We know that flash memory is a special type of memory chip
that combines the best features of ram and ram. Like ram, memory lets a user or
program access data randomly. Also like ram, flash memory lets you over-write
any or all of its contents at any time. Like rom, flash is nonvolatile, so data
is retained even when power is off.
Flash memory has many users. For example, it is commonly
used in digital cameras and multimedia players such as mp3 players. A new type
of storage device for pcs, called the flash memory driver, is about the size of
a car key seeing figure 5a.21. In fact, many users carry a flash memory driver
on their key chain. These tiny devices usually connect to a computer’s USB of
fire wire port and can store 256 Mb or more of data.
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