Monday, 28 April 2014

What is networking?

NETWORKING
when we connecting two or more devices with each other is known as networking, whether it is through cables to connect computers to each other. Sharing of resources i.e. printer, CD-ROM etc is possible in it.

Types of Networking:-

LAN(Local area Network) A Local area Network is group of computers and network communication devices within a limited graphic area, such as an office building.For example- a library will have a wired or wireless LAN for users  to interconnect local devices as printers, and servers. Switches, hubs and bridges are the devices  those are used to connect computers with each other.
Routers are used to connect LAN to WAN or MAN.

characteristics:
·        high data transfer rate
·        less expensive technology
·        limited graphic area
·        security
·        reliability


WAN(Wide area Network) A WAN is a data communication network that covers a large geographic area i.e. one city to another city and one country to another country. Routes are used to connect them.
characteristics:
·         multiple interconnected LANs
·         more expensive technology
·         difficult to implement than LAN
·         unlimited graphic area

MAN(Metropolitan Area Network)- A Metropolitan Area Network is a network that connects two or more LAN or CAN(Campus Area Network) together but within a town, city or metropolitan area. Multiple routers, switches and hubs are connected to create a MAN.A MAN can create within 50 km of range.

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