Star topology is a network topology of the most frequently used. In a star topology, centralized control and all links must pass through the center of the channel data to all nodes or computers in their voting. Central node in the call by the primary station or server and the other part is called the secondary station or client. In the star topology, which disrupted the connection between a node and the hub does not affect the network. If the hub disrupted (damaged) then all the nodes which connect to the hub can not communicate with each other can not. A node is a connection or connection point in the network, while the hub serves to receive signals and pass all of the computer connected to the hub.The benefit of using the star topology:
1. High flexibility.
2. Additions or changes to the computer very easy and does not disturb the other networks, namely by pulling the cable into the hub.
3. Centralized control so easily in network management.
4. Ease of detection and isolation of faulty or damaged, if there is one cable to the node is lost t then it will not affect the overall network. Only a broken cable that can not be used.
5. The number of computer users more than the bus topology
Disadvantages of using a star topology:
1. extravagant cable
2. Need special handling
3. If the Hub Damaged then in the same network hub will be damaged.
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