Classical Domain

It has been only in the past two or three years that the theory of error-correcting codes has advanced sufficiently to provide the basis for practical systems. Computer technology also has continued to advance, decreasing the cost and increasing the speed of equipment used to implement error correction. At the same time, there is a growing need for communication channels of extreme reliability for computers and automatic control systems. As the need grows and as coding theory and computer technology continue to develop, error detection and error correction will play an essential role in the success of complex systems.