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The study of communication process has led to a new discipline, known as "communication theory". The human elements in any communication process are a message source, a message medium and a receiver. This simplest case might be one person talking to another. The person talking is the transmitter or message source, air is the separating message medium, and the listener is the receiver. To communicate, information of some sort must be transferred. "Information" in communication theory is defined as any organized signal. It can be a series of letters, a series of picture scanning elements, etc.
Communication theory is not a discipline.
“Information” in communication theory is a sound.
The study of communication process has led to a new discipline, known as "Mathematics".
If one person is talking to another, the message medium is air.