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A Web browser is an electronic window on the Web. It is simply a software program or client application which retreives Web documents from any Web server connected to the Internet and displays them on your screen. The first browser, called Mosaic, was developed at the National Center for Supercomputing Applications by a college student named Marc Andreesson. The year was 1993. Very few people anticipated the impact and explosive growth that followed. Although many different browsers are available, Microsoft Explorer and Netscape Navigator are the main contenders. The competition between the two companies has lead to continuing improvements in browser software. The key to the functionality of browsers is hypertext. Documents call other documents by way of active links hidden behind text and graphic elements. Here’s how browsers work... When you click on underlined text like this, the hidden code of the document points to located somewhere on the Internet. For example, the menu bar you have been using in this course of this program has four hypertext links. If you roll your cursor over the word M E N U you can see the URL of the linked page in the status bar. And when you click on M E N U that URL is downloaded for display. A graphic can also function as a type text link. For example, an image like this. could take you to far away Web sites or to the next page.

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