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  2. Public address system - Wikipedia

    en.wikipedia.org/wiki/Public_address_system

    A public address system (or PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music.

  3. Performance appraisal - Wikipedia

    en.wikipedia.org/wiki/Performance_appraisal

    Performance appraisal. A performance appraisal, also referred to as a performance review, performance evaluation, [1] (career) development discussion, [2] or employee appraisal, sometimes shortened to "PA", [a] is a periodic and systematic process whereby the job performance of an employee is documented and evaluated.

  4. Government of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Government_of_Pennsylvania

    Pittsburgh, Philadelphia, Harrisburg. The Government of the Commonwealth of Pennsylvania is the governmental structure of the Commonwealth of Pennsylvania as established by the Pennsylvania Constitution. It is composed of three branches: executive, legislative and judicial. The state capital of Pennsylvania is Harrisburg .

  5. Sound reinforcement system - Wikipedia

    en.wikipedia.org/wiki/Sound_reinforcement_system

    A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. [1] [2] In many situations, a sound reinforcement system is also ...

  6. Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania

    Pennsylvania ( / ˌpɛnsɪlˈveɪniə / ⓘ, lit. 'Penn's forest country' ), officially the Commonwealth of Pennsylvania [b] ( Pennsylvania Dutch: Pennsylvanie ), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.

  7. University of Pennsylvania Health System - Wikipedia

    en.wikipedia.org/wiki/University_of_Pennsylvania...

    The University of Pennsylvania Health System ( UPHS) is a major multi-hospital health system headquartered in Philadelphia, Pennsylvania. UPHS and the Perelman School of Medicine at the University of Pennsylvania together comprise Penn Medicine, a clinical and research entity of the University of Pennsylvania.

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