What is Privileged Instruction in Operating System? PDF Book

Learn Privileged Instruction definition in operating system with explanation to study “What is Privileged Instruction”. Study privileged instruction explanation with operating system terms to review operating system course for online degree programs.

Privileged Instruction Definition

  • An instruction that can be executed only in a specific mode, usually by a supervisory program.

    Operating Systems by William Stallings



Privileged Instruction Explanation

A privileged instruction is an instruction that can be executed only by the operating system in a specific mode. The operating system contains special routines that execute these privileged instructions. The operating system hides the privileged instructions and serves the non-privileged ones to the hardware.

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