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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 protocols .
The camera weighed 8 pounds (3.6 kg), recorded black-and-white images to a cassette tape, had a resolution of 0.01 megapixels (10,000 pixels), and took 23 seconds to capture its first image in December 1975. The prototype camera was a technical exercise, not intended for production. [20]
Camera. 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. As a pivotal technology in the fields of photography and videography, cameras have played ...
Closed-circuit television (CCTV), also known as video surveillance, [1][2] is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or ...
Yūrakuchō Store, in Tokyo. Bic Camera, Inc. (株式会社ビックカメラ, Kabushiki gaisha Bikku Kamera) is a consumer electronics retailer chain in Japan. Currently, it has 45 stores in 17 prefectures. Bic Camera has a 50% ownership of former rival store Kojima [2] with 143 stores [3] and full ownership of computer store chain Sofmap with ...
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A CompactFlash (CF) card, one of many media types used to store digital photographs. Digital camera (Panasonic Lumix DMC-TZ10) user interface, indicating the approximate count of remaining photos. Many camera phones and most stand alone digital cameras store image data in flash memory cards or other removable media.
A home-made pinhole camera lens. A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura ...