On Tue, 2024-04-09 at 22:21 -0700, Chuck Guzis via cctalk wrote: > On 4/9/24 22:03, ben via cctalk wrote: > > On 2024-04-09 8:53 p.m., Murray McCullough via cctalk wrote: > > > I had not realized the IBM 360 was 60 yrs. old this month. I > > > worked on > > > such > > > a computer in the late 60s in Toronto. What one could do with 8 > > > Kbytes of > > > ram was remarkable! > > > > > > Happy computing > > > > > > Murray 🙂 > > Real time sharing, not a 16K PDP 8? > > What model of a 360? 8K sounds a lot like a Model 20, which the > purists > may not consider to be a "real" member of the family.
I don't remember whether it was one of the docents at Haus zur Geschichte der IBM Datenverarbeitung at Sindelfingen, or at the Computer History Museum at Mountain View, who told me that IBM was developing a machine to be designated 1480, as part of the 1401-1440- 1460-1410 series, with newer technology, roughly contemporaneously with the 360. When IBM decided to put all its eggs in the 360 basket, The 1480 team somehow survived and produced either the 360/20 or 360/25. An 8k machine would be a bit weird in this series, since 1410 was already 100k. Does anybody know more details about this? Samir Husson wrote a book about the 360/30 that described the microcode. Has anybody built a 360/30 from FPGA? Does anybody have the 360 and 1401 microcode for it? How about the Compatibility Initialization Deck to run the 1401 microcode emulation? > > Â --Chuck > >
