ... SUSE (pronounced IPA: , properly (in German), ZOO-za, loosely SOO-sa [1] in English) is a major retail Linux distribution, produced in Germany and owned by Novell, Inc. ...

Non-standard language

• Symbolics Genera written in a systems dialect of the Lisp programming language called ZetaLisp, for this reason referred to as Lisp machines.
• Texas Instruments' Explorer Lisp machine workstations also had systems code written in Lisp Machine Lisp.
• The Mesa programming language was used to implement some (all?) systems code in Xerox Star workstations.
• PERQ Operating System (POS) was written in PERQ Pascal.

In biology, a genus (plural genera) is a grouping in the classification of living organisms having one or more related and morphologically similar species. ... “LISP” redirects here. ... ZetaLisp was the name Symbolics gave to their dialect of Lisp on their Lisp Machine models, to distinguish it from the MIT version. ... The original Lisp machine built by Greenblatt and Knight Lisp machines were general-purpose computers designed (usually through hardware support) to efficiently run Lisp as their main software language. ... Texas Instruments (NYSE: TXN), better known in the electronics industry (and popularly) as TI, is an American company based in Dallas, Texas, USA, renowned for developing and commercializing semiconductor and computer technology. ... The original Lisp machine built by Greenblatt and Knight Lisp machines were general-purpose computers designed (usually through hardware support) to efficiently run Lisp as their main software language. ... Lisp Machine Lisp is a dialect of the Lisp programming language, a direct descendant of MacLisp, and was initially developed in the mid to late 1970s as the systems programming language for the MIT Lisp machines. ... Mesa is a programming language developed at Xerox PARC that was used to program the Xerox Alto (one of the first personal computers with a graphical user interface), and later the Xerox Star workstations, and later the GlobalView desktop environment. ... The Star workstation, officially known as the 8010 Star Information System, was introduced by Xerox Corporation in 1981. ... PERQ, often referred to as the Three Rivers PERQ, was an influential computer workstation first released in 1979. ... Pascal is a structured imperative computer programming language, developed in 1970 by Niklaus Wirth as a language particularly suitable for structured programming. ...

Other

• Desqview, allows running multiple copies of DOS concurrently on one machine.
• EOS (Operating System), developed by ETA Systems for use in their ETA-10 line of supercomputers
• EMBOS, developed by Elxsi for use on their mini-supercomputers
• GCOS is a proprietary Operating System originally developed by General Electric
• PC-MOS/386 - DOS-like, but multiuser/multitasking
• SINTRAN III - an operating system used with Norsk Data computers.
• THEOS, THEOS Software Corporation
• TinyOS
• TRS-DOS A floppy-disk-oriented OS supplied by Tandy/Radio Shack for their Z80-based line of personal computers.
• TX990/TXDS, DX10 and DNOS - proprietary operating systems for TI-990 minicomputers
• MAI Basic Four - An OS implementing Business Basic from MAI Systems.
• Michigan Terminal System - Developed by a group of American universities for IBM 360 series mainframes
• TSX-32, a 32-bit operating system for x86 platform.

DESQview was a text mode multitasking program developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s. ... EOS was the name of an operating system developed by ETA Systems for use in their ETA-10 line of supercomputers in the 1980s. ... ETA Systems logo ETA Systems was a supercomputer company spun-off from Control Data Corporation (CDC) in the early 1980s in order to regain a footing in the supercomputer business. ... An ETA-10 supercomputer installation The ETA-10 was a line of supercomputers manufactured by ETA Systems (a spin-off division of CDC) in the 1980s and which implemented the instruction set of the CDC Cyber 205. ... A supercomputer is a computer that led the world (or was close to doing so) in terms of processing capacity, particularly speed of calculation, at the time of its introduction. ... Elxsi was a minicomputer manufacturing company established in the late 1970s along with a host of other competitors (Trilogy, Sequent, Convex Computer). ... Minisupercomputers constituted a class of computers that emerged in the mid-1980s. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... “GE” redirects here. ... PC-MOS/386 is an DOS like operating system by The Software Link, incorporated. ... SINTRAN III was a real-time, multitasking, multi-user operating system used with Norsk Data computers from 1974. ... The characteristic ND dotted logo used from 1973 Norsk Data was a (mini-)computer manufacturer located in Oslo, Norway. ... Theos may refer to: Theos Is a medical electronics company with revolutionary technology focusing on remote patient monitoring . ... TinyOS is an open source component-based operating system and platform targeting wireless sensor networks (WSNs). ... TRS-DOS (which stood for the Tandy Radio Shack - Disk Operating System) was the operating system for the Tandy TRS-80 line of 8-bit Z-80 micro-computers that were sold through Radio Shack through the late 1970s and early 1980s. ... DX10 was a general purpose, disk based, multitasking operating system for the Texas Instruments 990/10, 990/10A and 990/12 minicomputers using the memory mapping feature. ... TI-990 programmers panel. ... MAI Basic Four (sometimes written as BasicFour or Basic 4) refers to a variety of business Basic, the computers that ran it, and the company that sold them (its name given variously as MAI Basic Four Inc. ... Business Basic is an interactive high-level programming language developed for minicomputer systems in the early 1970s. ... MTS is an operating system for IBM System/360 and its successors that was developed jointly by the following institutions: University of Michigan Wayne State University Simon Fraser University University of Alberta University of British Columbia Rensselaer Polytechnic Institute Durham University University of Newcastle-upon-Tyne Popular programs developed for... TSX-32 is a 32-bit multi-user multitasking operating system for x86 architecture platform, with a command line user interface. ...

Other proprietary Unix-like and POSIX-compliant

• Aegis (Apollo Computer)
• Amiga Unix (Amiga ports of Unix System V release 3.2 with Amiga A2500UX and SVR4 with Amiga A3000UX. Started in 1989, last version was in 1992)
• Clix (Intergraph's System V implementation)
• Coherent (Unix-like OS from Mark Williams Co. for PC class computers)
• DNIX from DIAB
• DSPnano RTOS (POSIX nanokernel, DSP Optimized, Open Source)
• Idris workalike from Whitesmiths
• INTERACTIVE UNIX (a port of the UNIX System V operating system for Intel x86 by INTERACTIVE Systems Corporation)
• IRIX from SGI
• MeikOS
• NeXTSTEP (developed by NeXT; a Unix-based OS based on the Mach microkernel)
• OS-9 Unix-like RTOS. (OS from Microware for Motorola 6809 based microcomputers)
• OSF/1 (developed into a commercial offering by Digital Equipment Corporation)
• OPENSTEP
• QNX (POSIX, microkernel OS; usually a real time embedded OS)
• Rhapsody (an early form of Mac OS X)
• RISC/os (a port by MIPS of 4.3BSD to the MIPS RISC architecture)
• RMX
• SCO UNIX (from SCO, bought by Caldera who re-renamed themselves SCO Group)
• SINIX (a port by SNI of Unix to the MIPS RISC architecture)
• Solaris (Sun's System V-based replacement for SunOS)
• SunOS (BSD-based Unix system used on early Sun hardware)
• SUPER-UX (a port of System V Release 4.2MP with features adopted from BSD and Linux for NEC SX architecture supercomputers)
• System V (a release of AT&T Unix, 'SVR4' was the 4th minor release)
• System V/AT, 386 (The first version of AT&T System V UNIX on the IBM 286 and 386 PCs, ported and sold by Microport)
• Trusted Solaris (Solaris with kernel and other enhancements to support multilevel security)
• UniFlex (Unix emulating OS by TSC for DMA-capable, extended addresses, Mototola 6809 based computers; eg SWTPC, GIMIX, ...)
• Unicos (the version of Unix designed for Cray Supercomputers, mainly geared to vector calculations)
• Unison RTOS (Multicore RTOS with DSP Optimization)
• MUSIC/SP (an operating system developed for the S/370, running normally under VM)
• DG/UX (Data General Corp)

