A hypertext link is a built-in reference to related information in an HTML document. Following a link in one document can produce text that contains another link or links to other documents or locations. One of the most popular features of the WWW is this built-in linking capability. Typically, a hypertext link is displayed by a browser in a color that is different from the text. Clicking, pointing or otherwise choosing the link takes the user to information related to that link.
The anchor tag in the HTML 2.0 specification is used to mark either the source or destination of a hypertext link. The attributes of the anchor tag define source or destination links. If the anchor tag is the source, it will use the HREF attribute, if it's the destination, it will use the NAME attribute.
For example: "<A HREF="URL">TITLE</A>"
This example shows the format of a hypertext link that points to a URL titled TITLE.