Definitions for "Stop Bit"
The last bit in asynchronous communication.
A bit that is sent as part of a serial communication stream to signal the end of a byte or packet.
This is the bit, always a 1, which terminates the character group in asynchronous transmissions.
Keywords:  unknown, larger, needed, sending, piece
communications: When the computer has stopped sending a larger piece information it sends this very small piece of information. It is needed where sending a known amount of information takes an unknown amount of time.