incremental plotter

Definitions

Computing

  • noun a graphical output device that can only move in small steps, with input data representing the difference between present position and the position required, so drawing lines and curves as a series of short straight lines

Publishing

  • noun a plotter which receives positional data as increments to its current position rather than separate coordinates
http://www.dictionarycentral.com/definition/incremental-plotter.html