IBM wants to kill the hard drive it invented

We don't need to think about it; it just has to work. But whether it's a solid-state or hard disk drive, conventional storage solutions have their limitations -- namely, speed, rewritability and durability. A team at IBM Research's Almaden facility in California has a cure for all of that and it's called "racetrack memory."

Stuart Parkin, an IBM fellow heading up research into the field of magnetoelectronics andspintronics, is the man overseeing the creation of this new storage solution that's poised to kill your hard drive. Which is ironic because IBM invented the HDD back in the mid-1950s. So what exactly is racetrack memory? Imagine a series of tiny magnets, all built one atomic layer at a time by Parkin's team, that can be moved up and down along a (figurative) racetrack "in a highly coherent fashion" with the application of a simple current. That arrangement not only guarantees increased read/write speeds, but it's also cheaper to produce, is incredibly resilient due to the lack of moving parts and boosts storage capacity significantly.

http://www.engadget.com/2014/09/04/ibm-wants-to-kill-the-hard-drive/