An avatar is an image or representation of a computer user in an online forum, chat room, virtual reality program or game. Avatars range from simple, abstract images to complex, personalized, three-dimensional models.
A joystick is a computer input device that is particularly useful for playing computer games. It consists of a handle that can be pointed in various directions. The computer can sense the direction in which the joystick is pointed, allowing it to control the movements of objects displayed on the computer screen.
