Abstract: The present invention allows a mobile terminal which has transmitted a display application command to control a display and thereby lends the display application right to the mobile terminal when a display application command is included in a transmission command transmitted from the mobile terminal obtained via a wireless module by an apparatus such as POS terminal or the like which is provided with the wireless module for enabling transmission and reception of information via a radio link to and from the mobile terminal in order to display various information pieces on the display. Thereby, a user of the mobile terminal can display the desired information on the display of the apparatus such as POS terminal and a shop having installed such apparatus therein can enhance the customer gathering capability.

Abstract: The present invention permits a data related to a destination used in an order reception operation of a goods delivery service to be acquired from an address information stored in an address information file retained in a portable electronic terminal, thus leading to utilization of the address information stored in the address information file as the data related to the destination used in the order reception operation of the goods delivery service. Thereby, a manual input of addresses, etc., in a product sales data processing system can be saved. Accordingly, a store with installation of the sales data processing system will achieve shortening of operation time, improvement of work efficiency, and reduction of mistakes, and a customer who owns the portable electronic terminal will be able to enjoy enhancement of the convenience and serviceability.

Abstract: The present invention allows a mobile terminal which has transmitted a display application command to control a display and thereby lends the display application right to the mobile terminal when a display application command is included in a transmission command transmitted from the mobile terminal obtained via a wireless module by an apparatus such as POS terminal or the like which is provided with the wireless module for enabling transmission and reception of information via a radio link to and from the mobile terminal in order to display various information pieces on the display. Thereby, a user of the mobile terminal can display the desired information on the display of the apparatus such as POS terminal and a shop having installed such apparatus therein can enhance the customer gathering capability.

Abstract: The present invention permits a data related to a destination used in an order reception operation of a goods delivery service to be acquired from an address information stored in an address information file retained in a portable electronic terminal, thus leading to utilization of the address information stored in the address information file as the data related to the destination used in the order reception operation of the goods delivery service. Thereby, a manual input of addresses, etc., in a product sales data processing system can be saved. Accordingly, a store with installation of the sales data processing system will achieve shortening of operation time, improvement of work efficiency, and reduction of mistakes, and a customer who owns the portable electronic terminal will be able to enjoy enhancement of the convenience and serviceability.