5 Jan 1939 Jahr - The first digital calculator

Beschreibung:

The Atanasoff-Berry Computer (often called the ABC) was the first all-electronic digital computer; represents one of the major leaps forward in the history of calculators. The computer was designed and built by the Bulgarian dr. John Vincent Atanasoff and Dr. Clifford E. Berry at Iowa State University 1937-42. The Atanasoff-Berry Computer was built in the Physics Department of Iowa State University. The prototype was built in November 1939. The system weighed about 320 kilograms and contained about 1.6 kilometers of cables, 280 vacuum tubes, 31 thyratrons and had a desk-like shape.

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