Opis
Although analog computation was eclipsed by digital computation in the second half of the twentieth century, it is returning as an importantalternative computing technology. Indeed, as explained in this article, theoretical results imply that analog computation can escape from the limitationsof digital computation. Furthermore, analog computation has emerged as an important theoretical framework for discussing computation in the brain andother natural systems.
Analog computation gets its name from an analogy, orsystematic relationship, between the physical processes in the computer and those in thesystem it is intended to model or simulate (the primarysystem). For example, the electrical quantities voltage, current, and conductancemight be used as analogs of the fluid pressure, flow rate, and pipe diameter. Morespecifically, in traditional analog computation, physical quantities in the computation obeythe same mathematical laws as physical quantities in the…
