> >> I could, but the point is to run 1972 Unix on machine that was around > >> in 1972, even if I have emulate things like the RF disks. > > Except that the MEM11 wasn't around in 1972. > I think the point here, is that much of the hardware that is necessary > to run Unix V1 on an > 11/20 is unobtainium. Therefor, if one wants to run Unix V1 on 11/20 > hardware, there is
I don't think you are running Unix V1 on 11/20 hardware here. An 11/20 CPU, sure, but a computer system is not just the CPU. > going to be, by necessity, some compromises made. Witness the previous Remaking the missing hardware following the original designs and using technology close to the original is one thing. A functional emulator is something quite different. The 11/20 in 1972 did not (AFAIK) use any programmable logic chips, for example. > discussion on > the IBM 1620 where the core memory has been replaced with a modern > equivalent in order > to allow it to work. I view this in a similar vein. So do I. -tony