LAN
local area network.
·
LAN
stand for local area network.
·
LAN
is the collection of computers and other devices that are usually connected
together by cables.
·
This
network is established in a building an organization or a small city.
·
In
this network main computer is called server and all other computer are called
clients connected with server.
·
A
LAN offers a mean of polling network resources and information between a number
of users.
Advantages of LAN:
·
Sharing
of resources i.e., disk storage,
printer and server.
·
Sharing
of information held on disk drives that are accessible by all users of network
·
Sharing
of installed network.
·
Ability
to communicate with other users on the network. this is very useful in case
when the computers are distributed around a large building.
·
High
speed access to resources.
Disadvantages of LAN:
·
The
main disadvantage o LAN is that it cover a very limited area.
WAN
wide area network.
·
WAN
stand for wide area network.
·
WAN
has no geographical limitation
·
A
WAN can be between two cities, countries or two continents or in the whole
world.
·
The
great example of WAN is internet which covers the whole world .
·
The
use of WAN has increase over past few years.
Advantage of WAN:
·
WAN
connects the local area networks.
·
WAN
reduced the connecting charges and using of networks.
·
In
WAN for faster transmission of text and graphics or videos compression
techniques are used.
·
Financial
transaction or data interchange form companies to companies.
MAN
Metropolitan area network.
·
MAN
stand for Metropolitan area network.
·
MAN
is network that is spread over entire big city or more than one city.
·
A
MAN is larger than local intranets or extranets but smaller in range than WAN.
·
An
example of MAN may be a network established in Karachi city that connects
different LANs
·
A
MAN enlarges to become a nationwide network for example if the different cities
of Pakistan (whether large or small) are
connected together then heir connection will make a MAN across the entire
country.
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