On 11/18/2016 07:59 PM, Jon Elson wrote: > Yes, I think it had to, as it had no adder. Had to be > incomprehensibly slow. I guess it would load the memory to an > internal register a piece at a time.
The last time I dug around a bit for model 20 software, I was surprised to find that there was not only a FORTRAN, but a PL/I and a COBOL written for the thing. By and large, the only applications that I ever saw were RPG. I can't begin to imagine how slow a COBOL would be, much less a PL/I. --Chuck