What is the main function of I/O ports? MCQ with Answer and Explanation

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What is the main function of I/O ports?

A. Cooling the system

B. Connecting input and output devices

C. Storing programs

D. Processing data

Answer: Option B

Solution (By JKSSB Mock Tests)

Ports like USB, HDMI allow device connectivity.

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Which device uses toner for printing?

A. Thermal

B. Laser

C. Dot Matrix

D. Inkjet

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Correct Answer: Option B

Explanation:
Laser printers use toner powder.

This question belongs to: Computer Computer Hardware

Question #2

Which component manages interrupts in the system?

A. Memory controller

B. ALU

C. Interrupt controller or APIC

D. Graphics controller

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Correct Answer: Option C

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Handles device requests.

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Question #3

Cloud-ready printers support:

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B. No network

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D. Offline only

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Correct Answer: Option C

Explanation:
Convenient remote access.

This question belongs to: Computer Computer Hardware

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