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» Personal Loan No Credit Check, Online Economics » Amiga » Topics begins with A » AmigaOS


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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.

Development

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:

  • 32-Bit-Architektur
  • preemptive multitasking similarly as with Unix computers (and be enough before Windows)
  • Mikrokernel architecture with reloadable LIBRARies and device drivers (DEVICEs)
  • programmable real time interrupts with small latency
  • programmable file system devices
  • application-independent printer drivers
  • window-oriented graphic user surface
  • application-oriented Desktops (so-called screen) in different diagram and color dissolution
  • starting from the version 2.1 an international localization (i18n) is dynamically possible

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.

Systems derived from AmigaOS

  • MorphOS

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.

  • AROS and depr.

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

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.

API

Diagram

2D

  • CyberGraphX of franc Mariak
  • Picasso 96 of VillageTronic
  • EGS (obsolet)

3D

  • MiniGL of Hyperion Entertainment
  • Warp3D (low level API) of Haage & partners
  • StormMesa (agl.library) of Haage & partners
  • CyberGL of franc Mariak

Audio

  • AHI von Martin Blom
  • CAMD for MIDI

Video

  • VHI, of IOSPIRIT GmbH
  • tv.library, of Elbox computer
  • tvcard.library, of Guido Mersmann

See also

Amiga, OFS, Amiga nearly file system, Kickstart

Literature

  • The Amiga ROM Kernel manual: LIBRARies, ISBN 0-201-56774-1
  • The Amiga ROM Kernel manual: DEVICE, ISBN 0-201-56775-X
  • The Amiga ROM Kernel manual: Includes and Autodocs, ISBN 0-201-56773-3
  • The Amiga user interface Style Guide, ISBN 0-201-57757-7
  • Ralph Babel, The Amiga guru Book, Taunusstein 1993, self publishing house
  • Wilfried Amiga DOS 1,3, ISBN 3-89090-802-0
  • Guidance house, Amiga DOS for users - a learning course, ISBN 3-926847-09-3

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