Babbage

Famous inventor Charles Babbage may never have built his Analytical Engine due to his inability to focus on manufacturing, but he did create punchcards to program it.
What the punchcards will do, we’re not completely sure.
We scanned in all his blueprints and notes, and our simulations suggest that it involves basic counting and number processing functions, but then when the museum staff built a Difference Engine from his original plans, the RING BELL function chimed out strange, plaintive messages in Morse Code…
Messages from the dead.
Visitors kept mistaking it for a fire alarm, so we disconnected the bell.