Which of the following is called the brain of the computer?

Answer: CPU — The CPU (Central Processing Unit) is called the brain of the computer because it executes instructions, performs calculations, and controls and coordinates all other hardware components.

• CPU: Executes program instructions, performs processing, and manages hardware — hence the brain of the computer.

• Control Unit (CU): A part of the CPU that directs operations and coordinates how instructions are carried out.

• Arithmetic Logic Unit (ALU): A component inside the CPU that performs arithmetic and logical operations.

• Visual Display Unit (VDU): The monitor that displays output; it does not process instructions.