Hard disks run into similar problems as storage densities rise.

Moreover, the disk drive industry is in a period of intense competition based on the rapidly increasing storage density advances.

And, really, it's hard to see exactly where the current demand for a 1000x increase in storage density is right now.

In computers, storage density is how much data can fit on disks in relation to their physical size.

Additional research is needed to increase storage density and reduce data writing power demands.

When the first 340-megabyte Microdrive was introduced a year ago, it had a storage density of 5.04 billion bits a square inch.

This depth arrangement greatly reduces aisle space and increases storage density.

These were more practical, as storage density in batteries was at this time very low.

The smaller the bit cells are, the better the storage density of the medium is.

But the industry has also been driven by the hard disk-drive industry's ability to increase storage density by about 60 percent each year since 1991.