about Computer Processor (CPU) and Arithmetic Logic Unit (ALU) — a set of electronic circuits that carries out basic arithmetic operations such as addition, subtraction, and bit manipulations. Registers / Cache — memory locations that are built right on the CPU chip. Control Unit (CU) — A set of circuits that take care of fetching data and instructions from memory, as well as controlling the flow of data back and forth between the registers and ALU.

how computer processors work

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