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  2. Smart doorbell - Wikipedia

    en.wikipedia.org/wiki/Smart_doorbell

    A smart doorbell is an internet-connected doorbell that notifies the home owner on his or her device (smartphone or any other gadget) when a visitor arrives at the door. It activates when the visitor presses the button of the doorbell, or alternatively, when the doorbell senses a visitor with its built-in motion sensors. The smart doorbell lets ...

  3. Doorbell - Wikipedia

    en.wikipedia.org/wiki/Doorbell

    Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]

  4. Electric bell - Wikipedia

    en.wikipedia.org/wiki/Electric_bell

    Older electric doorbell. An electric bell is a mechanical or electronic bell that functions by means of an electromagnet.When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound.

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  6. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    This usually entails engaging the power in the car several times while holding a button or lever. It may also include opening doors, or removing fuses. The procedure varies amongst various makes, models, and years. Once in 'programming mode' one or more of the fob buttons is depressed to send the digital identity code to the car's onboard computer.

  7. Chinese bronze inscriptions - Wikipedia

    en.wikipedia.org/wiki/Chinese_bronze_inscriptions

    Chinese bronze inscriptions, also referred to as bronze script or bronzeware script, comprise Chinese writing made in several styles on ritual bronzes mainly during the Late Shang dynasty (c. 1250 – c. 1046 BC) and Western Zhou dynasty (c. 1046 – 771 BC). Types of bronzes include zhong bells and ding tripodal cauldrons. Early inscriptions ...

  8. Technology - Wikipedia

    en.wikipedia.org/wiki/Technology

    Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. [1] The word technology can also mean the products resulting from such efforts, [2] [3] including both tangible tools such as utensils or machines, and intangible ones such as software.

  9. Amazon Alexa - Wikipedia

    en.wikipedia.org/wiki/Amazon_Alexa

    Alexa can now pair with a Ring doorbell Pro and greet visitors and leave instructions about where to deliver packages. [51] As per Amazon, the recent surge in usage of smart home devices connected to Alexa has led to a corresponding 100% increase in requests to Alexa for controlling compatible home appliances like smart lights, fans, plugs, TVs ...