Internet Basics (How It Works, Terms, Protocols)
A clear introduction to how the internet works, key terms, and the protocols that move data around the world.
A clear introduction to how the internet works, key terms, and the protocols that move data around the world. This guide is written for Indian students, government exam aspirants, and typing learners who want clear, practical, and exam-relevant information they can apply immediately.
Table of Contents
- What is the internet
- Key terms
- Main protocols
- Common security terms
- Practical Tips
- Frequently Asked Questions
- Conclusion
What is the internet
The internet is a global network of computers connected through standardised protocols. It allows data to move between devices anywhere in the world.
Key terms
IP address (unique number for each device), domain name (human-readable web address), DNS (translates names to IPs), URL (full web address), browser (software to access web), ISP (internet service provider).
Main protocols
HTTP/HTTPS (web pages), FTP (file transfer), SMTP/POP/IMAP (email), TCP/IP (data routing). TCP/IP is the foundational protocol of the entire internet.
Common security terms
Firewall (blocks unwanted traffic), VPN (encrypted tunnel), HTTPS (encrypted web), phishing (fake site stealing credentials), malware (malicious software).
Practical Tips
- HTTPS sites are safer than HTTP — always check the padlock icon.
- Never share passwords through email or chat.
- Use a password manager for unique passwords per site.
Frequently Asked Questions
Q: What is the difference between internet and web?
The internet is the infrastructure; the web is one application running on it (websites accessed via browsers).
Q: What is bandwidth?
The maximum data rate of a connection, usually measured in Mbps.
Conclusion
Consistent application of the techniques above will produce visible results within weeks. Bookmark this guide, share it with a friend preparing alongside you, and return to it whenever you need a refresher. For more guides, browse the TypingMaster India blog or try a free typing test to measure where you stand today.