Consider a demand-paging system with the following time-measured utilizations:
$CPU$ $utilization$ $20$$\%$
$Paging$ $disk$ $97.7$$\%$
$Other$ $I/O$ $devices$ $5$$\%$
For each of the following, indicate whether it will (or is likely to) improve CPU utilization. Explain your answers.
$a$. Install a faster CPU.
$b$. Install a bigger paging disk.
$c$. Increase the degree of multiprogramming.
$d$. Decrease the degree of multiprogramming.
$e$. Install more main memory.
$f$. Install a faster hard disk or multiple controllers with multiple hard disks.
$g$. Add prepaging to the page-fetch algorithms.
$h$. Increase the page size.
