Magnetic tape: a sequential storage device that is widely used for back up storage.

磁带：广泛的用作后备贮存的顺序贮存装置。

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The file data file data storage device may include at least one of electronic storage, magnetic storage, and optical storage.

所述文件数据存储单元可以包括电子存储、磁存储和光存储中的至少一种。

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You can store data on secondary storage devices, such as a direct access storage device or magnetic tape volume.

你可以在辅助存储设备上存储数据，例如直接存取存储设备或者磁带。

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Aside from magnetic tape (which generally has a slower time to access information) there is no more cost effective storage device to keep all this content on than HDDs.

FORBES: Have Hard Disk Drives Peaked?