Which system is typically used in error detection and correction?

The system typically used in error detection and correction is the Gray code. Gray code is a binary numeral system where two successive values differ in only one bit. This property minimizes the possibility of errors during the transitions between values, which is particularly beneficial in digital systems where signal integrity is crucial.

In applications such as rotary encoders and digital attributions, Gray code helps to reduce the chances of erroneous readings when the transition between states occurs. For example, when reading position values where changing components might create signal fluctuations, using Gray code can ensure that only one bit changes at a time, thus allowing easier detection of errors.

Binary code, though fundamental in computing, does not have the same error-detection capabilities as Gray code due to its multiple bits changing simultaneously during transitions. Decimal code and octal code are also numeral representations that serve specific purposes in computing and digital systems, but do not provide the same advantages in error correction that Gray code does. Consequently, Gray code is recognized as the standard for error detection and correction in several digital systems.