COMPUTER FUNDAMENTALS

Detailed explanation-1: -The Atanasoff–Berry computer (ABC) was the first automatic electronic digital computer. 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.

Detailed explanation-2: -The Atanasoff Berry Computer, later named the ABC, was built at Iowa State University from 1939-1942 by physics professor Dr. John Vincent Atanasoff and his graduate student, Clifford Berry.