1) Switch ON the power supply button to supply 5V to the circuit.

2) Press Switch 1 for input A1,Switch 2 for input A0,Switch 3 for input B1and Switch 4 for input B0,.

The switch in ON state is and the switch in OFF state is

3)
i)When the input A1A0 is greater than the input B1B0,LED 1 lits up.

ii)When the input A1A0 is lesser than the input B1B0,LED 2 lits up.

iii)When the input A1A0 is equal to the input B1B0,LED 3 lits up.

The LED in OFF state is and the LED in ON state is .

4) Click on "Add" Button to add data to the Truth Table.

5) Repeat Steps 2 to 4 for another set of data.

6) Click "Print" to get the print out of the Truth Table.

Construction of 2-Bit Comparator and verification of its operation

Power

IC 7404

IC 7411

IC 7411

IC 7408

IC 744075

Switch 1 (A1)

Switch 2 (A0)

Switch 3 (B1)

Switch 4 (B0)

LED 1
A≻B
A B

LED 2
A≺B
A B

LED 3
A=B
AB+A B













      TRUTH TABLE            

Serial No. A1 A0 B1 B0 A≻B A≺B A=B

      COLOR OF INPUTS            

Color Inputs
A1
A1'
A0
A0'
B1
B1'
B0
B0'