MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -A modulator-demodulator or modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio.

Detailed explanation-2: -modem, (from “modulator/demodulator”), any of a class of electronic devices that convert digital data signals into modulated analog signals suitable for transmission over analog telecommunications circuits.

Detailed explanation-3: -A modem (abbreviated from MOdulation/DEModulation) is a translating device that can convert signals from digital to analog and back. A modem is a device that translates digital signals from a computer into analog form so that they can be transmitted over analog telephone lines.

Detailed explanation-4: -The correct answer is Modem. A Modem is used to transfer the digital signals between the computer and the communications channel.

Detailed explanation-5: -The correct answer is Modem. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.