Closed-circuit television (CCTV) is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.
Security is the degree of protection against danger, damage, loss, and criminal activity. Security as a form of protection are structures and processes that provide or improve security as a condition.
Smart Systems are defined as miniaturized devices that incorporate functions of sensing, actuation and control.
Telecommunications network is a collection of terminals, links and nodes which connect together to enable telecommunication between users of the terminals.