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ADSL
ADSL is short for asymmetric digital subscriber line, this
is a new technology that allows more data to be moved over
existing copper telephone lines. ADSL supports date rates
from 1.5 to 9 Mbps when receiving data which is called the
downstream rate and from 16 to 640 Kbps when sending data
which is called the upstream rate.
Such rates transform the
existing information network from one limited to voice, text
and low resolution graphics to a powerful, ubiquitous system
capable of bringing multimedia, including full motion video,
to everyone's home this century. The basic and the important
requirement of the ADSL connection is the ADSL modem. ADSL
is growing in its popularity all over the world with a rapid
speed. Unlike regular dialup phone service, ADSL provides
continuously-available, "always on" connection.
The A stands for Asymmetric in the ADSL., which means that
the speed of your connection does not flow equally in both
directions. Data from the ADSL connection is received much
faster from the internet than that of the sent to the
internet. The ADSL is the perfect solution for the Internet
surfing but it is not good for the Web hosting.
An
ADSL circuit is much faster than a regular phone connection,
and the wires which are used for the ADSL are the same as
copper wires, which are used for the regular phone service.
An ADSL circuit must be configured to connect two specific
locations, similar to a leased line.. ADSL is often
considered as an alternative to ISDN, allowing higher speeds
in cases where the connection is always to the same place.
ADSL will play a very vital role over the next few years as
telephone companies, and other Internet service providers,
enter new markets for delivering information in video and
multimedia formats.
By
bringing movies, television, video catalogs, remote CD-ROMs,
corporate LANs, and the Internet into homes and small
businesses, ADSL will make these markets viable, and
profitable, for telephone companies and application
suppliers alike.
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