There are several Data-Types available to document authors for creating and storing documents. Some are Binary , while others are Text -based. The Web is a largely-successful marriage of a whole host of information types. Paramount among those are graphics, animation, audio and text.
Text is text, while graphics, animations and audio are binary.
Text and binary have their respective advantages and disadvantages, and are best used in applications for which they are appropriate. Text is becoming increasingly more important, since it is accessible, flexible and low-cost. The Web is largely a congregation of trillions of lines of text. Web authors and developers have prospered, since barriers to entry are low. Anyone can create Web pages, or develop simple applications for the Web.