The World Wide Web is one of the protocols that lets you link to many
sites on the Internet. The basic unit is the page, such as the page you
are now reading. A page can be one or many screens as it
displays on your monitor.
Within the page are links to related pages and
other web sites. This system of embedding links in the text on a page is
called hypertext. The links are distinctive, and vary depending on your
browser. With most graphical browsers, links are underlined and appear
in a contrasting color.
Text browsers may number the links or show them
in bold text to contrast them or in reverse colors when selected.
You can select a link in a text browser either by typing the number of the
link or by moving the up and down arrow keys to select the link. Once
selected, either press Enter or the right arrow to connect to the link.
This page includes several links in contrasting colors or type. These
are hypertext links to other pages, and you can switch to the linked
page by clicking on or selecting the link. Try it.
![[graphic link]](http://www.walthowe.com/navnet/images/qmark.gif)
You will also see buttons and pictures used for links. With a graphical
browser, there will often be a blue or magenta border around the graphic
to show you it is a link. If you are using a text-only browser, you
won't see the picture, but you will usually see an [image] tag or an
alternate name.
The Web was invented by Tim Berners-Lee and others at the European
Laboratory
for Particle Physics (CERN) in Switzerland. It was
originally for text links only, but as it was further developed,
multimedia links were added, too. Now, you can see pictures,
listen to audio links, and see video links, if your computer and
software are set up for them. With the addition of sound and graphics
and fast modems to carry the large sound and graphics files, the Web
soon became the most popular way
of linking to resources on the Internet, replacing
gopher, which was invented
at the University of Minnesota.
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