Question: Instructions for accessing I/O devices are privileged, that is, they can be executed in the kernel (also known as monitor or system) mode, but not

Instructions for accessing I/O devices are privileged, that is, they can be executed in the kernel (also known as monitor or system) mode, but not in the user (that is, application program) mode. Explain briefly why is it so important that the I/O instructions only be executable in the kernel mode

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