Central Processing Unit

Central Processing Unit - Introduction

• The central processing unit, often known as the CPU, is the component of the computer that handles the majority of data processing.
• As shown in figure the CPU is made up of three primary components. The register set is used to hold intermediate data that is needed during the execution of instructions. 
• The arithmetic logic unit (ALU) executes the instructions by performing the appropriate micro operations. The control unit controls information transmission between registers and tells the ALU which operation to conduct.
• The CPU is in charge of a variety of tasks that are controlled by computer instructions.
• Computer architecture refers to the structure and behavior of a computer as seen by a programmer using machine language instructions.

Major components of CPU

• This includes instruction formats, addressing modes, the instruction set, and the overall organization of the CPU registers.
• One barrier where the computer designer and the computer programmer see the same machine is the portion of the CPU connected with the instruction set.