IBM invented the Hard Disk Drives back in the mid-1950s and now they are working on an alternative which can kill the hard drives.
Today all the conventional data storage is mainly done in two types of devices, magnetic hard disks and solid state drives. Magnetic Hard Disks have their own limitations: speed, durability and re-writability. On the other hand SSD allows rapid data transfer but its cost is much much higher.
Researchers at IBM Almaden Research Center led by Stuart Parkin are working on a totally new storage-memory technology called Racetrack Memory which promises high read/write speeds, increased storage capability and lesser production cost.
How it works?
Racetrack memory uses a spin-coherent electric current to move magnetic domains along a nanoscopic permalloy wire about 200 nm across and 100 nm thick. As current is passed through the wire, the domains pass by magnetic read/write heads positioned near the wire, which alter the domains to record patterns of bits.
See Also : IBM unveils Brain-Like chip : TrueNorth chip
“Already, Parkin’s team at IBM has been able to demonstrate the advantages of this new storage solution by applying it to existing flash memory chips. His team was able to generate about “250 of these magnetic domain walls in one racetrack” which, when applied to flash, could increase storage capacity by a factor of 100. And, what’s more, it won’t ever wear out, meaning it’d be infinitely rewritable. That’s something flash memory simply cannot do in its current state.”
Watch the video below to understand the perks of Racetrack Memory:
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