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  2. History of operating systems - Wikipedia

    en.wikipedia.org/wiki/History_of_operating_systems

    Early operating systems were very diverse, with each vendor or customer producing one or more operating systems specific to their particular mainframe computer. Every operating system, even from the same vendor, could have radically different models of commands, operating procedures, and such facilities as debugging aids.

  3. Timeline of operating systems - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_operating_systems

    Concise Microsoft O.S. Timeline – a color-coded concise timeline for various Microsoft operating systems (1981–present) Bitsavers – an effort to capture, salvage, and archive historical computer software and manuals from minicomputers and mainframes of the 1950s, 1960s, 1970s, and 1980s

  4. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    Microsoft Windows is a computer operating system developed by Microsoft. It was first launched in 1985 as a graphical operating system built on MS-DOS. The initial version was followed by several subsequent releases, and by the early 1990s, the Windows line had split into two separate lines of releases: Windows 9x for consumers and Windows NT ...

  5. History of Unix - Wikipedia

    en.wikipedia.org/wiki/History_of_Unix

    At this stage, the new operating system was a singletasking operating system, [3] not a multitasking one such as Multics. The name Unics (Uniplexed Information and Computing Service, pronounced as " eunuchs "), a pun on Multics (Multiplexed Information and Computer Services), was initially suggested for the project in 1970.

  6. List of operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_operating_systems

    This is a list of operating systems. Computer operating systems can be categorized by technology, ownership, licensing, working state, usage, and by many other ...

  7. History of software - Wikipedia

    en.wikipedia.org/wiki/History_of_software

    Unix was an early operating system which became popular and very influential, and still exists today. The most popular variant of Unix today is macOS (previously called OS X and Mac OS X), while Linux is closely related to Unix.

  8. MS-DOS - Wikipedia

    en.wikipedia.org/wiki/MS-DOS

    MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system. [5] IBM licensed and re-released it in 1981 as PC DOS 1.0 for use in its PCs.

  9. Unix - Wikipedia

    en.wikipedia.org/wiki/Unix

    This new operating system was initially without organizational backing, and also without a name. The new operating system was a single-tasking system. [17] In 1970, the group coined the name Unics for Uniplexed Information and Computing Service as a pun on Multics, which stood for Multiplexed Information and Computer Services.