CSE321 - Operating System

This repository contains lab assignments, practice tasks, and projects completed during the CSE321 Operating System course. (Summer 2025)

📂 Repository Structure

Lab Sessions

• Lab-1: Linux Shell Commands
• Lab-2: Introducing C Programming I
• Lab-3: Introducing C Programming II
• Lab-4: System Calls & Process Creation
• Lab-5: Threads & Synchronization
• Lab-6: Inter Process Communication

Lab Assignments

• Lab-Assignment-1: System Calls
• Lab-Assignment-2: Multi Threading
• Lab-Assignment-3: Message Queue
• Lab-Assignment-4: Access Control Simulation

Lab Tasks (These tasks were given to evaluate after completion of each lab)

• labtask1: Introducing C Programming I
• labtask2: System Calls & Process Creation
• labtask3: Threads & Synchronization
• labtask4: Inter Process Communication

🛠️ Technologies Used

• Programming Language: C
• Operating System: Linux
• Tools: GCC compiler, Shell scripting, pthread library

🚀 Getting Started

Prerequisites

• Linux operating system (or WSL on Windows)
• GCC compiler
• Basic knowledge of C programming

Compilation

Most C programs can be compiled using:

gcc filename.c -o output
./output

For programs using threads:

gcc filename.c -pthread -o output
./output

📝 Key Topics Covered

Process Management

• Fork, exec, wait system calls
• Process creation and termination
• Process synchronization

Threading

• POSIX threads (pthread)
• Thread creation and joining
• Mutex locks and semaphores
• Race conditions and deadlock prevention

Inter-Process Communication

• Pipes and named pipes
• Message queues
• Shared memory
• Signals

System Calls

• File operations (open, read, write, close)
• Process control (fork, exec, wait)
• Memory management

👤 Author

Shafiur Shuvo

📄 License

This repository is for educational purposes as part of the CSE321 course.

🤝 Contributing

This is a personal academic repository. However, suggestions and feedback are always welcome!

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Last Updated: November 2025