It has to be said that in the past, multimedia display systems composed of traditional projectors and computers were widely used in school teaching, corporate meetings, or business applications, which improved the speed and intuitiveness of information dissemination. With the advancement of technology, people are constantly pursuing new things, and the shortcomings of projectors in use are gradually becoming apparent. The problem of users being unable to interact with computer systems in a more intuitive and clear way during the use of projectors is becoming increasingly serious, and it can no longer meet people's needs for use.

Educational All-in-One MachineAdopting an integrated appearance design, it integrates the functions of various devices such as computers, televisions, speakers, and electronic whiteboards. Easy and convenient installation, does not take up too much space. However, in the past, there were too many supporting facilities for multimedia projection teaching equipment, which were difficult to install, complex to wire, and cumbersome to operate. The equipment investment cost was much higher than that of educational all-in-one machines.

All functional applications of educational all-in-one products will have a core application software, which is interactive electronic whiteboard software. Its functional applications are similar to traditional blackboards, but it is more advanced and has more functions than blackboards. More importantly, the application of infrared/capacitive education all-in-one machines has solved the problem of dust pollution caused by the use of black and white chalk by teachers and students in the past, creating a dust-free, pollution-free, technological, and green educational and learning environment for teachers and students.

With the changing times, the methods of disseminating knowledge are also constantly evolving. The traditional teaching mode cannot meet the learning needs of students in the new era, and cannot improve their learning enthusiasm and interest. The application of educational all-in-one machines, with its unique multimedia technology and human-computer interaction touch function, presents knowledge to learners in a new way that is more vivid and intuitive, improving their learning enthusiasm and stimulating their learning enthusiasm.

Compared to the problem of being greatly affected by light in previous projection teaching, the educational all-in-one machine does not have this problem at all. The LCD display screen of the large-sized touch all-in-one machine has a resolution of up to 1920 * 1080, with clear images, realistic colors, and a viewing angle of 178 degrees, allowing every student in the classroom to clearly see the displayed content, thereby attracting students' attention and achieving the goal of improving teaching efficiency.

Faced with so many advantages of educational all-in-one machines, how can projectors not be eliminated? I believe that in the near future, although the application of projectors will definitely exist, touch all-in-one machines will completely replace projectors in multimedia fields such as school teaching, corporate meetings and training.