NVR or Network Video Recorder is a software program based on internet protocol (IP) which sits on a network. Network Video Recorders can be controlled remotely through a LAN (Local Area Network) or over the Internet Since they are IP based and provide greater flexibility. Synchronized recording and remote access of live video streams from an IP Camera is the basic function of an NVR software program.
It’s no brainer at all to install and use Network Video Recorders. Usually, a Network Video Recorder does include playback ability and flexible recording, a user-friendly GUI, an optional instinctive remote control unit, Smart Motion Detection, and PTZ (Pan, Tilt and Zoom) camera control.
An NVR has some resemblance to a Digital Video Recorder in relation to recording and play back. Digital images or video streams are received over the network and recorded on a hard disk or on other mass storage device in a digital format by an NVR system.
A Digital Video Recorders or DVR is, actually a hybrid system which is capable to accommodate analog cameras and store the video on a hard drive in digital format. However, Some DVRs have a basic interface to the network that provides remote viewing abilities. Whereas NVR systems do not possess a dedicated monitor and keyboard. All viewing and control of the NVR takes place remotely over the network through a PC.