NCO Sample Paper-9 -

6.

NCO

What is the function of a computer's power supply unit (PSU)?

To store and retrieve data

To provide power to the computer

To display images on the screen

To connect external devices

7.

NCO

Which of the following is an input device?

Printer

Monitor

Keyboard

Speakers

8.

NCO

What is the purpose of a computer's sound card?

To store and retrieve data

To provide audio output

To display images on the screen

To control the cursor on the screen

9.

NCO

What is the purpose of a computer's CD/DVD drive?

To store and retrieve data

To display images on the screen

To provide audio output

To control the cursor on the screen

10.

NCO

What is the purpose of a computer's monitor?

To store and retrieve data

To provide audio output

To display images and text

To control the cursor on the screen