File:Calculating machine replica, Blaise Pascal, c. 1642, TM21265 - Tekniska museet - Stockholm, Sweden - DSC01564.JPG - Wikimedia Commons
![Pascal's calculator (also known as the arithmetic machine or Pascaline), a mechanical calculator invented by Blaise Pascal in the early 17th century. Pascal was led to develop a calculator by the laborious Pascal's calculator (also known as the arithmetic machine or Pascaline), a mechanical calculator invented by Blaise Pascal in the early 17th century. Pascal was led to develop a calculator by the laborious](https://c8.alamy.com/comp/2A265F8/pascals-calculator-also-known-as-the-arithmetic-machine-or-pascaline-a-mechanical-calculator-invented-by-blaise-pascal-in-the-early-17th-century-pascal-was-led-to-develop-a-calculator-by-the-laborious-arithmetical-calculations-required-by-his-fathers-work-as-supervisor-of-taxes-in-rouen-he-designed-the-machine-to-add-and-subtract-two-numbers-directly-and-to-perform-multiplication-and-division-through-repeated-addition-or-subtraction-2A265F8.jpg)
Pascal's calculator (also known as the arithmetic machine or Pascaline), a mechanical calculator invented by Blaise Pascal in the early 17th century. Pascal was led to develop a calculator by the laborious
![Machines | Free Full-Text | Blaise Pascal's Mechanical Calculator: Geometric Modelling and Virtual Reconstruction Machines | Free Full-Text | Blaise Pascal's Mechanical Calculator: Geometric Modelling and Virtual Reconstruction](https://pub.mdpi-res.com/machines/machines-09-00136/article_deploy/html/images/machines-09-00136-g024.png?1627026228)
Machines | Free Full-Text | Blaise Pascal's Mechanical Calculator: Geometric Modelling and Virtual Reconstruction
![Calculating Machine Designed By French Mathematician Blaise Pascal In 1642 When He Was Nineteen Years Old. It Could Perform Addition And Subtraction. History - Item # VAREVCHISL022EC198 - Posterazzi Calculating Machine Designed By French Mathematician Blaise Pascal In 1642 When He Was Nineteen Years Old. It Could Perform Addition And Subtraction. History - Item # VAREVCHISL022EC198 - Posterazzi](https://cdn11.bigcommerce.com/s-yzgoj/images/stencil/1280x1280/products/1900370/2759125/apilrvuwh__95482.1626405473.jpg?c=2)
Calculating Machine Designed By French Mathematician Blaise Pascal In 1642 When He Was Nineteen Years Old. It Could Perform Addition And Subtraction. History - Item # VAREVCHISL022EC198 - Posterazzi
![Fermat's Library on Twitter: "In 1644, Blaise Pascal built the first calculating machine - a Pascaline - to help his father compute business accounts. Pascal was 20 years old. https://t.co/mphfY87Bnu" / Twitter Fermat's Library on Twitter: "In 1644, Blaise Pascal built the first calculating machine - a Pascaline - to help his father compute business accounts. Pascal was 20 years old. https://t.co/mphfY87Bnu" / Twitter](https://pbs.twimg.com/media/FA8A4daWEAEc4Md.jpg:large)