Abstract: Communication with a computer through a gameport is provided in a fashion which provides an increased information bandwidth, e.g. for coupling three or more joysticks or other peripheral devices and/or a total of five or more buttons. In one embodiment, information from joysticks or other peripheral devices is provided to the synchronous serial digitized form over the 4 button lines. X-A and Y-A lines of the gameport are used for providing, to the external devices, timing information from which load and clock signals are generated to control output of information from the peripheral devices to complete.

Abstract: A switch joystick including a lever, a switch coupled to the lever and operative in response to deflection of the lever by a selectable amount from a neutral position along a predetermined coordinate axis, and means for adjusting the amount of deflection necessary to operate the switch.