This Day in History
June 15, 1949
MIT's Forrester Records "Core Memory" Idea
Jay Forrester recorded a proposal for core memory in his notebook. A professor at MIT at the time, Forrester eventually installed magnetic core memory on the Whirlwind computer. Core memory made computers more reliable, faster, and easier to make. Such a system of storage remained popular until the development of semiconductors in the 1970s.