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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 .

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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 .