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domino computer

n. A mechanical computer built using domino tiles to represent logical operators.

Wikipedia
Domino computer

A domino computer is a mechanical computer built using dominoes to represent mechanical amplification or logic gating of digital signals. Because of the existence of multiple schemes, domino computer will be used in this article as a collective noun, denoting any particular scheme that uses the mentioned base phenomenon (of domino sequences) for building machines equivalent to a computer. This choice of terminology may be somewhat arbitrary, because only few resources write on this topic.