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, say 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.

Afood worker has just rinsed a dish after cleaning it.what should he do next?

Darlene has a balance of 3980 on a credit card with an apr of 22.8% paying off her balance and which of these lengths of time will result in her paying the least amount of interest?

Fanning company is considering the addition of a new product to its cosmetics line. the company has three distinctly different options: a skin cream, a bath oil, or a hair coloring gel. relevant information and budgeted annual income statements for each of the products follow. skin cream bath oil color gel budgeted sales in units (a) 110,000 190,000 70,000 expected sales price (b) $8 $4 $11 variable costs per unit (c) $2 $2 $7 income statements sales revenue (a × b) $880,000 $760,000 $770,000 variable costs (a × c) (220,000) (380,000) (490,000) contribution margin 660,000 380,000 280,000 fixed costs (432,000) (240,000) (76,000) net income $228,000 $140,000 $204,000 required: (a) determine the margin of safety as a percentage for each product. (b) prepare revised income statements for each product, assuming a 20 percent increase in the budgeted sales volume. (c) for each product, determine the percentage change in net income that results from the 20 percent increase in sales. (d) assuming that management is pessimistic and risk averse, which product should the company add to its cosmetics line? (e) assuming that management is optimistic and risk aggressive, which product should the company add to its cosmetics line?