page_title: Amiga 4000
section_title: Operating system
hierarchical_section_title: Amiga 4000 / Technical information / Operating system
caption_attribution_description: Svenska: Amiga 4000 genomgår hårdvaruuppgradering
context_page_description: The Commodore Amiga 4000, or A4000, is the successor of the A2000 and A3000 computers. There are two models: the A4000/040 released in October 1992 with a Motorola 68040 CPU, and the A4000/030 released in April 1993 with a Motorola 68EC030.
  The Amiga 4000 system design was generally similar to that of the A3000, but introduced the Advanced Graphics Architecture chipset with enhanced graphics. The SCSI system from previous Amigas was replaced by the lower-cost Parallel ATA.
  The original A4000 is housed in a beige horizontal desktop box with a separate keyboard. Later, Commodore released an expanded tower version called the A4000T.
context_section_description: The A4000 shipped with AmigaOS 3.0, consisting of Workbench 3.0 and Kickstart 3.0, which together provide a single-user multi-tasking operating system and support for the built-in hardware. Following release of AmigaOS 3.1 it became possible to upgrade the A4000 by installing compatible Kickstart 3.1 ROM chips. The later AmigaOS 3.5 and 3.9 releases were software-only updates requiring Kickstart 3.1.
  AmigaOS 4, a PowerPC-native release of the operating system, can be used with the A4000 provided a CyberStorm PPC board is installed. Likewise, MorphOS, an alternative Amiga-compatible operating system, can be used with this hardware.
  Variants of platform-independent operating systems, such as Linux and BSD, can also be used with the A4000.
caption: Amiga 4000 with case open
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