At present, the development of food ordering machine has gone through three stages: the first stage began around 2000, and it is a button-type food ordering machine similar to Nokia mobile phone. It was completely new to the catering industry at that time, and almost no one installed it. With the passage of time, restaurants with advanced ideas tried to install ordering machines, almost all of them tried to develop and accumulate in 2000-2005; By 2006, Beijing, Shanghai, Guangzhou and other big cities began to widely accept the concept of ordering machine and use it. The development of Wifi menu ordering machine has entered the second stage (20-2006-20 10/0). The second stage is mainly due to the rapid development of personal electronic products, especially the rapid development of touch-screen terminal products, especially the blowout development of touch-screen mobile phones, and then the ordering machine becomes a touch-screen or similar electronic ordering terminal. However, the touch screen or tablet ordering machine has great disadvantages, such as unstable signal and prone to machine failure. In this way, the touch-screen menu ordering machine gradually withdrew from the market and began to return to its original state, using the button menu ordering machine, and then reached the third stage (after 20 1 1 year). Multifunctional ordering machine-call ordering machine, which can not only order food, but also be used as a receiver; Because the restaurant is now facing a serious phenomenon that it is difficult to call the waiter, and the tables in the hall are ok, it is difficult to call the waiter to serve food in the box. You have to go out to the box to find the waiter for half a day. The use of call sorter solves this problem. When the guest has something to do, the ordering machine can receive the message by just clicking the pager, and the waiter can serve directly, so that you can "do nothing" when the guest needs it and disappear when the guest doesn't need it. Because the call ordering machine integrates the functions of the call system and the ordering system, it is widely accepted by restaurants. At present, the market is relatively mature, and the call ordering machine is the brand of talkative cat and Hengyuan Shi Sheng.