(NEW SCIENTIST) — COMPUTER virus destroyed your hard drive? Don't worry, some day bacteria might build you a bigger and better one.
Hard drives store data on discs coated with a metallic film divided into tiny magnetic regions, each of which stores a single bit - the more regions you can squeeze on to a disc, the bigger the capacity. Now, a team at the University of Leeds, UK, have borrowed a trick from nature to build a new kind of hard drive.
