Which of the following is an input device primarily used for entering text and commands into a computer? MCQ with Answer and Explanation

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Which of the following is an input device primarily used for entering text and commands into a computer?

A. Speaker

B. Printer

C. Monitor

D. Keyboard

Answer: Option D

Solution (By JKSSB Mock Tests)

Keyboard is a primary input device used for typing text and commands. Monitors and printers are output devices, while speakers output audio.

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A joystick is mainly used in:

A. Gaming and simulation

B. Document scanning

C. Office data entry

D. Printing

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Correct Answer: Option A

Explanation:
Joysticks provide precise control in games.

This question belongs to: Computer Computer Hardware

Question #2

Modern keyboards often feature:

A. No keys

B. RGB backlighting and programmable keys

C. Fixed layout only

D. Only mechanical

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Correct Answer: Option B

Explanation:
Customization for gamers and professionals.

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Question #3

The speed of a processor is measured in:

A. Pixels

B. Bytes

C. Hertz (Hz)

D. DPI

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Correct Answer: Option C

Explanation:
Clock speed of CPU is measured in GHz (gigahertz).

This question belongs to: Computer Computer Hardware

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