Parity
For 7-bit ASCII Only (No Parity = 8-bit ASCII)
Transmit an 8th bit per character
Even parity: sum of data and parity bits is even
- To send 1110000 (odd), send 00001111
- To send 1111000 (even), send 00011110
If error is detected, the character is simply discarded. No way to ask for retransmission