supervisor mode

(Or "supervisor state") 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.

Opposite: user mode.

Last updated: 1995-02-15

Supervisory Control and Data Acquisition

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(SCADA) Systems are used in industry to monitor and control plant status and provide logging facilities. SCADA systems are highly configurable, and usually interface to the plant via PLCs.

Last updated: 1997-02-11

Nearby terms:

Super Video Graphics Array ♦ supervisor mode ♦ Supervisory Control and Data Acquisition

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