A solid example of file fragmentation with a single hard drive can be shown simply by running a disk defragmenter on your own computer.

比如，只需在计算机上运行一个磁盘碎片整理程序就能看到单个硬盘的文件碎片。

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Eraser is a file destruction tool allows you to completely delete or erase sensitive data from your hard drive, flash drive or other attached disk in an attempt to make the file data unrecoverable.

橡皮擦是一个文件破坏的工具可以让你彻底删除或擦除，企图使该文件无法恢复数据从硬盘驱动器，闪存驱动器或其它连接的磁盘敏感数据。

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A few different tricks prevent your hard drive from working unnecessarily often in Disk Power Management (decreasing noise level as a nice side effect).

硬盘电源管理给出了一些技巧，使硬盘在不必要的时候不工作，而且还能减少噪音。

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