jan 1, 1642 - Invention of Pascal's Calculator

Description:

- An important invention as Pascal's calculator showed the general public that computers could be used to simplify and improve human tasks and jobs (such as accounting and tax collection)

- Pascal's calculator was the first calculator to have a carry mechanism; when 1 is added to 9, the calculator carries over the 1 to the next digit, and returns the 9 back to 0. The concept of carrying over spread to future calculators and computers

- The invention of Pascal's calculator inspired other mathematicians and inventors to create mechanical calculators and computers (such as Leibniz's calculator), leading to technological advances in the computing world