2. The bandwidth of a transmitted communications signal is a measure of
the range of frequencies. The signal bandwidth is directly proportional to
the amount of data transmitted or received per unit time. In a qualitative
sense, bandwidth is proportional to the complexity of the data for a given
level of system performance. For example, it takes more bandwidth to
download a photograph in one second than it takes to download a page of
text in one second. Large sound files, computer programs, and animated
videos require still more bandwidth for acceptable system performance
occupies. In digital systems, bandwidth is data speed in bits per second
(bps).
To simplify it, Bandwidth is mainly the amount of data that can be
transmitted in a certain amount of time.
Its measured in bits per second or bytes per second (bps).
3. The internet , is a group of millions of computers which are
connected by networks. The connection within the internet are
able to either be large or small ( depending on the cable &
equipment used at a “particular internet location”.) So according to
the size of these connections determines how much bandwidth is
available.
Example: By connecting to the internet you have a DSL connection
and have therefore ‘dedicated’ bandwidth between your computer
and your internet provider. Now your internet provider obviously
has a number of DSL connections to their particular location and so
all these connections then amount to a whole at that internet
provider who then have either their own or (multiple) connections
which is larger than your 1 single connection. That particular
internet provider must have enough bandwidth to service your
needs as well as others. So say that you have 1.54 MB of bandwidth
but the internet provider will have like 255MB , this is so it can
share MB among yourself as well as other users to cater for
computing needs associated with the internet.
4.
5. Bandwidth To furthermore understand bandwidth and ‘traffic' ( basically number
is like the of bits that are transferred on network connections)think of highways
size and and cars.
Bandwidth is the number of lanes on the highway and traffic is the
quality of
number of cars on the highway. Being the only car on the highway you
roads. can travel quickly, nothing is there to slow you do down. But say you are
stuck in a traffic jam , you are going to be travelling much more slowly as
all the lanes are taken up.
More Example: Downloading an MP3 file from a website, you can create 4MB
vehicles, m traffic between the website and your computer. The transfer of this file
ore may occur quickly or slowly , this depends on network connection. Now
bandwidth say that website has a 10MB bandwidth connection to the internet and
used. 3 other people are downloading a file from that website at the very same
time, it is going to be 4×3=12MB traffic and therefore that is 2 MB more
than the website connection and so one person will have to wait. So a
Bigger and
small proportion goes to each downloader until they have got the whole
better road 4MB and this can take quite a long time.
more There is a solution- The host(website) could increase their bandwidth
traffic it of their internet connection.
can * Imagine if 50 people were downloading. Sooooooooos slowwww!
handle.
6. There are no specific types of bandwidth but it is commonly referred to
as:
-Digital
-Analogy
-Network
Digital
For digital signals , the bandwidth is either the data speed or rate, which
is measured in bits per second (bps)
Analogy
For analogy signals, it is the difference between the highest and lowest
frequency components.
Extra Information
-Bandwidth Cap
-Bandwidth extension
-Bandwidth test
-Bandwidth theft
-Bandwidth management
-Bandwidth throttling
- Bandwidth allocation ( Bandwidth allocation protocol, and dynamic
bandwidth allocation)
7. Bandwidth is commonly used in computers and is usually
found in TCP/IP( Which is a protocol for communications
between computers it is also used for transmitting data
over a network and is ‘the basis for standard internet
protocols.’
As mentioned before Bandwidth is associated with the
internet and it is needed download a photograph, Large
sound files, computer programs, and animated videos .
Anything you want to download will require an amount of
bandwidth!
9. For more Information on Bandwidth visit these websites
Bandwidth Facts
http://www.1ahosting.com/bandwidth-facts/
Test The Speed Of Your Bandwidth
http://www.zdnet.com.au/broadband/speedtest.htm?omnRef=http://www.googl
e.com.au/search?hl=en&q=bandwidth%20test&meta=&aq=0&oq=bandwidth
11. WORKSHEET
1. FIND-A-WORD (Website):
http://www.armoredpenguin.com/wordsearch/Data/2009.06/0902/09024822.552.htm
l
2. CLOSED PASSAGE:
Complete this closed passage, using the words provided.
1. It takes _______ bandwidth to download a __________ in one second than it takes to
download a ___________ in one second.
2. ___________ is mainly the __________ of data that can be _____________ in a certain
amount of time.
3. Its measured in ______________ or ______________ (bps).
4. The ___________ , is a group of _________of computers which are connected by
____________.
5. ____________of connections determines how much ___________is available.
6. By ____________ to the internet you have a _______ connection and have therefore
‘dedicated’ bandwidth between your _________ and your ____________.
7. To furthermore understand bandwidth and ‘traffic' think of __________ and ______.
8. Downloading an ___________ file from a website, you can create _______ between the
website and your __________.
9. A _______is able to ___________ their bandwidth of their internet connection.
10. The two types of bandwidth are:________________and ______________.
WORD BOX
Photograph Internet Provider Network Page of text Millions
Computer Highways Increase Transmitted Networks
Bandwidth MP3 Traffic Bytes per second
Bits per second Cars Computer Size
DSL Digital More Bandwidth
Connecting Host Amount Internet
