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Pen plotters print by moving a pen across the surface of a piece of paper. This means that plotters are restricted to line art, rather than raster graphics as with other printers.
Vector, pen plotters utilize various pens for the drawing of linear features on drawing media. Pen plotters can handle most plotting jobs, but they do not produce good results in area shading such as in the production of cholorpleth maps.
The points, lines and areas defining geographic features on a map are represented as an organized set of X, Y coordinates. These data drive pen plotters that can rapidly redraw the connections at a variety of colors, scales, ...
Plotter types include: laser, electrostatic, direct thermal and pen plotter. Finally, GIS storage systems include: optical disks, magnetic disks (such as a hard drive), floppy disks or magnetic tapes.
 See also: Image, Pen, Plotter, Vector, Mapping
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