What are the disadvantages of bitmap graphics and vector graphics?

bitmap is a raster image which is anything with lots of detail while a vector is an image that is made up of geometric shapes and therefore can be manipulated in ways in which is keeps its detail. raster images vary depending on resolution and can only be made bigger if they have a higher resolution while vectors can scale without regards to resolution as they are made of geometric primitives. Simple things use vector while more complete images are usually raster/bitmap.