Why did Pascal invent the first calcutor in 1645?

Blaise Pascal invented the first mechanical calculator, known as the Pascaline, in 1645 primarily to help his father, who was a tax collector, perform complex arithmetic calculations more efficiently. Pascal aimed to create a device that could reduce the burden of manual calculations and improve accuracy in financial records. His invention marked a significant step in the development of computing devices and laid the groundwork for future innovations in mathematics and engineering.