Images can be stored in many formats. Two fundamental types of images are vector and bitmap. Vector images are stored as a sequence of drawing instructions. Bitmap images are stored as a mosaic matrix of picture elements. Vector Images Vector images define an image as a set of instructions composed of graphic objects.
Vector graphics are well suited to computer handling because they can be mathematically manipulated.
This enables individual elements to be scaled and stretched. A vector graphic will always reproduce at the optimum resolution for an output device and will maintain a consistent size when reproduced. Original vector images are created in application programs like PhotoShop. Vector images can generally be translated into bitmaps. That is essentially what happens when a vector image is displayed on a conventional computer screen.