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John Vincent Atanasoff (October 4, 1903 – June 15, 1995) was a Bulgarian-American physicist and inventor, best known for inventing the first electronic digital computer. Atanasoff invented the first electronic digital computer in the 1930s at Iowa State College. Challenges to his claim were resolved in 1973 when the ''Honeywell v. Sperry Rand'' lawsuit ruled that Atanasoff was the inventor of the computer.〔(John Vincent Atanasoff. The father of the computer. (October 4, 1903 – June 15, 1995) )〕 His special-purpose machine has come to be called the Atanasoff–Berry Computer. == Early life and education == Atanasoff, of Bulgarian, French and Irish ancestry, was born on October 4, 1903 in Hamilton, New York to an electrical engineer and a school teacher. Atanasoff's father, Ivan Atanasoff was born in 1876 in the village of Boyadzhik, close to Yambol, Bulgaria. While Ivan was still an infant, Ivan's own father was killed by Ottoman soldiers after the Bulgarian April Uprising. In 1889, Ivan Atanasov immigrated to the United States with his uncle. Atanasoff's mother, Iva Lucena Purdy, was a teacher of mathematics. Atanasoff was raised by his parents in Brewster, Florida. At the age of nine he learned to use a slide rule, followed shortly by the study of logarithms, and subsequently completed high school at Mulberry High School in two years. In 1925, Atanasoff received his bachelor of science degree in electrical engineering from the University of Florida, graduating with straight A's. He continued his education at Iowa State College and in 1926 earned a master's degree in mathematics. He completed his formal education in 1930 by earning a Ph.D. in theoretical physics from the University of Wisconsin–Madison with his thesis, ''The Dielectric Constant of Helium''. Upon completion of his doctorate, Atanasoff accepted an assistant professorship at Iowa State College in mathematics and physics. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「John Vincent Atanasoff」の詳細全文を読む スポンサード リンク
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