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)
