Parity Check and Parity Bits (Error Detection)

A parity bit is a computer bit (1 or 0) within a byte of data that is used to enforce the parity checking rule agreed by two computers (even or odd).

The parity bit is used to ensure there are an even or odd number of 1s or 0s within the byte prior to transmission.

When received, any data that does not meet the parity check rule is dismissed and a request is made for it to be resent.

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