And OS/400 files are libraries that you need to open, as another example of stra... | Hacker News

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		pjmlp on Nov 25, 2013 \| parent \| context \| favorite \| on: Half an operating system: The triumph and tragedy ... And OS/400 files are libraries that you need to open, as another example of strangeness. Or the OS/360 which uses virtualization for all OSs, like Hyper V does on Windows. The first OS to boot from the hypervisor has master rights, but all OSs are virtualized.

fulafel on Nov 26, 2013 [–]

> Or the OS/360 which uses virtualization for all OSs, like Hyper V does on Windows

No, the hypervisor was called VM. According to WP it most frequently ran CMS guests, which was a light weight single-app OS. But could also run OS/360 guests (which predated VM).

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