Types of Network Connection

In this blog, we will discuss types of Network Connection.

Computer network can be wired or wireless. Computer network enables the user to share data and network resources. Network also allows remote users to communicate with each other.

Networks can be categorized as per the geographical area to be covered by the network. Computer network includes Local Area Network (LAN), Campus Area Network (CAN), Metropolitan Area Network (MAN) and Wide Area Network (WAN).

Local Area Network (LAN)

LAN is a computer network that spans over a small area. It connects computers and workstations to share data and resources such as printer or faxes. LAN is restricted to a small area such as home, office or college.

In image of Local Area Network, all the workstations, server and printer are interconnected with the help of network device. Printer can be used by other workstations.

The Institute of Electrical and Electronic Engineers (IEEE) in the United States of America produced a series of standards for LANs called the IEEE 802 standards.

Advantages and Disadvantages of LAN :

LAN has advantages over other networks as it covers comparatively small geographical area. sometimes, the use of LAN is restricted due to its smaller coverage area and centralized management.

Advantages of LAN are:

  • Allows the user to share devices like printers or faxes in a network.
  • Improves productivity leading to faster work. Many users can share data on network elements at the same time which results in faster work.
  • Provides easy maintenance as standard hardware is used for the computers in the network.
  • ┬áProvides communication in a smaller network with Limited network elements.
  • New user or equipment can be installed and configured easily.

Disadvantages of LAN are:

  • Limited number of computers can be connected in a LAN.
  • LAN cannot cover large area.
  • Network performance degrades as the number of users increases.
  • LAN is more prone to virus and hacking than standalone computers.

Campus Area Network (CAN)

Campus Area Network is a computer network. It is made up of two or more LANs within a limited area. It can cover many buildings in an area. The main feature of CAN is that all of the computers which are connected together have some relationship to each other.

For example, different building in a campus can be connected using CAN. It will help to interconnect academic departments, library and computer laboratories. CAN is large than LAN but smaller than WAN. Wires, wireless or some other technology can be used to connect these computers.

Campus Area Network

Metropolitan Area Network (MAN)

MAN is the interconnection of networks in a city. Generally, MAN is not owned by a single organization. It acts as a high-speed network to allow sharing resources within a city.

MAN can also be performed by connecting remote LANs through telephone lines or radio links. MAN supports data and voice transmission. The best example for MAN is the television cable network in cities.

Metropolitan Area Network

Wide Area Network (WAN)

WAN cover a wide geographical area which includes multiple computers or LANs. It connects computers through public networks, like telephone system, microwave, satellite link or leased line.

Most of the WANs use leased line for internet access as they provide faster data transfer. Leased line is a dedicated telephone connection between service provider and consumer.

The main advantage of using leased line is that there is no interference by other users outside the network.

WAN helps an organization to establish network between all its departments and offices located in the same or different cities. It also enables communication between the organization and the rest of the world.

Wide Area Network

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