Error correction codes

Error correction codes are methods used in digital communication to detect and fix mistakes that happen when data is transmitted over imperfect channels, like cables or wireless signals. They work by adding extra, carefully calculated bits to the original data. If some bits get changed or lost during transmission, these additional bits help the receiver identify and correct the errors without needing the data to be sent again. This process ensures information remains accurate and reliable, even in noisy environments, enabling smooth and error-free communication.