read or write speed

Drive Index: is a composite figure representing an overall performance rating based o ­ n the highest read or write speed across the whole disk.

驱动器索引：是一种复合的数字较整体性能评价的基础上最高的读取或写入速度在整个磁盘。

互联网摘选

The mode of PIO is adopted in the write and read of dates transferred to or from the hard disk, as a result, the speed of the transfers and the difficulty for programming are matched.

为了提高硬盘存取数据的速度同时方便硬盘控制程序的编制，文中采用PIO模式进行块操作的读写方法，从而大大提高了硬盘读写的速度。

互联网摘选