Browsing: turning

In 1947, Harvard’s Mark II ran on roughly 13,000 electromechanical relays, stored numbers across 100 registers, and read instructions from punched paper tape, turning thousands of clicking metal switches into a Navy calculator vulnerable to dust, loose contacts, and one famously misplaced moth

Saving Tips

Harvard’s Mark II began solving test problems in July 1947 with approximately 13,000 electromechanical relays clicking inside it. The machine…