Apple’s Mac OS Killer in 1996
Before Apple acquired NeXT for its NeXTStep operating system, it was working on a modern operating system of its own. Named after the popular American composer, Aaron Copland, the OS was a complete rewrite of the existing Mac OS that supported multitasking, protected memory and a brand new look that would eventually be rolled into Mac OS 8 as Platinum. The project stagnated under the leadership of Gil Amelio, and was canceled after it became clear it could not be completed. Read the story at Low End Mac.