BANGALORE, 18 November 2006 — Is it time to say goodbye to CDs, DVDs, Zip drives? A Kerala student has developed a technique for portable data whereby the data can now be stored on ordinary paper. And to boot, larger amounts of data can be had on lesser space. The immediate question that pops into the mind is how to retrieve the data. Will it be as easy as feeding a floppy disc or CD into the drive and having it on the monitor? Perhaps it will be much easier than that. The piece of paper or even plastic sheet...