26 Feb
2009
26 Feb
'09
3:17 p.m.
Brent Hilpert wrote:
Nothing like getting an answer a fraction of a second after asking the question (!)
I also just found the full 8-bit-binary punch pattern in my WATFIV FORTRAN
manual. (There are a maximum of 6 holes punched per column.)
Was there a standard 8-bit binary punch pattern (to get a full 8-bit byte out
of one 12-bit column)?
Paul Koning wrote:
>>>> "John" == John Floren
<slawmaster at gmail.com> writes:
John> I thought 80-column cards were 80 bytes? One byte per column?
John> I've never actually used them, so if somebody could explain to
John> me that would be interesting.
Yes, they are, if you use the full binary code. That exists but it
isn't often seen. I do remember some IBM 360 binary card decks,
though. You could even do 12 bits per column if the card punch
being used is
forgiving.