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When it was first introduced, video surveillance systems were used primarily by medium to large businesses. Currently however, they are becoming much more common in homes. video surveillance security systems are also known as closed circuit TV (CCTV) and are used to monitor vulnerable areas around the home to provide protection from burglars and other threats.
A viewing monitor is a key component in a video surveillance system. Such a monitor displays video images from cameras. These images are often black and white and will have a much higher resolution than the images from an analog TV set - say, from 500-1000 lines.
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