启动盘

例句：

1. 1. The computer needs to be booted up with the CD-ROM drive.
   电脑需要用CD-ROM驱动器启动。
2. 2. The engineer used a special disk as the startup disk for the new software.
   工程师使用一个特殊的磁盘作为新软件的启动盘。
3. 3. The laptop's hard drive is the startup disk for the operating system.
   笔记本电脑的硬盘是操作系统的启动盘。