The sending of data from one place to another by means of signals over a channel (188)
The electronic exchange of information between two data processing points (computers) [ACH]
Sending and receiving data via cables (e.g., telephone lines or fibre optics) or wireless relay systems. Because ordinary telephone circuits pass signals that fall within the frequency range of voice communication (about 300-3,500 hertz), the high frequencies associated with data transmission suffer a loss of amplitude and transmission speed. Data signals must therefore be translated into a format compatible with the signals used in telephone lines. Digital computers use a modem to transform outgoing digital electronic data; a similar system at the receiving end translates the incoming signal back to the original electronic data. Specialized data-transmission links carry signals at frequencies higher than those used by the public telephone network. See also broadband technology; cable modem; DSL; ISDN; fax; radio; teletype; T1; wireless communications
The electronic exchange of information between two data processing points Data transmission may be over regular phone lines or a dedicated line with numerous line speeds available
The process of sending data from one location to another location within a computer or between computers and/or equipment
uci Message exchange among system users, and also message exchange with other systems Transmitted data may include numbers, words, pictures, or other representations of data [MIL-HDBK-1908B]