Since computer monitors and different operating systems may have different color palettes, an image originating on one system may not look the same when viewed on another system. The computer handles this problem with dithering, which creates additional colors and shades by interspersing pixels of different colors to simulate the original colors. Dithering can be used to create patterns, backgrounds, fills, and shading, as well as, for creating halftones for printing. ‘’Anti-aliasing’’ techniques use dithering to make jagged lines appear smoother on a screen. It is also used when creating blends to eliminated banding.