I’ve noticed lately that some of my colleagues use the terms DVR and NVR interchangeably. Most of those that do have been around for a while. I’m not saying they are old, but if the shoe fits! The question remains…should these terms be used interchangeably?
It turns out that the Video Surveillance industry technically defines a DVR as a video recording device that has analog inputs for connecting analog cameras and which contains codecs to convert the analog video from the cameras into a digital format for saving on some type of storage media. As a result, DVRs were introduced many years ago as an upgrade to CCTV systems that used VCRs to store analog video from camera feeds.