Human-computer interaction (HCI) refers to the information exchange process in which people and computers complete certain tasks in a certain interactive way by using a certain dialogue language. Many famous companies and academic institutions are studying human-computer interaction. In the history of computer development, people pay little attention to the ease of use of computers. Nowadays, many computer users complain that computer manufacturers have not invested enough energy to make their products "user-friendly". On the other hand, these computer system developers are also complaining. Their reason is that designing and manufacturing computers is a very complicated job, and just studying how to apply computers in new fields takes up most of their energy, and there is really no extra energy to study how to improve the usability of computers.

An important problem of human-computer interaction (HCI) is that different computer users have different use styles-they have different educational backgrounds, different ways of understanding, different learning methods and different skills. For example, a left-handed person has completely different habits from ordinary people. In addition, cultural and ethnic factors should also be considered. Secondly, the research and design of human-computer interaction need to consider the rapid change of user interface technology, and the new interaction technology provided may not be suitable for previous research. Also, when users gradually master the new interface, they may put forward new requirements. The man-machine interaction function of the operating system is an important factor that determines the "friendliness" of the computer system. The function of human-computer interaction is mainly completed by input and output external devices and corresponding software. The devices that can be used for human-computer interaction mainly include keyboard display, mouse and various pattern recognition devices. The software corresponding to these devices is the part of the operating system that provides human-computer interaction function. The main function of the human-computer interaction part is to control the operation and understanding of related equipment and execute related commands and requirements transmitted through human-computer interaction equipment. The early human-computer interaction device was a keyboard display. The operator inputs the command through the keyboard, and the operating system executes it immediately after receiving the command, and displays the result through the display. There are many ways to input commands, but the explanation of each command is clear and unique.

With the development of computer technology, there are more and more operation commands and stronger functions. With the development of pattern recognition, the appearance of input devices such as speech recognition and Chinese character recognition makes it possible for operators and computers to interact at the level similar to natural language or limited natural language. In addition, human-computer interaction through graphics also attracts people to learn. These human-computer interactions can be called intelligent human-computer interactions. The research work in this field is being actively carried out.

Human-computer interaction is a science.

–How do users use computers?

How to design a computer system that can help users improve their work efficiency?

Multidisciplinary synthesis

–Computer science

psychology

sociology

–Graphic design

–industrial design