[southern_cross]

> We only have two operating systems now Windows and Linux.

That all depends on what platform(s) you're using. For example, IBM still gives you zOS, AIX, the System i OS, and so on. And there are other operating systems for other platforms.

The computing world doesn't begin and end with Wintel, you know; it may seem that way sometimes, though.

[z3phyr]

AIX is very unixy, though zOS looks pretty alien from it's description. I would love to work on zOS, but there is very little window of opportunity for that.

I would love to see something like https://pharo.org/ booting directly. Its an OS for all intents and purposes (To my realization, languages like Smalltalk, Lisps, Forths ARE Operating Systems)