types of transmission media
Bounded Transmission Media. Bounded media is a physical link that the signal is carried through. It is often a narrow path. This is also called guided media. It is made up of a conductor, which is usually made of copper and is jacketed with material. Bounded media provides high speed and is very secure.
Unbounded Transmission Media. Unbounded transmission of media is achieved by using antennas and other transmitters that allow waves of media to be wirelessly transferred from one station to another. This is most often used in television, radio or other forms of broadcast media.