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  2. Smoke detector - Wikipedia

    en.wikipedia.org/wiki/Smoke_detector

    A smoke detector is a device that senses smoke, typically as an indicator of fire. Smoke detectors/Alarms are usually housed in plastic enclosures, typically shaped like a disk about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary. Smoke can be detected either optically ( photoelectric) or by physical ...

  3. Fire alarm system - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_system

    A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices ...

  4. Trump derangement syndrome - Wikipedia

    en.wikipedia.org/wiki/Trump_derangement_syndrome

    Trump derangement syndrome ( TDS) is a pejorative term, usually for criticism or negative reactions to former United States president Donald Trump that are perceived to be irrational and to have little regard towards Trump's actual policy positions, or actions undertaken by his administration. [1] The term has mainly been used by Trump ...

  5. Carbon monoxide detector - Wikipedia

    en.wikipedia.org/wiki/Carbon_monoxide_detector

    A carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas to prevent carbon monoxide poisoning. In the late 1990s Underwriters Laboratories changed the definition of a single station CO detector with a sound device to carbon monoxide (CO) alarm. This applies to all CO safety alarms that meet ...

  6. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    Manual fire alarm activation. An activated manual call point in Japan. Telephone jacks are visible beneath the open cover. Manual fire alarm activation is the process of triggering a fire alarm through a call point, pull station, or other device. This usually causes the alarm to sound the evacuation signal for the relevant building or zone.

  7. General Comprehensive Operating System - Wikipedia

    en.wikipedia.org/wiki/General_Comprehensive...

    General Comprehensive Operating System ( GCOS, / ˈdʒiːkoʊs /; originally GECOS, General Electric Comprehensive Operating Supervisor) [a] is a family of operating systems oriented toward the 36-bit GE-600 series [1] and Honeywell 6000 series [2] mainframe computers . The original version of GCOS was developed by General Electric beginning in ...

  8. Telephone and Data Systems - Wikipedia

    en.wikipedia.org/wiki/Telephone_and_Data_Systems

    Telephone and Data Systems, Inc. is a Chicago -based telecommunications service company providing wireless products and services; cable and wireline broadband, TV and voice services; and hosted and managed services to approximately 6 million customers nationwide through its business units TDS Telecom and U.S. Cellular ( NYSE : USM) and OneNeck ...

  9. Naval Tactical Data System - Wikipedia

    en.wikipedia.org/wiki/Naval_Tactical_Data_System

    Naval Tactical Data System ( NTDS) was a computerized information processing system developed by the United States Navy in the 1950s and first deployed in the early 1960s for use in combat ships. It took reports from multiple sensors on different ships and collated it to produce a single unified map of the battlespace.

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