In the financial field, Pos is the abbreviation of point of sale, which refers to the sales terminal of a multifunctional terminal. It can be installed in special merchants of credit cards and acceptance outlets, and connected with computers to realize automatic transfer of electronic funds. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer, and is safe, fast and reliable to use.
The basic principle of POS system is to create the commodity data in a computer file, read the barcode on the commodity directly through the online structure of the computer cash register and the optical reading device on the cash register equipment (or directly input the code through the keyboard), and then display the commodity information immediately to speed up the cash register and correct it. The detailed information of each commodity sale (price, department, time period and customer level) is automatically recorded and then sent back to the computer by the online framework.
The role of POS
POS has the functions of pre-authorization, transfer and balance inquiry, and it is faster, safer and more reliable to use. The basic principle of POS system is to create commodity data in computer files, and through the online structure of computer cash register, directly read the barcode on the commodity or directly input the code through the optical reading device on the cash register equipment, the information of the commodity can be displayed immediately, thus speeding up the speed and correctness of cash register.
The POS machine reads the information in the cardholder's magnetic stripe on the bank card through the card reader, the POS machine operator inputs the transaction amount, and then the cardholder inputs the bank card password. The POS machine sends these information to the issuing bank's banking system through the UnionPay center to complete the online transaction, and gives the information of success or failure, and finally prints the corresponding bill.