ah 4341, Boeing Philly used one to perform a proof of concept for an electronic mock up system for V-22 design, it was a standalone system, 2 tape drives, no network adapters that I recall. @ Sears before that the 4331 ? first self diagnosing processor, a red error code on the systems master console, below the PSW display showed the error code, call IBM, tell them the code and they came it with the parts !
Carmen Vitullo ----- Original Message ----- From: "Dana Mitchell" <mitchd...@gmail.com> To: IBM-MAIN@LISTSERV.UA.EDU Sent: Wednesday, May 13, 2020 12:07:29 PM Subject: Re: An older device query - still using?? On Wed, 13 May 2020 11:35:00 -0400, Tony Thigpen <t...@vse2pdf.com> wrote: >The 4331 had an internal diskette drive (accessed from the top of the >cpu) that emulated a 3540. It was the same drive as used for IML. We >also had one attached to our System-3/15D. > >Tony Thigpen I remember it well, the conversion from 4331 to 4341 was a particularly painful conversion due to all the built-in adapters and such that 4331 possesed that the 4341 required channel attached control units. In order to swap to the new CPU, we had to install 3540, 3274, 3880, 3705 (along with NCP, EP, and SSP) and new tape drives. Dana ---------------------------------------------------------------------- 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
