Noun
coding theory (uncountable)
(mathematics) The branch of mathematics dealing with the art of transmitting messages reliably over a noisy channel by adding redundancy to the message.
Coding theory main A picture showing scratches on the readable surface of a CD-R. Source: Internet
Music and data CDs are coded using error correcting codes and thus can still be read even if they have minor scratches using error detection and correction Coding theory is one of the most important and direct applications of information theory. Source: Internet