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  2. Comparison of operating systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_operating...

    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.

  3. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    An operating system is difficult to define, [6] but has been called "the layer of software that manages a computer's resources for its users and their applications". [7] ...

  4. List of Microsoft Windows versions - Wikipedia

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

    Timeline showing releases of Windows for personal computers and servers. 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.

  5. Timeline of DOS operating systems - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_DOS_operating...

    This article presents a timeline of events in the history of 16-bit x86 DOS-family disk operating systems from 1980 to present. Non-x86 operating systems named "DOS" are not part of the scope of this timeline.

  6. Real-time operating system - Wikipedia

    en.wikipedia.org/wiki/Real-time_operating_system

    A real-time operating system (RTOS) is an operating system (OS) for real-time computing applications that processes data and events that have critically defined time constraints.

  7. Distributed operating system - Wikipedia

    en.wikipedia.org/wiki/Distributed_operating_system

    Structure of monolithic kernel, microkernel and hybrid kernel-based operating systems. A distributed OS provides the essential services and functionality required of an OS but adds attributes and particular configurations to allow it to support additional requirements such as increased scale and availability.

  8. Monolithic kernel - Wikipedia

    en.wikipedia.org/wiki/Monolithic_kernel

    Structure of monolithic kernel, microkernel and hybrid kernel-based operating systems A monolithic kernel is an operating system architecture with the entire operating system running in kernel space.

  9. Microsoft Windows - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Windows

    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.