Operating System

Introduction: Introduction: What is an Operating System, Evolution of Operating Systems-Simple Batch Systems, Multiprogrammed Batch systems, TimeSharing Systems, Personal-Computer systems, Parallel systems, Distributed Systems, Real-Time Systems, Functions of Operating System, Operating System – A Resource Manager.

Process Management: Process definition, Process states, Process Control Block (PCB), Interrupts, Interprocess Communication(IPC), Context Switching, Threads, Thread states and operations, Threading Models, Types of Schedulers (long-term, short-term, medium-term), preemptive vs nonpreemptive scheduling, scheduling criteria, objective, scheduling algorithms (FCFS, SJF, RR, Priority Scheduling), demand scheduling, real time scheduling, Process Synchronization: Cooperating processes and race condition, Mutual exclusion, software solution to Mutual exclusion problem, hardware solution to Mutual exclusion problem, semaphores, Critical section problems. Case study on Dining philosopher problem.

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