If an instruction takes $${\rm I}$$ microseconds and a page fault takes an additional $$j$$ microseconds, the effective instruction time if on the average a page fault occurs every $$k$$ instruction is:

In a computer system where the ‘best-fit’ algorithm is used for allocating ‘jobs’ to ‘memory partitions’, the following situation was encountered:

When will the $$20$$ $$K$$ job complete?

Which of the following devices should get higher priority in assigning interrupts?

Which of the following is true?