unit 2 computing 3.0 / 5 based on 1 rating ? ICTCPU RegistersBTEC NationalEdexcel Created by: JRDS1234!Created on: 12-04-17 12:50 ALU Arithmetic Logic Unit: This does all of the computers mathematical and logic aspects. 1 of 6 MAR Memory Address Registers: This registers which instructions hav been fetched and completed and which have not. 2 of 6 Instruction Register This holds all of the instructions that have not been fetched. 3 of 6 Program Counter This counts how many instructions have been fetched and completed. 4 of 6 Address Bus transfers data between the physical memory and the memory storage 5 of 6 Memory Data Register controls the data that is stored in the CPU 6 of 6
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