Apple Wiki
Apple Wiki
Not to be confused with the backwards-compatible Classic environment in Mac OS X.

Classic Mac OS is a general term used to describe vintage Macintosh system software (Mac OS) before (and not including) Mac OS X. PowerPC-based Macs running versions of Mac OS X up to 10.4 Tiger are able to employ the Classic environment, providing compatibility with "Classic" applications, provided they can function on Mac OS 9. Macs using Intel and Apple Silicon processors are unable to run "Classic" software and therefore must employ an emulator.

Release history[]

Major releases of the classic Mac OS:


External links[]

Mac OS   Classic Mac OS versions
Macintosh System Software : System 1 · System 2 · System 3 · System 4 · System 5 · System 6 · System 7
Mac OS : Mac OS 7.6 · Mac OS 8 · Mac OS 9 · Classic environment
Cancelled : Copland · Gershwin
Deprecated in in May 2002 and succeeded by Mac OS X
Utility stub shuffle This article is a stub. You can help by expanding it.