Shannon/Weaver Model

1.1 Shannon/Weaver Communications Model

In 1948, Claude Shannon developed a model for communications over the public telephone system proposing that certain key elements were essential. In 1949, Warren Weaver argued the case that Shannon’s model could apply to any data communication system and not just the telephone system. As such, Shannon’s model is not perfect but it is a good place to start when examining the components of communication systems.

The Shannon/Weaver communication model defines data transmission systems as consisting of six key components:

  • A sender or source that transmits the message
  • An encoder to code the message
  • The actual message to be transmitted between the two parties.
  • A channel or medium to carries the message
  • A decoder to decode the message
  • A receiver or destination who gets the message

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Next: Data Communications: Example