Page 82 - TCS ICT Book 7
P. 82
The City School 2021-2022
LAN - Local Area Network:
LAN is an interconnection of computers and
its related devices within a small geographical
area or a building, home, office, school, where
the distance between the computers is small.
Mostly the LANs are built to share vital resources
such as printers and exchanging files. LAN is
also used in providing other services such as
sharing applications, games, files, accessing
the Internet. A speed of LAN is higher than WAN
i.e. 1000 Mbps. Ownership of this network is private and maintained by a single
organization.
WAN - Wide Area Network:
WAN is a computer network that
covers broad and large areas such as
small towns and cities. The design and
maintenance are more difficult than LAN.
Ownership of the network can be private
or public as well. WANs are very complex
to manage by private administrators and
they usually have public ownership. WAN is
a connection between multiple geographic
locations which is composed of multiple LAN’s. The best example of a WAN is
the Internet which connects many smaller LANs and MANs through ISPs. A speed
of WAN is comparatively low than LAN i.e. 150 Mbps. It ranges up to 10000 Km.
WANs are more congested than LANs. WANs have a lower data transfer rate
compared to LANs.
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