Was not that newsletter for a APPLE II, co-processor
board?
Did anybody ever use one, or any kind of general purpose co-processor
boards for the PC?
>
HP made the 82300C BASIC Language Processor and the 82324A Measurement
Coprocessor cards, which were basically 68000 and 68030 based HP 9000
200/300 class systems on ISA bus cards which used the host PC for I/O
and ran HP BASIC 5.x or 6.x
http://www.hpmuseum.net/display_item.php?hw=681
http://www.hpmuseum.net/display_item.php?hw=909
Not really general purpose co-processors, although I suppose your
could always write your own software to run on them instead of HP
BASIC if you were motivated to do so.