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
