Question 2 - Past Year - 2 Mark Questions - Chapter 10 - Computer Networks

Last updated at July 14, 2026 by

What do you mean by a modem? Why is it used?

 

Answer:

Short Questions -2 - Teachoo.jpg

  • Modem stands for Modulator Demodulator. 
  • It is a device that converts digital signal to analog signal (modulator) at the sender’s side and converts back analog signal to digital signal   (demodulator) at the receiver’s end.  
  • It enables a computer to transmit data over telephone lines.  
Remove Ads Share on WhatsApp

Transcript

What do you mean by a modem? Why is it used? Answer: Modem stands for Modulator Demodulator. It is a device that converts digital signal to analog signal (modulator) at the sender’s side and converts back analog signal to digital signal (demodulator) at the receiver’s end. It enables a computer to transmit data over telephone lines.

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.