cables![click to hear](/images/speaker.jpg)
Protective sheaths covering one or several usually insulated wires; they transmit data between network components.
twisted-pair cable ![click to hear](/images/speaker.jpg)
Cable that contains one or several pairs of twin wires twisted around one another; it transmits signals in the form of electric pulses.
fiber optic cable ![click to hear](/images/speaker.jpg)
Cable that holds thin glass filaments or optical fibers that transmit signals in the form of light pulses at high speed.
coaxial cable ![click to hear](/images/speaker.jpg)
Cable that holds two insulated concentric conductors; it transmits signals in the form of electric pulses without loss of quality.