Closed-circuit television - Wikipedia
Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.
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How can I restore deleted photo video files from Nikon ...
How to perform Nikon Coolpix digital camera photo recovery, video recovery, and data recovery? Check out the best way to recover deleted formatted or lost photos videos and other files from Nikon Coolpix digital cameras memory card.