Ordering is divided into traditional ordering and new ordering. Not to mention the traditional, low. The interface is unsightly and inconvenient, and there are several new ordering machines. General equipment is more expensive, and some posts are fixed. Nowadays, it is popular to use intelligent pos machines as hardware devices to order food, and the representative is the saury ordering system. The advantages are light and compact, relatively cheap, more in line with the characteristics of the mobile Internet era (waiters can use pos to do any service for customers), and can customize personalized interfaces for catering practitioners.