e, communications> An extra ef="module.php?name=Lexikon&file=search&eid=1&query=byte">byte (or word) appended to a block of data in order to reveal corruption of the data. Bit n of this byte indicates whether there was an even or odd number of "1" bits in bit position n of the bytes in the block. The parity byte is computed by ef="module.php?name=Lexikon&file=search&eid=1&query=XOR">XORing the data bytes in the block. Longitudinal parity allows single bit errors to be detected. (1996-03-01)
