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2. Network video recorder - Wikipedia

   en.wikipedia.org/wiki/Network_Video_Recorder

   Simple NVR-based camera system. 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.

3. Optimum HDTV viewing distance - Wikipedia

   en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

   NHR: Display's native horizontal resolution (in pixels) NVR: Display's native vertical resolution (in pixels) CVR: Vertical resolution of the video being displayed (in pixels) Note: Make sure the angle mode is set to degrees when calculating the tangent. If using a spreadsheet such as Excel, you must multiply the angle by PI()/180. If DS is ...

4. Video wall - Wikipedia

   en.wikipedia.org/wiki/Video_wall

   A video wall in television studio. A video wall is a special multi-monitor setup that consists of multiple computer monitors, video projectors, or television sets tiled together contiguously or overlapped in order to form one large screen.

5. Digital video recorder - Wikipedia

   en.wikipedia.org/wiki/Digital_video_recorder

   A PC-based DVR's architecture is a classical personal computer with video capture cards designed to capture video images. An embedded type DVR is specifically designed as a digital video recorder with its operating system and application software contained in firmware or read-only memory.

6. Why Is NVR (NVR) Down 3.9% Since Last Earnings Report? - AOL

   www.aol.com/news/why-nvr-nvr-down-3-163904408.html

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7. On-screen display - Wikipedia

   en.wikipedia.org/wiki/On-screen_display

   In the past, most adjustments on TV sets were performed with analog controls such as potentiometers and switches. This was used more recently also in monochrome portable TVs. After remote controls were invented, digital adjustments became common. They needed an external display, which was LED, LCD, or VFD based. Including this display increased ...