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WORLD WIDE WEB
The World Wide Web (WWW) is a large information system where you can surf
and get information. It consists of several public and private websites which may
be interlinked and accessible over the Internet worldwide. WWW is also known as
Web. 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 a website. Websites
are hosted on Web servers. A Web server is an Internet host computer that often
stores thousands of individual Web pages. Posting a Web page onto a server is
called publishing the Web page. This process is also called uploading.
HOW DOES THE WEB WORK?
Web documents can be linked together because they are created in a format
known as hypertext. Hypertext 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). It 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, Microsoft Edge, Mozilla Firefox, Safari etc.
Launching Your Browser
3
You need to connect to the Internet before launching the
browser. Once you have established a connection, launch
your browser by following the given steps:
Step 1: Click on search box.
Step 2: Type the web browser name like microsoft edge.
Step 3: Click on Microsoft Edge. The Microsoft Edge
1 2
window will appear.
Launching a Web browser
Internet and E-Mail 63

