4 ms·It's the invisible machine. They are all still running core systems in a lot of companies.by _JamesA_ 8y agoIt's the invisible machine. They are all still running core systems in a lot of companies.crb002 8y agoFar from invisible in the Des Moines market. Mainframe is still king of CA systems in the CAP model.Domark 8y agoDes Moines is roughly the size of Bloomington, MN.