Domain/OS was the operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computers, Inc. ... This article does not cite its references or sources. ... Commodore-Amiga, Inc. ... A brand of pre-painted miniatures game by WizKids featuring rotating statistics dials in the base of the figures. ... The Coherent operating system was introduced in 1983 by the now-defunct Mark Williams Company as one of the first Unix-like systems for IBM PC-compatible computers. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... DNIX was a real-time UNIX compatible operating system from the Swedish company Dataindustrier AB (DIAB). ... Dataindustrier AB or DIAB was a Swedish computer engineering and manufacturing firm, founded in 1970 by Lars Karlsson and active in the 1970s through 1990s. ... DSPnano is a real-time and embedded operating system or RTOS. It was first created in 1996 and was one of the first pthread based real-time kernels. ... INTERACTIVE UNIX System V/386 is a port of the UNIX System V operating system for Intel x86 processors. ... In computer science, porting is the process of adapting software so that an executable program can be created for a computing environment that is different from the one for which it was originally designed (e. ... It has been suggested that Traditional Unix be merged into this article or section. ... // An operating system (OS) is the software that manages the sharing of the resources of a computer. ... x86 or 80x86 is the generic name of a microprocessor architecture first developed and manufactured by Intel. ... INTERACTIVE Systems Corporation (ISC) was a computer software company, known for their versions of the Unix operating system. ... IRIX is a computer operating system developed by Silicon Graphics, Inc. ... Silicon Graphics, Inc. ... MeikOS (also written as Meikos or MEiKOS) was a Unix-like computer operating system developed by Meiko Scientific for their transputer-based Computing Surface massively parallel computers during the late 1980s. ... NEXTSTEP is the original object-oriented, multitasking operating system that NeXT Computer, Inc. ... For other meanings, see Next. ... Mach is an operating system kernel developed at Carnegie Mellon University to support operating system research, primarily distributed and parallel computation. ... For Mac OS 9, see Mac OS 9. ... Diagram of the relationships between several Unix-like systems A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification. ... A Real Time Operating System or RTOS is an operating system that has been developed for real-time applications. ... Microware is the corporation that produced the OS-9 operating system. ... The Motorola 6809 is an 8-bit* microprocessor from Motorola, introduced circa 1979. ... The DEC logo Digital Equipment Corporation was a pioneering American company in the computer industry. ... OPENSTEP on Windows NT. OpenStep is an object-oriented API specification for an object-oriented operating system that uses any modern operating system as its core, principally developed by NeXT with Sun Microsystems. ... QNX (pronounced either Q-N-X or Q-nix) is a commercial POSIX-compliant Unix-like real-time operating system, aimed primarily at the embedded systems market. ... Rhapsody was the code name given to Apple Computers next-generation operating system during the period of its development between Apples purchase of NeXT in late 1996 and the announcement of Mac OS X in 1998. ... RISC/os is an operating system distributed by MIPS Computer Systems, Inc. ... ... Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is the Unix derivative distributed by the University of California, Berkeley starting in the 1970s. ... MIPS may mean: MIPS architecture, a RISC microprocessor architecture. ... Reduced Instruction Set Computer (RISC), is a microprocessor CPU design philosophy that favors a smaller and simpler set of instructions that all take about the same amount of time to execute. ... RMX is a Real-time operating system for the Intel 8080 & 8086. ... Tarantella, Inc. ... Santa Cruz Operation (SCO) was a software company based in Santa Cruz, California that was best known for selling three Unix variants for Intel x86 processors: Xenix, SCO UNIX (later known as SCO OpenServer), and UnixWare. ... The SCO Group, Inc. ... SINIX (later renamed to Reliant UNIX) was a version of the Unix operating system from Siemens Nixdorf Informationssysteme. ... Siemens Nixdorf Informationssysteme, AG (SNI) was formed in the mid 1990s by the merger of Nixdorf Computer AG and the Siemens Data Information Services (DIS) division. ... Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIX®) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ... MIPS may mean: MIPS architecture, a RISC microprocessor architecture. ... Reduced Instruction Set Computer (RISC), is a microprocessor CPU design philosophy that favors a smaller and simpler set of instructions that all take about the same amount of time to execute. ... Solaris is a computer operating system developed by Sun Microsystems. ... SunOS was the version of the UNIX operating system developed by Sun Microsystems for their workstations and server systems until the early 1990s. ... SUPER-UX, sometimes spelled SuperUx, is the UNIX-like operating system that is used on the Cray/NEC SX architecture supercomputers. ... It has been suggested that Traditional Unix be merged into this article or section. ... “BSD” redirects here. ... This article is about operating systems that use the Linux kernel. ... NEC Corporation (Jp. ... This article may be too technical for most readers to understand. ... A supercomputer is a computer that led the world (or was close to doing so) in terms of processing capacity, particularly speed of calculation, at the time of its introduction. ... AT&T UNIX System V was one of the versions of the UNIX operating system. ... Microport (1985 - 2002) was a Scotts Valley, California-based computer software company which ushered in the era of low-cost UNIX technology. ... Microport (1985 - 2002) was a Scotts Valley, California-based computer software company which ushered in the era of low-cost UNIX technology. ... Trusted Solaris is a security-evaluated operating system based on Solaris by Sun Microsystems, featuring a mandatory access control model. ... Multilevel Security (also written as multi-level security or abbreviated as MLS) is the application of a computer system to process information with different sensitivities (i. ... UniFlex is Unix emulating operating system developed by Technical Systems Consultants (TSC) for multitasking, multiprocessing for the 68000 family. ... TSC may stand for: Technology Service Corps, a workforce development program for talented youth in the New York city area Technical Systems Consultants a microsomcputer softwre development firm begun by Purdue University graduates in West Lafayette, Indiana, moving to Chapel Hill, North Carolina about 1980; developers of Flex, mini-Flex... The U.S. company SWTPC started in 1964 as DEMCO (Daniel E. Meyer Company). ... UNICOS is the Unix successor of the Cray Operating System (COS) for Cray supercomputers. ... MUSIC/SP (Multi-User System for Interactive Computing / System Product) was developed at McGill University in the late 1960s from an IBM system called RAX (Remote Access). ... DG/UX was a Unix variant developed by Data General that was notable for its rare updates. ...

SDS (Scientific Data Systems)

• CP Control Program. SDS later acquired by Xerox, then Honeywell.

Cp, CP, cp, cP may be: // In chemistry, the cyclopentadienyl ligand. ...

