What is the CCTV means???

Most people think that CCTV is a relatively new invention, but then again, many don’t even know what it is... so first things, what exactly is Closed Circuit Television (CCTV)? Well the television bit is perhaps self-explanatory; it’s simply about putting a picture onto a television screen, or ‘video monitor’ to give it its correct title.

Let’s say for example, that you subscribe to Satellite TV. If you watch your favorite television program, you and perhaps a few million others will be able to receive the transmitted signal through the dish. As anyone with a correctly tuned can access this signal, we can safely describe this type of arrangement as an ‘Open Circuit Television’ or ‘OCTV’ system. If a signal is being linked from any source, whether it’s a DVD player, a camcorder, or a surveillance camera, directly to a display device such as a television, this is described as a ‘Closed Circuit’ simply because it is not available to anyone else.

So you can see that in the early days of developing video camera security systems, the pictures from the cameras were almost always sent to a monitor, or a video recorder, or indeed a sealed Control Room under ‘Closed Circuit’ conditions, hence the now widely accepted term “Closed Circuit Television”.