Why is Illustrator a powerful tool?

 Computer graphics fall into two main categories, bitmap graphics and vector graphics.
 Adobe Illustrator is a vector based software package. What this means for you is that unlike bitmap images, a vector based piece of artwork can be scaled to any size and printed on any output device at any resolution without losing its detail or clarity. Vector graphics are the best choice for type, and bold graphics that need to maintain their crispness at various scales. (for e.g. posters etc)
 In Adobe Illustrator you "draw" objects. Objects are simply the points, lines, shapes and paths that you create on the page.
 What makes Illustrator powerful is its ability to manipulate any object as a graphic element
• The Illustrator work area
 The Art board
 Scratch area
 non imageable area
 imageable area
 the tool box
 pallets