Bus network

This structure is very popular for local area networks. In this structure or topology, a single network cable runs in the building or campus and all nodes are linked along
with this communication line with two endpoints called the bus or backbone. Two ends of the cable are terminated with terminators.
Advantages:
• Reliable in very small networks as well as easy to use and understand.
• Requires the least amount of cable to connect the computers together and therefore is less expensive than other cabling arrangements.
• Is easy to extend. Two cables can be easily joined with a connector, making a longer cable for more computers to join the network.
• A repeater can also be used to extend a bus configuration.
Disadvantages:
• Heavy network traffic can slow a bus considerably. Because any computer can transmit at any time. But networks do not coordinate when information is sent. Computers interrupting each other can use a lot of bandwidth.