Parity Check
click bits to edit the byte
Parity Type
Data Bits + Parity Bit
0
Sent correctly — parity checks out.
Key Concepts
Extra Bit
A parity bit is one additional bit added to a group of data bits so the total count of 1s is always even (or always odd).
Detects Single-Bit Errors
If exactly one bit flips in transit, the parity no longer matches — the receiver knows something changed, even without knowing which bit.
Limitation
Parity can't catch every error — if two bits flip at once, the count can accidentally match again and the corruption slips through undetected.