How are computer architectures different?

Question

Iron

Help me find information on 3 architectures: Preston, Von Neumann, Harvard. What are the similarities, differences and basic principles of work. In principle, I found two (Von Neumann, Harvard), but the first one I can’t find anything intelligible.

Answer 1

Von Neumann taught as a BE at Princeton. I'm just hinting ... Harvard - the development of von Neumann architecture designed to reduce the influence of the "neck" of the first.
read the wiki, there is more and more on the case.

Answer 2

Princeton architecture is best known as Von Neumann architecture.