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  2. BIOS - Wikipedia

    en.wikipedia.org/wiki/BIOS

    In computing, BIOS ( / ˈbaɪɒs, - oʊs /, BY-oss, -⁠ohss; Basic Input/Output System, also known as the System BIOS, ROM BIOS, BIOS ROM or PC BIOS) is firmware used to provide runtime services for operating systems and programs and to perform hardware initialization during the booting process (power-on startup). [ 1]

  3. Computer architecture - Wikipedia

    en.wikipedia.org/wiki/Computer_architecture

    Computer architecture. Block diagram of a basic computer with uniprocessor CPU. Black lines indicate control flow, whereas red lines indicate data flow. Arrows indicate the direction of flow. In computer science and computer engineering, computer architecture is a description of the structure of a computer system made from component parts. [ 1]

  4. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    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. It includes external devices such as a monitor, mouse, keyboard, and speakers. [ 1][ 2]

  5. Glossary of computer hardware terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_computer...

    A technology consisting of computer components and recording media used to retain digital data. It is a core function and fundamental component of computers. [1] device memory. local memory associated with a hardware device such as a graphics processing unit or OpenCL compute device, distinct from main memory.

  6. List of computing and IT abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_computing_and_IT...

    FOSDEM —Free and Open-source Software Developers' European Meeting. FOSI —Formatted Output Specification Instance. FOSS —Free and Open-Source Software. FP —Function Programming. FP —Functional Programming. FPGA —Field Programmable Gate Array. FPS —Floating Point Systems. FPU —Floating-Point Unit. FRU —Field-Replaceable Unit.

  7. Memory-mapped I/O and port-mapped I/O - Wikipedia

    en.wikipedia.org/wiki/Memory-mapped_I/O_and_port...

    For the airport in Mexico with the code MMIO, see Saltillo Airport. Memory-mapped I/O ( MMIO) and port-mapped I/O ( PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit (CPU) and peripheral devices in a computer (often mediating access via chipset ). An alternative approach is using dedicated ...

  8. Instruction set architecture - Wikipedia

    en.wikipedia.org/wiki/Instruction_set_architecture

    v. t. e. In computer science, an instruction set architecture ( ISA) is an abstract model that generally defines how software controls the CPU in a computer or a family of computers. [1] A device or program that executes instructions described by that ISA, such as a central processing unit (CPU), is called an implementation of that ISA.

  9. Comparison of instruction set architectures - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_instruction...

    An instruction set architecture ( ISA) is an abstract model of a computer, also referred to as computer architecture. A realization of an ISA is called an implementation. An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between ...