2.2 Text Representation

There are three types of text that produce pages of documents (Fred Halsall, (2001)):

Unformatted (plain) text:

			This text consists of fixed-size characters and a limited character set. The American Standard
			Code for Information Interchange (ASCII) is an example of the character set used to represent
			plain text.
			Teletext is an application example of this plain text. It is used to send broadcast information to a
			standard television set.
			The ASCII character set is not enough for international use. The Unicode character set uses 16
			bits per character.

Formatted text:

			The formatted text is used to produce papers, books, and journals. The characters can have
			different size, and style (bold, italic, and underline).

Hypertext:

			It enables to product an integrated set of documents that have defined linkages between them.
			Each document is called a page and the defined linkages between the pages are called hyperlinks.

2.2 Text Representation

			The most common example of hypertext is HyperText Markup Language (HTML). HTML
			commands are given within a pair of tags (<>). Extensible Markup Language (XML) is another
			hypertext language. XML is designed to transport and store data.