Oberon is not as minimal as this, but it had the same goal: a complete OS, including language, compiler, IDE, etc. that a single student could study and underst

Oberon is not as minimal as this, but it had the same goal: a complete OS, including language, compiler, IDE, etc. that a single student could study and understand in a single university semester. http://www.projectoberon.net/ http://www.projectoberon.net/ It is alive and still being used, worked on and updated. Documentation: https://en.wikibooks.org/wiki/Oberon https://en.wikibooks.org/wiki/Oberon