Today the use of a video camera to capture what is going on around is becoming a more common trend. A closed circuit television system or CCTV is where a picture taken by a video camera is transmitted around a closed cable system to a television or as is more common a monitor,"This where a video camera is used to enable others to view a scene or to record for historical purposes."
CCTV system come is two varities
Travel to the world of Overt CCTV technology | Travel to the world of Covert CCTV technology
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