Modulation Demodulation - A modem(modulator-demodulator) 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 light emitting diodes to radio.
The most familiar example is a voice band modem that turns the digital data of a personal computer into modulated electrical signals in the voice frequency range of a telephone channel. These signals can be transmitted over telephone lines and demodulated by another modem at the receiver side to recover the digital data.
Modems are generally classified by the amount of data they can send in a given time unit, normally measured in bits per second (bit/s, or bps). They can also be classified by the symbol rate measured in baud, the number of times the modem changes its signal state per second. For example, the ITU V.21 standard used audio frequency-shift keying, aka tones, to carry 300 bit/s using 300 baud, whereas the original ITU V.22 standard allowed 1,200 bit/s with 600 baud using phase shift keying.
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.
The definition of MODEM is Modulator-Demodulator
It's a shortened form of the phrase MOdulator DEModulator.
MODEM is an abbreviation for modulator-demodulator.
modulator demodulator
What is the full meaning of MODEN
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The Full Form of Modem is : Modulator-demodulator. It is used to convert analog signals to digital signal and viceversa
Modulator/Demodulator.
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modem means MOdulator and DEModulator. The modem is a converter of analog to digital and digital to analog.010101010 to [[User:117.200.180.23|117.200.180.23]] 09:34, 27 Apr 2009 (UTC)[[User:117.200.180.23|117.200.180.23]].and [[User:117.200.180.23|117.200.180.23]] 09:34, 27 Apr 2009 (UTC)[[User:117.200.180.23|117.200.180.23]] 09:34, 27 Apr 2009 (UTC) to 10101010101.
The purpose of the modem is to modulate and demodulate the electonic analog pulses of the computer to pulses the phone system can handle.Modem is used to connect one or more devices. It is also used to connect internet.the full form of modem is modulator demodulator.
The Full Form of Modem is : Modulator-demodulator. It is used to convert analog signals to digital signal and viceversa
Modem is used to connect one or more devices. It is also used to connect internet.the full form of modem is modulator demodulator.
modem full name
Modulator/Demodulator.
half duplex modem is each station can transmit and receive but not at the same time. full duplex modem is both stations can transmit and receive simultaneously.
modulation and demodulation
The albert hall is full!
Yes it does. It can be in the form of a PCMCIA slot wireless modem or a USB wireless modem.
MODEM
Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission than a conventional modem can provide. A modem which can do such a job is called an ADSL modem.
Modem = modulator-demodulator, and is a tool for tweaking an analog signal so that it can be used in a digital device.
Telephone is Cat3 while the cable coming form the modem is Cat5