Abstract
Communication is the process where the information (message signal may be speech or text or picture), is transferred from point in space and time (source) to another point, through transmission channel (communication medium), separating the transmitter from the receiver. Communication enters our daily lives in many different ways, telephones, radios, televisions, and computer terminals. Communication also provides the senses for ships on the seas, aircraft in flights, and satellite in space.
Keywords: Model of communication system, Shannon-Hartley law, Classification of signals.
