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.
Nearby terms: vertical encoding « vertical loop combination « vertical microcode « Vertical Redundancy Check » vertical refresh rate » vertical scan rate » Very Efficient Speculative Parallel Architecture