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-- About Closed-Circut Television --

Closed-circut Television is when video cameras are used to transmit a signal to a specific place on a limited set of monitors. Because the signal is not openly transmitted CCTV is not the same as broadcast television. Even though most video cameras fit this definition, the term is most often used for surveillance in places such as banks, casinos, airports, convenient stores and other places that have secure areas or need monitoring. CCTV systems generally include cameras, a video switching matrix, one or more monitors, and a VCR or DVR (Digital Video Recorder).

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Wikipedia was used as a source for this information. Thank you to all those who contributed to it.