I remember my first computer had a 2 Megabyte hard drive. Megabyte sounded so cool...mega...BIG (a lot bigger than Kilobyte).
Then my many Megabytes weren't enough. I started needing GIGAbytes. If you wanted bigger, you needed GIGS and lots of them.
What's next? TERABYTES! One Trillion Bytes. Just over a thousand Gigabytes.
Will we call them TERs or TERAs? I don't know, but I can't wait for that memory stick!