Webcam

A digital camera designed to provide live video to a computer or network, typically for video calls, streaming, or monitoring.

Image sensor: A semiconductor device that converts incoming light into electrical signals representing an image. It captures the light that becomes each webcam frame.
Video telephony: Real-time communication in which participants exchange audio and video over a network. Webcams provide the picture in computer-based video calls.
Digital camera: A camera that records images as digital data rather than on photographic film. Webcams are a specialized kind of digital camera optimized for computer connections.
Telepresence: The experience of feeling present in a distant place through communication technologies. Webcams make visual presence possible across distance, though with less immersion than robotics or virtual reality.
CMOS sensor: An image sensor built with complementary metal-oxide-semiconductor technology, widely used in digital cameras. Most modern webcams use CMOS sensors to capture video.
Video conferencing: A meeting between people in different locations using live audio and video connections. Webcams let participants appear on screen during remote meetings.
Digital single-lens reflex camera: A digital camera that uses a mirror and optical viewfinder to direct light to the photographer. A DSLR offers interchangeable lenses and manual control rather than webcam-style fixed computer video.
Digital divide: The unequal access to digital technologies, connectivity, and the skills needed to use them. Webcam-based participation depends on access to a camera, computer, and reliable internet.
Video compression: The reduction of video data by removing redundancy or less perceptible information. Compression helps webcams transmit moving images using limited bandwidth.
Live streaming: The real-time transmission of audio or video over a network to an audience. A webcam can act as the camera source for a live broadcast.

Linked from 1 page

Video cameraBroader topic: It prioritizes live communication over independent, high-control recording.