Unit-wise Operating System (OS) Study Material
OS Fundamentals: Introductory Overview and Definitions, Objectives of the OS, OS Functions, Definitions of Each Type of OS, Structural Characteristics of the OS and Services Provided by the OS.
Unit 1: The Basics of Operating Systems
This introduces all key elements regarding the Basics of an Operating System:
- Meaning and Definition of OS
- Objectives of the OS
- Functions of an OS
- Types of OS (Batch, Time Sharing, Distributed компьютер and Networked)
Unit 2: From Process Management to Process Control and OS Scheduling
Discussion of Basic Process Concepts Defining and, Process States the states, PCB (Process Control Block), OS Methods of Scheduling a Process (Use of various Scheduling Algorithms), Interprocess Communication.
Unit 3: Understanding How Memory Is Managed in an Operating System (Efficient Use of Available Memory)
Description of the Structure of Memory (Main Memory, Memory Array), Different Types of Memory Hierarchy (i.e., Paging vs. Segmentation), Virtual Memory and Algorithms Used for Page Replacement.
Unit 4: How Data Is Managed/Stored Within the Operating System (File Systems)
Use of Disk Files, Types of Files, Methods of Accessing Files, Different Directory Structures, Methods of Allocating Files to Other Systems for Use, and How OS Digital Storage Devices Are Created/Formatted.
Unit 5: I/O Device Management and OS Security Topics
Description/Function of Hardware (I/O Devices), Use of Various Disk Drive Scheduling Algorithms to Determine Which I/O Device Will Operate First, System Protection (What OS Will Not Allow From The Outside), Security of the Operating System.
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