3.1.2 Types of Computer Networks
Computer networks are classified based on the geographical length. A network can be as small as the distance between a mobile phone and its Bluetooth headphone. Also it can be as large as the internet itself. It covers the whole geographical world.
Types of Networks
• LAN
• WAN
• MAN
(i) LAN (Local Area Network)
A local area network is a self-contained network. It lengths a small area, such as a single building, floor, or a room. In LAN, all the nodes and segments are connected directly with short range wireless technology or cables. Each computer in a LAN has its own CPU. It executes the programs. It also access the data and devices anywhere on the LAN. Through LAN many users can share expensive devices, such as laser printers, as well as data. The LAN is used by the users to communicate with each other. They communicate through emails or by engaging in chat sessions. …show more content…
These data’s are transferred much faster than the data that can be transmitted over a telephone line; but the distances are limited. There is a limit on the number of computers to attach a single LAN. LANs are composed of inexpensive networking and routing equipment. It has the local servers that help in serving file storage and other locally shared applications. It is used to function mostly on private IP addresses. It has no contain heavy routing. LAN is controlled centrally and works on its own local domain.
LAN uses either Token-ring technology or Ethernet. Here, Ethernet is most commonly engaged LAN technology and it uses Star topology. Also, token-ring is seen rarely. LAN can be wireless, wired, or in both forms at the same