TRON Project

• TRON (an open real-time operating system kernel)

TRON is an open real-time operating system kernel, and is an acronym for The Real-time Operating System Nucleus. The project was begun by Prof. ... A real-time operating system (RTOS) is a multitasking operating system intended for real-time applications. ... A kernel connects the application software to the hardware of a computer. ...

UNIVAC (later Unisys)

• EXEC I
• EXEC II
• EXEC 8 Ran on 1100 series.

EXEC I was Univacs original operating system developed for the UNIVAC 1107. ... EXEC II was an operating system developed for the UNIVAC 1107 by Computer Sciences Corporation (CSC) while under contract to Univac to develop the machines COBOL compiler. ... EXEC 8 (sometimes referred to as EXEC VIII) was UNIVACs operating system developed for the UNIVAC 1108 in 1964. ...

Nonproprietary Unix-like

Research Unix-like and other POSIX-compliant

• Minix (study OS developed by Andrew S. Tanenbaum in the Netherlands)
• Plan 9 (distributed OS developed at Bell Labs, based on original Unix design principles yet functionally different and going much further)
  • Inferno (distributed OS derived from Plan 9, originally from Bell Labs)
  • Plan B (distributed OS derived from Plan 9 and Off++ microkernel) [4]
• Solaris, contains original Unix (SVR4) code (code now open source via OpenSolaris project)
• Unix (OS developed at Bell Labs ca 1970 initially by Ken Thompson)
• Xinu, (Study OS developed by Douglas E. Comer in the USA)

MINIX is a free/open source, Unix-like operating system (OS) based on a microkernel architecture. ... Andrew S. Tanenbaum Dr. Andrew Stuart Andy Tanenbaum (sometimes called ast)[1] (born 1944) is a professor of computer science at the Vrije Universiteit, Amsterdam in the Netherlands. ... Plan 9 from Bell Labs is a distributed operating system, primarily used as a research vehicle. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... Inferno is an operating system for creating and supporting distributed services. ... Plan 9 from Bell Labs is a distributed operating system, primarily used as a research vehicle. ... Plan 9 from Bell Labs is a distributed operating system, primarily used as a research vehicle. ... Solaris is a computer operating system developed by Sun Microsystems. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... OpenSolaris is an open source project created by Sun Microsystems to build a developer community around Solaris Operating System technology. ... Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIX®) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ... Ken Thompson Kenneth Thompson (born February 4, 1943) is a pioneer of computer science notable for his contributions to the development of the C programming language and the UNIX operating system. ... XINU is a small multitasking operating system that was originally designed for teaching in the university environment. ... It has been suggested that this article or section be merged with Douglas E. Comer. ...

Open source Unix-like

• BSD (Berkeley Software Distribution, a variant of Unix for DEC VAX hardware)
  • FreeBSD (one of the outgrowths of UC Regents' abandonment of CSRG's 'BSD Unix')
    • DesktopBSD FreeBSD distribution for desktop use
    • PC-BSD FreeBSD distribution for desktop use
    • DragonFly BSD forked from FreeBSD
  • NetBSD (one of the outgrowths of UC Regents' abandonment of CSRG's 'BSD Unix')
    • OpenBSD forked from NetBSD
• GNU Hurd
• Linux
• OpenDarwin
• OpenSolaris, contains original Unix (SVR4) code
• SSS-PC Developed at Tokyo University
• Syllable
• VSTa
• UnixLite

“BSD” redirects here. ... The DEC logo Digital Equipment Corporation was a pioneering American company in the computer industry. ... VAX is a 32-bit computing architecture that supports an orthogonal instruction set (machine language) and virtual addressing (i. ... FreeBSD is a Unix-like free operating system descended from AT&T UNIX via the Berkeley Software Distribution (BSD) branch through the 386BSD and 4. ... The Computer Systems Research Group (CSRG) was a research group at the University of California, Berkeley that was dedicated to enhancing AT&T Unix operating system and funded by Defense Advanced Research Projects Agency. ... DesktopBSD is a UNIX-derivative, desktop-oriented operating system based on FreeBSD. Its goal is to combine the stability of FreeBSD with the ease-of-use of KDE, which is the default graphical user interface. ... PC-BSD is a Unix-like, desktop-oriented operating system based on FreeBSD similar to DesktopBSD. It aims to be easy to install by using a graphical installation program, and easy- and ready-to-use immediately by providing KDE as the default, pre-installed graphical user interface. ... DragonFly BSD is a free Unix-like operating system created as a fork of FreeBSD 4. ... NetBSD is a freely redistributable, open source version of the Unix-like BSD computer operating system. ... The Computer Systems Research Group (CSRG) was a research group at the University of California, Berkeley that was dedicated to enhancing AT&T Unix operating system and funded by Defense Advanced Research Projects Agency. ... OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution (BSD), a Unix derivative developed at the University of California, Berkeley. ... The GNU Hurd (usually referred to as the Hurd) is a computer operating system kernel. ... This article is about operating systems that use the Linux kernel. ... Hexley, the mascot of OpenDarwin OpenDarwin is a freely available, multi-platform BSD / Mach 3. ... OpenSolaris is an open source project created by Sun Microsystems to build a developer community around Solaris Operating System technology. ... SSS-PC is an operating system (kernel) with powerful scalability and load-balancing capabilities, created in Japan by Takashi MATSUMOTO with superior functions for clustering, parallel processing and targeting server applications. ... Syllable is a free and open source operating system for Intel x86 Pentium and compatible processors. ... VSTa is an operating system with a microkernel architecture, with all drivers and filesystems residing in userspace mode. ... There are very few or no other articles that link to this one. ...

Nonproprietary non-Unix-like

Research non-Unix-like

• Amoeba (research OS by Andrew S. Tanenbaum)
• Croquet
• House Haskell User's Operating System and Environment, research OS written in Haskell and C. [5]
• ILIOS Research OS designed for routing, sources at [6].
• EROS microkernel, capability-based
  • CapROS microkernel EROS successor.
  • Coyotos microkernel EROS successor, goal: be first formally verified OS.
• L4 Second generation microkernel
• Mach (from OS kernel research at Carnegie Mellon University; see NeXTSTEP)
• MONADS capability-based OS designed to support the MONADS hardware projects [7].
  • Speedos builds on MONADS ideas [8]
• Nemesis Cambridge University research OS - detailed quality of service abilities. [9]
• Singularity - A research operating system written mostly in managed code (C#) by Microsoft. [10]
• Spring (research OS from Sun Microsystems)
• V from Stanford, early 1980s Capability-Based Computer Systems

