1" paper tape buy ?
cclist at sydex.com
Wed Mar 4 12:49:02 CST 2009
On 3 Mar 2009 at 19:03, CSquared wrote:
> Interesting. I don't know how I remembered the 90 columns as I never
> worked with a Univac computer - only IBM's and various minis which mostly
> didn't even have punched card readers at all. I'm not real sure I've
> ever even seen one of the Univac punched cards. Your description
> of the hole grouping sounds like maybe they encoded characters as
> 6-bit codes vs. the "12-1 is an A", "12-2 is a B" scheme used by IBM.
> I'm not real sure that's even correct either - it's been a right good while.
I remember the 90 column Univac format, but also remember that Univac
at a very early date also offered 80 column compatibility. Sometimes
that meant selling a completely different computer system, not just
peripherals (e.g. the SS 80 vs. the SS 90 systems).
I haven't been following this thread very closely, but I trust
someone has mentioned the 96 column System/3 mini-card:
Holds more characters, but less data than a standard 80 column card.
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