From colossal devices designed to save the world to mind-expanding, world-shrinking machines, we trace the evolution of mice and menus. Learn about the world's most powerful computer, IBM's ASCI White, that operates at 12-trillion calculations a second. See how the first room-sized computers, such as ENIAC, changed the world. Bite into Apple's history, the machine that made computers a household appliance. And peer through a microscope to see the molecular computers of the future.