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A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony , live streaming and social media , and security . Webcams can be built-in computer hardware or peripheral devices , and are commonly connected to a device using USB or wireless protocol .
The earliest video cameras were based on the mechanical Nipkow disk and used in experimental broadcasts through the 1910s–1930s. All-electronic designs based on the video camera tube, such as Vladimir Zworykin's Iconoscope and Philo Farnsworth's image dissector, supplanted the Nipkow system by the 1930s.
FogCam [a] is the longest-running webcam in the world, barring maintenance breaks and camera replacements. In 1994, two students Jeff Schwartz and Dan Wong set up the webcam at San Francisco State University. It was nearly shut down in 2019 as the creators said they faced difficulties in maintaining the webcam.
Windows Camera is an image and video capture utility included with the most recent versions of Windows and its mobile counterpart. It has been around on Windows-based mobile devices since camera hardware was included on those devices and was introduced on Windows PCs with Windows 8, providing users for the first time a first-party built-in camera that could interact with webcam hardware. [4]
Closed circuit TV monitoring at the Central Police Control Station, Munich, Germany in 1973 Desk in one of the regional control-rooms of the National Police in the Netherlands in 2017 CCTV control-room monitor wall for 176 open-street cameras in 2017
PHOTO: Lainey Wilson accepts the Female Vocalist of the Year Award onstage during The 58th Annual CMA Awards, Nov. 20, 2024, in Nashville, Tenn. (Theo Wargo/Getty Images)
Leica camera (1950s) Hasselblad 500 C/M with Zeiss lens. A camera is an instrument used to capture and store images and videos, either digitally via an electronic image sensor, or chemically via a light-sensitive material such as photographic film.
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