Which of the following devices is used to keep irregular flows of alternating current electricity from damaging computer components?
Battery backup
Grounding floor mat
Spark arrester
Surge protector
Surge protector
Rationale: A surge protector is used to keep irregular flows of alternating current electricity from damaging computer components. It attempts to limit the voltage supplied to the computer. Many electrical power strips have built-in surge protection, but this is not as effective as dedicated surge protectors.
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