Topics tagged with cs604

CS604 Assignment 3 Solution and Discussion

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idea solution plz

CS604 Assignment 2 Solution and Discussion Spring 2020

cyberian — Invalid Date

@zaasmi said in CS604 Assignment 2 Solution and Discussion Spring 2020: Re: CS604 Assignment 2 Solution and Discussion Operating Systems (CS604) Assignment # 02 Spring 2020 Total marks = 15 Deadline Date 14th June 2020 Please carefully read the following instructions before attempting assignment. RULES FOR MARKING It should be clear that your assignment would not get any credit if:  The assignment is submitted after the due date.  The submitted assignment does not open or file is corrupt.  Strict action will be taken if submitted solution is copied from any other student or from the internet. You should consult the recommended books to clarify your concepts as handouts are not sufficient. You are supposed to submit your assignment in .doc or docx format. Any other formats like scan images, PDF, zip, rar, ppt and bmp etc will not be accepted. Objective: • The objective of this assignment is to learn scheduling algorithm. • To learn and understand different Operating System structure. NOTE No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date. If you find any mistake or confusion in assignment (Question statement), please consult with your instructor before the deadline. After the deadline no queries will be entertained in this regard. For any query, feel free to email at: cs604@vu.edu.pk Question No 01 15 marks Consider the following set of processes, with the CPU burst time given in milliseconds: Process Burst Time P1 10 P2 1 P3 2 P4 1 P5 5 The processes are arrived in the order P1, P2, P3, P4, P5, all at time 0. A. Draw Gantt chart showing the execution of these processes using FCFS and SJF scheduling. B. Calculate the turnaround time of each process for FCFS scheduling algorithm as per part Calculation of part A? C. Calculate the waiting time of each process for SJF scheduling algorithm as per calculation of Part A? Wish you very Best of Luck! CS604_2_Sol_S20_cyberian.pk_.docx

CS604 GDB 1 solution and discussion Fall-2019

zareen — Invalid Date

Re: CS604 GDB 1 solution and discussion

CS604 Assignment 3 Solution and Discussion

zareen — Invalid Date

@zareen said in CS604 Assignment 3 Solution and Discussion: Question No 02 12 Marks Suppose a computer lab comprises of two printers, three scanners, and four ROM writers. There are three programs currently running on some computer. Assume program P1 is currently allocated a printer and two ROM writers and it is waiting for a scanner. Program P2 is allocated a scanner and it is waiting for a printer. Program P3 is allocated two ROM writers, a scanner, and a printer. Draw the corresponding resource allocation graph for these three programs. Also specify if the system is in a deadlocked state or not? [image: fEvrDBH.png] The system is not in deadlock state as it is clear from the above graph it is multi instance and circular weight.

CS604 Assignment 1 Solution and Discussion

zareen — Invalid Date

Solution: Q. 1 Answer: As a process executes, it changes states. The state of a process is defined in part by the current activity of that process. Given below are current and next states of process. According to your understanding, what can be condition that changes one state into another: Sr # Current State -> Next State Conditions 1 Ready->Running Scheduler Dispatch 2 Waiting->Ready I/O or Event Completion 3 Running->Terminated Exit 4 Running->Ready Interrupt 5 New->Ready Admitted Q.2 Answer: The following table contains the list of operations. Write down the Linux commands along with their screenshots for performing these operations: List of Operations List the contents of files to the terminal window. Change the owner and group owner of a file. Compares two text files and show the differences between them Print a string of text to the terminal window. Change the password for a user. You are required to run the respective commands on Ubuntu and provide relevant screen shots of the list of operations as stated in above table. Sr # List of Operations Command 1 List the contents of files to the terminal window. cat 2 Change the owner and group owner of a file. chown 3 Compares two text files and show the differences between them diff 4 Print a string of text to the terminal window. echo 5 Change the password for a user. passwd

