Eric Smith wrote:
I'm not sure about VTL, but Dutchess was a
specific generation of
bipolar gate array, containing up to 134 gates. It was basically
compatible with normal 5V TTL.
IBM *does* tend to do things differently, but they *do* document the
hell out of everything. The trick is finding the documentation, and
sometimes it can cost a goodly chunk of change.
Peace... Sridhar