Every system of communication—not just the ones existing in 1948, not just the ones made by human hands, but every system conceivable—could be reduced to a radically simple essence. • The information source produces a message. • The transmitter encodes the message into a form capable of being sent as a signal. • The channel is the medium through which the signal passes. • The noise source represents the distortions and corruptions that afflict the signal on its way to the receiver. • The receiver decodes the message, reversing the action of the transmitter. • The destination is the recipient
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