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A webcam is a video camera that feeds its image in real time to a computer or computer network. unlike an ip camera (which uses a direct connection using ethernet or wi-fi), a webcam is generally connected by a usb cable, firewire cable, or similar cable. their most popular use is the establishment of video links, permitting computers to act as videophones or videoconference stations. the common use as a video camera for the world wide web gave the webcam its name.