OPERATING SYSTEMS

Paper Code: 
CBCA 201
Credits: 
03
Periods/week: 
03
Max. Marks: 
100.00
Objective: 

This module aims at making students learn about basic concepts of operating systems.

9.00
Unit I: 

What is an Operating System, Simple Batch Systems, Multiprogrammed Batched Systems, Time-Sharing Systems, Personal-Computer Systems, Parallel Systems, Distributed Systems, and Real-Time Systems.

9.00
Unit II: 

Operating-System Structures: System Components, Operating System Services, System Calls, System Structure, Virtual Machines.
Process Management: Process Concept, Process Scheduling, Operation on Processes.

CPU Scheduling: Basic Concepts, Scheduling Criteria.

9.00
Unit III: 

CPU Scheduling Algorithms (FCFS, SJF, Priority, Round-Robin, Multilevel Queue, Multilevel Feedback Queue) Multiple-Processor Scheduling. Process Synchronization: Background, The Critical-Section Problem, Introduction to Semaphores. Deadlocks: System Model, Deadlock Characterization.

9.00
Unit IV: 

Deadlocks: Methods for Handling Deadlocks, Deadlock Prevention, Deadlock Avoidance, Deadlock Detection, and Recovery from Deadlock. Memory Management: Background, Logical versus Physical Address space, Swapping, Contiguous allocation (fragmentation), Paging, Segmentation.

Unit V: 

Virtual Memory: Background, Demand Paging, Page Replacement, Page-replacement Algorithms (FIFO, Optimal, LRU, Counting). File Management: File Concepts (Operations & Attributes), Access Methods, Directory Structure, File System Structure, Allocation Methods (Contiguous Allocation, Linked Allocation, Indexed Allocation).

ESSENTIAL READINGS: 
  1. A. Silbersachatz and P.Galvin, “Operating System Concepts”, Addison-Wesley, 5th Ed., 2001.
REFERENCES: 
  1. Tannenbaum, “Operating Systems”, PHI, 4th Edition, 2000.
  2. Madnick E., Donovan J., “Operating Systems”, Tata McGraw Hill, 2001.
  3. Achyut S. Godbole, “Operating Systems”, Tata Mc-Graw Hill Publishing Company Limited 2000.
  4. Gary Nutt, “Operating System A Modern Perspective (Second Edition)”, Pearson Education 2000.
Academic Year: 
2019-20
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