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[WD] Nanomagnetic Computers Are the Ultimate in Efficiency.

post #1 of 16
Thread Starter 


http://www.wired.com/wiredscience/20...tic-computers/

Quote:
“They’re actually maximally efficient, in the sense that they use up only the energy that is theoretically required to carry out a computation,” said electrical engineer Brian Lambson of the University of California at Berkeley. The results will be published in Physical Review Letters.

Nanomagnetic chips are made from material similar to refrigerator magnets, etched with rows of rectangles. Each rectangle measures about 100 nanometers on a side and has magnetic poles. Information is stored in how they point: One configuration is 1, the other is 0. Because the magnets are so small, they can be packed close enough for their magnetic fields to interact. Information passes without any physical changes to the chip.

“Magnetic systems are unique in that they have no moving parts,” Lambson said. “Moving parts are really what dissipate a lot of energy in physical systems, whether it’s moving electrons or physical material.”
Keep in mind, the research they've done so far is still a bit rough.
I suggest everybody read the results when they come out, probably in a few weeks.
post #2 of 16
Interesting stuff, good find
post #3 of 16
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post #4 of 16
Interesting, looking forward to some big advances in computer tech soon, got optics, quantum computing and now magnets.
post #5 of 16
Dont forget about phase change memory!
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post #6 of 16
Neat and all, but what they're completely side-stepping is the fact that you still need to read and write from whatever chip this is. So what if it stores data with the most minimal amount of energy needed to retain that data? you're still going to need something to interpret magnetic fields (i.e., an electromagnet of some sort), which will still require lots of energy, and you'll still be pushing lots of electrons. Just not in the same way as we currently do. Not all that interesting TBH.
    
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post #7 of 16
Quote:
Originally Posted by guyladouche View Post
Neat and all, but what they're completely side-stepping is the fact that you still need to read and write from whatever chip this is. So what if it stores data with the most minimal amount of energy needed to retain that data? you're still going to need something to interpret magnetic fields (i.e., an electromagnet of some sort), which will still require lots of energy, and you'll still be pushing lots of electrons. Just not in the same way as we currently do. Not all that interesting TBH.

are you sure you know what you are talking about????
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post #8 of 16
Quote:
Originally Posted by Fr0sty View Post
are you sure you know what you are talking about????
Pretty sure.
    
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post #9 of 16
Thread Starter 
Quote:
Originally Posted by Fr0sty View Post
are you sure you know what you are talking about????
He does.

GLD is one smart cookie, trust me.
post #10 of 16
Quote:
Originally Posted by frickfrock99 View Post
He does.

GLD is one smart cookie, trust me.
Sarcasm is the protest of the weak! Just kidding!

However, I guess in retrospect I did crap on the idea more than necessary. I think all advancements are good. However, I think it's premature to make the claims that a near-Laudner efficiency chip can be made to a practical standpoint. Still an exciting area of work, but I think it's still far from application--though they stated as much in the article.
    
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