In practice, buffering may occur at various other levels, such as on the hard disk itself, the controller, or the kernel disk drive device driver, so ours may not make much of a difference.
实际上，缓冲可能发生在其它不同的级别，例如硬盘本身、控制器或内核磁盘驱动设备驱动程序，所以我们的工作可能对性能影响不大。
There are several modules both used in video recorder and video player, such as: hard disk driver module, file system module and OSD module.
硬盘节目录制与硬盘节目回放功能中存在功能相同的模块，例如：硬盘驱动模块、文件系统模块、OSD菜单显示模块等。
They have applied widely in the systems such as mobile communications system, hard disk driver system and other fields.
它们已经在移动通信系统，硬盘驱动系统等领域得到了广泛的应用。
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