Explanation:
CCTV. Closed-circuit television. DVR. Digital video recorder - a digital video recorder is basically a computer that converts the incoming (analog) signal from the cameras to digital, and compresses it, and stores it.
I hope you help
The full form of CCTV is: closed circuit television.
CCTV is an abbreviation for closed circuit television and it can be defined as a television system that makes use of video cameras to privately transmit digital signals to a specific location (place), especially for the purpose of security surveillance and monitoring of an environment.
This ultimately implies that, a closed circuit television (CCTV) is primarily used for enhancing the security of a location wherein it is installed.
Read more on CCTV here: https://brainly.com/question/23348225
