The iMac G4 is the second generation of iMacs released in January 7, 2002. It replaced the previous CRT screen iMac G3. The design is completely different to the previous iMac G3, with a 15-inch and 17-inch LCD display mounted on a flexible arm, allowing you to move the screen back, forward, left, right, and swivel side to side. The computer is housed around a hemisphere base that held the screen. The design of the iMac G4 was dubbed the “iLamp”, as it was advertised as being as flexible as a desk lamp. The first iMac G4 was released with Mac OS X 10.1 “Puma” operating system.


There have been 4 major updates of the iMac G4, besides the routine CPU, Memory and Hard Drive updates, the later models featured USB 2.0 ports (upgraded from USB 1.1), a 20-inch LCD display with 1680 x 1050 pixels, Mac OS X 10.2 “Jaguar” and Mac OS X 10.3 “Panther” operating systems.



The first G4 iMac came with a 700 or 800 MHz PowerPC G4 Processor, 128MB or 256MB Memory, nVidia GeForce 2 MX with 32MB Video Memory, 40GB/60GB/80GB Hard Drive and Internal Combo Drive/Super Drive.

The iMac G4 was available until August 31, 2004 being replaced by the new redesigned iMac G5.