POS system, or point-of-sale information system, refers to a system that directly reads product sales information (such as product name, unit price, sales quantity, sales time, sales store, purchasing customer, etc.) through automatic reading equipment (such as cash register) when selling goods, and transmits it to relevant departments through communication networks and computer systems for analysis and processing to improve operating efficiency.
POS system was first used in the retail industry, and then gradually expanded to other service industries such as finance and hotels. The scope of using POS systems has also expanded from within the enterprise to the entire supply chain.
It has functions such as consumption, pre-authorization, and query of payment lists, and is mainly used by special merchants to accept bank card consumption.
