What’s flash memory? In simplest terms, they’re chips that can be electrically erased and reprogrammed over and over. Flash memory has no moving parts, as do hard drives, and the chips are smaller and lighter, too. They also consume less power and transfer data faster than CDs and DVDs.

Need it even simpler? Flash memory allows you to keep songs in your iPod, photos in your digital camera and critical information in thousands of other consumer and industrial devices, from car engines to advanced avionics devices.