COMPUTER SCIENCE ILLUMIN.-TEXT
COMPUTER SCIENCE ILLUMIN.-TEXT
6th Edition
ISBN: 2810016866372
Author: Dale
Publisher: JONES+BART
Question
Book Icon
Chapter 11, Problem 56E
Program Plan Intro

Disk scheduling:

  • In a computer, multiple processes run over the same time.
  • To handle this multiple processes, the operating system decides which process has to be executed first. This technique is called as disk scheduling.
  • There are different types of scheduling algorithms. They are as follows:
    • First-come, First-served (FCFS)
    • Shortest-Seek-Time-First (SSTF)
    • SCAN

SCAN disk scheduling algorithm:

  • The SCAN algorithm is called as elevator algorithm.
  • In the SCAN algorithm, the disk arm starts at one end of the disk and moves toward the other end.
  • It processes the request for each cylinder until it gets to the other end of the disk.
  • At the other end, it reverses the direction of head movement.
  • The head continuously moves back and forth across the disk based upon the closest distance.

Blurred answer
Students have asked these similar questions
Explian this C program  #include <stdio.h> unsigned int rotateRight(unsigned int num, unsigned int bits) { unsignedint bit_count =sizeof(unsignedint) *8; bits = bits % bit_count; // Handle cases where bits >= bit_count return (num >> bits) | (num << (bit_count - bits)); } int main() { unsignedint num, bits; printf("Enter a number: "); scanf("%u", &num); printf("Enter the number of bits to shift: "); scanf("%u", &bits); printf("After rotation: %u\n", rotateRight(num, bits)); return0; }
Explian thiS C program #include<stdio.h> int countSetBits(int n) {    int count = 0;    while (n) {        count += n & 1;        n >>= 1;    }    return count;} int main() {    int num;    printf("Enter a number: ");    scanf("%d", &num);    printf("Output: %d units\n", countSetBits(num));    return 0;}
Please provide the Mathematica code
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education