Internet Technologies SS1 Digital Technologies Lesson Note

Subject: Digital Technologies 

Class: SS1

What is the Internet?

Most people think the Internet and the World Wide Web are the same thing, but they aren’t!

The Internet is the physical connection—the millions of miles of cables, satellites, and routers that link computers together. The World Wide Web (WWW) is just one of the services we use on that connection (like a road vs. the cars driving on it).

Core Services of the Internet:

1. E-mail: Sending electronic letters.
2. File Transfer (FTP): Moving files from one computer to another.
3. The Web (WWW): Visiting websites with pictures and text.
4. Streaming: Watching videos (YouTube) or listening to music (Spotify).
5. Social Media: Connecting with people (Facebook, X, WhatsApp).

The Web Browser (Your Doorway)

If the Internet is a giant ocean of information, a Web Browser is the boat you use to travel across it.

Definition: A browser is a software application used to locate, retrieve, and display content on the World Wide Web.

Popular Browsers You Should Know:

• Google Chrome: Fast and popular.
• Mozilla Firefox: Known for privacy.
• Safari: Used on Apple devices (iPhones/Macs).
• Microsoft Edge: The default on Windows computers.
• Opera Mini: Very popular in Nigeria because it saves mobile data.

Teacher’s Tip: Tell students that without a browser, you can’t “see” a website. It’s the tool that turns the computer code into the beautiful pages we read.

Search Engines (The Librarian)

There are billions of websites. How do you find the one you need? You use a Search Engine.

Definition: A search engine is a special website designed to help you find information on the Internet. You type in a “Keyword” (like how to bake cake), and the engine gives you a list of websites that have that information.

Common Examples:

1. Google: The biggest and most used.
2. Bing: Owned by Microsoft.
3. Yahoo: One of the oldest search engines.
4. DuckDuckGo: For people who don’t want to be tracked.

The Difference: A Browser is the software you open on your phone; a Search Engine is the website you visit inside that browser to find things.

How to Use the Internet Safely

The Internet is a wonderful place, but it can also be dangerous if you don’t follow the “Rules of the Road.”

1. The “S” in HTTPS: When you visit a website, look at the address bar. If it says https://, the “S” stands for Secure. It means your information is encrypted (hidden) from hackers.
2. Think Before You Click: If a website says you’ve won a “Free iPhone” or asks for your bank password, it’s likely a Phishing Scam.
3. Digital Footprint: Remember that anything you post online (photos, comments) stays there forever, even if you delete it. Be kind and be wise.

Summary and Glossary

To wrap up, the Internet is the most powerful tool ever created. It has turned the world into a “Global Village” where information travels in seconds.

Key Terms to Remember:

• URL (Uniform Resource Locator): The address of a website (e.g., www.waecdirect.org).
• Homepage: The first page you see when you open a website.
• Hyperlink: The blue, underlined text you click to go to a new page.
• ISP (Internet Service Provider): The company you pay for data (e.g., MTN, Airtel, Glo).

Review Questions

1. Explain the difference between a Web Browser and a Search Engine.
2. List four services provided by the Internet.
3. Why is it important to see “HTTPS” on a website before entering personal information?
4. Name the ISP you use at home or on your phone.