I had a lot of finals, and the answer to this comment that I did not write was essentially accurate. The people who think about computers this way are the people who have to implement them on analog devices, aka the electrical engineers. There is a discrete analog (lol) in the form of coding theory, since it often more practical to make a slightly noisy discrete space and then perform discrete error correction.

I was looking at your other comments to see how I should answer you, and I gathered that I can just link you papers. I imagine Von neumann and Hamming and shannon all have something to say about this topic, but since we're talking about quantum computing, I believe the relevant work can be found in these, and their references.

https://arxiv.org/abs/quant-ph/9705052

https://arxiv.org/abs/quant-ph/0403025

I'll check back on this thread if you have questions. If I had all of the answers to my own questions though, I would be famous.