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The ________, also called longitudinal parity check, parallel parity check, and two-dimensional parity check, was developed as a fairly straightforward extension of the simple parity check. the intent was to improve on the performance of the latter in the face of even numbers of bit errors.

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The horizontal parity check

The horizontal parity check or the longitudinal parity check/Longitudinal redundancy check is the count of odd or even parity for all bits in a message. This process acts a precaution against transmission error. Additionally, this parity check is performed on a serial sequence of binary digits recorded on a single track of data medium or arrive in serial sequence on a single wire.