punched card editor software ?

[James Knott]

Peter L. Peres wrote:
> Does such a thing exist ? (open source/linux preferred) I mean a graphical
> editor that simulates editing a p.c.

What's to edit?  When you hit the key, you get holes in the card.  At 
best, editing is simply backspacing the card and obliterating the 
character, in a manner similar to the ASCII "rubout" character.  If you 
make a mistake in a punch card, you generally have to toss it.

There were some punches that would buffer the line and punch it in one 
shot, allowing corrections to be made first and some devices that could 
read some of the data from a card and merge it with new data, either 
from the keyboard or another card.  However, that sort of thing required 
set up for each type of job.  If it was a common job and the hardware 
supported it, you could use control cards to set up the machine.  You 
may want to read a book called (IIRC) IBM's Early Computers, which 
includes descriptions of how some card equipment was used.




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