Weight: About 30 tons.Footprint: About 1,500 square feet.
Storage: Twenty 10 digit numbers.
Computing capability: Originally designed for computing ballistic tables (ENIAC was not originally a general purpose computer but changes allowed for other computations, although programming was *very* difficult).
Programming time: Typically multiple days per program since you had to rewire a patch panel each time you wanted to change the program. The patch panel was the actual instruction store.
Logic elements: 17,500 vacuum tubes, 6,000 switches, 1,500 relays.
Computing rate: Up to 5,000 additions per second.
Power requirements: About 175,000W, (a smart phone usually requires 5W or less).
Cost: About $400,000 (in 1946 dollars – about $5.7million in today’s money).