Redirected from System 390
System/390 is a series of IBM mainframe models. Successor to the System/370s, and more specifically the System 370/ESAs[?]. Rebranded as zSeries.
... for any period of time without a legitimate basis of authority. The first to have the title of "Tyrant" was Pisistratus in 560 BC. In modern times Tyrant has come to ...