Through public information and transaction services, touch query machine can significantly improve the stickiness of consumers, and realize the complementary and common growth of advertising and transaction revenue sources. The convenience of the transaction function will drive more people to use it, which will increase the added value of advertising, and the enthusiasm of merchants to place advertising will also increase accordingly. Advertising revenue can be used to further improve the technology, enrich the transaction capabilities, and constantly improve the user experience. In addition, the touch screen is also a data rich information platform. Through the statistics of end-users' query and purchase habits, valuable market information can be analyzed, which can be widely used in teaching research, business consulting or marketing promotion, and generate new added value. Touch all - in - one machine to serve the society, serve the people as their own duty, to build a "smart city" as the goal. It focuses on how to do a good job of service functions, how to make them more convenient to the masses, and how to meet the daily needs of business people and local residents. It seeks to apply information technology widely to economic development and public services. In key areas such as business and social life, resources can be allocated more accurately and faster, and energy consumption can be reduced to a greater extent, ultimately achieving the purpose of improving the overall operation efficiency of the city and the well-being of citizens. Touch all-in-one terminal equipment has been widely distributed in shopping malls, supermarkets, department stores, small shopping malls, happy plaza and other large shopping malls, as well as more famous tourist attractions, subway, high-end communities, office buildings, star hotels, 4S car shops, etc., convenient for people to use. It's a very wide range of services. These areas are very wide. In the eyes of advertisers, they are also the key areas of target groups, advertising value is self-evident. As a new form of media, touch - controlled all - in - one machine has its unique advantages. With the joint development of artificial intelligence and the Internet of things, as well as the country's strong support for technological innovation, human-computer interaction touch all-in-one device will be an intelligent product with huge market potential, according to Minglian Technology, the manufacturer of touch all-in-one device.