Re: Paper tape anyone?
If you can setup the mechanical side of things (reels and a motor), you could read in punched paper tape using a webcam and some software. Or perhaps you could dismantle a scanner and mate the parts to an Arduino.
A friend of mine has a Player Piano, which still plays back 'software' laid down in the 1930s (Fats Waller songs). If you visit a steam fair, you may see a steam orchestra playing even older punched card music.
During WWII, Hollywood star Hedy Lamar invented a frequency-hopping mechanism for controlling torpedos (so the signal couldn't be jammed by the enemy) based on a minuturised Player Piano mechanism.