Commodore 64 Reference
An oldie but a good system, the Commodore 64 was a very popular system back in the day and had pretty much everything the user would need at the time, including an interpreter, a disk driver to store data and a simple command method to load. The Commodore 64 has been stripped down, emulated and exploited for many uses. I hope you have as much fun as I did researching this historical gem.
Pdf Reference Guide