True story. When I was around eight years old, my dad brought home a surplus calculator like this one. I opened up this side first, and was confronted with this view of apparently infinite complexity.

I jiggled the controls a bit, tried to figure it out for about an hour, and when I couldn't make heads or tails of it, I took a hammer to the thing.

Don't do that.

In part, this teardown is an apology for that moment of violence. It was the 70s. I'm sure disco must be partially to blame.