Another popular choice is to back up to an external hard drive.

An external drive is easily moved from one computer to another.

But with two external drives, that isn't an issue at all.

It was immediately obvious that the external hard drive had a problem.

Point number two, because these units seem like an external drive, they're all too easy not to take seriously.

I keep video projects on external drives and I'm small time.

We're backing up our photos to an external hard drive.

Prices vary, but it is possible to find a 250-gigabyte external drive for $150 or less on the Web.

An external drive could be connected to a port on the back.

You can even - I didn't know this, but somebody sent me a note and said it works with external drives, too.