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CompactFlash or Memory Stick? Secure Digital or xD? If you're shopping for a digital camera, prepare to get familiar with these terms, which describe different versions of the small cards that act as the digital equivalent of film in this booming class of consumer gadget.

The wrist,'' says Bill Mitchell, "is the beachfront property on the body.'' Mitchell, one of Microsoft's big thinkers, has spent the last three years of his career figuring out how to plant the company's beach umbrella on that very space, so he has a tendency to say things like this.

In May, for the first time, the dollar value of laptop sales nudged past that of desktop computer sales - and it doesn't look to stop growing anytime soon.

Prices for flash memory cards - he little modules used by digital cameras, handheld organisers, MP3 players and cell phones to store pictures, music and other data - are headed down - way down.