Computer Hardware
ESD damage can be caused by:

Repeated sags in current supplied from outlets
Touching metal on the chasis
Placing an IC on a grounded mat
Placing an IC in a non-conductive plastic bag
None of these

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Computer Hardware
A brownout is defined as:

alternating power out, power on lasting a few minutes
a slightly decreased voltage lasting from seconds to minutes or more
a slightly elevated voltage lasting from seconds to minutes or more
complete power out lasting a few minutes
has nothing to do with electricity

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