Judson Rosebush, "Letter Field," April 22, 1978, Syracuse University. Calcomp plotter computer output with liquid inks on rag paper, 15.25 x 21 inches. This image was created using an early version of what would Digital Effects' Vision software, in APL and Fortran on an IBM 370/158. A database of the Souvenir font; random number generation, a statistical basis to determine letter size, color, and position; and a hidden line algorithm all combine to calculate this scan line raster image (albeit drawn by a pen and ink plotter).