With each generation of PowerPC model, Apple added a new twist to the idea of all-in-one computer design. First it was curves and color, then a floating flat panel display, and finally an iMac where the entire computer lived behind the display.

233 iMac Rev. A	233 iMac Rev. B	266 iMac Rev. C	266 iMac Rev D	Late 99 Slot Loading
iMac DV	Special Edition	iMac Mid-2000	DV Mid-2000	iMac DV+
DV Sp-Ed 2000	Early 01 400 MHz	Early 01 500 MHz	500 MHz, int’l	2001, 600 MHz
iMac (July 2001)	iMac G4 15″, Mid-02	17″ iMac G4, 02	Early 2003 15″	1 GHz 17″ 2003
15″, (USB 2.0)	17″ (USB 2.0)	1.25 20″, Late 03	eMac 2002 Nvidia	ATI GPU 2003 eMac
1.25 (USB 2.0)	2005, 1.42 eMac	iMac G5, 2004	iMac G5 Mid-2005	iMac G5 (iSight)