Webcams (web cameras) are small cameras, (usually, though not always, video cameras) whose images can be accessed using the World Wide Web, instant messaging, or a PC video conferencing application. The term webcam is also used to describe the low-resolution digital video cameras designed for such purposes, but which can also be used to record in a non-real-time fashion.

One of the more common applications of webcams has been for the dissemination of Internet pornography and video chat. Adult applications usually involve streaming video to a centralized server, where it is relayed to viewers who have subscribed to the service. The most common set-up is a model who interacts with viewers in a chatroom.

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