Tag Archives: history of the computer

Old computer history

Early men used sticks and stones to count cattle. In 450 B.C. china invented Abacus, the first calculating device. Abacus was used to add and subtract the numbers. In 17th century, John Napier invented ‘Napier Bones’, Which was helpful in multiplication and division as well as addition and subtraction. In 1642, a French mathematician Blais… Continue reading »