CSCI430: Introduction to Operating Systems - Process State Simulation - IT Assignment Help

Assignment Task:

Overview

In this assignment, we will simulate a three-stage process model (ready, running and blocked) and a simple process control block structure as introduced in Chapter 3 of our textbook. This simulation will utilize a ready queue and a list of blocked processes. We will simulate processes being created, deleted, timing out because they exceed their time quantum, and becoming blocked and unblocked because of (simulated) I/O events. Questions

• How does round-robin scheduling work?

• How does an operating system manage processes, move them between ready, running and blocked states, and determine which process is scheduled next?

• What is the purpose of the process control block? How does the PCB help an operating system manage and keep track of processes?

Objectives

• Explore the Process state models from an implementation point of view.

• Practice using basic queue data types and implementing in C.

• Use C/C++ data structures to implement a process control block and round robin scheduling queues.

• Learn about Process switching and multiprogramming concepts.

• Practice using STL queues and list data structures.

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