BCA Semester III - Operating System Concepts
Operating System Concepts
Updated on Jun, 2025
Language - English
IT and Software ,Operating Systems and Servers,Linux
Lectures -85
Quizzes -1
Duration -10 hours
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Course Description
Unit I
- Introduction: Definition of Operating System, Computer-System Organization, ComputerSystem Architecture, Operating-System Structure, Operating System Structures: Operating- System
- Services, System Calls, Types of System Calls. Process: Process Concept, Process Scheduling,
- Operations on Processes, Inter process Communication, Threads: Overview, Multi core
- Programming, Multithreading Models, Threading Issues. CPU Scheduling: Basic Concepts,
- Scheduling Criteria, Scheduling Algorithms
Unit II
- Process Synchronization: Background, The Critical-Section Problem, Peterson’sSolution,
- Synchronization Hardware, Mutex Locks, Semaphores, Classic Problems of Synchronization, Monitors.
- Deadlocks: System Model, Deadlock Characterization, Methods for Handling Deadlocks,
- Deadlock Prevention, Deadlock Avoidance, Deadlock Detection, Recovery from Deadlock.
Unit III
- Main Memory: Background, Swapping, Contiguous Memory Allocation, Segmentation, Paging,
- Structure of the Page Table.
- Virtual Memory: Background, Demand Paging, Page Replacement, Allocation of Frames,
- Thrashing, Memory-Mapped Files, Mass-Storage Structure, Overview of Mass- Storage
- Structure, Disk Structure, Disk Attachment, Disk Scheduling, Disk Formatting, RAID Structure
Unit IV
- File-System Interface: File Concept, Access Methods, Directory and Disk Structure, Protection.
- File-System Implementation: File-System Structure, File-System Implementation,
- Directory Implementation, Allocation Methods, Free-Space Management, Efficiency and Performance.
- I/O Systems: Overview, Application I/O Interface, Kernel I/O Subsystem, Transforming
- I/O Requests to Hardware Operations.
Unit V
- Protection: Goals of Protection, Principles of Protection, Domain of Protection Access Matrix,
- Implementation of the Access Matrix, Access Control, Revocation of Access Rights, CapabilityBased Systems.
- Security: The Security Problem, Program Threats, System and Network Threats,
- Cryptography as a Security Tool, User Authentication.
Prerequisites
No Prior knowledge Required.
Curriculum
Check out the detailed breakdown of what’s inside the course
Unit 1 - Introduction
45 Lectures
-
What is an operating system?
03:46
03:46
-
OS traditional view, an illusionist, a government.
05:02
05:02
-
OS salient features.
05:44
05:44
-
Computer system structure
01:50
01:50
-
Modern OS functionalities
06:05
06:05
-
OS principles
05:05
05:05
-
Layered computing systems
03:39
03:39
-
Layered design exceptions
05:29
05:29
-
Performance optimization in computing systems
03:42
03:42
-
OS user interface
03:16
03:16
-
OS interfaces
03:30
03:30
-
Protection
04:54
04:54
-
Kernel mode and user mode
03:48
03:48
-
System calls
05:29
05:29
-
Example system calls
02:31
02:31
-
Types of system calls
02:53
02:53
-
Traps
06:24
06:24
-
Application programming interface (API)
03:43
03:43
-
How APIs invoke system calls?
03:09
03:09
-
System call implementation
03:36
03:36
-
Parameter passing to system calls
04:30
04:30
-
When do processes relinquish CPU?
02:43
02:43
-
Process scheduling queuing diagram
03:37
03:37
-
Context switching
05:43
05:43
-
CPU scheduling basics
03:29
03:29
-
CPU-bound and IO-bound processes
03:46
03:46
-
Scheduling performance metrics
03:13
03:13
-
When would CPU scheduler run?
04:06
04:06
-
Turnaround time and waiting time
02:27
02:27
-
CPU scheduling algorithms types and goals
04:07
04:07
-
FCFS Scheduling
04:24
04:24
-
FCFS scheduling example
03:02
03:02
-
FCFS advantages and disadvantages
03:37
03:37
-
Shortest job first (SJF) scheduling
06:49
06:49
-
SJF advantages and disadvantages
03:11
03:11
-
Non-preemptive priority scheduling
04:38
04:38
-
Starvation
02:45
02:45
-
Shortest remaining time first (SRTF) scheduling
06:45
06:45
-
SRTF advantages and disadvantages
01:38
01:38
-
Activity---scheduling algorithms
06:51
06:51
-
Preemptive priority scheduling
07:14
07:14
-
Preemptive priority scheduling advantages and disadvantages
00:47
00:47
-
Round robin (RR) scheduling
03:15
03:15
-
RR scheduling example
05:31
05:31
-
RR scheduling advantages and disadvantages
03:41
03:41
Unit 2 - Process Synchronization:
19 Lectures
Unit 3 - Main Memory
7 Lectures
Unit 4 - File-System Implementation:
9 Lectures
Unit 5 - Protection and Security
4 Lectures
Unit-6 Assessments
1 Lectures
Instructor Details
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