磁带驱动器是顺序存取设备，会通过 register_chrdev_region 将自身注册为字符设备。
The tape driver is a sequential access device and registers itself as a character device through register_chrdev_region.
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。
You can store data on secondary storage devices, such as a direct access storage device or magnetic tape volume.
数据由快速存取存储器（磁盘）传送到存取速度较低的存储器（磁带）的过程。
The movement of data from fast-access storage ( magnetic disc ) to storage of lower access speed ( magnetic tape ).
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