What kind of hardware is used in the games?: The early models were all programmed at Rockwell Microelectronics Division using modified MOS-FET (Field Effect Transistor) handheld calculator chips. Basically a calculator chip was modified to make it output the necessary signals to drive the game display appropriately. Part of the reason that the little blips on these games are dashes is becuase they are basically the little segments of the number 8 on a calculator display.