Vertical Redundancy Check

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)