Greatest mechanical calculating devices of all time

A swift rundown of some great innovations in calculation from Jason Weisberger on BoingBoing:

Mechanical calculators are fascinating. They represent the early ingenuity and groundbreaking prowess that paved the way for modern computing. While the iPhone or Android device you are likely reading this on is exponentially more powerful and useful, these devices are where it all began! Mechanical calculators demonstrate the incredible progression of technological innovation and highlight the human drive to solve problems and improve efficiency in mathematical computations.

See them all!

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