Technology

I can remember my first computer. It was in the late 80's and had a 286 processor 64k of ram with a 20 meg hard drive. This was in the early years when Windows was young so I did everything from the DOS command line. I was in computer geek heaven.
nowadays I have had a single file that is larger than 20 meg and my watch has more memory.
Today I bought a small memory chip at BestBuy for $39. It holds one gigabyte of data. That's a billion bytes. When I put it in my camera and turned it on, the counter said I could put a 1015 photographs on this chip that is the size of a postage stamp and just slightly thinker than a matchbook cover.
I know a good bit about computers but the more I learn, the more I realize I don't know squat.
And this is just the technology that they let us know about.....I'm not sure I want to know about the really advanced stuff.