Animated GIF - A format for saving graphics

Animated GIF - A format for saving graphics that allows several images to be saved at once and then displayed by web browsers one after another - so creating the illusion of movement (as with cartoons). It was one of the first forms of movement used on the web, and is still popular today. Used mostly in banner ads, its popularity stems from the fact that each image can be small (in data-transmission terms), and so the images download and play quickly.