Question

3. Give reasons.
(a) Why do we need output devices?
(b) Why do we need secondary memory?
(c) Why CPU is called the brain of computer?why do you need output device ​

Answer 1

3. Give reasons.

(a) Why do we need output devices?

ans:- We need an output device because it is used to send data from a computer to another device or user.

(b) Why do we need secondary memory?

ans:- Secondary memory have large capacity needed to store operating system and programs and all files needed by modern computer system.

(c) Why CPU is called the brain of computer?

ans:- CPU or Central Processing Unit is called the brain of the computer because all the inputs from the devices comes to it and it processes the information and sends the output to the device and everything is stored in it which helps on the functioning of the computer.

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