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Williams tube

More appropriately referred to as the Williams-Kilburn tube, the Williams tube is a storing device for data and cathode-ray tubes (CRT) used with early computers. An application for a patent was originally filed by Freddie Williams in December 11, 1946 and finished by Freddie Williams and Tom Kilburn. The tube stored only 128, 40-bit words as an electrical charge that created a spot of light on the face of the "TV tube."

Williams-Kilburn tub

Above, is a picture of the Williams-Kilburn tube that was used in the Manchester Mark I computer, taken at the Computer History Museum by Computer Hope.

Also see: CRT, Memory terms, Nixie tube, Selectron tube