Mac OS (originally System Software; retronym: Classic Mac OS [a]) is the series of operating systems developed for the Macintosh family of personal computers by Apple Computer, Inc. from 1984 to 2001, starting with System 1 and ending with Mac OS 9.

Infinite Mac is a project by Mihai Parparita to make classic Mac and NeXT emulation easily accessible. It uses WebAssembly ports of Mini vMac , Basilisk II , SheepShaver , DingusPPC , and Previous to allow a broad set of System Software/Mac OS versions to run on the web.

Need a copy of System 6.0.8, 7.0.1, or a newer version of the Classic Mac OS for your vintage Mac? You can dig through apple.com and try to find them – or you can download them using the updated links on this page.

In 1984, Apple debuted the operating system that is now known as the classic Mac OS with its release of the original Macintosh System Software. The system, rebranded Mac OS in 1997, was pre-installed on every Macintosh until 2002 and offered on Macintosh clones shortly in the 1990s.

2024年11月9日 · The first Macintosh System Software—later known as Classic Mac OS—debuted in 1984. It laid the foundation with a graphical user interface that others would soon follow. Over the years, this system saw regular updates to improve performance and add features.

2023年3月29日 · Thanks to a new project, you can boot up every major release of Mac OS from the 1980s and ’90s right in your web browser. With more than 25 Apple computers and devices in my collection, I’m...

Now, thanks to the fabulous Infinite Mac project by Mihai Parparita you can experience Apple’s System 6, System 7, Mac OS 8, or Mac OS 9 with just a web browser on your modern computer. These sites will promptly send you back in computing time:

2024年7月9日 · Mac OS (initially System Software, retroactively referred to as Classic Mac OS) is the operating system first released for Mac hardware. It is regarded as the first operating system to bring graphical user interface paradigms, predominantly the mouse, to a wide audience.

See a gallery of the Classic Mac OS (System 1-System 9) evolution from the beginning to 2001.

The final version of the Classic Mac OS requires a PowerPC G3 or G4 CPU. Performance was improved for use with the Classic Environment of OS X. Mac OS 9.2 arrived in June 2001 and 9.2.2, the final version, that December.