The IBM EA-6B, used for the Navy's EA-6B Prowler, an electronic warfare aircraft. This marked the first time a micro-programmed logic control, implemented with read-only storage, was used in aerospace applications, ca 1960s.
It's an earlier model of the "space shuttle computer". Seems like it started off as a VERY stripped-down version of a System/360, and then grew as technology allowed. (Like a more extreme version of the Microvax I -> later microvaxen case.)
The name is obviously a play on "S/360" - but in radians instead of degrees. (And spherical instead of 2d?)
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