Whirlwind computer

The Whirlwind computer is developed for the U.S. Navy's Office of Research and Inventions during the early 1950s. The Whirlwind uses magnetic core memory storage, which replaces the unreliable and short-lived electrostatic tubes used previously. The Whirlwind is the first computer designed for real-time work and can do 500,000 additions or 50,000 multiplications per second.
More Computer History