Who invented a computer memory device?

Answer 1

I am not sure which device you are asking about, but one pioneer in the development of computer memory devices is the Chinese-American inventor An Wang. In the late 1940s, he invented the magnetic pulse controlling device; this discovery is important because it is the principle upon which magnetic core memory is based. Another important inventor was Jay Wright Forrester, who also made a major breakthrough in the late 1940s. Forrester invented the random-access magnetic core memory, still in use in most digital computers even today.