fetch-execute cycle - Instructions are fetched one by one from main memory, decoded, then executed by the processor. The cycle repeats until the program is complete., CPU (Central Processing Unit) - A chip within the computer which controls the operation of all parts of the computer and decodes then executes program instructions., ALU (Arithmetic Logic Unit) - The part of the CPU responsible for arithmetic and logical operations., Processor Cache - Highspeed memory built into the CPU. Instructions are copied to cache memory allowing them to be assessed more quickly, therefore increasing the speed of the CPU.,

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