Getting started with cash register knowledge

Cash register external device

With the development of modern technology, the accessories of electronic cash registers have gradually increased, and the following are common.

1) Printer—The electronic cash register can be connected to an external printer (such as a kitchen printer and a receipt printer used in the restaurant industry) in addition to the built-in printer.

2) Barcode readers - also known as bar code scanners, are barcode reading devices. They can be divided into four types according to their appearance: pen type, hand-held type, desktop type, and card type. According to the light source, they can be divided into two types: infrared light. And laser.

3) Magnetic Card Reader - This is a read or write device for magnetic recording signals. Read the information recorded by the credit card into the cash register. There are many types and models, and the number of tracks is divided into three types: single track, double track and triple track.

4) Electronic scales—When the scale is used to measure goods, the electronic scale transmits the extremely heavy data to the cash register.

5) Modem—that is, the MODEM is to transmit the data of the cash register to the computer through the telephone line.

6) Backup power supply—that is, the UPS is used to supply power directly to the cash register after the power is turned off.

7) Communication networking interface—The hardware consists of a set of chips or cards and physical ports. The software consists of a set of programs. There are mainly interfaces for communication between the cash registers and a 485 interface card for the cash register and the computer.