Data transmission refers to transmission of information from a data source. Digital transmission refers to a particular kind of transmission facility implementation. The process of reducing the volume of transmitted data while conveying the original information content. The communications path between a pair of data communications de vices. The data link includes all devices and transmission media in the path.
Data sets can be either transmitters or receivers, or both.
In common usage, the terms data set and modem are often used interchangeably, although strictly speaking, a data set has control functions in addition to modulation and demodulation. A device which accepts signals from a data transmission system. A device capable of originating data signals for transmission. The application of decibel terminology to absolute signal strength relative to one milliwatt. The application of decibel terminology to the measurement of noise.