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.
... Drayton station[?] Langley station[?] Slough station[?] Windsor & Eton Central station[?] Essex Road station[?] Drayton Park station[?] References J. ...