The Drawing Machine
On September 23, 1949, Harry Truman walked to a podium and delivered a 37-word statement notifying the American people that the Soviet Union had detonated an atomic bomb on the Kazakh steppe. Omitted was the fact that the Soviet Union was also building a fleet of long-range bombers capable of dropping nuclear weapons on the United States across the Arctic.
The Pentagon lacked the ability to track these bombers in real time, a gap that created the possibility of a “nuclear Pearl Harbor,” a sudden Soviet atomic strike on US military bases and cities with little or no warning. The shock forced a scientific mobilization that permanently changed our view of what computers could and should be used for.
Before the Cold War, primitive computers were largely viewed as high-speed calculators. During World War II, this brute-force calculation had proved valuable, as machines like the British Colossus chewed through mountains of intercepted communications to break German military encryption. Yet these wartime breakthroughs operated strictly after the fact, relying on recorded data processed in isolated batches. The problem of untrackable Soviet bombers demanded a radically new approach: a system that could ingest continuous radar data, process it instantly, and visually represent this data on a screen for human decision makers. In solving this problem, scientists would convert computers from tools that solved equations into devices that managed reality as it happened.
