Popularization of bar code knowledge of POS cash registers

A barcode is an identifiable information identifier. It is a graphic composed of black bars and spaces of different widths arranged according to certain coding rules. It is an effective carrier for various information such as goods, dates, banking systems, and postal management. A generic commodity barcode typically consists of a prefix portion, a manufacturer code, a commodity code, and a check code. The prefix code in the product barcode is the code used to identify the country or region.

Regarding the design of the bar code of the POS cash register system, the design of the POS system using the bar code is not in principle different from the design of the general POS system. The difference between the two is that the former uses the barcode as the "front-end code" and automatically reads the barcode through the barcode reader, avoiding errors when manually inputting the "front-end code", and improving the input speed and work efficiency, especially for the supermarket. The benefits are more prominent, which can greatly reduce the waiting time for customers to settle their purchases.

The interface between the barcode reader and the cash register and computer is usually divided into keyboard simulation input and serial input. When programming an application, programming is not difficult as long as you notice what interface is used. Therefore, commercial enterprises that have realized computer management should not lose the opportunity to promote the application of bar code management, and for commercial enterprises that do not implement computer management, bar code management can be considered together when designing computer management information systems.

Application and commercial POS cash register barcodes not only improve input speed, but also have high reliability, large amount of information collection, flexible and practical, and low cost. It is the preferred information carrier in supermarkets, retail, convenience stores, logistics and other fields. .

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