使用管道可以让其他程序处理数据，而不必将这些数据保存到文件或磁带设备上。
Using pipes, the data can be processed by other programs without requiring that the data be saved in files or tape devices.
在对应用程序文件系统应用更新时，要先执行备份，很可能是将数据备份到磁带。
When applying updates to an application filesystem, a backup would be taken first, most probably to tape.
系统中有一个可执行文件 /tvbin/text2osd，它听起来像是一个将数据作为屏幕显示写到输出磁带上的应用程序。
There's an executable named /tvbin/text2osd, which sounds suspiciously like an application to write words on the output video as an on-screen display.
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