Information and Communication

While no single definition of communication can encompass the entire range of uses that the word enjoys, the following simple definition will serve as a very useful starting point.

Communication is the transfer of information from a signaller to a signal receiver.

We typically say that in communication, the signaller sends a message through some channel to the receiver, as diagrammed below.

We typically say that the message conveys information from the signaller to the receiver. But this begs a new question: What is information?

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