SPEEDAC, the SPErry Electronic Digital Automatic Computer, was an early digital computer built by Sperry Corporation in 1953.[1]

It used 800 vacuum tubes and had magnetic drum storage of 4096 18-bit words.[1][2]

References

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  1. ^ a b Herbert Freeman, Cobblestones: The Story of My Life, p. 39
  2. ^ "The SPEEDAC" (PDF). Digital Computer Newsletter. Vol. 7, no. 1. Office of Naval Research - Physical Science Division. January 1955. p. 8.