Learn in the textbookInput Devices for Capturing Text and Images
DefinitionA webcam (Webカメラ) is a small camera that films the people or scenery in front of it and streams the footage to the computer as video without a break.
ExplanationAn image sensor turns the light coming through the lens into electrical signals and passes them to the PC without interruption. Some are built into the top of a laptop screen and others plug in over USB, and they are used for video meetings and live streaming.
AnalogyAn eye attached to the PC that keeps showing what it sees on the other person's screen as it happens.
Memory hookThe "web" in the name comes from its use in sending pictures across the internet.