For decades, Apple’s operating system for the Mac, currently known as macOS, has featured the Blue Screen of Death on the system icon representing networked Windows PCs.

The NeXTSTEP operating system poularized concepts like draggable app windows and full-color icons. Thomas Schanz / Wikimedia The initial release of NeXTSTEP took place on September 18, 1989.

Sequoia is the newest operating system for Macs from Apple, announced Monday at WWDC. It includes some new features that will be found in iOS18 for the iPhone and iPadOS18 for the iPad, as well as ...