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Communication Technology — Information Technology STD 9 — Question

CBSE BoardEnglish MediumSTD 9Information TechnologyCommunication Technology1 Mark
MCQ
Modulation and demodulation is performed by
  • A
    Microwave
  • B
    Satellite
  • ✓
    Modem
  • D
    Fibre optic
✓

Answer

Correct option: C.
Modem
 Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.

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