Whirlwind I

Vacuum tube computer developed by the MIT Servomechanisms Laboratory

Whirlwind I is a vacuum-tube computer developed by the MIT Servomechanisms Laboratory for the U.S. Navy. Operational in 1951, it was among the first digital electronic computers that operated in real-time for output, and the first that was not simply an electronic replacement of older mechanical systems. It was one of the first computers to calculate in bit-parallel (rather than bit-serial), and was the second to use magnetic-core memory after it had been proven to work for some months of use on the Memory Test Computer (MTC).

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