MRAM

-- Magnetoresistive RAM (MRAM): MRAM is a non-volatile memory (NVM) that holds data magnetically and therefore no power is required to sustain the data. Unlike other memory technologies, data is not stored as electric charge of current flows. The data in MRAM is stored by means of change in resistance of MRAM cells when their magnetic orientation is switched. Therefore the state of the bit in MRAM is detected as a change in resistance.

http://www.tmcnet.com/usubmit/2007/05/29/2669299.htm


This would be great for a for Laptops and "Green" PC; Sometimes you cannot find a place to plug in (AC) when you are flying or someone else is using the AC outlet; having devices that use little power is sought-after by sharp PC shopper and supplier.