.Rhapsody was the code name given to 's next-generation during the period of its development between Apple's purchase of in late 1996 and the announcement of (now called 'macOS') in 1998. At first more than an operating system, Rhapsody represented a new strategy for Apple, who intended the operating system to run on -based PCs and workstations as well as on -based Macintosh hardware. In addition, the underlying frameworks would be ported to run natively on Microsoft. Eventually, the non-Apple platforms were dropped, and later versions consisted primarily of the operating system ported to the, along with a new GUI to make it appear more Mac-like. Several existing technologies were also ported to Rhapsody, including.
Rhapsody could also run in a 'Blue Box' emulation layer. Contents.History Rhapsody was announced at the in San Francisco on January 7, 1997 and first demonstrated at the 1997 (WWDC). Pro beach volleyball pc game. There were two subsequent general Developer Releases for computers with or processors.
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After this there was to be a 'Premier' version somewhat analogous to the, followed by the full 'Unified' version in the second quarter of 1998. Apple's development schedule in integrating the features of two very different systems made it difficult to forecast the features of upcoming releases. At the 1998 in, announced that Rhapsody would be released as (which shipped in 1999). No home version of Rhapsody would be released. Its was into, the underpinnings of macOS.Design Defining features of the Rhapsody operating system included a heavily modified 'hybrid' OSFMK 7.3 (Open Source Foundation Mach Kernel) from the OSF, a operating system layer (based on ), the object-oriented API framework, the compatibility environment for running applications, and a.The user interface was modeled after 's 'Platinum' appearance. The file management functions served by the in previous Mac OS versions were instead handled by a port of 's Workspace Manager.
Additional features inherited from OPENSTEP and not found in the classic Mac OS Finder were included, such as the. Although the Shelf was dropped in favor of functionality, column view would later make its way to 's Finder.Rhapsody's Blue Box environment, available only when running on the architecture, was responsible for providing runtime compatibility with existing Mac OS applications.
Compared to the more streamlined and integrated Classic compatibility layer that was later featured in Mac OS X, Blue Box's interface presented users with a distinct barrier between emulated legacy software and native Rhapsody applications. All emulated applications and their associated windows were encapsulated within a single Blue Box emulation window instead of being interspersed with the other applications using the native Yellow Box API. This limited cross-environment interoperability and caused various user interface inconsistencies.To avoid the pitfalls of running within the emulation environment and take full advantage of Rhapsody's features, software needed to be rewritten to use the new Yellow Box API. Inherited from OPENSTEP, Yellow Box used an object-oriented model completely unlike the model used by the Classic APIs. The large difference between the two frameworks meant transition of legacy code required significant changes and effort on the part of the developer. The consequent lack of adoption as well as objections by prominent figures in the Macintosh software market, including and, became major factors in Apple's decision to cancel the Rhapsody project in 1998.However, most of Yellow Box and other Rhapsody technologies went on to be used in macOS's. Bowing to developers' wishes, Apple also ported existing Classic Mac OS technologies into the new operating system and implemented the to provide Classic Mac OS API compatibility.
Widely used Mac OS libraries like and were ported and made available to developers. Carbon allowed developers to maintain full compatibility and native functionality using their current codebases, while enabling them to take advantage of new features at their discretion.Name The name followed a pattern of music-related code names that Apple designated for operating system releases during the 1990s. Another next-generation operating system, which was to be the successor to the never-completed operating system, was code-named Gershwin after, composer of. Copland itself was named after another composer,.
Other musical code names include Harmony , Tempo , Allegro , and Sonata.Release history VersionCode nameDatePlatformRhapsody Developer ReleaseGrail1Z4August 31, 1997Rhapsody 5.0,Rhapsody Developer Release 2Titan1UMay 14, 1998Rhapsody 5.1,Rhapsody Premier1998Rhapsody 5.2Hera1O9March 16, 1999Rhapsody 5.3Mac OS X Server 1.0.1Hera1O9April 15, 1999Rhapsody 5.4Mac OS X Server 1.0.2Hera1O9+Loki2G1July 29, 1999Rhapsody 5.5Mac OS X Server 1.2Pele1Q10January 14, 2000Rhapsody 5.6Mac OS X Server 1.2 v3Medusa1E3October 27, 2000Rhapsody 5.6See also.References. Apple Computer, Inc.
7 January 1997. Archived from on 16 January 1999. Retrieved 15 February 2015. Retrieved 2009-05-03. Retrieved 2009-05-03.External links. — Screenshots of Rhapsody Developer Release 2.
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— Screenshots of Rhapsody (Intel version) and its components. — An article written shortly after Apple first demonstrated Rhapsody. — An overview of Rhapsody's technologies. — Technical specifications on the operating system., By Daniel Eran Dilger, 2007-02-19, RoughlyDrafted.