PS
I've thought of an example - not from the computer world though. The word is "feedback", which (in the 1920 meaning -
Online Etymology Dictionary) refers specifically to the noise a microphone makes when it's placed in front of the loudspeaker that it (the microphone) is connected to. A quiet noise
feeds back into the system and becomes a shrill whine/shriek. The more general use of "feedback" in the more common sense of conversational reciprocation (e.g. a speaker at a presentation might say 'I'd be glad to answer questions, but could you keep your feedback for the Q&A session at the end of my talk?') is more recent - I don't have a reference for this, but I don't remember hearing it used much before the '80s.
b