TRUTH-TABLE:
A TRUTH-TABLE as suggested is a tabular or graphic technique for listing all possible combinations of input variables, arguments,or whatever they may be called,in a vertical order,listing each input combination one row at a input combination one row at a time .when every possible combination is recorded,each combination can be studied to determine whether the "output"or "combined interaction" of that combination should be ASSERTED or NOT-ASSERTED.
the TRUTH-TABLE came into existence during the early year of logic study when logician used them to validate their thinking. it is somewhat unfortunate that is TRUE/FALSE connotation has been carried over into digital hardware design . in digital design, the TRUTH-TABLE is used primarily to specify an INPUT/OUTPUT relation for a digital network,not to determine the truth value of an argument.
example of a truth table:
INPUTS OUTPUTS
a b c
0 0 0
0 1 1
1 0 1
1 1 1
this is a example of a OR gate truth table where a and b is a input and c is a output
a b c
0 0 0
0 1 1
1 0 1
1 1 1
this is a example of a OR gate truth table where a and b is a input and c is a output
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