Star Topology : Advantages and Disadvantages

Star Topology:

• Most common use now a day.

• Point-to-Point or Uni-cost Communication.

• Security of data.

• All Computers will be connected to a Central controller, usually called a HUB or Switch.

• Central device (Switch or HUB) has addresses of all computers connected to it.

• If one device wants to send the data to another, it sends the data to the controller, which then relays the data to other connected devices.

Advantages are

1. o       Fast Communication Speed as compared to Bus Topology.
2. o       Easy to install and wire.
3. o       If one computer fails, no effect on network.
4. o       Easy to detect and remove faults.

Disadvantages are

1. o       High installation cost as compared to Bus Topology.
2. o  If central device fails then entire network will goes down.