What is Computer Network? | Types of Computer Network | Practonet

What is Computer Network?

A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.


Types of Network

1.LAN (Local Area network): A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a LAN encompasses computers and peripherals connected to a server within a distinct geographic area such as an office or a commercial establishment.

2.WAN (Wide Area network): A Wide Area Network (WAN) is a communications network that spans a large geographic area such as across cities, states, or countries. They can be private to connect parts of a business or they can be more public to connect smaller networks together.

3.CAN (Campus Area network): A Campus Area Network (CAN) is a computer network made up of an interconnection of local area networks (LANs) within a limited geographical area. The networking devices like Router & Switches and transmission media i.e optical fiber, copper etc. are almost entirely owned by the campus owner.

4.MAN (Metropolitan Area network): A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN)

5.PAN (Personal Area network):A personal area network - PAN is a personal devices network equipped at a limited area. PAN ordinary has such mobile devices: cell phone, tablet, laptop. That type of network could also be wirelessly connected to Internet.

6.SAN (Storage Area network):A storage area network (SAN) is a network which provides access to consolidated, block level data storage. SANs are primarily used to enhance storage devices, such as disk arrays, tape libraries, and optical jukeboxes, accessible to servers so that the devices appear to the operating system as locally attached devices.