Types of superchargers

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technically the word supercharger encompasses both engine and exhaust driven "turbochargers" as a device wich compresses intake air for an engine originally turbochargers where turbine-superchargers but that was ghey so we call them turbochargers.

edit: just wanted to throw out that a centrifugal supercharger is in every way inferior to a a proper turbocharger setup where as positive displacement supercharger far excced the low rpm output of a turbo charger but but lose on the top end.