Advertisements

Showing posts with label WAN) Networks. Show all posts
Showing posts with label WAN) Networks. Show all posts

Saturday, November 3, 2018

Types of Computer Networks |

Computer network is broadly classified into three types:

Local Area Network (LAN)
        LAN is a small and single site network. A LAN connects network devices over a relatively short distance. It is a system in which computers are interconnected and the geographical area such as home, office building, school may be within a building or around 1 Km.
       All the terminals are connected to a main computer called server. On most LAN's cables are used to connect the computers. LAN's are typically owned, controlled and managed by a single person or organisation.
       They also usr certain specific connectivity technologies, primarily Ethernet and Token Ring. Data transfer rate in LAN is of the (Mbps). LAN provides a sharing of peripheral in an efficient or effective way.
Local Area Network (LAN)


Metropolitan Area Network (MAN)
       It is a data network designed for a town or city. It connects an area larger than a LAN, but smaller than a WAN, such as a city, with dedicated or high performance hardware. Its main purpose is to share hardware and software resources by the various users. Cable TV network is an example of metropolitan area network. The computers in a MAN are connected using coaxial cables or fiber optic cables.

Wide Area Network (WAN)
       A Wan is a geographically dispersed collection of LAN's. The Internet can be considered a WAN as well. A WAN like Internet, can expand most of the World. A network device called a router connects LAN's to a WAN.
        These kinds of networks use telephone lines, satellite links and other long range communication technologies to connect (as communication media). In IP Networking, the router maintain both a LAN address and a WAN address.
       Like the Internet, most WAN's are not owned by any one organisation, but rather exist under collective or distributed ownership and management. WAN's use technology like ATM, Frame Relay and X .25 for connectivity.
Wide Area Network (WAN)