A plotter is a device that draws pictures on paper based on computer commands by using a pen that can produce continuous lines, unlike printers which simulate lines with dots. Plotters have pens mounted on carriages that move horizontally, vertically, and in other directions to trace graphs under the control of graph plotting programs, allowing the drawing of various graphs in different colors using multiple pens. Plotters have the advantage of producing smooth lines but are limited in the types of images they can generate compared to printers.

4. Limitations
Advantages

8. .

14. A device that draws pictures on paper based on commands from
a computer. Plotters differ from printers in that they draw lines using a
pen. As a result, they can produce continuous lines, whereas printers can
only simulate lines by printing a closely spaced series of dots. Multicolor
plotters use different-colored pens to draw different colors.
Example:-
In this a pen is mounted on a cartirage
which can moves horizontally or
vertically or leftwards or rightwards. A
graph plotting program is used to
move the pen to trace he desired
graph.
In this a pen capable of linear motion is
mounted on a carriage. The drum can
rotate I either clockwise or anti-
clockwise direction under the control
of plotting instruction given by
computer. The pen can move in either
right, left , up & down. The movements
of the pen and drum are controlled by
graph plotting program. The program
can draw various graphs.