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Railways PYQCBT 1 2016

RRB NTPC · Question 50

Which of the following does computing in a personal computer? A. CPU B. Motherboard C. RAM D. BIOS

  1. B

  2. A

  3. D

  4. C

Show answer & explanation

Answer: (B) A

Explanation

The Central Processing Unit (CPU) carries out all the arithmetic, logic and control operations of a computer, which is why it is called the brain of the computer. The motherboard connects components, RAM stores data temporarily, and BIOS starts the system.