OKE, <A HREF="http://www.liacs.nl/~herbertb/projects/oke/index.html"
  >the Open Kernel Environment</A>, is an *(OS) which allows _(user)s other than _(root) to load native and fully optimised code in the _(kernel). It is an example of a *(no-kernel) system.

See also the _(Cyclone) language.