The Amoeba distributed operating system is a microkernel-based research operating system written by Andrew S. Tanenbaum at Vrije Universiteit. ... Andrew S. Tanenbaum Dr. Andrew Stuart Andy Tanenbaum (sometimes called ast)[1] (born 1944) is a professor of computer science at the Vrije Universiteit, Amsterdam in the Netherlands. ... Real time, interactive, 3D map of this very same world. ... The Haskell Users Operating System and Environment is an experimental operating system written in Haskell. ... ILIOS is an acronym of InterLink Internet Operating System. ... EROS (The Extremely Reliable Operating System) is an operating system developed by the University of Pennsylvania and the Johns Hopkins University. ... CapROS [1] (the Capability-based Reliable Operating System) is an open source operating system. ... Coyotos is a secure operating system currently being developed by researchers[1] at the Johns Hopkins Universitys Systems Research Laboratory[2]. Objectives Though it has many objectives, one of the most interesting is to become the first formally verified operating system. ... Program verification is the process of formally proving that a computer program does exactly what is stated in the program specification it was written to realize. ... L4 is, collectively, a family of related computer programs. ... Mach is an operating system kernel developed at Carnegie Mellon University to support operating system research, primarily distributed and parallel computation. ... Carnegie Mellon University is a private research university in Pittsburgh, Pennsylvania, United States. ... NEXTSTEP is the original object-oriented, multitasking operating system that NeXT Computer, Inc. ... Also competition briefs, swim briefs, and racing briefs Prince William of Wales wearing a Speedo suit at a water polo match A speedo, which takes its name from the swimsuit brand Speedo, may refer to any briefs-style male swimsuit such as those used in competitive swimming, regardless of the... Nemesis is an operating system designed by the University of Cambridge, the University of Glasgow, the Swedish Institute of Computer Science and Citrix Systems. ... Singularity is a Microsoft Research project to build a highly-dependable operating system in which the kernel, device driver, and applications are all written in managed code. ... In Microsoft Windows terminology, managed code is computer instructions — that is, code — executed by a CLI-compliant virtual machine, such as Microsofts . ... The title given to this article is incorrect due to technical limitations. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... Spring was an experimental microkernel-based object oriented operating system developed at Sun Microsystems in the early 1990s. ... The V operating system (sometimes written V-System) is a microkernel operating system that was developed by faculty and students in the Distributed Systems Group at Stanford University in the 1980s, led primarily by Prof. ...

Open source non-Unix-like

• FullPliant (programming language based)
• FreeDOS (open source DOS variant)
• FreeVMS (open source VMS variant)
• Haiku (open source inspired by BeOS, under development)
• ReactOS (free software Windows NT compatible OS, in early development)
• osFree (open source OS/2 implementation)

The Pliant programming language is based on a dynamic compiler, which makes it act like it is interpreted. ... FreeDOS (formerly Free-DOS and PD-DOS) is an operating system for IBM PC compatible computers. ... FreeVMS is a free software clone — licensed under the terms of the GPL— of the computer operating system VMS. As of 2006, the project was very much in the early stages of development. ... The tone or style of this article or section may not be appropriate for Wikipedia. ... BeOS is an operating system for personal computers which began development by Be Inc. ... ReactOS is a project to develop an operating system that is binary-compatible with application software and device drivers for Microsoft Windows NT version 5. ... This article is about free software as used in the sociopolitical free software movement; for non-free software distributed without charge, see freeware. ...

Disk Operating System

• DR-DOS (Digital Research's [later Novell, Caldera, ...] DOS variant)
  • Concurrent DOS (Digital Research's first multiuser DOS variant)
  • Multiuser DOS (Digital Research's [later CCI's. Real's/...] multiuser DOS variant)
• FreeDOS (open source DOS variant)
• ProDOS (operating system for the Apple II series computers)
• PTS-DOS (DOS variant by Russian company Phystechsoft)
• 86-DOS (developed at Seattle Computer Products by Tim Paterson for the new Intel 808x CPUs; licensed to Microsoft, became MS-DOS/PC-DOS. Also known by its working title QDOS.)
  • MS-DOS (Microsoft's now abandoned DOS variant)
  • PC-DOS (IBM's DOS variant)
• RDOS (Data General Corp)
  • TurboDOS (Software 2000, Inc.)
• SuperDOS - an MS-DOS clone with full NTFS and USB support [11], based on FreeDOS.

This article is about the operating system. ... Multiuser DOS is an operating system for IBM PC-compatible microcomputers. ... Multiuser DOS is an operating system for IBM PC-compatible microcomputers. ... FreeDOS (formerly Free-DOS and PD-DOS) is an operating system for IBM PC compatible computers. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... For Australian-based Objectivist Prodos Marinakis and the prodos institute, see here. ... The Apple II was one of the most popular personal computers of the 1980s. ... PTS-DOS is a disk operating system, a DOS clone, developed in Russia by Phystechsoft. ... 86-DOS was an operating system developed and marketed by Seattle Computer Products for its Intel 8086-based computer kit. ... Microsoft Corporation, (NASDAQ: MSFT, HKSE: 4338) is a multinational computer technology corporation with global annual revenue of US$44. ... Microsofts disk operating system, MS-DOS, was Microsofts implementation of DOS, which was the first popular operating system for the IBM PC, and until recently, was widely used on the PC compatible platform. ... IBM PC-DOS was one of the three major operating systems that dominated the personal computer market from about 1985 to 1995. ... RDOS, or the Real-time Disk Operating System, was a real-time operating system released in 1972 for the popular Data General Nova and Data General Eclipse minicomputers. ...

Network

• Cambridge Ring
• CSIRONET by (CSIRO)
• CTOS (Convergent Technologies, later acquired by Unisys)
• Data ONTAP by Network Appliance
• SAN-OS by Cisco
• EOS by McDATA
• Fabric OS by Brocade
• NetWare (networking OS by Novell)
• NOS (developed by CDC for use in their Cyber line of supercomputers)
• Novell Open Enterprise Server (Open Source networking OS by Novell. Can incorporate either SUSE Linux or Novell NetWare as its kernel).
• OliOS
• Plan 9 (distributed OS developed at Bell Labs, based on Unix design principles but not functionally identical)
  • Inferno (distributed OS derived from Plan 9, originally from Bell Labs)
  • Plan B (distributed OS derived from Plan 9 and Off++ microkernel) [12]
  • TurboDOS (Software 2000, Inc.)

The Cambridge Ring was an experimental token-passing local area network architecture developed at the Cambridge University Computer Laboratory in the mid-late 1970s and early 1980s. ... The Commonwealth Scientific and Industrial Research Organisation (CSIRO) is the national government body for scientific research in Australia. ... The Convergent Technologies Operating System, also known variously as CTOS, BTOS and STARSYS, was a modular, message-passing, multi-process based operating system. ... Convergent Technologies was a company formed by a small group of people who left Intel Corporation in 1979. ... Unisys Corporation (NYSE: UIS), based in Blue Bell, Pennsylvania, United States, and incorporated in Delaware[3], is a global provider of information technology services and solutions. ... Network Appliance, Inc. ... Cisco may refer to: Cisco Systems, a computer networking company Cisco IOS, an internet router operating system CISCO Security Private Limited, a security company in Singapore Commercial and Industrial Security Corporation, a statutory board in Singapore Abbreviation for San Francisco, California Cisco (wine) The Cisco Kid, a fictional character created... Eos, by Evelyn De Morgan (1850 - 1919), 1895 (Columbia Museum of Art, Columbia, SC): for a Pre-Raphaelite painter, Eos was still the classical pagan equivalent of an angel Eos (dawn) was, in Greek Mythology, the Titan goddess of the dawn, who rose from her home at the edge of... Fabric OS (FOS) is a Linux based operating system developed by Brocade. ... Brocade, Inc. ... NetWare is a network operating system and the set of network protocols it uses to talk to client machines on the network. ... Novell Inc. ... Network operating system (NOS): Software that (a) controls a network and its message (e. ... Control Data Corporation, or CDC, was one of the pioneering supercomputer firms. ... Novell Open Enterprise Server (OES) is a network software product by Novell, Inc. ... Novell Inc. ... SUSE (pronounced IPA: , properly (in German), ZOO-za, loosely SOO-sa [1] in English) is a major retail Linux distribution, produced in Germany and owned by Novell, Inc. ... Plan 9 from Bell Labs is a distributed operating system, primarily used as a research vehicle. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... Inferno is an operating system for creating and supporting distributed services. ... Plan 9 from Bell Labs is a distributed operating system, primarily used as a research vehicle. ...

