(From wikipedia)There are two main type of image files: Raster and Vector. Raster images are more common in general such as jpg, gif, png, and are widely used on the web. Vector graphics are common for images that will be applied to a physical product. Also used in CAD, engineering, and 3D graphics which we do not provide information nor services for. When using a raster program you paint an image and it's similar to dipping a brush in paint and painting. You can blend colors to soften the transition from one color to another. When using a vector program you draw the outline of shapes: e.g. an eye shape, a nose shape, a lip shape. These shapes display one single color each.
In 2d design assignment i tried number of applications.they are listed below.