Operating System Basics 🔥 Process, Thread, PCB & Context Switching Explained | Placement Series #OS

What actually happens when a program starts running? 🤔 In this video, we’ll understand the core concepts of Operating Systems that are frequently asked in software engineering interviews and placement exams. Instead of just memorizing definitions, we’ll understand these concepts with real-world examples, simple diagrams, and practical explanations. 📌 Topics Covered: 🔹 What is an Operating System? 🔹 Program vs Process 🔹 What is a Process? 🔹 Process States 🔹 What is a Thread? 🔹 Process vs Thread 🔹 What is a PCB (Process Control Block)? 🔹 What information does a PCB contain? 🔹 What is Context Switching? 🔹 How does Context Switching happen? 🔹 Context Switching Overhead 🔹 Process, Thread, PCB & Context Switching — How everything connects 🎯 Placement & Interview Focus By the end of this video, you should be able to explain these concepts confidently in an interview—not just remember their definitions. Learn the concept → Understand the example → Explain it confidently → Crack the interview. 🚀 This is Part 1 of the Operating System Placement Preparation Series. If you're preparing for software engineering placements, coding interviews, or technical interviews, make sure to follow the complete OS series. #OperatingSystem #OS #Process #Thread #PCB #ContextSwitching #OSInterview #PlacementPreparation #SoftwareEngineering #TechnicalInterview #CodingInterview #ComputerScience #EngineeringStudents