Generic/commodity, non-Unix, and other

• BLIS/COBOL
• Bluebottle also known as AOS (a concurrent and active object update to the Oberon operating system)
• BS1000 by Siemens AG
• BS2000 by Siemens AG, now BS2000/OSD from Fujitsu-Siemens Computers (formerly Siemens Nixdorf Informationssysteme)
• BS3000 by Siemens AG (functionally similar to OS-IV and MSP from Fujitsu)
• Control Program/Monitor (CP/M)
  • CP/M-80 (CP/M for Intel 8080/8085 and Zilog Z80 from Digital Research)
  • CP/M-86 (CP/M for Intel 8088/86 from Digital Research)
  • CP/M-68k (CP/M for Motorola 68000 from Digital Research)
  • CP/M-8000 (CP/M for Zilog Z8000 from Digital Research)
  • MP/M-80 (Multi programming version of CP/M-80 from Digital Research)
  • MP/M-86 (Multi programming version of CP/M-86 from Digital Research)
• DESQview (multi-tasking windowing user interface for DOS)
  • DESQView/X (X-windowing GUI for DOS)
• FLEX9 (by TSC for Motorola 6809 based machines; successor to FLEX, which was for Motorola 6800 CPUs)
• GEM (windowing GUI for CP/M, DOS, and Atari TOS)
• GEORGE 2/3/4 GEneral ORGanisational Environment, used by ICL 1900 series mainframes
• GEOS (popular windowing GUI for PC, Commodore, Apple computers)
• JavaOS
• JNode JNode.org's OS written 99% in Java (native compiled), provides own JVM and JIT compiler. Based on GNU Classpath
• JX Java operating system that focuses on a flexible and robust operating system architecture developed as an open source system by the University of Erlangen.[13]
• KERNAL (default OS on Commodore 64)
• MERLIN [14] for the Corvus Concept [15]
• MorphOS (by Genesi)
• MSP by Fujitsu (successor to OS-IV), now MSP/EX for 31-bit mode
• nSystem by Luis Mateu at DCC, Universidad de Chile
• NetWare (networking OS by Novell)
• Oberon operating system (developed at ETH-Zürich by Niklaus Wirth et al) for the Ceres and Chameleon workstation projects. see also Oberon programming language
• OSD/XC by Fujitsu-Siemens (BS2000 ported to an emulation on a Sun SPARC platform)
• OS-IV by Fujitsu (based on early versions of IBM's MVS)
• Pick (often licensed and renamed)
• PRIMOS by Prime Computer (sometimes spelled PR1MOS and PR1ME)
• Sinclair QDOS (multitasking for the Sinclair QL computer)
• SkyOS (Commercial desktop OS for PCs)
• SSB-DOS (by TSC for Smoke Signal Broadcasting; a variant of FLEX in most respects)
• SymbOS (GUI based multitasking operating system for Z80 computers [16])
• TripOS, 1978
  • TurboDOS (Software 2000, Inc.)
• UCSD p-System (portable complete programming environment/operating system/virtual machine developed by a long running student project at the Univ Calif/San Diego; directed by Prof Ken Bowles; written in Pascal)
• UMIX, made for the ICFP Programming Contest 2006.
• VME by International Computers Limited (ICL)
• VOS by Stratus Technologies with strong influence from Multics
• VOS by Hitachi for its IBM-compatible mainframes, based on IBM's MVS
• VM2000 by Siemens AG
• VisiOn (first GUI for early PC machines; not commercially successful)
• VPS/VM (IBM based, main operating system at Boston University for over 10 years.)
• aceos under GPL

