[GreenKeys] Punchcards. Was: off topic? sort of..

[Jim Haynes]

On Fri, 11 Sep 2015, Dave Horsfall wrote:

> At one time, I had a Burroughs card (lost in various house moves).  It was
> 90 columns, sort of squarish, with round holes, as I dimly recall.
>
And then there was the IBM 96-column card, which used 6-bit BCD code and
thus was incompatible with IBMs EBCDIC code used on their larger
computers.  But allowed more characters than the 80-column card.

Datamation commented on its introduction, "A new breakthrough in social
equality: junk mail for the Polish"