Which part is the brain of the computer?
Last updated May 30, 2026
Correct Answer:
Option A —
CPU
Why the CPU is the "Brain"The CPU (Central Processing Unit) is responsible for executing instructions, processing data, and managing the flow of information between all other hardware components. Just like the human brain, it performs all the critical calculations and logical decisions required for the system to function.
Functions of the Components:
CPU (Central Processing Unit): Fetches, decodes, and executes program instructions. It consists of the ALU (Arithmetic Logic Unit) and the CU (Control Unit).
Monitor: An output device that visually displays the information processed by the CPU.
RAM (Random Access Memory): The temporary, volatile memory used by the CPU to store data currently in use for quick access.
ROM (Read-Only Memory): Permanent, non-volatile memory that contains the essential bootstrap instructions (BIOS) needed to start the computer.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
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