How to play photos on homework help online class webcam

How to put photos on the webcam of homework help online class: you can prepare the photos you need to put in advance, and then connect it to play them.

Camera is a video input device, a kind of closed-circuit television, is widely used in video conferencing, telemedicine and real-time monitoring and so on. Cameras generally have the basic functions of video photography, dissemination and still image capture.