Ever wonder what a 1 Gigabyte hard disk looked like in the 70s? Well now you know. It weighed so much it had to have a special floor and case to be mounted in. It's case looked like a refrigerator.
Now 1 Gigabyte is the size of a postage stamp (and can actually be made much smaller). My how times have changed.
This is good news. I can't imagine how my 8GB iPhone would work, since I would need an 18-wheeler to carry it in.
Check out a brief history of the hard drive for more information.