This now implies that the mapping in one direction can be produced by a finite state automaton, having one state for each of th 12 ( ? ) orientations, taking a triple of bits as input for each transition and producing an octal digit and a new state.
22.
The human interface was a keyboard with ten digit keys and a few auxiliary keys for such things as " + " and " " and " enter ", and a display with three numbers of 5 decimal / octal digits, a two-digit program number, and a two-digit verb and a two-digit noun.
23.
The setuid and setgid bits are normally set with the command chmod by setting the high-order octal digit to 4 for setuid or 2 for setgid . " chmod 6711 file " will set both the setuid and setgid bits ( 4 + 2 = 6 ), making the file read / write / executable for the owner ( 7 ), and executable by the group ( first 1 ) and others ( second 1 ).
