plotters

noun
  1. 1

    A person who plots.

  2. 2

    An output device that draws graphs and other pictorial images on paper, sometimes using attached pens.

  3. 3

    An instrument used to mark or find the position of a vessel on a chart.

Source: https://en.wiktionary.org/wiki/plotter, https://en.wiktionary.org/wiki/plotters