Summary

	In this topic, different data forms such as text, audio, images are discussed.
	Text can have one of plain, formatted and hypertext representations.
	Plain text uses ASCII character set. Hypertext is used to link several pages together as used in web pages.
	HTML and XML are examples of hypertext formats.
	Images can be binary, gray or color types.
	LUT is used to convert between different color images.
	The different types of image standards are given.
	The sound representation and how the Nyquist theorem is used to sample this sound signal are discussed.
	MIDI as a computer synthesizer system is given.