1. Bus Network Topology

In a bus topology all of the computers in a network are attached to a segment of cable that connects them in a sight line. Each connected computer or peripherals is called terminal or node.

Of the network is connected by a terminating resistor which prevents single interference.

          In a bus topologies the nodes are of passive participate i.e. listing on the line and waiting for message address to them. This type of network can transmit to any other node whenever it wants. Transmit is limited to one computer at a time thus at one time the computer is master and all others are waiting message to read. Terminator was used in end of cable.

a.      Advantages

i.                    It is simple reliable and easy to use.

ii.                  Single backbone cable is required to connects all nodes, thus is cheaper.

iii.                Other computers are can easily added and network can be extended.

iv.                 A repeated can also be used in extended cable.

v.                   Repeater allows the message to trend to a longer distance.

b.      Disadvantages

i.                    It is slower communication network because of heavy data jam.

ii.                  At a time any two nodes are connected others have to wait them.

Fig: Bus Topology