The structure of electronic cash register is mainly composed of electronic devices and mechanical parts, with seven parts:
Motherboard-Central Data Processing Unit
Memory-storing information, data and programs.
Keyboard-used to enter various sales data.
Printer-Used to print sales invoices and manage stubs.
Display screen-used to facilitate man-machine conversation between cashier and customer.
Cashier-used to deposit cash for collection.
External device interface-used to connect various external devices.
5. External equipment of cash register, with the development of modern science and technology, the ancillary equipment of electronic cash register is gradually increasing, and the common ones are as follows.
Printer-In addition to the built-in printer, the electronic cash register can also be connected with an external printer (such as kitchen printer and bill printer used in catering industry). )
Bar code reader, also known as bar code scanner, is a bar code reading device, which can be divided into four types in appearance: pen type, hand-held type, desktop type and card type, and infrared light type and laser type according to light source.
Magnetic card reader-it is a device that reads or writes magnetic recording signals. Read the information recorded in the credit card into the cash register. It has many types and modes, which can be divided into three types according to the number of tracks: single track, double track and three track.
Electronic scales-When weighing goods on site, electronic scales transmit the weight and data to the cash register.
Modem-that is, the modem transmits data from the cash register to the computer through the telephone line.
Standby power supply -UPS is used to supply power directly from the battery to the cash register after power failure.
Communication networking interface-Its hardware consists of a set of chips or cards and physical ports, and its software consists of a set of programs. There are mainly communication interfaces between cash registers and 485 interface cards connected between cash registers and computers.