COMPUTER HARDWARE OS MS OFFICE AND NET - Practice Mode

1) Which shortcut key function is used to close the working window on the computer?
Correct Answer: Alt + F4
2) Which device converts digital data from computer into analog data and transmit through telephone line?
Correct Answer: MODEM
3) Which component is used to prevent over voltage of AC supply in SMPS?
Correct Answer: Metal oxide varistor
4) Which component is used to remove the heat generated inside the SMPS?
Correct Answer: Cooler fan
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