Internet Technologies - SSS 1 Note
INTERNET TECHNOLOGIES
Class: SSS 1
Term: Second Term
Week: 2
Duration: 80 Minutes (Double Period)
Topic: Internet Technologies
1. Learning Objectives
By the end of the lesson, students should be able to:
- Define the Internet.
- Explain common uses and services of the Internet.
- Identify examples of Internet services.
- Define a search engine and give examples.
- Explain the meaning and functions of a web browser.
- Differentiate between a search engine and a web browser.
- Use appropriate search terms to find information online.
2. Meaning of the Internet
The Internet allows computers, smartphones, tablets, servers and other digital devices to communicate across long distances. Through an Internet connection, people can access information, communicate with others, learn, work and carry out many activities online.
The Internet is not owned or controlled as a single network by one individual. It consists of many interconnected networks operated by different organisations, service providers and institutions.
Examples of Activities That Use the Internet
- Reading news and educational materials.
- Sending and receiving emails.
- Watching educational videos.
- Attending online classes and meetings.
- Searching for information for assignments.
- Using online banking and payment services.
- Communicating through social media and messaging applications.
3. Difference Between the Internet and the World Wide Web
The Internet and the World Wide Web are related, but they do not mean exactly the same thing.
| Internet | World Wide Web (WWW) |
|---|---|
| A worldwide network of interconnected networks. | A collection of interlinked web pages and web resources accessed through the Internet. |
| Supports many services, including email, file transfer and the Web. | Is one of the services available through the Internet. |
| Provides the network infrastructure through which information travels. | Allows users to access websites, web pages, images and other web content. |
4. Internet Services
Internet services are facilities that enable users to communicate, obtain information, share resources and perform tasks through the Internet.
A. Electronic Mail (Email)
Email allows users to send and receive electronic messages over the Internet. Messages may contain text, documents, pictures and other attachments.
Examples: Gmail and Outlook email services.
B. World Wide Web
The Web allows users to access websites and web pages containing text, images, videos, educational resources and other information.
Examples: Educational websites, online newspapers and school websites.
C. Instant Messaging
Instant messaging enables users to exchange text messages and, in many applications, pictures, voice notes and files over the Internet.
Examples: WhatsApp, Telegram and Messenger.
D. Voice and Video Communication
Internet communication applications allow people to make voice calls, video calls and participate in online meetings.
Examples: Zoom, Google Meet and Microsoft Teams.
E. File Transfer and Sharing
File transfer and sharing services allow users to upload, download, send or share files through an Internet connection.
Examples: Uploading an assignment to a school platform or sharing a document through Google Drive.
F. Online Learning
Online learning services provide digital lessons, learning materials, practice tests and virtual classrooms. Students can learn remotely when they have suitable devices and Internet access.
Examples: Online classroom platforms, educational websites and CBT practice portals.
G. Online Banking and Electronic Commerce
Online banking enables customers to access certain banking services through the Internet. Electronic commerce, also called e-commerce, involves buying and selling goods or services online.
Examples: Checking a bank balance through an authorised banking service and purchasing items from an online store.
H. Social Networking
Social networking services allow people to create profiles, share information, communicate and interact with other users or communities.
Examples: Facebook, Instagram and LinkedIn.
| Internet Service | Main Purpose | Example |
|---|---|---|
| Sending and receiving electronic messages | Gmail | |
| World Wide Web | Accessing websites and web pages | Educational websites |
| Instant messaging | Exchanging messages quickly | |
| Video communication | Voice calls, video calls and online meetings | Google Meet |
| File sharing | Sending and sharing digital files | Google Drive |
| Online learning | Accessing lessons and learning resources | Online classroom platforms |
| E-commerce | Buying and selling online | Online stores |
| Social networking | Connecting and interacting with people |
5. Meaning of a Search Engine
Search engines help users locate web pages, images, videos, news and other online information. They maintain an organised index of web content and return results that are relevant to a user's search.
Examples of Search Engines
- Google Search: Helps users find web pages, images, videos and other information.
- Bing: A search engine provided by Microsoft.
- DuckDuckGo: A search engine that emphasises privacy.
- Yahoo Search: A web search service available through Yahoo.
Uses of Search Engines
- Finding information for school assignments.
- Searching for definitions and explanations.
- Locating educational websites and digital books.
- Finding images, videos and news.
- Discovering websites on particular topics.
- Finding information about products, services and organisations.
How to Use a Search Engine
- Connect your device to the Internet.
- Open a web browser.
- Visit a search engine, such as Google Search or Bing.
- Type relevant keywords into the search box.
- Press Enter or select the search button.
- Examine the results and open a relevant page.
- Check the source and accuracy of the information you find.
Tips for Effective Searching
- Use specific keywords related to your topic.
- Avoid entering unnecessary words.
- Use quotation marks to search for an exact phrase when appropriate.
