An execution mode on some processors which enables execution of all instructions, including privileged instructions. It may also give access to different a address space, to memory management hardware and to other peripherals. This is the mode in which the operating system usually runs.

from FOLDOC

Su`per*vis"or (?), n.

1.

One who supervises; an overseer; an inspector; a superintendent; as, a supervisor of schools.

2.

A spectator; a looker-on.

[Obs.]

Shak.

 

© Webster 1913.