Closed Circuit Television (CCTV) cameras are widely used for surveillance and security purposes. They are designed to capture and transmit video signals to a specific set of monitors or recording devices. CCTV systems are employed in various settings, including homes, businesses, public spaces, and government facilities.

Video conferencing has revolutionized the way individuals and businesses communicate, enabling face-to-face interactions regardless of geographical distances. This technology leverages audio and video capabilities to facilitate real-time virtual meetings over the internet.