In multimedia presentations, text can be combined with other media in a powerful way to present information and express moods.

 

It is also known as plaintext, this comprise of fixed sized characters from a limited character set. The character set is called ASCII table which is short for American Standard Code for Information Interchange and is one of the most widely used character sets. It basically consists of a table where each character is represented by a unique 7-bit binary code. The characters include a to z, A to Z, 0 to 9, and other punctuation characters like parenthesis, ampersand, single and double quotes, mathematical operators, etc. All the characters are of the same height. In addition, the ASCII character set also includes a number of control characters. These include BS (backspace), LF (linefeed), CR (carriage return), SP (space), DEL (delete), ESC (escape), FF (form feed) and others.

                       Formatted text are those where apart from the actual alphanumeric characters, other control characters are used to change the appearance of the characters, e.g. bold, underline, italics, varying shapes, sizes, and colors etc., Most text processing software use such formatting options to change text appearance. It is also extensively used in the publishing sector for the preparation of papers, books, magazines, journals, and so on.

           The term Hypertext is used to mean certain extra capabilities imparted to normal or standard text. Like normal text, a hypertext document can be used to reconstruct knowledge through sequential reading but additionally it can be used to link multiple documents in such a way that the user can navigate non-sequentially from one document to the other for cross-references. These links are called hyperlinks.

Node or Anchor:

 

The anchor is the actual visual element (text) which provides an entry point to another document. In most cases the appearance of the text is changed from the surrounding text to designate a hypertext, e.g. by default it is colored blue with an underline. Moreover the mouse pointer changes to a finger icon when placed over a hypertext. The user usually clicks over the hypertext in order to activate it and open a new document in the document viewer. In some cases instead of text an anchor can be an image, a video or some other non-textual element (hypermedia).