The first RAM was the Williams-Killburn tube CRT memory in the late 1940s.
Lee De Forest invented the electron tube in 1906.
John Flamsteed invented the first test tube.
The IBM 701 vacuum tube computer was announced May 21, 1952. It had 2K words 36 bits long (~9K bytes) of Williams Tube CRT DRAM.
The cathode ray tube was invented in 1897 by Ferdinand Braun.
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The Crookes tube is a sealed glass tube that exhibits fluorescence in it after voltage is passed through the electrodes inside. It was invented in 1875 by Sir William Crookes.
In 1907 American inventor Lee De Forest invented the three-electrode vacuum tube
In 1907 American inventor Lee De Forest invented the three-electrode vacuum tube
he invented the helicopter.what does he invent
Lee De Forest invented vacuum tubes.
Williams tube CRT DRAM