know here all things of Calculator was invented by which scientist | Blaise Pascal discovered what ?
question : Electricity was invented or discovered by whom ?
answer : The famous scientist named Blaise Pascal was the inventor of Calculator in the year of 1642.
question : Blaise Pascal invented which thing and when ?
answer : In ‘1642’ year the well known scientist whose name is ‘ Blaise Pascal ‘ was the inventor of Calculator.
question : when and by whom Calculator was discovered ?
answer : Calculator was the discovery of Blaise Pascal which was discovered in 1642 year.
so in short we can say –
invention : Calculator
inventor : Blaise Pascal
year : 1642
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