2.2. THE WORLD WIDE WEB (WWW)This is a public Internet-based hypertext system that allows you to check, with a browser, the pages accessible on websites.1. The basis of the Web: the hypertext system Hypertext is a communication system linking different elements together by (hyper) links: - Language for communicating between machines: Hyper Text Transfer Protocol (HTTP) sites are identified by their address web (URL: Uniform Resource Locator) this essentially depends on the domain name (e.g.: http://www.lost.com)(shortcut for IP address, e.g.:.com,.org,.edu,.fr,.de , .co.uk,.gov.fr,.tv, etc...) - Navigation language from one web page to another: it goes from one web page to another (written in HTML: Hyper Text Markup Language) by clicking on a hyperlink.2. Understanding web browsing: View a page/website =- Open a file from a remote computer (in general), from a given address (URL) or hyperlink.- View it on your own computer with appropriate software to interpret the source (the browser).3. Browsers, Web softwareThe Web browser is software designed for the World Wide Web. Technically, it is at least an HTTP client. There are many web browsers, for all kinds of hardware (personal computer, touchpad, mobile phones, etc.) and for different operating systems (GNU-Linux, Windows, Mac OS, iOS and Android). The most used currently are Google Chrome, Mozilla Firefox, Internet Explorer, Safari and Opera.4. How the WEB Browser WorksSearch engines, in the true sense of the term, are those that perform the search and indexing of web pages themselves without human intervention. Automatic indexing sites all include: - an update of a database - this database softwareThe...... middle of paper ......is a collection of documents available via the internet , linked together by links called hyperlinks. Web page which is the name commonly used for documents on the World Wide Web. Each page is marked by an address called the Uniform Resource Locator (URL). A website is a collection of web pages, often from the same author, particularly linked to each other. It is in a way the equivalent of a folder Hypertext links Web pages are linked together by hypertext links: these are portions of text or images on which the user can click to be directed to a another page. These are connections that connect the entire network of the World Wide Web. Search engine is a particular website that offers the user help in ferreting out documents in the vast World Wide Web. It searches this database to provide the user with a list of web pages where they might find information of interest...