what is modem?

Answer 1

I can give you a huge answer but let's make it easy, a modem is what let you go online, that means that it connects your computer with the Internet, the modem is connected to a phone line, a cable line, a fiber optic line or a satellite system, you receive the signal from your ISP (Internet Service Provider) and there are lots of speeds, the best option is DSL, because your connection will be just for you, but, for example, with cable service you should share your connection with all your neighbors.

Hope that this answer helps you!

Answer 2

Short for modulator-demodulator. 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. A modem converts between these two forms.

Fortunately, there is one standard interface for connecting external modems to computers called RS-232. Consequently, any external modem can be attached to any computer that has an RS-232 port, which almost all personal computers have. There are also modems that come as an expansion board that you can insert into a vacant expansion slot. These are sometimes called onboard or internal modems.

Answer 3

A modem (from modulate and demodulate) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. Modems can be used over any means of transmitting analog signals, from driven diodes to radio. Experiments have even been performed in the use of modems over the medium of two cans connected by a string.

Answer 4

A modem (from modulate and demodulate) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. Modems can be used over any means of transmitting analog signals, from driven diodes to radio. Experiments have even been performed in the use of modems over the medium of two cans connected by a string.[citation needed]

The most familiar example is a voiceband modem that turns the digital '1s and 0s' of a personal computer into sounds that can be transmitted over the telephone lines of Plain Old Telephone Systems (POTS), and once received on the other side, converts those sounds back into 1s and 0s. Modems are generally classified by the amount of data they can send in a given time, normally measured in bits per second, or "bps".

Faster modems are used by Internet users every day, notably cable modems and ADSL modems. In telecommunications, "radio modems" transmit repeating frames of data at very high data rates over microwave radio links. Some microwave modems transmit more than a hundred million bits per second. Optical modems transmit data over optical fibers. Most intercontinental data links now use optical modems transmitting over undersea optical fibers. Optical modems routinely have data rates in excess of a billion (1x109) bits per second.

Answer 5

Hello Dear..

Modem is an connecting device which connect your computer with internet service provider server which allow you to enter in the dynamic world of internet. But you should know also about that modem connect with your Telephone line not from any wiereless device.

Muhammad Fahd

Answer 6

A modem (from modulate and demodulate) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. Modems can be used over any means of transmitting analog signals, from driven diodes to radio.

Answer 7

.

The expansion of Modem is Modulator -
Demodulator.

We use telephone lines to transfer data to the internet. The data are in the digital form. But telephone lines can carry only anolog form data. So a device called modem is used, which converts the outgoing digital data into analog data and the incoming analog data into digital data.

For further into visit the below site.

http://www.webopedia.com/TERM/m/modem.html

**********
Vasu M
**********

Answer 8

modem is a device used to connect to internet thru home phone line. Modem will change the computer digital signal to analog thru phone cable and vice versa.this process important because ur computer cant understand analog signal while telephone line cant carry digital signal.

Answer 9

modem is the device which will do modulation and demodulation .ur telepone line data in analog and u r computer understand digital signals .so modem converts analog signals into digital signals so if u connetcting internet throw telephone or wireless device it will the process of modulation and demodulation.
bye
vilas and pramod

Answer 10

Modem is a device attached to computers that can convert digital signals to analog signals and visa-varsa.Modem is the short name for MODULATOR-DEMODULATOR where modulator converts digital signals to analog signals and demodulator converts analog to digital signals.It's a device that enables computer , facsimile machines and other equipment to communicate with each other across telephone lines or over cable telivision network cables