What does a CPU mainly include?

cpu mainly includes arithmetic units and controllers. The controller consists of a program counter, an instruction register, an instruction decoder, a timing generator and an operation controller. It is responsible for coordinating and directing the operations of the entire computer system.

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Detailed introduction:

Basic composition of computers Including central processing unit, memory, and common I/O devices. The CPU is the control center of the computer and is mainly composed of arithmetic units, controllers, register sets, internal buses and other components.

The controller is composed of a program counter, an instruction register, an instruction decoder, a timing generator and an operation controller. It is the "decision-making mechanism" that issues commands, that is, it coordinates and directs the operations of the entire computer system.

Its main functions are: fetch an instruction from the memory and indicate the location of the next instruction in the memory; decode or test the instruction and generate the corresponding operation control signal to start the specified Action; directs and controls the flow of data between the CPU, memory, and input and output devices.

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