Abbreviation for central processing unit, and pronounced as separate letters. The CPU is the brains of the computer. Sometimes referred to simply as the central processor,but more commonly called processor, the CPU is where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system.
it has 3 parts
1)Memory unit: It stores vital information.such as computer language codes.It has 2 parts.
a)Ramdom access memory
b)read only memory
2)The arithmetic logic unit (ALU), which performs arithmetic and logical operations.
3)The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.