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graphic communication is the process of conveying a message through the use of visual art e.g pictures, drawings e.t.c. Surendra Pathi. + 1 other found this useful.
Data transmission also data communication or digital communications is the transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communication channels, storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal. Analog or analogue transmission is a transmission method of conveying voice, data, im