IBM's mini computerslack thereof 821

there was the 1800 and system-7 in the instrumentation world.

prior to the ibm-pc, the instrumentation division did turn out a 68k-based machine.

in the early-mid-70s, *peachtree* become the s-1 and found wide deployment in instrumentation, control systems, as well as telecom world.

there was an effort from some sectors to try and get "peachtree" to be the core of the mainframe 3705 telecommunication unit (rather than some flavor of a UC ... universal controller microprocessor).

there was the joke about the (os-360) mft people from kingston moving to boca and trying to re-invent mft for the (16bit) s-1 (and called rps) ,,,, supposedly some of them went on to work on os-2.

the rps alternative was edx that had been done by some physicists at sjr (for lab instrumentation).

i don't have any ship numbers for these ... but as i've noted in the past with regard to time-sharing systems

cp67 and vm370 saw much wider deployed numbers that many other time-sharing systems that possible show up widely in the academic literature. the possible conjecture is while cp67 & vm370 had much wider deployment than better known systems from the academic literature ... the cp67 & vm370 deployments tended to be dwarfed by the mainframe batch system deployment numbers. however, the claim is that vm370 on 4341 saw wider deployment than equivalent vax machines (it was just that the ibm press was dominated by the batch system activity).

misc. past s-1, peachtree, edx, etc posts

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