Network topologies

A network topology is a layout of the cables, computers and other peripheral devices that are connected in a computer network. A fine classification divides network topologies into four different categories. They are star topology, ring topology, bus topology and mesh topology.  In star topology, computers and network devices are connected directly to a central server computer (hub). Any device which is connected to the hub is called as a node. In a ring topology, all the computers and network devices are connected in the form of ring. In a bus topology, computers and network devices are connected to a single cable. This cable or wire is known as bus. A network topology in which computers and network devices are interconnected with one another in the form of a mesh is called mesh topology.