Abstract: A device and method for operating a computer system without sight to explore and edit spatially portrayed data represented in a tactile format is described. Specifically, the system includes a work surface having a plurality of actuatable magnets located below the work surface. When a magnet is actuated, the magnetic field emitted from the magnet is detectable above the work surface. The presence or absence of magnetic fields above the work surface represents spatial data from the computer. The user receives the spatial data by moving a metallic implement along the work surface to detect the presence or absence of magnetic fields in various locations on the work surface. Specifically, the actuatable magnets are permanent magnets having linear actuators or servo motors for moving the magnet closer to the work surface, thereby actuating the magnet.