OS-(I) Assignment 4: Demand Paging and Page Replacement Algorithms

NEW. Set A. (1) Write the simulation program to implement demand paging and show the page scheduling and total number of page faults for the following given page reference string. Give input n as the number of memory frames. Reference String : 12,15,12,18,6,8,11,12,19,12,6,8,12,15,19,81) Implement FIFO 2) Implement LRU. Set B. (1)Write the simulation program to implement demand...

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OS-(I) Assignment 3: CPU Scheduling Algorithms

Set A. (1)Write the program to simulate FCFS CPU-scheduling. The arrival time and first CPU- burst for different n number of processes should be input to the algorithm. Assume that the fixed IO waiting time (2 units). The next CPU-burst should be generated randomly. The output should give Gantt chart, turnaround time and waiting time for each process. Also find the average waiting time and turnaround time.. (2) Write the program to simulate...

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OS-(I) Assignment 2: Simulation of Operating System Shell and Its Working

Set A. Write a C program that behaves like a shell which displays the command prompt ‘myshell$’. It accepts the command, tokenize the command line and execute it by creating the child process.Also implement the additional command ‘count’ as  myshell$ count c filename: It will display the number of characters in given file  myshell$ count w filename: It will display the number...

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OS-(I) Assignment 1: Operations on Processes

Set A. (1) Implement the C Program to create a child process using fork(), display parent and child process id. Child process will display the message “I am Child Process” and the parent process should display “I am Parent Process”. (2) Write a program that demonstrates the use of nice() system call. After a child process is started using fork(), assign higher priority to the child using nice() system call. Set B. (1) Implement the C program...

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DS-(I) Assignment 10: Priority Queue and Doubly Ended Queue (Dqueue)

 Set A. a) Implement a priority queue library (PriorityQ.h) of integers using a static implementation of the queue and implementing the below two operations. Write a driver program that includes queue library and calls different queue operations. 1) Add an element with its priority into the queue. 2) Delete an element from queue according to its priority. operations.b) A doubly ended queue allows additions and deletions from both the ends that...

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