[Info-vax] IT shops call on HP and Oracle to kiss and make up

Dennis Boone drb at ihatespam.msu.edu
Sun Oct 9 18:46:25 EDT 2011


 > There was the IBM XT/370 and AT/370, hardware (two board set that takes
 > two slots in an XT or AT) and special version of VM called VM/PC.
 > (Software runs both on the 370 and 8088/80286 and communicates
 > through the ISA bus.)   Disks are emulated with MS-DOS files.

 > Then later, the P/370 and P/390, again hardware/software sets,
 > though they don't require special OS versions, at least for the
 > OS that they were designed to run.  Again, disks emulated as files,
 > though on an OS/2 system.  

 > And then there is FLEX, as I understand it software emulation of
 > ESA/390, and special license terms to run it.  

Not to mention PR/SM and LPAR support on the 370 et seq family
machines, VM/370 and its evolution, and the fact that even in the
actual 370 hardware era, some of the machines were built out of
microprocessors running 370 emulation software as "firmware".

Oh, and the 360 machines had 709x emulation support in hardware
(or at least firmware) as best I understand.

De



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