> Dots & dashes. Want me to research telegraphy? Sure, but OED has _that_ "dot" from 1835. Perhaps I should also make clear that _dot_ in the sense 'small round mark used in punctuation, as the period (full stop) or mark over a lowercase "i"' goes back to 1735; it's the use this "dot" specifically in computing contexts I was talking about before. Jesse Sheidlower