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Dept : IT

Sem : 3

Regul : 2023

Faculty : R.vaishnavi

phone : NIL

E-mail : vaishnavi.r.it@snsce.ac.in

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Lecture Notes

UNIT 1:

Interprocess communication

INTRODUCTION

Computer system organization

Computer system Architecture

System Programs

System calls

Evolution of OS

OS Structure and Operations

UNIT 2:

Process Concept

Operations on Processes

CPU Scheduling

Threads

Inter-process Communication

Process Synchronization

Semaphores

Deadlocks

UNIT 3:

Virtual memory

Structure of the page table

Segmentation Paging

Page replacement

Main Memory

Demand Paging

Allocation of Frames

Allocating Kernel Memory

UNIT 4:

Allocation methods

Directory structure

Disk scheduling and management

File system Implementation

File system storage

I/O Systems

Mass storage systems

UNIT 5:

iOS

Virtual Machines

Implementation

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