Lewis keeps his old Commodore 64, the first computer he programmed, on his desk, much to the annoyance of his girlfriend.
This C64 uses lower case characters for its boot screen.
Year of feature (shown above)
The C64 would display lowercase on its boot screen in "shifted" mode. I know this could be done with a poke, though if I remember, there was a keystroke to do it. The setting could also been done with a fastload cart that had preference settings. The screen color is not factory, so it could be cart controlled preferences.
Lo unico que valio la pena de esta pelicula fue ver la commodore 64, la disquetera 1541 y el monitor 1702. No pense que iba a ser tan mala. El tipo poniendola en el agujero de la computadora asqueroso e impresentable.
The keystroke is C= Shift IIRC.