Image Storage
Film combines two discrete functions—it is both a sensing and storage medium. A digital camera separates the two functions, leaving you with the need for a storage system. Most digital cameras use flash memory to store the images they capture.
Inexpensive cameras have only built-in memory, which allows them to hold a finite number of images—typically about a dozen—before you need to download them to a computer or printer.
Better digital cameras use a memory card of some type. These cards are removable so that you can quickly exchange cards to take more pictures, much like loading a new roll of film. In fact, some vendors of memory cards call them digital film, which they are not. You can also slide out a memory card and slide it ...
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