I want to know the answer to the following question:
How many vacuum tubes did the Atanasoff-Berry computer use?
All the background I'm provided with is that "In the US, John Vincent Atanasoff and Clifford E. Berry of Iowa State University developed and tested the Atanasoff–Berry Computer (ABC) in 1942, the first "automatic electronic digital computer".". Is that enough to answer the question?
Answer: no