Domino Computing

Matt Parker built a domino adder of four or five bits out of 10,000 dominos.  Inspired by this, we offer a smaller scale activity that gets across some of the key points–and more.

We’ll build gates and describe their behavior with truth tables.  See the handout for additional activities.

The following video shows the execution of a “p and not q” gate.  Both input dominoes are pressed, and one of the domino chains prevents the other from propagating:

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