You may not be sitting on your couch wondering if there’s any difference between DVRs and NVRs, but if you’re doing any research for a home security system, you may have seen these terms thrown around ...

First came the camera and monitor, closely followed by the video cassette recorder, recording one video stream to a three-hour tape at 25 frames per second and often triggered by an input device.

DVR security systems (digital video recorders) and NVR security systems (network video recorders) connect with CCTV security systems, enabling you to record what the CCTV cameras see, and play it back ...