On Thu, Sep 15, 2011 at 8:37 PM, Alan Ackerman
<alan.acker...@earthlink.net>wrote:

> Small world: I learned FORTRAN when I was in high school, using TCU's
> IBM1620. We used a keypunch and punched cards, though, no terminals or paper
> tape were available.
>

Did you know that the 1620 did arithmetic by table lookup - and it stored
the tables in RAM - so you had to load the tables each time it was turned
on.  One could load octal tables and then it did octal arithmetic!

--henry schaffer

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