Maniac

Maniac was Los Alamos Nuclear Testing Facility's resident supercomputer in 2064.

Background
Maniac was never mentioned in the |text of the Reservation design document; however, a pre-War photograph of Dr. Clark and Dr. Sebastian included in the document cites MANIAC as one of their finest colleagues.

Behind the scenes
Several real life computers have been called MANIAC (an acronym for Mathematical Analyzer, Numerical Integrator, and Computer or Mathematical Analyzer, Numerator, Integrator, and Computer), two of these were built for the Los Alamos Nuclear Testing Facility.