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The NOT gate has a
single input and one
output.
The little bubble on the
output indicates that
the output goes LOW when
the input goes HIGH.
We can say that the
output goes LOW when the
input is ACTIVATED.
The opposite happens
when the input is LOW.
The output goes HIGH.
The TRUTH TABLE shows
that the output is the
opposite of the input.
The NOT gate is also
called an INVERTER. It
inverts the input.
_
The Boolean expression
is A = Z
Which is read as, NOT A
EQUALS Z
or IF A IS LOW THEN Z IS
HIGH
or BAR A = Z
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