为了适应装有可启动光盘的电脑，一些BIOS还允许将光驱指定为启动驱动器。
In order to adapt to a bootable CD-ROM with the computer, some BIOS will also allow the drive designated as the boot drive.
下载并刻录这个ISO，放入光驱，就可以重启你的电脑了。
Download and burn the ISO, place it in your CD-ROM drive, and reboot your machine.
iMac也是第一个用光驱完全取代3.5寸软驱的电脑。
The iMac is also the first computer to dispense with the previously ubiquitous 3.5-inch floppy drive in favor of a CD-ROM drive.
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