Solution

Key Points

 The combinational circuit is a circuit in which we combine the different gates in the circuit, for example, encoder, decoder, multiplexer and demultiplexer.

Some of the characteristics of combinational circuits are following −

• The output of a combinational circuit at any instant of time depends only on the levels present at input terminals.

• The combinational circuit does not use any memory. The previous state of input does not have any effect on the present state of the circuit.

• They do not have any feedback arrangement.

• A combinational circuit can have an n number of inputs and m number of outputs.