A bitmap image is made of tiny little blocks of colour called pixcels. Up close, they are just that, blocks of colour. When zoomed out, the blocks of colour will begin to create an image. The downside of using these images though is that when blown up, the detail can be really bad. The bigger you want the image, the worse quality it will be. The upside though, is that these images can be very detailed and used to great lengths in photoshop and such image editing software. A vector image is created by mathematical equations. These images never lose detail and can go to any size imaginable, while retaining this level of detail. The downfall however, is that these images aren’t very life like and are very simplistic.