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  2. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    Android is a partially open-source operating system closely based on Linux and has become the most widely used operating system by users, due to its popularity on smartphones and, to a lesser extent, embedded systems needing a GUI, such as "smart watches, automotive dashboards, airplane seatbacks, medical devices, and home appliances". [139]

  3. Comparison of real-time operating systems - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_real-time...

    This is an operating system in which the time taken to process an input stimulus is less than the time lapsed until the next input stimulus of the same type. Name

  4. Just enough operating system - Wikipedia

    en.wikipedia.org/wiki/Just_enough_operating_system

    The platform only includes the operating system components required to support a particular application and any other third-party components contained in the appliance (e.g., the kernel). This makes the appliance smaller, faster (to boot and to execute the particular application) and potentially more secure than an application running under a ...

  5. Unix - Wikipedia

    en.wikipedia.org/wiki/Unix

    The operating system was originally written in assembly language, but in 1973, Version 4 Unix was rewritten in C. Ken Thompson faced multiple challenges attempting the kernel port due to the evolving state of C, which lacked key features like structures at the time.

  6. Architecture of Windows NT - Wikipedia

    en.wikipedia.org/wiki/Architecture_of_Windows_NT

    The Windows NT operating system family's architecture consists of two layers (user mode and kernel mode), with many different modules within both of these layers. The architecture of Windows NT, a line of operating systems produced and sold by Microsoft, is a layered design that consists of two main components, user mode and kernel mode.

  7. Windows CE 5.0 - Wikipedia

    en.wikipedia.org/wiki/Windows_CE_5.0

    Windows CE 5.0 is the most open Microsoft operating system to date, though not all of the system is available under shared source agreements. Developers have the freedom to modify down to the kernel level, without the need to share their changes with Microsoft or competitors. Windows CE 5.x is the base OS for Windows Mobile 6.0, 6.1 and 6.5.

  8. Object-oriented operating system - Wikipedia

    en.wikipedia.org/wiki/Object-oriented_operating...

    An object-oriented operating system [1] is an operating system that is designed, structured, and operated using object-oriented programming principles. An object-oriented operating system is in contrast to an object-oriented user interface or programming framework , which can be run on a non-object-oriented operating system like DOS or Unix .

  9. Monolithic kernel - Wikipedia

    en.wikipedia.org/wiki/Monolithic_kernel

    A monolithic kernel is an operating system architecture with the entire operating system running in kernel space. The monolithic model differs from other architectures such as the microkernel [ 1 ] [ 2 ] in that it alone defines a high-level virtual interface over computer hardware .