On 10/01/2015 09:53 PM, Don Y wrote:
There was a logic family (for sea of gates implementations) called STL.
Basically, single transistors (inverters!) that you would wire together
(on the die) to form gates. Tying collectors together ("wired-or"),
inverting inputs/outputs, etc.

It was grossly inefficient -- but very versatile.

Well when you get down to the nitty gritty a FPGA isn't much more than
that.