A modem transmits data by modulating one or more carrier wave signals to encode digital information, while the receiver demodulates the signal to recreate the original digital information. The goal is to produce a signal that can be transmitted easily and decoded reliably..
What is data compression in modem?
Data compression is the ability of the modem to take data in from the computer, reduce it in volume, and then send it out via the modem. Error correction protocols are the ways that the modems have to protect against errors, even in the face of a poor quality phone line.Jan 18, 2018.
What is the role of modem in data communication?
The primary function of a modem is to modulate digital signals into analog signals for transmission over traditional analog communication channels. Modulation involves encoding digital data onto a carrier analog signal, allowing it to traverse through telephone lines or radio frequencies..
Jan 18, 2018Data compression is the ability of the modem to take data in from data compression, since the files are already compressed. The modem's
Data compression is the ability of the modem to take data in from the computer, reduce it in volume, and then send it out via the modem. Error correction protocols are the ways that the modems have to protect against errors, even in the face of a poor quality phone line.
Why do routers need a high compression ratio?
Routers must also support other functions such as:
management
security
protocol translations; compressing large amounts of data can slow down router performance and cause network latency
The highest compression ratio is usually reached with highly compressible text files.
What is data compression in Cisco IOS?
These compress data on a per-connection basis or at the network trunk level
Compression can take place on an entire-packet, header-only, or payload-only basis
The success of these solutions are easy to measure via compression ratio and platform latency
Cisco IOS software supports the following data compression products:
What is modem data compression?
Modem data compression is used most often for it, and the most popular compression protocol V
42bis serves exactly this purpose
A sending modem traces a data stream, and if data are compressible, it compresses them and then transfers them via a telephone network in a packed form
Modem data compression is used most often for it, and the most popular compression protocol V.42bis serves exactly this purpose. A sending modem traces a data stream, and if data are compressible, it compresses them and then transfers them via a telephone network in a packed form. A receiving modem unpacks data and transfers them to a computer.
Link Access Procedure for Modems (LAPM) is part of the V.42 error correction protocol for modems.
Modem data compression
Device that modulates an analog carrier signal to encode digital information
A modulator-demodulator or modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio. A modem transmits data by modulating one or more carrier wave signals to encode digital information, while the receiver demodulates the signal to recreate the original digital information. The goal is to produce a signal that can be transmitted easily and decoded reliably. Modems can be used with almost any means of transmitting analog signals, from light-emitting diodes to radio.