BLIS/COBOL The only operating system which gained reasonably wide acceptance, despite being written in COBOL, and which was optimised to compile business application written in COBOL. The vast majority of operating systems have been written over the years in assembler for a particular processor or family of processors. ... Bluebottle, also known as AOS, is the name of the next generation Native Oberon, the Oberon operating system for bare PC hardware. ... Tiled window arrangement of Oberon Oberon is an operating system, originally developed as part of the NS32032-based Ceres workstation project; it is written entirely in the Oberon programming language. ... “Siemens” redirects here. ... BS2000 is an operating system from Siemens Nixdorf Informationssysteme for mainframes. ... “Siemens” redirects here. ... BS2000 or BS2000/OSD (indicating availability of POSIX-compliant routines) is an operating system from Fujitsu Siemens Computers (formerly Siemens Nixdorf Informationssysteme) for mainframes. ... Fujitsu Siemens Computers is a Japanese and German IT vendor, selling consumer and business computing products in the markets of Europe, the Middle East and Africa (products marketed elsewhere are sold under the Fujitsu brand). ... Siemens Nixdorf Informationssysteme, AG (SNI) was formed in the mid 1990s by the merger of Nixdorf Computer AG and the Siemens Data Information Services (DIS) division. ... “Siemens” redirects here. ... CP/M (Command Processor for Microcomputers) was an operating system for Intel 8080/85 and Zilog Z80 based microcomputers. ... CP/M (Command Processor for Microcomputers) was an operating system for Intel 8080/85 and Zilog Z80 based microcomputers. ... One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. ... CP/M-86 was a version of the CP/M operating system that Digital Research made for the Intel 8086 and Intel 8088. ... The Motorola 68000 is a 32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor (formerly Motorola Semiconductor Products Sector). ... The Z8000 was a 16-bit microprocessor introduced by ZiLOG in 1979. ... MP/M was the multi-user version of the CP/M operating system, created by Digital Research. ... MP/M was the multi-user version of the CP/M operating system, created by Digital Research. ... DESQview was a text mode multitasking program developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s. ... “X11” redirects here. ... TSC may stand for: Technology Service Corps, a workforce development program for talented youth in the New York city area Technical Systems Consultants a microsomcputer softwre development firm begun by Purdue University graduates in West Lafayette, Indiana, moving to Chapel Hill, North Carolina about 1980; developers of Flex, mini-Flex... GEM (Graphical Environment Manager) was a windowing system created by Digital Research, Inc. ... This article is about a corporate game company. ... For other uses, see George. ... International Computers Ltd, or ICL, was a large British computer hardware company that operated from 1968 until 2002, when it was renamed Fujitsu Services Limited after its parent company, Fujitsu. ... GEOS (Graphic Environment Operating System) was an operating system from Berkeley Softworks (later GeoWorks). ... JavaOS is an operating system with a Java virtual machine as a fundamental component. ... JNode (Java New Operating System Design Effort) is an open-source project to create a Java platform operating system. ... GNU Classpath is a project aiming to create a free implementation of the standard class library for the Java programming language. ... The KERNAL is Commodores name for the ROM-resident operating system core in its 8-bit home computers; from the original PET of 1977, via the extended, but strongly related, versions used in its successors; the VIC-20, C64, Plus/4, C16, and C128. ... MorphOS is a mixed proprietary and open source operating system produced for the Pegasos PowerPC (PPC)-processor-based computer, most models of PPC-accelerated classic Amiga computers, and the EFIKA PPC consumer device. ... Genesi is computer company focused on building Power Architecture computers. ... MSP can refer to: Microsoft Project, project management software program developed and sold by Microsoft Microsoft Windows Installer Patch, Application patching framework by Microsoft Member of the Scottish Parliament, title given to any one of the 129 individuals elected to serve in the Scottish Parliament Minneapolis-St. ... For the district in Saga, Japan, see Fujitsu, Saga. ... The University of Chile (Spanish: Universidad de Chile) is one of the oldest universities in the Americas, and is the largest and arguably the most prestigious in Chile. ... NetWare is a network operating system and the set of network protocols it uses to talk to client machines on the network. ... Novell Inc. ... Tiled window arrangement of Oberon Oberon is an operating system, originally developed as part of the NS32032-based Ceres workstation project; it is written entirely in the Oberon programming language. ... Niklaus E. Wirth (born February 15, 1934) is a Swiss computer scientist, best known for designing several programming languages, including Pascal, and for pioneering several classic topics in software engineering. ... Oberon is a reflective programming language created in the late 1980s by Professor Niklaus Wirth (creator of the Pascal, Modula, and Modula-2 programming languages) and his associates at ETHZ in Switzerland. ... Fujitsu Siemens Computers is a European IT vendor, selling consumer and business computing products in the markets of Europe, the Middle East and Africa. ... For the district in Saga, Japan, see Fujitsu, Saga. ... MVS (Multiple Virtual Storage) was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. ... The Pick operating system (often called just the Pick system or simply Pick) is a demand-paged, multiuser, virtual memory, time-sharing operating system based around a unique multivalued database. ... This article does not cite any references or sources. ... Prime Computer was a Natick, Massachusetts-based producer of minicomputers from 1972 until 1992. ... Sinclair QDOS was the multitasking operating system found on the Sinclair QL and its clones. ... The Sinclair QL (for Quantum Leap), was a personal computer launched by Sinclair Research in 1984, as the successor to the ZX Spectrum. ... SkyOS is an operating system developed by Robert Szeleney. ... TSC may stand for: Technology Service Corps, a workforce development program for talented youth in the New York city area Technical Systems Consultants a microsomcputer softwre development firm begun by Purdue University graduates in West Lafayette, Indiana, moving to Chapel Hill, North Carolina about 1980; developers of Flex, mini-Flex... The FLEX operating system was developed by the company TSC for the Motorola 6800 in the 1970s. ... Screen shot of the SymbOS Desktops on the Amstrad CPC Screen shot of the MSX version of SymbOS SymbOS is a free multitasking operating system for Z80 based 8-bit computer systems. ... The Zilog Z80 is an 8-bit microprocessor designed and manufactured by Zilog from 1976 onwards. ... The University of Cambridge, England, divides the different kinds of honours bachelors degree by Tripos, a word which has an obscure etymology, but which may be traced to the three-legged stool candidates once used to sit on when taking oral examinations. ... The UCSD p-System or UCSD Pascal System was a portable highly machine independent operating system developed in 1978 by the Institute for Information Systems of the University of California, San Diego to provide all students with a common operating system that could run on any of the then available... Univeral Machine. ... The ICFP Programming Contest is an annual international programming competition associated with the International Conference on Functional Programming. ... VME (Virtual Machine Environment) is a mainframe operating system developed by the UK company International Computers Ltd (ICL). ... International Computers Ltd, or ICL, was a large British computer hardware company that operated from 1968 until 2002, when it was renamed Fujitsu Services Limited after its parent company, Fujitsu. ... VOS is a fault-tolerant operating system used in Stratus computers. ... Stratus Technologies is a Maynard, Massachusetts based producer of fault tolerant computers. ... Multics (Multiplexed Information and Computing Service) was an extraordinarily influential early time-sharing operating system. ... Vos, Willem, Dutch scientist Willem Vos is Professor of Physics at the University of Twente and Groupleader at the Institute for Atomic and Molecular Physics AMOLF In 2004, with his his group members, Peter Lodahl et. ... Hitachi may refer to: Hitachi (train) trains in Melbourne, Australia. ... MVS (Multiple Virtual Storage) was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. ... VM2000 is a hypervisor from Fujitsu-Siemens Computers (formerly Siemens Nixdorf Informationssysteme) designed specifically for use with the BS2000 and SINIX (a Unix® variant) operating systems. ... “Siemens” redirects here. ... Look up vision in Wiktionary, the free dictionary. ... VPS/VM (Virtual Processing System/Virtual Machine) was an operating system that ran on IBM/370-IBM/3090 computers at Boston University from 1977 to around 1990. ... For the similarly named institution in Chestnut Hill, see Boston College. ...

For Elektronika BK Soviet personal computer

• ANDOS
• AO-DOS
• BASIS
• CSI-DOS
• DOSB10
• DX-DOS
• FA-DOS
• HC-DOS
• KMON
• MicroDOS
• MK-DOS
• NORD
• NORTON-BK
• RAMON
• PascalDOS
• RT-11
  • ROM embedded
  • RT-11SJ
  • OS BK-11 (RT-11 version)
• Turbo-DOS
• BKUNIX
• OS/A WASP

Elektronika BK is a series of Russian home computers trademarked as Elektronika that are approximate clones of PDP-11. ... ANDOS is a Russian operating system. ... CSI-DOS is an operating system for Soviet personal computers Elektronika BK-0011M and Elektronika BK-0011, created in Samara. ... MK-DOS - one of the most wide-spread operating systems for Elektronika BK Soviet personal computer, developed by Mikhail Korolev and Dmitriy Butyrskiy starting from 1993. ... RT-11 (for Run Time or Real Time) was a real-time operating system for the DEC PDP-11. ... BKUNIX is an operating system for Soviet Elektronika BK personal computer. ...

Hobby

• AROS (AROS Research Operating System, formerly known as Amiga Research Operating System)
• AtheOS became Syllable
• EROS
• HelenOS
• LSE/OS
• MenuetOS is an extremely compact OS written entirely in FASM assembly language
• NewOS
• Syllable (a modern, independently originated OS; see AtheOS)
• Visopsys
• TajOS

What is AROS? AROS (Amiga Research Operating System) is an open source implementation of the AmigaOS 3. ... AtheOS was a free software operating system for x86-based computers. ... EROS (The Extremely Reliable Operating System) is an operating system developed by the University of Pennsylvania and the Johns Hopkins University. ... The HelenOS project aims to develop a general-purpose and portable operating system with elements of microkernel design and fully preemptive kernel. ... The LSE/OS kernel was a research kernel designed by a French research laboratory named Epita System Laboratory. ... MenuetOS (also known as MeOS) is an operating system with a monolithic preemptive, real-time kernel, including video drivers, all written in FASM assembly language, for 64-bit and 32-bit x86 architecture computers, by Ville Mikael Turjanmaa. ... FASM (Flat Assembler) is a free, multiple-pass, Intel-style assembler supporting the IA-32 and x86-64 architectures. ... Syllable is a free and open source operating system for Intel x86 Pentium and compatible processors. ... AtheOS was a free software operating system for x86-based computers. ... Visopsys (VISual OPerating SYStem) is a free software operating system for x86 personal computers available under the terms of the GNU General Public License (GPL). ... TajOS (Taj Operating System) is a free software operating system for x86 personal computers. ...

