The function and significance of POS machine: First, enterprise management needs a lot of information and data; 1. As the manager of supermarkets, restaurants and monopoly chains, it is necessary to carry out all-round refined management of the purchasing, inventory and sales (retail and wholesale) customer information of the whole enterprise; Refined management must be supported by data reports; 2. Need to make decisions based on data such as passenger flow and sales; Provide intelligent decision support; 3. In addition, the business process of the enterprise needs relevant departments to provide information and data reports in order to better carry out business; 4. Quickly and accurately realize the cashier process; And the shopping experience can be improved; Can provide accurate data for analysis; Second, the role of POS system; POS system can improve the operation efficiency of stores, reduce the operation cost of enterprises, increase the shopping experience, and finally bring profits to enterprises; POS system is an information management scheme for retailers through the cooperation of IT hardware and software developers, and the whole POS system intelligently manages information for retail enterprises. For example, we need to level a mountain. In the past, we used to dig by manpower and then carry the soil away, which was slow and consumed a lot of manpower. Pay a high price; But with the progress of science, we can directly level a mountain with an excavator. We only need this machine and master its usage, so we can achieve the goal of fast and low cost. In the past, we needed a lot of manpower, material resources and financial resources to collect, analyze, sort out, store and query the data we needed, but the POS system platform can intelligently and automatically manage the information we needed, and the effect is more accurate and comprehensive than manual data management. Higher efficiency and lower cost; The second function of POS system is that POS foreground can be completed quickly and accurately; Enhance the shopping experience and improve customer loyalty; Thirdly, the POS system puts forward all-round solutions according to the different needs of different industries.