Closed-circuit television (CCTV), as a collection of surveillance cameras doing video surveillance, is the use of television cameras for surveillance. It differs from broadcast television in that all components are directly linked via cables or other direct means. CCTV is used in banks, casinos, shopping centres, streets, airports etc. (the eye in the sky). The use of CCTVs in public places has increased, causing debate over security vs. privacy.
Closed Circuit TV (CCTV) - where the picture is viewed or recorded, but not broadcast - was initially developed as a means of security for banks. Today it has developed to the point where it is simple and inexpensive enough to be used in home security systems, and for everyday surveillance.
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