Modem

Modem - a modem is used to translate information transferred through telephone lines, cable or line of

site wireless connection.

Shelf stands for modulate and demodulate the signal from analog to digital change, using computers, in

which use of phones and then back. Digital modem direct transfer of digital information, without

changing the analog.

Modems are measured by the speed that information is transferred. This tool is called the Baud rate

dimensions. Initially work quickly under the 2400 Baud modem speed but are analogous to today's

standards 56.000. Cable, wireless or digital subscriber line can transfer more information faster to

300000 Baud rates and above.

Modems use error correction, which corrects for transmission errors by constantly check whether the

information was received correctly or not, and compression, which allows faster data transfer speed.

Information is transferred in packets. Each package is checked for errors and re-sent if there is an

error.

Anyone who has used the Internet have noticed that sometimes the information travels at different

speeds. Depending on the amount of information that is transferred, the information will arrive at the

destination in time is different. The amount of information that can travel through the line is limited.

This restriction is called traffic.

There are many other variables associated with communication technology using computers, much of which

is covered on the Internet.