answersLogoWhite

0


Best Answer

A modem (which stands for Modulator-Demodulator) converts digital data from the computer to analog data compatible with the telephone system. The analog signal is converted back into digital data on the other end of the call.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is a modem needed for analog telephone lines?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What hardware is needed to convert the digital signal of the computer to signals that can be transmitted through telephone lines?

modemmo-dem =MOdulatorDEModulator


What is a device that allows computers to communicate with one another via telephone or cable lines?

A modem. Modem is short for mudulator/demodulator. Telephone lines use analog signals which your computer cannot interpret. When analog signals reach a modem however, they are converted to digital signals and then passed to the computer. When sending data, this process is reversed.


Whatis the function of modem?

MOdulate/DEModulate. It converts digital computer signals into analog ones for transmission over analog telephone lines, and then converts the signal back into digital on the other end.


Meaning of modem?

Modem in fact acts as an interpreter. When computer exchanges datas with other computers in internet,it has to take the assistance of telephone. But computer understands digital signal whereas telephone analog signal. For making reconciliation between the two requires one interpreter who can convert analog to digital and digital to analog. Modem's activity is to convert analog signal from telephone to digital understood by computer and vice verse.


What Technology used to modify analog signals to make them suitable for carrying data over a communication path?

MODEM (Modulator - Demodulator)modulates Digitals signals to Analog to send over Telephone lines and Demodulates Analog signals in Digital Signals.


What device do you need to be able to communicate with other computers using the telephone network?

MODEM (Modulator - Demodulator) allows communication between computers.Generally Modem connects to ISP over analog telephone line and further ISP connects to Computers over Internet.


What device changes digital computer data into analog data that can be sent over phone lines?

A modem performs this function. A modem converts digital information to analog information to transmit a signal over phone lines. The process of converting this signal in this manner is modulation. They also convert analog information back to digital information to receive data. This is called demodulation. The name modem is a combination of the words modulator-demodulator.


What is modem and how does it relate to Dial-Up connection?

"MODEM" stands for "modulate/demodulate" The modem changes digital signals into analog tones that can be sent across a telephone wire.


Is modem portable or not?

Modem is attached in the broadband connection,acting as interpreter .It converts analog signal from telephone to digital,and computers' digital signal to telephone's analog. However,now a days, simply by inserting a pen drive into the computer, we get internet connection,without modem.


What portion of the telephone network still depends on analog signals?

Analog data transmissions occurs every time you log onto the internet using your pc, your modem, and your telephone line.


Why do you use modem?

modem means modulator demodulator. it converts digital signal to analog signal. it is use to transmit computer signal (digital signal) over the telephone line to communicate to other computers. modem converts the computer digital signal into frequency (analog signal) so that it can transmit over the telephone line and at the receiving end the modem converts the analog signal back to digital for the receiving computer to understand it.


Is the transmitting and receiving of data over telephone lines with the use of a modem?

fax