Dave - Real name is in signature
As for your external cloud backup drive.
Well where do we start with such amazing marketing methods!!
In network terms, 'the cloud' always referred to anything outside your internal network, something you had no control over.
More recently with the advent of 'cloud computing' and 'cloud storage', this came a little closer to having more control over, but still not as fully as if it were under your direct control.
So what are these 'clouds'??
Well as an example, iCloud, Dropbox, Skydrive, etc are all areas where you can store your personal data and be able to access it from anywhere with an internet connection. These are 'true' cloud based solutions.
Recently though as you've found out, external hard drives are becoming available (and this statement may not ring true to all of them), which claim to be cloud backup drives!!
What are they? Well for a vast majority of the newer ones, they are essentially NAS boxes that attach to your router (directly or indirectly), and give you access to the content on them from anywhere with an internet connection (and also to anyone else who you give access to).
It's the only logical reason why the would cost so much more then say a normal external hard drive - you're paying for basically a route from anywhere in the world direct to your hard drive at home!
Sorry for the long winded answer - its close to 01:00 here and I'm blabbering on!!
Course, happy to help answer anymore IT related questions, but for now, I'm gonna head for my own cloud in the sky and catch a few winks
