초록 ▼

To improve reliability of a POS (point of sales) terminal device, an internal memory umit is further provided in addition to two external memory units having PLU (price look-up) files. Therefore, even if two external memory units develop trouble simultaneously, data (price, name, linked commodity se

To improve reliability of a POS (point of sales) terminal device, an internal memory umit is further provided in addition to two external memory units having PLU (price look-up) files. Therefore, even if two external memory units develop trouble simultaneously, data (price, name, linked commodity section data and so on) related to a sold commodity are all read from the internal memory unit, whenever a bar code of the commodity is read through a scanner, before implementing registration processing. The data related to the commodities in the internal memory unit are updated whenever registration processing is implemented in dependence upon the normal external memory unit.

대표청구항 ▼

A point of sales terminal device comprising: (a) a file for sorting commodity identification data and data related to commodities corresponding to the commodity identification data for each commodity; (b) reading means for reading commodity identification data attached to commodities; (c) registrati

A point of sales terminal device comprising: (a) a file for sorting commodity identification data and data related to commodities corresponding to the commodity identification data for each commodity; (b) reading means for reading commodity identification data attached to commodities; (c) registration processing means for registration processing sold commodities on the basis of data related to the commodities read from said file, whenever commodity identification data are read through said reading means; (d) storing means for storing commodity identification data and data related to commodities corresponding to the commodity identification data; (e) discriminating means for discriminating whether said file is abnormal or not whenever said reading means reads commodity identification data; and (f) control means for allowing said storing means to store data related to read commodities and said registration processing means to implement registration processing, whenever said discriminating means discriminates that said file is normal; and for retrieving data related to the read commodities in said storing means on the basis of commodity identification data read by said reading means and allowing said registration processing means to implement registration processing on the basis of the data related to commodities and read from said storing means, when said discriminating means discriminates that said file is abnormal.