I've always been strangely intrigued by these old-school copy protection systems. It was interesting so see all the novel ideas the companies would come up with

I've always been strangely intrigued by these old-school copy protection systems. It was interesting so see all the novel ideas the companies would come up with. I especially remember playing around with those code-wheels when I was a kid. Here's an entertaining little video with a bit more information on the subject: https://www.youtube.com/watch?v=HjEbpMgiL7U https://www.youtube.com/watch?v=HjEbpMgiL7U