Did you know early computers, like ENIAC, used vacuum tubes and consumed enough electricity to power a small town? They also emitted so much heat, rooms had to be heavily air-conditioned. Contrast that with today's smartphones, which pack more computing power while fitting in our pockets and generating minimal heat. These technological leaps reflect incredible advances in materials science and miniaturization. What astonishing computer fact astounds you? Share your own surprising insights or stories about computers!