On Mon, 16 Jan 2017 09:27:31 -0800, Charles Mills wrote: >It was exactly as shown in the Wikipedia photo. It was a very durable, tough, >high-fiber paper, not at all the same as TTY punch tape -- other than the >superficial similarity. After all, it made a trip around the sensors every >page that the 14xx printed, boxes and boxes of greenbar every day. (Or every >other page, perhaps. I seem to recall that there was a minimum length to the >tape and it was not uncommon to make one tape loop account for two printed >pages.) There was a special punch >http://archive.computerhistory.org/resources/physical-object/ibm/102668343.lg.jpg, > but I seem to recall that in a pinch one could use a loose-leaf or similar >punch. > I recall visiting a site that had separate channel(s) for recto (and verso?) sheets in fanfolded paper.
It was Bad Practice not to have at least one hole punched in every channel. >-----Original Message----- >> >>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. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
