Lisa is the display controller chip introduced with the Advanced Graphics Architecture (AGA) in the Amiga 1200, Amiga 4000, and CD32. As the successor to the Denise chip found in OCS and ECS systems, Lisa supports 24-bit color palettes, higher resolutions up to 1280x512, and improved bandwidth for graphics operations. It works in conjunction with the Alice chip to provide significantly enhanced graphical capabilities compared to earlier Amiga models.