:) yup toggle switches, and you had to read the display (lights), interpret, to make sure the system was ready to read your card program.
My senior project was to re write the attendance program in RPG, to print the class name from the card input (each class's student had a 5081 card) with the student name and class code, I was to list each student that was absent in each class, tally the total from each class and the percentage of students absent, then a total for the school, Initially I kept a internal table class code to class name, that changed quickly when I blew core in the assembly, we had an outstanding 8k of storage to work with :) the other part of the project was to replicate this program on the 405 accounting machine's wiring board, for DR purposes ! ah school ! Carmen Vitullo ----- Original Message ----- From: "zMan" <zedgarhoo...@gmail.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Wednesday, July 24, 2019 4:58:11 PM Subject: Re: Friday! You had switches? We had to hard-wire the cores... On Mon, Jul 22, 2019 at 11:01 AM Carmen Vitullo <cvitu...@hughes.net> wrote: > same here, but on a Univac processor we had in school, all done by > switches. > > > Carmen Vitullo > > ----- Original Message ----- > > From: "Gary Weinhold" <weinh...@dkl.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Monday, July 22, 2019 9:49:38 AM > Subject: Re: Friday! > > I almost remember how to do it on an IBM 1620 and had to do it on an > Amdahl 470 V6 (in two steps). But it was a machine language routine, > but you seem to be referring to perhaps a buit-in function of the > hardware. > > Gary > > BobL wrote: > > > Hi All, > > > > Who remembers how to "ripple core" on a 360/75J? Back in the day, I was > taught that it "wrote un-digit zeros" to all storage locations (main + LCS) > on the box. If course, an IPL was required after this was done. > > > > Not sure how widely it was used. A simple yes or no is OK if you cannot > provide details. 😊 > > > > Thanks! > > BobL > > > Gary Weinhold > Senior Application Architect > DATAKINETICS | Data Performance & Optimization > Phone:+1.613.523.5500 x216 > Email: weinh...@dkl.com > Visit us online at www.DKL.com > E-mail Notification: The information contained in this email and any > attachments is confidential and may be subject to copyright or other > intellectual property protection. If you are not the intended recipient, > you are not authorized to use or disclose this information, and we request > that you notify us by reply mail or telephone and delete the original > message from your mail system. > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- zMan -- "I've got a mainframe and I'm not afraid to use it" ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
