Star Network

 A star network is a type of network topology where all devices are connected to a central hub. The hub acts as a central point of communication and controls the flow of data between devices. The advantage of a star network is that if one device fails, it does not affect the operation of the other devices on the network. Additionally, it is easy to add or remove devices from a star network, as they only need to be connected to the central hub.

The main disadvantage of a star network is that if the central hub fails, all devices on the network will be unable to communicate. This makes a star network less resilient than other network topologies, such as a mesh network. Another disadvantage is that the central hub can become a bottleneck for data traffic, which can slow down the overall performance of the network.

Star networks are commonly used in home and small office networks, as well as in industrial control systems and building automation systems. They are also widely used in Local Area Networks (LANs) in large organizations, such as schools, universities, and corporations. In these types of networks, the central hub is often a router or a switch.

Star network topology is simple, easy to install and manage, and can be implemented in different types of network environments. It is also best suited for small to medium-sized networks and is relatively inexpensive to implement and maintain. Star network topology is also used in other areas such as satellite communications, telephone systems, and cable TV networks