The postulate of the adherence of information states that information cannot exist without a carrier, it is always bound to a medium. This bond cannot be omitted. Therefore, information cannot be passed on without it being bound to medium. A transfer can therefore take place, for example, by passing on the medium or by establishing a new connection with which a new bond to another medium is created. In many cases, information transfer comprises a sequence of multiple of such processes.
“Transmission” in a narrow sense of the word refers only to the actual transfer process. The term “communication” is more broadly defined and in its broad meaning refers to all processes of information exchange. In this broad sense, it refers to all processes of information exchange independent of those involved, i.e. to humans, other living beings, technical machines and computer programs alike.