| 摘要 |
To provide a POS system so designed that where a commodity whose the time of consumption has been passed was read, a warning message is displayed to an operator to call an attention to the operator. A POS system comprising: a bar code read means for reading a bar code attached to a sales commodity; a PLU storage means for storing commodity data such as commodity names of sales commodities and sales prices corresponding to the bar code; a display means for displaying commodity names and prices of sales commodities; a control means for getting access to the storage means when commodities are sold, specifying the commodities by the bar code of sales commodities, reading data relating to the commodity names of the commodities and the sales prices, displaying the commodity names and the prices of the commodities on the display means, and carrying out sales processing of the commodities; and a clock means, the control means recognizing that the sales commodity is a commodity subjected to management of the time of consumption on the basis of the bar code read by the bar code read means, comparing the time-of-consumption data included in the bar code with the present time from the clock means, and where the time-of-consumption data has passed the present time, displaying a warning thereof on the display means.
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