webcam


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webcam

a camera that transmits still or moving images over the internet
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

webcam

(World-Wide Web, hardware, video)
(World-Wide Web camera) Any video camera whose output is available for viewing via the Internet or an intranet. Typically a webcam would be a slow-scan CCD video camera connected to a video capture card in a computer. Images from the camera are captured periodically and made available on a web page. In 1999 there are hundreds of webcams in operation around the world showing everything from bedrooms to traffic.

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Webcam

(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. Stand-alone microphones with greater sensitivity are also used for studio presentations.

Webcams, Network Cameras and Home Cams
A Webcam is attached to a computer, whereas network and connected cameras are stand-alone units used for monitoring. Typically a "network camera" is part of a complete surveillance system with several cameras for stores and offices (see network camera). A "home cam" plugs into the home network like a printer (see connected camera). See Webcamming, Webcam blocker, POV camera, lifecasting and spycam.


Desktop and Laptop Webcams
Unless a desktop computer is an all-in-one, the Webcam is a separate unit that clamps onto the top of the monitor as in this example (top). Laptops come with camera and microphone at the top of the screen (bottom).
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References in periodicals archive ?
Real-time monitoring is one of the most important attributes of webcams. The devices are deployed with high-resolution digital cameras and semiconductor chips that capture images and record videos in detail.
In many countries worldwide, reported cybercrimes through webcam videos have been on the rise.
He compares taping webcams as a security measure similar to locking car doors.
Many users are now complaining that they can no longer use their USB-based webcams since updating to the latest version of Windows 10.
But before connecting them in changing weather, when fronts are moving or conditions unstable, a wise pilot will use available webcams along his or her route to round out "all available information."
In his article, which was published on the academic website The Conversation, he said: "News that government intelligence agency GCHQ has been intercepting and storing webcam images from 1.8 million users of Yahoo's chat service under the codename Optic Nerve is a reminder of how close we are to living in a surveillance state.
One of Optic Nerve's reports said: "A surprising number of people use webcams to show intimate parts of their body to the other person."
an attacker to remotely control the desktop; take screenshots; record webcam
Webcam Can also play 720x1280 video files on skype.
The software can change the traffic signals according to the number of vehicles on the road after collecting data through a normal webcam.