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  2. Central processing unit - Wikipedia

    en.wikipedia.org/wiki/Central_processing_unit

    A central processing unit ( CPU ), also called a central processor, main processor, or just processor, is the most important processor in a given computer. [1] [2] Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. [3] [4] [5] This role contrasts with ...

  3. Control unit - Wikipedia

    en.wikipedia.org/wiki/Control_unit

    Control unit. The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. A CU typically uses a binary decoder to convert coded instructions into timing and control signals that direct the operation of the other units (memory, arithmetic logic unit and input and output devices ...

  4. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    Computer hardware. PDP-11 CPU board. Computer hardware comprises 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.

  5. Memory controller - Wikipedia

    en.wikipedia.org/wiki/Memory_controller

    Memory controller. A memory controller, also known as memory chip controller ( MCC) or a memory controller unit ( MCU ), is a digital circuit that manages the flow of data going to and from a computer's main memory. [1] [2] When a memory controller is integrated into another chip, such as an integral part of a microprocessor, it is usually ...

  6. Computer terminal - Wikipedia

    en.wikipedia.org/wiki/Computer_terminal

    IBM 2741, a widely emulated computer terminal in the 1960s and 1970s. (keyboard/printer) A computer terminal is an electronic or electromechanical hardware device that can be used for entering data into, and transcribing [1] data from, a computer or a computing system. [2] Most early computers only had a front panel to input or display bits and ...

  7. Single-board computer - Wikipedia

    en.wikipedia.org/wiki/Single-board_computer

    A single-board computer ( SBC) is a complete computer built on a single circuit board, with microprocessor (s), memory, input/output (I/O) and other features required of a functional computer. Single-board computers are commonly made as demonstration or development systems, for educational systems, or for use as embedded computer controllers.

  8. Harvard architecture - Wikipedia

    en.wikipedia.org/wiki/Harvard_architecture

    Harvard architecture. The Harvard architecture is a computer architecture with separate storage and signal pathways for instructions and data. It is often contrasted with the von Neumann architecture, where program instructions and data share the same memory and pathways. This architecture is often used in real-time processing or low-power ...

  9. Processor (computing) - Wikipedia

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

    Processor (computing) In computing and computer science, a processor or processing unit is an electrical component ( digital circuit) that performs operations on an external data source, usually memory or some other data stream. [1] It typically takes the form of a microprocessor, which can be implemented on a single or a few tightly integrated ...