NCO Sample Paper-10 -

1.

[NCO]

What is the purpose of a computer's CPU (Central Processing Unit)?

To store and retrieve data

To provide audio output

To execute instructions and perform calculations

To control the cursor on the screen

2.

[NCO]

What is the purpose of a computer's operating system?

To create documents and presentations

To protect against viruses

To manage computer hardware and software resources

To connect to the internet

3.

[NCO]

Which of the following is an example of an output device?

Scanner

Mouse

Printer

4.

[NCO]

What is the function of a computer mouse?

To display images and text

To control the cursor on the screen

To provide audio output

To store and retrieve data

5.

[NCO]

What is the purpose of a computer's keyboard?

To display images and text

To control the cursor on the screen

To provide audio output

To input text and commands