molly-guard: /mol'ee-gard/ n. [University of Illinois] A shield
to prevent tripping of some Big Red Switch by clumsy or ignorant
hands. Originally used of the plexiglass covers improvised for the
BRS on an IBM 4341 after a programmer's toddler daughter (named
Molly) frobbed it twice in one day. Later generalized to covers
over stop/reset switches on disk drives and networking equipment.
In hardware catalogues, you'll see the much less interesting
description "guarded button".
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