Rhapsody

Rhapsody was the code name for an operating system based on OpenStep from NeXT, that eventually evolved into Mac OS X.
==Description==
Rhapsody was released in Developer Previews, and was designed around the concept of "boxes" -- a "blue box" to emulate the classic Mac OS; and a portable "yellow box" based on OpenStep (with an embedded Java Virtual Machine), runnable on PowerPC and Intel hardware, under Rhapsody, Windows NT, and Linux; and a "red box" to emulate Windows, which was never actively developed.
The "yellow box" eventually became forked into the Aqua environment we know in OS X and iOS, and GNUStep for Linux and Windows.  The two environments only have superficial compatibility today.
==External links==
*Cocoa and the Death of Yellow Box and Rhapsody by Daniel Eran Dilger at Roughly Drafted
*Red Box, Blue Box, Yellow Box by Daniel Knight at Low End Mac (archived 1997-09-17)
*Rhapsody at Michigan State University Multimedia Interest Group (archived 1999-10-07)
*Rhapsody Developer Release 1 and 2 at BetaWiki
*Rhapsody Developer Release 2 at Nathan's Toasty Technology page
*Rhapsody (operating system) at Wikipedia
Category:Operating systems
Category:Discontinued Apple software