Registers, fast temporary storage locations on the processor, store data, instructions or addresses being used by the CPU, part of the processor that temporarily stores the answer to a calculation, Arithmetic and Logic Unit, part of the processor used to compare 2 values, carries out calculations e.g. adding / subtracting numbers, performs logical operations using AND / OR / NOT, Control Unit, part of the processor that transfers next instruction from memory, manages the flow of data around the computer, Data Bus, carries data from memory to be used by the processor, carries data from the processor to be stored in memory, Address Bus, tells memory which memory location is being read from, tells memory which memory location is being written to.

N5 CS CPU

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