This type of network connects all computers to each other through a central device hub / switch. As a result, information can be exchanged at a specific computer address through a central device. If a computer breaks down in a corner of the network, it can be easily removed and reconnected. By increasing the number of hubs, data can be sent to specific computers by connecting more computers to the network. The advantage is that the signal is transmitted through a centrally connected device , so it is relatively fast. Each node transmits signals via a central device hub or switch , so there is less risk of signal collision. Node can be added to any new corner of the network at any time. If the node is disconnected from the network, or if the node is inactive in any corner of the network, the network remains active. Twisted pair cables are commonly used in this topology ; However, at the same time different types of cables such as co-axial or fiber optic cable can be used in this network.