Although there are several different types of card in common use, they all work in much the same way. They contain chips of a type of computer memory called Flash memory, a technology first developed by Toshiba in the early 1980s. The main advantage with Flash memory is that it can store data for very long periods without being connected to a power supply (it is non-volatile). In fact modern memory cards can potentially store data for as long as 10 years without degradation..
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How It Works - Memory Cards
Posted on Tuesday, Jun 26 2007 @ 06:06 CEST by Thomas De Maesschalck