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–
Use
the
round
ground-prong
of
the
ac
plug
on
ac-operated
computers.
Grounding
requirements
Electrical
grounding
of
the
computer
is
required
for
operator
safety
and
correct
system
function.
Proper
grounding
of
the
electrical
outlet
can
be
verified
by
a
certified
electrician.
Safety
information
Introduction
21
