What is the World Wide Web (www) © EIT, Author Gay Robertson, 2017

What is the World Wide Web … The World Wide Web is a collection of web sites you can access through the internet Web sites are related web pages that show multi-media (text, graphics, sound and motion) Web sites written in HTML language are available on the Internet These are known as Web sites on the World Wide Web The www is NOT the Internet

The www is NOT the Internet Navigate on the WWW … Use ‘hyperlinks’ to jump from webpage to webpage or open eg a video Web pages on the www are accessible when you key in a URL (or web address) When you view a web page, it is being sent to you by a server The www is NOT the Internet

Server serves up the pages … A server is a powerful computer permanently connected to the Internet It ‘serves or sends’ web pages and other files to clients A user (you and your computer) are known as a client

www is user friendly … Browsing or Surfing The world wide web, the graphical portion of the Internet, is the most popular part of the Internet by far Navigating through pages of information based on what interests you at that particular moment is commonly known as Browsing or Surfing

It’s also called a web address How do I get to a web page? Key a URL A WHAT?? It’s also called a web address

Web address … A web address has a technical name – it is called a URL Uniform resource locator A web address looks like this Let’s break down the URL or web address …. to show how it follows Standard User Protocol

Standard User Protocol … The standard or set of rules that manages data transfer between computers It is the communicator that enables computers to understand and work together If you don’t follow the rules data cannot transfer So the URL must be correctly set up and keyed?

http … http:// ‘hypertext’ transfer protocol (allows the transfer of hypertext files from one computer to another computer across the World Wide Web) Hypertext files are written in HTML language

www… www Says this is a page on the World Wide Web containing text, graphics, video and sound, which uses hyperlinks to jump from page to page

xxx.co.nz … xxx.co.nz is the Domain name of the owner of the web address (eit), the company or organisation type (ac), the country (nz) The USA doesn’t identify country eg google.com Many different organisation types eg .ac is for academic, .co is for company, .govt is for Government

Where do I key a web address … In your browser, in the address bar

So how does that go? The client on a computer connects using an ISP Uses web browser software Goes to www address to view web pages Uses a search engine to find something Connects to a server Web page is downloaded from server to client

Revision from NZCC2 Using a Web browser

What is a Web browser … A web browser is an end-user program that you need to use to view web pages and ‘browse’ websites which are made up of multiple web pages Google Chrome, Internet Explorer, Safari, FireFox, Android (Dolphin) Browser are the most popular browsers

Address Bar and Toolbar

Add to Favourites - Internet Explorer

Add to Favourites - Google Chrome

History - Internet Explorer

History - Google Chrome

Open a new tab - Internet Explorer

Open a new tab - Google Chrome

Close your web browser - Internet Explorer

Close your web browser - Google Chrome

Use Help features - Internet Explorer

Use Help features - Google Chrome

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