Keqian Zhang
Data transmission and knowledge reception (or, additional
generally, digital communication or digital communications) is
that the transfer and reception of knowledge (a digital bit
stream or a digitized analog signal over a point-to-point or pointto-
multipoint line. samples of such channels are copper wires,
optical fibers, wireless communication channels, storage media
and pc buses. the information ar depicted as AN magnetic
attraction signal, like AN electrical voltage, radio wave,
microwave, or infrared signal.
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