The objects below comprise “Collection Calculant” - a collection of “things that count”. (Click on photos to enlarge; click on text for fuller item description.)
For a more detailed collection objects list click here. For their story in context of a history of calculation click here.
Objects
1. Beginnings
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2. Conversion and Reckoner Devices
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3. Sectors
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4. Slide Rules
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5. Simple adder/subtractors
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6. Early keyboard operated adders
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7. Stepped-drum Arithmometers
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8. Direct Multiplying & Proportional Rack Calculators
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Millionaire | Mini: PHP-GD image library not found. Exiting. | Mini: PHP-GD image library not found. Exiting. |
9. Pinwheel Calculators
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10. Comptometers
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11. Curta and Alpina (step drum miniaturised calculators)
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12. From electromechanical to electronic calculation
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Hertstark badged | Mini: PHP-GD image library not found. Exiting. | Mini: PHP-GD image library not found. Exiting. | Mini: PHP-GD image library not found. Exiting. | Mini: PHP-GD image library not found. Exiting. |
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Ephemerae
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