Embedded

• A/ROSE
• Embedded Linux
• polyBSD (embedded NetBSD)
• Inferno (distributed OS originally from Bell Labs)
• ROM-DOS
• MINIX 3
• T2 SDE
• Windows XP Embedded
• Windows CE
• .NET Micro Framework
• OS/RT

A/ROSE (the Apple Real-time Operating System Environment) was a small embedded operating system which ran on Apple Computers Macintosh Coprocessor Platform, an expansion card for the Apple Macintosh. ... Embedded Linux is a Linux based embedded operating system used in cell phones, personal digital assistants, media player handsets and other consumer electronics devices. ... Inferno is an operating system for creating and supporting distributed services. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... Full embedded OS; compact, reliable, fully compatible DOS for embedded uses, mobile computing environments, fast connecting of embedded systems to Internet ... MINIX 3 is a project with the aim to create a small, highly reliable and functional Unix-like operating system. ... T2 is a flexible Open Source System Development Environment (SDE) that allows the automated creation of Operating System with bleeding edge technology. ... Windows XP Embedded, or XPe, is the componentized version of Microsoft Windows XP Professional. ... Windows CE (sometimes abbreviated WinCE) is a variation of Microsofts Windows operating system for minimalistic computers and embedded systems. ... . ...

Personal digital assistants (PDAs)

• Inferno (distributed OS originally from Bell Labs)
• Palm OS from Palm Inc; now spun off as PalmSource
• EPOC originally from Psion (UK), now from Symbian, preferred name now is Symbian OS
• Windows CE, from Microsoft
  • Pocket PC from Microsoft, a variant of Windows CE.
  • Windows Mobile from Microsoft, a variant of Windows CE.
• Linux on Sharp Zaurus and Ipaq
• DOS on Poqet PC
• Newton OS on Apple Newton Messagepad
• VT-OS for the Vtech Helio

Inferno is an operating system for creating and supporting distributed services. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... Palm OS is an embedded operating system initially developed by U.S. Robotics owned Palm Computing, Inc. ... EPOC is a range of operating systems developed by Psion for portable devices, primarily PDAs. ... Symbian OS is a proprietary operating system, designed for mobile devices, with associated libraries, user interface frameworks and reference implementations of common tools, produced by Symbian Ltd. ... Windows CE (sometimes abbreviated WinCE) is a variation of Microsofts Windows operating system for minimalistic computers and embedded systems. ... The Dell Axim x30, a Pocket PC A Pocket PC, abbreviated P/PC or PPC, is a hardware specification for a handheld-sized computer (Personal digital assistant) that runs the Windows Mobile operating system. ... Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices based on the Microsoft Win32 API. Devices which run Windows Mobile include Pocket PCs, Smartphones, and Portable Media Centers. ... This article is about operating systems that use the Linux kernel. ... Sharp Zaurus SL-5500 running OpenZaurus and OPIE, with docking cradle and stylus The Sharp Zaurus is the name of a series of Personal Digital Assistant (PDA) made by Sharp Corporation. ... iPAQ presently refers to a Pocket PC and personal digital assistant first unveiled by Compaq in April 2000; the name was borrowed from Compaqs earlier iPAQ Desktop Personal Computers. ... This article is about the family of closely related operating systems for the IBM PC compatible platform. ... Poqet PC The Poqet PC is a very small, portable IBM PC compatible computer, introduced in 1989 by Poqet Computer Corporation, but no longer sold. ... Newton OS is the operating system of the Apple Newton. ... It has been suggested that Apple Newton Software be merged into this article or section. ...

Music players

iPods

• ipodlinux
• Pixo

Image:IPodLinux. ... The Pixo 2. ...

Smartphones

• JavaFX Mobile
• Windows CE
  • Windows Mobile
• Embedded Linux, MontaVista Linux in Motorola's A760, E680
• Mobilinux by Montavista.
• Symbian OS

JavaFX Mobile is a Java operating system for mobile devices initially developed by SavaJe Technologies and purchased[1] by Sun Microsystems in April 2007. ... Windows CE (sometimes abbreviated WinCE) is a variation of Microsofts Windows operating system for minimalistic computers and embedded systems. ... Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices based on the Microsoft Win32 API. Devices which run Windows Mobile include Pocket PCs, Smartphones, and Portable Media Centers. ... Embedded Linux is a Linux based embedded operating system used in cell phones, personal digital assistants, media player handsets and other consumer electronics devices. ... MontaVista Software develops systems software, development tools and Embedded Linux-based software targeting consumer electronics which includes automotive electronics, communications equipment, and television set-top boxes and other connected devices and infrastructure. ... Mobilinux is a Linux based OS targetting smartphones and announced by MontaVista Software on April 25, 2005. ... Symbian OS is a proprietary operating system, designed for mobile devices, with associated libraries, user interface frameworks and reference implementations of common tools, produced by Symbian Ltd. ...

Router

• CatOS by Cisco Systems
• Cisco IOS (originally Internetwork Operating System) by Cisco Systems
• Inferno (distributed OS originally from Bell Labs)
• IOS-XR by Cisco Systems
• ROX by Ruggedcom
• CyROS by Cyclades

CatOS (Catalyst Operating System) is Ciscos obsoleted operating system for many of their legacy network switches. ... “Cisco” redirects here. ... Cisco IOS (originally Internetwork Operating System) is the software used on the vast majority of Cisco Systems routers and all current Cisco network switches. ... “Cisco” redirects here. ... Inferno is an operating system for creating and supporting distributed services. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... IOS XR is Ciscos latest operating system, used on their high-end carrier-grade routers. ... “Cisco” redirects here. ... Rox may refer to the following: ROX Desktop, a Unix Desktop environment based around the ROX-Filer file manager Rox (TV series) is an independently produced TV series RoX, or Safrosoft RoX, a video game similar to Boulder Dash Brockton Rox, a minor league baseball team in Brockton, Massachusetts ROX... The Cyclades (Greek Κυκλάδες) are a Greek island group in the Aegean Sea, south-east of the mainland of Greece; and an administrative prefecture of Greece. ...

