Are any Macs capable of booting into both MacOS X 10.5 "Leopard" and MacOS 9?

With Apple's decision to release MacOS X 10.5 "Leopard" without support for the "Classic Environment" even on PowerPC-based Macs that support "Classic" within earlier versions of MacOS X, one is forced to make a choice should he or she continue to need legacy document access and application support.

One can either continue to use MacOS X 10.4 "Tiger" in order to access MacOS 9/"Classic" (or create a dual-boot setup with MacOS X 10.5 "Leopard" and MacOS X 10.4 "Tiger/Classic"), experiment with SheepShaver, maintain a separate MacOS 9 "legacy box," or use a system that is capable of booting directly into both MacOS X 10.5 "Leopard" and MacOS 9.

There are a handful of systems capable of booting in both MacOS 9 and MacOS X 10.5 "Leopard." Information on these systems is provided on the MacOS 9/Classic Support Capability listing -- along with complete MacOS 9/Classic compatibility of all PowerPC G3 and later PowerPC-based Macs -- but also is provided below for your convenience:

Power Macintosh G4

Power Macintosh G4 867 (Quicksilver)
Power Macintosh G4 933 (QS 2002)
Power Macintosh G4 1.0 DP (QS 2002)
Power Macintosh G4 867 DP (MDD)
Power Macintosh G4 1.0 DP (MDD)
Power Macintosh G4 1.25 DP (MDD)
Power Macintosh G4 1.25 (MDD 2003)

Mac Server G4

Mac Server G4 933 (QS 2002)
Mac Server G4 1.0 DP (QS 2002)
Mac Server G4 1.0 DP (MDD)
Mac Server G4 1.25 DP (MDD)

PowerBook G4

PowerBook G4 867 (Ti)
PowerBook G4 1.0 (Ti)

eMac

eMac G4/1.0 (ATI) (M8950LL/A Only)

You also might be interested in reading "What is the fastest Mac capable of booting into MacOS 9? Which are the last Macs capable of booting into MacOS 9?" and "Which are the last Macs capable of running MacOS 9/Classic applications?"

Site sponsor Operator Headgap Systems specializes in heavily upgraded refurbished Macs capable of running both MacOS X and MacOS 9/Classic applications.