TechVani: Operating Systems

TECHVANI // LEARN. BUILD. TEST.

Learn the tech. Build the idea.

Clear study notes, tested lab files and practical guides for coding, AI and digital safety.

Explore Latest →

🔥 Trending Topics

AI tools & updatesAI & Tech

Useful apps for studentsApps & Tools

Developer tips & shortcutsCoding

Cybersecurity basicsSecurity

New technology explainedTechnology

🤖 AI & TechAI news, tools & guides 📱 Apps & ToolsUseful apps & websites 💻 CodingProgramming & web development 🎓 Student TechStudy & career technology 🔐 Cyber SecuritySafety & awareness

Latest Posts

Circuit Notebook theme

Exam Notes

📚 BTech CSE Exam Notes

Find Semester 1-8 subjects in one place. Choose a semester and open the notes you need. This is a general study guide, not an official syllabus.

Open Exam Notes →🧪 Open Lab Files →

Exam Numericals & Study Series

Practice CPU scheduling and explore OS and DBMS topics in separate, easy-to-follow parts. New topics will appear in the hub as they are published.

Open Numericals Hub →

Start here and stay in touch

New to TechVani? Start with our free AI tools guide for students. It covers which tools to try and what to check before relying on an answer.

For step-by-step videos, visit SiteSudhar on YouTube.

Join TechVani on WhatsApp

Get new AI tools and coding guides in your WhatsApp Updates tab.

Browse Topics

AI Tools
Coding

Popular Posts

Compiler Design FIRST and FOLLOW: 6 Solved Problems with LL(1) Parsing Tables

FIRST tells you which terminal can start a derived string. It also contains ε when the string can vanish. FOLLOW tells you which terminal...
Primary Key and Foreign Key in DBMS: Relational Model | Part 1

DBMS Part 1: Relational Model, Primary Key aur Foreign Key Yeh introductory note hai, poora DBMS nahi. Is series me aage ER model, SQL, rel...
What Is Generative AI? How It Works, Uses, Benefits & Future

Checked October 12, 2026. Generative AI can help draft an explanation, an image or a program. The useful skill is knowing what to give it, ...
localStorage vs sessionStorage in JavaScript: Differences, Examples and Security Tips

Should your JavaScript app remember a choice after the browser closes, or only until a tab is closed? That is the practical difference betw...
Top 7 AI Tools Every Student Should Know in 2026

Checked October 12, 2026. You do not need seven AI subscriptions to study well. Choose a tool for a particular task, keep your own reasonin...

CODETechVani

TechVani

Banker's Algorithm: Safe Sequence and 6 Solved Problems

The Banker's algorithm grants a resource request only if the system stays in a safe state afterwards. A state is safe if there is an order in which every process can finish, using the free resources plus whatever fi…

Read Article →

TechVani

TechVani

FIFO vs LRU vs Optimal Page Replacement: 6 Solved Problems

FIFO vs LRU page replacement differs in the victim rule: FIFO evicts the page loaded earliest, while LRU evicts the page unused for the longest time. A hit updates LRU's recency but does not change FIFO's arriva…
Read Article →

TechVani

TechVani

Process States in OS: Diagram, PCB and Context Switching

OS Notes Part 1: Process States, PCB and Context Switching The basic process states in OS are Ready, Running and Blocked: Ready waits for a CPU, Running uses it, and Blocked waits for an event such as I/O completion. Sch…
Read Article →

Older Posts Home

⭐ Popular Topics

AI
Artificial Intelligence
AI & Tech

Programming & Web Dev
Coding

APP
Free Apps & Websites
Apps & Tools

SEC
Cyber Safety Basics
Security

🔎 Search TechVani
Find AI, technology, coding and app articles from the blog.

Learn the tech. Build the idea.

Latest Posts

Circuit Notebook theme

Exam Notes

📚 BTech CSE Exam Notes

Exam Numericals & Study Series

Pages

Start here and stay in touch

Browse Topics

Popular Posts

Banker's Algorithm: Safe Sequence and 6 Solved Problems

FIFO vs LRU vs Optimal Page Replacement: 6 Solved Problems

Process States in OS: Diagram, PCB and Context Switching