A webcam (abbreviation for "webcam") is a digital camera connected to a computer. You can send live images from anywhere you are in another location via the Internet. Many desktop and laptop screens come with a built-in camera and microphone, but if you do, you can add a separate webcam at any time.
A webcam is a small camera connected to a computer. If you buy an external webcam to use, you may also need a microphone if you intend to use the camera to capture video or live.
The first webcam is considered the XCoffee, also known as the Troiani Coffee Room. The camera began in 1991 with the help of Quentin Stafford-Fraser and Paul Jardetzky and went online in November 1993 with the help of Daniel Gordon and Martyn Johnson. The camera supervised a coffee out of the fourth Troiani, the University of Cambridge, so people do not have to travel to coffee when I had coffee. After being cited by the press, the site had over 150,000 people watching coffee online. Webcam was closed August 22, 2001. The left image is an example of how the XCoffee appeared online.
How does a webcam work?
The webcam is a compact digital camera that can connect to your computer to transmit live video images (as they happen). Like a digital camera capture light through a small front lens with a small microscopic light detector grid embedded in a microchip detection image (or a charging coupling device (CCD) or, most probably these days, a sensor of CMOS image). As we will soon see, the image sensor and their circuitry convert the image in front of the camera in digital format, a set of zeros and one who know how to use a computer. Unlike a digital camera, a web camera does not have a built-in memory card or flash chip: there is no need to "remember" pictures because it is designed to capture and instantly send them to a computer. That's why web cameras have USB cables emerging from the back. The USB cable powers the computer's webcam and detects the digital data captured by the webcam sensor on the computer on which it travels to the Internet.