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TCP/IP See Transmission Control Protocol/Internet Protocol.

Telemedicine The delivery of healthcare and the sharing of knowledge over a distance using telecommunications network. This is much more comprehensive than teleradiology in that it allows a broad range of medical information, including radiological, to be shared. This allows remote sites access to major centres of excellence. See Teleradiology.

Teleradiology The ability to acquire a diagnostic image at one location and review it at a remote location that is not part of a LAN. This allows an information system to be spread over a large distributed area, and is most effective in allowing small hospitals access to centres of excellence. See Local Area Network (LAN).

Terminal A display and input device, usually comprising a display monitor and keyboard only, which is attached to a remote computer. It has no local computing power of its own.

Terminal emulator A program that can run on a personal computer or workstation and which can imitate the functionality of a terminal.

Traffic A term used to describe the flow of data across a network.

Transfer rate See Bandwidth.

Transmission Control Protocol/Internet Protocol (TCP/IP) TCP is one of the main protocols in TCP/IP networks. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent. See File Transfer Protocol (FTP).