MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -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. The modem also translates analog signals back into digital form for the receiving computer.

Detailed explanation-2: -A modem is a hardware device that allows a computer to send and receive data over a telephone line or a cable or satellite connection. MODEM stands for modulator-demodulator.

Detailed explanation-3: -A device that enables your computer to send digital signals via the Internet using a telephone line. The modem converts (or modulates) the digital signal, which doesn’t transmit efficiently over a phone line, into an analog signal that does.

Detailed explanation-4: -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-5: -A router is a communications device that connects multiple computers or other routers together and transmits data to its correct desti-nation on the network. A router can be used on any size of network.