CS604 Assignment 2 Solution and Discussion

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Solution: Q. 1 Answer P0 P4 P3 P2 P1 P5 0 2 5 9 10 16 24 Total Waiting Time = 0+2+5+1+10+16 = 34 Seconds Average Waiting Time = 34/6 = 5.66 Seconds Q.2 Answer: Solution 1: P0 P1 P3 P0 P2 P3 P2 P3 P2 P2 0 8 16 24 31 39 47 55 57 65 66 Turnaround time= Exit Time- Arrival Time Turnaround time for P0 = 31-0 = 31 P1 = 16-4 = 12 P2 = 66-18 = 48 P3 = 57- 5= 52 Total Turnaround Time = 39+12+48+52 = 143 Average Turnaround Time = 143 / 4 =35.75 millisecond Waiting Time= Turnaround Time- Burst Time Waiting time for P0 = 31-15 = 16 P1 = 12-8 = 4 P2 = 48-25 = 23 P3 = 52-18 = 34 Total Waiting Time = 16+4+23+34 =77 Average Waiting Time = 77 / 4 =19.25 millisecond Solution 2: P0 P1 P3 P2 P0 P3 P2 P3 P2 P2 0 8 16 24 31 39 47 55 57 65 66 Turnaround time= Exit Time- Arrival Time Turnaround time for P0 = 39-0 = 39 P1 = 16-4 = 12 P2 = 66-18 = 48 P3 = 57- 5= 52 Total Turnaround Time = 39+12+48+52 = 151 Average Turnaround Time = 151 / 4 =37.75 millisecond Waiting Time= Turnaround Time- Burst Time Waiting time for P0 = 39-15 = 24 P1 = 12-8= 4 P2 = 48-25= 23 P3 = 52-18 = 34 Total Waiting Time = 24+0+5+29 = 85 Average Waiting Time = 85 / 4 =21.25 millisecond

CS604 GDB 1 solution and discussion

zaasmi — Invalid Date

@zaasmi Mobile operating system like Android, ios, kindal, Bada, Black berry, Microsoft is an open mobile operating system with massive user/employee base and simplified mobile app development process. Enterprises are leveraging Android or etc and creating custom mobile apps that solves problems and increase value for their business. The mobile os is best for the organization because the every person have the smart phone, and the app is the Develop in low cost.

CS604 Assignment # 03  Solution and Discussion

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Operating Systems (CS604)
Assignment # 03 Spring 2019

Total marks = 20

Deadline Date   23rd July, 2019

Please carefully read the following instructions before attempting assignment.

RULES FOR MARKING
It should be clear that your assignment would not get any credit if:
♣ The assignment is submitted after the due date.
♣ The submitted assignment does not open or file is corrupt.
♣ Strict action will be taken if submitted solution is copied from any other student or from the internet.

You should consult the recommended books to clarify your concepts as handouts are not sufficient.

You are supposed to submit your assignment in .doc or docx format.
Any other formats like scan images, PDF, zip, rar, ppt and bmp etc will not be accepted.

Objective:
• The objective of this assignment is to provide hands on experience of:
• To learn and understand deadlock algorithms in Operating System

NOTE

No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date.

If you find any mistake or confusion in assignment (Question statement), please consult with your instructor before the deadline. After the deadline no queries will be entertained in this regard.

For any query, feel free to email at:
cs604@vu.edu.pk

Question No 1 15 Marks
Consider the below given snapshot of the system. P1 to P5 represent the 5 processes currently running on the system. M, N, O and P represent the resources whereas M, N, O and P have 13, 11, 9 and 16 instances respectively.

Considering the given snapshot, answer the following questions using the banker’s algorithm:
(a) What will be the content of the matrix Available? 5 Marks
(b) What will be the content of the matrix Need? 5 Marks
© Is the system in a safe state Yes/No? If yes, then identify the safe sequence. 5 Marks

Question No 2 5 Marks
Consider the following resource allocation graph. Is there any deadlock in this graph or not? If yes, then mention the dead lock sequence.

Topics tagged with cs604

CS604 Assignment 3 Solution and Discussion

CS604 Assignment 2 Solution and Discussion Spring 2020

CS604 GDB 1 solution and discussion Fall-2019

CS604 Assignment 3 Solution and Discussion

CS604 Assignment 1 Solution and Discussion

CS604 Assignment 2 Solution and Discussion

CS604 GDB 1 solution and discussion

CS604 Assignment # 03 Solution and Discussion

CS604 Assignment # 03  Solution and Discussion