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  2. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    An operating system ( OS) is system software that manages computer hardware and software resources, and provides common services for computer programs . Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and ...

  3. Linux - Wikipedia

    en.wikipedia.org/wiki/Linux

    Linux is the leading operating system on servers (over 96.4% of the top one million web servers' operating systems are Linux), [26] leads other big iron systems such as mainframe computers, and is used on all of the world's 500 fastest supercomputers [d] (as of November 2017, having gradually displaced all competitors). [27] [28] [29]

  4. Comparison of operating systems - Wikipedia

    en.wikipedia.org/.../Comparison_of_operating_systems

    These tables provide a comparison of operating systems, of computer devices, as listing general and technical information for a number of widely used and currently available PC or handheld (including smartphone and tablet computer) operating systems. The article "Usage share of operating systems" provides a broader, and more general, comparison ...

  5. How to Find Out if You Have the Most Updated Operating System

    www.aol.com/.../blog/most-updated-operating-system

    Windows 10. Windows 7. Apple MacOS. How to find the operating system for a Windows Machine. Method 1: Using System Information. Press Windows + R: Open the Run dialog by pressing the "Windows" key ...

  6. List of operating systems - Wikipedia

    en.wikipedia.org/wiki/List_of_operating_systems

    EOS – developed by ETA Systems for use in their ETA-10 line of supercomputers. EMBOS – developed by Elxsi for use on their mini-supercomputers. GCOS – a proprietary operating system originally developed by General Electric. MAI Basic Four – An OS implementing Business Basic from MAI Systems.

  7. macOS - Wikipedia

    en.wikipedia.org/wiki/MacOS

    At macOS's core is a POSIX-compliant operating system built on top of the XNU kernel, [81] (which incorporated large parts of FreeBSD kernel [14]) and FreeBSD userland [14] for the standard Unix facilities available from the command line interface. Apple has released this family of software as a free and open source operating system named Darwin.

  8. Microsoft Windows - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Windows

    Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.It is grouped into families and sub-families that cater to particular sectors of the computing industry – Windows (unqualified) for a consumer or corporate workstation, Windows Server for a server and Windows IoT for an embedded system.

  9. Comparison of user features of operating systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_user...

    MS-DOS (acronym for Microsoft Disk Operating System) is an operating system for x86-based personal computers mostly developed by Microsoft.Collectively, MS-DOS, its rebranding as IBM PC DOS, and some operating systems attempting to be compatible with MS-DOS, are sometimes referred to as "DOS" (which is also the generic acronym for disk operating system).