Where the now-discontinued iMac G4 consisted of an LCD attached by a metal arm to a hemispherical base, the new iMac is all screen. Every internal component, from the DVD drive to the power adapter, has been fitted into the back of the display, which pivots slightly atop a "foot" made from a single slab of aluminum.
Unlike all-in-one PCs from Gateway and Sony that also combine screen and computer in one housing, the iMac G5 doesn't look like a hunchbacked monitor: It's only about two inches thick. The power button and two FireWire and three USB 2.0 ports reside on the back, leaving a front that consists of just the LCD and a chinlike expanse of white plastic below it that hides the power adapter and speakers.