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

 

Answer:

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  • 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.  

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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.

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.