The brilliant and inventive Berry, with his background in electronics and mechanical construction skills was the ideal partner for Atanasoff. The prototype won the design team a grant of $850 to build a full-scale computer, they spent the next two years further improving the Atanasoff Berry Computer, which ended up being the size of a desk, weighing 700 pounds, having over 300 vacuum tubes, and a mile of wire. It could do about one operation every 15 seconds, today a computer today can do 150 billion operations in 15 seconds. Too large to go anywhere, it remained in the basement of the physics department, where it was built, the war effort prevented Atanasoff from finishing the patent process and doing any further work on the ABC. The ABC, was dismantled when it's storage space in the physics building was needed.