Experiment 1  The Variables of the Boolean Algebra
Boolean algebra works with variables ,
A,
B,
C, etc.
The variables can take only two values:
"TRUE" and "FALSE",
or usually "1" and "0".
You can picture the behavior of a Boolean variable
as an open or closed switch and register the
result Q
in a truth table...
Simplified switch model

Truth table.


Open switch:
A = 0,

Closed switch:
A = 1.
In electronics, one does not speak of variables and their values,
but of Boolean signals or
digital signals...
Circuit diagram generation of a Boolean signal.

Circuit generation of a Boolean signal.
(Enlarge)

The result Q
is indicated by the LED...

Q = 0:
LED1 is dark.

Q = 1:
LED1 lights up.
In the next experiments,
you perform operations on Boolean variables...