Yes but the emphasis is different. Modular synths typically come with oscillators; analog computers typically don't. But if you want an oscillator you can build

Yes but the emphasis is different. Modular synths typically come with oscillators; analog computers typically don't. But if you want an oscillator you can build one out of integrators in a feedback configuration. Modular synths typically come with filters; analog computers typically don't. Analog computers do come with integrators which could be considered very weird lowpass filters. Likewise a differentiator can be considered a weird and always imperfect highpass filter. Both typically come with adders, but a modular synth will call this a mixer. Both typically come with multipliers but a modular synth will often call a multiplier a ring modulator (and it might not multiply all four quadrants). (Just to make things more confusing, at RF frequencies the word "mixer" typically refers to a multiplier rather than an adder. In the audio range, mixers are adders.) Modular synths are designed for making sound; analog computers are designed for precise, much slower waveform generation. Its circuits might not even be capable of operating fast enough to make sound.