Information-acquiring von Neumann architecture of a computer: Functionality and subjectivity

We design the information-acquiring von Neumann architecture of a computer in a fine-grained or coarse-grained model, where information is carried by classical bits. This architecture enables both a Hamiltonian process converting a given input pure state to another output pure state of the system to be considered (functionality) and a physical process to acquire information (subjectivity). The latter process is identified with the projection hypothesis in projective quantum measurement in the ensemble interpretation of quantum mechanics.