Launch of Macintosh II

Apple introduced the Macintosh II, the first open-architecture, color-capable Macintosh. It featured NuBus expansion slots, allowing for customizable display cards and other peripherals.

Significance

This event fundamentally changed the trajectory of the Macintosh, moving it from a closed, monochrome appliance to a modular, powerful workstation, paving the way for advanced graphics cards and enabling a wider range of professional applications.