Closed-circuit television (CCTV) refers to a television system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. Unlike broadcast television, where the signal is openly transmitted, CCTV systems are designed to transmit video signals from specific cameras to specific monitors or recording devices. Key components of a CCTV system typically include: 1. **Cameras**: These can be analog or digital and vary in type and functionality (e.g.
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