The first inventor of the calculating machine was Blaise Pascal.
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Blaise Pascal and Wilhelm Schickard one of those
Archimedes
arithmetic machine
John Napier's calculating machine invention is called "Napier's Bones."
the person who invented it was Hugo Caisaguano
lathe machine hour
pictures of calculating devices with their inventors
The very first calculating "machine" was human hands and fingers. The abacus was next in about 300 BC.
Elijah McCoy, a black inventor, did not invent the washing machine. The modern washing machine was invented by James King in 1851.
he filed the patent for his first calculating machine in 1885 then improved one in in 1892
Hiram Maxim
Alexander Bain