Course module
Operating System (IT Specialist) — NIACL AO 2026 IT SPECIALIST
- Lessons
- 276
- Duration
- 20 hr 52 min
- PYQs
- 416
- Practice
- 1658
6% of this course's PYQ weight is covered in this module.
Syllabus index
Lessons in this module
Introduction to OS
OS Basics & Goals
OS Types & Evolution
- OS Types & EvolutionPdf
- Batch Operating SystemDrm Video
- SpoolingDrm Video
- Multiprogramming OSDrm Video
- Multitasking OSDrm Video
- multiprocessing operating systemDrm Video
- Types of Multiprocessing Operating SystemDrm Video
- Real Time Operating SystemDrm Video
- Types of Real Time Operating SystemDrm Video
- Distributed Operating SystemDrm Video
OS Structure & Interface
System Calls & Dual Mode
Process Management
Process Basics & PCB
Process State & Lifecycle
Schedulers & Switching
CPU Scheduling
Basics & Criteria
FCFS Scheduling
SJF & SRTF Scheduling
Priority Scheduling
Round Robin Scheduling
LJF & HRRN
Process Synchronization
Intro & Critical Section
Two Process Solutions
Semaphores & Ordering
Classical Problems
Types of Semaphores
Deadlock
Basics & Conditions
Deadlock Prevention
Avoidance & Banker's Algo
Threads & Process Creation
Fork System Call
Memory Management
Basics & Hierarchy
Contiguous Allocation
- Contiguous AllocationPdf
- Contiguous Allocation Policy and Address TranslationDrm Video
- Improvement in Address TranslationDrm Video
- Basics of Space Allocation in Contiguous AllocationDrm Video
- First Fit PolicyDrm Video
- Best Fit PolicyDrm Video
- Worst Fit PolicyDrm Video
- Next Fit PolicyDrm Video
- External FragmentationDrm Video
- Internal FragmentationDrm Video
- Conclusion of External FragmentationDrm Video
Paging & TLB
- Paging & TLBPdf
- Basic of PagingDrm Video
- Understanding Paging FurtherDrm Video
- Logical to Physical Address Translation in PagingDrm Video
- Page Table in PagingDrm Video
- Advantage and Disadvantage of PagingDrm Video
- Address to Memory TranslationDrm Video
- Memory to Address TranslationDrm Video
- Numerical background of PagingDrm Video
- Numerical of Page TableDrm Video
- Understanding Translation Look Aside BufferDrm Video
- Disadvantage of TLBDrm Video
Multilevel Paging
Virtual Memory
Demand Paging Basics
FIFO Page Replacement
Optimal Replacement
LRU Page Replacement
Stack & Counting Algos
Disc Scheduling
FCFS & SSTF Scheduling
SCAN & C-SCAN Algos
LOOK & C-LOOK Algos
File Management
File Allocation Methods
Free Space Management
Directories & Structure
- Directories & StructurePdf
- File Access Methods and their types-Drm Video
- Directory and Disk StructureDrm Video
- Directory StructureDrm Video
- Acyclic Graph DirectoryDrm Video
- General Graph DirectoryDrm Video
- File System MountingDrm Video
- File sharingDrm Video
- File System Structure and Implementation-Drm Video
Storage & RAID Management
Windows OS
Design & Architecture
Core Services & Session
- Core Services & SessionPdf
- Executive - Object ManagerDrm Video
- Executive - Naming ObjectsDrm Video
- Executive -Virtual Memory ManagerDrm Video
- Executive - Process ManagerDrm Video
- Executive - Local Procedure Call FacilityDrm Video
- Executive - I-O ManagerDrm Video
- Executive - Security Reference MonitorDrm Video
- Executive - Plus-and-play-ManagerDrm Video
File & Network Services
- File & Network ServicesPdf
- Environmental Subsystems and File SystemDrm Video
- File System Recovery and SecurityDrm Video
- Volume Management and Fault ToleranceDrm Video
- File System - Compression and Reparse PointDrm Video
- NetworkingDrm Video
- Access to Remote FilesDrm Video
- Networking - DomainsDrm Video
- Name Resolution in TCP-IP NetworkDrm Video
Prog & Memory Interface
Linux OS
Linux Kernel Architecture
Process & Scheduling
File Systems & I/O
IPC & Networking
Security
Security Fundamentals
Access Control Models
Program & System Threats
Cryptography & Encryption
Authentication & Defenses
Distributed Systems
Distributed System Basic
Network OS Models
Communication & Protocols
Routing & Connectivity
Virtual Machines
VM Fundamentals
Virtualization Techniques
Previous-year questions
PYQ collectionPYQ Questions16 questionsPYQ collectionPYQ Questions9 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions41 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions20 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions41 questionsPYQ collectionPYQ Questions17 questionsPYQ collectionPYQ Questions7 questionsPYQ collectionPYQ Questions15 questionsPYQ collectionPYQ Questions12 questionsPYQ collectionPYQ Questions24 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions77 questionsPYQ collectionPYQ Questions9 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions12 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions36 questionsPYQ collectionPYQ Questions7 questionsPYQ collectionPYQ Questions10 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions31 questionsPYQ collectionPYQ Questions11 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions24 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions16 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions43 questionsPYQ collectionPYQ Questions20 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions7 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions48 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions7 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions6 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions27 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions9 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions16 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions6 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions416 questions
Explore the course
- Quantitative Aptitude
- Reasoning Ability
- English Language
- General Awareness
- C Concepts + MCQs (IT Specialist)
- Java (IT Specialist)
- Python (IT Specialist)
- OOPs (IT Specialist)
- DBMS (IT Specialist)
- SQL (IT Specialist)
- Software Engineering (IT Specialist)
- Data Structure (IT Specialist)
- Compiler Design (IT Specialist)
- Computer Architecture (IT Specialist)
- Data Communication & Networking (IT Specialist)
- Descriptive Test (Main Exam)
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