Webcam

webcam is a video camera that captures low-cost images, transferring them from almost instantaneous way for the computer, and can be employed in a wide range of applications such as videoconferencing, video editors, publishers of image, tracking environments, and others. Today, we can buy webcams of low or high quality of image (up 2.0 Megapixels), may submit or not embedded interface audio (microphone) and other resources that today are the webcams are leds (of light emitting diodes) that are triggered if the sensors detect the webcam little or no external source of light.

Usually the connection used with the computer is the type of image capture and USB is conducted through an electronic component called CCD