In the given circuit,$A$ and $B$ are two inputs and $C$ is the output. Which logic gate does this circuit represent?

The input and the output waveforms of a logic gate are shown in the diagram. Identify the logic gate.

The logic circuit shown above is equivalent to:

Explain the types of logic systems used in digital electronics.

The logic circuit shown below has the input waveforms $A$ and $B$ as shown. Pick out the correct output waveform.

For the given combination of logic gates,the inputs $A, B$ and $C$ are as follows. If $A=B=C=0$ and $A=B=1, C=0$,then the logic states of output $D$ are respectively: