The related text may be in the same document, a different document on the same computer, or a document on a computer located half-way around the world. In Figure 1 links are indicated by the bold and underlined text. For example, clicking on the link IOTAs by Mike Coovert will display Mike's IOTA column from the issue. As an analogy, consider an encyclopedia. The second defining characteristic is that Web documents often contain hypermedia where text, graphics, sound, and animation are incorporated in a single document.
Minimal documents contain only text.
While these documents may lack striking visual appeal, they are fairly quick to transfer. Powerful documents can be created by including media that enhance the substance and accessibility of the document. HTML allows you a number of advanced text-formatting features, such as hierarchical headings and bulleted lists, as well as the ability to include graphic images, sounds and animation. In order to access information on a particular document, you must know, and be able to tell the computer, where the document is located. A URL is a description of the location and type of document.