POS principle

1.POS machine principle - Introduction POS, the full name of Point Of Sales, Chinese meaning is a sales point information management system, is a terminal reader equipped with bar code or OCR code, cash or bargaining quota cashier function. The main task of POS machines is to provide data services and management functions for goods and media transactions, and to perform non-cash settlements. POS is a multi-functional terminal. It can be installed in the special merchants of credit cards and acceptance networks and computer networks. It can realize automatic transfer of electronic funds. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer. It is safe, fast and reliable to use.

2. Principles of POS Machines - Equipment Components The complete set of POS machines requires a set of payment software in addition to the hardware. Software includes functions such as entry, sales, statistics, printing, cash box control, etc. It is actually a small-scale database application software for a specific purpose. Outside POS:

Guest display is divided into LED and VFD. This part is mainly for customers to see the amount received, change amount.

According to the printer - the main function is to print receipt printers. There are needle printers and thermal printers.

Card reader - The equipment for brushing magnetic cards is mainly used for membership points and store members' stored value.

Cash box - Equipment for loading money. The printer automatically opens the cash box after the ticket is finished.

Scanning equipment - equipment scanning bar code, scanning guns and laser platform from the point of view, scanning transmitter is divided into two kinds of infrared and laser, infrared called CCD. It can also be called abc.

3. POS mechanism principle POS machine reads the cardholder's magnetic stripe information on the card through a card reader. The POS operator enters the transaction amount and the cardholder enters the personal identification information (namely the password). The POS passes this information through the UnionPay. The center sends the card issuing banking system, completes the online transaction, gives information on success or not, and prints the corresponding ticket. Each commodity sales details (sales price, department, time period, customer level) are automatically recorded and then transmitted back to the computer by the online framework. Through the computer computing and processing that can generate a variety of sales statistics analysis information for business management basis.

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