Webcams are known for their low manufacturing cost and flexibility, making them the lowest cost form of video telephony. Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras. The term 'webcam' (a clipped compound) may also be used in its original sense of a video camera connected to the Web continuously for an indefinite time, rather than for a particular session, generally supplying a view for anyone who visits its web page over the Internet. Unlike an IP camera (which connects using Ethernet or Wi-Fi), a webcam is generally connected by a USB cable, or similar cable, or built into computer hardware, such as laptops. When sent to a remote location, the video stream may be saved, viewed or on sent there. When "captured" by the computer, the video stream may be saved, viewed or sent on to other networks via systems such as the internet, and email as an attachment. A webcam is a video camera that feeds or streams its image in real time to or through a computer to computer network.
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