I know this is very late in the day/thread but...

I think "cybernetics" was a term invented by Turing, the computer genius/visionary and man largely responsible for breaking the Enigma code. He also first conceived of AIs, which is really where the phrase comes in to its own, as it is meant to mean "steersmanship".. or perhaps self-steering.
Or something.
Derived from an ancient Greek mythical figure I recall.

And I remember the Cybermen too! Now, THEY used to have me hiding behind the couch.