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There is an embedded OS called Xinu which does stand for “Xinu is not Unix”, and also happens to be Unix spelled backwards. https://en.m.wikipedia.org/wiki/Xin

There is an embedded OS called Xinu which does stand for “Xinu is not Unix”, and also happens to be Unix spelled backwards. https://en.m.wikipedia.org/wiki/Xinu https://en.m.wikipedia.org/wiki/Xinu

pram 5y ago
The MacOS kernel is in fact called XNU, which means what you think.
- mehrdada 5y ago
  XNU, the Darwin kernel, is not a recursive acronym like GNU. Officially stands for X is Not Unix.