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About World Wide Web...

Started by sukishan, Jul 13, 2009, 01:14 PM

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What is the World Wide Web?
* The Web is a network of computers all over the world.
* All the computers in the Web can communicate with each other.
* All the computers use a communication protocol called HTTP.


How does the  WWW work?

* Web information is stored in documents called web pages. 
* Web pages are files stored on computers called web servers.
* Computers reading the web pages are called web clients.
* Web clients view the pages with a program called a web browser.
* Popular browsers are Internet Explorer and Firefox.


How does a Browser Fetch a Web Page?

* A browser fetches a page from a web server by a request.
* A request is a standard HTTP request containing a page address.
* An address may look like this:


How does a Browser Display a Web Page?

* All web pages contain instructions for display.
* The browser displays the page by reading these instructions.
* The most common display instructions are called HTML tags.
* HTML tags look like this <p>This is a paragraph.</p>.
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