Can a Commodore 1541 disk drive be used as a general purpose computer? - YouTube

I modified the KIM-1 kernal to run on a bone stock Commodore 1541 disk drive. That's right -- zero hardware modifications. I'll walk you through the theory behind this, and everything I needed to do to make it work, then I'll show you a Hello World example in both BASIC and machine language running on a Commodore 1541 disk drive.