operating system
Which of the following do not belong to queues for processes at different stages of their lifecycle?
Job queue |
Device queue |
Message queue |
Ready queue |
operating system Which of the following do not belong to queues for processes at different stages...
You are to simulate a dispatcher using a priority queue system. New processes are to be entered using a GUI with priority included (numbering should be automatic). Processes are also to be terminated by GUI command. Context switches are to be by command with the cause of the switch being immaterial. Assume only one CPU. Priorities and numbers of processes can be kept small, just big enough to demonstrate the below listed functionality. You may pre-populate the queues initially from...
2. Consider an operating system that has the fllowing process states, new, ready, waiting (or blocking), running, and terminated. Answer the following questions (a) Draw a process state transition diagram (b) Explain what may cause a process to enter the waiting state from the running state. (c) Do we need a queue for the processes in the running state? Justify your answer (d) Describe the actions taken by a kernel to context-switch between processes
2. Consider an operating system that...
1. What are the different states of a process. Explain each state in detail. 2. What is the Process Control Block? Explain what it contains about each process. 3. Explain the procedure of switching CPU control from process to process. 4. Explain in details job, device and ready queues. 5. Write and Explain a queuing diagram . 6. Explain the two methods to create new processes. 7. Explain different types of termination of processes and Zombie and orphan processes. 8....
java Operating System Scheduler Two scheduling strategies for an operating system scheduler are first come first serve (FCFS) and fixed priority pre-emptive scheduling (FPPS). Since queues operate on a first come first serve basis, FCFS is implemented using a queue. Similarly, FPPS is implemented using a priority queue. The operating system scheduler simulation is already provided for you. To use it you simply need to modify the main method to run the simulator using either the LinkedListQueue or the PriorityQueue. Run...
Assume that you have four different processes with the following attributes: Process Arrival time. CPU Burst. I/O Burst Total CPU time A. 0 4 4 9 B 3 2 3 7 C 6 5 1 11 D 12 1 1 5 As we did in class, perform a scheduling simulation using these four processes according to the following algorithms: 1) First Come First Serve 2) Round Robin with time slice = 1 3) Round Robin with time slice = 3...
31. (12pts) Four processes pi, P2, Ps and pa arrive in the ready queue at times 0,3,8,11 and ks respectively. Draw the Gantt chart their running timcs arc 18,13,11, and 14 clock tic for the system and compute the average response and waiting time for the following algorithms. Ignore process switching time (a) Round Robin (quantum 10) (b) Shortest Job First (c) Preemptive Shortest Job First
31. (12pts) Four processes pi, P2, Ps and pa arrive in the ready queue...
State transition diagram used for operating system management of the Process Control Block has the following states A New (Create)– In this step, process is about to be created but not yet created, it is the program which is present in secondary memory that will be picked up by OS to create the process. Ready -> Ready to run. After creation of a process, the process enters the ready state i.e. the process is loaded into the main memory. The...
Q.6. Consider a preemptive operating system where processes have priorities and a running process gets preempted (i.e., forced to leave the CPU) as soon as a higher priority process is ready to run. The life cycle of a process, other than the very first process, begins with a "spawn" by another process and ends with either a regular "exit" by the process or a "terminate (process_id)" command by another process of equal or higher priority. COMP 346 – Fall 2019...
This assignment requires you to create simulations for different
scheduling algorithms commonly employed by operating systems to
achieve multiprogramming. All problems in this assignment assume
the following:
The simulations you will be creating are for a uniprocessor
system (single CPU).
Processes in these simulations will require CPU bursts of one or
more time units followed by I/O bursts of one or more time units.
For simplicity’s sake, when more than one process is executing its
I/O burst at the same...
Which of the following is not a task performed by an operating system? Multiple Choice Manage job scheduling and multiprogramming Translate high-level languages to machine-level language Support applications and facilitate their access to specified resources Provide controlled access to data and processes data