A webcam is a camera that is connected to a computer, typically via USB port. Webcams are used for video conferencing and live streaming.
They’re also commonly built into laptops—so if you have a laptop with a built-in camera, that’s technically a webcam. And if you have a smartphone with a camera, you can use apps to turn it into a makeshift webcam for your computer as well.
Frequently Asked Question
What do you call a camera connected to a computer?
(WEB CAMera) A video camera that faces the user. Webcams are built into laptops but are separate units that attach to the monitor of a desktop computer. A Webcam is used for video calling and taking selfies, and although most models include a microphone, many users opt to use headphones for better audio quality. 
To conclude, a camera connected to a computer can be called many things. Some people might call it a digital camera, while others might call it a webcam. Ultimately, it doesn’t matter what you call it, as long as you know what it is and how to use it.