The interactive whiteboard can communicate with the computer, connect the whiteboard to the computer, and use the projector to project the contents of the computer onto the screen of the whiteboard. With the support of special applications, a large screen, interactive collaborative meeting or teaching environment can be constructed. Using a special stylus instead of mouse to operate on the whiteboard, you can run any application, edit, annotate and save files, and other operations that can be realized by using the keyboard and mouse on the computer.

This is the answer in Baidu Encyclopedia, but it is not popular enough.

Generally speaking, interactive whiteboard is a part of the equipment environment that uses the trinity of whiteboard, computer and projector. In addition, interactive whiteboard software can be installed on a computer and then annotate the contents of the computer desktop, which is mainly suitable for teaching and business meetings.

In addition, there are several technologies to achieve interactive functions, such as infrared, electromagnetic, pressure sensitive, ultrasonic, optical, etc., all of which are signal capture technologies realized by direct interaction between people and electronic whiteboard. The signal communication between electronic whiteboard and computer is generally through USB cable.

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