- Compare information from more than one reliable source.
- Check the publication date when searching for current information.
- Do not assume that the first result is always the most accurate.
6. Meaning of a Web Browser
A web browser allows users to enter website addresses, follow links, open web pages, download supported files and interact with websites.
Examples of Web Browsers
- Google Chrome: A web browser developed by Google.
- Mozilla Firefox: A web browser developed by Mozilla.
- Microsoft Edge: A web browser developed by Microsoft.
- Safari: Apple's web browser.
- Opera: A web browser available for different devices.
Functions of a Web Browser
- Opening and displaying websites and web pages.
- Allowing users to enter website addresses.
- Following links from one web page to another.
- Displaying text, images, audio and video supported by websites.
- Managing browsing history and bookmarks.
- Downloading files from websites.
- Supporting secure connections to websites.
7. Difference Between a Search Engine and a Web Browser
Students often confuse search engines with web browsers because they are commonly used together. However, they perform different functions.
| Feature | Search Engine | Web Browser |
|---|---|---|
| Meaning | An online service that helps users find information on the Web. | A software application used to access and display web content. |
| Main function | Finds relevant information based on a search query. | Opens and displays web pages and websites. |
| Examples | Google Search, Bing, DuckDuckGo | Google Chrome, Firefox, Microsoft Edge, Safari |
| How it is used | Usually accessed through a browser or search application. | Installed or provided as software on a device. |
8. Website Addresses and Search Queries
Two common ways to find information online are by entering a website address or by searching with keywords.
Website Address
A website address, commonly called a URL (Uniform Resource Locator), identifies the location of a resource on the Web.
Example: https://www.example.com
A user who knows the correct website address can enter it into the browser's address bar to visit the website directly.
Search Query
A search query is the word, phrase or question entered into a search engine to find information.
Example: advantages of the Internet for students
9. Benefits and Challenges of Using the Internet
Benefits
- Access to information: Users can find educational, scientific and general information.
- Communication: People can exchange messages and communicate over long distances.
- Education: Students and teachers can access online lessons and learning resources.
- Business: Organisations can advertise, sell products and communicate with customers.
- Collaboration: People can work together using shared documents and online meeting platforms.
- Convenience: Many services can be accessed without visiting a physical office.
Challenges
- Misinformation: Some websites publish false or misleading information.
- Cybersecurity threats: Users may encounter phishing, scams and malicious software.
- Privacy risks: Personal information may be collected or exposed improperly.
- Distraction: Excessive time online may interfere with study and other responsibilities.
- Access problems: Poor network coverage, electricity interruptions and data costs may limit access.
- Inappropriate content: Users may encounter content unsuitable for their age or purpose.
Responsible Internet Use
- Use trusted websites for educational research.
- Never share passwords or sensitive personal information carelessly.
- Avoid suspicious links and unexpected attachments.
- Respect other people's privacy and communicate politely.
- Verify information before sharing it with others.
- Follow school rules and applicable laws when using online services.
10. Classroom Activity
Activity: Identify Internet Technologies
- Identify two Internet services you have used or seen others use.
- Name two search engines and two web browsers.
- Using a browser and a search engine, find information about one benefit of the Internet in education, where Internet access is available.
- Write down the keywords you used and the name of one source you found.
- Explain how you could check whether the information is reliable.
If Internet access is unavailable, the teacher can demonstrate the process using screenshots or prepared examples.
11. Summary
- The Internet is a worldwide system of interconnected computer networks.
- The World Wide Web is a service that operates over the Internet.
- Internet services include email, the Web, instant messaging, video communication, file sharing, online learning, e-commerce and social networking.
- A search engine helps users find information on the Web.
- A web browser is software used to access and display web pages.
- Google Search and Bing are examples of search engines.
- Chrome, Firefox, Edge, Safari and Opera are examples of web browsers.
- A URL identifies the location of a web resource, while a search query is used to find relevant information.
- Users should verify online information and follow safe, responsible Internet practices.
12. Evaluation Questions
- Define the Internet.
- Differentiate between the Internet and the World Wide Web.
- List five Internet services and state one use of each.
- What is a search engine? Give three examples.
- What is a web browser? Give three examples.
- State four functions of a web browser.
- Differentiate between a search engine and a web browser.
- What is a URL?
- State three benefits and three challenges of using the Internet.
- Mention four practices that promote safe and responsible Internet use.
13. Assignment
- Explain six Internet services and give one example of each.
- Draw a table containing four search engines and four web browsers.
- Explain five differences between a search engine and a web browser.
- Write five rules for using the Internet safely and responsibly.
14. Interactive Revision Quiz
Choose one answer for each question, then click Submit Quiz to see your score. Answer all questions before submitting.
CMPNOTE: Free Digital Technologies learning resources for Nigerian secondary school students and teachers.
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