Webcam

The computer-connected video camera or webcam that streams its image in real-time to a computer network
A webcam is a video camera that feeds or streams an image or video in real-time to or through a computer to a computer network, such as the Internet. Webcams are typically small cameras that sit on a desk, attach to a user's monitor, or are built into the hardware. Webcams can be used during a video chat session involving two or more people, with conversations that include live audio and video. For example, Apple's iSight camera, which is built into Apple laptops, iMacs, and a number of iPhones, can be used for video chat sessions, using the iChat instant messaging program.