I used to think all the data in a video-game cartridge was written on the little metal contacts at the end, where the slightest touch of a finger could erase it. That big hunk of plastic behind the contacts was only there to give you a good grip on the cartridge when you inserted or ejected it. Same with diskettes--I thought the data was stored on the shutter at the bottom.
A childhood belief about computer games

others believed things like this
- I used to think that when people were taking their contacts out that they were taking their eyeball out :) — Jen
- I used to think that partridge in a pear tree was "cartridge" in a pear tree(christmas song)— Erica
- When I was a child I used to believe that when I played video games my real world changed like the game. — J
- I used to believe that If I stuck my finger really far inside of my belly button I could touch my insides.Anon
- my brother (10) still believes that if you stick your finger to far up your nose you can touch your brainAnon
- I used to believe pee was stored in your stomach and poo was stored in your back.— Rob