Answer:
Guided media provide a physical path along which the signals are propagated; these include twisted pair, coaxial cable and optical fiber. Unguided media employ an antenna for transmitting through air, vacuum or water. Traditionally, twisted pair has been the workhorse for communications of all sorts.
Explanation:
douc54.cs.edinboro.edu /~bennett/class/csci475/spring2002/notes/chapter4/index.html
copy and paste that it might help!
