Question

What is modem and what its funciton...??​

Answer 1

Explanation:

Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize.

Answer 2

$\huge\mathtt\purple{ANSWER♡}$

Modem is short for "Modulator-Demodulator." It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognise. Similarly, it converts digital data from a computer or other device into an analog signal that can be sent over standard telephone lines.

$\huge\mathtt\blue{FUNCTION \: \: \ OF \: \: \: MODEM}$

☞ Function to be perform at transmitting end:

1. Take the data from RS-232 interface.
2. Convert the data (Os and Is) into appropriate analog signal. Perform the line control and signaling to other end of phone line.
3. Send the dialing signal if modem is design to dial without presence of user.
4. Have protection against the line overload and other problem.