Lexikon's History of Computing

Chronology: Milestones in the Development and Use of Vacuum Tubes and Transistors

 

-Date

-Achievement

-Inventor/Contributor

1870

Invention of Geissler Tubes

Heinrich Geissler

 

 

1878

Invention of the Crookes Tube

Sir William Crookes

 

1879

Discovery of the "Edison Effect"

Thomas Edison

 

1895

Discovery of X-rays

Wilhelm K. Roentgen

 

1895

Discovery of negatively charged particles flowing through vacuum tube

Jean B. Perrin

 

1895-97

Experiments with vacuum tubes and particle flow

Joseph J. Thomson

 

1901

Electrolytic Detector

Reginald Fessenden

 

1904

Fleming Valve, a diode tube

John A. Fleming

 

1907

Audion amplifier tube, a triode tube

Lee De Forest

 

1912-1913

Triode tube oscillator

Lee De Forest

Edwin H. Armstrong

 

1916

Tetrode tube

Walter Schottky

 

1926

Pentode tube

Benjamin D. H. Tellegen

 

1923, 1928

Iconoscope and kinescope (TV tubes)

Vladimir K. Zworykin

 

1939

Magnetron tube

John T. Randall

Henry A. H. Boot

 

1939

Klystron microwave tube

Russel H. Varian

Sigurd F. Varian

 

1939-1940

("ABC" digital computer) John Vincent Atanasoff and Clifford Berry Construct their vacuum tube based digital computer

 

1943

Travelling-wave tube

Rudolph Kompfner

 

1947

Invention of Transistor

J. Bardeen

W. H. Brattain

 

1953

MIT builds the MIT-TX-0 transistorized computer

 

1957

Tunnel-diode

 

 

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