Communication occurs when one part of the system becomes a transmitter and creates or produces a relationship, called the signal, that travels through space and time to make contact with a second part of the system, the receiver.
These terms are taken from the model of communication that was first introduced by Claude Shannon and Warren Weaver in the late 1940s.
According to Shannon and Weavers model, a message begins at an information source, which is relayed through a transmitter, and then sent via a signal towards the receiver. But, before it reaches the receiver, the message must go through noise, or sources of interference. Finally the receiver must convey the message to us .
Shannon-Weaver model describe all kind of Human and electronic communication , For example :
- In human speech the medium is the air. Signals are waves formed in the air by the vocal cords of the transmitter and noticed by the ear of the receiver.
- In dolphin communication the medium is water. The signals waves formed in the water by one dolphin and noticed by another.
- In computer communication the medium is an electric current. Signals are patterns in a flow of electrons that are produced within the transmitting computer and detected by the receiving computer.
however, most signals are subject to varying amounts of noise .
Clearly, their model was primarily intended to illustrate the concepts of signal and noise in the transmission channel of communication technologies, it was subsequently adopted as a general theory of human communication.
http://everything2.com/title/Shannon-Weaver+model+of+communication
http://www.rdillman.com/HFCL/TUTOR/ComProcess/ComProc2.html#SWMOD
http://wiki.answers.com/Q/Provide_a_detailed_description_the_shannon_weaver_sender-message-receiver_model_of_communication
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