Sunday 18 December 2011

Webcam

webcam is a video camera that feeds its images in real time to a computer or computer network, often via USB, ethernet, or Wi-Fi.
Their most popular use is the establishment of video links, permitting computers to act asvideophones or videoconference stations. This common use as a video camera for the World Wide Web gave the webcam its name. Other popular uses include security surveillance andcomputer vision and there are also uses on sites like video broadcasting services and for recording social videos .
Webcams are known for their low manufacturing cost and flexibility, making them the lowest cost form of videotelephony. They have also become a source of security and privacy issues, as some built-in webcams can be remotely activated via spyware.

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