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truth_tables

When multiple inputs control a single output, it may help to organize all of the possible combinations into a form known as a “truth table”. In a truth table, all possible combinations are summarized in a table of inputs, and the result is identified in an output column.

When creating a truth table for binary conditions (like and on/off switch), it helps to follow a pattern. This pattern is also common in binary codes.

Inputs Output
Switch Positions Load Condition
A B C Result
0 0 0 ?
0 0 1 ?
0 1 0 ?
0 1 1 ?
1 0 0 ?
1 0 1 ?
1 1 0 ?
1 1 1 ?

Can you find any patterns in the input columns of this truth table? Test each of the eight input conditions, and record the output result. Can you find any patterns in the output? Did you discover anything by using this table that you did not notice when you first explored the circuit boxes?

Next: Logical Terms

truth_tables.txt · Last modified: 2022/05/30 01:06 by scox