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by kens 912 days ago
You're describing a "hybrid computer". These were introduced in the late 1950s, combining a digital processor with analog computing units. I don't understand why you and kragen want to redefine standard terms; this seems like a pointless linguistic exercise.
2 comments

because 'computer' has a meaning now that it didn't have 65 years ago, and people are continuously getting confused by thinking that 'analog computers' are computers, as they understand the term 'computers', which they aren't; they're a different thing that happens to have the same name due to a historical accident of how the advent of the algorithm happened

this is sort of like how biologists try to convince people to stop calling jellyfish 'jellyfish' and starfish 'starfish' because they aren't fish. the difference is that it's unlikely that someone will get confused about what a jellyfish is because they have so much information about jellyfish already

my quest to get people to call cellphones 'hand computers' is motivated by the same values but is probably much more doomed

"Hybrid computer" cannot be considered as a standard term, because it has been used ambiguously in the past.

Sometimes it has been applied to the kind of computers mentioned by me, with a digital control part and a completely analog arithmetic part.

However it has also been frequently used to describe what were hybrid arithmetic parts, e.g. which included both digital registers and digital adders and an analog section, for instance with analog integrators, which was used to implement signal processing filters or solving differential equations.

IMO, "hybrid computer" is appropriate only in the second sense, for hybrid arithmetic parts.

The control part of a CPU can be based only on a finite state automaton, so there is no need for any term to communicate this.

On the other hand, the arithmetic part can be digital, analog or hybrid, so it is useful to speak about digital computers, analog computers and hybrid computers, based on that.