Plotter:A plotter is a graphics printer that draws images with ink pens. Plotters actually draw point-to-point lines directly from vector graphics files. The plotter was the first computer output device that could print graphics as well as accommodate full-size engineering and architectural drawings. There are two main types of plotters €“ drum and flatbed plotters. Drum plotters (also called roller plotters) spin the paperback and forth on a cylindrical drum while the ink pens move left and right. By combining these two directions, lines can be drawn in any direction. Flatbed plotters have a large horizontal surface on which the paper is placed. A traveling bar draws lines on the paper as it moves across the surface. Therefore, the term Plotter is best described as an output device to produce drawings and graphics.