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_____ is a device that modulates signals to encode digital information and demodulates the signal to decode the transmitted information.

A. Printer)

B. CPU 

C. Keyboard

D. Modem


1. B 
2. C 
3. A 
4. D 

1 Answer

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Correct Answer - Option 4 : D 

The correct answer is D.

  • The modem is a network hardware device that converts digital signals into analog signals and analog signals into digital signals.
  • The modem connects the computer or router to the broadband network.
  • Full-Form of Modem is - 'Modulator–Demodulator'.

 

  • The printer is an 'Output device' and the Keyboard is an 'Input device'.
  • A central processing unit (CPU), is also called a 'central processor'.
  • The CPU processes the input data so it is called 'computer brain'

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