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  • All fields: 1918*
(1811 results)



Display: 20

    • Manual for the Atanasoff-Berry Computer

    • Atanasoff, John V. (John Vincent) ; Berry, Clifford Edward, 1918-1963 ; Electronic digital computers -- History ; Computers -- History ; Computer engineering -- Iowa -- Ames; Atanasoff-Berry Computer; ABC Computer;
    • Manual for the original Atanasoft-Berry Computer build by John Vincent Atanasoff and Clifford Berry.
    • Drums of the Atanasoff-Berry computer, Physics

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • The keyboard and counter drums contained 1600 capacitors each. The capacitors stored charge, acting as a primitive memory unit.
    • Part of an Atanasoff-Berry Computer

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • The Atanasoff-Berry Computer was completed in 1942 in the basement of Physics Hall at Iowa State University. It was about the size of a desk and weighed more than 700 lbs.
    • The last remaining part of the Atanasoff-Berry Computer

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • This drum is all that remains of the Atanasoff-Berry Computer at Iowa State University. The drum is shown with a ruler for purpose of scale.
    • Atanasoff-Berry Computer during construction phase

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • The Atanasoff-Berry Computer taken from John Vincent Atanasoff files during the construction phase. The 280 vacuum tubes served as logic gates.
    • Atanasoff-Berry Computer frame, circuit installed

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • The frame for the Atanasoff-Berry Computer with the circuit installed
    • Atanasoff-Berry Computer drawing, 1985

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Berry, Clifford Edward, 1918-1963; Iowa State University; Computer engineering -- Iowa -- Ames; ABC Computer; Atanasoff-Berry...
    • A drawing of the Atanasoff-Berry Computer with parts identified, 1985
    • Atanasoff-Berry Computer drawing, 1941

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Iowa State University; Berry, Clifford Edward, 1918-1963; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • A drawing of the Atanasoff-Berry Computer showing the drum covers removed. The ABC Computer was built in Physics Hall (Physics Building) at Iowa State University.
    • A side view of the Atanasoff-Berry Computer, 1942

    • Atanasoff, John V. (John Vincent); Computers -- United States -- History; Electronic digital computers -- History; Iowa State University; Berry, Clifford Edward, 1918-1963; ABC Computer; Computer engineering -- Iowa -- Ames; Atanasoff-Berry...
    • A side view of the Atanasoff-Berry Computer. The computer contained 280 vacuum tubes and 31 thyratrons.
    • Letter from Carver to Pammel, April 29, 1918

    • Botanical Specimens; Pammel, L. H. (Louis Hermann), 1862-1931
    • April 29, 1918 Dr. L. H. Pammel Iowa State College, Ames, Iowa. My dear Dr. Pammel: I wish to thank you for your kindly favor of some days ago. I have been intending to answer before now, but so many things have transpired to prevent it. However, I...
    • Boysen family

    • Boysen family--Homes and haunts--Iowa--Clinton County
    • Family group posed in front of the Boysen home located between Grand Mound and DeWitt in Clinton County, Iowa.
    • Bussen farm

    • Bussen family--Homes and haunts--Iowa--Grand Mound
    • The Bussen farm house and outbuildings in winter. The house and yard are enclosed by a picket fence. The lawn is covered with snow. There is cupola on one of the outbuildings.
    • Bussen farm

    • Bussen family--Homes and haunts--Iowa--Grand Mound
    • The Bussen farm, east of Grand Mound, Iowa. A man is at a pump near the fence at the front of the yard.

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