CCTV stands for Closed-circuit television. Its a kind of a security technique which involves the usages of video camera which are commonly called CCTV cameras. The purposes of these are to transmit a signal to TV sets or monitors for the purpose of security. CCTV is a lot different than broadcast television. It differs in that the signal is not openly transmitted.
CCTV systems employ point to point wireless links, often used for surveillance. These Camera security systems are used in areas which need security. Some examples can be banks, casinos, airports, shopping malls or military installations, army bases etc. However, the increased use of CCTV in public places has caused debate over public. It is argued that this is a debate on security versus privacy. In many industries and industrial plants and semi-industrial plants, these cameras are used to observe parts of processes that are remote. The control is through a control room. Continuous operation of CCTV systems could be done. They can also be used to overview just a specific portion or an area.