对其文件系统访问进行虚拟化，它立刻就可以对.tar文件、老式磁带盘和只能通过虚拟专用网（VPN）访问的公司资源进行操作。
Virtualize its filesystem access and it immediately acts on .tar files, old tape reels, and corporate resources accessible only through a virtual private network (VPN).
因为这些系统通过纸带和磁带操作，所以通过那些介质表示的软件已经被重新包装成易于使用的文件。
Because these systems operated with paper tape and magnetic tapes, the software represented by those media has been repackaged into files for ease of use.
由于操作系统在磁带上不提供文件系统服务，应用程序必须决定如何使用数据块的数组。
Since the OS does not provide file system services, the application must decide how to use the array of blocks.
由于操作系统在磁带上不提供文件系统服务，应用程序必须决定如何使用数据块的数组。
Since the OS does not provide file system services, the application must decide how to use the array of blocks.
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