It looks like board 2 is for a Sun 3/50 workstation. Board 1 is some
kind of micro-programmed processor based on AM29331 and AM29331. There
are also some Analog Devices DSPs.
AM29000 based processor with Analog Device DSPs
http://www.chdickman.com/board1.jpg
Sun 3/50 processor
http://www.chdickman.com/board2.jpg
I think this is a 3/60 processor. Not 3/50.
Can anyone identify them?
-chuck