IBM 029 Card Punch and ASCII Machines

Eric Smith spacewar at
Mon May 11 22:56:22 CDT 2015

On Sun, May 10, 2015 at 1:06 PM, Johnny Billquist <bqt at> wrote:
> I don't know how common card readers were, but I don't think any DEC
> machines could punch cards.

Almost all DEC machines up through early VAX supported card punch
options. They just weren't very common other than on PDP-10.

PDP-8: CP08
PDP-10: CP10 (multiple variants) and CP20
PDP-11 and VAX: CP11
PDP-15: CP15
(also earlier 18-bit machines, and maybe PDP-5, but I don't have
definitive info on option numbers at hand)

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