November 18, 2003: Apple debuts a new iMac G4 sporting a 20-inch screen, the company’s biggest flat-panel all-in-one computer ever.
The introduction makes an already superb Mac even better. Somehow, though, the additional screen real estate makes the new Mac weigh twice as much as the 17-inch model.

July 17, 2002: Apple ships a new super-sized iMac G4 with a 17-inch widescreen LCD display that becomes the envy of most computer users at the time.
