System History

History of CCTV Systems

From analog coax networks to AI-enabled IP video, CCTV transformed into a core security and intelligence platform.

Overview

CCTV began with analog cameras connected via coax to DVRs. The shift to IP brought network cameras, NVRs, scalable storage, and remote management. Today, AI adds detection, classification, and insights.

IP cameras replaced analog; edge analytics add intelligence
Scalable recording: NVRs, cloud archives, retention policies
Networking: PoE, VLAN segmentation, bandwidth planning
Cybersecurity: hardening, least privilege, secure remote access

Timeline

1980s–1990s: Analog cameras, time-lapse tapes, matrix switchers
2000s: NVRs, megapixel sensors, H.264, remote access
2010s: VMS platforms, ONVIF interoperability, edge analytics
2020s: AI detection, re-identification, privacy-compliant workflows

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