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Many people believe that the World Wide Web and the Internet are the same thing, but this is
                  not correct. In fact, these are two different things. The Web is a service (a system for accessing
                  information) that is supported by the Internet, a system of interconnected networks.

                  Information on the Web is stored in the form of Web pages. A Web page is a hypertext document.
                  A collection of related web pages is called website. Websites are housed on Web servers. A
                  Web server is an Internet host computer that often store thousands of individual Web pages.
                  Copying a Web page onto a server is called publishing the Web page. This process is also called
                  as posting or uploading.
                      HOW THE WEB WORKS?


                  Web documents can be linked together because they are created in a format known as hypertext.
                  Hypertext  system provides an easy way to manage large collections of data, which can include text
                  files, pictures, sounds, movies and more. To support hypertext documents, the Web uses a special
                  protocol, called the Hypertext Transfer Protocol (HTTP). The language allows a document’s
                  author to embed hypertext links—also called hyperlinks or just links in the document. HTTP and
                  hypertext links are the foundations of the World Wide Web.
                      USING WEB BROWSER

                  For several years, the Web remained a tool used by scientific researchers. But in
                  1993, developers at the  National  Center for  Supercomputing  Applications

                  (NCSA)  created  Mosaic,  a  point  and  click Web  browser.  A  Web browser  is a
                  software application designed to find hypertext documents on the Web and then
                  open the documents on the user’s computer. Commonly used web browsers are
                  Google Chrome, Internet Explorer, Opera, Mozilla Firefox, etc.
                  Launching Your Browser

                  You may need to connect to the Internet before launching the browser. Once you
                  have established a connection, launch your browser by clicking on the Firefox Web
                                                                                                           Launching a
                  Browser icon at the top-left of the desktop.                                             Web browser
                      USING URLs

                  You have learnt in previous class that every Web page has a unique address, called a Uniform
                  Resource Locator, or URL. URLs are the key to navigating the Web. When you provide a URL to
                  the browser, the browser finds that URL’s Web page and then transfers the Web page to your PC.
                  The content of the web page then appears in the Web browser window. You can specify a URL
                  in several ways, but two methods are commonly used:
                  Using Address Bar

                  Step 1   Type the URL in the browser’s Address bar.
                  Step 2   Press the Enter key from the keyboard.
                                                                                                Using Address Bar
                  Suppose, you want to visit the Website of Google. To do this, you
                  can type www.google.com in the Address bar and then press Enter key. The home page of
                  Google appears in the browser window.


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