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Star Network Topology

Broadly, Network Topology means the Network Shape. An example of Network Topology is Star Topology.


Star Topology is like a twinkling Star. At the centre, a Hub ( Central ) Computer is placed. Hub Computer is the most important Computer of a Star Network. The Hub Computer is located at the centre of a Star Network. Besides the Hub Computer other Computers are there. Others are spread around the Hub in an arrangement.The arrangement of other non- hub Computers may be in  a circular fashion. The other computers appear at an equal distance from the Hub. The Hub Computer and the other arrangement of Computers makes a Star Topology Network.

Information transfer can take place between Hub Computer and other Computers. But, transfer of information from one Non-hub Computer directly to another Non-hub Computer is not possible. Exchange of information between two Non-hub Computers is only possible by passing information through the Hub Computer.

Local-Area Networks ( LANs ) can be designed to have Star Topology. Star Topology Networks can be implemented in office buildings. Transfer of information is greatly helped. Besides, two Local-Area Networks having the Star Topology can be connected. Adoption of Star Topology leads to good control over transfer of information. 

In the process of information transfer the Hub is always present. We can say that Hub is the most busy computer of Star Topology Network.

Hub Computer plays the most important role here. It is given a fast CPU and large size memory. 

Ready with a fast CPU, the Hub can manage information transfer efficiently. Here information transfer has Hub on the one hand, and sideways placed Non-hub  Computers on the other hand.

The large sized memory of the Hub is helpful. Hub can store all the data demanded by other Computers.

Advantages of Star Network Topology:

  1. Simple design

  2. Easy to rectify faults

  3. Helps to share information

  4. Requires little effort to maintain

Disadvantages of Star Network Topology:

  1. Failure of Hub ( Central ) Computer makes it useless

  2. Communication is centralized


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