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CBSE Class 12 Informatics Practices Question 17 of 40

Practice Paper — Question 17

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Question

Question 17

Assertion (A). MODEM stands for modulator-demodulator.

Reasoning (R). It is a computer hardware device that converts data from a digital format to analog and vice versa.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

Both A and R are true and R is the correct explanation of A.

Explanation
MODEM stands for modulator-demodulator. It is a computer hardware device that allows connecting and communicating with other computers via telephone lines. It converts digital data from a computer into analog signals suitable for transmission over telephone lines, and vice versa, converting incoming analog signals back into digital data that the computer can understand.