Slide Rules & Electronic Tools
I remember the first one I ever saw. It was 1972, and I was a sophomore in college. I was walking across campus when I spotted a nerd coming out of the engineering building with something strapped to his hip, like a gunfighter in a John Wayne movie. I’m sure he thought he was a NASA scientist. It was big. It was clunky. It was heavy. But that contraption represented one of the first steps in how our world was about to change. It was a Texas Instruments calculator, known officially as a TI 2500 Datamath. Up until then, everybody did calculations by hand or used a slide rule, which was an amazing invention in its own right. Once you learned how to operate it, you could multiply and divide much faster than doing it on notebook paper. For those of you who have never seen or even heard of this device (which includes millennials, and all who came after them), a slide rule looked like a mutated ruler. It was a long, narrow instrument, usually made of wood or plastic, with nu...