Which of the following was a special purpose computer?
ABC was a special purpose computer.
Atanasoff-Berry Computer (ABC), an early digital computer. ... They then began the design and construction of a larger, more general-purpose computer, known as the Atanasoff-Berry Computer or the ABC. ABC. (Atanasoff-Berry Computer) The first electronic digital computer. Completed in 1942 by Iowa State Professor John Atanasoff and graduate student Clifford Berry, it employed many of the principles of future computers.