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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 (a digital bitstream or a digitized analog signal) 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.