Computers and Technology, 20.02.2020 22:20 ayandjay01
Suppose we could improve the speed of the CPU in a computer by a factor of 5 (without affecting I/O performance) for 5 times the cost. Also assume that the CPU is used 50% of the time, and the rest of the time the CPU is waiting for I/O. If the CPU is one-third of the total cost of the computer, is increasing the CPU speed by a factor of 5 a good investment from a cost/performance viewpoint?
Answers: 3
Speed up (overall) = 
CPU = 1/3rd the total cost which means rest of the 2/3rd cost remains the same.New cost of machines = (2/3 * 1) + (1/3 * 5) = 2.33This means new machine is 2.33 times the cost of the old machine.
As seen above cost increase is greater then performance increase therefore this is a BAD Investment.
Other questions on the subject: Computers and Technology
Computers and Technology, 23.06.2019 17:00, Alexaisokay1
In which of the following ways can using test-taking tips you? a. you can focus on the information that you need to study. b. you will see the answers to the test. c. you will study more. d. you will be less organized.
Answers: 1
Computers and Technology, 24.06.2019 00:30, sethhdoty
Use the keyword strategy to remember the meaning of the following word. the meaning for the word has been provided. write your keyword and describe the picture you would create in your mind. obfuscate: to make something so confusing that it is difficult to understand.
Answers: 2
Computers and Technology, 24.06.2019 01:30, jadaroyval
Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.
Answers: 3
You know the right answer?
Suppose we could improve the speed of the CPU in a computer by a factor of 5 (without affecting I/O...
Questions in other subjects:
Mathematics, 06.10.2019 04:30
