01) The first mechanical calculator for all four arithmetic operations by Gottfried Wilhelm Leibniz
Deutsches Museum on X: "Calculator of Gottfried Wilhelm #leibniz @DeutschesMuseum : The famous #polymath was born in Leipzig 370 years ago. https://t.co/mDa4vZ6VNQ" / X
1 jan 1672 ano - maquina de leibniz (Linha do tempo)
Leibniz calculator hi-res stock photography and images - Alamy
Uma Linha do Tempo sobre a história dos computadores