Error Checking and Correction
Definition - What does Error Checking and Correction mean?
Data exchanged through channels must be verified at the source and retrieval points. This data exchange may apply to a variety of paradigms, including stored data and a processor or two computers over a LAN/Internet connection. Both stored and transmitted data involve physical interaction, which creates added noise and may lead to a change in value.
Techopedia explains Error Checking and Correction
Perhaps the most efficient error-detection technique is the parity check, where a single extra bit is added at the end of each byte. Its value is decided according to a fixed rule, that is, keeping the number of “1's” even or odd per byte. The data receiver processes each byte and estimates the parity bit. If a comparison shows a difference in data, the receiver asks the transmitter to resend the data after indicating a transmission error.
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