INFORMATION THEORY it is devoted to questions of assessment of number of the transferred and obtained information, to ways of its coding and transfer on communication channels. In some cases in And. t. include all theoretical developments in the field of collecting, transfers, processings, storages and classifications of information (recognition of images), and also perceptions by her person. And. t. enters a component in cybernetics (see), however has also independent value for the areas which are not connected with management, napr in psychology, art, training, communication. Finds application in medical science and practice.
In the 70th 20 century broad development was gained by the automated information systems, information retrieval systems, systems of data processing, etc. Theoretical questions of creation of such systems develop in the information theory of search languages, structural linguistics, the theory of coding and the theory of data processing.
In more detail — see St. Theory of information .