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  2. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Closed-circuit television ( CCTV ), also known as video surveillance, [1] [2] is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or mesh wired or wireless links. Even though ...

  3. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    Power over Ethernet ( PoE) describes any of several standards or ad hoc systems that pass electric power along with data on twisted-pair Ethernet cabling. This allows a single cable to provide both a data connection and enough electricity to power networked devices such as wireless access points (WAPs), IP cameras and VoIP phones .

  4. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    This list of Internet top-level domains (TLD) ... IT businesses, other tech-focused businesses, businesses that sell electronics or home security systems ...

  5. IP camera - Wikipedia

    en.wikipedia.org/wiki/IP_camera

    Connection. Ethernet, Wi-Fi. An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance, but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network.

  6. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    Access control. A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation. In physical security and information security, access control ( AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming ...

  7. Common Vulnerabilities and Exposures - Wikipedia

    en.wikipedia.org/wiki/Common_Vulnerabilities_and...

    Common Vulnerabilities and Exposures The Common Vulnerabilities and Exposures ( CVE) system provides a reference method for publicly known information-security vulnerabilities and exposures. [1] The United States' National Cybersecurity FFRDC, operated by The MITRE Corporation, maintains the system, with funding from the US National Cyber Security Division of the US Department of Homeland ...

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