plotter

[plot-er]
noun
1.
a person or thing that plots.
2.
an instrument, as a protractor, for plotting lines and measuring angles on a chart.
3.
Computers. an output device that produces a graphical representation by drawing on paper, as with one or more attached pens.

Origin:
1580–90; plot + -er1

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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FOLDOC
Computing Dictionary

plotter definition

hardware
A device that uses one or more pens that can be raised, lowered and moved over the printing media to draw graphics or text.
The heart of the plotter is the printer head assembly, consisting of a horizontal bar and, attached to it, the head assembly holding the pen in use. The pen can be positioned horizontally by moving the pen assembly along the bar. Vertical positioning is achieved by either moving the bar (stationary page plotter) or the paper (rolling page plotter). Combinations of horizontal and vertical movement are used to draw arbitrary lines and curves in a single action, in contrast to printers which usually scan horizontally across the page.
Colour plots can be made by using more than one pen. Older plotters required a separate pen for each colour and the pens had to be changed by hand. Modern colour plotters usually use only four pens (cyan, magenta, yellow, and black, see CMYK) and need no human intervention to change them.
Monochromatic plotters have been largely phased out by laser printers except when large paper size is needed, e.g. in CAD.
(1996-01-10)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
The machine uses a plotter that pushes up thousands of small pins that can be raised in any pattern and then locked into place.
The boundary dimensions must not exceed those allowed by the plotter.
Included in the attachment are the course parameters, teaching modules, and progress plotter.
The maps can be downloaded and printed on your plotter or printer.
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