
1) Discontinued operating system
Found on
https://www.crosswordclues.com/clue/movitz

Movitz is an implementation of the Common Lisp programming language for x86 computers. It runs with no underlying operating system and is intended as `a development platform for operating system kernels, embedded, and single-purpose applications`. Movitz does not currently implement the entire ANSI Common Lisp standard, but it is stable and quit.....
Found on
http://en.wikipedia.org/wiki/Movitz
No exact match found.