Interesting. But why were they called big iron? It doesn't seem to be in IBMs marketing material (at least I couldn't find it) and the wikipedia reference point

Interesting. But why were they called big iron? It doesn't seem to be in IBMs marketing material (at least I couldn't find it) and the wikipedia reference points to a 2005 vulture article where they call it the big iron[1] [1] https://www.theregister.co.uk/2005/07/20/ibm_mainframe_refresh/ https://www.theregister.co.uk/2005/07/20/ibm_mainframe_refre...