Operating System (OS), Graphical User Interface (GUI) and Functions › MCQ Quiz - Class 8 - Operating System › Question #25538
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QWhich part is called the 'brain' of the computer?

ID: #25538 MCQ Quiz - Class 8 - Operating System 2 views
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#25538Q ID
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MCQ Quiz - Class 8 - Operating SystemTopic
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  • A Monitor ✔ ✖
  • B CPU ✔ ✖
  • C Mouse ✔ ✖
  • D Printer ✔ ✖
Correct Answer

Explanation

Correct Answer Explanation:

The CPU (Central Processing Unit) is called the brain of the computer because it performs all arithmetic, logical, and control operations. Every instruction the computer executes passes through the CPU, just as every thought passes through the human brain.

Why the other options are incorrect:

  • Option A: The monitor is only a display device that shows the output — it does not think or process anything.
  • Option C: The mouse is a pointing input device. It sends signals to the CPU but does not process instructions itself.
  • Option D: The printer is an output device that produces hard copies. It has no role in the actual processing of data.
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