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Simple Computation Using Dominos

Posted by ryuzaki0 on from the houses-of-cards dept.

An anonymous reader writes "When silicon fails to beat Moores law, maybe dominos can help. This guy has created a half adder in dominos as a proof of concept for domino computation. If he intends to make a full domino computer he's going to need an awful lot of dominos."

7 of 131 comments (clear)

  1. Domino Logic by TheSexican · · Score: 4, Informative

    This really isn't such an interesting story at all. There is, in fact, a type of CMOS logic called Domino Logic. So nothing really suprising then.

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  2. Videos on YouTube by ikegami · · Score: 5, Informative

    The site might be down, but the videos are on YouTubte

    inputs = 0 & 1
    inputs = 1 & 0
    inputs = 1 & 1

  3. He Cheated! by haakondahl · · Score: 5, Informative

    Watch the 1+1 video, and you'll see that the stacked dominoes are actually glued together! No fair!


    Details: His right hand pushes over a domino chain which knocks out a link needed to complete the left-hand output. But in order to reach the chain for the left-hand output, he crosses the chain for the right-hand output, which then has a gap. This gap is bridged by GLUING a yellow domino on top of a red one, on top of a blue one.

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  4. Dominoes? by I+don't+want+to+spen · · Score: 3, Informative

    I thought most computers (or the people who run them anyway) ran on Dominoes, Pizza Hut ... (insert your country's major delivery pizza chain here)

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  5. Well, i know what would be fun to play with by TheCouchPotatoFamine · · Score: 2, Informative

    unfortunatly, i have a mac mini aka 4 shaders.. but this screensaver lets you use the video card to do it, so i imagine it's fun to look at.

    I just did a search, i didn't find anything about the largest. FWIW i'd LOVE to see the turing version in this screensaver :grin:

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    CS majors know the time/space tradeoff, but they never get taught the 3rd, crucial, tradeoff of the set: comprehension!
  6. Re:.5+.5=1? by Anonymous Coward · · Score: 1, Informative

    It's called a "half adder" because it doesn't have a carry bit input, only a carry bit output. With a half adder you can only add 1-bit numbers; with a full adder you can add arbitrary precision binary numbers (in serial).

  7. Re:.5+.5=1? by interiot · · Score: 2, Informative

    http://en.wikipedia.org/wiki/Adder_(electronics)#H alf_adder