How big was the eniac?

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...

2,0000 acres of ground and 90 shopping centres in the whole of eniac which meens 2,0900 acres including shopping resorts

40 - 19 inch relay racks covering 3 sides of a room, 2 - 6 foot tall function table racks on wheels, an IBM card reader, and an IBM summary card punch. you figure the math out.

Blue Whale, Great White shark, a Sea Cow, a Bull Shark and some more.

9 meters