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Abacuses, a calculator's predecessor was used as early as 2400 B.C. A German named Wilhelm Schickard invented the first digital mechanical calculator in 1623. The first smaller calculators, called comptometers were invented in 1884 by a U. S. citizen named Dorr E. Felt. There were numerous other upgrades after this including one built into a desk, made by the Japanese, but that is all I wish to say.
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Who invented the abacus when it was invented why it was invented and who invented it?
jv
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invented in 500BC before electricity was invented
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Gloria Mejia invented it and she invented it in 1998
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The CD was invented in 2001 Thomas clamps invented it.
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Yes, the computer is invented.
What is the past participle of invented?
Invented is the past participle of the verb invent. verb /past /past participle = invent /invented /invented
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when was sprite invented ! == == when was sprite invented ! == ==
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The Chinese invented the Rudder.it was invented by the Chinese
Who invented the first quadbike?
how invented the quad bike how invented the quad bike how invented the quad bike
Who invented and when were the clothes invented?
Clothes were invented 1000ends of years ago God first invented the clothes
