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J277 1.1.1

Architecture of the CPU

TermDefinition
FDE Cycle Fetching instructions/data from memory, decoding them into binary and executing the instruction
Von Neuman Architecture Computer system with instructions stored in memory which are fetched by the CPU
Arithmetic Logic Unit Part of the CPU that performs all of the arithmetic and logical functions
Accumulator Stores results of calculations and any data to be used in the calculations by the ALU
Control Unit Part of the CPU that co–ordinates the flow of data within the computer system and executes instructions
Register Fast access part of the processor that stores data being used by the CPU
Memory Address Register CPU component that stores the address of data being accessed in memory.
Memory Data Register Holds the actual data or instruction that has been fetched from memory
Program Counter Holds the memory address of the next instruction to be fetched
Components The devices and parts that make up a computer or device
Execution To run an instruction or set of instructions
Created by: weirdog
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