Well they are graphical IDEs for mainframes. Java is also running very well on mainframes, as well as many web/appservers. This article makes a simplistic, thou

Well they are graphical IDEs for mainframes. Java is also running very well on mainframes, as well as many web/appservers. This article makes a simplistic, though a bit funny image of the mainframe. Yes, the core and old stuff looks like that - no, there is also modern software running on the mainframe, else companies would stop investing in it.