Interactive whiteboard / interactive all-in-one / teaching whiteboard / conference whiteboard / smart whiteboard / interatve flat panel adopts the advanced multi-point touch interaction technology at home and abroad. It is a multi-functional human-computer interaction terminal using screen touch operation and integrates the functions of interactive electronic whiteboard, TV, audio, computer, Internet, multimedia playback, etc. It is widely used in education and teaching, enterprise meetings, business exhibitions, hall inquiries, and other fields. Such as network multimedia teaching system, recording, and broadcasting system of education and training, enterprise product display system, automobile 4S store product experience system, real estate sales inquiry system, airport station touch inquiry system, medical institution treatment inquiry system, securities, and stock trading system, etc.