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2. Network video recorder - Wikipedia

   en.wikipedia.org/wiki/Network_Video_Recorder

   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. NVRs typically have embedded operating systems .

3. Digital video recorder - Wikipedia

   en.wikipedia.org/wiki/Digital_video_recorder

   A digital video recorder ( DVR ), also referred to as a personal video recorder ( PVR) particularly in Canada and British English, is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device. The term includes set-top boxes (STB) with direct ...

4. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   Surveillance cameras on the corner of a building. Surveillance camera in a residential community. Dome camera in Rotterdam central metro station. 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.

5. Review of Spectrum’s new Xumo streaming box with Cloud DVR ...

   www.aol.com/review-spectrum-xumo-streaming-box...

   Record up to 100 live shows at once. Save recordings for up to one year. Cost: $9.99 per month. If you’re using the set-top box/cable receiver box, you’re paying $12.99 per month for single ...

6. IP camera - Wikipedia

   en.wikipedia.org/wiki/IP_camera

   Connection. Ethernet, Wi-Fi. 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.

7. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered ...