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Inventor of GMR Bids To Shake Up Storage, Again
Nrbelex writes "Stuart S. P. Parkin, an I.B.M. research fellow largely unknown outside a small fraternity of physicists, thinks he is poised to bring about a breakthrough that could increase the amount of data stored on a chip or a hard drive by a factor of a hundred. This is the man who pioneered exploiting the giant magnetoresistance effect in the 90s, causing disk storage to jump ahead of the Moore's Law curve. If he proves successful in developing 'racetrack memory,' he will create a universal computer memory, one that can potentially replace DRAM and flash memory chips, and make a 'disk drive on a chip' possible. It could begin to replace flash memory in three to five years, scientists say."
XenoPhage
Technological Musings
What? All of you? You're all using this man's technology right now. Accusations of this product being vaporware do not account for the man's track record (no pun intended). You should all give this man a little credit, okay?
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If it means my computer gets to look like that thing from TFA, then I'm SO in!
No. All peoples claims should be approached with a skeptic eye. What I will do is not discard this man as a crackpot immediately. Many men that have created great things also had crackpot ideas.
The Kruger Dunning explains most post on
My other account has a 3-digit UID.
If every 4mb of music you buy have costs $2, then your 16 Terrabyte Ipod would cost $4 million to fill up.
Extra capacity is useless if the cost of data is artificially inflated
If we can put a man on the moon, why can't we shoot people for Apollo-related non-sequiturs?
Five years! It's always Five Years!
By 2012 I expect to have, this super memory technology, solar cells with efficiency above 70% for pennies per watt, flying cars, paper thin televisions the size of my wall, fuel cell powered hybrid cars, batteries replaced by power cells that store more power, cost less, are infinitely rechargeable, and charge/discharge like capacitors -- plus several other things from the last few months of Slashdot.
Also the Mayan calendar will have expired, and the entire West Coast in to the Sierra Nevada mountains will be flooded, so I don't know how useful this all will be to me.
"It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
Imagine the social implications of the $50 5TB thumb drive...
"I was over at Jimmy's house yesterday and asked him to put some good stuff on my thumb drive. He gave me HD copies of the top 80 movies released in the past two years, plus 2000 of his favorite albums.
Meanwhile, a second thumb drive I keep clipped to my belt has been keeping an audio/video recording of the last 17 months of my life, nonstop."
Yeah, right.
They have finally perfected the abacus!
FTFA:
"His idea is to stand billions of ultrafine wire loops around the edge of a silicon chip -- hence the name racetrack -- and use electric current to slide infinitesimally small magnets up and down along each of the wires to be read and written as digital ones and zeros.
His research group is able to slide the tiny magnets along notched nanowires at speeds greater than 100 meters a second. Since the tiny magnetic domains have to travel only submolecular distances, it is possible to read and write magnetic regions with different polarization as quickly as a single nanosecond -- far faster than existing storage technologies."
What is really really old is new again, eh?
I can see it now - to erase your iPod, turn it on its side and shake - just like an Etch-a-Sketch!
Here's the concept, with a nice animated gif: http://www.almaden.ibm.com/spinaps/research/sd/?racetrack
The genius of the design is that the bits can be moved along the nanowires, allowing tens to hundreds of bits or maybe more to be accessed by only one reader. The readers can be fabricated in an array on a chip, and the wires can be hung from above, storing the data vertically. AFAIK they haven't yet gotten to the point of figuring out fabrication issues for the nanowire parts, like making a vertically oriented array and aligning them to readers. So far they have been working on getting the racetrack part working. That is, they have been working on using an electric current to shift magnetic domains longitudinally along a nanowire, and reading/writing the domains. And actually, the article seems to suggest that they are ignoring the 3-dimensional nanowire fabrication issues for now, and are going to make prototypes with the wires fabricated traditionally, 2-dimensionally, on a chip surface, which may still be competitive with Flash.
As for heat issues, Hopefully the amount of current necessary will be small and thus the wires themselves will generate little heat. I would imagine that this design would have fewer transistors than, say, a DRAM, since the transistors will not be storing the data themselves. The transistors remain 2-dimensional, only on the chip surface. The wires are the only 3-dimensional part.
main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
I have a truly marvelous proof of this proposition which this 50TB hard drive is too small to contain.
What makes this, and some other potential memory technologies, so interesting is that it would have the mass storage and non volatility of harddrives, the solid state of flash, and the speed of DRAM, or even exceeding that of current techs.
This is interesting not because its "more, better, faster" but because it can completely change the way computers work. Imagine simply not needing all the storage tiers we currently have... disks, harddrive, flash, DRAM, cache... imagine something big enough and fast enough to cover it all. A CPU and this memory, and nothing else. It could mean big changes to your operating system. Imagine just not needing to load and save things anymore. Imagine not needing elaborate schemes like virtual memory paging, harddrive caching, file systems, or even needing to compress things as often. There's all kinds of overhead and mechanisms in our OS's that are currently needed to deal with all the different storage hardware and their limitations.
If this memory can work fast enough, it could even change the way CPU's are designed. It could change almost everything.
-- Senior Software Engineer, Attorney appearance services, locallawyerapp.com.