Symbolics 386 coprocessor board sn: 130 rev.B

Symbolics offered a PC platform development and delivery system. This LBus board allowed a full PC hardware system to be used onboard, the hardware system complete with floppy reader etc. was paired with the Symbolics PC lisp software development environment which allowed full blooded Zetalisp power to be used in PC development and testing. Finally the delivery software image could be exported as a stand-alone PC app. This may be the only one of these boards in existence. Who would have thought at the time that the nerdy little PC would grow into the domineering platform it is today. (hires picture)