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A network video recorder (NVR) is a specialized computer system that records video [1] to a disk drive, USB flash drive, memory card, or other mass storage device. An NVR itself contains no cameras, but connects to them through a network, typically as part of an IP video surveillance system.
An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance , but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network .
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ReplayTV won the "Best of Show" award in the video category [8] with Netscape co-founder Marc Andreessen as an early investor and board member, [9] but TiVo was more successful commercially. Ad Age cited Forrester Research as saying that market penetration by the end of 1999 was "less than 100,000".
The CP-16 used a variety of Angenieux lenses, a favorite among television news photographers was the 9.5 - 57mm zoom with a F1.6-2.2 aperture making it a very versatile camera; an operator could quite literally shoot an interview in a closet. The CP-16R series used a spinning mirror shutter. Documentary director Curtis Choy films with a CP-16.
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