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  2. Operating system - Wikipedia

    en.wikipedia.org/wiki/Operating_system

    An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.

  3. x86 - Wikipedia

    en.wikipedia.org/wiki/X86

    The x86 architectures were based on the Intel 8086 microprocessor chip, initially released in 1978. Intel Core 2 Duo, an example of an x86-compatible, 64-bit multicore processor AMD Athlon (early version), a technically different but fully compatible x86 implementation

  4. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    PDP-11 CPU board. Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case.

  5. User interface - Wikipedia

    en.wikipedia.org/wiki/User_interface

    The Xfce desktop environment offers a graphical user interface following the desktop metaphor.. In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur.

  6. Bus (computing) - Wikipedia

    en.wikipedia.org/wiki/Bus_(computing)

    Four PCI Express bus card slots (from top to second from bottom: ×4, ×16, ×1 and ×16), compared to a 32-bit conventional PCI bus card slot (very bottom). In computer architecture, a bus [1] (historically also called data highway [2] or databus) is a communication system that transfers data between components inside a computer, or between computers.

  7. Classes of computers - Wikipedia

    en.wikipedia.org/wiki/Classes_of_computers

    Minicomputers (colloquially, minis) are a class of multi-user computers that lie in the middle range of the computing spectrum, in between the smallest mainframe computers and the largest single-user systems (microcomputers or personal computers).

  8. Computer program - Wikipedia

    en.wikipedia.org/wiki/Computer_program

    A computer program is a sequence or set [a] of instructions in a programming language for a computer to execute.It is one component of software, which also includes documentation and other intangible components.

  9. Central processing unit - Wikipedia

    en.wikipedia.org/wiki/Central_processing_unit

    A central processing unit (CPU) is the primary component of a computer that performs most of the processing inside a computer.