Abstract: A point-of-sale system freely configurable with a plurality of peripheral input devices. The system includes a general purpose computer with an input port for receiving data. An electronic interface is coupled to the input port and readily connectable to the plurality of peripheral input devices for transmitting data from the plurality of peripheral input devices to the computer input port. The plurality of peripheral input devices can be selectively connected and disconnected from the electronic interface, the electronic interface maintaining a continuous dialogue with the computer during the connection and disconnection of the plurality of input devices.