How big was ENIAC?

Answer:

ENIAC weighed 30 tons and covered up to 1800 sq. feet. It took massive amounts of energy so it had to be cooled down once in a while (not sure what once in a while is) and had to be repaired constantly due to faulty wiring.

First answer by Death Wizard. Last edit by Death Wizard. Contributor trust: 34 [recommend contributor recommended]. Question popularity: 10 [recommend question].