Monday, 11 January 2021

logic gates

Via Pasa Bon! we are presented with an educational toy in the form of a mechanical computer invented and marketed in 1965 by John “Jack” Thomas Godfrey called the Digi-Comp II that used marbles rolling down an incline through customisable, programmable interventions, like a pinball game (Flipperkast) or pachinko to teach coding. These basic calculations were accomplished—less kinetically—on the predecessor game with gears and latch circuits as a demonstration of binary logic. Much more to explore at the link up top including a giant model and a Lego version of the visual calculator.