Data communication

Data communication is the transfer of data over a point-to-point or point-to-multipoint communication channel. Data communication comprises data transmission and data reception and can be classified as analog transmission and digital communications. Analog data communication conveys voice, data, image, signal or video information using a continuous signal, which varies in amplitude, phase, or some other property.

Extends: [Computer networks engineering](https://wikipedia.org.ai/Computer networks engineering), [Data transmission](https://wikipedia.org.ai/Data transmission), [Mass media technology](https://wikipedia.org.ai/Mass media technology), Telecommunications