My first decent *NIX computer was an SGI Indigo that I rescued from a dumpster at a military-adjacent subcontractor that was also my first tech job.

Hmmm. Probably it wasn't sterilized by the book.

I took that beast home and loved it. It was actually reasonably beefy even into 2001, and IRIX was very slick *NIX by 2000 standards. When you turned it on you could see my electric meter spin faster.

Came with a huge-for-the-time monitor, probably a 19", which caused some envy among friends.*