16. "IO instructions are privileged instructions". TRUE or FALSE? 17. "Under certain conditions, a given process can migrate directly from one device queue to another one, by-passing the ready queue." TRUE or FALSE? 18. "In Storage-Device Hierarchy the cost per bit decreases as we move downwards through the levels." TRUE or FALSE? 19. "The short-term (CPU) scheduler determines the number of processes in the main memory." TRUE or FALSE? 20. When browsing the old issues of a computer magazine, you come across an advertisement for a smartphone. It reads: "this system can hold up to 10 different applications in the main memory at a time" Does this mean that this system is necessarily a multiprogrammed one? Why or why not? Explain. Does this mean that this system is necessarily a time-sharing one? Why or why not? Explain