BUA 101 Chapter Notes - Chapter 2: Graphics Processing Unit, Ieee 1394, Arithmetic Logic Unit
16 May 2019
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Document Summary
Hardware: physical components of a computer that process data. Peripheral devices: components that serve the input, output, and storage functions. Central processing unit (cpu): processor; brain of the computer; inside motherboard: arithmetic logic unit (alu): performs arithmetic and logic calculations, control unit: manages movement of data through cpu. Instruction cycle: machine cycle; cpu uses this to process each instruction through 4 steps (fetch, decode, execute, and store). Clock speed: speed at which the cpu executes the cycles; billions of cycles per sec (gigahertz/ghz). Multi-core processor: two or more processors that are integrated on a single chip. Graphics processing unit (gpu): video card s processor; multiple cores. Pipelining: method that a cpu uses to process multiple instructions simultaneously. Parallel processing: uses multiple processors or multi-core processors to divide up processing tasks; can dramatically increase computer performance when running processor intensive programs (system scans or multiple programs). Heat sink: keeps processor from overheating by drawing heat away from cpu.
