Introduction to Information Systems: Seventh Edition
7th Edition
ISBN: 9781119362913
Author: Rainer
Publisher: John Wiley & Sons Inc
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Expert Solution & Answer
Chapter 8.3, Problem 8.5.2ITA
Explanation of Solution
Impact of wireless technologies on various companies:
Companies follows some ways to attract the customers and advertise their products. They started trying to find the better way to advertise their products. Some companies follows the strategies of attracting customers by means of cell phone. This strategies were followed in order to effectively reach and engage the customers.
Advertises seems benefits in reaching the rural consumers though mobile phone. Wireless technology has aided Unilever’s marketing campaign which helps them to advertise over 8 million of customers...
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Good mrng, please solve this trying to follow this criteria. (use Keil)
Abstract describing the requirements and goals of the assignment.
List file with no errors or warnings.
Brief description of your implementation design and code.
Debugging screen shots for different scenarios with your reference and comments.
Conclusion (and please give me the code without errors, make sure it is working)
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int global_var = 42; //
int* function(int *a) {
int local_var = 10; //
*a = *a + local_var;
int *local_pointer = (int *)malloc (size of (int) * 64); // Allocated array with 64 integers
return local_pinter;
}
int main() {
int local_main[1024*1024*1024*1024*1024] = {0}; // initialize an array and set all items as 0
int *heap_var = (int *)malloc(size of(int) * 16); // Allocated array with 16 integers
*heap_var = 100;
function(heap_var);
printf(“the value is %d\n”, *heap_var);
free(heap_var); // release the memory
return 0;
}
1) draw the memory layout of the created process, which should include text, data, heap and stack [2 marks].
2) Indicate which section the variables are allocated [2 marks]:
global_var
local_var, local_pointer
local_main
heap_var, *heap_var (the data that it points to)
3) Does this code have memory leaking (heap memory is not released)? [2 marks]
4) The…
8. List three HDD scheduling algorithms. [2 marks]
9. True or False? The NVM has the same scheduling algorithms with HDD. Explain
why? [2 marks]
10. Why the modern mouses use polling to detect movements instead of interrupts? [2
marks]
11. What is thrashing? How does it happen? [2 marks]
12. Given a reference string of page numbers
7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1
and 4 frames show how the page replacement algorithms work, and how many page
faults? [6 marks],
1) FIFO algorithm? [2 marks]
2) Optimal algorithm? [2 marks]
3) LRU algorithm? [2 marks]
13. List at least three file systems that you know. [2 marks]
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Chapter 8 Solutions
Introduction to Information Systems: Seventh Edition
Ch. 8.1 - Prob. 8.1.1ITACh. 8.1 - Prob. 8.1.2ITACh. 8.1 - Prob. 8.1.3ITACh. 8.1 - Prob. 8.2.1ITACh. 8.1 - Prob. 8.2.2ITACh. 8.2 - Prob. 8.3.1ITACh. 8.2 - Prob. 8.3.2ITACh. 8.3 - Prob. 8.4.1ITACh. 8.3 - Prob. 8.4.3ITACh. 8.3 - Prob. 8.4.4ITA
Ch. 8.3 - Prob. 8.5.1ITACh. 8.3 - Prob. 8.5.2ITACh. 8.4 - Prob. 8.6.1ITACh. 8.4 - Prob. 8.6.2ITACh. 8.4 - Prob. 8.6.3ITACh. 8 - Prob. 1OCCh. 8 - Prob. 2OCCh. 8 - Prob. 1DQCh. 8 - Prob. 2DQCh. 8 - Prob. 3DQCh. 8 - Prob. 4DQCh. 8 - Prob. 5DQCh. 8 - Prob. 6DQCh. 8 - Prob. 7DQCh. 8 - Prob. 8DQCh. 8 - Prob. 9DQCh. 8 - Prob. 10DQCh. 8 - Prob. 11DQCh. 8 - Prob. 12DQCh. 8 - Prob. 13DQCh. 8 - Prob. 1PSACh. 8 - Prob. 2PSACh. 8 - Prob. 3PSACh. 8 - Prob. 4PSACh. 8 - Prob. 5PSACh. 8 - Prob. 6PSACh. 8 - Prob. 8PSACh. 8 - Prob. 11PSACh. 8 - Prob. 12PSACh. 8 - Prob. 1CCCh. 8 - Prob. 2CCCh. 8 - Prob. 3CCCh. 8 - Prob. 4CC
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