Nourishing my hobby, I have been playing with cryptography on my favorite tool.
Now you can have perfect security for a file of up to 300 characters on the little calculator-computer.
If you happen to be interested, you will find the program at the usual place (isene.com).
I really enjoy programming the HP-41 🙂
And now that I have the newly created motherboard replacement (called the HP-41CL) from Monte Dalrymple (Systemyde), I will get to upgrade my HP-41 to massive memory and 50x speed. It’s X-Mas in August.