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I wonder what hardware are these running on. Are they just emulating the original architecture? Surely maintaining a mainframe from half a century ago would be
by porknubbins 5y ago
I wonder what hardware are these running on. Are they just emulating the original architecture? Surely maintaining a mainframe from half a century ago would be at least as arcane a skillset as writing Cobol.
- mahogany 5y agoIBM mainframes likely offer a high level of backward compatibility, so these companies can upgrade the hardware and keep the programs more or less untouched. Also, I wouldn't be surprised if IBM does a lot of the maintenance for you, on the hardware side.
- the_only_law 5y ago> IBM mainframes likely offer a high level of backward compatibility Just to add from what I’ve read. A zmachine purchased within the last several years could run in modified S/360 binaries.
- derac 5y agoIn my experience supporting and administering enterprise MFT software that interfaces with these mainframes, it's largely emulated z/os.