A-level Computing/AQA/Paper 1/Fundamentals of data representation/Comparison between vector and bitmaps

This image illustrates the difference between bitmap and vector images. The bitmap image is composed of a fixed set of dots (pixels), while the, that will run on a mobile phone and a home console. What type should you use and why?

Answer:Vector, as it allows for scaling without distortion and retaining its file size. You would only need one image to use on all the different systems.

You want to take an image of a local cat stuck in a tree. What type should you use and why?

Answer:Bitmap as it is better for photographs.