AmigaOS is the native operating system for the Commodore Amiga, which from the components of Workbench, which Amiga DOS with the command line level CLI (later renamed in Shell) and the operating system core Kickstart present with most Amiga models in the ROM exists.
The system was developed by the company Amiga and finished after their assumption by Commodore 1985 in the first version. The component Amiga DOS and parts of Kickstart are based on tri pos, a multi-user operating system of the company MetaComCo, who was developed in the programming language BCPL.
For its time, i.e. between 1985 and 1992, the AmigaOS had outstanding characteristics:
The first 68k-CPUs made available still no MEMORY management unit. Therefore the AmigaOS without storage protection had to get along - however this in the middle of the 80's was also still no topic in the home computer segment.
The Workbench was not needed compellingly for functioning the computer, since the operating system core and many system libraries were contained in the Kickstart ROM, why most computer games were loaded directly with Kickstart, in order to be able to use more main storage. Thus the multitasking characteristics of the operating system were however mostly set except function. Up to the version 3.1 (1994) the AmigaOS was developed by Commodore. For the development of the versions 3,5 (1999) and 3,9 (2000) were Amiga Inc. and Haage & partners responsible.
Momentarily Hyperion works on behalf of Amiga Inc. at the version 4 of AmigaOS, which first AmigaOS, which supports no more MC68000-Prozessoren, runs but exclusively on of Motorola power PC row. AmigaOS 4,0 stands at present as "Developer Pre release" for order, however exclusively for the AmigaOne platform of Eyetech (by Dongle).
With the help of the GNU AmigaOS can aid programmes be transformed into a unixoides operating system. In this context the editor vim developed, in addition the AmigaOS end of the 80's and at the beginning of the 90's was a time long the main development platform for numerous GNU tools, among other things the GCC.
An alternative to the execution of 68k AmigaOS-3.1-Programmen on current power PC hardware in form of the Pegasos Rechnerfamilie is MorphOS.
For the execution of native power PC software AmigaOS4 and MorphOS use unfortunately different beginnings, which are not compatible with one another. By supply of mutual emulation beginnings (OS4Emu and/or ppclibemu) from third side on solutions one works here, which lead a prototypeful niche existence for lack of readiness for official co-operation however rather.
The AROS project is a beginning to copy a free AmigaOS-3.1-Umgebung on x86-Prozessoren (and other CCUs). In the form of depr. (AROS for AmigaOS) exists likewise a project, which is anxious to make the innovations introduced by AROS available by also under AmigaOS.
smOS the project is likewise a free development, which tries, to combine the principles of AmigaOS with the possibilities of a CIL of remark system. Beside x86-Prozessoren are to be supported as far as possible also M68k/Coldfire, MIPS, ARM and PowerPC.
Amiga, OFS, Amiga nearly file system, Kickstart
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