Logic Structures & Mathematical Reasoning
Application of Logic
NOT-Gate
A NOT-gate (or inverter) is a circuit with one input and one output signal. If the input signal is 1, the output signal is 0. Conversely, if the input signal is 0, then the output signal is 1.
![Not Gate](Screenshots/not-gate.png)
AND-Gate
An AND-gate is a circuit with two input signals and one output signal. If both input signals are 1, the output signal is 1. Otherwise the output signal is 0. Symbolic representation & Input/Output Table is shown below.
![And Gate](Screenshots/and-gate.png)
OR-Gate
An OR-gate is a circuit with two input signals and one output signal. If both input signals are 0, then the output signal is 0. Otherwise, the output signal is 1.
Symbolic representation & Input/Output Table is shown below.
![OR Gate](Screenshots/or-gate.png)
Combinatorial Circuit:
A Combinational Circuit is a compound circuit consisting of the basic logic gates such as NOT, AND, OR.
![Combinatorial Circuit](Screenshots/combinatorial-circuit.png)
Exercise and Solution
Determine the output for a given input:
Indicate the output of the circuit below when the input signals are P = 1, Q = 0 and R = 0. See the diagram below:
![Combinatorial Circuit Question](Screenshots/combinatorial-circuit-question.png)
Solution:
![Combinatorial Circuit Answer](Screenshots/combinatorial-circuit-answer.png)
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Date of last modification: 2024