3-bit Adder Prelab Exercise: 1) 2) Draw the schematic for a 3-bit full adder. The schematic for a 1-bit full adder is shown below. Label the chips and pins on your schematic Cin- Cout Note: The way you test an adder is to put two binary numbers into it and verify that what comes out i:s the sum of the two numbers you put into it. 1) Build a 1-bit adder circuit as shown in the schematic above 2) Test the 1-bit adder to make sure it functions correctly. 3) Once the 1-bit adder works properly, expand it to a 2-bit adder. 4) Test the 2-bit adder to make sure it functions properly. If it doesn't, troubleshoot it until it does. 5) Once the 2-bit adder works, expand it to 3-bits. 6) When your 3-bit adder works, show it to the TA