Bus topologies / Internet and Networking

Bus topologies :- 
A bus topology uses one cable as a main trunk to connect all of the systems together . A bus topology is very easy to set up and requires on additional hardware such as a hub.  The cable is also called a trunk, a backbone,  or a segment.

With a bus topology,  when a computer sends out a signal travels the cable length in both directions from the sending computer.  When the signal reaches the end of the cable length bounces back and returns in the direction it came from.  This is known as signal bounce Signal bounce is a problem,  because if another signal is sent on the cable length at the signal time,  two signals will collide and be destroyed and then must be transmitted.  For this reason,  at each end of the cable there is a terminator.  The terminator is designed to absorb the signal when the signal reaches the end,  preventing signal bounce.  If there is no termination. The entire network fails because of signal bounce,  which also means that if there is ever a break in the cable,  you will have u terminated ends and the entire network will go down,  With a bus topology , all system,  are connected to one linear cable.