Computer graphics Static exhibits included a display of early computer graphic input and output devices, examples of digital typography, the holographic animation "American Graph Fleeting" and "A Visualizer's Bestiary", a tableau of real-world objects that have vexed programmers' attempts to render them realistically. Dynamic exhibits included: "A Window full of Polygons" depicting the view of downtown Boston that visitors see from the gallery on a large pen-plotter that renders the buildings' silhouettes with changing colors and patterns; an interactive Koch snowflake fractal generator; and the first computer game SPACEWAR! running on a PDP-1 and (more reliably) on a PC.