Network topology
In local area networks with a star topology, each network host (for example a PC) is connected to a central hub with a point-to-point connection. All traffic on the network passes through the central hub. The hub acts as a signal booster or repeater. The star topology is considered the easiest topology to design and implement. An advantage of the star topology is the simplicity of adding additional nodes. The primary disadvantage of the star topology is that it may need a lot more cables, and if the hub breaks everything will stop working. And if the information is to be passed only to a single computer then it can't be done in this topology i.e. all the computers interact with each other and the information will be shared to all the computers. information cannot be shared to a single computer in this topology.