Operating System

These are my handwritten notes that I prepared while preparing for NTA NET! These notes are just for revision purpose only!!!

• Introduction and Evolution of Operating Systems
• CPU Scheduling
• Process Synchronization
• Critical Section
• Producer-Consumer Problem
• Using Turn Variable for Critical Section  Problem 
• Using Flag Variable for Critical Section Problem
• Peterson Solution
• Semaphores
• Producer-Consumer Problem
• Reader-Writer Problem
• Dining Philosophers Problem
• Deadlock
• Methods for handling Deadlock
• Deadlock Avoidance- BANKER'S Algorithm
• Basics of Memory Management
• Contiguous Memory Allocation
• Non Contiguous Memory Allocation
• Practice Questions on Translations
• Translation Look Aside Buffer
• Practice Questions
• Virtual Memory and Demand Paging
• Page replacement Algorithms
• Architecture of Hard Disk
• Disk Scheduling Algorithms
• System Calls And its Types
• Thrashing 
• File Management
• File Allocation Methods
• System Threats: Virus And Worms
• Unix Commands