DAY 3 TYPES OF NETWORK TYPES OF NETWORK

DAY 3 TYPES OF NETWORK

TYPES OF NETWORK Based on the size and the coverage area, networks are categorized into the following types: Personal Area Networks (PANs) Local Area Networks (LANs) Metropolitan Area Networks (MANs) Wide Area Networks (WANs)

PERSONAL AREA NETWORKS (PANS) A personal area network (PAN) is a computer network used for communication among computer and different information technological devices close to one person. It is a small network established for communication between different devices, such as laptops, computers, mobiles, and PDAs. A pan may include wired and wireless devices. The reach of a PAN typically extends to 10 meters.

PERSONAL AREA NETWORKS (PANS)

LOCAL AREA NETWORK(LANS) A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as a home, school, office building, or closely positioned group of buildings. Each computer or device on the network is a node. LAN’s can be either wired or wireless. Twisted pair, coax or fiber optic cable can be used in wired LAN’s.

LOCAL AREA NETWORK(LANS)

METROPOLITAN AREA NETWORK (MAN) It is relatively larger than LAN and extends across a city or a metropolitan. It is created by connecting two or more LANs located at different locations in a city. Examples of MAN: Telephone company network that provides a high speed DSL(Digital Subscriber line) to customers and cable TV network.

METROPOLITAN AREA NETWORK (MAN)

WIDE AREA NETWORK(WANS) A wide area network (WAN) is a computer network that covers a large geographic area such as a city, country, or spans even intercontinental distances. A WAN uses a communications channel that combines many types of media such as telephone lines, cables, and air waves. A WAN often makes use of transmission facilities provided by common carriers, such as telephone companies. One of the most prominent examples of the existing wans is the Internet.

WIDE AREA NETWORK(WANS)

Comparison between the three types of computer networks Criteria LAN MAN WAN Cost Low Higher Network size Small Larger Largest Speed Fastest Slower Slowest Transmission media Type Twisted Pair And Fiber Optic cable Fiber Optic, Radio wave and satellites Numbers of computers Smallest Larger Largest

Assignment Q 1 Name the different types of Network. Q 2 Define (only two points) a) PAN b) LAN c) MAN d) WAN