3 ms·
Enter tap code, most often used by prisoners to communicate between cells. Row and column in a 5x5 table of chars, encoded by series of taps.
by praptak 4y ago
Enter tap code, most often used by prisoners to communicate between cells. Row and column in a 5x5 table of chars, encoded by series of taps.
- ddingus 4y agoI did not know about this code. Just looked it up. Clever. Does anyone know why C/K are overloaded rather than something like Q/Z?