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Kickstart 3.0 ROM chips installed in an Amiga 1200 Kickstart 1.2 floppy disk. Kickstart is the bootstrap firmware of the Amiga computers developed by Commodore International.Its purpose is to initialize the Amiga hardware and core components of AmigaOS and then attempt to boot from a bootable volume, such as a floppy disk.
Initial machines had a 1.4 beta ROM that looked for a "super" Kickstart disk similar to the 1000. It could load Kickstart versions 1.3, 2.0, and 2.04 this way or from specially named partitions on the hard disk. Developers could also "kick" in higher versions of the OS, up to 3.1 Amiga 3000T: 1991–1992 68030, 68040: 1-2 MB Chip 1-4 MB Fast 2.04
Workbench version 1.2 was the first to support Kickstart stored in a ROM. A Kickstart disk was still necessary for Amiga 1000 models; it was no longer necessary for Amiga 500 or 2000, but the users of these systems had to change the ROMs (which were socketed) to change the Kickstart version.
The Kickstart ROM is not a custom chip but a mask-programmed ROM chip for most versions. It contains the largest part of the operating system . Kickstart 1.x ROMs have a capacity of 256 KiB , Kickstart 2.x and 3.x contain 512 KiB. 32-bit Amigas use a pair of 16-bit chips to provide full-width access.
Amiga OS v3.1.4 additionally also came with newer releases of the Amiga Kickstart-ROMs (either as a digital download in Kickstart-images, or shipped with physical Kickstart-ROMs). In 2019, AmigaOS 3.1.4.1 was released as a software only update to Amiga 3.1.4 free-of-charge, mainly as a bug fix. [32]
The original Amiga 1000 is the only model to have 256 KB of Amiga Chip RAM, which can be expanded to 512 KB with the addition of a daughterboard under a cover in the center front of the machine. [10] RAM may also be upgraded via official and third-party upgrades, with a practical upper limit of about 9 MB of "fast RAM" due to the 68000's 24-bit ...
There are various editions of Kickstart ROMs starting with Kickstart v1.1 for the Amiga 1000, v1.2 and v1.3 for the A500, Kickstart v2.1 on A500+, Kickstart v2.2 for A600 and dual ROMs for Kickstart v3.0 and 3.1 for A1200 and A4000. After Commodore's demise there have been new Kickstart v3.1 ROMs made available for both the A500 and A600 Computers.
Commodore Amiga 1000 personal computer with 1081 RGB monitor. Selected picture 4 ... Amiga Kickstart 2.05 ROM-Chip. Selected picture 8 ...