CPU parts 0.0 / 5 ? ComputingFundamentals of computer systemsA2/A-levelAll boards Created by: emily355Created on: 31-10-16 20:33 Program Counter Indicates where a computer is in its program sequence 1 of 8 Memory Address Register Holds the address of the next peice of data to be taken from memory 2 of 8 Memory Data Register Holds data that has been fetched from memory and data that needs to be put into memory 3 of 8 Current Instruction Register Holds the current instruction being executed 4 of 8 Accumulator Stores data while processes are being carried out 5 of 8 Arithmentic Logic Unit Carries out mathematical operations 6 of 8 Control Unit Tells the memory, ALU and Input/ Output devices how to repsond to a programs instructions 7 of 8 Memory Unit Usually RAM or ROM and is the prinicpal storage of the computer. It holds all data and intructions and any data that is inputted. 8 of 8
1.1 The characteristics of contemporary processors, input, output and storage devices 5.0 / 5 based on 2 ratings
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