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Posers and Puzzles

Posers and Puzzles

  1. Subscriber sonhouse
    Fast and Curious
    13 Jan '06 12:22
    http://www.newscientist.com/article.ns?id=dn8575
    Now, nanomagnetic logic gates! They talk about a gate called a
    'majority inverter'. Anyone familiar with it? I know all about the
    normal logic cells, And, Nand, Or, Nor, Xor, Xand, and so forth but
    this one is a new one for me. Majority inverter, takes say, 6 inputs
    and if any four go to ones, the whole thing inverts?
  2. 13 Jan '06 14:53
    Actually, the article implies that you need both NAND and NOR to create other logic gates. You only really need either of them. :-)

    The concept of nanomagnetic logic gates look very interesting though.
  3. Subscriber sonhouse
    Fast and Curious
    13 Jan '06 16:05
    Originally posted by lausey
    Actually, the article implies that you need both NAND and NOR to create other logic gates. You only really need either of them. :-)

    The concept of nanomagnetic logic gates look very interesting though.
    Thats true, you only need Nand OR Nor's, not both.
    I wonder if these new gates could have quantum logic tricks, that
    would simplify things even more: A quantum logic cell can
    be an AND gate and an OR gate and an XOR and XAND
    AT THE SAME TIME, not only that but simultaneously!
  4. 13 Jan '06 23:13
    I've known about this research (spintronics) for a while and it is certainly very interesting and has great potential. The difference is made by the fact that the electron spin is used as opposed to the electron charge to hold data. Like you said this does allow for quantum computation which makes the research even more potentially groundbreaking.