Depending on the coverage area of Network, it is divided in three types.
They are:
a) Local Area Network (LAN)
b) Metropolitan Area Network (MAN)
c) Wide Area Network (WAN)
a) Local Area Network (LAN)
A computer network that is spread in a small local area is known as Local Area Network (LAN). The network of computers within a room, building or campus is Local Area Network. Computers in a LAN are usually connected with cables. So, the data transmission speed is very high in a LAN. Now-a-days, wireless media are used to connect computers on the network. The type of LAN where wireless media are used is called Wireless LAN or WLAN.
b) Metropolitan Area Network (MAN)
A computer network, that is bigger than LAN and smaller than WAN, is Metropolitan Area Network (MAN). The network of computers within a city or in between neighboring cities is MAN. There may be large numbers of LANs in a MAN. The cable television (CATV) of the city is the example of MAN.
c) Wide Area Network (WAN)
The network of computers within a country or continents is known as Wide Area Network (WAN). The WAN links computers of the country with computers of other countries like India, America, Japan, etc. The WAN covers the very large geographical area i.e. the whole world. The WAN can have many MANs and LANs. The Internet is an example of WAN.
INTRANET
An intranet is a private computer network owned by a company or an organization and is accessible only to its employees. It uses internet protocols, network connectivity and telecommunication system to share a part of the organization’s information or operations with its employees. The features of the intranet are:
i. Intranet runs on private networks within a company and among its branch offices.
ii. Intranet is closely related to the Internet.
iii. Intranet serves as a powerful tool for communication within an organization.
iv. Intranet helps the employees to quickly find and view information and applications relevant to their roles and responsibilities within the organization.
They are:
a) Local Area Network (LAN)
b) Metropolitan Area Network (MAN)
c) Wide Area Network (WAN)
a) Local Area Network (LAN)
A computer network that is spread in a small local area is known as Local Area Network (LAN). The network of computers within a room, building or campus is Local Area Network. Computers in a LAN are usually connected with cables. So, the data transmission speed is very high in a LAN. Now-a-days, wireless media are used to connect computers on the network. The type of LAN where wireless media are used is called Wireless LAN or WLAN.
b) Metropolitan Area Network (MAN)
A computer network, that is bigger than LAN and smaller than WAN, is Metropolitan Area Network (MAN). The network of computers within a city or in between neighboring cities is MAN. There may be large numbers of LANs in a MAN. The cable television (CATV) of the city is the example of MAN.
c) Wide Area Network (WAN)
The network of computers within a country or continents is known as Wide Area Network (WAN). The WAN links computers of the country with computers of other countries like India, America, Japan, etc. The WAN covers the very large geographical area i.e. the whole world. The WAN can have many MANs and LANs. The Internet is an example of WAN.
INTRANET
An intranet is a private computer network owned by a company or an organization and is accessible only to its employees. It uses internet protocols, network connectivity and telecommunication system to share a part of the organization’s information or operations with its employees. The features of the intranet are:
i. Intranet runs on private networks within a company and among its branch offices.
ii. Intranet is closely related to the Internet.
iii. Intranet serves as a powerful tool for communication within an organization.
iv. Intranet helps the employees to quickly find and view information and applications relevant to their roles and responsibilities within the organization.
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