Roland DXY 100R X-Y Plotter

The Roland DXY 100R X-Y Plotter is a computer-controlled plotter used for plotting data points on a graph. It was developed by Roland Corporation in the 1980s and was used by many universities, research laboratories, and engineering firms. The plotter works by connecting to a computer and plotting data points on a graph. It has a variety of features, including a built-in pen holder, adjustable speed and pressure settings, and a variety of pen types. It also has a built-in memory for storing data points and can be used to plot multiple graphs at once. The DXY 100R is a reliable and accurate plotting device that is still used today.