IBM wants to kill the hard drive it invented

Saving files to memory is something that's supposed to be mostly invisible for the end user. 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."