star network                                                                            bus network ring network all computers and other devices on the network connect to a central devices (hub/switch), thus forming a star.  a bus network consists of a single central cable, to which all computers and other devices connect (node) on a ring network, a cable forms a closed loop (ring) with all computers and devices arranged along the ring. 2 types of devices that provide common cental connection point to all the other devices on the network are a hub and a switch. each devices is connected to the single bus cable through T-Connector a terminator is required at each of the bus cable to prevent the signal from bouncing back and forth on the cable bus. how the data transmit: data, instructions and informations transfer from one node to another node passes through hub/switch. if the network used hub, the signal will send to all nodes but only the intended recipient will accept the signal and the rest will ignore. if the network used switch, the signal will send directly to the intend recipient. how data transmit: in a bus network, it transmit data, instructions and information as a series of signal in both directions where all nodes receive the signal but only the intended recipient will accept the signal and the rest will gone. how data transmit: data transmitted on a ring network travels from device to device around the entire ring, in one direction (clockwise or counterclockwise) until it reach its destination by using token. token passing is one method for sending data around a ring. each device takes a turn sending and receiving information through the use of a token.
definition of network topology
computer network terms	network topology types
advantages	disadvantages