What if you want the safety and flexibility of actually booting from your portable hard drive?

如果你想要从移动硬盘启动的安全性和灵活性呢？

youdao

That's why I backup my emails on a regular basis to an external device, in my case a portable hard drive.

这就是为什么我备份我的电子邮件就定期向外部设备，在我的情况下，便携式硬盘驱动器。

youdao

Basically if you can get a bootable live CD version, you can use an external portable hard drive instead of a CD!

基本上如果能得到可以启动的live CD版本，就可以将它应用到外部可移动硬盘而不是CD ！

youdao

Another possibility is a portable hard drive, such as a microdrive, made by companies like Hitachi.

CNN: Mobile PCs can be risky on the road

Though many iPod owners use the device as a portable hard drive--which it is--the iPod was built for music.

FORBES: IPod Redux

Toshiba's Canvio Special Edition Portable Hard Drive provides users with spacious storage capacity and a complete, yet simple-to-use backup solution.

ENGADGET: Toshiba unveils 2TB Canvio Basics and Special Edition portable drives