Which systems support Mac OS 9?

The following is a list of supported systems that can run Mac OS 9, either as a bootable OS or in the Classic Environment.
 
Macintosh Model 9.0 9.1 9.2.1 9.2.2
Power Macintosh 6100 Yes Yes: Must install from CD No
Power Macintosh 7100
Power Macintosh 8100
PowerBook 2300 Yes
PowerBook 2400c
PowerBook 5300
PowerBook 1400 Partial: Password Security unsupported
PowerBook 3400 Yes: Hard disk driver must not be updated
Power Macintosh 5200 LC Yes
Power Macintosh 5300 LC
Power Macintosh 5500
Power Macintosh 4400
Power Macintosh 6200
Power Macintosh 6300
Power Macintosh 6400
Power Macintosh 6500
Power Macintosh 7200
Power Macintosh 7300
Power Macintosh 7500
Power Macintosh 8500
Power Macintosh 7600
Power Macintosh 8600
Power Macintosh 9600
Twentieth Anniversary Macintosh
PowerBook G3
PowerBook G3 Series Yes Yes
PowerBook (FireWire) Yes: Machine-specific version only
PowerBook G4 No Yes: Machine-specific version only
PowerBook G4 (Gigabit Ethernet) No Yes: Machine-specific version only
PowerBook G4 (DVI) No Yes: Machine-specific version only
PowerBook G4 (1 GHz/867 MHz)
PowerBook G4 (12-inch) Partial: Classic Environment only
PowerBook G4 (17-inch)
PowerBook G4 (12-inch DVI)
PowerBook G4 (12-inch 1.33 GHz)
PowerBook G4 (12-inch 1.5 GHz)
PowerBook G4 (15-inch FW 800)
PowerBook G4 (15-inch 1.5/1.33 GHz)
PowerBook G4 (17-inch 1.33 GHz)
PowerBook G4 (17-inch 1.5 GHz)
iBook Yes Yes Yes Yes
iBook (FireWire) Yes: Machine-specific version only
iBook (Dual USB) No Yes: Machine-specific version only
iBook (Late 2001)
iBook (14.1 LCD) No Partial: Classic Environment only
iBook (16 VRAM)
iBook (Opaque 16 VRAM)
iBook (32 VRAM)
iBook (14.1 LCD 32 VRAM)
iBook (Early 2003) Yes: Machine-specific version only
iBook G4 Partial: Classic Environment only
iBook G4 (14-inch)
iBook G4 (Early 2004)
Power Macintosh G3 All-In-One Yes
Power Macintosh G3
Power Macintosh G3 (Blue and White)
iMac G3
iMac G3 (266 MHz, 333 MHz)
iMac G3 (Slot Loading)
iMac G3 (Summer 2000) Yes: Machine-specific version only Yes Yes
iMac G3 (Early 2001) No Yes: Machine-specific version only
iMac G3 (Summer 2001)
iMac G4 No Yes
iMac G4 (February 2003) Partial: Classic Environment only
iMac G4 (17-inch 1 GHz)
iMac G4 (USB 2.0)
iMac G5
iMac G5 (Ambient Light Sensor)
iMac G5 (iSight)
eMac Yes
eMac (ATI Graphics CD-ROM drive) Yes: Machine-specific version only
eMac (ATI Graphics Combo drive)
eMac (ATI Graphics SuperDrive) Partial: Classic Environment only
eMac (USB 2.0)
eMac (2005)
Power Mac G4 (PCI Graphics) Yes Yes
Power Mac G4 (AGP Graphics)
Power Mac G4 (Gigabit Ethernet) Yes: Machine-specific version only
Power Mac G4 Cube
Power Mac G4 (Digital Audio) No Yes: Machine-specific version only Yes
Power Mac G4 (QuickSilver) No
Power Mac G4 (QuickSilver 2002) No Yes: Machine-specific version only
Power Mac G4 (Mirrored Drive Doors)
Power Mac G4 (FW 800) Partial: Classic Environment only
Power Mac G4 (Mirrored Drive Doors 2003) Yes: Machine-specific version only
Power Mac G5 Partial: Classic Environment only
Power Mac G5 (June 2004)
Power Mac G5 (Late 2004)
Power Mac G5 (Early 2005)
Power Mac G5 (Late 2005)
Mac Mini (G4)