What does CCTV stand for?

CCTV stands for Closed Circuit Television. This term refers to a television system where signals are transmitted from cameras to specific monitors or recording devices, typically for surveillance and security purposes. Unlike traditional broadcast television, which transmits signals openly for anyone to receive, closed circuit television restricts access to the signals, ensuring that only authorized users can watch or record the footage. This control over access is critical in environments such as banks, shopping malls, and public spaces, where enhanced security measures are necessary.

The other options relate to various concepts but do not accurately describe what CCTV is or how it operates within surveillance technology.