Operating System for MSBTE I Scheme (V - CO/CM/CW - 22516)

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Unit - I Overview of Operating System 1.1 Operating System - Concept, Components of operating system, operations of OS: Program Management, Resource management, Security and protection. Views of OS: User view, System View 1.2 Different Types of Operating systems­ Batch operating system, Multi Programmed, Time Shared OS, Multiprocessor Systems, Distributed Systems, Real time systems. Mobile OS (Android, iOS). 1.3 Command line based OS - DOS, UNIX GUI based OS - WINDOWS, LINUX. Unit - II Services and Components of Operating System 2.1 Different Services of Operating System. 2.2 System Calls- Concept, types of system calls 2.3 OS Components:- Process Management, Main Memory Management, File Management, I/O System management, Secondary storage management. 2.4 Use of operating system tool user management, security policy device management, performance monitor, task scheduler Unit - III Process Management 3.1 Process-: process states, Process Control Block (PCB). 3.2 Process Scheduling- Scheduling Queues, Schedulers, Context switch. 3.3 Inter-process communication (IPC): Introduction , shared memory system and message passing system. 3.4 Threads - Benefits, users and kernel threads, Multithreading Models- Many to One, One to One, Many to Many. 3.5 Execute process commands- like ps, wait, sleep, exit, kill Unit - IV CPU Scheduling and Algorithms 4.1 Scheduling types - scheduling Objectives, CPU and I/O burst cycles, Pre-emptive, Non- Pre-emptive Scheduling, Scheduling criteria. 4.2 Types of Scheduling algorithms- First come first served (FCFS), Shot1est Job First (SJF), Shortest Remaining Time(SRTN), Round Robin (RR) Priority scheduling, multilevel queue scheduling. 4.3 Deadlock- System Models, Necessary Conditions leading to Deadlocks, Deadlock Handling- Unit - V Memory Management 5.1 Basic Memory Management­ Partitioning, Fixed and Variable, Free Space management Techniques - Bitmap, Linked List. 5.2 Virtual Memory- Introduction to Paging, Segmentation, Fragmentation and Page fault. 5.3 Page Replacement Algorithms: FIFO, LRU , Optimal. Unit - VI File Management 6.1 File - Concepts, Attributes, Operations, types and File System Structure. 6.2 Access Methods - Sequential, Direct, Swapping, File Allocation Methods ­ Contiguous, Linked, Indexed. 6.3 Directory structure-Single level , two levels, tree-structured directory, Disk Organization and disk Structure ­ Physical structure, Logical structure, Raid structure of disk, raid level 0 to 6.

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Author: [I.A.Dhotre,Mrs.Poonam Vengurlekar, Hitesh K. Mhatre] Pages: 144 Edition: 2022 Vendors: Technical Publications