I remember my father telling me about IBM's new computer in Adelaide in the 1960's. It took an entire floor of an office building and could add, subtract and multiply like a boss, just couldnt do division! That is when it was running, instead of transistors the machine used valves and was prone to continual breakdowns. Sometimes when an insect was attracted to the heat and light of the valves and would short the whole system. Yep, you got it. That's where the computer term "Bug" came from.
But check out the difference in data storage, graphically shown in the following pictures.