I never used a 3270 in my early career (1975-78). I joined IBM in 1978 and
we still used punch cards built on an 029 card punch. Customers generally
got the technology before IBM internal.

In a team of 20 we had a handful of Series 1 emulating a 3270 and you had
to book a 30 minute session to input your code. That's when I learned the
job deck with a TYPRUN=COPY statement. One way to build up your program
between sessions.

On Thu, Nov 9, 2023 at 6:29 AM Paul Gilmartin <
0000042bfe9c879d-dmarc-requ...@listserv.ua.edu> wrote:

> On Wed, 8 Nov 2023 13:46:09 -0500, Phil Smith III wrote:
>
> >Stuart Holland wrote, in part:
> >>Also, the cards only had the punches - no text across the top.
> >
> >That was called "interpreting" cards, IIRC. I forget whether there was a
> machine to do this (not that a site with no more punches or readers would
> have had one!), but I bet others here will remember.
> >
> <https://www.ibm.com/ibm/history/reference/faq_0000000011.html>
> 550 Interpreter?  (Many hits fail with 404.)
>                 Q               What was the IBM 550?
>                 A               Introduced in 1930, the IBM 550 Automatic
> Interpreter was the first commercial IBM machine capable of sensing
> numerical data punched in cards and printing such data across the top of
> each card. The information to be printed could be placed in any sequence.
> The machine automatically interpreted at the rate of 75 cards a minute or
> 4,500 cards an hour. The feeding hopper had a capacity of 800 cards, and
> the stacker in which the interpreted cards were deposited had a capacity of
> 1,000 cards.
>
> "placed in any sequence."  But not aligned with the holes, if that
> mattered.
>
> 1930!
>
> --
> gil
>
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-- 
Wayne V. Bickerdike

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