IBM is a bunch of businesses, some of which still likely make sense -- their mainframe hardware line (S/360 successors, currently branded as z/System), and asso

IBM is a bunch of businesses, some of which still likely make sense -- their mainframe hardware line (S/360 successors, currently branded as z/System), and associated products, are still actively developed, and very likely profitable, considered on their own. But that may not be enough to carry the rest of the business.