IT Explanations

Clear explanations of IT concepts, protocols, architecture and enterprise technologies.

Concepts, protocols and architecture
Infrastructure, cloud and security
Clear explanations and real-world context
For sysadmins, IT admins and MSPs

All Explanations

Understand the technology behind your infrastructure.

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A CCTV video surveillance system with security cameras, live monitoring screens, mobile viewing, recording, analytics.

What Is CCTV? Video Surveillance Systems Explained

CCTV is a video surveillance system using cameras, recorders (DVR/NVR), and monitors. Modern IP CCTV adds remote access, AI analytics, and integration with access control. Covers architecture, IP vs analog, storage, and cybersecurity risks.

Jul 23, 20268 min readbeginnerEmanuel De Almeida