Going through my old Qbus and Unibus cards getting them ready to sell I found a very interesting card with four Z80 based computers on a Qbus card. It appears to me to be four complete 8 bit computers on a quad card, each with CPU and memory but no I/O. It is all socketed chips with the only other large chips being a pair of 2901 bit slicers. It is copyrighted 1983 by Virtual Microsystems and called the Z-Board. Made in the USA. Any idea what it was and what it was used for? Google turned up nothing other than VM was bought and sold several times. Three pictures at http://members.aol.com/innfogra/zboard.jpg A single one at http://members.aol.com/innfogra/zboard2.jpg If interested in purchase please contact me off list, here or at whoagiii(a)aol.com. Paxton Astoria