define three types of kernal-mode to user mode transfersSolution.pdf
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The document outlines three types of kernel-mode to user-mode transfers: multitasking, which requires process switching for executing multiple jobs; interrupt handling, where hardware automatically switches contexts upon an interrupt; and user and kernel mode switching, essential for operating system functionality.
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define three types of kernal-mode to user mode transfersSolution.pdf
- 1. define three types of kernal-mode to user mode transfers Solution 1.Multitasking ; In order to excute multiple jobs , process switching is needed some times.In order to load programmes CPU moves from kernal mode to user mode 2.Interrupt handling ; Modern architectures are interrupt driven.When an interrupt occurs, the hardware automatically switches a part of the context (kernal-mode to user mode or usermode to kernal-mode) 3.User and kernel mode switching ; A transfer between user mode and kernel mode is required in an OS, then user and kernal mode switching takes place .