Calculator Resurrection

Chapter 1: The Joy of the Machine

The first time I saw a Curta, it was lying in a cardboard box at a flea market in the rust belt, nestled between a chipped ceramic rooster and a stack of yellowed National Geographics. The vendor had no idea what it was. He called it "some kind of old pepper grinder." It was caked in a film of grease and decades of pocket lint, the crank stiff, the numbers frozen in a dusty amber display. He wanted five dollars. I gave him ten, because I felt guilty, and also because I knew something he didn't: this little pepper grinder was a precision instrument with over six hundred individual parts, machined to tolerances that would make a modern watchmaker wince. It was a computer, in the truest sense of the word—a machine that could add, subtract, multiply, divide, and calculate square roots with a reliability that the early electronic giants, with their glowing vacuum tubes and room-sized footprints, could only dream of.

I took it home, set it on my kitchen table, and stared at it for an hour before I had the courage to touch it. That is the first thing you need to know about this hobby: it begins in fear. The fear of ruining something irreplaceable. The fear of a tiny spring launching into the far corners of a cluttered room, never to be seen again. The fear of your own clumsy fingers, which suddenly feel like oversized sausages when