1. World Wide Web 16 World Wide Web 16

2. World Wide Web 16 Everyone also talks about the Web But people don’t really understand how it works You need to know some basic concepts And be able to use some basic technical terms for things you use every day…

3. World Wide Web 16 Think of the Web as content on the Internet content That content include web pages plus their multimedia files, such as audio and video, as well as images etc Let’s start by reminding ourselves how it all began…

4. World Wide Web 16 The Internet has been carrying data well before the Web was invented… 19501960 1970198019902000 1940 2010 Net Born 1969 Net Born 1969 Web Born 1989 Web Born 1989

5. World Wide Web 16 B3i

6. World Wide Web 16 The Web is a collection of hyperlinked ‘resources’ Could be web pages But could also be files – PDF, mp3, Word etc

7. World Wide Web 16 Browser is the software we use to view webpages You might use Chrome But there are LOTS of different products available

8. World Wide Web 16 Client SideServer Side The Internet DatabaseServers Client Devices Also recall what’s happening behind the scenes…

9. World Wide Web 16 Client SideServer Side The Internet DatabaseServers Client Devices Also recall what’s happening behind the scenes…

10. World Wide Web 16 Browser Hyperlinks So you need to know about these key concepts… Web Server Client Devices

11. World Wide Web 16 Are the devices we use to access websites Could be a tablet, or smartphone, or laptop or desktop PC Client Devices

12. World Wide Web 16 Web pages are accessed through browsers These are software applications that allow a user to enter a web address and view the webpage Your browser reads the HTML code and displays the page Browser

13. World Wide Web 16 The Web works because of hyperlinks They connect web pages together When a hyperlink is clicked, a user is taken to another page on the site, or taken to another website Hyperlinks

14. World Wide Web 16 Websites are stored on web servers When you access a webpage through a browser, the page is temporarily downloaded onto your computer It is the web server’s job to deliver (or ‘serve’) the web page requested Web Server

15. World Wide Web 16 If you haven’t already seen it, then watch this video that shows how the Web works… http://www.youtube.co m/watch?v=WwyJGzZ mBe8

16. World Wide Web 16 World Wide Web 16

17. World Wide Web 16 World Wide Web 16