what is an operating system? its notes free watch

Operating Systems Lecture Notes

1. Introduction
2. History of Operating Systems
3. Operating Systems Structure
   • System Component
   • Operating System Services
   • System Calls and System Programs
   • Layered Approach System Design
   • Mechanism and Policy
4. Process
   • Definition of Process  
   • Process State
   • Process Operations
   • Process Control Block
5. Threads
6. Solaris-2 Operating Systems
7. CPU/Process Scheduling
8. Schedule Algorithm
   • FCFS Scheduling
   • Round Robin Scheduling
   • SJF Scheduling
   • SRT Scheduling
   • Priority Scheduling
   • Multilevel Queue Scheduling
   • Multilevel Feedback Queue Scheduling
9. Interprocess Communication
   • Critical Section
   • Mutual Exclusion
   • Achieving Mutual Exclusion
   • Semaphores
10. Deadlock
    • Necessary and Sufficient Deadlock Conditions
    • Dealing with Deadlock Problem
      • Deadlock Prevention
      • Deadlock Avoidance
      • Deadlock Detection
11. Absolutely Important UNIX Commands
12. References