Information and Communication Theory

Abstract

Information theory is concerned with the problem of how to measure changes in information or knowledge content. It is based on the fact that we can represent our experience by the use of symbols like the alphabet, pictures, etc. But since the establishment of classical information and communication theory in the 1940s, nobody has succeeded in stating a general definition of the concept of information. As a result the commonplace definition where information is seen as the opposite to noise, or as non-meaning, is omitted.