Other Ethernet Networks
Twisted pair cable is used in many Ethernet networks. Comprising of four pairs of thin wires or conductors, these wires or conductors are contained inside the cable's insulation or outer sheath. Each pair is twisted into several additional twists. These twists are designed to prevent interference from other devices and indeed from other adjacent cables.
Fiber optic cabling is specified where high bandwidths may be needed, especially in the data center environment and where an installation demands high capacity, typically a hospital, airports, banks. However, Fiber optic cabling is fast becoming the medium of choice for any installation that sends high volumes of data!
Also, other types of cables such as coaxial cable, multipair cable, and other types of media such as wireless, otherwise known as wifi.