For one computer to carry on a conversation with another computer, both computers must be able to transmit and receive electrical impulses that represent commands or data. The computers and peripherals of a network can be physically interconnected with a transmission medium to enable data exchange and resource sharing.
|Coaxial (coax)||This is similar to the cable that is used to connect your TV set to the cable television service||Thick||
|As above||As above||Thin||
|Twisted-pair||Cable with 4 sets of twisted pair wires. Similar in appearance to telephone wire||Unshielded twisted-pair (UTP)||
|As above||Shielded has a metal film surrounding the wires to reduce external electrical interference||Shielded twisted-pair (STP)||As above|
|Fibre-optic||Glass or polymer fibres carry modulated pulses of light to represent digital data signals||