Topology

The physical arrangement of Computers is called Topology OR the physical
Connectivity of different computers via different cables is called topology.
Types of Topology
1: Bus Topology
2: Ring Topology
3 Star Topology
4: Mesh Topology

Bus Topology
In Bus Topology all Computers on the Network are connected to a single cable called Bus. Coaxial cable is used in this topology. The bus topology is easy to install and the cost is usually lower then for other network topologies. But the cable failure shuts down the network, and it can be extremely difficult to locate broken cables on large Networks. Only one Computer can send the data at one time via bus. Data goes to every computer on the way of the destination computer.

Ring Topology
In ring topology we connect all computers in the form of a ring with the help of a single coaxial cable. Last Computer is connected to first computer. Both way communications is possible. Ring topology is easy to install, but in the case of failure of any 1 computer all network get disconnect.

Star Topology
In star topology each computer is connected to a central device with its own dedicated cable. The central device is called Hub and Switch. Every computer can send the data at one time. Troubleshooting is easy .In the case of failure of any cable only one computer get disconnects.

Mesh Topology
In mesh topology every computer is connected to every other computer in the network. A lot of cable is used in this network. Coaxial bale is used for connectivity.