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What is the first mass produced calculator?
The first mass-produced mechanical calculator was made by Charles Xavier Thomas, around 1920. The first mass-produced electronic calculator was probably the Sharp QT-8D, mass-produced in 1969.
When was the first mechanical clock invented?
It was invented in Middle Ages. Around 1300 AD.
Who invented the first handheld calculator?
The Curta calculator was the first handheld calculator. It was invented during WW2 by a prisoner in a Nazi concentration camp named Curta. The first model was intended as a gift for Hitler, but the war ended too soon Curta's were produced from about 1947 to 1976, when electronic handheld calculators killed Curta's market.
5 periods of pre mechanical history?
Writing and AlphabetsPaper and PensBooks and LibrariesThe First Numbering SystemThe First Calculator: The Abacus
Was the antikythera mechanism really the first computer?
it was an astronomical calculator. A form of mechanical analog computer. The nordon bombsight was also a form of mechanical analog computer.
