My Very First Computer
My very first computer was a sliderule. They were quite good and fast for multiplying, dividing, and trigonometry. The C and D scales were especially useful. I'm quite sure I could find that when I was proficient in using one that I could multiply or divide two numbers faster than someone using a calculator.
I've attached 3 sample pictures so that those that are unfamiliar with a sliderule know what one looks like.
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