that Compaq luggable was my pride and joy from 1985-86. Westinghouse had just introduced their APL (advanced Program loader) where you could actually use a portable computer as interface to Programmable Logic Controllers. IT WAS Da BOMB!
Our PLC's were playing catch-up but our program loader rocked the PLC world and was a users best friend. Overlay software was somewhere around a whopping $1100.00---ouch!, and very cleverly encriypted to only allow an installation if some kind of electronic fingerprint got moved off one computer --back onto the floppy and then you could install the software on a different box.
I hurriedly had to catch a plane and the airlines wanted me to check that miserable heavy thing into the luggage rather than have to study what this thing might be able to do in the seating area. Talk about the horror of seeing a dear work friend abused, I looked out an airplane window and saw some baggage handling monster grab and jerk the case off the transport cart and sent the keyboard swinging around the tarmac by its little acordian connector cable...then they were clueless as to how to place it back into position so it arrives with rope and tape holding the keyboard onto the case.
Even though I apologized to my Compaq luggable all the way to the hotel, I doubt it ever could forgive me.