SAM is short for Super Acceleration Machine.
Doc: Dr Ograbgo, how about a little plug time on the SAM computer? I've never hacked before with one of those babies.
Dr Ograbgo: What did you say, Ranger Hartford?
Doc: I'd like a tour of your mainframe computer here, SAM.
Dr Ograbgo: (yelling) We're very busy here and we don't have time to let computer jockeys go freaking about in the mainframe!
Technician James: You're crazy! The Galaxy Rangers will hunt you down!
Dr. Ograbgo: Bah, a bunch of space cowboys aren't going to give us any problem.