Mac OS 9 was only released on Mini Disc in Japan. Here is an example of a rare English language version.
(Probably the most 90's thing you will see today.)
The limited edition Welcome to Mac OS X intro music LP is a rare find for Macintosh collectors.
Mac OS X 10.2 Jaguar was the first version of Mac OS to be released on two double-sided LP records.
Mac OS 9 sounds so much warmer when you install from the original vinyl.
Solaris Zune
You’ve heard of the Apple iPod+HP line of Hewlett-Packard-branded iPods, but have you heard of the Microsoft Zune+Sun line of Sun Microsystems-branded Zune digital media players? Built on its own RISC-based SPARC processor architecture running Solaris 9, battery life was abysmal.