On Mon, 16 Jan 2017 07:00:27 -0600, Tom Marchant wrote: >On Sat, 14 Jan 2017 00:15:38 +0000, Vince Coen wrote: > >>If no where else it was on the printers for channel control. > >Yep. That's what I was thinking of. I didn't say that it was used for I/O. >https://en.wikipedia.org/wiki/Carriage_control_tape > I recall in that era that IBM printers used an idiosyncratic tape, as in the Wikipedia illustration, requiring a proprietary punch (or would a loose-leaf punch work?) CDC printers used a conventional Teletype tape. Usually a collection of tape loops hung on a pegboard near the printer.
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