TDK left us all gaping when it announced its new venture of cramming 260 GB data in a 1.8 inch hard disk drive at CEATEC. This was achieved by attaining a surface recording density of 803 gigabits per square inch using their prototype TMR head along with Magnesium Oxide insulating film and discrete track medium. As far as we know, the previous best was Toshiba with around 380 gigabits/ sqr inch.

We got a feeling that we will be able to achieve up to 1Tbit/inch2 with TMR elements,

said Katsumichi Tagami, director of the SQ Research Center, TDK Technology Group. Reportedly, they have used perpendicular magnetic recording techniques to achieve this revolutionary stage.
All said and done, TDK deserves a round of applause if with time we get to know about its productivity and longevity. We can see this phase as the ultimate nano-ing of devices and its not far when we will reach a stage where your pocket will be too large a space for a whole computer!