Computer Science for IGCSE & O level - Data Transmission (Section 4 - No. 14)
What is the difference between even parity and odd parity?
Even parity means the number of 1s in the byte is even; odd parity means the number of 1s in the byte is odd.
Even parity adds an extra bit; odd parity doesn't.
Even parity is used for error correction; odd parity is used for error detection.
Even parity is always preferred; odd parity is less reliable.
توضیح
Even parity requires the total number of 1s (including the parity bit) to be even, whereas odd parity requires it to be odd.