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Embedded2.3. Storage Considerations
One of the most challenging aspects of embedded systems is that most embedded systems have limited physical resources. Although the Pentium 4 machine on your desktop might have 180GB of hard drive space, it is not uncommon to find embedded systems with a fraction of that amount. In many cases, the hard drive is typically replaced by smaller and less expensive nonvolatile storage devices. Hard drives are bulky, have rotating parts, are sensitive to physical shock, and require multiple power supply voltages, which makes them unsuitable for many embedded systems. 2.3.1. Flash Memory Nearly everyone is familiar with CompactFlash modules
[5]

used in a wide variety of

consumer devices, such as digital cameras and PDAs (both great examples of embedded systems). These……
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嵌入LINUX内幕
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