I was an operator (summer job and weekends during college), we had a bunch of model 30s, each with at least 2 card readers and 2 printers. most work was BG or F1 running jcl which read in a 1401 program from cards.
we also had one model 30 with only 32k memory, usually used for check sorting. when not, it sat idle, except I was the only one who read the directions to use the switches and could run TWO 1401 emulation jobs on it. <pre>--Carey</pre> > On 04/10/2024 3:03 PM CDT Van Snyder via cctalk <cctalk@classiccmp.org> wrote: > > > On Wed, 2024-04-10 at 03:45 -0500, CAREY SCHUG via cctalk wrote: > > you could also use the console to run 1401 emulation without DOS (i > > think 2 options, one loaded in card deck, then allowed typing in > > config, otherwise just turn dials and store stuff into memory. > > After loading the Compatibility Initialization Deck or CID, a 1401 > program could be run from cards by putting 1402 into the IPA dials, or > from tape by putting 1729 into the IPA dials, and pushing IPL. The IPA > was, IIRC, the address in the microcode.
