The analog voice telephone network provided by common carriers. Protocol A code or set of rules by which communication is initiated, maintained, and terminated. A software program that runs only on, or is useful only on a network. R Real time A transmission or transaction that occurs immediately or in an extremely short period of time. Repeater A device that connects two network segments to make them work as one.
Repeaters can extend the length of a network beyond the physical limitations of a single cable.
Ring A network topology that connects network devices in a continuous loop. Router A device that connects networks and can determine the best path for data when there are multiple paths. Small Computer System Interface port. Server A network node that provides services, such as printing or storage, to other nodes. Shielding A metal foil or mesh surrounding a conductor to reduce electromagnetic interference.