Nothing ever truly dies on the internet and these retro operating systems are live and kicking and ready for you to use.

Operating Systems Windows Happy birthday, Windows 10—one of Microsoft's most popular operating systems ever reaches its 10-year milestone, just three months before it gets hoofed off to OS ...

Haiku is for those who experienced either NeXT or AfterStep and want an operating system that looks and feels a bit old school but performs faster than any OS they've ever experienced.