You Can Now Try Apple's Unreleased Copland OS in Your Browser

In the mid–1990s, Apple worked on an operating system called Copland, which was announced but never commercially released because of project management issues and feature creep. Parts of Copland were eventually included in Mac OS 7.6 and Mac OS 8, but it was so problematic as a whole that Apple nixed it before it was finished. Michael Steil, who works to reverse engineer vintage hardware and software, was recently able to get Copland running in emulation.