Patent ID: 7344070
Filing Date: 2008-03-18
Classification: G06Q,G07G

Abstract:
1. A POS system comprising an input device for entering transaction information including purchased product information; a display device including a customer display for displaying transaction information and other display data; a printing apparatus for printing transaction information and other print data; a POS terminal for acquiring data from the input device, calculating a purchase total, and generating and outputting at least a part of the display data and a part of the print data; at least one function-adding apparatus for providing a new functional application to the POS terminal; and an input/output control apparatus connected to the POS terminal, the function-adding apparatus, and to at least one device selected from the group consisting of the input device, display device, and printing apparatus, for providing data communication between the devices connected thereto; wherein the input/output control apparatus comprises: wherein the connected devices include one or more input ports and wherein said input/output control apparatus further comprises an identification criteria storage unit for storing identification criteria specific to each input port or identification criteria common to a plurality of input ports; and a data storage unit for storing data received from the input ports.