What is the brain of a computer? What are its sub-components?
The CPU is often referred to as the brain of the computer. CPU carries out the processing of data. It performs arithmetic and logic operations.
The subcomponents of CPU are:
- Arithmetic Logic Unit (ALU) - performs all the arithmetic and logic operations that need to be done as per the instruction in a program.
- Control Unit - controls sequential instruction execution, interprets instructions and guides data flow through the computer’s memory, ALU and input or output devices.
- Registers - Register is a small amount of very fast memory. They are limited in size and number.