On Wed, 31 Jul 2002, Fred Cisin (XenoSoft) wrote:
> The physical dimensions of the punched cards were chosen to match dollar
> bills, so that the processing hardware could make use of existing
> subassemblies. I don't know why that particular hole to hole spacing was
> chosen, but that combined with the size of the cards resulted in 80
> column.
Are you sure? A punch card is a bit larger than a dollar bill.
Sellam Ismail Vintage Computer Festival
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Received on Wed Jul 31 2002 - 13:20:01 BST