Bus Topology

What is Bus Topology?

This is a computer network that permits the connection of terminals, peripheral devices and microcomputers along an open ended central cable which is called bus. The term bus is used because people on a bus can get off at any stop along the route. This cable is used as a shared medium. Coaxial cable and BNC (British Naval Connector) is used in this topology.
A device wanting to communicate with another device on the network will broadcast message on the network and all devices can see the message but only that device can receive message whose address is with the message, Here are some advantages and disadvantages of this kind of topology.

Advantages:

• It is easy to understand
• Bus topology is simple and it is easy to connect additional terminals to this kind of network.
• This is best topology for connecting the devices, which are close to one another.

Disadvantages:

• If there is any error in the network, it cannot easily be detected.
• Chances of data collision are very high due to shared medium of communication.