Jay wrote about the HP 2114/2115/2116 minicomputers from the late 1960s.
David Dick asks:
Was there something like an HP1000? I seem to
remember being loosely
associated with a project that involved one. Where might that fit in?
The HP 1000 series was essentially the later 21xx processors sold with
a marketing focus toward embedded systems. For a while some of the
processors were given both 21xx and 1000 series designations, and IIRC
the actual ordering numbers continued to be 21xx for quite a while.