![]() ![]() ![]() At the time, Mac OS was still a single-user OS, and had gained a reputation for being unstable. In 1993, Microsoft had introduced the next-generation Windows NT, which was a processor-independent, multiprocessing and multi-user operating system. In the mid-1990s, Mac OS was falling behind Windows. See also: macOS version history ยง Development Previous attempts to develop a successor to the Classic Mac OS Other musical code names include Harmony ( Mac OS 7.6), Tempo ( Mac OS 8), Allegro ( Mac OS 8.5), and Sonata ( Mac OS 9). Apple had canceled its previous next-generation operating system strategy of Copland (named for American composer, Aaron Copland) and its pre-announced successor Gershwin (named for George Gershwin, composer of Rhapsody in Blue). Rhapsody follows Apple's pattern through the 1990s of music-related codenames for operating system releases (see Rhapsody (music)). Rhapsody can run Mac OS 8 and its applications in a paravirtualization layer called Blue Box for backward compatibility during migration to Mac OS X. Several existing classic Mac OS frameworks were ported, including QuickTime and AppleSearch. Eventually, the non-Apple platforms were discontinued, and later versions consist primarily of the OPENSTEP operating system ported to Power Macintosh, merging the Copland-originated GUI of Mac OS 8 with that of OPENSTEP. Rhapsody's OPENSTEP based Yellow Box API frameworks were ported to Windows NT for creating cross-platform applications. Rhapsody represented a new and exploratory strategy for Apple, more than an operating system, and runs on x86-based PCs and on Power Macintosh. Rhapsody was targeted to developers for a transition period between the Classic Mac OS and Mac OS X. It is the fifth major release of the Mach-based operating system that was developed at NeXT in the late 1980s, previously called OPENSTEP and NEXTSTEP. ![]() Rhapsody is an operating system that was developed by Apple Computer after its purchase of NeXT in the late 1990s. ![]()
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