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Broadband:
A Broad Term
Broadband is term
that is loosely thrown about in conversation between people when
describing their Internet service. What does broad-band mean?
Ask a
dozen people and you are likely to get a dozen different answers.
The
classic definition of broad band is a high speed transmission over a
single wire or fiber optic line that carries hundreds of channels at
one time.
This is accomplished by multiplexing or
modulating the signal being transmitted on the line.
Broadband is used
primarily to transmit data from one location to another.
There
are many different broadband
options from which to choose. These include:
- Cable
– many channels sent over cable vision line with speeds up to 6 Mbps
- FiOS
(Fiber Optic System) – telephone companies equivalent to cable
- DSL
(Digital Subscriber Line)– many channels sent over the telephone line
with speeds up to 3 Mbps
- Satellite
- usually rural use with speeds up to 2 Mbps
- T1
Line – antiquated telephone line system with speeds up to 1.5 Mbps
- Wi-Fi
– wireless system, many channels transmitted with speeds up to 2 Mbps
- ADSL
(Asymmetric Digital Subscriber Line) – commonly referred to as DSL
upload speed is slower than download
- SDSL
(Symmetric Digital Subscriber Line) – better than ADSL & DSL
because upload and download speeds are the same
- Leased
Lines – chosen by large corporations and universities because of large
volume of data being transmitted over fiber optic line
Another
way of looking at broad-band is that it uses a wide range of
frequencies
to send multiple signals at the same time.
Think of a multiple lane
highway, broad-band works the same way. The size of the broad-band is
based on the width of the highway to accommodate a specific number of
users.
This brings us to another term that is
commonly used with broad-band and that is bandwidth. Bandwidth is the
amount of data that travels through the broad-band line.
This is
referred to as bits per second (bps) or packets of information that
move along the multi channels of the broadband line or the highway.
If
it is not rush hour, you do not notice any slowdown in the bits or
packets of information you are sending or receiving.
But if is rush
hour you will notice a slow down as millions of bits of information
sharing the same line try to get to and from a location and then a
traffic jam occurs, just like a highway.
- Usually occurs in afternoons and evenings when
teenagers are home from
school and also during heavy business traffic time.
- When you are using DSL and slower Cable speeds.
- Experienced when you are trying to access a
popular website or trying
to access a website to be one of the first in line to buy tickets to a
popular concert.
- Evidenced by a slow down in loading of a
website you are trying to
access, while many people are trying to access it at same time.
- Also noticeable when downloading images that
take a long time, because
of a narrow band width.
Occasionally you will hear
bits per
second (bps) are referred to as:
If
you are a small business or home user you will normally need less than
1 GB of bandwidth access to support your broad-band applications.
Large
business or small businesses that send and receive lots of data will
need access to a larger bandwidth.
For
additional broadband tv
related issues, such as the broadband technology section here, please
check out the
following topics: Internet
television,
live news video,
streaming
stock quotes and streaming television.
And
for more streaming media
info, don't
forget to visit the streaming
media hosting, streaming
server,
online
video sharing, video teleconference, video webcasting and digital
media sections.


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