I still remember the first time I heard the term "gigabyte" - and remember thinking "man, that's a lot of disk space". Now you can blow multiple gigs in one sitting.
I remember that 10-meg winchester drive that was bigger than a dictionary and now I see those USB drives with 512 meg that are smaller than a Bic lighter and I marvel at the changes.
I have seen the 8" floppies, but all of the computers I used had the 'small' 5.25 floppies.