storage, communications (VRC) An error checking method performed on one 8-bit
ASCII character, where the 8th bit is used as the
parity bit.
The resulting parity bit is constructed by
XORing the
word. The result is a "1" if there is an odd number of 1s, and a "0" if there is an even number of 1s in the word. This method is unreliable because if an odd number of
bits are distorted, the check will not detect the error. The
Longitudinal Redundancy Check is an improvement.
(2001-04-28)