CP/M, 64K (+ an absolutely unuseable extra board option.. with some Neanderthal 'DOS' on it and a whopping 256K memory.) 5" 80-teensy-char CRT, 18# er, portative -- to boot. Always amazed when it starts up, its two AG-13? small cmos cells having been replaced last ~ 1987. No point in trying for >Y2K, in any event.
To run Eliza.. for any neighbor who needs a session with a shrink.
Why.. that's.. the pre-Solitaire mind-lock-in for any computer illiterate ... Still!
(Though it requires a higher level of consciousness to play, of course.)
:-þ