Anolog VS High Definition Security cameras

What is the difference? Analog is a type of technology for surveillance recorded in history of its used in the U.S. since 1949, it has a evolutionized through the years and we now have 1080p high-definition cameras and 4K cameras that are now available in the market, the difference of both is the HD high quality image that can display a much more clear image on big size monitors and mobile devices thru the internet.

TVL & HD cameras

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