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Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), )
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communications Communication, often two-way, of spoken
information, by means of electrical signals carried by wires
or radio waves. The term was used to indicate transmission of
the voice, as distinguished from telegraphy (done in Morsecode and usually called "continuous wave" or CW
transmission), radio teletypewriter (RTTY) transmission (also
called FSK for "Frequency Shift Keying", the modulation
scheme used by such machines), and later, facimile.