Copland is an operating system Apple developed for its Macintosh lineup of computers between 1994 and 1996 but never commercially released. The operating system was the victim of bad project management and feature creep. The OS was intended to be released as System 8, but instead parts of the OS were used in Mac OS 7.6 and Mac OS 8.
Copland introduced several new underlying operating system features, protected memory, and preemptive multitasking, while still maintaining compatibility with existing Mac applications.
Now, you have the opportunity to give Apple’s unreleased Macintosh operating system a try, and you don’t have to deal with any complicated settings or configuration. With just a few clicks you can explore Apple’s late unlamented OS, and you can do it in your browser.
Michael Steil, known for reverse engineering vintage hardware and software, was recently able to get Copland to run in an emulator. It doesn’t sound like it was an easy feat, as he had to modify the open-source Power Mac emulator DingusPPC, and it took 11 patches to get Copland up and running within the emulator’s restraints.
Now, Steil has a browser version of Copland you can try on his website, and has also shared the patches needed to boot Copland.
Apple released three beta versions during Coplands development cycle. Steil was able to get what turned out to be the last beta (D11E4) to work. He said Copland is “notoriously hard to run on real hardware,” and wasn’t previously available in emulation.
As noted by MacRumors, Apple canceled Copland in August 1996, leaving the company in search of a new operating system. That search ended with the purchase of Steve Jobs’ NeXT in 1997. The company’s NeXTSTEP operating system, was the parent of Mac OS X.
