<P> A Star network is one of the most common computer network topologies . In its simplest form, a star network consists of one central hub which acts as a conduit to transmit messages . In star topology, every host is connected to a central hub . A star network is an implementation of a spoke--hub distribution paradigm in computer networks . </P> <P> The hub and hosts, and the transmission lines between them, form a graph with the topology of a star . Data on a star network passes through the hub before continuing to its destination . The hub manages and controls all functions of the network . It also acts as a repeater for the data flow . </P>

What piece of hardware is usually at the center of a star network