‘For support, contact me’ sign responded to after 20 years

I think its dell. Not much to go on, but Texas, global manufacturing and 20yrs seem like good clues.

I was sure it was Cpq, especially after the Tandem thing. But HP bought them AFTER Cpq got tandem, and it could be them. But HP would never have that kind of badging on a system.

No concrete clue.