A web camera, also known as a webcam, is a digital camera that connects to a computer and can transmit images or video over the internet.

• Function: Webcams capture still images or motion video, and can stream live video to a website, computer network, or other devices.
• Connectivity: They typically connect via USB, but can also be built into laptops or other devices.
• Uses: Common uses include video conferencing, online streaming, surveillance, and capturing images/videos for personal use.

For more information, you can check these resources:

• Wikipedia: Webcam
• TechTarget: Webcam