英语语法分析

Rename the autoexec.bat file to keep it as a backup on the floppy for later.

重新命名autoexec . bat文件，将其作为软盘上的备份，供以后使用。

Change the autoexec.bat file to automatically update the Broadcom firmware in unattended mode, and turn off the computer when it finishes.

修改autoexec . bat文件，用无人参与模式自动更新broadcom固件，并在更新完成时自动关闭计算机。