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>> Suppose an 80 column card with 10 bits/column. That is 800 bits per
>> card.
>
> No. If you punched all the holes out of the card (a so-called 'lace
> card'), it wouldn't go thru the reader. It was 7 or 8 bits per column.
> Even binary punched on the card was spread out so it wouldn't make too
> many holes.
>
>> Maybe 20 cards per second through a reader ? Could be higher since
>> those things were really impressive bits of engineering.
>
> Some of them were very fast. Most were closer to 5 or 10, unless you had
> a really high-end giant machine.
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