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Take a step back in time to 1987 and let's have a look at RSX280 – an operating system for the Zilog Z280 CPU that's oozing vintage vibes. It's like DEC's old-school RSX-11M just decided to throw a party in the 21st century. 🎉

RSX280 is the life of the tech-retro party, juggling multiple tasks, users, and terminals like a pro. Its micro-kernel operates on a first come, first served basis (or round-robin scheduling for the tech-savvy). It's got a Quick Input-Output mechanism that's as zippy as a roller-skating waiter. And, the Asynchronous System Trap support and Event Flags? Now that's what I call a true blast from the past.

But wait, there's more! The unknown individual named hperaza designes the OS such, that it lets you add on to the kernel's functionality like lego blocks if you've got the privileged tasks. It's got a Task Directory that's faster than a greyhound on a race track. And guess what? You can even stick tasks in the memory for lightning-fast activation.

RSX280 doesn't shy away from hardware either. It cosies up with Bill Shen's Z280RC board and Tilmann Reh's CPU280 board, each boasting its own unique set of kernel and drivers.

Now, before you get too excited, remember it's a work in progress. It's like an old car that runs pretty well, but every so often, you might find a bug or two under the hood. But hey, what's a vintage experience without a few hiccups along the way?

So strap in, because with RSX280, it's time to move into the 16 bit era with the Z280.