Where
to start from? |
Ok,
here we go and start to
learn Networking from zero.
Some or most of the readers
would not really require
this basic study information
about networking but keeping
the fact in view that this
site is for everybody, I
have to start from basics.
You always have the choice
to skip the topic and move
to the next one select a
topic of your interest by
yourself. To those who are
networking experts and want
to criticise me not using
too many technical terminologies,
I just want to request that
all I have tried to do here
is that to explain computer
and networking related issues
in as easy words as possible.
Hope you enjoy. |
|
| Introduction
To Computer Networking: |
Just
as the name describes itself,
it is a system consisting of many(more
then one) computers connected
to one another using different
mediums such as cable wireless
etc. The main and popular purpose
of a Computer Network is to transfer
data from one point to another
point or you can say from one
computer to another computer.
This data can be simple text,
pictures or graphics, audio or
video etc. The networks are laid
using different topologies such
as Mesh, Star, Bus, Ring. I don't
think that in this section you
really need to go more in detail
to topologies, and here I will
explain one still popular topology
only that is Star Topology. |
You
can see a small Star Topology
network on the right. Notice
that all devices are connected
directly only to a central
hub. In Star there is no
direct or dedicated point-to-point
link between the devices,
so all the data is sent
and received through the
controller only, which acts
as an exchange. Each device
requires just one link and
one I/O port to connect
to any number of other devices
in Star topology the main
advantages of this topology
are: |
 |
Star
Topology |
|
|
- Each
device needs only one link and
one I/O port to connect to any
number of devices
-
Fault identification and Fault
isolation, as only one link
gets affected if there is a
problem as long as the hub is
working
-
Easy to install and configure
-
More reasonable cost as compared
to topologies like Mesh
|
LAN
(Local Area Network) |
MAN
(Metropolitan Area Network) |
WAN
(Wide Area Network) |
|
|
