High Quality Content by WIKIPEDIA articles! Coding theory is an approach to various science disciplines—such as information theory, electrical engineering, data transmission, mathematics, and computer science—which helps design efficient and reliable data transmission methods so that redundancy can be removed and errors corrected.The first, source encoding, attempts to compress the data from a source in order to transmit it more efficiently. This practice is found every day on the Internet where the common "Zip" data compression is used to reduce the network load and make files smaller. The second, channel encoding, adds extra data bits to make the transmission of data more robust to disturbances present on the transmission channel. The ordinary user may not be aware of many applications using channel coding.

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