Computer Science for IGCSE & O level - Boolean Logic (Section 12 - No. 22)
A truth table is used to:
Show all possible input and output combinations for a digital circuit.
Calculate the current flowing through a circuit.
Display the voltage levels in a circuit.
Determine the physical layout of a circuit.
Explication
A truth table shows the behavior of a logic gate by displaying every possible input condition and its associated output.