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Tech · died 2001

Mac OS X 10.0

2001 — 2001 · Apple Inc.
retired Reported · 2001

“The big cat that taught the Mac to purr on Unix bones.”

Released March 24, 2001, Mac OS X 10.0 — codenamed Cheetah — was Apple's first major leap away from the classic Mac OS. It swapped the old architecture for a Unix-like foundation built from BSD and NeXTSTEP, promising better stability and multitasking. Fans got Aqua, with its transparency and animation, plus the Dock, which would become a Mac signature for decades.

As a first release, Cheetah's job was to start something, not to last. It introduced the Carbon and Cocoa frameworks that would carry Mac software forward, and its successors quickly refined the foundation it laid. Its legacy is every macOS since — the cat lived on, just under newer names.

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They died around the same time

Mourn together

???? – 2001retired

LaserDisc

“Twelve inches of glory: too big to fail, too big to fit in the den.”

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2001 – 2001retired

Mac OS X 10.1

“One fast cat, gone ahead to the great keynote in the sky.”

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