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Kernel Mode, interrupts and system calls

Illustrate what are the different functions of Kernel Mode, interrupts and system calls?

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a.      It starts running up the services and processes on the system at that instant when the operating system loads kernel gets activated.

b.    Kernel which is up and running sets up the kernel mode as well as it handles the paging and virtual memory of the system.

c.       It helps in generating the processes that permits the kernel to let them run in the user mode.

d.    Kernel mode never sanction unauthenticated services or processes to enter the system without any permission.

e.    Kernel mode never tolerate the scripts or network to access the computer or any other file without permissions.

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