A modem is a device that:
AStores data
BModulates and demodulates signals for communication
CPowers computer
DDisplays images
Answer & Solution
Correct answer: B. Modulates and demodulates signals for communication
1. Modem = modulator + demodulator.
2. It converts digital signals to analog for transmission and back.
3. Hence option B.
_Source: UGC NET Paper 1 Study Book (ugc-net.com class notes) — Networking Devices_