Router (Router) works in the third layer of the Open Systems Interconnection Reference Model (OSI/RM) - the network layer of a network interconnection device. It uses a routing algorithm to select a path to a destination from a number of routes for packets traveling over the network and forwards them.
The use of a router allows for the interconnection of networks of the same or different types. The device that performs this function was previously called a gateway, but is now referred to as a router to emphasize its network interconnection function at OSI/RM Layer 3.
Camera (CAMERA or WEBCAM), also known as computer camera, computer eye, electronic eye, etc., is a video input device, is widely used in video conferencing, telemedicine and real-time monitoring.
Ordinary people can also talk and communicate with each other via webcam on the Internet with images and sound. In addition, it can also be used for a variety of popular digital video, audio and video processing
These are some of the most important applications that can be used for video conferencing.