Computers and Technology, 16.06.2021 19:40 Kkampudiaa

Consider a disk that is scheduled as follows: the disk head moves from the first cylinder to the last cylinder repeatedly, processing the I/O requests in various cylinders along the way. That is, after it reaches the last cylinder, it first moves back to the first cylinder, without processing any requests and then resumes processing of requests as it scans from the first cylinder. At time t, let the disk have the following requests in its queue: Request Cylinder
R1 25
R2 12
R3 47
R4 32
R5 74
R6 63
R7 17
R8 91

Let the most recent I/O request processed by the disk be in cylinder 40 (i. e., the disk is scanning from cylinder 40 towards the higher-numbered cylinders at time t). Also, assume that no other requests arrive in the disk queue until all of the above requests are processed. Determine the schedule of processing for the above set of requests.

Based on the schedule, identify the TRUE statement among the following, with respect to the relative order of processing the various requests.

a. R2 is processed immediately after R8.
b. R1 is processed immediately after R4.
c. R4 is the first request processed.
d. R4 is processed immediately after R8

Answers: 2

Show answers

Another question on Computers and Technology

Computers and Technology, 21.06.2019 23:30

Acomputer is a multipurpose device that accepts input, processes data, stores data, and produces output, all according to a series of stored . the processing unit of most modern computers is a(n) . the instructions that tell a computer how to carry out a task are referred to as computer , which are distributed as software. computers run three main types of software: software, system software, and development tools. an example of system software is a computer system, which is essentially the master controller for all the activities that a digital device performs. digital devices are constructed using tiny electronic components that represent data bits as electrical signals. the system unit houses the system board, which contains several circuits made from semiconducting materials. computers come in three popular form factors: component, , and slate. many of today's digital devices operate on battery power supplied by ion batteries. battery life and lifespan can be extended by following good battery management practices.

Answers: 3

Answer

Computers and Technology, 22.06.2019 19:40

Solve the following javafx application: write a javafx application that analyzes a word. the user would type the word in a text field, and the application provides three buttons for the following: - one button, when clicked, displays the length of the word.- another button, when clicked, displays the number of vowels in the word.- another button, when clicked, displays the number of uppercase letters in the word(use the gridpane or hbox and vbox to organize the gui controls).

Answers: 1

Answer

Computers and Technology, 22.06.2019 20:10

Assume that minutes is an int variable whose value is 0 or positive. write an expression whose value is "undercooked" or "soft-boiled" or "medium-boiled" or "hard-boiled" or "overcooked" based on the value of minutes. in particular: if the value of minutes is less than 2 the expression's value is "undercooked"; 2-4 would be a "soft-boiled", 5-7 would be "medium-boiled", 8-11 would be "hard-boiled" and 12 or more would be a "overcooked".

Answers: 1

Answer

Computers and Technology, 23.06.2019 14:30

Choose the answers that best complete each sentence. on average,are more expensive than other kinds of postsecondary schools. the cost of room and board includes. to save money, some students attend auniversity in their home state.

Answers: 2

Answer

You know the right answer?

Consider a disk that is scheduled as follows: the disk head moves from the first cylinder to the las...

Questions