10 Oct
2010
10 Oct
'10
2:07 p.m.
On 10 Oct 2010 at 16:03, Sridhar Ayengar wrote:
Eric Smith wrote:
I seem to recall that "VTL" is an acronym for "variable threshold
logic" and dates back at least to the 1960s.
--Chuck
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.