A New Way to Read Hard Disks

 I believe that technology is improving day by day and it has been made possible only because of constant need to improve speed and efficiency.

Researchers believe that the magneto-electric effect might be key to creating the sensors needed for ultra-high-capacity memory.

Data density on hard disks has roughly doubled every year for the past 30 years, and to keep up, researchers have made smaller and smaller sensors to read the tiny bits stored on a disk. Today's hard disks pack a mind-boggling amount of data--more than 200 gigabits in a square inch. But as the industry gears up for densities of up to one terabit per square inch, the sensors are reaching their physical limits.

"It could lead to much thinner and smaller read heads that are suitable for data densities as high as one terabit per square inch", says lead researcher Marian Vopsaroiu.

The new sensor would also use slightly less power than current read heads--an especially useful feature for laptops and MP3 players. And it could improve the speed of the reader. "You could read back data ten times faster," Vopsaroiu says. "Instead of one GHz, you can read at five to ten GHz."

Lets see how long this technology will remain in the market , I think soon companies would be coming up with  few more  latest technologies.