Parity Check
Parity check is a method used in digital communication systems to detect errors in transmitted data. It involves adding an extra bit to each character or byte of data that is transmitted. The value of this extra bit is chosen so that the total number of 1s in the character or byte, including the extra bit, is always either even or odd. At the receiving end, the parity bit is checked to ensure that the total number of 1s in the received character or byte is still either even or odd. If the parity check fails, an error is detected and the data is retransmitted. Parity check is a simple and effective method for detecting errors in data transmission, but it is not foolproof and can only detect errors, not correct them.
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