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.
... (+ 1980) February 25 - Adelle Davis[?], nutritionist, writer (+ 1974) February 29 - Jimmy Dorsey, bandleader (+ 1957) March 1 - Glenn Miller, bandleader (+ ...