Computer Hardware System Design

The arithmetic/logic unit is the component of the CPU where data is held temporarily and where calculations take place. The control unit controls and interprets the execution of instructions. Most of these actions are retrievals of instructions from memory followed by movements of data or addresses from one part of the CPU to another. The control unit determines the particular instruction to be executed by reading the contents of a program counter (PC), sometimes called an instruction pointer, which is a part of the control unit. The program counter contains the address of the current instruct…