Computer applications trainer

The invention of this disclosure comprises a system of visually displaying digital information and various digital computer functions. The apparatus of this invention is a training and display device which comprises: a plurality of switches and a plurality of terminals which are mounted to a sheet, a multiplicity of registers which are connected to the switches and terminals, a multiplicity of adders which are connected to the registers, a plurality of light bulbs which are connected to the registers and mounted on the surface of the sheet, a power supply, and apparatus for selectively lighting the light bulbs to display various numerical and computer functions. Hence specific computer operations may be simulated, and what information is stored in that particular portion of memory may be displayed to a trainee.