Microcontroller, Real-time

• ChorusOS
• Contiki written in C
• DSPnano RTOS (POSIX nanokernel, DSP Optimizations, Open Source)
• eCos
• embOS (Segger)
• FreeRTOS
• INtime RTOS for Windows, an evolutionary variant of iRMX for Windows designed for 32-bit Windows platforms
• iRMX (originally developed by Intel, now licensed to TenAsys Corporation)
• Inferno (distributed OS originally from Bell Labs)
• INTEGRITY
• LUnix written in 6502
• LynxOS
• MenuetOS
• MontaVista Linux (see also Embedded Linux)
• Nucleus
• OS-9 by Microware
• Operating System Embedded: OSE
• OSEK
• OS/RT
• Phoenix-RTOS
• Prex
• QNX
• RTAI
• RTEMS (Real-Time Executive for Multiprocessor Systems)
• RTLinux by Wind River Systems
• ThreadX
• TRON Project and ITRON Project (related to BTRON, CTRON, MTRON, etc.)
• μClinux
• uKOS [17]
• µOS++ (micro OS plus plus) [18]
• Unison Operating System / Unison DSP Operating System (RTOS) / Unison RTOS (Multicore DSP Operating System)
• VRTX / Versatile Real-Time Executive
• VxWorks by Wind River Systems
• XMK (eXtreme Minimal Kernel)
• Xenomai [19]

ChorusOS is a microkernel real-time operating system designed for embedded systems. ... Contiki is a small, open source, highly portable, multitasking computer operating system developed for use on a number of memory-constrained networked systems ranging from 8-bit computers to embedded systems on microcontrollers, including sensor network motes. ... C is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ... DSPnano is a real-time and embedded operating system or RTOS. It was first created in 1996 and was one of the first pthread based real-time kernels. ... The correct title of this article is . ... Segger Microcontroller Systems is a multinational company dealing in middleware for embedded devices and development tools. ... FreeRTOS is a real-time operating system for embedded devices, being ported to several microcontrollers. ... RMX is a Real-time operating system for the Intel 8080 & 8086. ... RMX is a Real-time operating system for the Intel 8080 & 8086. ... Intel Corporation (NASDAQ: INTC, SEHK: 4335), founded in 1968 as Integrated Electronics Corporation, is an American multinational corporation that is best known for designing and manufacturing microprocessors and specialized integrated circuits. ... Inferno is an operating system for creating and supporting distributed services. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ... INTEGRITY is a real-time operating system (RTOS) produced and marketed by Green Hills Software. ... Lunix (little UNIX) is an operating system for the Commodore 64 - a famous home computer back in the 80s. ... The MOS Technology 6502 is an 8-bit microprocessor designed by MOS Technology in 1975. ... The LynxOS RTOS is a Unix-like real-time operating system from LynuxWorks (formerly Lynx Real-Time Systems). Sometimes known as the Lynx Operating System, LynxOS features POSIX compliance and, more recently, Linux compatibility. ... MenuetOS (also known as MeOS) is an operating system with a monolithic preemptive, real-time kernel, including video drivers, all written in FASM assembly language, for 64-bit and 32-bit x86 architecture computers, by Ville Mikael Turjanmaa. ... MontaVista Software develops systems software, development tools and Embedded Linux-based software targeting consumer electronics which includes automotive electronics, communications equipment, and television set-top boxes and other connected devices and infrastructure. ... Embedded Linux is a Linux based embedded operating system used in cell phones, personal digital assistants, media player handsets and other consumer electronics devices. ... Nucleus RTOS is a real-time operating system (RTOS) and full featured toolset created by Accelerated Technology, the Embedded Systems Division of Mentor Graphics for various CPU platforms. ... For Mac OS 9, see Mac OS 9. ... The Operating System Embedded (mostly known under the acronym OSE), a real-time embedded operating system created by the Swedish firm ENEA. OSE uses signaling in the form of messages passed to and from processes in the system. ... The Phoenix-RTOS is an open source unix-like real-time operating system based on a microkernel, aimed at the embedded systems market. ... Prex is a compact, portable 32-bit embedded real-time microkernel operating system. ... QNX (pronounced either Q-N-X or Q-nix) is a commercial POSIX-compliant Unix-like real-time operating system, aimed primarily at the embedded systems market. ... RTAI stands for Realtime Application Interface. ... RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating system designed for embedded systems. ... RTLinux is an extension of Linux to a Real-time operating system, which was originally developed by V. Yodaiken at the New Mexico Institute of Mining and Technology. ... Wind River Systems, Inc. ... THreadx is an a RTOS made by Mr. ... TRON is an open real-time operating system kernel, and is an acronym for The Real-time Operating System Nucleus. The project was begun by Prof. ... The ITRON project is the first of several sub-architectures of the TRON Project. ... Business TRON (BTRON), is a computer operating system with a graphical user interface (GUI) built upon Central TRON (CTRON), itself a subproject of The Real-time Operating system Nucleus (TRON). ... µClinux (which stands for MicroControllerLinux and is pronounced as you-see-Linux) is a Linux distro operating system for microcontrollers (µCs, embedded systems) without a memory management unit (MMU). ... Unison DSP Operating System (RTOS) Unison RTOS [1] was developed as a runtime for powerful real-time embedded heterogeneous multiprocessors which were used for military signal processing. ... Versatile Real-Time Executive (VRTX) is a real-time operating system nowadays developed and marketed by the company Mentor Graphics. ... This article needs additional references or sources for verification. ... Wind River Systems, Inc. ... The eXtreme Minimal Kernel (XMK) is a real-time operating system (RTOS) that is designed for minimal RAM/ROM footprint. ... Xenomai is a real-time development framework cooperating with the Linux kernel, in order to provide a pervasive, interface-agnostic, hard real-time support to user-space applications, seamlessly integrated into the GNU/Linux environment. ...

Capability-based

• KeyKOS nanokernel
  • EROS microkernel
    • CapROS EROS successor
    • Coyotos EROS successor, goal: be first formally verified OS
• MONADS designed to support the MONADS hardware projects [20].
  • Speedos builds on MONADS ideas
• V from Stanford, early 1980s Capability-Based Computer Systems

KeyKOS is a persistent, pure capability-based operating system. ... EROS (The Extremely Reliable Operating System) is an operating system developed by the University of Pennsylvania and the Johns Hopkins University. ... CapROS [1] (the Capability-based Reliable Operating System) is an open source operating system. ... Coyotos is a secure operating system currently being developed by researchers[1] at the Johns Hopkins Universitys Systems Research Laboratory[2]. Objectives Though it has many objectives, one of the most interesting is to become the first formally verified operating system. ... Program verification is the process of formally proving that a computer program does exactly what is stated in the program specification it was written to realize. ... Also competition briefs, swim briefs, and racing briefs Prince William of Wales wearing a Speedo suit at a water polo match A speedo, which takes its name from the swimsuit brand Speedo, may refer to any briefs-style male swimsuit such as those used in competitive swimming, regardless of the... The V operating system (sometimes written V-System) is a microkernel operating system that was developed by faculty and students in the Distributed Systems Group at Stanford University in the 1980s, led primarily by Prof. ...

LEGO Mindstorms

• BrickOS operating system
• leJOS operating system

brickOS (previously legOS) is an alternative operating system for the Lego Mindstorms RCX Controller. ... leJOS is a firmware replacement for the LEGO Mindstorms programmable RCX controller. ...

See also

• Comparison of operating systems
• Category:Operating systems
• Category:Real-time operating systems
• Category:Embedded operating systems
• Category:Unix
• Category:Free software

These tables compare general and technical information for a number of widely used and currently available operating systems. ...

External links

• A catalog of operating systems