Tiny Digital Circuit Analysis (TDCA) is a shareware program that
allows a student or engineer to simulate a small digital circuit
design. This program allows one to enter a digital circuit design
by entering each device type and its connections Then the circuit
can be evaluated with entered inputs. The circuit can also be
graphically displayed with all of its cir cuit/device input/output
values displayed. This graphic display is very helpful for finding
race conditions and observing inter nal circuit states.