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Analysis of Multi-Task Switching in Protected Mode based on Intel CPU

Wang Yi

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Abstract

Under all modern Operating Systems,the CPU runs in protected mode,To manage the access of system-critical resources,an OS is in need of privilege levels.This paper introduces a way to implement the function simply and efficiently.

About this research paper

What this paper is about

Under all modern Operating Systems,the CPU runs in protected mode,To manage the access of system-critical resources,an OS is in need of privilege levels.This paper introduces a way to implement the function simply and efficiently.

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Available abstract

Under all modern Operating Systems,the CPU runs in protected mode,To manage the access of system-critical resources,an OS is in need of privilege levels.This paper introduces a way to implement the function simply and efficiently.

Key concepts: Computer science, Task (project management), Privilege (computing), Mode (computer interface), Operating system, Function (biology), Central processing unit, Embedded system

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