Abacus: the first calculator: An abstract picture of an abacus. It was invented in China and is considered one of the first calculators around the world.

Abacus: the first calculator

meZaeUO
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Abacus: the first calculator: An abstract picture of an abacus. It was invented in China and is considered one of the first calculators around the world.
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Abacus: the first calculator: An abstract picture of an abacus. It was invented in China and is considered one of the first calculators around the world.

May 5, 2014 Yengineer

Using this great image in presentation on Science, Technology, Engineering, and Mathematics (STEM) education. Thank you for making it available!

January 13, 2010 saavem

Scientific calculator!

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Dimensions: 3840px * 2160px
Published: January - 12 - 2010
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