You're not just going to have that, So, first of all, you had sound. You had a bell, so if anything went wrong — (Laughter) — or the machine needed the attendant to come to it, there was a bell it could ring. (Laughter) And there's actually an instruction on the punch card which says "" Ring the bell. "" So you can imagine this "" Ting! "" You know, just stop for a moment, imagine all those noises, this thing, "" Click, clack click click click, "" steam engine, "" Ding, "" right? (Laughter) You also need a printer, obviously, and everyone needs a printer.