Saturday, April 18, 2009

Saturday, April 11, 2009

Overview

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History


The World Wide Web was "created" in 1990 by CERN engineer, Tim Berners-Lee.[1] On 30 April 1993, CERN announced that the World Wide Web would be free to anyone.[2]
Before the introduction of HTML and HTTP other protocols such as file transfer protocol and the gopher protocol were used to retrieve individual files from a server. These protocols offer a simple directory structure which the user navigates and chooses files to download. Documents were most often presented as plain text files without formatting or were encoded in word processor formats.

Website


A website (or "web site") is a collection of related web pages, images, videos or other digital assets that are hosted on one web server, usually accessible via the Internet.
A web page is a document, typically written in (X)HTML, that is almost always accessible via HTTP, a protocol that transfers information from the web server to display in the user's web browser.
All publicly accessible websites are seen collectively as constituting the "World Wide Web".
The pages of a website can usually be accessed from a common root URL called the homepage, and usually reside on the same physical server. The URLs of the pages organize them into a hierarchy, although the hyperlinks between them control how the reader perceives the overall structure and how the traffic flows between the different parts of the site.
Some websites require a subscription to access some or all of their content. Examples of subscription sites include many business sites, parts of many news sites, academic journal sites, gaming sites, message boards, Web-based e-mail, services, social networking websites, and sites providing real-time stock market data. Because they require authentication to view the content they are technically an Intranet site