Post #2456895

... The telephone dial: this is used for the occasional insertion of small amounts of numerical data. If any decimal digit is dialed (1 < n < 10— note that the dial position labelled 0 is equivalent to ten, and not to zero) the number n * 2e-15 will be added into the accumulator as the dial returns to rest. As soon as the rest position is reached the machine will be reset, just as if the Reset button were pressed. The dial is frequently used in conjunction with the control combination Z K—see Appendix 4; and subroutine M20 in Part 2 and Part 3.