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Mass. 700 pounds (320 kg) The Atanasoff–Berry computer (ABC) was the first automatic electronic digital computer. [1] Limited by the technology of the day, and execution, the device has remained somewhat obscure. The ABC's priority is debated among historians of computer technology, because it was neither programmable, nor Turing-complete. [2]
John Vincent Atanasoff OCM (October 4, 1903 – June 15, 1995) was an American physicist and inventor credited with inventing the first electronic digital computer. [1] Atanasoff invented the first electronic digital computer in the 1930s at Iowa State College (now known as Iowa State University). Challenges to his claim were resolved in 1973 ...
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the triode in 1906.
Iowa State is the birthplace of the first electronic digital computer, starting the world's computer technology revolution. Invented by mathematics and physics professor John Atanasoff and engineering graduate student Clifford Berry during 1937–42, the Atanasoff–Berry Computer pioneered important elements of modern computing.
Clifford Berry was born April 19, 1918, in Gladbrook, Iowa, to Fred and Grace Berry. [1] His father owned an appliance repair shop, where he was able to learn about radios. [1] He graduated from Marengo High School in Marengo, Iowa, in 1934 as the class valedictorian at age 16. [2] He went on to study at Iowa State College (now known as Iowa ...
John Vincent Atanasoff and Clifford E. Berry of Iowa State University developed the Atanasoff–Berry Computer (ABC) in 1942, [86] the first binary electronic digital calculating device. [87] This design was semi-electronic (electro-mechanical control and electronic calculations), and used about 300 vacuum tubes, with capacitors fixed in a ...
Patent misuse, ENIAC. Honeywell, Inc. v. Sperry Rand Corp., et al., 180 U.S.P.Q. 673 ( D. Minn. 1973) (Case 4-67 Civil 138, 180 USPO 670), was a landmark U.S. federal court case that in October 1973 invalidated the 1964 patent for the ENIAC, the world's first general-purpose electronic digital computer.
The world's first electronic digital computer, the Atanasoff–Berry computer, was built on the Iowa State campus from 1939 through 1942 by John V. Atanasoff, a professor of physics and mathematics, and Clifford Berry, an engineering graduate student. In 1941, Konrad Zuse developed the world's first functional program-controlled computer, the Z3.