访问操作系统提供的内存地址要比读取(物理内存中的)常驻地址慢很多，因为必须硬盘驱动器加载它。

Accessing a memory address that has been swapped is a lot slower than reading a resident (in physical memory) address because it must be loaded from the hard drive.

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请选择用于检测驱动器的总线地址(使用箭头键)。

Select the bus address used to detect the drive (use arrow keys).

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SP505还包括一个带有驱动器和接收器地址译码器的锁存使能管脚。

The SP505 also includes a latch enable pin with the driver and receiver address decoder.

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