The original iMac entered a computing world that was in desperate need of a shake-up. After the wild early days of the personal computer revolution, things had become stagnant by the mid-1990s. Apple had spent a decade frittering away the Mac’s advantages until most of them were gone, blown out of the water by the enormous splash of Windows 95. It was the era of beige desktop computers chained to big CRT displays and other peripherals. Twenty-five years of the iMac On August 15th, 1998, the iMac hit store shelves. In the 25 years since then, the iMac has been...