The speed at which you are able to connect
to the Internet is usually indicated as the maximum speed at which your:
·
dial-up modem, ADSL modem or other transmission
device
·
connection to some telecommunications
infrastructure i.e. public switched telephone network, broadband link, wireless
service or leased circuit
can send information to, or receive
information from the Internet.
The theoretically possible connection speed
is usually expressed in terms of kilobytes per second (kbps) – thousands of
bytes per second. For example, a typical dial-up modem will be rated at
56kbps, whereas a broadband connection will be rated at 256 or maybe 512kbps
(sometimes even faster).
However, the rate at which you can send or
more usually, receive information from the Internet is governed by many more
factors.
For example, the speed at which your
computer can receive, process and display information on your display can have
a significant bearing on the perceived connection speed. This is
usually governed by the cycle speed of your processor, amount of memory, type
of graphics card installed etc.
Another element in this complex calculation
of speed is the transmission capability of your telecommunications – whether it
is a dial-up telephone line, broadband, fibre optic, wireless etc.
Next, there is the Internet itself. Since
the Internet is a global network, crossing every time-zone, there are periods
when sections of the Internet are busiest and periods when those sections are
quiet. The time of day that you are accessing the Internet and the location of
the web-site that you are trying to reach are important factors in the time
taken to respond to your request to display a particular web page.
Finally, the web site you are accessing has
a part to play in this complex scenario. If it is a very busy and popular site
(like Microsoft for example), then the number of users it can simultaneously
serve is based on the power of the computer(s) that the organisation uses to
host its web site.
You will probably be interested to know how
well your own link to the Internet is performing. We have recently discovered
an interesting web site (there are a number available in many different countries),
that enables you to measure the actual connection speed of your link. Visit
the following site:
http://www.numion.com/YourSpeed/Checkup.php?L=uk
Initially this site will measure how long it
takes to display web site graphics from a number of UK based web sites. It
will then calculate the average speed across them all and produce an effective
transmission rate expressed in kbps (and also in bits per second – bps, where
one byte is equal to 8 bits).
You can then change the location of the web
sites across which these calculations are made and see the difference in
effective connection speeds.
Give it a try - it can be very interesting!