Introduce another iconic iMac, of course, in the form of the iMac G4. In place of the G3's CRT ... by faster DDR2 RAM and an improved ATI Radeon GPU. Apple would eventually introduce Boot Camp ...

the entire board is smaller than the stock iMac G4’s hard drive. It still took plenty of cramming, with a multitude of adapters finagled and massaged to fit inside the original housing.