Calculating Devices
![Calculating Devices](https://www.whipplemuseum.cam.ac.uk/sites/www.whipplemuseum.cam.ac.uk/files/styles/inline/public/1658_1.jpg?itok=8INw4iLF)
The world's oldest scientific instruments were developed to aid calculation. For hundreds of years, ruler-like tools were the most common calculating devices and their use persisted alongside mechanical innovations that automated simple mathematical procedures.
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History of Computer Early Calculating Devices