List of tube computers

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Tube computers were built between the 1940s and the early 1960s and are now exclusively of museum importance.

ENIAC, first universal computer, US military, (in the foreground Betty Snyder Holberton , in the background Glen Beck )
IBM 305 RAMAC, with the world's first hard disk (5 MByte) 1956
Zuse Z22, Germany
AN / FSQ-7 - largest tube computer ever built, 55,000 tubes, 275 tons
Soviet Ural-1
Close-up view of the G3 , in operation at the MPI for Physics , Munich 1966