What is CCTV, and how does it differ from other types of security cameras

CCTV stands for "Closed-Circuit Television." It is a system that uses video cameras to transmit video and sometimes audio signals to a specific set of monitors or recording devices. CCTV systems are commonly used for surveillance and security purposes, such as monitoring public areas, businesses, homes, and other locations.

Here's how CCTV differs from other types of security cameras:

1. Closed-Circuit: CCTV systems are typically "closed-circuit," meaning the video feed is not openly broadcasted over the internet. Instead, it's transmitted via a private network or cables to a limited number of monitors or recording devices. This offers more control and privacy compared to open systems like IP cameras.

2. Analog vs. IP Cameras: CCTV cameras traditionally used analog technology to transmit video signals. They are connected via coaxial cables to monitors and recording equipment. In contrast, IP cameras use digital technology and transmit data over computer networks (IP networks). IP cameras can offer higher resolution and more advanced features, and they are often considered part of modern CCTV systems.

3. Monitoring: CCTV systems are designed for real-time monitoring, which is the primary focus of many security applications. Security personnel can view the live feed on monitors and respond to events as they happen. Other security cameras, like trail cameras or dashcams, are primarily intended for recording and might not offer real-time monitoring capabilities.

4. Local Storage: Many CCTV systems store recorded video footage locally, typically on DVRs (Digital Video Recorders) or NVRs (Network Video Recorders). This local storage is often used for reviewing past events and investigations. In contrast, some other security cameras might rely on cloud storage for recorded video.

5. Wired vs. Wireless: CCTV systems are often hardwired, using cables to connect cameras to the central recording and monitoring equipment. This provides a stable and secure connection. Many other security cameras, especially wireless ones, rely on Wi-Fi or cellular networks for data transmission.

6. Scalability: CCTV systems can be easily scaled by adding more cameras to the existing setup, making them suitable for larger properties or facilities. Other security camera systems may have limitations in terms of scalability.

7. Use Cases: CCTV cameras are commonly used in various security and surveillance applications, including monitoring businesses, public spaces, and critical infrastructure. Other security cameras might be designed for specific purposes, such as doorbell cameras for residential use or body-worn cameras for law enforcement.

In summary, CCTV is a type of security camera system that uses closed-circuit technology, typically with analog or digital cameras, for real-time monitoring and local storage of video footage. The key difference lies in its closed-circuit nature and its focus on monitoring and surveillance applications. Other security cameras may have different features and use cases.