Drive Advance Fuels Terabyte Era

A single hard drive with four terabytes of storage (4TB) could be a reality by 2011, thanks to a nanotechnology breakthrough by Japanese firm Hitachi. The company has successfully managed to shrink the read-write head of a hard drive to two thousand times smaller than the width of a human hair. The smaller head can read greater densities of data stored on the disk. Hitachi said the advance would fuel the terabyte era, with a 4TB drive able to hold more than a million songs