internet.pptx internet introduction for s
- 1. Internet, Browser, and URL Understanding the Basics
- 2. What is the Internet? Definition: The Internet is a network that connects millions of devices around the world, allowing us to share information, communicate, and access data. Key Points: It’s a system of interlinked computer networks. We use the Internet to access websites, send emails, watch videos, and more.
- 3. How Does the Internet Work? Data Transmission: Information travels over the Internet in small pieces called “packets.” Internet Service Providers (ISPs): Companies that connect you to the Internet (e.g., Comcast, Verizon). TCP/IP Protocols: Rules that allow different computers to communicate with each other. Analogy: Think of the Internet as a postal system that delivers information in pieces to reach your device.
- 4. What is a Web Browser? Definition: A web browser is a tool (software) that lets us view and interact with websites on the Internet. Popular Browsers: Google Chrome, Mozilla Firefox, Safari, Microsoft Edge. Browser Purpose: Browsers translate web addresses (URLs) into the content we see, like text, images, and videos.
- 5. Basic Features of a Web Browser Address Bar: Where you type in a website address (URL). Tabs: Allow you to open multiple pages in one window. Bookmarks: Save your favourite sites for quick access. Back and Forward Buttons: Let you navigate between pages. Private Browsing: A mode where the browser doesn’t save your history or cookies
- 6. Security Features in Web Browsers HTTPS: Shows that the website is secure, protecting your data. Warning Messages: Alerts about unsafe or suspicious websites. Pop-up Blockers: Prevent unwanted ads and pop- ups. Extensions/Add-ons: Small programs that add extra features, like ad blockers.
- 7. • What is a URL (Uniform Resource Locator)? – Definition: A URL is a web address that tells the browser where to go to find a specific webpage. – Components of a URL: • Protocol: Shows the type of connection, e.g., http or https. • Domain Name: The main name of the website, like www.example.com. • Path: Points to a specific page or file on the website. – Example: https://www.example.com/about
- 8. • URL Features for Safe Browsing – HTTP vs HTTPS: HTTPS is secure, while HTTP is not recommended for sensitive data. – Domain Name: Helps you identify legitimate websites; e.g., “example.com” – Tip for Beginners: Always check for “https” in URLs when entering sensitive information.
- 9. How Browsers and URLs Work Together Step 1: You type a URL in the browser’s address bar. Step 2: The browser translates the URL to find the web server. Step 3: The server sends the webpage data back to the browser. Step 4: The browser displays the webpage for you to see and interact with
- 10. Common Internet Services Accessed via Browsers Search Engines: Help you find information (e.g., Google, Bing). Social Media: Connect and share with others (e.g., Facebook, Twitter). Email Services: Send and receive messages (e.g., Gmail, Yahoo). Video Streaming: Watch movies and shows online (e.g., YouTube, Netflix)
- 11. What is a Search Engine? Definition: A search engine is a tool that helps you find information on the Internet by entering keywords or phrases. Popular Examples: Google, Bing, Yahoo, DuckDuckGo. Purpose: Provides quick access to millions of websites, images, videos, and other types of content. How it Works: You type in what you want to search, and the search engine shows you a list of relevant websites and resources.
- 12. Features of Search Engines Search Bar: Type keywords, questions, or phrases here to search. Search Results: Links to websites, images, videos, news, etc., related to your search. Filters: Options to narrow down results by images, videos, news, maps, and more. Suggested Searches: Related searches or “People also ask” sections to help you find more information. Safe Browsing Features: Some search engines have settings to filter out inappropriate content (e.g., SafeSearch). Tip for Beginners: Start with specific keywords or phrases to get the best results