How to Calculate CCTV storage capacity? | எந்த மாடல் சிறந்தது? | Storage எப்படி கணக்கிடுவது?

How to Calculate CCTV storage capacity? | எந்த மாடல் சிறந்தது? | Storage எப்படி கணக்கிடுவது? #kavicomputers
The main difference between a digital video recorder (DVR) and a network video recorder (NVR) is the type of camera they work with and how they process video data:
DVR
Works with analog cameras that transmit video signals to the DVR over coaxial cables. The DVR then converts the analog footage to a digital format for storage and viewing. DVRs are a good choice if you already have a coaxial cable system in place.
NVR
Works with IP cameras that send processed video data to the NVR over an ethernet cable or WiFi. NVRs are a good choice if you're starting from scratch and looking for a top-of-the-line system.
Here are some other differences between DVRs and NVRs:
Cost
NVRs are generally more expensive than DVRs.
Installation
NVRs are easier to install because they can be connected wirelessly, while DVRs are wired and require coaxial cables.
Video quality
IP cameras used with NVRs typically offer higher resolution than analog cameras used with DVRs.
Cybersecurity
Internet connectivity for NVRs exposes your network to cybersecurity risks.
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