Communication means the transfer of information from source to a receiver. The information applies to facts, ideas, options , experiences, events , wishes orders, emotions, moods, and anything else that can be communicated. A traffic signal a message but all such signs are not intended for receiver. a fence may be built simply to keep children from wandering into the street, On the other hand it may mean "No Trespassing".

Man in the  begining adopted the sources of communication in theses ways, as physical postures, and gestures. In permitive societies physical sigh codes could be quite complicated .
For example the American indian used had signals that more than 600 meanings certain gestures, such as the handshake and the other modes of communication are perhaps more important today.Man in the  begining adopted the sources of communication in theses ways, as physical postures, and gestures. In permitive societies physical sigh codes could be quite complicated .  

Fire , smoke and al other sources are now old enough, now a days as we all know that the communication is made my cell phones, Through mails, electronic e-mails and through t.v , computer,etc permetive societies physical sigh codes could be quite complicated .  

with the passing of time as human being got literate and socialized he picked the communication sources as per their requirement to meet new world.