_______, also known as the 'brain' of the computer, performs data processing.

Correct option is D

The Central Processing Unit (CPU) is referred to as the "brain" of the computer because it is responsible for performing all data processing tasks. The CPU executes instructions, performs calculations, and manages data flow within the system, enabling the computer to function efficiently.
Important Key Points:
1. The CPU is composed of two primary components: the Arithmetic Logic Unit (ALU) for calculations and the Control Unit (CU) for instruction management.
2. It interprets and executes instructions from software applications and the operating system.
3. Modern CPUs have multiple cores, enabling parallel processing for improved performance.
Knowledge Booster:
· Motherboard: The main circuit board that connects all hardware components but does not process data itself.
· Memory: Refers to storage components like RAM and ROM, which temporarily or permanently store data but do not execute instructions.
· RAM: A type of volatile memory that stores data temporarily for quick access by the CPU.