What does bit-mapped graphics mean?

bit-mapped graphics meaning in Law Dictionary

photos regarding the bit map of a computer. They can't be altered without making distrotion or jagged edges.

bit-mapped graphics meaning in Business Dictionary

Black and white and color layouts (like those made by illustration or 'paint' programs) made up of bit-maps. Unlike vector layouts, bit-mapped graphics typically cannot be increased or decreased without producing jagged outlines (aliasing) or distorted photos.