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	See as a list