The smart tablet POS system has the characteristics of information management and has attracted traditional retailers, restaurants, hypermarkets, chain stores, etc., but it only takes 5 to 6 years to replace the old POS system. Therefore, POS has not seen explosive growth in the traditional application market. However, with the emergence of more and more transaction types, coupled with the continuous development and update of system accessories and software, and the addition of wireless transmission functions such as Bluetooth, smart tablet POS has developed more industry-based application models and integrated development . Types of. Or it's an independent all-in-one design that focuses on the appearance of the store. These R&D directions have opened up new application markets and product categories for POS. For example, unattended counters such as multimedia listening machines, self-service ticket machines, and self-service photo printers developed by the Information Service S…