System/390 is a series of IBM mainframe models. Successor to the System/370s, and more specifically the System 370/ESAs[?]. Rebranded as zSeries.
... is 19.9/km² (51.6/mi²). There are 205 housing units at an average density of 8.7/km² (22.6/mi²). The racial makeup of the town is 46.37% White, 44.23% ...