IBM have issued a Press release stating that they have managed to store a=20 single data bit using only 12-atoms in a magnetic structure. Mind you the size of the equipment to perform this might be a bit off=20 putting at the moment. http://www.bbc.co.uk/news/technology-16543497 Colin -- cdb, 3/07/2009 =20 -- colin@btech-online.co.uk --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .