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power hit

power hit in Technology

(Or "power glitch") A sudden increase (spike) or decrease (drop-out) in the mains electricity supply. These can cause crashes and even permanent damage to computers. Computers and other electronic equipment should really include some kind of over-voltage protection in its mains input to prevent such damamge.
[Jargon File]

The Free On-line Dictionary of Computing, © Denis Howe 2010
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