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Starting electronics
So, the Boolean statement:
also expresses the NAND gate.
In other words:
Interesting!
NOR from AND and NOT
And, just for the sake of completion, we can also work out
that a NOR gate can be created by inverting the inputs of an
AND gate.
As we’ve done so far in this book, we’ll do this first experimentally,
building up the circuit and checking results. Then
we’ll do it mathematically.
Figure 10.43 shows a circuit we can use to do this. It’s basically
a two input AND gate, the inputs of which have been
inverted by NOT gates.
Figure 10.44 shows a possible breadboard layout you can follow
to build the experimental circuit on, while Figure 10.45
is an uncompleted truth table for you to complete with your
results, and Figure 10.46 is the complete truth table whose
results should match yours.
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