The custom chipset at the core of the Amiga design appeared in three distinct generations, with a large degree of backward-compatibility.
In 1988, the release of the Amiga A2024 fixed-frequency monochrome monitor with built-in framebuffer and flicker fixer hardware provided the Amiga with a choice of high-resolution graphic modes (1024×800 for NTSC and 1024×1024 for PAL) [REF].