Considering what you now know about terms such as Source, Transmitter, Signal, Channel, Noise, Addressee and Code, what categories in your view correspond to the following?
(a) What is the alphabet?
(b) What is a street?
(c) What is a suit of clothes?
(d) What is light?
(e) What is having to repeat the same story over the phone because of a crackly line?