SPEEDAC

{{Short description|1953 computer}}

{{For|the filing system|L. B. Speedac}}

SPEEDAC, the SPErry Electronic Digital Automatic Computer, was an early digital computer built by Sperry Corporation in 1953.Herbert Freeman, Cobblestones: The Story of My Life, [https://books.google.com/books?id=vd8tbbFA9AoC&pg=PA39 p. 39]

It used 800 vacuum tubes and had magnetic drum storage of 4096 18-bit words.{{cite magazine |url=https://nsarchive.gwu.edu/sites/default/files/documents/5008303/Office-of-Naval-Research-Physical-Sciences.pdf#Page=9 |title=The SPEEDAC |magazine=Digital Computer Newsletter |volume=7 |issue=1 |pages=8 |publisher=Office of Naval Research - Physical Science Division |date=January 1955}}