Graphic Tablet, Mouse, Digital Camera, Scanner
Graphics tablets work by enabling you to hand-draw images and graphics on a screen just like the way one uses pencil on paper. It consists of a flat surface and comes with a stylus that acts as the pen. Though there are different types of graphic tablets, most of them use electromagnetic induction and optical technologies to create a graphic user interface that is relatively easy to use.
A computer mouse is a device used to point and click on icons, menus, command buttons on a computer's Graphical user interface. The GUI is found on current applications and programs that the user is navigating.
A camera that stores images digitally rather than recording them on film. Once a picture has been taken, it can be downloaded to a computer system, and then manipulated with a graphics system and printed. Unlike film photographs, which have an almost infinite resolution, digital photos are limited by the amount of memory in the camera, the optical resolution of the converting mechanism, and, finally, by the resolution of the final output device.
A scanner is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display. Scanners come in hand-held, feed-in, and flatbed types and for scanning black-and-white only, or color. Very high resolution scanners are used for scanning for high-resolution printing, but lower resolution scanners are adequate for capturing images for computer display. Scanners usually come with software, such as Adobe's Photoshop product, that lets you resize and otherwise modify a captured image.