Key Item

Key Item is a 1975 science-fiction short story by Isaac Asimov.
Part of the Multivac series, it first appeared in the July 1968 issue of Fantasy and Science Fiction. It was later collected in 1975's Buy Jupiter and Other Stories.
==Plot Summary==
Multivac refuses to follow a command program because something is missing. Can the technicians discover the key item?
==See Also==
List of short stories by Isaac Asimov
es:Factor clave
Category:Fiction
Category:Short Story
Category:Multivac series