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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 ...

  3. Closed circuit - Wikipedia

    en.wikipedia.org/wiki/Closed_circuit

    Closed-circuit radio; Closed circuit breathing apparatus, commonly known as rebreathers for portable units, and as component parts of life-support systems for more complex equipment. Closed Circuit, a 1978 Italian film; Closed Circuit, a 2013 British thriller film; An electric circuit is a "closed circuit" if it contains a complete path between ...

  4. Closed-circuit television camera - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television...

    The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of people or devices with authorized access. Cameras can be either analog or digital. [ 1 ] Walter Bruch was the inventor of the CCTV camera.

  5. Electrical load - Wikipedia

    en.wikipedia.org/wiki/Electrical_load

    For example, if we use an input resistance to represent the load, the complete circuit looks like this: The input resistance of the load stands in series with Rs. Whereas the voltage source by itself was an open circuit, adding the load makes a closed circuit and allows charge to flow.

  6. On- and off-hook - Wikipedia

    en.wikipedia.org/wiki/On-_and_Off-hook

    The active state (i.e., a closed loop (short circuit between the wires) of a subscriber line or PBX user loop) An operating state of a communications link in which data transmission is enabled either for (a) voice or data communications or (b) network signaling. [2] [3]

  7. How the Clenched Fist Became a Black Power Symbol

    www.aol.com/lifestyle/history-behind-clenched...

    A protester holds up a large black power raised fist in the middle of the crowd that gathered at Columbus Circle in New York City for a Black Lives Matter Protest spurred by the death of George Floyd.

  8. Electrical network - Wikipedia

    en.wikipedia.org/wiki/Electrical_network

    A simple electric circuit made up of a voltage source and a resistor. Here, =, according to Ohm's law. An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances ...

  9. Can closed accounts be removed from your credit report? - AOL

    www.aol.com/finance/closed-accounts-removed...

    Closed accounts on your report will eventually disappear on their own. Generally, negative information on your reports is removed after seven years, while accounts closed in good standing will ...