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Actually, on a Teletype, VT went down, not up. (Vertical tab stops were settable only in hardware on most models.) And FF, which went to the top of the next page, is obviously unrelated to going right. So the correspondence was really just suggested by BS and LF; it was apparently some terminal manufacturer's idea to put up and right on the next two keys.



As far as I know, this was Lear Siegler's invention; I don't know of any other terminals from the era that use ^K and ^L for "move up" and "move right". (Someone did mention that ^K and ^L did do that on the ADM-3A, right?)

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